Cleaned up python

This commit is contained in:
jrconlin
2011-11-28 15:04:43 -08:00
parent 8149dfced4
commit 02c375640c
3 changed files with 325 additions and 303 deletions
+242 -232
View File
@@ -1,232 +1,242 @@
#!/usr/bin/env python -tt
import base64;
import hmac;
import hashlib;
import random;
import re;
import time;
import urlparse;
import urllib2;
import pdb
class OAuthSimpleException(Exception):
def __init__(self,value):
self.msg = value
def __str__(self):
return repr(self.msg)
class OAuthSimple:
from OAuthSimple import OAuthSimpleException
_secrets={}
_parameters={}
_default_signature_method="HMAC-SHA1"
_action="GET"
_nonce_characters='0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
sbs=""
_path=""
def __init__(self, apiKey = None, sharedSecret = None):
if apiKey:
self._secrets['oauth_consumer_key']=apiKey
if sharedSecret:
self._secrets['shared_secret']=sharedSecret
return ;
def reset (self):
self._parameters={}
self.path={}
self.sbs={}
return self
def setParameters(self,parameters={}):
if parameters:
if type(parameters)==type(""):
parameters = self._parseParameterString(parameters)
if not self._parameters:
self._parameters = parameters
elif parameters:
self._parameters = self._arrayMerge(self._parameters,parameters)
if not self._parameters.get('oauth_nonce'):
self._getNonce()
if not self._parameters.get('oauth_timestamp'):
self._getTimeStamp();
if not self._parameters.get('oauth_consumer_key'):
self._getApiKey();
if not self._parameters.get('oauth_token'):
self._getAccessToken();
if not self._parameters.get('oauth_signature_method'):
self.setSignatureMethod()
if not self._parameters.get('oauth_version'):
self._parameters['oauth_version']='1.0';
return self;
def setPath (self,path):
if not path:
raise OAuthSimpleException('No path specified');
self._path = path;
return self;
def setAction(self, action):
action = action.upper();
if re.match('[^A-Z]',action):
raise OAuthSimpleException('Invalid action specified for OAuthSimple.setAction');
self._action = action;
return self;
def signatures(self,signatures):
if signatures and (type(signatures) != type({})):
raise OAuthSimpleException('Must pass Dict to OAuthSimple.signatures')
if signatures:
self._secrets = self._arrayMerge(signatures,self._secrets)
# swap keys
swap = (('api_key','oauth_consumer_key'),
('consumer_key','oauth_consumer_key'),
('access_token','oauth_token'),
('access_token_secret','oauth_secret'))
for swapable in swap:
if (self._secrets.get(swapable[0])):
self._secrets[swapable[1]]=self._secrets[swapable[0]]
del self._secrets[swapable[0]]
if not self._secrets.get('oauth_consumer_key'):
raise OAuthSimpleException('Missing required oauth_consumer_key')
if not self._secrets.get('shared_secret'):
raise OAuthSimpleException('Missing required shared_secret')
if self._secrets.get('oauth_token') and not self._secrets.get('oauth_secret'):
raise OAuthSimpleException('Missing oauth_secret for supplied oauth_token')
return self;
def setSignatureMethod(self,method=None):
if not method:
method=self._default_signature_method
method = method.upper()
if method not in ('PLAINTEXT','HMAC-SHA1'):
raise OAuthSimpleException('Invalid Signature method specified ')
self._parameters['oauth_signature_method']=method;
return self;
def sign(self,args={}):
if args.get('action'):
self.setAction(args['action']);
if args.get('path'):
self.setPath(args['path']);
if args.get('method'):
self.setSignatureMethod(args['method']);
if args.get('signatures'):
self.signatures(args.get('signatures'));
self.setParameters(args.get('parameters'));
normParamString = self._normalizeParameters();
self._parameters['oauth_signature'] = self._generateSignature(normParamString)
return {'parameters':self._parameters,
'signature':self._oauthEscape(self._parameters['oauth_signature']),
'signed_url':self._path+'?'+self._normalizeParameters(),
'header':self.getHeaderString(),
'sbs':self.sbs
};
def getHeaderString(self,args={}):
result = [];
if not self._parameters.get('oauth_signature'):
self.sign(args);
for pName in self._parameters:
if not pName.startswith('oauth_'):
continue;
pValue = self._parameters.get(pName);
if type(pValue) == type([]):
for val in pValue:
result.append(pName + '="' + self._oauthEscape(val) + '"')
else:
result.append(pName + '="' + self._oauthEscape(str(pValue)) + '"');
return 'OAuth '+', '.join(result);
def _arrayMerge(self,target,source):
for skey in source.keys():
target[skey]=source.get(skey);
return target;
def _parseParameterString(self,paramString):
return urlparse.parse_qs(paramString,True);
def _oauthEscape (self,string):
if not string:
return '';
