| Index: third_party/mongoose/mongoose.c
|
| diff --git a/third_party/mongoose/mongoose.c b/third_party/mongoose/mongoose.c
|
| deleted file mode 100644
|
| index 67ec9bd3a7ad4024db9b10b3e1f8f5adad664ee1..0000000000000000000000000000000000000000
|
| --- a/third_party/mongoose/mongoose.c
|
| +++ /dev/null
|
| @@ -1,4264 +0,0 @@
|
| -// Copyright (c) 2004-2011 Sergey Lyubka
|
| -//
|
| -// Permission is hereby granted, free of charge, to any person obtaining a copy
|
| -// of this software and associated documentation files (the "Software"), to deal
|
| -// in the Software without restriction, including without limitation the rights
|
| -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
| -// copies of the Software, and to permit persons to whom the Software is
|
| -// furnished to do so, subject to the following conditions:
|
| -//
|
| -// The above copyright notice and this permission notice shall be included in
|
| -// all copies or substantial portions of the Software.
|
| -//
|
| -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
| -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
| -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
| -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
| -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
| -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
| -// THE SOFTWARE.
|
| -
|
| -#if defined(_WIN32)
|
| -#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005
|
| -#else
|
| -#define _XOPEN_SOURCE 600 // For flockfile() on Linux
|
| -#define _LARGEFILE_SOURCE // Enable 64-bit file offsets
|
| -#ifndef __STDC_FORMAT_MACROS
|
| -#define __STDC_FORMAT_MACROS // <inttypes.h> wants this for C++
|
| -#endif // __STDC_FORMAT_MACROS
|
| -#endif
|
| -
|
| -#if defined(__SYMBIAN32__)
|
| -#define NO_SSL // SSL is not supported
|
| -#define NO_CGI // CGI is not supported
|
| -#define PATH_MAX FILENAME_MAX
|
| -#endif // __SYMBIAN32__
|
| -
|
| -#ifndef _WIN32_WCE // Some ANSI #includes are not available on Windows CE
|
| -#include <sys/types.h>
|
| -#include <sys/stat.h>
|
| -#include <errno.h>
|
| -#include <signal.h>
|
| -#include <fcntl.h>
|
| -#endif // !_WIN32_WCE
|
| -
|
| -#include <time.h>
|
| -#include <stdlib.h>
|
| -#include <stdarg.h>
|
| -#include <assert.h>
|
| -#include <string.h>
|
| -#include <ctype.h>
|
| -#include <limits.h>
|
| -#include <stddef.h>
|
| -#include <stdio.h>
|
| -
|
| -#if defined(_WIN32) && !defined(__SYMBIAN32__) // Windows specific
|
| - #ifdef _WIN32_WINNT
|
| - #undef _WIN32_WINNT
|
| - #endif
|
| -#define _WIN32_WINNT 0x0400 // To make it link in VS2005
|
| -#include <windows.h>
|
| -#include <winsock2.h>
|
| -
|
| -#ifndef PATH_MAX
|
| -#define PATH_MAX MAX_PATH
|
| -#endif
|
| -
|
| -#ifndef _WIN32_WCE
|
| -#include <process.h>
|
| -#include <direct.h>
|
| -#include <io.h>
|
| -#else // _WIN32_WCE
|
| -#define NO_CGI // WinCE has no pipes
|
| -
|
| -typedef long off_t;
|
| -#define BUFSIZ 4096
|
| -
|
| -#define errno GetLastError()
|
| -#define strerror(x) _ultoa(x, (char *) _alloca(sizeof(x) *3 ), 10)
|
| -#endif // _WIN32_WCE
|
| -
|
| -#define MAKEUQUAD(lo, hi) ((uint64_t)(((uint32_t)(lo)) | \
|
| - ((uint64_t)((uint32_t)(hi))) << 32))
|
| -#define RATE_DIFF 10000000 // 100 nsecs
|
| -#define EPOCH_DIFF MAKEUQUAD(0xd53e8000, 0x019db1de)
|
| -#define SYS2UNIX_TIME(lo, hi) \
|
| - (time_t) ((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF)
|
| -
|
| -// Visual Studio 6 does not know __func__ or __FUNCTION__
|
| -// The rest of MS compilers use __FUNCTION__, not C99 __func__
|
| -// Also use _strtoui64 on modern M$ compilers
|
| -#if defined(_MSC_VER) && _MSC_VER < 1300
|
| -#define STRX(x) #x
|
| -#define STR(x) STRX(x)
|
| -#define __func__ "line " STR(__LINE__)
|
| -#define strtoull(x, y, z) strtoul(x, y, z)
|
| -#define strtoll(x, y, z) strtol(x, y, z)
|
| -#else
|
| -#define __func__ __FUNCTION__
|
| -#define strtoull(x, y, z) _strtoui64(x, y, z)
|
| -#define strtoll(x, y, z) _strtoi64(x, y, z)
|
| -#endif // _MSC_VER
|
| -
|
| -#define ERRNO GetLastError()
|
| -#define NO_SOCKLEN_T
|
| -#define SSL_LIB "ssleay32.dll"
|
| -#define CRYPTO_LIB "libeay32.dll"
|
| -#define DIRSEP '\\'
|
| -#define IS_DIRSEP_CHAR(c) ((c) == '/' || (c) == '\\')
|
| -#define O_NONBLOCK 0
|
| -#if !defined(EWOULDBLOCK)
|
| -#define EWOULDBLOCK WSAEWOULDBLOCK
|
| -#endif // !EWOULDBLOCK
|
| -#define _POSIX_
|
| -#define INT64_FMT "I64d"
|
| -
|
| -#define WINCDECL __cdecl
|
| -#define SHUT_WR 1
|
| -#define snprintf _snprintf
|
| -#define vsnprintf _vsnprintf
|
| -#define sleep(x) Sleep((x) * 1000)
|
| -
|
| -#define pipe(x) _pipe(x, BUFSIZ, _O_BINARY)
|
| -#define popen(x, y) _popen(x, y)
|
| -#define pclose(x) _pclose(x)
|
| -#define close(x) _close(x)
|
| -#define dlsym(x,y) GetProcAddress((HINSTANCE) (x), (y))
|
| -#define RTLD_LAZY 0
|
| -#define fseeko(x, y, z) fseek((x), (y), (z))
|
| -#define fdopen(x, y) _fdopen((x), (y))
|
| -#define write(x, y, z) _write((x), (y), (unsigned) z)
|
| -#define read(x, y, z) _read((x), (y), (unsigned) z)
|
| -#define flockfile(x) (void) 0
|
| -#define funlockfile(x) (void) 0
|
| -
|
| -#if !defined(fileno)
|
| -#define fileno(x) _fileno(x)
|
| -#endif // !fileno MINGW #defines fileno
|
| -
|
| -typedef HANDLE pthread_mutex_t;
|
| -typedef struct {HANDLE signal, broadcast;} pthread_cond_t;
|
| -typedef DWORD pthread_t;
|
| -#define pid_t HANDLE // MINGW typedefs pid_t to int. Using #define here.
|
| -
|
| -struct timespec {
|
| - long tv_nsec;
|
| - long tv_sec;
|
| -};
|
| -
|
| -static int pthread_mutex_lock(pthread_mutex_t *);
|
| -static int pthread_mutex_unlock(pthread_mutex_t *);
|
| -static FILE *mg_fopen(const char *path, const char *mode);
|
| -
|
| -#if defined(HAVE_STDINT)
|
| -#include <stdint.h>
|
| -#else
|
| -typedef unsigned int uint32_t;
|
| -typedef unsigned short uint16_t;
|
| -typedef unsigned __int64 uint64_t;
|
| -typedef __int64 int64_t;
|
| -#define INT64_MAX 9223372036854775807
|
| -#endif // HAVE_STDINT
|
| -
|
| -// POSIX dirent interface
|
| -struct dirent {
|
| - char d_name[PATH_MAX];
|
| -};
|
| -
|
| -typedef struct DIR {
|
| - HANDLE handle;
|
| - WIN32_FIND_DATAW info;
|
| - struct dirent result;
|
| -} DIR;
|
| -
|
| -#else // UNIX specific
|
| -#include <sys/wait.h>
|
| -#include <sys/socket.h>
|
| -#include <sys/select.h>
|
| -#include <netinet/in.h>
|
| -#include <arpa/inet.h>
|
| -#include <sys/time.h>
|
| -#include <stdint.h>
|
| -#include <inttypes.h>
|
| -#include <netdb.h>
|
| -
|
| -#include <pwd.h>
|
| -#include <unistd.h>
|
| -#include <dirent.h>
|
| -#if !defined(NO_SSL_DL) && !defined(NO_SSL)
|
| -#include <dlfcn.h>
|
| -#endif
|
| -#include <pthread.h>
|
| -#if defined(__MACH__)
|
| -#define SSL_LIB "libssl.dylib"
|
| -#define CRYPTO_LIB "libcrypto.dylib"
|
| -#else
|
| -#if !defined(SSL_LIB)
|
| -#define SSL_LIB "libssl.so"
|
| -#endif
|
| -#if !defined(CRYPTO_LIB)
|
| -#define CRYPTO_LIB "libcrypto.so"
|
| -#endif
|
| -#endif
|
| -#define DIRSEP '/'
|
| -#define IS_DIRSEP_CHAR(c) ((c) == '/')
|
| -#ifndef O_BINARY
|
| -#define O_BINARY 0
|
| -#endif // O_BINARY
|
| -#define closesocket(a) close(a)
|
| -#define mg_fopen(x, y) fopen(x, y)
|
| -#define mg_mkdir(x, y) mkdir(x, y)
|
| -#define mg_remove(x) remove(x)
|
| -#define mg_rename(x, y) rename(x, y)
|
| -#define ERRNO errno
|
| -#define INVALID_SOCKET (-1)
|
| -#define INT64_FMT PRId64
|
| -typedef int SOCKET;
|
| -#define WINCDECL
|
| -
|
| -#endif // End of Windows and UNIX specific includes
|
| -
|
| -#include "mongoose.h"
|
| -
|
| -#define MONGOOSE_VERSION "3.1"
|
| -#define PASSWORDS_FILE_NAME ".htpasswd"
|
| -#define CGI_ENVIRONMENT_SIZE 4096
|
| -#define MAX_CGI_ENVIR_VARS 64
|
| -#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
|
| -
|
| -#ifdef _WIN32
|
| -static pthread_t pthread_self(void) {
|
| - return GetCurrentThreadId();
|
| -}
|
| -#endif // _WIN32
|
| -
|
| -#if defined(DEBUG)
|
| -#define DEBUG_TRACE(x) do { \
|
| - flockfile(stdout); \
|
| - printf("*** %lu.%p.%s.%d: ", \
|
| - (unsigned long) time(NULL), (void *) pthread_self(), \
|
| - __func__, __LINE__); \
|
| - printf x; \
|
| - putchar('\n'); \
|
| - fflush(stdout); \
|
| - funlockfile(stdout); \
|
| -} while (0)
|
| -#else
|
| -#define DEBUG_TRACE(x)
|
| -#endif // DEBUG
|
| -
|
| -// Darwin prior to 7.0 and Win32 do not have socklen_t
|
| -#ifdef NO_SOCKLEN_T
|
| -typedef int socklen_t;
|
| -#endif // NO_SOCKLEN_T
|
| -
|
| -typedef void * (*mg_thread_func_t)(void *);
|
| -
|
| -static const char *http_500_error = "Internal Server Error";
|
| -
|
| -// Snatched from OpenSSL includes. I put the prototypes here to be independent
|
| -// from the OpenSSL source installation. Having this, mongoose + SSL can be
|
| -// built on any system with binary SSL libraries installed.
|
| -typedef struct ssl_st SSL;
|
| -typedef struct ssl_method_st SSL_METHOD;
|
| -typedef struct ssl_ctx_st SSL_CTX;
|
| -
|
| -#define SSL_ERROR_WANT_READ 2
|
| -#define SSL_ERROR_WANT_WRITE 3
|
| -#define SSL_FILETYPE_PEM 1
|
| -#define CRYPTO_LOCK 1
|
| -
|
| -#if defined(NO_SSL_DL)
|
| -extern void SSL_free(SSL *);
|
| -extern int SSL_accept(SSL *);
|
| -extern int SSL_connect(SSL *);
|
| -extern int SSL_read(SSL *, void *, int);
|
| -extern int SSL_write(SSL *, const void *, int);
|
| -extern int SSL_get_error(const SSL *, int);
|
| -extern int SSL_set_fd(SSL *, int);
|
| -extern SSL *SSL_new(SSL_CTX *);
|
| -extern SSL_CTX *SSL_CTX_new(SSL_METHOD *);
|
| -extern SSL_METHOD *SSLv23_server_method(void);
|
| -extern int SSL_library_init(void);
|
| -extern void SSL_load_error_strings(void);
|
| -extern int SSL_CTX_use_PrivateKey_file(SSL_CTX *, const char *, int);
|
| -extern int SSL_CTX_use_certificate_file(SSL_CTX *, const char *, int);
|
| -extern int SSL_CTX_use_certificate_chain_file(SSL_CTX *, const char *);
|
| -extern void SSL_CTX_set_default_passwd_cb(SSL_CTX *, mg_callback_t);
|
| -extern void SSL_CTX_free(SSL_CTX *);
|
| -extern unsigned long ERR_get_error(void);
|
| -extern char *ERR_error_string(unsigned long, char *);
|
| -extern int CRYPTO_num_locks(void);
|
| -extern void CRYPTO_set_locking_callback(void (*)(int, int, const char *, int));
|
| -extern void CRYPTO_set_id_callback(unsigned long (*)(void));
|
| -#else
|
| -// Dynamically loaded SSL functionality
|
| -struct ssl_func {
|
| - const char *name; // SSL function name
|
| - void (*ptr)(void); // Function pointer
|
| -};
|
| -
|
| -#define SSL_free (* (void (*)(SSL *)) ssl_sw[0].ptr)
|
| -#define SSL_accept (* (int (*)(SSL *)) ssl_sw[1].ptr)
|
| -#define SSL_connect (* (int (*)(SSL *)) ssl_sw[2].ptr)
|
| -#define SSL_read (* (int (*)(SSL *, void *, int)) ssl_sw[3].ptr)
|
| -#define SSL_write (* (int (*)(SSL *, const void *,int)) ssl_sw[4].ptr)
|
| -#define SSL_get_error (* (int (*)(SSL *, int)) ssl_sw[5].ptr)
|
| -#define SSL_set_fd (* (int (*)(SSL *, SOCKET)) ssl_sw[6].ptr)
|
| -#define SSL_new (* (SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)
|
| -#define SSL_CTX_new (* (SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)
|
| -#define SSLv23_server_method (* (SSL_METHOD * (*)(void)) ssl_sw[9].ptr)
|
| -#define SSL_library_init (* (int (*)(void)) ssl_sw[10].ptr)
|
| -#define SSL_CTX_use_PrivateKey_file (* (int (*)(SSL_CTX *, \
|
| - const char *, int)) ssl_sw[11].ptr)
|
| -#define SSL_CTX_use_certificate_file (* (int (*)(SSL_CTX *, \
|
| - const char *, int)) ssl_sw[12].ptr)
|
| -#define SSL_CTX_set_default_passwd_cb \
|
| - (* (void (*)(SSL_CTX *, mg_callback_t)) ssl_sw[13].ptr)
|
| -#define SSL_CTX_free (* (void (*)(SSL_CTX *)) ssl_sw[14].ptr)
|
| -#define SSL_load_error_strings (* (void (*)(void)) ssl_sw[15].ptr)
|
| -#define SSL_CTX_use_certificate_chain_file \
|
| - (* (int (*)(SSL_CTX *, const char *)) ssl_sw[16].ptr)
|
| -
|
| -#define CRYPTO_num_locks (* (int (*)(void)) crypto_sw[0].ptr)
|
| -#define CRYPTO_set_locking_callback \
|
| - (* (void (*)(void (*)(int, int, const char *, int))) crypto_sw[1].ptr)
|
| -#define CRYPTO_set_id_callback \
|
| - (* (void (*)(unsigned long (*)(void))) crypto_sw[2].ptr)
|
| -#define ERR_get_error (* (unsigned long (*)(void)) crypto_sw[3].ptr)
|
| -#define ERR_error_string (* (char * (*)(unsigned long,char *)) crypto_sw[4].ptr)
|
| -
|
| -// set_ssl_option() function updates this array.
|
| -// It loads SSL library dynamically and changes NULLs to the actual addresses
|
| -// of respective functions. The macros above (like SSL_connect()) are really
|
| -// just calling these functions indirectly via the pointer.
|
| -static struct ssl_func ssl_sw[] = {
|
| - {"SSL_free", NULL},
|
| - {"SSL_accept", NULL},
|
| - {"SSL_connect", NULL},
|
| - {"SSL_read", NULL},
|
| - {"SSL_write", NULL},
|
| - {"SSL_get_error", NULL},
|
| - {"SSL_set_fd", NULL},
|
| - {"SSL_new", NULL},
|
| - {"SSL_CTX_new", NULL},
|
| - {"SSLv23_server_method", NULL},
|
| - {"SSL_library_init", NULL},
|
| - {"SSL_CTX_use_PrivateKey_file", NULL},
|
| - {"SSL_CTX_use_certificate_file",NULL},
|
| - {"SSL_CTX_set_default_passwd_cb",NULL},
|
| - {"SSL_CTX_free", NULL},
|
| - {"SSL_load_error_strings", NULL},
|
| - {"SSL_CTX_use_certificate_chain_file", NULL},
|
| - {NULL, NULL}
|
| -};
|
| -
|
| -// Similar array as ssl_sw. These functions could be located in different lib.
|
| -static struct ssl_func crypto_sw[] = {
|
| - {"CRYPTO_num_locks", NULL},
|
| - {"CRYPTO_set_locking_callback", NULL},
|
| - {"CRYPTO_set_id_callback", NULL},
|
| - {"ERR_get_error", NULL},
|
| - {"ERR_error_string", NULL},
|
| - {NULL, NULL}
|
| -};
|
| -#endif // NO_SSL_DL
|
| -
|
| -static const char *month_names[] = {
|
| - "Jan", "Feb", "Mar", "Apr", "May", "Jun",
|
| - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
|
| -};
|
| -
|
| -// Unified socket address. For IPv6 support, add IPv6 address structure
|
| -// in the union u.
|
| -struct usa {
|
| - socklen_t len;
|
| - union {
|
| - struct sockaddr sa;
|
| - struct sockaddr_in sin;
|
| - } u;
|
| -};
|
| -
|
| -// Describes a string (chunk of memory).
|
| -struct vec {
|
| - const char *ptr;
|
| - size_t len;
|
| -};
|
| -
|
| -// Structure used by mg_stat() function. Uses 64 bit file length.
|
| -struct mgstat {
|
| - int is_directory; // Directory marker
|
| - int64_t size; // File size
|
| - time_t mtime; // Modification time
|
| -};
|
| -
|
| -// Describes listening socket, or socket which was accept()-ed by the master
|
| -// thread and queued for future handling by the worker thread.
|
| -struct socket {
|
| - struct socket *next; // Linkage
|
| - SOCKET sock; // Listening socket
|
| - struct usa lsa; // Local socket address
|
| - struct usa rsa; // Remote socket address
|
| - int is_ssl; // Is socket SSL-ed
|
| - int is_proxy;
|
| -};
|
| -
|
| -enum {
|
| - CGI_EXTENSIONS, CGI_ENVIRONMENT, PUT_DELETE_PASSWORDS_FILE, CGI_INTERPRETER,
|
| - PROTECT_URI, AUTHENTICATION_DOMAIN, SSI_EXTENSIONS, ACCESS_LOG_FILE,
|
| - SSL_CHAIN_FILE, ENABLE_DIRECTORY_LISTING, ERROR_LOG_FILE,
|
| - GLOBAL_PASSWORDS_FILE, INDEX_FILES,
|
| - ENABLE_KEEP_ALIVE, ACCESS_CONTROL_LIST, MAX_REQUEST_SIZE,
|
| - EXTRA_MIME_TYPES, LISTENING_PORTS,
|
| - DOCUMENT_ROOT, SSL_CERTIFICATE, NUM_THREADS, RUN_AS_USER,
|
| - NUM_OPTIONS
|
| -};
|
| -
|
| -static const char *config_options[] = {
|
| - "C", "cgi_extensions", ".cgi,.pl,.php",
|
| - "E", "cgi_environment", NULL,
|
| - "G", "put_delete_passwords_file", NULL,
|
| - "I", "cgi_interpreter", NULL,
|
| - "P", "protect_uri", NULL,
|
| - "R", "authentication_domain", "mydomain.com",
|
| - "S", "ssi_extensions", ".shtml,.shtm",
|
| - "a", "access_log_file", NULL,
|
| - "c", "ssl_chain_file", NULL,
|
| - "d", "enable_directory_listing", "yes",
|
| - "e", "error_log_file", NULL,
|
| - "g", "global_passwords_file", NULL,
|
| - "i", "index_files", "index.html,index.htm,index.cgi",
|
| - "k", "enable_keep_alive", "no",
|
| - "l", "access_control_list", NULL,
|
| - "M", "max_request_size", "16384",
|
| - "m", "extra_mime_types", NULL,
|
| - "p", "listening_ports", "8080",
|
| - "r", "document_root", ".",
|
| - "s", "ssl_certificate", NULL,
|
| - "t", "num_threads", "10",
|
| - "u", "run_as_user", NULL,
|
| - NULL
|
| -};
|
| -#define ENTRIES_PER_CONFIG_OPTION 3
|
| -
|
| -struct mg_context {
|
| - volatile int stop_flag; // Should we stop event loop
|
| - SSL_CTX *ssl_ctx; // SSL context
|
| - char *config[NUM_OPTIONS]; // Mongoose configuration parameters
|
| - mg_callback_t user_callback; // User-defined callback function
|
| - void *user_data; // User-defined data
|
| -
|
| - struct socket *listening_sockets;
|
| -
|
| - volatile int num_threads; // Number of threads
|
| - pthread_mutex_t mutex; // Protects (max|num)_threads
|
| - pthread_cond_t cond; // Condvar for tracking workers terminations
|
| -
|
| - struct socket queue[20]; // Accepted sockets
|
| - volatile int sq_head; // Head of the socket queue
|
| - volatile int sq_tail; // Tail of the socket queue
|
| - pthread_cond_t sq_full; // Singaled when socket is produced
|
| - pthread_cond_t sq_empty; // Signaled when socket is consumed
|
| -};
|
| -
|
| -struct mg_connection {
|
| - struct mg_connection *peer; // Remote target in proxy mode
|
| - struct mg_request_info request_info;
|
| - struct mg_context *ctx;
|
| - SSL *ssl; // SSL descriptor
|
| - struct socket client; // Connected client
|
| - time_t birth_time; // Time connection was accepted
|
| - int64_t num_bytes_sent; // Total bytes sent to client
|
| - int64_t content_len; // Content-Length header value
|
| - int64_t consumed_content; // How many bytes of content is already read
|
| - char *buf; // Buffer for received data
|
| - int buf_size; // Buffer size
|
| - int request_len; // Size of the request + headers in a buffer
|
| - int data_len; // Total size of data in a buffer
|
| -};
|
| -
|
| -const char **mg_get_valid_option_names(void) {
|
| - return config_options;
|
| -}
|
| -
|
| -static void *call_user(struct mg_connection *conn, enum mg_event event) {
|
| - conn->request_info.user_data = conn->ctx->user_data;
|
| - return conn->ctx->user_callback == NULL ? NULL :
|
| - conn->ctx->user_callback(event, conn, &conn->request_info);
|
| -}
|
| -
|
| -static int get_option_index(const char *name) {
|
| - int i;
|
| -
|
| - for (i = 0; config_options[i] != NULL; i += ENTRIES_PER_CONFIG_OPTION) {
|
| - if (strcmp(config_options[i], name) == 0 ||
|
| - strcmp(config_options[i + 1], name) == 0) {
|
| - return i / ENTRIES_PER_CONFIG_OPTION;
|
| - }
|
| - }
|
| - return -1;
|
| -}
|
| -
|
| -const char *mg_get_option(const struct mg_context *ctx, const char *name) {
|
| - int i;
|
| - if ((i = get_option_index(name)) == -1) {
|
| - return NULL;
|
| - } else if (ctx->config[i] == NULL) {
|
| - return "";
|
| - } else {
|
| - return ctx->config[i];
|
| - }
|
| -}
|
| -
|
| -// Print error message to the opened error log stream.
