class Certificate:
digest = "md5"
- cert = None
- issuerKey = None
- issuerSubject = None
- parent = None
+# x509 = None
+# issuerKey = None
+# issuerSubject = None
+# parent = None
isCA = None # will be a boolean once set
separator="-----parent-----"
# @param isCA If !=None, set whether this cert is for a CA
def __init__(self, lifeDays=1825, create=False, subject=None, string=None, filename=None, isCA=None):
+ # these used to be defined in the class !
+ self.x509 = None
+ self.issuerKey = None
+ self.issuerSubject = None
+ self.parent = None
+
self.data = {}
if create or subject:
self.create(lifeDays)
# Create a blank X509 certificate and store it in this object.
def create(self, lifeDays=1825):
- self.cert = crypto.X509()
+ self.x509 = crypto.X509()
# FIXME: Use different serial #s
- self.cert.set_serial_number(3)
- self.cert.gmtime_adj_notBefore(0) # 0 means now
- self.cert.gmtime_adj_notAfter(lifeDays*60*60*24) # five years is default
- self.cert.set_version(2) # x509v3 so it can have extensions
+ self.x509.set_serial_number(3)
+ self.x509.gmtime_adj_notBefore(0) # 0 means now
+ self.x509.gmtime_adj_notAfter(lifeDays*60*60*24) # five years is default
+ self.x509.set_version(2) # x509v3 so it can have extensions
##
# certificate object.
def load_from_pyopenssl_x509(self, x509):
- self.cert = x509
+ self.x509 = x509
##
# Load the certificate from a string
else:
parts = string.split(Certificate.separator, 1)
- self.cert = crypto.load_certificate(crypto.FILETYPE_PEM, parts[0])
+ self.x509 = crypto.load_certificate(crypto.FILETYPE_PEM, parts[0])
# if there are more certs, then create a parent and let the parent load
# itself from the remainder of the string
# @param save_parents If save_parents==True, then also save the parent certificates.
def save_to_string(self, save_parents=True):
- string = crypto.dump_certificate(crypto.FILETYPE_PEM, self.cert)
+ string = crypto.dump_certificate(crypto.FILETYPE_PEM, self.x509)
if save_parents and self.parent:
string = string + self.parent.save_to_string(save_parents)
return string
self.issuerReq = req
if cert:
# if a cert was supplied, then get the subject from the cert
- subject = cert.cert.get_subject()
+ subject = cert.x509.get_subject()
assert(subject)
self.issuerSubject = subject
# Get the issuer name
def get_issuer(self, which="CN"):
- x = self.cert.get_issuer()
+ x = self.x509.get_issuer()
return getattr(x, which)
##
setattr(subj, key, name[key])
else:
setattr(subj, "CN", name)
- self.cert.set_subject(subj)
+ self.x509.set_subject(subj)
##
# Get the subject name of the certificate
def get_subject(self, which="CN"):
- x = self.cert.get_subject()
+ x = self.x509.get_subject()
return getattr(x, which)
##
# Get a pretty-print subject name of the certificate
-
- def get_printable_subject(self):
- x = self.cert.get_subject()
- return "[ OU: %s, CN: %s, SubjectAltName: %s ]" % (getattr(x, "OU"), getattr(x, "CN"), self.get_data())
+ # let's try to make this a little more usable as is makes logs hairy
+ pretty_fields = ['email']
+ def filter_chunk(self, chunk):
+ for field in self.pretty_fields:
+ if field in chunk:
+ return " "+chunk
+
+ def pretty_cert(self):
+ x = self.x509.get_subject()
+ ou = getattr(x, "OU")
+ cn = getattr(x, "CN")
+ data = self.get_data(field='subjectAltName')
+ message = "[Cert."
+ if ou: message += " OU: {}".format(ou)
+ if cn: message += " CN: {}".format(cn)
+ if data:
+ message += " SubjectAltName:"
+ counter = 0
+ filtered = [self.filter_chunk(chunk) for chunk in data.split()]
+ message += " ".join( [f for f in filtered if f])
+ omitted = len ([f for f in filtered if not f])
+ if omitted:
+ message += "..+{} omitted".format(omitted)
+ message += "]"
+ return message
##
# Get the public key of the certificate.
def set_pubkey(self, key):
assert(isinstance(key, Keypair))
- self.cert.set_pubkey(key.get_openssl_pkey())
+ self.x509.set_pubkey(key.get_openssl_pkey())
##
# Get the public key of the certificate.
def get_pubkey(self):
m2x509 = X509.load_cert_string(self.save_to_string())
pkey = Keypair()
- pkey.key = self.cert.get_pubkey()
+ pkey.key = self.x509.get_pubkey()
pkey.m2key = m2x509.get_pubkey()
return pkey
# raise "Cannot add extension %s which had val %s with new val %s" % (name, oldExtVal, value)
ext = crypto.X509Extension (name, critical, value)
- self.cert.add_extensions([ext])
+ self.x509.add_extensions([ext])
##
# Get an X509 extension from the certificate
def sign(self):
logger.debug('certificate.sign')
- assert self.cert != None
+ assert self.x509 != None
assert self.issuerSubject != None
assert self.issuerKey != None
- self.cert.set_issuer(self.issuerSubject)
- self.cert.sign(self.issuerKey.get_openssl_pkey(), self.digest)
+ self.x509.set_issuer(self.issuerSubject)
+ self.x509.sign(self.issuerKey.get_openssl_pkey(), self.digest)