string = urllib2.quote(string);
return string.replace('/','%2F').replace('+','%20').replace('!','%21').replace('*','%2A').replace('\\','%27').replace('(','%28').replace(')','%29')
def _getApiKey(self):
if not self._parameters.has_key('oauth_consumer_key'):
if not self._secrets.get('oauth_consumer_key'):
raise OAuthSimpleException('No oauth_consumer_key set')
self._parameters['oauth_consumer_key']=self._secrets.get('oauth_consumer_key')
return self._parameters.get('oauth_consumer_key');
def _getAccessToken(self):
if not self._secrets.has_key('oauth_secret'):
return ''
if not self._parameters.has_key('oauth_access_token'):
if not self._secrets.get('oauth_access_token'):
raise OAuthSimpleException('No oauth_access_token set')
self._parameters['oauth_access_token'] = self._secrets.get('oauth_access_token')
return self._parameters.get('oauth_access_token')
def _getNonce(self,length=5):
result = [];
cLength = len(self._nonce_characters);
for i in range(0,length):
rnd = random.randint(0,cLength-1)
result.append(self._nonce_characters[rnd])
self._parameters['oauth_nonce']=''.join(result);
return self._parameters['oauth_nonce']
def _getTimeStamp(self):
""" return the top UTC time integer as a string """
self._parameters['oauth_timestamp']=int(time.time());
return self._parameters['oauth_timestamp']
def _normalizeParameters(self):
elements=[]
if not self._parameters:
return '';
pKeys = self._parameters.keys();
pKeys.sort();
for paramName in pKeys:
if paramName.find('_secret') > 0:
continue;
paramValue = self._parameters.get(paramName)
if type(paramValue) == type([]):
paramValue.sort();
for value in paramValue:
elements.append(self._oauthEscape(paramName)+'='+self._oauthEscape(value))
next
else:
elements.append(self._oauthEscape(paramName)+'='+self._oauthEscape(str(paramValue)))
return '&'.join(elements)
def _generateSignature(self,normParamString):
secretKey='';
if self._secrets.get('shared_secret'):
secretKey = self._oauthEscape(self._secrets['shared_secret']);
secretKey += '&';
if self._secrets.get('oauth_secret'):
secretKey += self._oauthEscape(self._secrets['oauth_secret']);
if (self._parameters['oauth_signature_method'] == 'PLAINTEXT'):
return secretKey;
elif (self._parameters['oauth_signature_method'] == 'HMAC-SHA1'):
self.sbs = '&'.join([self._oauthEscape(self._action),
self._oauthEscape(self._path),
self._oauthEscape(normParamString)]
)
return base64.b64encode(hmac.new(secretKey,self.sbs,hashlib.sha1).digest());
#!/usr/bin/env python -tt
import base64
import hashlib
import hmac
import random
import re
import time
import urllib2
import urlparse
import string
import OAuthSimpleException
class OAuthSimple:
_secrets = {}
_parameters = {}
_default_signature_method = "HMAC-SHA1"
_action = "GET"
_nonce_characters = string.digits + string.letters
sbs = ""
_path = ""
def __init__(self, apiKey=None, sharedSecret=None):
if apiKey:
self._secrets['oauth_consumer_key'] = apiKey
if sharedSecret:
self._secrets['shared_secret'] = sharedSecret
return
def reset(self):
self._parameters = {}
self.path = {}
self.sbs = {}
return self
def setParameters(self, parameters={}):
if parameters:
if type(parameters) == type(""):
parameters = self._parseParameterString(parameters)
if not self._parameters:
self._parameters = parameters
elif parameters:
self._parameters = self._arrayMerge(self._parameters,
parameters)
if not self._parameters.get('oauth_nonce'):
self._getNonce()
if not self._parameters.get('oauth_timestamp'):
self._getTimeStamp()
if not self._parameters.get('oauth_consumer_key'):
self._getApiKey()
if not self._parameters.get('oauth_token'):
self._getAccessToken()
if not self._parameters.get('oauth_signature_method'):
self.setSignatureMethod()
if not self._parameters.get('oauth_version'):
self._parameters['oauth_version'] = '1.0'
return self
def setPath(self, path):
if not path:
raise OAuthSimpleException('No path specified')
self._path = path
return self
def setAction(self, action):
action = action.upper()
if re.match('[^A-Z]', action):
raise OAuthSimpleException(
'Invalid action specified for OAuthSimple.setAction')
self._action = action
return self
def signatures(self, signatures):
if signatures and (type(signatures) != type({})):
raise OAuthSimpleException(
'Must pass Dict to OAuthSimple.signatures')
if signatures:
self._secrets = self._arrayMerge(signatures, self._secrets)
# swap keys
swap = (('api_key', 'oauth_consumer_key'),
('consumer_key', 'oauth_consumer_key'),
('access_token', 'oauth_token'),
('access_token_secret', 'oauth_secret'))
for swapable in swap:
if (self._secrets.get(swapable[0])):