|
| -static void cry(struct mg_connection *conn, const char *fmt, ...) {
|
| - char buf[BUFSIZ];
|
| - va_list ap;
|
| - FILE *fp;
|
| - time_t timestamp;
|
| -
|
| - va_start(ap, fmt);
|
| - (void) vsnprintf(buf, sizeof(buf), fmt, ap);
|
| - va_end(ap);
|
| -
|
| - // Do not lock when getting the callback value, here and below.
|
| - // I suppose this is fine, since function cannot disappear in the
|
| - // same way string option can.
|
| - conn->request_info.log_message = buf;
|
| - if (call_user(conn, MG_EVENT_LOG) == NULL) {
|
| - fp = conn->ctx->config[ERROR_LOG_FILE] == NULL ? NULL :
|
| - mg_fopen(conn->ctx->config[ERROR_LOG_FILE], "a+");
|
| -
|
| - if (fp != NULL) {
|
| - flockfile(fp);
|
| - timestamp = time(NULL);
|
| -
|
| - (void) fprintf(fp,
|
| - "[%010lu] [error] [client %s] ",
|
| - (unsigned long) timestamp,
|
| - inet_ntoa(conn->client.rsa.u.sin.sin_addr));
|
| -
|
| - if (conn->request_info.request_method != NULL) {
|
| - (void) fprintf(fp, "%s %s: ",
|
| - conn->request_info.request_method,
|
| - conn->request_info.uri);
|
| - }
|
| -
|
| - (void) fprintf(fp, "%s", buf);
|
| - fputc('\n', fp);
|
| - funlockfile(fp);
|
| - if (fp != stderr) {
|
| - fclose(fp);
|
| - }
|
| - }
|
| - }
|
| - conn->request_info.log_message = NULL;
|
| -}
|
| -
|
| -// Return OpenSSL error message
|
| -static const char *ssl_error(void) {
|
| - unsigned long err;
|
| - err = ERR_get_error();
|
| - return err == 0 ? "" : ERR_error_string(err, NULL);
|
| -}
|
| -
|
| -// Return fake connection structure. Used for logging, if connection
|
| -// is not applicable at the moment of logging.
|
| -static struct mg_connection *fc(struct mg_context *ctx) {
|
| - static struct mg_connection fake_connection;
|
| - fake_connection.ctx = ctx;
|
| - return &fake_connection;
|
| -}
|
| -
|
| -const char *mg_version(void) {
|
| - return MONGOOSE_VERSION;
|
| -}
|
| -
|
| -static void mg_strlcpy(register char *dst, register const char *src, size_t n) {
|
| - for (; *src != '\0' && n > 1; n--) {
|
| - *dst++ = *src++;
|
| - }
|
| - *dst = '\0';
|
| -}
|
| -
|
| -static int lowercase(const char *s) {
|
| - return tolower(* (const unsigned char *) s);
|
| -}
|
| -
|
| -static int mg_strncasecmp(const char *s1, const char *s2, size_t len) {
|
| - int diff = 0;
|
| -
|
| - if (len > 0)
|
| - do {
|
| - diff = lowercase(s1++) - lowercase(s2++);
|
| - } while (diff == 0 && s1[-1] != '\0' && --len > 0);
|
| -
|
| - return diff;
|
| -}
|
| -
|
| -static int mg_strcasecmp(const char *s1, const char *s2) {
|
| - int diff;
|
| -
|
| - do {
|
| - diff = lowercase(s1++) - lowercase(s2++);
|
| - } while (diff == 0 && s1[-1] != '\0');
|
| -
|
| - return diff;
|
| -}
|
| -
|
| -static char * mg_strndup(const char *ptr, size_t len) {
|
| - char *p;
|
| -
|
| - if ((p = (char *) malloc(len + 1)) != NULL) {
|
| - mg_strlcpy(p, ptr, len + 1);
|
| - }
|
| -
|
| - return p;
|
| -}
|
| -
|
| -static char * mg_strdup(const char *str) {
|
| - return mg_strndup(str, strlen(str));
|
| -}
|
| -
|
| -// Like snprintf(), but never returns negative value, or the value
|
| -// that is larger than a supplied buffer.
|
| -// Thanks to Adam Zeldis to pointing snprintf()-caused vulnerability
|
| -// in his audit report.
|
| -static int mg_vsnprintf(struct mg_connection *conn, char *buf, size_t buflen,
|
| - const char *fmt, va_list ap) {
|
| - int n;
|
| -
|
| - if (buflen == 0)
|
| - return 0;
|
| -
|
| - n = vsnprintf(buf, buflen, fmt, ap);
|
| -
|
| - if (n < 0) {
|
| - cry(conn, "vsnprintf error");
|
| - n = 0;
|
| - } else if (n >= (int) buflen) {
|
| - cry(conn, "truncating vsnprintf buffer: [%.*s]",
|
| - n > 200 ? 200 : n, buf);
|
| - n = (int) buflen - 1;
|
| - }
|
| - buf[n] = '\0';
|
| -
|
| - return n;
|
| -}
|
| -
|
| -static int mg_snprintf(struct mg_connection *conn, char *buf, size_t buflen,
|
| - const char *fmt, ...) {
|
| - va_list ap;
|
| - int n;
|
| -
|
| - va_start(ap, fmt);
|
| - n = mg_vsnprintf(conn, buf, buflen, fmt, ap);
|
| - va_end(ap);
|
| -
|
| - return n;
|
| -}
|
| -
|
| -// Skip the characters until one of the delimiters characters found.
|
| -// 0-terminate resulting word. Skip the delimiter and following whitespaces if any.
|
| -// Advance pointer to buffer to the next word. Return found 0-terminated word.
|
| -// Delimiters can be quoted with quotechar.
|
| -static char *skip_quoted(char **buf, const char *delimiters, const char *whitespace, char quotechar) {
|
| - char *p, *begin_word, *end_word, *end_whitespace;
|
| -
|
| - begin_word = *buf;
|
| - end_word = begin_word + strcspn(begin_word, delimiters);
|
| -
|
| - // Check for quotechar
|
| - if (end_word > begin_word) {
|
| - p = end_word - 1;
|
| - while (*p == quotechar) {
|
| - // If there is anything beyond end_word, copy it
|
| - if (*end_word == '\0') {
|
| - *p = '\0';
|
| - break;
|
| - } else {
|
| - size_t end_off = strcspn(end_word + 1, delimiters);
|
| - memmove (p, end_word, end_off + 1);
|
| - p += end_off; // p must correspond to end_word - 1
|
| - end_word += end_off + 1;
|
| - }
|
| - }
|
| - for (p++; p < end_word; p++) {
|
| - *p = '\0';
|
| - }
|
| - }
|
| -
|
| - if (*end_word == '\0') {
|
| - *buf = end_word;
|
| - } else {
|
| - end_whitespace = end_word + 1 + strspn(end_word + 1, whitespace);
|
| -
|
| - for (p = end_word; p < end_whitespace; p++) {
|
| - *p = '\0';
|
| - }
|
| -
|
| - *buf = end_whitespace;
|
| - }
|
| -
|
| - return begin_word;
|
| -}
|
| -
|
| -// Simplified version of skip_quoted without quote char
|
| -// and whitespace == delimiters
|
| -static char *skip(char **buf, const char *delimiters) {
|
| - return skip_quoted(buf, delimiters, delimiters, 0);
|
| -}
|
| -
|
| -
|
| -// Return HTTP header value, or NULL if not found.
|
| -static const char *get_header(const struct mg_request_info *ri,
|
| - const char *name) {
|
| - int i;
|
| -
|
| - for (i = 0; i < ri->num_headers; i++)
|
| - if (!mg_strcasecmp(name, ri->http_headers[i].name))
|
| - return ri->http_headers[i].value;
|
| -
|
| - return NULL;
|
| -}
|
| -
|
| -const char *mg_get_header(const struct mg_connection *conn, const char *name) {
|
| - return get_header(&conn->request_info, name);
|
| -}
|
| -
|
| -// A helper function for traversing comma separated list of values.
|
| -// It returns a list pointer shifted to the next value, of NULL if the end
|
| -// of the list found.
|
| -// Value is stored in val vector. If value has form "x=y", then eq_val
|
| -// vector is initialized to point to the "y" part, and val vector length
|
| -// is adjusted to point only to "x".
|
| -static const char *next_option(const char *list, struct vec *val,
|
| - struct vec *eq_val) {
|
| - if (list == NULL || *list == '\0') {
|
| - // End of the list
|
| - list = NULL;
|
| - } else {
|
| - val->ptr = list;
|
| - if ((list = strchr(val->ptr, ',')) != NULL) {
|
| - // Comma found. Store length and shift the list ptr
|
| - val->len = list - val->ptr;
|
| - list++;
|
| - } else {
|
| - // This value is the last one
|
| - list = val->ptr + strlen(val->ptr);
|
| - val->len = list - val->ptr;
|
| - }
|
| -
|
| - if (eq_val != NULL) {
|
| - // Value has form "x=y", adjust pointers and lengths
|
| - // so that val points to "x", and eq_val points to "y".
|
| - eq_val->len = 0;
|
| - eq_val->ptr = (const char *) memchr(val->ptr, '=', val->len);
|
| - if (eq_val->ptr != NULL) {
|
| - eq_val->ptr++; // Skip over '=' character
|
| - eq_val->len = val->ptr + val->len - eq_val->ptr;
|
| - val->len = (eq_val->ptr - val->ptr) - 1;
|
| - }
|
| - }
|
| - }
|
| -
|
| - return list;
|
| -}
|
| -
|
| -static int match_extension(const char *path, const char *ext_list) {
|
| - struct vec ext_vec;
|
| - size_t path_len;
|
| -
|
| - path_len = strlen(path);
|
| -
|
| - while ((ext_list = next_option(ext_list, &ext_vec, NULL)) != NULL)
|
| - if (ext_vec.len < path_len &&
|
| - mg_strncasecmp(path + path_len - ext_vec.len,
|
| - ext_vec.ptr, ext_vec.len) == 0)
|
| - return 1;
|
| -
|
| - return 0;
|
| -}
|
| -
|
| -// HTTP 1.1 assumes keep alive if "Connection:" header is not set
|
| -// This function must tolerate situations when connection info is not
|
| -// set up, for example if request parsing failed.
|
| -static int should_keep_alive(const struct mg_connection *conn) {
|
| - const char *http_version = conn->request_info.http_version;
|
| - const char *header = mg_get_header(conn, "Connection");
|
| - return (header == NULL && http_version && !strcmp(http_version, "1.1")) ||
|
| - (header != NULL && !mg_strcasecmp(header, "keep-alive"));
|
| -}
|
| -
|
| -static const char *suggest_connection_header(const struct mg_connection *conn) {
|
| - return should_keep_alive(conn) ? "keep-alive" : "close";
|
| -}
|
| -
|
| -static void send_http_error(struct mg_connection *conn, int status,
|
| - const char *reason, const char *fmt, ...) {
|
| - char buf[BUFSIZ];
|
| - va_list ap;
|
| - int len;
|
| -
|
| - conn->request_info.status_code = status;
|
| -
|
| - if (call_user(conn, MG_HTTP_ERROR) == NULL) {
|
| - buf[0] = '\0';
|
| - len = 0;
|
| -
|
| - // Errors 1xx, 204 and 304 MUST NOT send a body
|
| - if (status > 199 && status != 204 && status != 304) {
|
| - len = mg_snprintf(conn, buf, sizeof(buf), "Error %d: %s", status, reason);
|
| - cry(conn, "%s", buf);
|
| - buf[len++] = '\n';
|
| -
|
| - va_start(ap, fmt);
|
| - len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len, fmt, ap);
|
| - va_end(ap);
|
| - }
|
| - DEBUG_TRACE(("[%s]", buf));
|
| -
|
| - mg_printf(conn, "HTTP/1.1 %d %s\r\n"
|
| - "Content-Type: text/plain\r\n"
|
| - "Content-Length: %d\r\n"
|
| - "Connection: %s\r\n\r\n", status, reason, len,
|
| - suggest_connection_header(conn));
|
| - conn->num_bytes_sent += mg_printf(conn, "%s", buf);
|
| - }
|
| -}
|
| -
|
| -#if defined(_WIN32) && !defined(__SYMBIAN32__)
|
| -static int pthread_mutex_init(pthread_mutex_t *mutex, void *unused) {
|
| - unused = NULL;
|
| - *mutex = CreateMutex(NULL, FALSE, NULL);
|
| - return *mutex == NULL ? -1 : 0;
|
| -}
|
| -
|
| -static int pthread_mutex_destroy(pthread_mutex_t *mutex) {
|
| - return CloseHandle(*mutex) == 0 ? -1 : 0;
|
| -}
|
| -
|
| -static int pthread_mutex_lock(pthread_mutex_t *mutex) {
|
| - return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
|
| -}
|
| -
|
| -static int pthread_mutex_unlock(pthread_mutex_t *mutex) {
|
| - return ReleaseMutex(*mutex) == 0 ? -1 : 0;
|
| -}
|
| -
|
| -static int pthread_cond_init(pthread_cond_t *cv, const void *unused) {
|
| - unused = NULL;
|
| - cv->signal = CreateEvent(NULL, FALSE, FALSE, NULL);
|
| - cv->broadcast = CreateEvent(NULL, TRUE, FALSE, NULL);
|
| - return cv->signal != NULL && cv->broadcast != NULL ? 0 : -1;
|
| -}
|
| -
|
| -static int pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex) {
|
| - HANDLE handles[2];
|
| - handles[0] = cv->signal;
|
| - handles[1] = cv->broadcast;
|
| - ReleaseMutex(*mutex);
|
| - WaitForMultipleObjects(2, handles, FALSE, INFINITE);
|
| - return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
|
| -}
|
| -
|
| -static int pthread_cond_signal(pthread_cond_t *cv) {
|
| - return SetEvent(cv->signal) == 0 ? -1 : 0;
|
| -}
|
| -
|
| -static int pthread_cond_broadcast(pthread_cond_t *cv) {
|
| - // Implementation with PulseEvent() has race condition, see
|
| - // http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
|
| - return PulseEvent(cv->broadcast) == 0 ? -1 : 0;
|
| -}
|
| -
|
| -static int pthread_cond_destroy(pthread_cond_t *cv) {
|
| - return CloseHandle(cv->signal) && CloseHandle(cv->broadcast) ? 0 : -1;
|
| -}
|
| -
|
| -// For Windows, change all slashes to backslashes in path names.
|
| -static void change_slashes_to_backslashes(char *path) {
|
| - int i;
|
| -
|
| - for (i = 0; path[i] != '\0'; i++) {
|
| - if (path[i] == '/')
|
| - path[i] = '\\';
|
| - // i > 0 check is to preserve UNC paths, like \\server\file.txt
|
| - if (path[i] == '\\' && i > 0)
|
| - while (path[i + 1] == '\\' || path[i + 1] == '/')
|
| - (void) memmove(path + i + 1,
|
| - path + i + 2, strlen(path + i + 1));
|
| - }
|
| -}
|
| -
|
| -// Encode 'path' which is assumed UTF-8 string, into UNICODE string.
|
| -// wbuf and wbuf_len is a target buffer and its length.
|
| -static void to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len) {
|
| - char buf[PATH_MAX], buf2[PATH_MAX], *p;
|
| -
|
| - mg_strlcpy(buf, path, sizeof(buf));
|
| - change_slashes_to_backslashes(buf);
|
| -
|
| - // Point p to the end of the file name
|
| - p = buf + strlen(buf) - 1;
|
| -
|
| - // Trim trailing backslash character
|
| - while (p > buf && *p == '\\' && p[-1] != ':') {
|
| - *p-- = '\0';
|
| - }
|
| -
|
| - // Protect from CGI code disclosure.
|
| - // This is very nasty hole. Windows happily opens files with
|
| - // some garbage in the end of file name. So fopen("a.cgi ", "r")
|
| - // actually opens "a.cgi", and does not return an error!
|
| - if (*p == 0x20 || // No space at the end
|
| - (*p == 0x2e && p > buf) || // No '.' but allow '.' as full path
|
| - *p == 0x2b || // No '+'
|
| - (*p & ~0x7f)) { // And generally no non-ascii chars
|
| - (void) fprintf(stderr, "Rejecting suspicious path: [%s]", buf);
|
| - wbuf[0] = L'\0';
|
| - } else {
|
| - // Convert to Unicode and back. If doubly-converted string does not
|
| - // match the original, something is fishy, reject.
|
| - MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
|
| - WideCharToMultiByte(CP_UTF8, 0, wbuf, (int) wbuf_len, buf2, sizeof(buf2),
|
| - NULL, NULL);
|
| - if (strcmp(buf, buf2) != 0) {
|
| - wbuf[0] = L'\0';
|
| - }
|
| - }
|
| -}
|
| -
|
| -#if defined(_WIN32_WCE)
|
| -static time_t time(time_t *ptime) {
|
| - time_t t;
|
| - SYSTEMTIME st;
|
| - FILETIME ft;
|
| -
|
| - GetSystemTime(&st);
|
| - SystemTimeToFileTime(&st, &ft);
|
| - t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
|
| -
|
| - if (ptime != NULL) {
|
| - *ptime = t;
|
| - }
|
| -
|
| - return t;
|
| -}
|
| -
|
| -static struct tm *localtime(const time_t *ptime, struct tm *ptm) {
|
| - int64_t t = ((int64_t) *ptime) * RATE_DIFF + EPOCH_DIFF;
|
| - FILETIME ft, lft;
|
| - SYSTEMTIME st;
|
| - TIME_ZONE_INFORMATION tzinfo;
|
| -
|
| - if (ptm == NULL) {
|
| - return NULL;
|
| - }
|
| -
|
| - * (int64_t *) &ft = t;
|
| - FileTimeToLocalFileTime(&ft, &lft);
|
| - FileTimeToSystemTime(&lft, &st);
|
| - ptm->tm_year = st.wYear - 1900;
|
| - ptm->tm_mon = st.wMonth - 1;
|
| - ptm->tm_wday = st.wDayOfWeek;
|
| - ptm->tm_mday = st.wDay;
|
| - ptm->tm_hour = st.wHour;
|
| - ptm->tm_min = st.wMinute;
|
| - ptm->tm_sec = st.wSecond;
|
| - ptm->tm_yday = 0; // hope nobody uses this
|
| - ptm->tm_isdst =
|
| - GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_DAYLIGHT ? 1 : 0;
|
| -
|
| - return ptm;
|
| -}
|
| -
|
| -static struct tm *gmtime(const time_t *ptime, struct tm *ptm) {
|
| - // FIXME(lsm): fix this.
|
| - return localtime(ptime, ptm);
|
| -}
|
| -
|
| -static size_t strftime(char *dst, size_t dst_size, const char *fmt,
|
| - const struct tm *tm) {
|
| - (void) snprintf(dst, dst_size, "implement strftime() for WinCE");
|
| - return 0;
|
| -}
|
| -#endif
|
| -
|
| -static int mg_rename(const char* oldname, const char* newname) {
|
| - wchar_t woldbuf[PATH_MAX];
|
| - wchar_t wnewbuf[PATH_MAX];
|
| -
|
| - to_unicode(oldname, woldbuf, ARRAY_SIZE(woldbuf));
|
| - to_unicode(newname, wnewbuf, ARRAY_SIZE(wnewbuf));
|
| -
|
| - return MoveFileW(woldbuf, wnewbuf) ? 0 : -1;
|
| -}
|
| -
|
| -
|
| -static FILE *mg_fopen(const char *path, const char *mode) {
|
| - wchar_t wbuf[PATH_MAX], wmode[20];
|
| -
|
| - to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
|
| - MultiByteToWideChar(CP_UTF8, 0, mode, -1, wmode, ARRAY_SIZE(wmode));
|
| -
|
| - return _wfopen(wbuf, wmode);
|
| -}
|
| -
|
| -static int mg_stat(const char *path, struct mgstat *stp) {
|
| - int ok = -1; // Error
|
| - wchar_t wbuf[PATH_MAX];
|
| - WIN32_FILE_ATTRIBUTE_DATA info;
|
| -
|
| - to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
|
| -
|
| - if (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0) {
|
| - stp->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
|
| - stp->mtime = SYS2UNIX_TIME(info.ftLastWriteTime.dwLowDateTime,
|
| - info.ftLastWriteTime.dwHighDateTime);
|
| - stp->is_directory =
|
| - info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
|
| - ok = 0; // Success
|
| - }
|
| -
|
| - return ok;
|
| -}
|
| -
|
| -static int mg_remove(const char *path) {
|
| - wchar_t wbuf[PATH_MAX];
|
| - to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
|
| - return DeleteFileW(wbuf) ? 0 : -1;
|
| -}
|
| -
|
| -static int mg_mkdir(const char *path, int mode) {
|
| - char buf[PATH_MAX];
|
| - wchar_t wbuf[PATH_MAX];
|
| -
|
| - mode = 0; // Unused
|
| - mg_strlcpy(buf, path, sizeof(buf));
|
| - change_slashes_to_backslashes(buf);
|
| -
|
| - (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, sizeof(wbuf));
|
| -
|
| - return CreateDirectoryW(wbuf, NULL) ? 0 : -1;
|
| -}
|
| -
|
| -// Implementation of POSIX opendir/closedir/readdir for Windows.