##
# Verify the authenticity of a certificate.
# XXX alternatively, if openssl has been patched, do the much simpler:
# try:
- # self.cert.verify(pkey.get_openssl_key())
+ # self.x509.verify(pkey.get_openssl_key())
# return 1
# except:
# return 0
# until a certificate is found that is signed by a trusted root.
# verify expiration time
- if self.cert.has_expired():
+ if self.x509.has_expired():
if debug_verify_chain:
- logger.debug("verify_chain: NO, Certificate %s has expired" % self.get_printable_subject())
- raise CertExpired(self.get_printable_subject(), "client cert")
+ logger.debug("verify_chain: NO, Certificate %s has expired" % self.pretty_cert())
+ raise CertExpired(self.pretty_cert(), "client cert")
# if this cert is signed by a trusted_cert, then we are set
for trusted_cert in trusted_certs:
if self.is_signed_by_cert(trusted_cert):
# verify expiration of trusted_cert ?
- if not trusted_cert.cert.has_expired():
+ if not trusted_cert.x509.has_expired():
if debug_verify_chain:
logger.debug("verify_chain: YES. Cert %s signed by trusted cert %s"%(
- self.get_printable_subject(), trusted_cert.get_printable_subject()))
+ self.pretty_cert(), trusted_cert.pretty_cert()))
return trusted_cert
else:
if debug_verify_chain:
logger.debug("verify_chain: NO. Cert %s is signed by trusted_cert %s, but that signer is expired..."%(
- self.get_printable_subject(),trusted_cert.get_printable_subject()))
- raise CertExpired(self.get_printable_subject()," signer trusted_cert %s"%trusted_cert.get_printable_subject())
+ self.pretty_cert(),trusted_cert.pretty_cert()))
+ raise CertExpired(self.pretty_cert()," signer trusted_cert %s"%trusted_cert.pretty_cert())
# if there is no parent, then no way to verify the chain
if not self.parent:
if debug_verify_chain:
logger.debug("verify_chain: NO. %s has no parent and issuer %s is not in %d trusted roots"%\
- (self.get_printable_subject(), self.get_issuer(), len(trusted_certs)))
- raise CertMissingParent(self.get_printable_subject() + \
+ (self.pretty_cert(), self.get_issuer(), len(trusted_certs)))
+ raise CertMissingParent(self.pretty_cert() + \
": Issuer %s is not one of the %d trusted roots, and cert has no parent." %\
(self.get_issuer(), len(trusted_certs)))
if not self.is_signed_by_cert(self.parent):
if debug_verify_chain:
logger.debug("verify_chain: NO. %s is not signed by parent %s, but by %s"%\
- (self.get_printable_subject(),
- self.parent.get_printable_subject(),
+ (self.pretty_cert(),
+ self.parent.pretty_cert(),
self.get_issuer()))
raise CertNotSignedByParent("%s: Parent %s, issuer %s"\
- % (self.get_printable_subject(),
- self.parent.get_printable_subject(),
+ % (self.pretty_cert(),
+ self.parent.pretty_cert(),
self.get_issuer()))
# Confirm that the parent is a CA. Only CAs can be trusted as
# extension and hope there are no other basicConstraints
if not self.parent.isCA and not (self.parent.get_extension('basicConstraints') == 'CA:TRUE'):
logger.warn("verify_chain: cert %s's parent %s is not a CA" % \
- (self.get_printable_subject(), self.parent.get_printable_subject()))
- raise CertNotSignedByParent("%s: Parent %s not a CA" % (self.get_printable_subject(),
- self.parent.get_printable_subject()))
+ (self.pretty_cert(), self.parent.pretty_cert()))
+ raise CertNotSignedByParent("%s: Parent %s not a CA" % (self.pretty_cert(),
+ self.parent.pretty_cert()))
# if the parent isn't verified...
if debug_verify_chain:
logger.debug("verify_chain: .. %s, -> verifying parent %s"%\
- (self.get_printable_subject(),self.parent.get_printable_subject()))
+ (self.pretty_cert(),self.parent.pretty_cert()))
self.parent.verify_chain(trusted_certs)
return
### more introspection
def get_extensions(self):
# pyOpenSSL does not have a way to get extensions
- triples=[]
+ triples = []
m2x509 = X509.load_cert_string(self.save_to_string())
- nb_extensions=m2x509.get_ext_count()
+ nb_extensions = m2x509.get_ext_count()
logger.debug("X509 had %d extensions"%nb_extensions)
for i in range(nb_extensions):
ext=m2x509.get_ext_at(i)
return self.data.keys()
def get_all_datas (self):
- triples=self.get_extensions()
+ triples = self.get_extensions()
for name in self.get_data_names():
triples.append( (name,self.get_data(name),'data',) )
return triples
def dump_string (self,show_extensions=False):
result = ""
- result += "CERTIFICATE for %s\n"%self.get_printable_subject()
+ result += "CERTIFICATE for %s\n"%self.pretty_cert()
result += "Issued by %s\n"%self.get_issuer()
filename=self.get_filename()
if filename: result += "Filename %s\n"%filename
if show_extensions:
- all_datas=self.get_all_datas()
+ all_datas = self.get_all_datas()
result += " has %d extensions/data attached"%len(all_datas)
- for (n,v,c) in all_datas:
+ for (n, v, c) in all_datas:
if c=='data':
result += " data: %s=%s\n"%(n,v)
else:
git://git.onelab.eu / sfa.git / blobdiff