def encrypt(self, data_bio, flags=0):
if not hasattr(self, 'cipher'):
raise SMIME_Error, 'no cipher: use set_cipher()'
if not hasattr(self, 'x509_stack'):
raise SMIME_Error, 'no recipient certs: use set_x509_stack()'
pkcs7 = m2.pkcs7_encrypt(self.x509_stack._ptr(), data_bio._ptr(), self.cipher._ptr(), flags)
if pkcs7 is None:
raise SMIME_Error, Err.get_error()
return PKCS7(pkcs7, 1)
def decrypt(self, pkcs7, flags=0):
if not hasattr(self, 'pkey'):
raise SMIME_Error, 'no private key: use load_key()'
if not hasattr(self, 'x509'):
raise SMIME_Error, 'no certificate: load_key() used incorrectly?'
blob = m2.pkcs7_decrypt(pkcs7._ptr(), self.pkey._ptr(), self.x509._ptr(), flags)
if blob is None:
raise SMIME_Error, Err.get_error()
return blob
def decrypt(self, pkcs7, flags=0):
if not hasattr(self, 'pkey'):
raise SMIME_Error, 'no private key: use load_key()'
if not hasattr(self, 'x509'):
raise SMIME_Error, 'no certificate: load_key() used incorrectly?'
blob = m2.pkcs7_decrypt(pkcs7._ptr(), self.pkey._ptr(),
self.x509._ptr(), flags)
if blob is None:
raise SMIME_Error, Err.get_error()
return blob
def encrypt(self, data_bio, flags=0):
if not hasattr(self, 'cipher'):
raise SMIME_Error, 'no cipher: use set_cipher()'
if not hasattr(self, 'x509_stack'):
raise SMIME_Error, 'no recipient certs: use set_x509_stack()'
pkcs7 = m2.pkcs7_encrypt(self.x509_stack._ptr(), data_bio._ptr(),
self.cipher._ptr(), flags)
if pkcs7 is None:
raise SMIME_Error, Err.get_error()
return PKCS7(pkcs7, 1)
def load_pkcs7(p7file):
bio = m2.bio_new_file(p7file, 'r')
if bio is None:
raise Err.get_error()
try:
p7_ptr = m2.pkcs7_read_bio(bio)
finally:
m2.bio_free(bio)
if p7_ptr is None:
raise Err.get_error()
return PKCS7(p7_ptr, 1)
def load_pkcs7(p7file):
bio = m2.bio_new_file(p7file, 'r')
if bio is None:
raise Err.get_error()
try:
p7_ptr = m2.pkcs7_read_bio(bio)
finally:
m2.bio_free(bio)
if p7_ptr is None:
raise Err.get_error()
return PKCS7(p7_ptr, 1)
def sign(self, data_bio, flags=0):
if not hasattr(self, "pkey"):
raise SMIME_Error, "no private key: use load_key()"
if hasattr(self, "x509_stack"):
pkcs7 = m2.pkcs7_sign1(self.x509._ptr(), self.pkey._ptr(), self.x509_stack._ptr(), data_bio._ptr(), flags)
if pkcs7 is None:
raise SMIME_Error(Err.get_error())
return PKCS7(pkcs7, 1)
else:
pkcs7 = m2.pkcs7_sign0(self.x509._ptr(), self.pkey._ptr(), data_bio._ptr(), flags)
if pkcs7 is None:
raise SMIME_Error(Err.get_error())
return PKCS7(pkcs7, 1)
def load_pkcs7(p7file):
bio = m2.bio_new_file(p7file, "r")
if bio is None:
raise BIO.BIOError(Err.get_error())
try:
p7_ptr = m2.pkcs7_read_bio(bio)
finally:
m2.bio_free(bio)
if p7_ptr is None:
raise PKCS7_Error(Err.get_error())
return PKCS7(p7_ptr, 1)
def verify(self, pkcs7, data_bio=None, flags=0):
if not hasattr(self, 'x509_stack'):
raise SMIME_Error, 'no signer certs: use set_x509_stack()'