|
| -static DIR * opendir(const char *name) {
|
| - DIR *dir = NULL;
|
| - wchar_t wpath[PATH_MAX];
|
| - DWORD attrs;
|
| -
|
| - if (name == NULL) {
|
| - SetLastError(ERROR_BAD_ARGUMENTS);
|
| - } else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
|
| - SetLastError(ERROR_NOT_ENOUGH_MEMORY);
|
| - } else {
|
| - to_unicode(name, wpath, ARRAY_SIZE(wpath));
|
| - attrs = GetFileAttributesW(wpath);
|
| - if (attrs != 0xFFFFFFFF &&
|
| - ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
|
| - (void) wcscat(wpath, L"\\*");
|
| - dir->handle = FindFirstFileW(wpath, &dir->info);
|
| - dir->result.d_name[0] = '\0';
|
| - } else {
|
| - free(dir);
|
| - dir = NULL;
|
| - }
|
| - }
|
| -
|
| - return dir;
|
| -}
|
| -
|
| -static int closedir(DIR *dir) {
|
| - int result = 0;
|
| -
|
| - if (dir != NULL) {
|
| - if (dir->handle != INVALID_HANDLE_VALUE)
|
| - result = FindClose(dir->handle) ? 0 : -1;
|
| -
|
| - free(dir);
|
| - } else {
|
| - result = -1;
|
| - SetLastError(ERROR_BAD_ARGUMENTS);
|
| - }
|
| -
|
| - return result;
|
| -}
|
| -
|
| -struct dirent * readdir(DIR *dir) {
|
| - struct dirent *result = 0;
|
| -
|
| - if (dir) {
|
| - if (dir->handle != INVALID_HANDLE_VALUE) {
|
| - result = &dir->result;
|
| - (void) WideCharToMultiByte(CP_UTF8, 0,
|
| - dir->info.cFileName, -1, result->d_name,
|
| - sizeof(result->d_name), NULL, NULL);
|
| -
|
| - if (!FindNextFileW(dir->handle, &dir->info)) {
|
| - (void) FindClose(dir->handle);
|
| - dir->handle = INVALID_HANDLE_VALUE;
|
| - }
|
| -
|
| - } else {
|
| - SetLastError(ERROR_FILE_NOT_FOUND);
|
| - }
|
| - } else {
|
| - SetLastError(ERROR_BAD_ARGUMENTS);
|
| - }
|
| -
|
| - return result;
|
| -}
|
| -
|
| -#define set_close_on_exec(fd) // No FD_CLOEXEC on Windows
|
| -
|
| -static int start_thread(struct mg_context *ctx, mg_thread_func_t f, void *p) {
|
| - return _beginthread((void (__cdecl *)(void *)) f, 0, p) == -1L ? -1 : 0;
|
| -}
|
| -
|
| -static HANDLE dlopen(const char *dll_name, int flags) {
|
| - wchar_t wbuf[PATH_MAX];
|
| - flags = 0; // Unused
|
| - to_unicode(dll_name, wbuf, ARRAY_SIZE(wbuf));
|
| - return LoadLibraryW(wbuf);
|
| -}
|
| -
|
| -#if !defined(NO_CGI)
|
| -#define SIGKILL 0
|
| -static int kill(pid_t pid, int sig_num) {
|
| - (void) TerminateProcess(pid, sig_num);
|
| - (void) CloseHandle(pid);
|
| - return 0;
|
| -}
|
| -
|
| -static pid_t spawn_process(struct mg_connection *conn, const char *prog,
|
| - char *envblk, char *envp[], int fd_stdin,
|
| - int fd_stdout, const char *dir) {
|
| - HANDLE me;
|
| - char *p, *interp, cmdline[PATH_MAX], buf[PATH_MAX];
|
| - FILE *fp;
|
| - STARTUPINFOA si;
|
| - PROCESS_INFORMATION pi;
|
| -
|
| - envp = NULL; // Unused
|
| -
|
| - (void) memset(&si, 0, sizeof(si));
|
| - (void) memset(&pi, 0, sizeof(pi));
|
| -
|
| - // TODO(lsm): redirect CGI errors to the error log file
|
| - si.cb = sizeof(si);
|
| - si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
|
| - si.wShowWindow = SW_HIDE;
|
| -
|
| - me = GetCurrentProcess();
|
| - (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdin), me,
|
| - &si.hStdInput, 0, TRUE, DUPLICATE_SAME_ACCESS);
|
| - (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdout), me,
|
| - &si.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
|
| -
|
| - // If CGI file is a script, try to read the interpreter line
|
| - interp = conn->ctx->config[CGI_INTERPRETER];
|
| - if (interp == NULL) {
|
| - buf[2] = '\0';
|
| - mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%c%s", dir, DIRSEP, prog);
|
| - if ((fp = fopen(cmdline, "r")) != NULL) {
|
| - (void) fgets(buf, sizeof(buf), fp);
|
| - if (buf[0] != '#' || buf[1] != '!') {
|
| - // First line does not start with "#!". Do not set interpreter.
|
| - buf[2] = '\0';
|
| - } else {
|
| - // Trim whitespaces in interpreter name
|
| - for (p = &buf[strlen(buf) - 1]; p > buf && isspace(*p); p--) {
|
| - *p = '\0';
|
| - }
|
| - }
|
| - (void) fclose(fp);
|
| - }
|
| - interp = buf + 2;
|
| - }
|
| -
|
| - (void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%s%s%c%s",
|
| - interp, interp[0] == '\0' ? "" : " ", dir, DIRSEP, prog);
|
| -
|
| - DEBUG_TRACE(("Running [%s]", cmdline));
|
| - if (CreateProcessA(NULL, cmdline, NULL, NULL, TRUE,
|
| - CREATE_NEW_PROCESS_GROUP, envblk, dir, &si, &pi) == 0) {
|
| - cry(conn, "%s: CreateProcess(%s): %d",
|
| - __func__, cmdline, ERRNO);
|
| - pi.hProcess = (pid_t) -1;
|
| - } else {
|
| - (void) close(fd_stdin);
|
| - (void) close(fd_stdout);
|
| - }
|
| -
|
| - (void) CloseHandle(si.hStdOutput);
|
| - (void) CloseHandle(si.hStdInput);
|
| - (void) CloseHandle(pi.hThread);
|
| -
|
| - return (pid_t) pi.hProcess;
|
| -}
|
| -#endif // !NO_CGI
|
| -
|
| -static int set_non_blocking_mode(SOCKET sock) {
|
| - unsigned long on = 1;
|
| - return ioctlsocket(sock, FIONBIO, &on);
|
| -}
|
| -
|
| -#else
|
| -static int mg_stat(const char *path, struct mgstat *stp) {
|
| - struct stat st;
|
| - int ok;
|
| -
|
| - if (stat(path, &st) == 0) {
|
| - ok = 0;
|
| - stp->size = st.st_size;
|
| - stp->mtime = st.st_mtime;
|
| - stp->is_directory = S_ISDIR(st.st_mode);
|
| - } else {
|
| - ok = -1;
|
| - }
|
| -
|
| - return ok;
|
| -}
|
| -
|
| -static void set_close_on_exec(int fd) {
|
| - (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
|
| -}
|
| -
|
| -static int start_thread(struct mg_context *ctx, mg_thread_func_t func,
|
| - void *param) {
|
| - pthread_t thread_id;
|
| - pthread_attr_t attr;
|
| - int retval;
|
| -
|
| - (void) pthread_attr_init(&attr);
|
| - (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
| - // TODO(lsm): figure out why mongoose dies on Linux if next line is enabled
|
| - // (void) pthread_attr_setstacksize(&attr, sizeof(struct mg_connection) * 5);
|
| -
|
| - if ((retval = pthread_create(&thread_id, &attr, func, param)) != 0) {
|
| - cry(fc(ctx), "%s: %s", __func__, strerror(retval));
|
| - }
|
| -
|
| - return retval;
|
| -}
|
| -
|
| -#ifndef NO_CGI
|
| -static pid_t spawn_process(struct mg_connection *conn, const char *prog,
|
| - char *envblk, char *envp[], int fd_stdin,
|
| - int fd_stdout, const char *dir) {
|
| - pid_t pid;
|
| - const char *interp;
|
| -
|
| - envblk = NULL; // Unused
|
| -
|
| - if ((pid = fork()) == -1) {
|
| - // Parent
|
| - send_http_error(conn, 500, http_500_error, "fork(): %s", strerror(ERRNO));
|
| - } else if (pid == 0) {
|
| - // Child
|
| - if (chdir(dir) != 0) {
|
| - cry(conn, "%s: chdir(%s): %s", __func__, dir, strerror(ERRNO));
|
| - } else if (dup2(fd_stdin, 0) == -1) {
|
| - cry(conn, "%s: dup2(%d, 0): %s", __func__, fd_stdin, strerror(ERRNO));
|
| - } else if (dup2(fd_stdout, 1) == -1) {
|
| - cry(conn, "%s: dup2(%d, 1): %s", __func__, fd_stdout, strerror(ERRNO));
|
| - } else {
|
| - (void) dup2(fd_stdout, 2);
|
| - (void) close(fd_stdin);
|
| - (void) close(fd_stdout);
|
| -
|
| - // Execute CGI program. No need to lock: new process
|
| - interp = conn->ctx->config[CGI_INTERPRETER];
|
| - if (interp == NULL) {
|
| - (void) execle(prog, prog, NULL, envp);
|
| - cry(conn, "%s: execle(%s): %s", __func__, prog, strerror(ERRNO));
|
| - } else {
|
| - (void) execle(interp, interp, prog, NULL, envp);
|
| - cry(conn, "%s: execle(%s %s): %s", __func__, interp, prog,
|
| - strerror(ERRNO));
|
| - }
|
| - }
|
| - exit(EXIT_FAILURE);
|
| - } else {
|
| - // Parent. Close stdio descriptors
|
| - (void) close(fd_stdin);
|
| - (void) close(fd_stdout);
|
| - }
|
| -
|
| - return pid;
|
| -}
|
| -#endif // !NO_CGI
|
| -
|
| -static int set_non_blocking_mode(SOCKET sock) {
|
| - int flags;
|
| -
|
| - flags = fcntl(sock, F_GETFL, 0);
|
| - (void) fcntl(sock, F_SETFL, flags | O_NONBLOCK);
|
| -
|
| - return 0;
|
| -}
|
| -#endif // _WIN32
|
| -
|
| -// Write data to the IO channel - opened file descriptor, socket or SSL
|
| -// descriptor. Return number of bytes written.
|
| -static int64_t push(FILE *fp, SOCKET sock, SSL *ssl, const char *buf,
|
| - int64_t len) {
|
| - int64_t sent;
|
| - int n, k;
|
| -
|
| - sent = 0;
|
| - while (sent < len) {
|
| -
|
| - // How many bytes we send in this iteration
|
| - k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent);
|
| -
|
| - if (ssl != NULL) {
|
| - n = SSL_write(ssl, buf + sent, k);
|
| - } else if (fp != NULL) {
|
| - n = fwrite(buf + sent, 1, (size_t)k, fp);
|
| - if (ferror(fp))
|
| - n = -1;
|
| - } else {
|
| - n = send(sock, buf + sent, (size_t)k, 0);
|
| - }
|
| -
|
| - if (n < 0)
|
| - break;
|
| -
|
| - sent += n;
|
| - }
|
| -
|
| - return sent;
|
| -}
|
| -
|
| -// Read from IO channel - opened file descriptor, socket, or SSL descriptor.
|
| -// Return number of bytes read.
|
| -static int pull(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int len) {
|
| - int nread;
|
| -
|
| - if (ssl != NULL) {
|
| - nread = SSL_read(ssl, buf, len);
|
| - } else if (fp != NULL) {
|
| - // Use read() instead of fread(), because if we're reading from the CGI
|
| - // pipe, fread() may block until IO buffer is filled up. We cannot afford
|
| - // to block and must pass all read bytes immediately to the client.
|
| - nread = read(fileno(fp), buf, (size_t) len);
|
| - if (ferror(fp))
|
| - nread = -1;
|
| - } else {
|
| - nread = recv(sock, buf, (size_t) len, 0);
|
| - }
|
| -
|
| - return nread;
|
| -}
|
| -
|
| -int mg_read(struct mg_connection *conn, void *buf, size_t len) {
|
| - int n, buffered_len, nread;
|
| - const char *buffered;
|
| -
|
| - assert((conn->content_len == -1 && conn->consumed_content == 0) ||
|
| - conn->consumed_content <= conn->content_len);
|
| - DEBUG_TRACE(("%p %zu %lld %lld", buf, len,
|
| - conn->content_len, conn->consumed_content));
|
| - nread = 0;
|
| - if (conn->consumed_content < conn->content_len) {
|
| -
|
| - // Adjust number of bytes to read.
|
| - int64_t to_read = conn->content_len - conn->consumed_content;
|
| - if (to_read < (int64_t) len) {
|
| - len = (int) to_read;
|
| - }
|
| -
|
| - // How many bytes of data we have buffered in the request buffer?
|
| - buffered = conn->buf + conn->request_len + conn->consumed_content;
|
| - buffered_len = conn->data_len - conn->request_len;
|
| - assert(buffered_len >= 0);
|
| -
|
| - // Return buffered data back if we haven't done that yet.
|
| - if (conn->consumed_content < (int64_t) buffered_len) {
|
| - buffered_len -= (int) conn->consumed_content;
|
| - if (len < (size_t) buffered_len) {
|
| - buffered_len = len;
|
| - }
|
| - memcpy(buf, buffered, (size_t)buffered_len);
|
| - len -= buffered_len;
|
| - buf = (char *) buf + buffered_len;
|
| - conn->consumed_content += buffered_len;
|
| - nread = buffered_len;
|
| - }
|
| -
|
| - // We have returned all buffered data. Read new data from the remote socket.
|
| - while (len > 0) {
|
| - n = pull(NULL, conn->client.sock, conn->ssl, (char *) buf, (int) len);
|
| - if (n <= 0) {
|
| - break;
|
| - }
|
| - buf = (char *) buf + n;
|
| - conn->consumed_content += n;
|
| - nread += n;
|
| - len -= n;
|
| - }
|
| - }
|
| - return nread;
|
| -}
|
| -
|
| -int mg_write(struct mg_connection *conn, const void *buf, size_t len) {
|
| - return (int) push(NULL, conn->client.sock, conn->ssl,
|
| - (const char *) buf, (int64_t) len);
|
| -}
|
| -
|
| -int mg_printf(struct mg_connection *conn, const char *fmt, ...) {
|
| - char buf[BUFSIZ];
|
| - int len;
|
| - va_list ap;
|
| -
|
| - va_start(ap, fmt);
|
| - len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
|
| - va_end(ap);
|
| -
|
| - return mg_write(conn, buf, (size_t)len);
|
| -}
|
| -
|
| -// URL-decode input buffer into destination buffer.
|
| -// 0-terminate the destination buffer. Return the length of decoded data.
|
| -// form-url-encoded data differs from URI encoding in a way that it
|
| -// uses '+' as character for space, see RFC 1866 section 8.2.1
|
| -// http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
|
| -static size_t url_decode(const char *src, size_t src_len, char *dst,
|
| - size_t dst_len, int is_form_url_encoded) {
|
| - size_t i, j;
|
| - int a, b;
|
| -#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
|
| -
|
| - for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
|
| - if (src[i] == '%' &&
|
| - isxdigit(* (const unsigned char *) (src + i + 1)) &&
|
| - isxdigit(* (const unsigned char *) (src + i + 2))) {
|
| - a = tolower(* (const unsigned char *) (src + i + 1));
|
| - b = tolower(* (const unsigned char *) (src + i + 2));
|
| - dst[j] = (char) ((HEXTOI(a) << 4) | HEXTOI(b));
|
| - i += 2;
|
| - } else if (is_form_url_encoded && src[i] == '+') {
|
| - dst[j] = ' ';
|
| - } else {
|
| - dst[j] = src[i];
|
| - }
|
| - }
|
| -
|
| - dst[j] = '\0'; // Null-terminate the destination
|
| -
|
| - return j;
|
| -}
|
| -
|
| -// Scan given buffer and fetch the value of the given variable.
|
| -// It can be specified in query string, or in the POST data.
|
| -// Return NULL if the variable not found, or allocated 0-terminated value.
|
| -// It is caller's responsibility to free the returned value.
|
| -int mg_get_var(const char *buf, size_t buf_len, const char *name,
|
| - char *dst, size_t dst_len) {
|
| - const char *p, *e, *s;
|
| - size_t name_len, len;
|
| -
|
| - name_len = strlen(name);
|
| - e = buf + buf_len;
|
| - len = -1;
|
| - dst[0] = '\0';
|
| -
|
| - // buf is "var1=val1&var2=val2...". Find variable first
|
| - for (p = buf; p != NULL && p + name_len < e; p++) {
|
| - if ((p == buf || p[-1] == '&') && p[name_len] == '=' &&
|
| - !mg_strncasecmp(name, p, name_len)) {
|
| -
|
| - // Point p to variable value
|
| - p += name_len + 1;
|
| -
|
| - // Point s to the end of the value
|
| - s = (const char *) memchr(p, '&', (size_t)(e - p));
|
| - if (s == NULL) {
|
| - s = e;
|
| - }
|
| - assert(s >= p);
|
| -
|
| - // Decode variable into destination buffer
|
| - if ((size_t) (s - p) < dst_len) {
|
| - len = url_decode(p, (size_t)(s - p), dst, dst_len, 1);
|
| - }
|
| - break;
|
| - }
|
| - }
|
| -
|
| - return len;
|
| -}
|
| -
|
| -int mg_get_cookie(const struct mg_connection *conn, const char *cookie_name,
|
| - char *dst, size_t dst_size) {
|
| - const char *s, *p, *end;
|
| - int name_len, len = -1;
|
| -
|
| - dst[0] = '\0';
|
| - if ((s = mg_get_header(conn, "Cookie")) == NULL) {
|
| - return 0;
|
| - }
|
| -
|
| - name_len = strlen(cookie_name);
|
| - end = s + strlen(s);
|
| -
|
| - for (; (s = strstr(s, cookie_name)) != NULL; s += name_len)
|
| - if (s[name_len] == '=') {
|
| - s += name_len + 1;
|
| - if ((p = strchr(s, ' ')) == NULL)
|
| - p = end;
|
| - if (p[-1] == ';')
|
| - p--;
|
| - if (*s == '"' && p[-1] == '"' && p > s + 1) {
|
| - s++;
|
| - p--;
|
| - }
|
| - if ((size_t) (p - s) < dst_size) {
|
| - len = (p - s) + 1;
|
| - mg_strlcpy(dst, s, (size_t)len);
|
| - }
|
| - break;
|
| - }
|
| -
|
| - return len;
|
| -}
|
| -
|
| -// Mongoose allows to specify multiple directories to serve,
|
| -// like /var/www,/~bob=/home/bob. That means that root directory depends on URI.
|
| -// This function returns root dir for given URI.
|
| -static int get_document_root(const struct mg_connection *conn,
|
| - struct vec *document_root) {
|
| - const char *root, *uri;
|
| - int len_of_matched_uri;
|
| - struct vec uri_vec, path_vec;
|
| -
|
| - uri = conn->request_info.uri;
|
| - len_of_matched_uri = 0;
|
| - root = next_option(conn->ctx->config[DOCUMENT_ROOT], document_root, NULL);
|
| -
|
| - while ((root = next_option(root, &uri_vec, &path_vec)) != NULL) {
|
| - if (memcmp(uri, uri_vec.ptr, uri_vec.len) == 0) {
|
| - *document_root = path_vec;
|
| - len_of_matched_uri = uri_vec.len;
|
| - break;
|
| - }
|
| - }
|
| -
|
| - return len_of_matched_uri;
|
| -}
|
| -
|
| -static void convert_uri_to_file_name(struct mg_connection *conn,
|
| - const char *uri, char *buf,
|
| - size_t buf_len) {
|
| - struct vec vec;
|
| - int match_len;
|
| -
|
| - match_len = get_document_root(conn, &vec);
|
| - mg_snprintf(conn, buf, buf_len, "%.*s%s", vec.len, vec.ptr, uri + match_len);
|
| -
|
| -#if defined(_WIN32) && !defined(__SYMBIAN32__)
|
| - change_slashes_to_backslashes(buf);
|
| -#endif // _WIN32
|
| -
|
| - DEBUG_TRACE(("[%s] -> [%s], [%.*s]", uri, buf, (int) vec.len, vec.ptr));
|
| -}
|
| -
|
| -static int sslize(struct mg_connection *conn, int (*func)(SSL *)) {
|
| - return (conn->ssl = SSL_new(conn->ctx->ssl_ctx)) != NULL &&
|
| - SSL_set_fd(conn->ssl, conn->client.sock) == 1 &&
|
| - func(conn->ssl) == 1;
|
| -}
|
| -
|
| -static struct mg_connection *mg_connect(struct mg_connection *conn,
|
| - const char *host, int port, int use_ssl) {
|
| - struct mg_connection *newconn = NULL;
|
| - struct sockaddr_in sin;
|
| - struct hostent *he;
|
| - int sock;
|
| -
|
| - if (conn->ctx->ssl_ctx == NULL && use_ssl) {
|
| - cry(conn, "%s: SSL is not initialized", __func__);
|
| - } else if ((he = gethostbyname(host)) == NULL) {
|
| - cry(conn, "%s: gethostbyname(%s): %s", __func__, host, strerror(ERRNO));
|
| - } else if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
|
| - cry(conn, "%s: socket: %s", __func__, strerror(ERRNO));
|
| - } else {
|
| - sin.sin_family = AF_INET;
|
| - sin.sin_port = htons((uint16_t) port);
|
| - sin.sin_addr = * (struct in_addr *) he->h_addr_list[0];
|
| - if (connect(sock, (struct sockaddr *) &sin, sizeof(sin)) != 0) {
|
| - cry(conn, "%s: connect(%s:%d): %s", __func__, host, port,
|
| - strerror(ERRNO));
|
| - closesocket(sock);
|
| - } else if ((newconn = (struct mg_connection *)
|
| - calloc(1, sizeof(*newconn))) == NULL) {
|
| - cry(conn, "%s: calloc: %s", __func__, strerror(ERRNO));
|
| - closesocket(sock);
|
| - } else {
|
| - newconn->client.sock = sock;
|
| - newconn->client.rsa.u.sin = sin;
|
| - if (use_ssl) {
|
| - sslize(newconn, SSL_connect);
|
| - }
|
| - }
|
| - }
|
| -
|
| - return newconn;
|
| -}
|
| -
|
| -// Check whether full request is buffered. Return:
|
| -// -1 if request is malformed
|
| -// 0 if request is not yet fully buffered
|
| -// >0 actual request length, including last \r\n\r\n
|
| -static int get_request_len(const char *buf, int buflen) {
|
| - const char *s, *e;
|
| - int len = 0;
|
| -
|
| - DEBUG_TRACE(("buf: %p, len: %d", buf, buflen));
|
| - for (s = buf, e = s + buflen - 1; len <= 0 && s < e; s++)
|
| - // Control characters are not allowed but >=128 is.
