Index: third_party/tlslite/tlslite/X509CertChain.py |
diff --git a/third_party/tlslite/tlslite/X509CertChain.py b/third_party/tlslite/tlslite/X509CertChain.py |
index 6bb503e43eefa9f01f9c7ec89cb9393f35b1148a..607c127b55924417b898f51943509048a005f87e 100644 |
--- a/third_party/tlslite/tlslite/X509CertChain.py |
+++ b/third_party/tlslite/tlslite/X509CertChain.py |
@@ -1,6 +1,7 @@ |
"""Class representing an X.509 certificate chain.""" |
from utils import cryptomath |
+from X509 import X509 |
class X509CertChain: |
"""This class represents a chain of X.509 certificates. |
@@ -24,6 +25,66 @@ class X509CertChain: |
else: |
self.x509List = [] |
+ def parseChain(self, s): |
+ """Parse a PEM-encoded X.509 certificate file chain file. |
+ |
+ @type s: str |
Nico
2012/02/29 02:05:31
Looks like this is still called s
Ryan Sleevi
2012/02/29 19:56:27
This parameter matches the correlated X509.parse(s
|
+ @param s: A PEM-encoded (eg: Base64) X.509 certificate file, with every |
+ certificate wrapped within "-----BEGIN CERTIFICATE-----" and |
+ "-----END CERTIFICATE-----" tags). Extraneous data outside such tags, |
+ such as human readable representations, will be ignored. |
+ """ |
+ |
+ class PEMIterator(object): |
+ """Simple iterator over PEM-encoded certificates within a string. |
+ |
+ @type data: string |
+ @ivar data: A string containing PEM-encoded (Base64) certificates, |
+ with every certificate wrapped within "-----BEGIN CERTIFICATE-----" |
+ and "-----END CERTIFICATE-----" tags). Extraneous data outside such |
+ tags, such as human readable representations, will be ignored. |
+ |
+ @type index: integer |
+ @ivar index: The current offset within data to begin iterating from. |
+ """ |
+ |
+ _CERTIFICATE_HEADER = "----BEGIN CERTIFICATE-----" |
+ """The PEM encoding block header for X.509 certificates.""" |
+ |
+ _CERTIFICATE_FOOTER = "----END CERTIFICATE-----" |
+ """The PEM encoding block footer for X.509 certificates.""" |
+ |
+ def __init__(self, s): |
+ self.data = s |
+ self.index = 0 |
+ |
+ def __iter__(self): |
+ return self |
+ |
+ def next(self): |
+ """Iterates and returns the next L{tlslite.X509.X509} |
+ certificate in data. |
+ |
+ @rtype tlslite.X509.X509 |
+ """ |
+ |
+ self.index = self.data.find(self._CERTIFICATE_HEADER, |
+ self.index) |
+ if self.index == -1: |
+ raise StopIteration |
+ end = self.data.find(self._CERTIFICATE_FOOTER, self.index) |
+ if end == -1: |
+ raise StopIteration |
+ |
+ certStr = self.data[self.index+len(self._CERTIFICATE_HEADER) : |
+ end] |
+ self.index = end + len(self._CERTIFICATE_FOOTER) |
+ bytes = cryptomath.base64ToBytes(certStr) |
+ return X509().parseBinary(bytes) |
+ |
+ self.x509List = list(PEMIterator(s)) |
+ return self |
+ |
def getNumCerts(self): |
"""Get the number of certificates in this chain. |