if not hasattr(self, 'x509_store'):
raise SMIME_Error, 'no x509 cert store: use set_x509_store()'
assert isinstance(pkcs7, PKCS7), 'pkcs7 not an instance of PKCS7'
p7 = pkcs7._ptr()
if data_bio is None:
blob = m2.pkcs7_verify0(p7, self.x509_stack._ptr(), self.x509_store._ptr(), flags)
else:
blob = m2.pkcs7_verify1(p7, self.x509_stack._ptr(), self.x509_store._ptr(), data_bio._ptr(), flags)
if blob is None:
raise SMIME_Error, Err.get_error()
return blob
def text_crlf_bio(bio_in):
bio_out = BIO.MemoryBuffer()
m2.smime_crlf_copy(bio_in, bio_out)
if m2.smime_crlf_copy(bio_in, bio_out):
return bio_out
else:
raise Err.get_error()
def text_crlf(text):
bio_in = BIO.MemoryBuffer(text)
bio_out = BIO.MemoryBuffer()
if m2.smime_crlf_copy(bio_in, bio_out):
return bio_out.read()
else:
raise Err.get_error()
def sign(self, data_bio, flags=0):
if not hasattr(self, 'pkey'):
raise SMIME_Error, 'no private key: use load_key()'
if hasattr(self, 'x509_stack'):
pkcs7 = m2.pkcs7_sign1(self.x509._ptr(), self.pkey._ptr(),
self.x509_stack._ptr(), data_bio._ptr(),
flags)
if pkcs7 is None:
raise SMIME_Error, Err.get_error()
return PKCS7(pkcs7, 1)
else:
pkcs7 = m2.pkcs7_sign0(self.x509._ptr(), self.pkey._ptr(),
data_bio._ptr(), flags)
if pkcs7 is None:
raise SMIME_Error, Err.get_error()
return PKCS7(pkcs7, 1)
def smime_load_pkcs7(p7file):
bio = m2.bio_new_file(p7file, 'r')
if bio is None:
raise Err.get_error()
try:
p7_ptr, bio_ptr = m2.smime_read_pkcs7(bio)
finally:
m2.bio_free(bio)
if p7_ptr is None:
raise Err.get_error()
if bio_ptr is None:
return PKCS7(p7_ptr, 1), None
else:
return PKCS7(p7_ptr, 1), BIO.BIO(bio_ptr, 1)
def smime_load_pkcs7(p7file):
bio = m2.bio_new_file(p7file, "r")
if bio is None:
raise BIO.BIOError(Err.get_error())
try:
p7_ptr, bio_ptr = m2.smime_read_pkcs7(bio)
finally:
m2.bio_free(bio)
if p7_ptr is None:
raise SMIME_Error(Err.get_error())
if bio_ptr is None:
return PKCS7(p7_ptr, 1), None
else:
return PKCS7(p7_ptr, 1), BIO.BIO(bio_ptr, 1)
def __init__(self, input, out_file): # input是输入字符串,outfile是输出的文件
self.lex = word_anay.word_anay(input) # 词法分析器
self.line = 1 # 初始行数
self.nextsym() # 符号
self.table = SymbolTable.SymbolTable() # 符号表
self.interp = Interpreter.Interpreter(out_file)
self.myErr = Err.Err(out_file) # 错误处理
self.declbegsys = set()
self.declbegsys.add('CONST')
self.declbegsys.add('VAR')
self.declbegsys.add('PROCEDURE')
# 表示申明开始的符号集合：声明的FIRST集合
self.statbegsys = set()
self.statbegsys.add('BEGIN')
self.statbegsys.add('CALL')
self.statbegsys.add('IF')
self.statbegsys.add('WHILE')
self.statbegsys.add('REPEAT')
# 表示语句开始的符号集合：语句的FIRST集合
self.facbegsys = set() # 表示因子开始的符号集合：因子的FIRST集合
self.facbegsys.add('ID')
self.facbegsys.add('NUMBER')
self.facbegsys.add('LPAREN')
# 当前作用域的堆栈帧大小，或者说数据大小(datasize)
# 计算每个变量在运行栈中相对本过程基地址的偏移量
# 放在symbolTable中的address域
# 生成目标代码时再放在code中的a域
self.dx = 0
def text_crlf_bio(bio_in):