|
| - if (!isprint(* (const unsigned char *) s) && *s != '\r' &&
|
| - *s != '\n' && * (const unsigned char *) s < 128) {
|
| - len = -1;
|
| - } else if (s[0] == '\n' && s[1] == '\n') {
|
| - len = (int) (s - buf) + 2;
|
| - } else if (s[0] == '\n' && &s[1] < e &&
|
| - s[1] == '\r' && s[2] == '\n') {
|
| - len = (int) (s - buf) + 3;
|
| - }
|
| -
|
| - return len;
|
| -}
|
| -
|
| -// Convert month to the month number. Return -1 on error, or month number
|
| -static int get_month_index(const char *s) {
|
| - size_t i;
|
| -
|
| - for (i = 0; i < ARRAY_SIZE(month_names); i++)
|
| - if (!strcmp(s, month_names[i]))
|
| - return (int) i;
|
| -
|
| - return -1;
|
| -}
|
| -
|
| -// Parse UTC date-time string, and return the corresponding time_t value.
|
| -static time_t parse_date_string(const char *datetime) {
|
| - static const unsigned short days_before_month[] = {
|
| - 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
|
| - };
|
| - char month_str[32];
|
| - int second, minute, hour, day, month, year, leap_days, days;
|
| - time_t result = (time_t) 0;
|
| -
|
| - if (((sscanf(datetime, "%d/%3s/%d %d:%d:%d",
|
| - &day, month_str, &year, &hour, &minute, &second) == 6) ||
|
| - (sscanf(datetime, "%d %3s %d %d:%d:%d",
|
| - &day, month_str, &year, &hour, &minute, &second) == 6) ||
|
| - (sscanf(datetime, "%*3s, %d %3s %d %d:%d:%d",
|
| - &day, month_str, &year, &hour, &minute, &second) == 6) ||
|
| - (sscanf(datetime, "%d-%3s-%d %d:%d:%d",
|
| - &day, month_str, &year, &hour, &minute, &second) == 6)) &&
|
| - year > 1970 &&
|
| - (month = get_month_index(month_str)) != -1) {
|
| - year -= 1970;
|
| - leap_days = year / 4 - year / 100 + year / 400;
|
| - days = year * 365 + days_before_month[month] + (day - 1) + leap_days;
|
| - result = days * 24 * 3600 + hour * 3600 + minute * 60 + second;
|
| - }
|
| -
|
| - return result;
|
| -}
|
| -
|
| -// Protect against directory disclosure attack by removing '..',
|
| -// excessive '/' and '\' characters
|
| -static void remove_double_dots_and_double_slashes(char *s) {
|
| - char *p = s;
|
| -
|
| - while (*s != '\0') {
|
| - *p++ = *s++;
|
| - if (s[-1] == '/' || s[-1] == '\\') {
|
| - // Skip all following slashes and backslashes
|
| - while (*s == '/' || *s == '\\') {
|
| - s++;
|
| - }
|
| -
|
| - // Skip all double-dots
|
| - while (*s == '.' && s[1] == '.') {
|
| - s += 2;
|
| - }
|
| - }
|
| - }
|
| - *p = '\0';
|
| -}
|
| -
|
| -static const struct {
|
| - const char *extension;
|
| - size_t ext_len;
|
| - const char *mime_type;
|
| - size_t mime_type_len;
|
| -} builtin_mime_types[] = {
|
| - {".html", 5, "text/html", 9},
|
| - {".htm", 4, "text/html", 9},
|
| - {".shtm", 5, "text/html", 9},
|
| - {".shtml", 6, "text/html", 9},
|
| - {".css", 4, "text/css", 8},
|
| - {".js", 3, "application/x-javascript", 24},
|
| - {".ico", 4, "image/x-icon", 12},
|
| - {".gif", 4, "image/gif", 9},
|
| - {".jpg", 4, "image/jpeg", 10},
|
| - {".jpeg", 5, "image/jpeg", 10},
|
| - {".png", 4, "image/png", 9},
|
| - {".svg", 4, "image/svg+xml", 13},
|
| - {".torrent", 8, "application/x-bittorrent", 24},
|
| - {".wav", 4, "audio/x-wav", 11},
|
| - {".mp3", 4, "audio/x-mp3", 11},
|
| - {".mid", 4, "audio/mid", 9},
|
| - {".m3u", 4, "audio/x-mpegurl", 15},
|
| - {".ram", 4, "audio/x-pn-realaudio", 20},
|
| - {".xml", 4, "text/xml", 8},
|
| - {".xslt", 5, "application/xml", 15},
|
| - {".ra", 3, "audio/x-pn-realaudio", 20},
|
| - {".doc", 4, "application/msword", 19},
|
| - {".exe", 4, "application/octet-stream", 24},
|
| - {".zip", 4, "application/x-zip-compressed", 28},
|
| - {".xls", 4, "application/excel", 17},
|
| - {".tgz", 4, "application/x-tar-gz", 20},
|
| - {".tar", 4, "application/x-tar", 17},
|
| - {".gz", 3, "application/x-gunzip", 20},
|
| - {".arj", 4, "application/x-arj-compressed", 28},
|
| - {".rar", 4, "application/x-arj-compressed", 28},
|
| - {".rtf", 4, "application/rtf", 15},
|
| - {".pdf", 4, "application/pdf", 15},
|
| - {".swf", 4, "application/x-shockwave-flash",29},
|
| - {".mpg", 4, "video/mpeg", 10},
|
| - {".mpeg", 5, "video/mpeg", 10},
|
| - {".mp4", 4, "video/mp4", 9},
|
| - {".m4v", 4, "video/x-m4v", 11},
|
| - {".asf", 4, "video/x-ms-asf", 14},
|
| - {".avi", 4, "video/x-msvideo", 15},
|
| - {".bmp", 4, "image/bmp", 9},
|
| - {NULL, 0, NULL, 0}
|
| -};
|
| -
|
| -// Look at the "path" extension and figure what mime type it has.
|
| -// Store mime type in the vector.
|
| -static void get_mime_type(struct mg_context *ctx, const char *path,
|
| - struct vec *vec) {
|
| - struct vec ext_vec, mime_vec;
|
| - const char *list, *ext;
|
| - size_t i, path_len;
|
| -
|
| - path_len = strlen(path);
|
| -
|
| - // Scan user-defined mime types first, in case user wants to
|
| - // override default mime types.
|
| - list = ctx->config[EXTRA_MIME_TYPES];
|
| - while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
|
| - // ext now points to the path suffix
|
| - ext = path + path_len - ext_vec.len;
|
| - if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
|
| - *vec = mime_vec;
|
| - return;
|
| - }
|
| - }
|
| -
|
| - // Now scan built-in mime types
|
| - for (i = 0; builtin_mime_types[i].extension != NULL; i++) {
|
| - ext = path + (path_len - builtin_mime_types[i].ext_len);
|
| - if (path_len > builtin_mime_types[i].ext_len &&
|
| - mg_strcasecmp(ext, builtin_mime_types[i].extension) == 0) {
|
| - vec->ptr = builtin_mime_types[i].mime_type;
|
| - vec->len = builtin_mime_types[i].mime_type_len;
|
| - return;
|
| - }
|
| - }
|
| -
|
| - // Nothing found. Fall back to "text/plain"
|
| - vec->ptr = "text/plain";
|
| - vec->len = 10;
|
| -}
|
| -
|
| -#ifndef HAVE_MD5
|
| -typedef struct MD5Context {
|
| - uint32_t buf[4];
|
| - uint32_t bits[2];
|
| - unsigned char in[64];
|
| -} MD5_CTX;
|
| -
|
| -#if defined(__BYTE_ORDER) && (__BYTE_ORDER == 1234)
|
| -#define byteReverse(buf, len) // Do nothing
|
| -#else
|
| -static void byteReverse(unsigned char *buf, unsigned longs) {
|
| - uint32_t t;
|
| - do {
|
| - t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
|
| - ((unsigned) buf[1] << 8 | buf[0]);
|
| - *(uint32_t *) buf = t;
|
| - buf += 4;
|
| - } while (--longs);
|
| -}
|
| -#endif
|
| -
|
| -#define F1(x, y, z) (z ^ (x & (y ^ z)))
|
| -#define F2(x, y, z) F1(z, x, y)
|
| -#define F3(x, y, z) (x ^ y ^ z)
|
| -#define F4(x, y, z) (y ^ (x | ~z))
|
| -
|
| -#define MD5STEP(f, w, x, y, z, data, s) \
|
| - ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
|
| -
|
| -// Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
|
| -// initialization constants.
|
| -static void MD5Init(MD5_CTX *ctx) {
|
| - ctx->buf[0] = 0x67452301;
|
| - ctx->buf[1] = 0xefcdab89;
|
| - ctx->buf[2] = 0x98badcfe;
|
| - ctx->buf[3] = 0x10325476;
|
| -
|
| - ctx->bits[0] = 0;
|
| - ctx->bits[1] = 0;
|
| -}
|
| -
|
| -static void MD5Transform(uint32_t buf[4], uint32_t const in[16]) {
|
| - register uint32_t a, b, c, d;
|
| -
|
| - a = buf[0];
|
| - b = buf[1];
|
| - c = buf[2];
|
| - d = buf[3];
|
| -
|
| - MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
|
| - MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
|
| - MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
|
| - MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
|
| - MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
|
| - MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
|
| - MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
|
| - MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
|
| - MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
|
| - MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
|
| - MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
|
| - MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
|
| - MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
|
| - MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
|
| - MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
|
| - MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
|
| -
|
| - MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
|
| - MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
|
| - MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
|
| - MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
|
| - MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
|
| - MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
|
| - MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
|
| - MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
|
| - MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
|
| - MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
|
| - MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
|
| - MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
|
| - MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
|
| - MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
|
| - MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
|
| - MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
|
| -
|
| - MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
|
| - MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
|
| - MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
|
| - MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
|
| - MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
|
| - MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
|
| - MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
|
| - MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
|
| - MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
|
| - MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
|
| - MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
|
| - MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
|
| - MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
|
| - MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
|
| - MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
|
| - MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
|
| -
|
| - MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
|
| - MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
|
| - MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
|
| - MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
|
| - MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
|
| - MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
|
| - MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
|
| - MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
|
| - MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
|
| - MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
|
| - MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
|
| - MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
|
| - MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
|
| - MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
|
| - MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
|
| - MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
|
| -
|
| - buf[0] += a;
|
| - buf[1] += b;
|
| - buf[2] += c;
|
| - buf[3] += d;
|
| -}
|
| -
|
| -static void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) {
|
| - uint32_t t;
|
| -
|
| - t = ctx->bits[0];
|
| - if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
|
| - ctx->bits[1]++;
|
| - ctx->bits[1] += len >> 29;
|
| -
|
| - t = (t >> 3) & 0x3f;
|
| -
|
| - if (t) {
|
| - unsigned char *p = (unsigned char *) ctx->in + t;
|
| -
|
| - t = 64 - t;
|
| - if (len < t) {
|
| - memcpy(p, buf, len);
|
| - return;
|
| - }
|
| - memcpy(p, buf, t);
|
| - byteReverse(ctx->in, 16);
|
| - MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
| - buf += t;
|
| - len -= t;
|
| - }
|
| -
|
| - while (len >= 64) {
|
| - memcpy(ctx->in, buf, 64);
|
| - byteReverse(ctx->in, 16);
|
| - MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
| - buf += 64;
|
| - len -= 64;
|
| - }
|
| -
|
| - memcpy(ctx->in, buf, len);
|
| -}
|
| -
|
| -static void MD5Final(unsigned char digest[16], MD5_CTX *ctx) {
|
| - unsigned count;
|
| - unsigned char *p;
|
| -
|
| - count = (ctx->bits[0] >> 3) & 0x3F;
|
| -
|
| - p = ctx->in + count;
|
| - *p++ = 0x80;
|
| - count = 64 - 1 - count;
|
| - if (count < 8) {
|
| - memset(p, 0, count);
|
| - byteReverse(ctx->in, 16);
|
| - MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
| - memset(ctx->in, 0, 56);
|
| - } else {
|
| - memset(p, 0, count - 8);
|
| - }
|
| - byteReverse(ctx->in, 14);
|
| -
|
| - ((uint32_t *) ctx->in)[14] = ctx->bits[0];
|
| - ((uint32_t *) ctx->in)[15] = ctx->bits[1];
|
| -
|
| - MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
| - byteReverse((unsigned char *) ctx->buf, 4);
|
| - memcpy(digest, ctx->buf, 16);
|
| - memset((char *) ctx, 0, sizeof(*ctx));
|
| -}
|
| -#endif // !HAVE_MD5
|
| -
|
| -// Stringify binary data. Output buffer must be twice as big as input,
|
| -// because each byte takes 2 bytes in string representation
|
| -static void bin2str(char *to, const unsigned char *p, size_t len) {
|
| - static const char *hex = "0123456789abcdef";
|
| -
|
| - for (; len--; p++) {
|
| - *to++ = hex[p[0] >> 4];
|
| - *to++ = hex[p[0] & 0x0f];
|
| - }
|
| - *to = '\0';
|
| -}
|
| -
|
| -// Return stringified MD5 hash for list of vectors. Buffer must be 33 bytes.
|
| -void mg_md5(char *buf, ...) {
|
| - unsigned char hash[16];
|
| - const char *p;
|
| - va_list ap;
|
| - MD5_CTX ctx;
|
| -
|
| - MD5Init(&ctx);
|
| -
|
| - va_start(ap, buf);
|
| - while ((p = va_arg(ap, const char *)) != NULL) {
|
| - MD5Update(&ctx, (const unsigned char *) p, (unsigned) strlen(p));
|
| - }
|
| - va_end(ap);
|
| -
|
| - MD5Final(hash, &ctx);
|
| - bin2str(buf, hash, sizeof(hash));
|
| -}
|
| -
|
| -// Check the user's password, return 1 if OK
|
| -static int check_password(const char *method, const char *ha1, const char *uri,
|
| - const char *nonce, const char *nc, const char *cnonce,
|
| - const char *qop, const char *response) {
|
| - char ha2[32 + 1], expected_response[32 + 1];
|
| -
|
| - // Some of the parameters may be NULL
|
| - if (method == NULL || nonce == NULL || nc == NULL || cnonce == NULL ||
|
| - qop == NULL || response == NULL) {
|
| - return 0;
|
| - }
|
| -
|
| - // NOTE(lsm): due to a bug in MSIE, we do not compare the URI
|
| - // TODO(lsm): check for authentication timeout
|
| - if (// strcmp(dig->uri, c->ouri) != 0 ||
|
| - strlen(response) != 32
|
| - // || now - strtoul(dig->nonce, NULL, 10) > 3600
|
| - ) {
|
| - return 0;
|
| - }
|
| -
|
| - mg_md5(ha2, method, ":", uri, NULL);
|
| - mg_md5(expected_response, ha1, ":", nonce, ":", nc,
|
| - ":", cnonce, ":", qop, ":", ha2, NULL);
|
| -
|
| - return mg_strcasecmp(response, expected_response) == 0;
|
| -}
|
| -
|
| -// Use the global passwords file, if specified by auth_gpass option,
|
| -// or search for .htpasswd in the requested directory.
|
| -static FILE *open_auth_file(struct mg_connection *conn, const char *path) {
|
| - struct mg_context *ctx = conn->ctx;
|
| - char name[PATH_MAX];
|
| - const char *p, *e;
|
| - struct mgstat st;
|
| - FILE *fp;
|
| -
|
| - if (ctx->config[GLOBAL_PASSWORDS_FILE] != NULL) {
|
| - // Use global passwords file
|
| - fp = mg_fopen(ctx->config[GLOBAL_PASSWORDS_FILE], "r");
|
| - if (fp == NULL)
|
| - cry(fc(ctx), "fopen(%s): %s",
|
| - ctx->config[GLOBAL_PASSWORDS_FILE], strerror(ERRNO));
|
| - } else if (!mg_stat(path, &st) && st.is_directory) {
|
| - (void) mg_snprintf(conn, name, sizeof(name), "%s%c%s",
|
| - path, DIRSEP, PASSWORDS_FILE_NAME);
|
| - fp = mg_fopen(name, "r");
|
| - } else {
|
| - // Try to find .htpasswd in requested directory.
|
| - for (p = path, e = p + strlen(p) - 1; e > p; e--)
|
| - if (IS_DIRSEP_CHAR(*e))
|
| - break;
|
| - (void) mg_snprintf(conn, name, sizeof(name), "%.*s%c%s",
|
| - (int) (e - p), p, DIRSEP, PASSWORDS_FILE_NAME);
|
| - fp = mg_fopen(name, "r");
|
| - }
|
| -
|
| - return fp;
|
| -}
|
| -
|
| -// Parsed Authorization header
|
| -struct ah {
|
| - char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
|
| -};
|
| -
|
| -static int parse_auth_header(struct mg_connection *conn, char *buf,
|
| - size_t buf_size, struct ah *ah) {
|
| - char *name, *value, *s;
|
| - const char *auth_header;
|
| -
|
| - if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
|
| - mg_strncasecmp(auth_header, "Digest ", 7) != 0) {
|
| - return 0;
|
| - }
|
| -
|
| - // Make modifiable copy of the auth header
|
| - (void) mg_strlcpy(buf, auth_header + 7, buf_size);
|
| -
|
| - s = buf;
|
| - (void) memset(ah, 0, sizeof(*ah));
|
| -
|
| - // Parse authorization header
|
| - for (;;) {
|
| - // Gobble initial spaces
|
| - while (isspace(* (unsigned char *) s)) {
|
| - s++;
|
| - }
|
| - name = skip_quoted(&s, "=", " ", 0);
|
| - // Value is either quote-delimited, or ends at first comma or space.
|
| - if (s[0] == '\"') {
|
| - s++;
|
| - value = skip_quoted(&s, "\"", " ", '\\');
|
| - if (s[0] == ',') {
|
| - s++;
|
| - }
|
| - } else {
|
| - value = skip_quoted(&s, ", ", " ", 0); // IE uses commas, FF uses spaces
|
| - }
|
| - if (*name == '\0') {
|
| - break;
|
| - }
|
| -
|
| - if (!strcmp(name, "username")) {
|
| - ah->user = value;
|
| - } else if (!strcmp(name, "cnonce")) {
|
| - ah->cnonce = value;
|
| - } else if (!strcmp(name, "response")) {
|
| - ah->response = value;
|
| - } else if (!strcmp(name, "uri")) {
|
| - ah->uri = value;
|
| - } else if (!strcmp(name, "qop")) {
|
| - ah->qop = value;
|
| - } else if (!strcmp(name, "nc")) {
|
| - ah->nc = value;
|
| - } else if (!strcmp(name, "nonce")) {
|
| - ah->nonce = value;
|
| - }
|
| - }
|
| -
|
| - // CGI needs it as REMOTE_USER
|
| - if (ah->user != NULL) {
|
| - conn->request_info.remote_user = mg_strdup(ah->user);
|
| - } else {
|
| - return 0;
|
| - }
|
| -
|
| - return 1;
|
| -}
|
| -
|
| -// Authorize against the opened passwords file. Return 1 if authorized.
|
| -static int authorize(struct mg_connection *conn, FILE *fp) {
|
| - struct ah ah;
|
| - char line[256], f_user[256], ha1[256], f_domain[256], buf[BUFSIZ];
|
| -
|
| - if (!parse_auth_header(conn, buf, sizeof(buf), &ah)) {
|
| - return 0;
|
| - }
|
| -
|
| - // Loop over passwords file
|
| - while (fgets(line, sizeof(line), fp) != NULL) {
|
| - if (sscanf(line, "%[^:]:%[^:]:%s", f_user, f_domain, ha1) != 3) {
|
| - continue;
|
| - }
|
| -
|
| - if (!strcmp(ah.user, f_user) &&
|
| - !strcmp(conn->ctx->config[AUTHENTICATION_DOMAIN], f_domain))
|
| - return check_password(
|
| - conn->request_info.request_method,
|
| - ha1, ah.uri, ah.nonce, ah.nc, ah.cnonce, ah.qop,
|
| - ah.response);
|
| - }
|
| -
|
| - return 0;
|
| -}
|
| -
|
| -// Return 1 if request is authorised, 0 otherwise.
|
| -static int check_authorization(struct mg_connection *conn, const char *path) {
|
| - FILE *fp;
|
| - char fname[PATH_MAX];
|
| - struct vec uri_vec, filename_vec;
|
| - const char *list;
|
| - int authorized;
|
| -
|
| - fp = NULL;
|
| - authorized = 1;
|
| -
|
| - list = conn->ctx->config[PROTECT_URI];
|
| - while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
|
| - if (!memcmp(conn->request_info.uri, uri_vec.ptr, uri_vec.len)) {
|
| - (void) mg_snprintf(conn, fname, sizeof(fname), "%.*s",
|
| - filename_vec.len, filename_vec.ptr);
|
| - if ((fp = mg_fopen(fname, "r")) == NULL) {
|
| - cry(conn, "%s: cannot open %s: %s", __func__, fname, strerror(errno));
|
| - }
|
| - break;
|
| - }
|
| - }
|
| -
|
| - if (fp == NULL) {
|
| - fp = open_auth_file(conn, path);
|
| - }
|
| -
|
| - if (fp != NULL) {
|
| - authorized = authorize(conn, fp);
|
| - (void) fclose(fp);
|
| - }
|
| -
|
| - return authorized;
|
| -}
|
| -
|
| -static void send_authorization_request(struct mg_connection *conn) {
|
| - conn->request_info.status_code = 401;
|
| - (void) mg_printf(conn,
|
| - "HTTP/1.1 401 Unauthorized\r\n"
|
| - "Content-Length: 0\r\n"
|
| - "WWW-Authenticate: Digest qop=\"auth\", "
|
| - "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
|
| - conn->ctx->config[AUTHENTICATION_DOMAIN],
|
| - (unsigned long) time(NULL));
|
| -}
|
| -
|
| -static int is_authorized_for_put(struct mg_connection *conn) {
|
| - FILE *fp;
|
| - int ret = 0;
|
| -
|
| - fp = conn->ctx->config[PUT_DELETE_PASSWORDS_FILE] == NULL ? NULL :
|
| - mg_fopen(conn->ctx->config[PUT_DELETE_PASSWORDS_FILE], "r");
|
| -
|
| - if (fp != NULL) {
|
| - ret = authorize(conn, fp);
|
| - (void) fclose(fp);
|
| - }
|
| -
|
| - return ret;
|
| -}
|
| -
|
| -int mg_modify_passwords_file(const char *fname, const char *domain,
|
| - const char *user, const char *pass) {
|
| - int found;
|
| - char line[512], u[512], d[512], ha1[33], tmp[PATH_MAX];
|
| - FILE *fp, *fp2;
|
| -
|
| - found = 0;
|
| - fp = fp2 = NULL;
|
| -
|
| - // Regard empty password as no password - remove user record.