self._secrets[swapable[1]] = self._secrets[swapable[0]]
del self._secrets[swapable[0]]
if not self._secrets.get('oauth_consumer_key'):
raise OAuthSimpleException('Missing required oauth_consumer_key')
if not self._secrets.get('shared_secret'):
raise OAuthSimpleException('Missing required shared_secret')
if (self._secrets.get('oauth_token') and
not self._secrets.get('oauth_secret')):
raise OAuthSimpleException(
'Missing oauth_secret for supplied oauth_token')
return self
def setSignatureMethod(self, method=None):
if not method:
method = self._default_signature_method
method = method.upper()
if method not in ('PLAINTEXT', 'HMAC-SHA1'):
raise OAuthSimpleException('Invalid Signature method specified ')
self._parameters['oauth_signature_method'] = method
return self
def sign(self, args={}):
if args.get('action'):
self.setAction(args['action'])
if args.get('path'):
self.setPath(args['path'])
if args.get('method'):
self.setSignatureMethod(args['method'])
if args.get('signatures'):
self.signatures(args.get('signatures'))
self.setParameters(args.get('parameters'))
normParamString = self._normalizeParameters()
self._parameters['oauth_signature'] = \
self._generateSignature(normParamString)
return {'parameters': self._parameters,
'signature': self._oauthEscape(
self._parameters['oauth_signature']),
'signed_url': '%s?%s' % (self._path,
self._normalizeParameters()),
'header': self.getHeaderString(),
'sbs': self.sbs}
def getHeaderString(self, args={}):
result = []
if not self._parameters.get('oauth_signature'):
self.sign(args)
for pName in self._parameters:
if not pName.startswith('oauth_'):
continue
pValue = self._parameters.get(pName)
if type(pValue) == type([]):
for val in pValue:
result.append('%s="%s"' % (pName,
self._oauthEscape(val)))
else:
result.append('%s="%s"' % (pName,
self._oauthEscape(str(pValue))))
return 'OAuth %s' % (', '.join(result))
def _arrayMerge(self, target, source):
for skey in source.keys():
target[skey] = source.get(skey)
return target
def _parseParameterString(self, paramString):
return urlparse.parse_qs(paramString, True)
def _oauthEscape(self, string):
if not string:
return ''
string = urllib2.quote(string)
return string.replace('/', '%2F').replace('+', '%20')\
.replace('!', '%21').replace('*', '%2A')\
.replace('\\', '%27').replace('(', '%28').\
replace(')', '%29')
def _getApiKey(self):
if 'oauth_consumer_key' not in self._parameters:
if not self._secrets.get('oauth_consumer_key'):
raise OAuthSimpleException('No oauth_consumer_key set')
self._parameters['oauth_consumer_key'] = \
self._secrets.get('oauth_consumer_key')
return self._parameters.get('oauth_consumer_key')
def _getAccessToken(self):
if 'oauth_secret' not in self._secrets:
return ''
if 'oauth_access_token' not in self._parameters:
if not self._secrets.get('oauth_access_token'):
raise OAuthSimpleException('No oauth_access_token set')
self._parameters['oauth_access_token'] = \
self._secrets.get('oauth_access_token')
return self._parameters.get('oauth_access_token')
def _getNonce(self, length=5):
result = []
cLength = len(self._nonce_characters)
for i in range(0, length):
rnd = random.randint(0, cLength - 1)
result.append(self._nonce_characters[rnd])
self._parameters['oauth_nonce'] = ''.join(result)
return self._parameters['oauth_nonce']
def _getTimeStamp(self):
""" return the top UTC time integer as a string """
self._parameters['oauth_timestamp'] = int(time.time())
return self._parameters['oauth_timestamp']
def _normalizeParameters(self):
elements = []
if not self._parameters:
return ''
pKeys = self._parameters.keys()
pKeys.sort()
for paramName in pKeys:
if paramName.find('_secret') > 0:
continue
paramValue = self._parameters.get(paramName)
if type(paramValue) == type([]):
paramValue.sort()
for value in paramValue:
elements.append('%s=%s' % (self._oauthEscape(paramName),
self._oauthEscape(value)))
next
else:
elements.append('%s=%s' % (self._oauthEscape(paramName),
self._oauthEscape(str(paramValue))))
return '&'.join(elements)
def _generateSignature(self, normParamString):
secretKey = ''
if self._secrets.get('shared_secret'):
secretKey = self._oauthEscape(self._secrets['shared_secret'])
secretKey += '&'
if self._secrets.get('oauth_secret'):
secretKey += self._oauthEscape(self._secrets['oauth_secret'])
if (self._parameters['oauth_signature_method'] == 'PLAINTEXT'):
return secretKey
elif (self._parameters['oauth_signature_method'] == 'HMAC-SHA1'):
self.sbs = '&'.join([self._oauthEscape(self._action),
self._oauthEscape(self._path),
self._oauthEscape(normParamString)])
return base64.b64encode(hmac.new(secretKey,
self.sbs,
hashlib.sha1).digest())