bio_out = BIO.MemoryBuffer()
m2.smime_crlf_copy(bio_in, bio_out)
if m2.smime_crlf_copy(bio_in, bio_out):
return bio_out
else:
raise Err.get_error()
def text_crlf(text):
bio_in = BIO.MemoryBuffer(text)
bio_out = BIO.MemoryBuffer()
if m2.smime_crlf_copy(bio_in._ptr(), bio_out._ptr()):
return bio_out.read()
else:
raise SMIME_Error(Err.get_error())
def smime_load_pkcs7_bio(p7_bio):
p7_ptr, bio_ptr = m2.smime_read_pkcs7(p7_bio._ptr())
if p7_ptr is None:
raise SMIME_Error(Err.get_error())
if bio_ptr is None:
return PKCS7(p7_ptr, 1), None
else:
return PKCS7(p7_ptr, 1), BIO.BIO(bio_ptr, 1)
def smime_load_pkcs7_bio(p7_bio):
p7_ptr, bio_ptr = m2.smime_read_pkcs7(p7_bio._ptr())
if p7_ptr is None:
raise Err.get_error()
if bio_ptr is None:
return PKCS7(p7_ptr, 1), None
else:
return PKCS7(p7_ptr, 1), BIO.BIO(bio_ptr, 1)
def verify(self, pkcs7, data_bio=None, flags=0):
if not hasattr(self, 'x509_stack'):
raise SMIME_Error, 'no signer certs: use set_x509_stack()'
if not hasattr(self, 'x509_store'):
raise SMIME_Error, 'no x509 cert store: use set_x509_store()'
assert isinstance(pkcs7, PKCS7), 'pkcs7 not an instance of PKCS7'
p7 = pkcs7._ptr()
if data_bio is None:
blob = m2.pkcs7_verify0(p7, self.x509_stack._ptr(),
self.x509_store._ptr(), flags)
else:
blob = m2.pkcs7_verify1(p7, self.x509_stack._ptr(),
self.x509_store._ptr(), data_bio._ptr(),
flags)
if blob is None:
raise SMIME_Error, Err.get_error()
return blob
def decrypt(self, pkcs7, flags=0):
if not hasattr(self, "pkey"):
raise SMIME_Error, "no private key: use load_key()"
if not hasattr(self, "x509"):
raise SMIME_Error, "no certificate: load_key() used incorrectly?"
blob = m2.pkcs7_decrypt(pkcs7._ptr(), self.pkey._ptr(), self.x509._ptr(), flags)
if blob is None:
raise SMIME_Error(Err.get_error())
return blob
def sign_raw(self, data_bio, flags=0, md=m2.NID_sha1):
if not hasattr(self, 'pkey'):
raise SMIME_Error, 'no private key: use load_key()'
if hasattr(self, 'x509_stack'):
pkcs7 = m2.pkcs7_sign_raw1(self.x509._ptr(), self.pkey._ptr(),
self.x509_stack._ptr(), data_bio._ptr(),
flags, md)
if pkcs7 is None:
raise SMIME_Error(Err.get_error())
return PKCS7(pkcs7, 1)
else:
return None
def load_pkcs7_bio(p7_bio):
p7_ptr = m2.pkcs7_read_bio(p7_bio._ptr())
if p7_ptr is None:
raise PKCS7_Error(Err.get_error())
return PKCS7(p7_ptr, 1)
def text_crlf_bio(bio_in):
bio_out = BIO.MemoryBuffer()
if m2.smime_crlf_copy(bio_in._ptr(), bio_out._ptr()):
return bio_out
else:
raise SMIME_Error(Err.get_error())
def load_pkcs7_bio(p7_bio):
p7_ptr = m2.pkcs7_read_bio(p7_bio._ptr())
if p7_ptr is None:
raise Err.get_error()
return PKCS7(p7_ptr, 1)
def syntaxError(self, recognizer, offendingSymbol, line, column, msg, e):
#print("line " + str(line) + ":" + str(column) + " " + msg, file=sys.stderr)
Err.addError(msg, Err.errFile, "line " + str(line) + ":" + str(column))