|
| - if (pass != NULL && pass[0] == '\0') {
|
| - pass = NULL;
|
| - }
|
| -
|
| - (void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname);
|
| -
|
| - // Create the file if does not exist
|
| - if ((fp = mg_fopen(fname, "a+")) != NULL) {
|
| - (void) fclose(fp);
|
| - }
|
| -
|
| - // Open the given file and temporary file
|
| - if ((fp = mg_fopen(fname, "r")) == NULL) {
|
| - return 0;
|
| - } else if ((fp2 = mg_fopen(tmp, "w+")) == NULL) {
|
| - fclose(fp);
|
| - return 0;
|
| - }
|
| -
|
| - // Copy the stuff to temporary file
|
| - while (fgets(line, sizeof(line), fp) != NULL) {
|
| - if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2) {
|
| - continue;
|
| - }
|
| -
|
| - if (!strcmp(u, user) && !strcmp(d, domain)) {
|
| - found++;
|
| - if (pass != NULL) {
|
| - mg_md5(ha1, user, ":", domain, ":", pass, NULL);
|
| - fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
|
| - }
|
| - } else {
|
| - (void) fprintf(fp2, "%s", line);
|
| - }
|
| - }
|
| -
|
| - // If new user, just add it
|
| - if (!found && pass != NULL) {
|
| - mg_md5(ha1, user, ":", domain, ":", pass, NULL);
|
| - (void) fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
|
| - }
|
| -
|
| - // Close files
|
| - (void) fclose(fp);
|
| - (void) fclose(fp2);
|
| -
|
| - // Put the temp file in place of real file
|
| - (void) mg_remove(fname);
|
| - (void) mg_rename(tmp, fname);
|
| -
|
| - return 1;
|
| -}
|
| -
|
| -struct de {
|
| - struct mg_connection *conn;
|
| - char *file_name;
|
| - struct mgstat st;
|
| -};
|
| -
|
| -static void url_encode(const char *src, char *dst, size_t dst_len) {
|
| - static const char *dont_escape = "._-$,;~()";
|
| - static const char *hex = "0123456789abcdef";
|
| - const char *end = dst + dst_len - 1;
|
| -
|
| - for (; *src != '\0' && dst < end; src++, dst++) {
|
| - if (isalnum(*(const unsigned char *) src) ||
|
| - strchr(dont_escape, * (const unsigned char *) src) != NULL) {
|
| - *dst = *src;
|
| - } else if (dst + 2 < end) {
|
| - dst[0] = '%';
|
| - dst[1] = hex[(* (const unsigned char *) src) >> 4];
|
| - dst[2] = hex[(* (const unsigned char *) src) & 0xf];
|
| - dst += 2;
|
| - }
|
| - }
|
| -
|
| - *dst = '\0';
|
| -}
|
| -
|
| -static void print_dir_entry(struct de *de) {
|
| - char size[64], mod[64], href[PATH_MAX];
|
| -
|
| - if (de->st.is_directory) {
|
| - (void) mg_snprintf(de->conn, size, sizeof(size), "%s", "[DIRECTORY]");
|
| - } else {
|
| - // We use (signed) cast below because MSVC 6 compiler cannot
|
| - // convert unsigned __int64 to double. Sigh.
|
| - if (de->st.size < 1024) {
|
| - (void) mg_snprintf(de->conn, size, sizeof(size),
|
| - "%lu", (unsigned long) de->st.size);
|
| - } else if (de->st.size < 1024 * 1024) {
|
| - (void) mg_snprintf(de->conn, size, sizeof(size),
|
| - "%.1fk", (double) de->st.size / 1024.0);
|
| - } else if (de->st.size < 1024 * 1024 * 1024) {
|
| - (void) mg_snprintf(de->conn, size, sizeof(size),
|
| - "%.1fM", (double) de->st.size / 1048576);
|
| - } else {
|
| - (void) mg_snprintf(de->conn, size, sizeof(size),
|
| - "%.1fG", (double) de->st.size / 1073741824);
|
| - }
|
| - }
|
| - (void) strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M", localtime(&de->st.mtime));
|
| - url_encode(de->file_name, href, sizeof(href));
|
| - de->conn->num_bytes_sent += mg_printf(de->conn,
|
| - "<tr><td><a href=\"%s%s%s\">%s%s</a></td>"
|
| - "<td> %s</td><td> %s</td></tr>\n",
|
| - de->conn->request_info.uri, href, de->st.is_directory ? "/" : "",
|
| - de->file_name, de->st.is_directory ? "/" : "", mod, size);
|
| -}
|
| -
|
| -// This function is called from send_directory() and used for
|
| -// sorting directory entries by size, or name, or modification time.
|
| -// On windows, __cdecl specification is needed in case if project is built
|
| -// with __stdcall convention. qsort always requires __cdels callback.
|
| -static int WINCDECL compare_dir_entries(const void *p1, const void *p2) {
|
| - const struct de *a = (const struct de *) p1, *b = (const struct de *) p2;
|
| - const char *query_string = a->conn->request_info.query_string;
|
| - int cmp_result = 0;
|
| -
|
| - if (query_string == NULL) {
|
| - query_string = "na";
|
| - }
|
| -
|
| - if (a->st.is_directory && !b->st.is_directory) {
|
| - return -1; // Always put directories on top
|
| - } else if (!a->st.is_directory && b->st.is_directory) {
|
| - return 1; // Always put directories on top
|
| - } else if (*query_string == 'n') {
|
| - cmp_result = strcmp(a->file_name, b->file_name);
|
| - } else if (*query_string == 's') {
|
| - cmp_result = a->st.size == b->st.size ? 0 :
|
| - a->st.size > b->st.size ? 1 : -1;
|
| - } else if (*query_string == 'd') {
|
| - cmp_result = a->st.mtime == b->st.mtime ? 0 :
|
| - a->st.mtime > b->st.mtime ? 1 : -1;
|
| - }
|
| -
|
| - return query_string[1] == 'd' ? -cmp_result : cmp_result;
|
| -}
|
| -
|
| -static int scan_directory(struct mg_connection *conn, const char *dir,
|
| - void *data, void (*cb)(struct de *, void *)) {
|
| - char path[PATH_MAX];
|
| - struct dirent *dp;
|
| - DIR *dirp;
|
| - struct de de;
|
| -
|
| - if ((dirp = opendir(dir)) == NULL) {
|
| - return 0;
|
| - } else {
|
| - de.conn = conn;
|
| -
|
| - while ((dp = readdir(dirp)) != NULL) {
|
| - // Do not show current dir and passwords file
|
| - if (!strcmp(dp->d_name, ".") ||
|
| - !strcmp(dp->d_name, "..") ||
|
| - !strcmp(dp->d_name, PASSWORDS_FILE_NAME))
|
| - continue;
|
| -
|
| - mg_snprintf(conn, path, sizeof(path), "%s%c%s", dir, DIRSEP, dp->d_name);
|
| -
|
| - // If we don't memset stat structure to zero, mtime will have
|
| - // garbage and strftime() will segfault later on in
|
| - // print_dir_entry(). memset is required only if mg_stat()
|
| - // fails. For more details, see
|
| - // http://code.google.com/p/mongoose/issues/detail?id=79
|
| - if (mg_stat(path, &de.st) != 0) {
|
| - memset(&de.st, 0, sizeof(de.st));
|
| - }
|
| - de.file_name = dp->d_name;
|
| -
|
| - cb(&de, data);
|
| - }
|
| - (void) closedir(dirp);
|
| - }
|
| - return 1;
|
| -}
|
| -
|
| -struct dir_scan_data {
|
| - struct de *entries;
|
| - int num_entries;
|
| - int arr_size;
|
| -};
|
| -
|
| -static void dir_scan_callback(struct de *de, void *data) {
|
| - struct dir_scan_data *dsd = (struct dir_scan_data *) data;
|
| -
|
| - if (dsd->entries == NULL || dsd->num_entries >= dsd->arr_size) {
|
| - dsd->arr_size *= 2;
|
| - dsd->entries = (struct de *) realloc(dsd->entries, dsd->arr_size *
|
| - sizeof(dsd->entries[0]));
|
| - }
|
| - if (dsd->entries == NULL) {
|
| - // TODO(lsm): propagate an error to the caller
|
| - dsd->num_entries = 0;
|
| - } else {
|
| - dsd->entries[dsd->num_entries].file_name = mg_strdup(de->file_name);
|
| - dsd->entries[dsd->num_entries].st = de->st;
|
| - dsd->entries[dsd->num_entries].conn = de->conn;
|
| - dsd->num_entries++;
|
| - }
|
| -}
|
| -
|
| -static void handle_directory_request(struct mg_connection *conn,
|
| - const char *dir) {
|
| - int i, sort_direction;
|
| - struct dir_scan_data data = { NULL, 0, 128 };
|
| -
|
| - if (!scan_directory(conn, dir, &data, dir_scan_callback)) {
|
| - send_http_error(conn, 500, "Cannot open directory",
|
| - "Error: opendir(%s): %s", dir, strerror(ERRNO));
|
| - return;
|
| - }
|
| -
|
| - sort_direction = conn->request_info.query_string != NULL &&
|
| - conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
|
| -
|
| - mg_printf(conn, "%s",
|
| - "HTTP/1.1 200 OK\r\n"
|
| - "Connection: close\r\n"
|
| - "Content-Type: text/html; charset=utf-8\r\n\r\n");
|
| -
|
| - conn->num_bytes_sent += mg_printf(conn,
|
| - "<html><head><title>Index of %s</title>"
|
| - "<style>th {text-align: left;}</style></head>"
|
| - "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
|
| - "<tr><th><a href=\"?n%c\">Name</a></th>"
|
| - "<th><a href=\"?d%c\">Modified</a></th>"
|
| - "<th><a href=\"?s%c\">Size</a></th></tr>"
|
| - "<tr><td colspan=\"3\"><hr></td></tr>",
|
| - conn->request_info.uri, conn->request_info.uri,
|
| - sort_direction, sort_direction, sort_direction);
|
| -
|
| - // Print first entry - link to a parent directory
|
| - conn->num_bytes_sent += mg_printf(conn,
|
| - "<tr><td><a href=\"%s%s\">%s</a></td>"
|
| - "<td> %s</td><td> %s</td></tr>\n",
|
| - conn->request_info.uri, "..", "Parent directory", "-", "-");
|
| -
|
| - // Sort and print directory entries
|
| - qsort(data.entries, (size_t) data.num_entries, sizeof(data.entries[0]),
|
| - compare_dir_entries);
|
| - for (i = 0; i < data.num_entries; i++) {
|
| - print_dir_entry(&data.entries[i]);
|
| - free(data.entries[i].file_name);
|
| - }
|
| - free(data.entries);
|
| -
|
| - conn->num_bytes_sent += mg_printf(conn, "%s", "</table></body></html>");
|
| - conn->request_info.status_code = 200;
|
| -}
|
| -
|
| -// Send len bytes from the opened file to the client.
|
| -static void send_file_data(struct mg_connection *conn, FILE *fp, int64_t len) {
|
| - char buf[BUFSIZ];
|
| - int to_read, num_read, num_written;
|
| -
|
| - while (len > 0) {
|
| - // Calculate how much to read from the file in the buffer
|
| - to_read = sizeof(buf);
|
| - if ((int64_t) to_read > len)
|
| - to_read = (int) len;
|
| -
|
| - // Read from file, exit the loop on error
|
| - if ((num_read = fread(buf, 1, (size_t)to_read, fp)) == 0)
|
| - break;
|
| -
|
| - // Send read bytes to the client, exit the loop on error
|
| - if ((num_written = mg_write(conn, buf, (size_t)num_read)) != num_read)
|
| - break;
|
| -
|
| - // Both read and were successful, adjust counters
|
| - conn->num_bytes_sent += num_written;
|
| - len -= num_written;
|
| - }
|
| -}
|
| -
|
| -static int parse_range_header(const char *header, int64_t *a, int64_t *b) {
|
| - return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b);
|
| -}
|
| -
|
| -static void gmt_time_string(char *buf, size_t buf_len, time_t *t) {
|
| - strftime(buf, buf_len, "%a, %d %b %Y %H:%M:%S GMT", gmtime(t));
|
| -}
|
| -
|
| -static void handle_file_request(struct mg_connection *conn, const char *path,
|
| - struct mgstat *stp) {
|
| - char date[64], lm[64], etag[64], range[64];
|
| - const char *msg = "OK", *hdr;
|
| - time_t curtime = time(NULL);
|
| - int64_t cl, r1, r2;
|
| - struct vec mime_vec;
|
| - FILE *fp;
|
| - int n;
|
| -
|
| - get_mime_type(conn->ctx, path, &mime_vec);
|
| - cl = stp->size;
|
| - conn->request_info.status_code = 200;
|
| - range[0] = '\0';
|
| -
|
| - if ((fp = mg_fopen(path, "rb")) == NULL) {
|
| - send_http_error(conn, 500, http_500_error,
|
| - "fopen(%s): %s", path, strerror(ERRNO));
|
| - return;
|
| - }
|
| - set_close_on_exec(fileno(fp));
|
| -
|
| - // If Range: header specified, act accordingly
|
| - r1 = r2 = 0;
|
| - hdr = mg_get_header(conn, "Range");
|
| - if (hdr != NULL && (n = parse_range_header(hdr, &r1, &r2)) > 0) {
|
| - conn->request_info.status_code = 206;
|
| - (void) fseeko(fp, (off_t) r1, SEEK_SET);
|
| - cl = n == 2 ? r2 - r1 + 1: cl - r1;
|
| - (void) mg_snprintf(conn, range, sizeof(range),
|
| - "Content-Range: bytes "
|
| - "%" INT64_FMT "-%"
|
| - INT64_FMT "/%" INT64_FMT "\r\n",
|
| - r1, r1 + cl - 1, stp->size);
|
| - msg = "Partial Content";
|
| - }
|
| -
|
| - // Prepare Etag, Date, Last-Modified headers. Must be in UTC, according to
|
| - // http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3
|
| - gmt_time_string(date, sizeof(date), &curtime);
|
| - gmt_time_string(lm, sizeof(lm), &stp->mtime);
|
| - (void) mg_snprintf(conn, etag, sizeof(etag), "%lx.%lx",
|
| - (unsigned long) stp->mtime, (unsigned long) stp->size);
|
| -
|
| - (void) mg_printf(conn,
|
| - "HTTP/1.1 %d %s\r\n"
|
| - "Date: %s\r\n"
|
| - "Last-Modified: %s\r\n"
|
| - "Etag: \"%s\"\r\n"
|
| - "Content-Type: %.*s\r\n"
|
| - "Content-Length: %" INT64_FMT "\r\n"
|
| - "Connection: %s\r\n"
|
| - "Accept-Ranges: bytes\r\n"
|
| - "%s\r\n",
|
| - conn->request_info.status_code, msg, date, lm, etag,
|
| - mime_vec.len, mime_vec.ptr, cl, suggest_connection_header(conn), range);
|
| -
|
| - if (strcmp(conn->request_info.request_method, "HEAD") != 0) {
|
| - send_file_data(conn, fp, cl);
|
| - }
|
| - (void) fclose(fp);
|
| -}
|
| -
|
| -void mg_send_file(struct mg_connection *conn, const char *path) {
|
| - struct mgstat st;
|
| - if (mg_stat(path, &st) == 0) {
|
| - handle_file_request(conn, path, &st);
|
| - } else {
|
| - send_http_error(conn, 404, "Not Found", "%s", "File not found");
|
| - }
|
| -}
|
| -
|
| -
|
| -// Parse HTTP headers from the given buffer, advance buffer to the point
|
| -// where parsing stopped.
|
| -static void parse_http_headers(char **buf, struct mg_request_info *ri) {
|
| - int i;
|
| -
|
| - for (i = 0; i < (int) ARRAY_SIZE(ri->http_headers); i++) {
|
| - ri->http_headers[i].name = skip_quoted(buf, ":", " ", 0);
|
| - ri->http_headers[i].value = skip(buf, "\r\n");
|
| - if (ri->http_headers[i].name[0] == '\0')
|
| - break;
|
| - ri->num_headers = i + 1;
|
| - }
|
| -}
|
| -
|
| -static int is_valid_http_method(const char *method) {
|
| - return !strcmp(method, "GET") || !strcmp(method, "POST") ||
|
| - !strcmp(method, "HEAD") || !strcmp(method, "CONNECT") ||
|
| - !strcmp(method, "PUT") || !strcmp(method, "DELETE") ||
|
| - !strcmp(method, "OPTIONS") || !strcmp(method, "PROPFIND");
|
| -}
|
| -
|
| -// Parse HTTP request, fill in mg_request_info structure.
|
| -static int parse_http_request(char *buf, struct mg_request_info *ri) {
|
| - int status = 0;
|
| -
|
| - // RFC says that all initial whitespaces should be ingored
|
| - while (*buf != '\0' && isspace(* (unsigned char *) buf)) {
|
| - buf++;
|
| - }
|
| -
|
| - ri->request_method = skip(&buf, " ");
|
| - ri->uri = skip(&buf, " ");
|
| - ri->http_version = skip(&buf, "\r\n");
|
| -
|
| - if (is_valid_http_method(ri->request_method) &&
|
| - strncmp(ri->http_version, "HTTP/", 5) == 0) {
|
| - ri->http_version += 5; // Skip "HTTP/"
|
| - parse_http_headers(&buf, ri);
|
| - status = 1;
|
| - }
|
| -
|
| - return status;
|
| -}
|
| -
|
| -// Keep reading the input (either opened file descriptor fd, or socket sock,
|
| -// or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
|
| -// buffer (which marks the end of HTTP request). Buffer buf may already
|
| -// have some data. The length of the data is stored in nread.
|
| -// Upon every read operation, increase nread by the number of bytes read.
|
| -static int read_request(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int bufsiz,
|
| - int *nread) {
|
| - int n, request_len;
|
| -
|
| - request_len = 0;
|
| - while (*nread < bufsiz && request_len == 0) {
|
| - n = pull(fp, sock, ssl, buf + *nread, bufsiz - *nread);
|
| - if (n <= 0) {
|
| - break;
|
| - } else {
|
| - *nread += n;
|
| - request_len = get_request_len(buf, *nread);
|
| - }
|
| - }
|
| -
|
| - return request_len;
|
| -}
|
| -
|
| -// For given directory path, substitute it to valid index file.
|
| -// Return 0 if index file has been found, -1 if not found.
|
| -// If the file is found, it's stats is returned in stp.
|
| -static int substitute_index_file(struct mg_connection *conn, char *path,
|
| - size_t path_len, struct mgstat *stp) {
|
| - const char *list = conn->ctx->config[INDEX_FILES];
|
| - struct mgstat st;
|
| - struct vec filename_vec;
|
| - size_t n = strlen(path);
|
| - int found = 0;
|
| -
|
| - // The 'path' given to us points to the directory. Remove all trailing
|
| - // directory separator characters from the end of the path, and
|
| - // then append single directory separator character.
|
| - while (n > 0 && IS_DIRSEP_CHAR(path[n - 1])) {
|
| - n--;
|
| - }
|
| - path[n] = DIRSEP;
|
| -
|
| - // Traverse index files list. For each entry, append it to the given
|
| - // path and see if the file exists. If it exists, break the loop
|
| - while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
|
| -
|
| - // Ignore too long entries that may overflow path buffer
|
| - if (filename_vec.len > path_len - n)
|
| - continue;
|
| -
|
| - // Prepare full path to the index file
|
| - (void) mg_strlcpy(path + n + 1, filename_vec.ptr, filename_vec.len + 1);
|
| -
|
| - // Does it exist?
|
| - if (mg_stat(path, &st) == 0) {
|
| - // Yes it does, break the loop
|
| - *stp = st;
|
| - found = 1;
|
| - break;
|
| - }
|
| - }
|
| -
|
| - // If no index file exists, restore directory path
|
| - if (!found) {
|
| - path[n] = '\0';
|
| - }
|
| -
|
| - return found;
|
| -}
|
| -
|
| -// Return True if we should reply 304 Not Modified.
|
| -static int is_not_modified(const struct mg_connection *conn,
|
| - const struct mgstat *stp) {
|
| - const char *ims = mg_get_header(conn, "If-Modified-Since");
|
| - return ims != NULL && stp->mtime <= parse_date_string(ims);
|
| -}
|
| -
|
| -static int forward_body_data(struct mg_connection *conn, FILE *fp,
|
| - SOCKET sock, SSL *ssl) {
|
| - const char *expect, *buffered;
|
| - char buf[BUFSIZ];
|
| - int to_read, nread, buffered_len, success = 0;
|
| -
|
| - expect = mg_get_header(conn, "Expect");
|
| - assert(fp != NULL);
|
| -
|
| - if (conn->content_len == -1) {
|
| - send_http_error(conn, 411, "Length Required", "");
|
| - } else if (expect != NULL && mg_strcasecmp(expect, "100-continue")) {
|
| - send_http_error(conn, 417, "Expectation Failed", "");
|
| - } else {
|
| - if (expect != NULL) {
|
| - (void) mg_printf(conn, "%s", "HTTP/1.1 100 Continue\r\n\r\n");
|
| - }
|
| -
|
| - buffered = conn->buf + conn->request_len;
|
| - buffered_len = conn->data_len - conn->request_len;
|
| - assert(buffered_len >= 0);
|
| - assert(conn->consumed_content == 0);
|
| -
|
| - if (buffered_len > 0) {
|
| - if ((int64_t) buffered_len > conn->content_len) {
|
| - buffered_len = (int) conn->content_len;
|
| - }
|
| - push(fp, sock, ssl, buffered, (int64_t) buffered_len);
|
| - conn->consumed_content += buffered_len;
|
| - }
|
| -
|
| - while (conn->consumed_content < conn->content_len) {
|
| - to_read = sizeof(buf);
|
| - if ((int64_t) to_read > conn->content_len - conn->consumed_content) {
|
| - to_read = (int) (conn->content_len - conn->consumed_content);
|
| - }
|
| - nread = pull(NULL, conn->client.sock, conn->ssl, buf, to_read);
|
| - if (nread <= 0 || push(fp, sock, ssl, buf, nread) != nread) {
|
| - break;
|
| - }
|
| - conn->consumed_content += nread;
|
| - }
|
| -
|
| - if (conn->consumed_content == conn->content_len) {
|
| - success = 1;
|
| - }
|
| -
|
| - // Each error code path in this function must send an error
|
| - if (!success) {
|
| - send_http_error(conn, 577, http_500_error, "");
|
| - }
|
| - }
|
| -
|
| - return success;
|
| -}
|
| -
|
| -#if !defined(NO_CGI)
|
| -// This structure helps to create an environment for the spawned CGI program.
|
| -// Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
|
| -// last element must be NULL.
|
| -// However, on Windows there is a requirement that all these VARIABLE=VALUE\0
|
| -// strings must reside in a contiguous buffer. The end of the buffer is
|
| -// marked by two '\0' characters.
|
| -// We satisfy both worlds: we create an envp array (which is vars), all
|
| -// entries are actually pointers inside buf.
|
| -struct cgi_env_block {
|
| - struct mg_connection *conn;
|
| - char buf[CGI_ENVIRONMENT_SIZE]; // Environment buffer
|
| - int len; // Space taken
|
| - char *vars[MAX_CGI_ENVIR_VARS]; // char **envp
|
| - int nvars; // Number of variables
|
| -};
|
| -
|
| -// Append VARIABLE=VALUE\0 string to the buffer, and add a respective
|
| -// pointer into the vars array.
|
| -static char *addenv(struct cgi_env_block *block, const char *fmt, ...) {
|
| - int n, space;
|
| - char *added;
|
| - va_list ap;
|
| -
|
| - // Calculate how much space is left in the buffer
|
| - space = sizeof(block->buf) - block->len - 2;
|
| - assert(space >= 0);
|
| -
|
| - // Make a pointer to the free space int the buffer
|
| - added = block->buf + block->len;
|
| -
|
| - // Copy VARIABLE=VALUE\0 string into the free space
|
| - va_start(ap, fmt);
|
| - n = mg_vsnprintf(block->conn, added, (size_t) space, fmt, ap);
|
| - va_end(ap);
|
| -
|
| - // Make sure we do not overflow buffer and the envp array
|
| - if (n > 0 && n < space &&
|
| - block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
|
| - // Append a pointer to the added string into the envp array
|
| - block->vars[block->nvars++] = block->buf + block->len;
|
| - // Bump up used length counter. Include \0 terminator
|
| - block->len += n + 1;
|
| - }
|
| -
|
| - return added;
|
| -}
|
| -
|
| -static void prepare_cgi_environment(struct mg_connection *conn,
|
| - const char *prog,
|
| - struct cgi_env_block *blk) {
|
| - const char *s, *slash;
|
| - struct vec var_vec, root;
|
| - char *p;
|
| - int i;
|
| -
|
| - blk->len = blk->nvars = 0;
|
| - blk->conn = conn;
|
| -
|
| - memset(&root, 0, sizeof(root));
|
| -
|
| - get_document_root(conn, &root);
|
| -
|
| - addenv(blk, "SERVER_NAME=%s", conn->ctx->config[AUTHENTICATION_DOMAIN]);
|
| - addenv(blk, "SERVER_ROOT=%.*s", root.len, root.ptr);
|
| - addenv(blk, "DOCUMENT_ROOT=%.*s", root.len, root.ptr);
|
| -
|
| - // Prepare the environment block
|
| - addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
|
| - addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
|
| - addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP
|
| - addenv(blk, "SERVER_PORT=%d", ntohs(conn->client.lsa.u.sin.sin_port));
|
| - addenv(blk, "REQUEST_METHOD=%s", conn->request_info.request_method);
|
| - addenv(blk, "REMOTE_ADDR=%s",
|
| - inet_ntoa(conn->client.rsa.u.sin.sin_addr));
|
| - addenv(blk, "REMOTE_PORT=%d", conn->request_info.remote_port);
|
| - addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
|
| -
|
| - // SCRIPT_NAME
|
| - assert(conn->request_info.uri[0] == '/');
|
| - slash = strrchr(conn->request_info.uri, '/');
|
| - if ((s = strrchr(prog, '/')) == NULL)
|
| - s = prog;
|
| - addenv(blk, "SCRIPT_NAME=%.*s%s", slash - conn->request_info.uri,
|
| - conn->request_info.uri, s);
|
| -
|
| - addenv(blk, "SCRIPT_FILENAME=%s", prog);
|
| - addenv(blk, "PATH_TRANSLATED=%s", prog);
|
| - addenv(blk, "HTTPS=%s", conn->ssl == NULL ? "off" : "on");
|
| -
|
| - if ((s = mg_get_header(conn, "Content-Type")) != NULL)
|
| - addenv(blk, "CONTENT_TYPE=%s", s);
|
| -
|
| - if (conn->request_info.query_string != NULL)
|
| - addenv(blk, "QUERY_STRING=%s", conn->request_info.query_string);
|
| -
|
| - if ((s = mg_get_header(conn, "Content-Length")) != NULL)
|
| - addenv(blk, "CONTENT_LENGTH=%s", s);
|
| -
|
| - if ((s = getenv("PATH")) != NULL)
|
| - addenv(blk, "PATH=%s", s);
|
| -
|
| -#if defined(_WIN32)
|
| - if ((s = getenv("COMSPEC")) != NULL)
|
| - addenv(blk, "COMSPEC=%s", s);
|
| - if ((s = getenv("SYSTEMROOT")) != NULL)
|
| - addenv(blk, "SYSTEMROOT=%s", s);
|
| -#else
|
| - if ((s = getenv("LD_LIBRARY_PATH")) != NULL)
|
| - addenv(blk, "LD_LIBRARY_PATH=%s", s);
|
| -#endif // _WIN32
|
| -
|
| - if ((s = getenv("PERLLIB")) != NULL)
|
| - addenv(blk, "PERLLIB=%s", s);
|
| -
|
| - if (conn->request_info.remote_user != NULL) {
|
| - addenv(blk, "REMOTE_USER=%s", conn->request_info.remote_user);
|
| - addenv(blk, "%s", "AUTH_TYPE=Digest");
|
| - }
|
| -
|
| - // Add all headers as HTTP_* variables
|
| - for (i = 0; i < conn->request_info.num_headers; i++) {
|
| - p = addenv(blk, "HTTP_%s=%s",
|
| - conn->request_info.http_headers[i].name,
|
| - conn->request_info.http_headers[i].value);
|
| -
|
| - // Convert variable name into uppercase, and change - to _
|
| - for (; *p != '=' && *p != '\0'; p++) {
|
| - if (*p == '-')
|
| - *p = '_';
|
| - *p = (char) toupper(* (unsigned char *) p);
|
| - }
|
| - }
|
| -
|
| - // Add user-specified variables
|
| - s = conn->ctx->config[CGI_ENVIRONMENT];
|
| - while ((s = next_option(s, &var_vec, NULL)) != NULL) {
|
| - addenv(blk, "%.*s", var_vec.len, var_vec.ptr);
|
| - }
|
| -
|
| - blk->vars[blk->nvars++] = NULL;
|
| - blk->buf[blk->len++] = '\0';
|
| -
|
| - assert(blk->nvars < (int) ARRAY_SIZE(blk->vars));
|
| - assert(blk->len > 0);
|
| - assert(blk->len < (int) sizeof(blk->buf));
|
| -}
|
| -
|
| -static void handle_cgi_request(struct mg_connection *conn, const char *prog) {
|
| - int headers_len, data_len, i, fd_stdin[2], fd_stdout[2];
|
| - const char *status;
|
| - char buf[BUFSIZ], *pbuf, dir[PATH_MAX], *p;
|
| - struct mg_request_info ri;
|
| - struct cgi_env_block blk;
|
| - FILE *in, *out;
|
| - pid_t pid;
|
| -
|
| - memset(&ri, 0, sizeof(ri));
|
| -
|
| - prepare_cgi_environment(conn, prog, &blk);
|
| -
|
| - // CGI must be executed in its own directory. 'dir' must point to the
|
| - // directory containing executable program, 'p' must point to the
|
| - // executable program name relative to 'dir'.
|
| - (void) mg_snprintf(conn, dir, sizeof(dir), "%s", prog);
|
| - if ((p = strrchr(dir, DIRSEP)) != NULL) {
|
| - *p++ = '\0';
|
| - } else {
|
| - dir[0] = '.', dir[1] = '\0';
|
| - p = (char *) prog;
|
| - }
|
| -
|
| - pid = (pid_t) -1;
|
| - fd_stdin[0] = fd_stdin[1] = fd_stdout[0] = fd_stdout[1] = -1;
|
| - in = out = NULL;
|
| -
|
| - if (pipe(fd_stdin) != 0 || pipe(fd_stdout) != 0) {
|
| - send_http_error(conn, 500, http_500_error,
|
| - "Cannot create CGI pipe: %s", strerror(ERRNO));
|
| - goto done;
|
| - } else if ((pid = spawn_process(conn, p, blk.buf, blk.vars,
|
| - fd_stdin[0], fd_stdout[1], dir)) == (pid_t) -1) {
|
| - goto done;
|
| - } else if ((in = fdopen(fd_stdin[1], "wb")) == NULL ||
|
| - (out = fdopen(fd_stdout[0], "rb")) == NULL) {
|
| - send_http_error(conn, 500, http_500_error,
|
| - "fopen: %s", strerror(ERRNO));
|
| - goto done;
|
| - }
|
| -
|
| - setbuf(in, NULL);
|
| - setbuf(out, NULL);
|
| -
|
| - // spawn_process() must close those!
|
| - // If we don't mark them as closed, close() attempt before
|
| - // return from this function throws an exception on Windows.
|
| - // Windows does not like when closed descriptor is closed again.
|
| - fd_stdin[0] = fd_stdout[1] = -1;
|
| -
|
| - // Send POST data to the CGI process if needed
|
| - if (!strcmp(conn->request_info.request_method, "POST") &&
|
| - !forward_body_data(conn, in, INVALID_SOCKET, NULL)) {
|
| - goto done;
|
| - }
|
| -
|
| - // Now read CGI reply into a buffer. We need to set correct
|
| - // status code, thus we need to see all HTTP headers first.
|
| - // Do not send anything back to client, until we buffer in all
|
| - // HTTP headers.
|
| - data_len = 0;
|
| - headers_len = read_request(out, INVALID_SOCKET, NULL,
|
| - buf, sizeof(buf), &data_len);
|
| - if (headers_len <= 0) {
|
| - send_http_error(conn, 500, http_500_error,
|
| - "CGI program sent malformed HTTP headers: [%.*s]",
|
| - data_len, buf);
|
| - goto done;
|
| - }
|
| - pbuf = buf;
|
| - buf[headers_len - 1] = '\0';
|
| - parse_http_headers(&pbuf, &ri);
|
| -
|
| - // Make up and send the status line
|
| - status = get_header(&ri, "Status");
|
| - conn->request_info.status_code = status == NULL ? 200 : atoi(status);
|
| - (void) mg_printf(conn, "HTTP/1.1 %d OK\r\n", conn->request_info.status_code);
|
| -
|
| - // Send headers
|
| - for (i = 0; i < ri.num_headers; i++) {
|
| - mg_printf(conn, "%s: %s\r\n",
|
| - ri.http_headers[i].name, ri.http_headers[i].value);
|
| - }
|
| - (void) mg_write(conn, "\r\n", 2);
|
| -
|
| - // Send chunk of data that may be read after the headers
|
| - conn->num_bytes_sent += mg_write(conn, buf + headers_len,
|
| - (size_t)(data_len - headers_len));
|
| -
|
| - // Read the rest of CGI output and send to the client
|
| - send_file_data(conn, out, INT64_MAX);
|
| -
|
| -done:
|
| - if (pid != (pid_t) -1) {
|
| - kill(pid, SIGKILL);
|
| - }
|
| - if (fd_stdin[0] != -1) {
|
| - (void) close(fd_stdin[0]);
|
| - }
|
| - if (fd_stdout[1] != -1) {
|
| - (void) close(fd_stdout[1]);
|
| - }
|
| -
|
| - if (in != NULL) {
|
| - (void) fclose(in);
|
| - } else if (fd_stdin[1] != -1) {
|
| - (void) close(fd_stdin[1]);
|
| - }
|
| -
|
| - if (out != NULL) {
|
| - (void) fclose(out);
|
| - } else if (fd_stdout[0] != -1) {
|
| - (void) close(fd_stdout[0]);
|
| - }
|
| -}
|
| -#endif // !NO_CGI
|
| -
|
| -// For a given PUT path, create all intermediate subdirectories
|
| -// for given path. Return 0 if the path itself is a directory,
|
| -// or -1 on error, 1 if OK.
|
| -static int put_dir(const char *path) {
|
| - char buf[PATH_MAX];
|
| - const char *s, *p;
|
| - struct mgstat st;
|
| - int len, res = 1;
|
| -
|
| - for (s = p = path + 2; (p = strchr(s, DIRSEP)) != NULL; s = ++p) {
|
| - len = p - path;
|
| - if (len >= (int) sizeof(buf)) {
|
| - res = -1;
|
| - break;
|
| - }
|
| - memcpy(buf, path, len);
|
| - buf[len] = '\0';
|
| -
|
| - // Try to create intermediate directory
|
| - DEBUG_TRACE(("mkdir(%s)", buf));
|
| - if (mg_stat(buf, &st) == -1 && mg_mkdir(buf, 0755) != 0) {
|
| - res = -1;
|
| - break;
|
| - }
|
| -
|
| - // Is path itself a directory?
|
| - if (p[1] == '\0') {
|
| - res = 0;
|
| - }
|
| - }
|
| -
|
| - return res;
|
| -}
|
| -
|
| -static void put_file(struct mg_connection *conn, const char *path) {
|
| - struct mgstat st;
|
| - const char *range;
|
| - int64_t r1, r2;
|
| - FILE *fp;
|
| - int rc;
|
| -
|
| - conn->request_info.status_code = mg_stat(path, &st) == 0 ? 200 : 201;
|
| -
|
| - if ((rc = put_dir(path)) == 0) {
|
| - mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n", conn->request_info.status_code);
|
| - } else if (rc == -1) {
|
| - send_http_error(conn, 500, http_500_error,
|
| - "put_dir(%s): %s", path, strerror(ERRNO));
|
| - } else if ((fp = mg_fopen(path, "wb+")) == NULL) {
|
| - send_http_error(conn, 500, http_500_error,
|
| - "fopen(%s): %s", path, strerror(ERRNO));
|
| - } else {
|
| - set_close_on_exec(fileno(fp));
|
| - range = mg_get_header(conn, "Content-Range");
|
| - r1 = r2 = 0;
|
| - if (range != NULL && parse_range_header(range, &r1, &r2) > 0) {
|
| - conn->request_info.status_code = 206;
|
| - // TODO(lsm): handle seek error
|
| - (void) fseeko(fp, (off_t) r1, SEEK_SET);
|
| - }
|
| - if (forward_body_data(conn, fp, INVALID_SOCKET, NULL))
|
| - (void) mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n",
|
| - conn->request_info.status_code);
|
| - (void) fclose(fp);
|
| - }
|
| -}
|
| -
|
| -static void send_ssi_file(struct mg_connection *, const char *, FILE *, int);
|
| -
|
| -static void do_ssi_include(struct mg_connection *conn, const char *ssi,
|
| - char *tag, int include_level) {
|
| - char file_name[BUFSIZ], path[PATH_MAX], *p;
|
| - struct vec root;
|
| - int is_ssi;
|
| - FILE *fp;
|
| -
|
| - get_document_root(conn, &root);
|
| -
|
| - // sscanf() is safe here, since send_ssi_file() also uses buffer
|
| - // of size BUFSIZ to get the tag. So strlen(tag) is always < BUFSIZ.
|
| - if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
|
| - // File name is relative to the webserver root
|
| - (void) mg_snprintf(conn, path, sizeof(path), "%.*s%c%s",
|
| - root.len, root.ptr, DIRSEP, file_name);
|
| - } else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1) {
|
| - // File name is relative to the webserver working directory
|
| - // or it is absolute system path
|
| - (void) mg_snprintf(conn, path, sizeof(path), "%s", file_name);
|
| - } else if (sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
|
| - // File name is relative to the currect document
|
| - (void) mg_snprintf(conn, path, sizeof(path), "%s", ssi);
|
| - if ((p = strrchr(path, DIRSEP)) != NULL) {
|
| - p[1] = '\0';
|
| - }
|
| - (void) mg_snprintf(conn, path + strlen(path),
|
| - sizeof(path) - strlen(path), "%s", file_name);
|
| - } else {
|
| - cry(conn, "Bad SSI #include: [%s]", tag);
|
| - return;
|
| - }
|
| -
|
| - if ((fp = mg_fopen(path, "rb")) == NULL) {
|
| - cry(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
|
| - tag, path, strerror(ERRNO));
|
| - } else {
|
| - set_close_on_exec(fileno(fp));
|
| - is_ssi = match_extension(path, conn->ctx->config[SSI_EXTENSIONS]);
|
| - if (is_ssi) {
|
| - send_ssi_file(conn, path, fp, include_level + 1);
|
| - } else {
|
| - send_file_data(conn, fp, INT64_MAX);
|
| - }
|
| - (void) fclose(fp);
|
| - }
|
| -}
|
| -
|
| -#if !defined(NO_POPEN)
|
| -static void do_ssi_exec(struct mg_connection *conn, char *tag) {
|
| - char cmd[BUFSIZ];
|
| - FILE *fp;
|
| -
|
| - if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
|
| - cry(conn, "Bad SSI #exec: [%s]", tag);
|
| - } else if ((fp = popen(cmd, "r")) == NULL) {
|
| - cry(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(ERRNO));
|
| - } else {
|
| - send_file_data(conn, fp, INT64_MAX);
|
| - (void) pclose(fp);
|
| - }
|
| -}
|
| -#endif // !NO_POPEN
|
| -
|
| -static void send_ssi_file(struct mg_connection *conn, const char *path,
|
| - FILE *fp, int include_level) {
|
| - char buf[BUFSIZ];
|
| - int ch, len, in_ssi_tag;
|
| -
|
| - if (include_level > 10) {
|
| - cry(conn, "SSI #include level is too deep (%s)", path);
|
| - return;
|
| - }
|
| -
|
| - in_ssi_tag = 0;
|
| - len = 0;
|
| -
|
| - while ((ch = fgetc(fp)) != EOF) {
|
| - if (in_ssi_tag && ch == '>') {
|
| - in_ssi_tag = 0;
|
| - buf[len++] = (char) ch;
|
| - buf[len] = '\0';
|
| - assert(len <= (int) sizeof(buf));
|
| - if (len < 6 || memcmp(buf, "<!--#", 5) != 0) {
|
| - // Not an SSI tag, pass it
|
| - (void) mg_write(conn, buf, (size_t)len);
|
| - } else {
|
| - if (!memcmp(buf + 5, "include", 7)) {
|
| - do_ssi_include(conn, path, buf + 12, include_level);
|
| -#if !defined(NO_POPEN)
|
| - } else if (!memcmp(buf + 5, "exec", 4)) {
|
| - do_ssi_exec(conn, buf + 9);
|
| -#endif // !NO_POPEN
|
| - } else {
|
| - cry(conn, "%s: unknown SSI " "command: \"%s\"", path, buf);
|
| - }
|
| - }
|
| - len = 0;
|
| - } else if (in_ssi_tag) {
|
| - if (len == 5 && memcmp(buf, "<!--#", 5) != 0) {
|
| - // Not an SSI tag
|
| - in_ssi_tag = 0;
|
| - } else if (len == (int) sizeof(buf) - 2) {
|
| - cry(conn, "%s: SSI tag is too large", path);
|
| - len = 0;
|
| - }
|
| - buf[len++] = ch & 0xff;
|
| - } else if (ch == '<') {
|
| - in_ssi_tag = 1;
|
| - if (len > 0) {
|
| - (void) mg_write(conn, buf, (size_t)len);
|
| - }
|
| - len = 0;
|
| - buf[len++] = ch & 0xff;
|
| - } else {
|
| - buf[len++] = ch & 0xff;
|
| - if (len == (int) sizeof(buf)) {
|
| - (void) mg_write(conn, buf, (size_t)len);
|
| - len = 0;
|
| - }
|
| - }
|
| - }
|
| -
|
| - // Send the rest of buffered data
|
| - if (len > 0) {
|
| - (void) mg_write(conn, buf, (size_t)len);
|
| - }
|
| -}
|
| -
|
| -static void handle_ssi_file_request(struct mg_connection *conn,
|
| - const char *path) {
|
| - FILE *fp;
|
| -
|
| - if ((fp = mg_fopen(path, "rb")) == NULL) {
|
| - send_http_error(conn, 500, http_500_error, "fopen(%s): %s", path,
|
| - strerror(ERRNO));
|
| - } else {
|
| - set_close_on_exec(fileno(fp));
|
| - mg_printf(conn, "HTTP/1.1 200 OK\r\n"
|
| - "Content-Type: text/html\r\nConnection: %s\r\n\r\n",
|
| - suggest_connection_header(conn));
|
| - send_ssi_file(conn, path, fp, 0);
|
| - (void) fclose(fp);
|
| - }
|
| -}
|
| -
|
| -static void send_options(struct mg_connection *conn) {
|
| - conn->request_info.status_code = 200;
|
| -
|
| - (void) mg_printf(conn,
|
| - "HTTP/1.1 200 OK\r\n"
|
| - "Allow: GET, POST, HEAD, CONNECT, PUT, DELETE, OPTIONS\r\n"
|
| - "DAV: 1\r\n\r\n");
|
| -}
|
| -
|
| -// Writes PROPFIND properties for a collection element
|
| -static void print_props(struct mg_connection *conn, const char* uri,
|
| - struct mgstat* st) {
|
| - char mtime[64];
|
| - gmt_time_string(mtime, sizeof(mtime), &st->mtime);
|
| - conn->num_bytes_sent += mg_printf(conn,
|
| - "<d:response>"
|
| - "<d:href>%s</d:href>"
|
| - "<d:propstat>"
|
| - "<d:prop>"
|
| - "<d:resourcetype>%s</d:resourcetype>"
|
| - "<d:getcontentlength>%" INT64_FMT "</d:getcontentlength>"
|
| - "<d:getlastmodified>%s</d:getlastmodified>"
|
| - "</d:prop>"
|
| - "<d:status>HTTP/1.1 200 OK</d:status>"
|
| - "</d:propstat>"
|
| - "</d:response>\n",
|
| - uri,
|
| - st->is_directory ? "<d:collection/>" : "",
|
| - st->size,
|
| - mtime);
|
| -}
|
| -
|
| -static void print_dav_dir_entry(struct de *de, void *data) {
|
| - char href[PATH_MAX];
|
| - struct mg_connection *conn = (struct mg_connection *) data;
|
| - mg_snprintf(conn, href, sizeof(href), "%s%s",
|
| - conn->request_info.uri, de->file_name);
|
| - print_props(conn, href, &de->st);
|
| -}
|
| -
|
| -static void handle_propfind(struct mg_connection *conn, const char* path,
|
| - struct mgstat* st) {
|
| - const char *depth = mg_get_header(conn, "Depth");
|
| -
|
| - conn->request_info.status_code = 207;
|
| - mg_printf(conn, "HTTP/1.1 207 Multi-Status\r\n"
|
| - "Connection: close\r\n"
|
| - "Content-Type: text/xml; charset=utf-8\r\n\r\n");
|
| -
|
| - conn->num_bytes_sent += mg_printf(conn,
|
| - "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
|
| - "<d:multistatus xmlns:d='DAV:'>\n");
|
| -
|
| - // Print properties for the requested resource itself
|
| - print_props(conn, conn->request_info.uri, st);
|
| -
|
| - // If it is a directory, print directory entries too if Depth is not 0
|
| - if (st->is_directory &&
|
| - !mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes") &&
|
| - (depth == NULL || strcmp(depth, "0") != 0)) {
|
| - scan_directory(conn, path, conn, &print_dav_dir_entry);
|
| - }
|
| -
|
| - conn->num_bytes_sent += mg_printf(conn, "%s\n", "</d:multistatus>");
|
| -}
|
| -
|
| -// This is the heart of the Mongoose's logic.
|
| -// This function is called when the request is read, parsed and validated,
|
| -// and Mongoose must decide what action to take: serve a file, or
|
| -// a directory, or call embedded function, etcetera.
|
| -static void handle_request(struct mg_connection *conn) {
|
| - struct mg_request_info *ri = &conn->request_info;
|
| - char path[PATH_MAX];
|
| - int uri_len;
|
| - struct mgstat st;
|
| -
|
| - if ((conn->request_info.query_string = strchr(ri->uri, '?')) != NULL) {
|
| - * conn->request_info.query_string++ = '\0';
|
| - }
|
| - uri_len = strlen(ri->uri);
|
| - url_decode(ri->uri, (size_t)uri_len, ri->uri, (size_t)(uri_len + 1), 0);
|
| - remove_double_dots_and_double_slashes(ri->uri);
|
| - convert_uri_to_file_name(conn, ri->uri, path, sizeof(path));
|
| -
|
| - DEBUG_TRACE(("%s", ri->uri));
|
| - if (!check_authorization(conn, path)) {
|
| - send_authorization_request(conn);
|
| - } else if (call_user(conn, MG_NEW_REQUEST) != NULL) {
|
| - // Do nothing, callback has served the request
|
| - } else if (!strcmp(ri->request_method, "OPTIONS")) {
|
| - send_options(conn);
|
| - } else if (strstr(path, PASSWORDS_FILE_NAME)) {
|
| - // Do not allow to view passwords files
|
| - send_http_error(conn, 403, "Forbidden", "Access Forbidden");
|
| - } else if (conn->ctx->config[DOCUMENT_ROOT] == NULL) {
|
| - send_http_error(conn, 404, "Not Found", "Not Found");
|
| - } else if ((!strcmp(ri->request_method, "PUT") ||
|
| - !strcmp(ri->request_method, "DELETE")) &&
|
| - (conn->ctx->config[PUT_DELETE_PASSWORDS_FILE] == NULL ||
|
| - !is_authorized_for_put(conn))) {
|
| - send_authorization_request(conn);
|
| - } else if (!strcmp(ri->request_method, "PUT")) {
|
| - put_file(conn, path);
|
| - } else if (!strcmp(ri->request_method, "DELETE")) {
|
| - if (mg_remove(path) == 0) {
|
| - send_http_error(conn, 200, "OK", "");
|
| - } else {
|
| - send_http_error(conn, 500, http_500_error, "remove(%s): %s", path,
|
| - strerror(ERRNO));
|
| - }
|
| - } else if (mg_stat(path, &st) != 0) {
|
| - send_http_error(conn, 404, "Not Found", "%s", "File not found");
|
| - } else if (st.is_directory && ri->uri[uri_len - 1] != '/') {
|
| - (void) mg_printf(conn,
|
| - "HTTP/1.1 301 Moved Permanently\r\n"
|
| - "Location: %s/\r\n\r\n", ri->uri);
|
| - } else if (!strcmp(ri->request_method, "PROPFIND")) {
|
| - handle_propfind(conn, path, &st);
|
| - } else if (st.is_directory &&
|
| - !substitute_index_file(conn, path, sizeof(path), &st)) {
|
| - if (!mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes")) {
|
| - handle_directory_request(conn, path);
|
| - } else {
|
| - send_http_error(conn, 403, "Directory Listing Denied",
|
| - "Directory listing denied");
|
| - }
|
| -#if !defined(NO_CGI)
|
| - } else if (match_extension(path, conn->ctx->config[CGI_EXTENSIONS])) {
|
| - if (strcmp(ri->request_method, "POST") &&
|
| - strcmp(ri->request_method, "GET")) {
|
| - send_http_error(conn, 501, "Not Implemented",
|
| - "Method %s is not implemented", ri->request_method);
|
| - } else {
|
| - handle_cgi_request(conn, path);
|
| - }
|
| -#endif // !NO_CGI
|
| - } else if (match_extension(path, conn->ctx->config[SSI_EXTENSIONS])) {
|
| - handle_ssi_file_request(conn, path);
|
| - } else if (is_not_modified(conn, &st)) {
|
| - send_http_error(conn, 304, "Not Modified", "");
|
| - } else {
|
| - handle_file_request(conn, path, &st);
|
| - }
|
| -}
|
| -
|
| -static void close_all_listening_sockets(struct mg_context *ctx) {
|
| - struct socket *sp, *tmp;
|
| - for (sp = ctx->listening_sockets; sp != NULL; sp = tmp) {
|
| - tmp = sp->next;
|
| - (void) closesocket(sp->sock);
|
| - free(sp);
|
| - }
|
| -}
|
| -
|
| -// Valid listening port specification is: [ip_address:]port[s|p]
|
| -// Examples: 80, 443s, 127.0.0.1:3128p, 1.2.3.4:8080sp
|
| -static int parse_port_string(const struct vec *vec, struct socket *so) {
|
| - struct usa *usa = &so->lsa;
|
| - int a, b, c, d, port, len;
|
| -
|
| - // MacOS needs that. If we do not zero it, subsequent bind() will fail.
|
| - memset(so, 0, sizeof(*so));
|
| -
|
| - if (sscanf(vec->ptr, "%d.%d.%d.%d:%d%n", &a, &b, &c, &d, &port, &len) == 5) {
|
| - // IP address to bind to is specified
|
| - usa->u.sin.sin_addr.s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
|
| - } else if (sscanf(vec->ptr, "%d%n", &port, &len) == 1) {
|
| - // Only port number is specified. Bind to all addresses
|
| - usa->u.sin.sin_addr.s_addr = htonl(INADDR_ANY);
|
| - } else {
|
| - return 0;
|
| - }
|
| - assert(len > 0 && len <= (int) vec->len);
|
| -
|
| - if (strchr("sp,", vec->ptr[len]) == NULL) {
|
| - return 0;
|
| - }
|
| -
|
| - so->is_ssl = vec->ptr[len] == 's';
|
| - so->is_proxy = vec->ptr[len] == 'p';
|
| - usa->len = sizeof(usa->u.sin);
|
| - usa->u.sin.sin_family = AF_INET;
|
| - usa->u.sin.sin_port = htons((uint16_t) port);
|
| -
|
| - return 1;
|
| -}
|
| -
|
| -static int set_ports_option(struct mg_context *ctx) {
|
| - const char *list = ctx->config[LISTENING_PORTS];
|
| - int on = 1, success = 1;
|
| - SOCKET sock;
|
| - struct vec vec;
|
| - struct socket so, *listener;
|
| -
|
| - struct linger linger;
|
| - linger.l_onoff = 1;
|
| - linger.l_linger = 1;
|
| -
|
| - while (success && (list = next_option(list, &vec, NULL)) != NULL) {
|
| - if (!parse_port_string(&vec, &so)) {
|
| - cry(fc(ctx), "%s: %.*s: invalid port spec. Expecting list of: %s",
|
| - __func__, vec.len, vec.ptr, "[IP_ADDRESS:]PORT[s|p]");
|
| - success = 0;
|
| - } else if (so.is_ssl && ctx->ssl_ctx == NULL) {
|
| - cry(fc(ctx), "Cannot add SSL socket, is -ssl_certificate option set?");
|
| - success = 0;
|
| - } else if ((sock = socket(PF_INET, SOCK_STREAM, 6)) == INVALID_SOCKET ||
|
| -#if !defined(_WIN32)
|
| - // On Windows, SO_REUSEADDR is recommended only for
|
| - // broadcast UDP sockets
|
| - setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &on,
|
| - sizeof(on)) != 0 ||
|
| -#endif // !_WIN32
|
| - // Set TCP keep-alive. This is needed because if HTTP-level
|
| - // keep-alive is enabled, and client resets the connection,
|
| - // server won't get TCP FIN or RST and will keep the connection
|
| - // open forever. With TCP keep-alive, next keep-alive
|
| - // handshake will figure out that the client is down and
|
| - // will close the server end.
|
| - // Thanks to Igor Klopov who suggested the patch.
|
| - setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (void *) &on,
|
| - sizeof(on)) != 0 ||
|
| - setsockopt(sock, SOL_SOCKET, SO_LINGER, (void *) &linger,
|
| - sizeof(linger)) ||
|
| - bind(sock, &so.lsa.u.sa, so.lsa.len) != 0 ||
|
| - listen(sock, 100) != 0) {
|
| - closesocket(sock);
|
| - cry(fc(ctx), "%s: cannot bind to %.*s: %s", __func__,
|
| - vec.len, vec.ptr, strerror(ERRNO));
|
| - success = 0;
|
| - } else if ((listener = (struct socket *)
|
| - calloc(1, sizeof(*listener))) == NULL) {
|
| - closesocket(sock);
|
| - cry(fc(ctx), "%s: %s", __func__, strerror(ERRNO));
|
| - success = 0;
|
| - } else {
|
| - *listener = so;
|
| - listener->sock = sock;
|
| - set_close_on_exec(listener->sock);
|
| - listener->next = ctx->listening_sockets;
|
| - ctx->listening_sockets = listener;
|
| - }
|
| - }
|
| -
|
| - if (!success) {
|
| - close_all_listening_sockets(ctx);
|
| - }
|
| -
|
| - return success;
|
| -}
|
| -
|
| -static void log_header(const struct mg_connection *conn, const char *header,
|
| - FILE *fp) {
|
| - const char *header_value;
|
| -
|
| - if ((header_value = mg_get_header(conn, header)) == NULL) {
|
| - (void) fprintf(fp, "%s", " -");
|
| - } else {
|
| - (void) fprintf(fp, " \"%s\"", header_value);
|
| - }
|
| -}
|
| -
|
| -static void log_access(const struct mg_connection *conn) {
|
| - const struct mg_request_info *ri;
|
| - FILE *fp;
|
| - char date[64];
|
| -
|
| - fp = conn->ctx->config[ACCESS_LOG_FILE] == NULL ? NULL :
|
| - mg_fopen(conn->ctx->config[ACCESS_LOG_FILE], "a+");
|
| -
|
| - if (fp == NULL)
|
| - return;
|
| -
|
| - (void) strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z",
|
| - localtime(&conn->birth_time));
|
| -
|
| - ri = &conn->request_info;
|
| -
|
| - flockfile(fp);
|
| -
|
| - (void) fprintf(fp,
|
| - "%s - %s [%s] \"%s %s HTTP/%s\" %d %" INT64_FMT,
|
| - inet_ntoa(conn->client.rsa.u.sin.sin_addr),
|
| - ri->remote_user == NULL ? "-" : ri->remote_user,
|
| - date,
|
| - ri->request_method ? ri->request_method : "-",
|
| - ri->uri ? ri->uri : "-",
|
| - ri->http_version,
|
| - conn->request_info.status_code, conn->num_bytes_sent);
|
| - log_header(conn, "Referer", fp);
|
| - log_header(conn, "User-Agent", fp);
|
| - (void) fputc('\n', fp);
|
| - (void) fflush(fp);
|
| -
|
| - funlockfile(fp);
|
| - (void) fclose(fp);
|
| -}
|
| -
|
| -static int isbyte(int n) {
|
| - return n >= 0 && n <= 255;
|
| -}
|
| -
|
| -// Verify given socket address against the ACL.
|
| -// Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
|
| -static int check_acl(struct mg_context *ctx, const struct usa *usa) {
|
| - int a, b, c, d, n, mask, allowed;
|
| - char flag;
|
| - uint32_t acl_subnet, acl_mask, remote_ip;
|
| - struct vec vec;
|
| - const char *list = ctx->config[ACCESS_CONTROL_LIST];
|
| -
|
| - if (list == NULL) {
|
| - return 1;
|
| - }
|
| -
|
| - (void) memcpy(&remote_ip, &usa->u.sin.sin_addr, sizeof(remote_ip));
|
| -
|
| - // If any ACL is set, deny by default
|
| - allowed = '-';
|
| -
|
| - while ((list = next_option(list, &vec, NULL)) != NULL) {
|
| - mask = 32;
|
| -
|
| - if (sscanf(vec.ptr, "%c%d.%d.%d.%d%n", &flag, &a, &b, &c, &d, &n) != 5) {
|
| - cry(fc(ctx), "%s: subnet must be [+|-]x.x.x.x[/x]", __func__);
|
| - return -1;
|
| - } else if (flag != '+' && flag != '-') {
|
| - cry(fc(ctx), "%s: flag must be + or -: [%s]", __func__, vec.ptr);
|
| - return -1;
|
| - } else if (!isbyte(a)||!isbyte(b)||!isbyte(c)||!isbyte(d)) {
|
| - cry(fc(ctx), "%s: bad ip address: [%s]", __func__, vec.ptr);
|
| - return -1;
|
| - } else if (sscanf(vec.ptr + n, "/%d", &mask) == 0) {
|
| - // Do nothing, no mask specified
|
| - } else if (mask < 0 || mask > 32) {
|
| - cry(fc(ctx), "%s: bad subnet mask: %d [%s]", __func__, n, vec.ptr);
|
| - return -1;
|
| - }
|
| -
|
| - acl_subnet = (a << 24) | (b << 16) | (c << 8) | d;
|
| - acl_mask = mask ? 0xffffffffU << (32 - mask) : 0;
|
| -
|
| - if (acl_subnet == (ntohl(remote_ip) & acl_mask)) {
|
| - allowed = flag;
|
| - }
|
| - }
|
| -
|
| - return allowed == '+';
|
| -}
|
| -
|
| -static void add_to_set(SOCKET fd, fd_set *set, int *max_fd) {
|
| - FD_SET(fd, set);
|
| - if (fd > (SOCKET) *max_fd) {
|
| - *max_fd = (int) fd;
|
| - }
|
| -}
|
| -
|
| -#if !defined(_WIN32)
|
| -static int set_uid_option(struct mg_context *ctx) {
|
| - struct passwd *pw;
|
| - const char *uid = ctx->config[RUN_AS_USER];
|
| - int success = 0;
|
| -
|
| - if (uid == NULL) {
|
| - success = 1;
|
| - } else {
|
| - if ((pw = getpwnam(uid)) == NULL) {
|
| - cry(fc(ctx), "%s: unknown user [%s]", __func__, uid);
|
| - } else if (setgid(pw->pw_gid) == -1) {
|
| - cry(fc(ctx), "%s: setgid(%s): %s", __func__, uid, strerror(errno));
|
| - } else if (setuid(pw->pw_uid) == -1) {
|
| - cry(fc(ctx), "%s: setuid(%s): %s", __func__, uid, strerror(errno));
|
| - } else {
|
| - success = 1;
|
| - }
|
| - }
|
| -
|
| - return success;
|
| -}
|
| -#endif // !_WIN32
|
| -
|
| -#if !defined(NO_SSL)
|
| -static pthread_mutex_t *ssl_mutexes;
|
| -
|
| -static void ssl_locking_callback(int mode, int mutex_num, const char *file,
|
| - int line) {
|
| - line = 0; // Unused
|
| - file = NULL; // Unused
|
| -
|
| - if (mode & CRYPTO_LOCK) {
|
| - (void) pthread_mutex_lock(&ssl_mutexes[mutex_num]);
|
| - } else {
|
| - (void) pthread_mutex_unlock(&ssl_mutexes[mutex_num]);
|
| - }
|
| -}
|
| -
|
| -static unsigned long ssl_id_callback(void) {
|
| - return (unsigned long) pthread_self();
|
| -}
|
| -
|
| -#if !defined(NO_SSL_DL)
|
| -static int load_dll(struct mg_context *ctx, const char *dll_name,
|
| - struct ssl_func *sw) {
|
| - union {void *p; void (*fp)(void);} u;
|
| - void *dll_handle;
|
| - struct ssl_func *fp;
|
| -
|
| - if ((dll_handle = dlopen(dll_name, RTLD_LAZY)) == NULL) {
|
| - cry(fc(ctx), "%s: cannot load %s", __func__, dll_name);
|
| - return 0;
|
| - }
|
| -
|
| - for (fp = sw; fp->name != NULL; fp++) {
|
| -#ifdef _WIN32
|
| - // GetProcAddress() returns pointer to function
|
| - u.fp = (void (*)(void)) dlsym(dll_handle, fp->name);
|
| -#else
|
| - // dlsym() on UNIX returns void *. ISO C forbids casts of data pointers to
|
| - // function pointers. We need to use a union to make a cast.
|
| - u.p = dlsym(dll_handle, fp->name);
|
| -#endif // _WIN32
|
| - if (u.fp == NULL) {
|
| - cry(fc(ctx), "%s: %s: cannot find %s", __func__, dll_name, fp->name);
|
| - return 0;
|
| - } else {
|
| - fp->ptr = u.fp;
|
| - }
|
| - }
|
| -
|
| - return 1;
|
| -}
|
| -#endif // NO_SSL_DL
|
| -
|
| -// Dynamically load SSL library. Set up ctx->ssl_ctx pointer.
|
| -static int set_ssl_option(struct mg_context *ctx) {
|
| - struct mg_request_info request_info;
|
| - SSL_CTX *CTX;
|
| - int i, size;
|
| - const char *pem = ctx->config[SSL_CERTIFICATE];
|
| - const char *chain = ctx->config[SSL_CHAIN_FILE];
|
| -
|
| - if (pem == NULL) {
|
| - return 1;
|
| - }
|
| -
|
| -#if !defined(NO_SSL_DL)
|
| - if (!load_dll(ctx, SSL_LIB, ssl_sw) ||
|
| - !load_dll(ctx, CRYPTO_LIB, crypto_sw)) {
|
| - return 0;
|
| - }
|
| -#endif // NO_SSL_DL
|
| -
|
| - // Initialize SSL crap
|
| - SSL_library_init();
|
| - SSL_load_error_strings();
|
| -
|
| - if ((CTX = SSL_CTX_new(SSLv23_server_method())) == NULL) {
|
| - cry(fc(ctx), "SSL_CTX_new error: %s", ssl_error());
|
| - } else if (ctx->user_callback != NULL) {
|
| - memset(&request_info, 0, sizeof(request_info));
|
| - request_info.user_data = ctx->user_data;
|
| - ctx->user_callback(MG_INIT_SSL, (struct mg_connection *) CTX,
|
| - &request_info);
|
| - }
|
| -
|
| - if (CTX != NULL && SSL_CTX_use_certificate_file(CTX, pem,
|
| - SSL_FILETYPE_PEM) == 0) {
|
| - cry(fc(ctx), "%s: cannot open %s: %s", __func__, pem, ssl_error());
|
| - return 0;
|
| - } else if (CTX != NULL && SSL_CTX_use_PrivateKey_file(CTX, pem,
|
| - SSL_FILETYPE_PEM) == 0) {
|
| - cry(fc(ctx), "%s: cannot open %s: %s", NULL, pem, ssl_error());
|
| - return 0;
|
| - }
|
| -
|
| - if (CTX != NULL && chain != NULL &&
|
| - SSL_CTX_use_certificate_chain_file(CTX, chain) == 0) {
|
| - cry(fc(ctx), "%s: cannot open %s: %s", NULL, chain, ssl_error());
|
| - return 0;
|
| - }
|
| -
|
| - // Initialize locking callbacks, needed for thread safety.
|
| - // http://www.openssl.org/support/faq.html#PROG1
|
| - size = sizeof(pthread_mutex_t) * CRYPTO_num_locks();
|
| - if ((ssl_mutexes = (pthread_mutex_t *) malloc((size_t)size)) == NULL) {
|
| - cry(fc(ctx), "%s: cannot allocate mutexes: %s", __func__, ssl_error());
|
| - return 0;
|
| - }
|
| -
|
| - for (i = 0; i < CRYPTO_num_locks(); i++) {
|
| - pthread_mutex_init(&ssl_mutexes[i], NULL);
|
| - }
|
| -
|
| - CRYPTO_set_locking_callback(&ssl_locking_callback);
|
| - CRYPTO_set_id_callback(&ssl_id_callback);
|
| -
|
| - // Done with everything. Save the context.
|
| - ctx->ssl_ctx = CTX;
|
| -
|
| - return 1;
|
| -}
|
| -
|
| -static void uninitialize_ssl(struct mg_context *ctx) {
|
| - int i;
|
| - if (ctx->ssl_ctx != NULL) {
|
| - CRYPTO_set_locking_callback(NULL);
|
| - for (i = 0; i < CRYPTO_num_locks(); i++) {
|
| - pthread_mutex_destroy(&ssl_mutexes[i]);
|
| - }
|
| - CRYPTO_set_locking_callback(NULL);
|
| - CRYPTO_set_id_callback(NULL);
|
| - }
|
| -}
|
| -#endif // !NO_SSL
|
| -
|
| -static int set_gpass_option(struct mg_context *ctx) {
|
| - struct mgstat mgstat;
|
| - const char *path = ctx->config[GLOBAL_PASSWORDS_FILE];
|
| - return path == NULL || mg_stat(path, &mgstat) == 0;
|
| -}
|
| -
|
| -static int set_acl_option(struct mg_context *ctx) {
|
| - struct usa fake;
|
| - return check_acl(ctx, &fake) != -1;
|
| -}
|
| -
|
| -static void reset_per_request_attributes(struct mg_connection *conn) {
|
| - struct mg_request_info *ri = &conn->request_info;
|
| -
|
| - // Reset request info attributes. DO NOT TOUCH is_ssl, remote_ip, remote_port
|
| - if (ri->remote_user != NULL) {
|
| - free((void *) ri->remote_user);
|
| - }
|
| - ri->remote_user = ri->request_method = ri->uri = ri->http_version = NULL;
|
| - ri->num_headers = 0;
|
| - ri->status_code = -1;
|
| -
|
| - conn->num_bytes_sent = conn->consumed_content = 0;
|
| - conn->content_len = -1;
|
| - conn->request_len = conn->data_len = 0;
|
| -}
|
| -
|
| -static void close_socket_gracefully(SOCKET sock) {
|
| - char buf[BUFSIZ];
|
| - int n;
|
| -
|
| - // Send FIN to the client
|
| - (void) shutdown(sock, SHUT_WR);
|
| - set_non_blocking_mode(sock);
|
| -
|
| - // Read and discard pending data. If we do not do that and close the
|
| - // socket, the data in the send buffer may be discarded. This
|
| - // behaviour is seen on Windows, when client keeps sending data
|
| - // when server decide to close the connection; then when client
|
| - // does recv() it gets no data back.
|
| - do {
|
| - n = pull(NULL, sock, NULL, buf, sizeof(buf));
|
| - } while (n > 0);
|
| -
|
| - // Now we know that our FIN is ACK-ed, safe to close
|
| - (void) closesocket(sock);
|
| -}
|
| -
|
| -static void close_connection(struct mg_connection *conn) {
|
| - if (conn->ssl) {
|
| - SSL_free(conn->ssl);
|
| - conn->ssl = NULL;
|
| - }
|
| -
|
| - if (conn->client.sock != INVALID_SOCKET) {
|
| - close_socket_gracefully(conn->client.sock);
|
| - }
|
| -}
|
| -
|
| -static void discard_current_request_from_buffer(struct mg_connection *conn) {
|
| - int buffered_len, body_len;
|
| -
|
| - buffered_len = conn->data_len - conn->request_len;
|
| - assert(buffered_len >= 0);
|
| -
|
| - if (conn->content_len == -1) {
|
| - body_len = 0;
|
| - } else if (conn->content_len < (int64_t) buffered_len) {
|
| - body_len = (int) conn->content_len;
|
| - } else {
|
| - body_len = buffered_len;
|
| - }
|
| -
|
| - conn->data_len -= conn->request_len + body_len;
|
| - memmove(conn->buf, conn->buf + conn->request_len + body_len,
|
| - (size_t) conn->data_len);
|
| -}
|
| -
|
| -static int parse_url(const char *url, char *host, int *port) {
|
| - int len;
|
| -
|
| - if (sscanf(url, "%*[htps]://%1024[^:]:%d%n", host, port, &len) == 2 ||
|
| - sscanf(url, "%1024[^:]:%d%n", host, port, &len) == 2) {
|
| - } else if (sscanf(url, "%*[htps]://%1024[^/]%n", host, &len) == 1) {
|
| - *port = 80;
|
| - } else {
|
| - sscanf(url, "%1024[^/]%n", host, &len);
|
| - *port = 80;
|
| - }
|
| - DEBUG_TRACE(("Host:%s, port:%d", host, *port));
|
| -
|
| - return len;
|
| -}
|
| -
|
| -static void handle_proxy_request(struct mg_connection *conn) {
|
| - struct mg_request_info *ri = &conn->request_info;
|
| - char host[1025], buf[BUFSIZ];
|
| - int port, is_ssl, len, i, n;
|
| -
|
| - DEBUG_TRACE(("URL: %s", ri->uri));
|
| - if (ri->uri == NULL ||
|
| - ri->uri[0] == '/' ||
|
| - (len = parse_url(ri->uri, host, &port)) == 0) {
|
| - return;
|
| - }
|
| -
|
| - if (conn->peer == NULL) {
|
| - is_ssl = !strcmp(ri->request_method, "CONNECT");
|
| - if ((conn->peer = mg_connect(conn, host, port, is_ssl)) == NULL) {
|
| - return;
|
| - }
|
| - conn->peer->client.is_ssl = is_ssl;
|
| - }
|
| -
|
| - // Forward client's request to the target
|
| - mg_printf(conn->peer, "%s %s HTTP/%s\r\n", ri->request_method, ri->uri + len,
|
| - ri->http_version);
|
| -
|
| - // And also all headers. TODO(lsm): anonymize!
|
| - for (i = 0; i < ri->num_headers; i++) {
|
| - mg_printf(conn->peer, "%s: %s\r\n", ri->http_headers[i].name,
|
| - ri->http_headers[i].value);
|
| - }
|
| - // End of headers, final newline
|
| - mg_write(conn->peer, "\r\n", 2);
|
| -
|
| - // Read and forward body data if any
|
| - if (!strcmp(ri->request_method, "POST")) {
|
| - forward_body_data(conn, NULL, conn->peer->client.sock, conn->peer->ssl);
|
| - }
|
| -
|
| - // Read data from the target and forward it to the client
|
| - while ((n = pull(NULL, conn->peer->client.sock, conn->peer->ssl,
|
| - buf, sizeof(buf))) > 0) {
|
| - if (mg_write(conn, buf, (size_t)n) != n) {
|
| - break;
|
| - }
|
| - }
|
| -
|
| - if (!conn->peer->client.is_ssl) {
|
| - close_connection(conn->peer);
|
| - free(conn->peer);
|
| - conn->peer = NULL;
|
| - }
|
| -}
|
| -
|
| -static int is_valid_uri(const char *uri) {
|
| - // Conform to http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
|
| - // URI can be an asterisk (*) or should start with slash.
|
| - return (uri[0] == '/' || (uri[0] == '*' && uri[1] == '\0'));
|
| -}
|
| -
|
| -static void process_new_connection(struct mg_connection *conn) {
|
| - struct mg_request_info *ri = &conn->request_info;
|
| - int keep_alive_enabled;
|
| - const char *cl;
|
| -
|
| - keep_alive_enabled = !strcmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes");
|
| -
|
| - do {
|
| - reset_per_request_attributes(conn);
|
| -
|
| - // If next request is not pipelined, read it in
|
| - if ((conn->request_len = get_request_len(conn->buf, conn->data_len)) == 0) {
|
| - conn->request_len = read_request(NULL, conn->client.sock, conn->ssl,
|
| - conn->buf, conn->buf_size, &conn->data_len);
|
| - }
|
| - assert(conn->data_len >= conn->request_len);
|
| - if (conn->request_len == 0 && conn->data_len == conn->buf_size) {
|
| - send_http_error(conn, 413, "Request Too Large", "");
|
| - return;
|
| - } if (conn->request_len <= 0) {
|
| - return; // Remote end closed the connection
|
| - }
|
| -
|
| - // Nul-terminate the request cause parse_http_request() uses sscanf
|
| - conn->buf[conn->request_len - 1] = '\0';
|
| - if (!parse_http_request(conn->buf, ri) ||
|
| - (!conn->client.is_proxy && !is_valid_uri(ri->uri))) {
|
| - // Do not put garbage in the access log, just send it back to the client
|
| - send_http_error(conn, 400, "Bad Request",
|
| - "Cannot parse HTTP request: [%.*s]", conn->data_len, conn->buf);
|
| - } else if (strcmp(ri->http_version, "1.0") &&
|
| - strcmp(ri->http_version, "1.1")) {
|
| - // Request seems valid, but HTTP version is strange
|
| - send_http_error(conn, 505, "HTTP version not supported", "");
|
| - log_access(conn);
|
| - } else {
|
| - // Request is valid, handle it
|
| - cl = get_header(ri, "Content-Length");
|
| - conn->content_len = cl == NULL ? -1 : strtoll(cl, NULL, 10);
|
| - conn->birth_time = time(NULL);
|
| - if (conn->client.is_proxy) {
|
| - handle_proxy_request(conn);
|
| - } else {
|
| - handle_request(conn);
|
| - }
|
| - log_access(conn);
|
| - discard_current_request_from_buffer(conn);
|
| - }
|
| - // conn->peer is not NULL only for SSL-ed proxy connections
|
| - } while (conn->ctx->stop_flag == 0 &&
|
| - (conn->peer || (keep_alive_enabled && should_keep_alive(conn))));
|
| -}
|
| -
|
| -// Worker threads take accepted socket from the queue
|
| -static int consume_socket(struct mg_context *ctx, struct socket *sp) {
|
| - (void) pthread_mutex_lock(&ctx->mutex);
|
| - DEBUG_TRACE(("going idle"));
|
| -
|
| - // If the queue is empty, wait. We're idle at this point.
|
| - while (ctx->sq_head == ctx->sq_tail && ctx->stop_flag == 0) {
|
| - pthread_cond_wait(&ctx->sq_full, &ctx->mutex);
|
| - }
|
| -
|
| - // If we're stopping, sq_head may be equal to sq_tail.
|
| - if (ctx->sq_head > ctx->sq_tail) {
|
| - // Copy socket from the queue and increment tail
|
| - *sp = ctx->queue[ctx->sq_tail % ARRAY_SIZE(ctx->queue)];
|
| - ctx->sq_tail++;
|
| - DEBUG_TRACE(("grabbed socket %d, going busy", sp->sock));
|
| -
|
| - // Wrap pointers if needed
|
| - while (ctx->sq_tail > (int) ARRAY_SIZE(ctx->queue)) {
|
| - ctx->sq_tail -= ARRAY_SIZE(ctx->queue);
|
| - ctx->sq_head -= ARRAY_SIZE(ctx->queue);
|
| - }
|
| - }
|
| -
|
| - (void) pthread_cond_signal(&ctx->sq_empty);
|
| - (void) pthread_mutex_unlock(&ctx->mutex);
|
| -
|
| - return !ctx->stop_flag;
|
| -}
|
| -
|
| -static void worker_thread(struct mg_context *ctx) {
|
| - struct mg_connection *conn;
|
| - int buf_size = atoi(ctx->config[MAX_REQUEST_SIZE]);
|
| -
|
| - conn = (struct mg_connection *) calloc(1, sizeof(*conn) + buf_size);
|
| - conn->buf_size = buf_size;
|
| - conn->buf = (char *) (conn + 1);
|
| - assert(conn != NULL);
|
| -
|
| - // Call consume_socket() even when ctx->stop_flag > 0, to let it signal
|
| - // sq_empty condvar to wake up the master waiting in produce_socket()
|
| - while (consume_socket(ctx, &conn->client)) {
|
| - conn->birth_time = time(NULL);
|
| - conn->ctx = ctx;
|
| -
|
| - // Fill in IP, port info early so even if SSL setup below fails,
|
| - // error handler would have the corresponding info.
|
| - // Thanks to Johannes Winkelmann for the patch.
|
| - conn->request_info.remote_port = ntohs(conn->client.rsa.u.sin.sin_port);
|
| - memcpy(&conn->request_info.remote_ip,
|
| - &conn->client.rsa.u.sin.sin_addr.s_addr, 4);
|
| - conn->request_info.remote_ip = ntohl(conn->request_info.remote_ip);
|
| - conn->request_info.is_ssl = conn->client.is_ssl;
|
| -
|
| - if (!conn->client.is_ssl ||
|
| - (conn->client.is_ssl && sslize(conn, SSL_accept))) {
|
| - process_new_connection(conn);
|
| - }
|
| -
|
| - close_connection(conn);
|
| - }
|
| - free(conn);
|
| -
|
| - // Signal master that we're done with connection and exiting
|
| - (void) pthread_mutex_lock(&ctx->mutex);
|
| - ctx->num_threads--;
|
| - (void) pthread_cond_signal(&ctx->cond);
|
| - assert(ctx->num_threads >= 0);
|
| - (void) pthread_mutex_unlock(&ctx->mutex);
|
| -
|
| - DEBUG_TRACE(("exiting"));
|
| -}
|
| -
|
| -// Master thread adds accepted socket to a queue
|
| -static void produce_socket(struct mg_context *ctx, const struct socket *sp) {
|
| - (void) pthread_mutex_lock(&ctx->mutex);
|
| -
|
| - // If the queue is full, wait
|
| - while (ctx->stop_flag == 0 &&
|
| - ctx->sq_head - ctx->sq_tail >= (int) ARRAY_SIZE(ctx->queue)) {
|
| - (void) pthread_cond_wait(&ctx->sq_empty, &ctx->mutex);
|
| - }
|
| -
|
| - if (ctx->sq_head - ctx->sq_tail < (int) ARRAY_SIZE(ctx->queue)) {
|
| - // Copy socket to the queue and increment head
|
| - ctx->queue[ctx->sq_head % ARRAY_SIZE(ctx->queue)] = *sp;
|
| - ctx->sq_head++;
|
| - DEBUG_TRACE(("queued socket %d", sp->sock));
|
| - }
|
| -
|
| - (void) pthread_cond_signal(&ctx->sq_full);
|
| - (void) pthread_mutex_unlock(&ctx->mutex);
|
| -}
|
| -
|
| -static void accept_new_connection(const struct socket *listener,
|
| - struct mg_context *ctx) {
|
| - struct socket accepted;
|
| - int allowed;
|
| -
|
| - accepted.rsa.len = sizeof(accepted.rsa.u.sin);
|
| - accepted.lsa = listener->lsa;
|
| - accepted.sock = accept(listener->sock, &accepted.rsa.u.sa, &accepted.rsa.len);
|
| - if (accepted.sock != INVALID_SOCKET) {
|
| - allowed = check_acl(ctx, &accepted.rsa);
|
| - if (allowed) {
|
| - // Put accepted socket structure into the queue
|
| - DEBUG_TRACE(("accepted socket %d", accepted.sock));
|
| - accepted.is_ssl = listener->is_ssl;
|
| - accepted.is_proxy = listener->is_proxy;
|
| - produce_socket(ctx, &accepted);
|
| - } else {
|
| - cry(fc(ctx), "%s: %s is not allowed to connect",
|
| - __func__, inet_ntoa(accepted.rsa.u.sin.sin_addr));
|
| - (void) closesocket(accepted.sock);
|
| - }
|
| - }
|
| -}
|
| -
|
| -static void master_thread(struct mg_context *ctx) {
|
| - fd_set read_set;
|
| - struct timeval tv;
|
| - struct socket *sp;
|
| - int max_fd;
|
| -
|
| - while (ctx->stop_flag == 0) {
|
| - FD_ZERO(&read_set);
|
| - max_fd = -1;
|
| -
|
| - // Add listening sockets to the read set
|
| - for (sp = ctx->listening_sockets; sp != NULL; sp = sp->next) {
|
| - add_to_set(sp->sock, &read_set, &max_fd);
|
| - }
|
| -
|
| - tv.tv_sec = 0;
|
| - tv.tv_usec = 200 * 1000;
|
| -
|
| - if (select(max_fd + 1, &read_set, NULL, NULL, &tv) < 0) {
|
| -#ifdef _WIN32
|
| - // On windows, if read_set and write_set are empty,
|
| - // select() returns "Invalid parameter" error
|
| - // (at least on my Windows XP Pro). So in this case, we sleep here.
|
| - sleep(1);
|
| -#endif // _WIN32
|
| - } else {
|
| - for (sp = ctx->listening_sockets; sp != NULL; sp = sp->next) {
|
| - if (ctx->stop_flag == 0 && FD_ISSET(sp->sock, &read_set)) {
|
| - accept_new_connection(sp, ctx);
|
| - }
|
| - }
|
| - }
|
| - }
|
| - DEBUG_TRACE(("stopping workers"));
|
| -
|
| - // Stop signal received: somebody called mg_stop. Quit.
|
| - close_all_listening_sockets(ctx);
|
| -
|
| - // Wakeup workers that are waiting for connections to handle.
|
| - pthread_cond_broadcast(&ctx->sq_full);
|
| -
|
| - // Wait until all threads finish
|
| - (void) pthread_mutex_lock(&ctx->mutex);
|
| - while (ctx->num_threads > 0) {
|
| - (void) pthread_cond_wait(&ctx->cond, &ctx->mutex);
|
| - }
|
| - (void) pthread_mutex_unlock(&ctx->mutex);
|
| -
|
| - // All threads exited, no sync is needed. Destroy mutex and condvars
|
| - (void) pthread_mutex_destroy(&ctx->mutex);
|
| - (void) pthread_cond_destroy(&ctx->cond);
|
| - (void) pthread_cond_destroy(&ctx->sq_empty);
|
| - (void) pthread_cond_destroy(&ctx->sq_full);
|
| -
|
| -#if !defined(NO_SSL)
|
| - uninitialize_ssl(ctx);
|
| -#endif
|
| -
|
| - // Signal mg_stop() that we're done
|
| - ctx->stop_flag = 2;
|
| -
|
| - DEBUG_TRACE(("exiting"));
|
| -}
|
| -
|
| -static void free_context(struct mg_context *ctx) {
|
| - int i;
|
| -
|
| - // Deallocate config parameters
|
| - for (i = 0; i < NUM_OPTIONS; i++) {
|
| - if (ctx->config[i] != NULL)
|
| - free(ctx->config[i]);
|
| - }
|
| -
|
| - // Deallocate SSL context
|
| - if (ctx->ssl_ctx != NULL) {
|
| - SSL_CTX_free(ctx->ssl_ctx);
|
| - }
|
| -#ifndef NO_SSL
|
| - if (ssl_mutexes != NULL) {
|
| - free(ssl_mutexes);
|
| - }
|
| -#endif // !NO_SSL
|
| -
|
| - // Deallocate context itself
|
| - free(ctx);
|
| -}
|
| -
|
| -void mg_stop(struct mg_context *ctx) {
|
| - ctx->stop_flag = 1;
|
| -
|
| - // Wait until mg_fini() stops
|
| - while (ctx->stop_flag != 2) {
|
| - (void) sleep(0);
|
| - }
|
| - free_context(ctx);
|
| -
|
| -#if defined(_WIN32) && !defined(__SYMBIAN32__)
|
| - (void) WSACleanup();
|
| -#endif // _WIN32
|
| -}
|
| -
|
| -struct mg_context *mg_start(mg_callback_t user_callback, void *user_data,
|
| - const char **options) {
|
| - struct mg_context *ctx;
|
| - const char *name, *value, *default_value;
|
| - int i;
|
| -
|
| -#if defined(_WIN32) && !defined(__SYMBIAN32__)
|
| - WSADATA data;
|
| - WSAStartup(MAKEWORD(2,2), &data);
|
| -#endif // _WIN32
|
| -
|
| - // Allocate context and initialize reasonable general case defaults.
|
| - // TODO(lsm): do proper error handling here.
|
| - ctx = (struct mg_context *) calloc(1, sizeof(*ctx));
|
| - ctx->user_callback = user_callback;
|
| - ctx->user_data = user_data;
|
| -
|
| - while (options && (name = *options++) != NULL) {
|
| - if ((i = get_option_index(name)) == -1) {
|
| - cry(fc(ctx), "Invalid option: %s", name);
|
| - free_context(ctx);
|
| - return NULL;
|
| - } else if ((value = *options++) == NULL) {
|
| - cry(fc(ctx), "%s: option value cannot be NULL", name);
|
| - free_context(ctx);
|
| - return NULL;
|
| - }
|
| - ctx->config[i] = mg_strdup(value);
|
| - DEBUG_TRACE(("[%s] -> [%s]", name, value));
|
| - }
|
| -
|
| - // Set default value if needed
|
| - for (i = 0; config_options[i * ENTRIES_PER_CONFIG_OPTION] != NULL; i++) {
|
| - default_value = config_options[i * ENTRIES_PER_CONFIG_OPTION + 2];
|
| - if (ctx->config[i] == NULL && default_value != NULL) {
|
| - ctx->config[i] = mg_strdup(default_value);
|
| - DEBUG_TRACE(("Setting default: [%s] -> [%s]",
|
| - config_options[i * ENTRIES_PER_CONFIG_OPTION + 1],
|
| - default_value));
|
| - }
|
| - }
|
| -
|
| - // NOTE(lsm): order is important here. SSL certificates must
|
| - // be initialized before listening ports. UID must be set last.
|
| - if (!set_gpass_option(ctx) ||
|
| -#if !defined(NO_SSL)
|
| - !set_ssl_option(ctx) ||
|
| -#endif
|
| - !set_ports_option(ctx) ||
|
| -#if !defined(_WIN32)
|
| - !set_uid_option(ctx) ||
|
| -#endif
|
| - !set_acl_option(ctx)) {
|
| - free_context(ctx);
|
| - return NULL;
|
| - }
|
| -
|
| -#if !defined(_WIN32) && !defined(__SYMBIAN32__)
|
| - // Ignore SIGPIPE signal, so if browser cancels the request, it
|
| - // won't kill the whole process.
|
| - (void) signal(SIGPIPE, SIG_IGN);
|
| -#endif // !_WIN32
|
| -
|
| - (void) pthread_mutex_init(&ctx->mutex, NULL);
|
| - (void) pthread_cond_init(&ctx->cond, NULL);
|
| - (void) pthread_cond_init(&ctx->sq_empty, NULL);
|
| - (void) pthread_cond_init(&ctx->sq_full, NULL);
|
| -
|
| - // Start master (listening) thread
|
| - start_thread(ctx, (mg_thread_func_t) master_thread, ctx);
|
| -
|
| - // Start worker threads
|
| - for (i = 0; i < atoi(ctx->config[NUM_THREADS]); i++) {
|
| - if (start_thread(ctx, (mg_thread_func_t) worker_thread, ctx) != 0) {
|
| - cry(fc(ctx), "Cannot start worker thread: %d", ERRNO);
|
| - } else {
|
| - ctx->num_threads++;
|
| - }
|
| - }
|
| -
|
| - return ctx;
|
| -}
|
|
|
Chromium Code Reviews
Issue 23526047:
Delete old chromedriver code, and remove mongoose webserver. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src