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import urllib2
import mimetools
from StringIO import StringIO
from BeautifulSoup import BeautifulSoup, CData
DEBUG = False # Set to True for debugging output.
class FogBugzAPIError(Exception):
pass
class FogBugzLogonError(FogBugzAPIError):
pass
class FogBugzConnectionError(FogBugzAPIError):
pass
class FogBugz:
def __init__(self, url, token=None):
self.__handlerCache = {}
if not url.endswith('/'):
url += '/'
if token:
self._token = token.encode('utf-8')
else:
self._token = None
self._opener = urllib2.build_opener()
try:
soup = BeautifulSoup(self._opener.open(url + 'api.xml'))
except (urllib2.URLError, urllib2.HTTPError), e:
raise FogBugzConnectionError("Library could not connect to the FogBugz API. Either this installation of FogBugz does not support the API, or the url, %s, is incorrect.\n\nError: %s" % (self._url, e))
self._url = url + soup.response.url.string
self.currentFilter = None
def logon(self, username, password):
"""
Logs the user on to FogBugz.
Returns None for a successful login.
"""
if self._token:
self.logoff()
try:
response = self.__makerequest('logon', email=username, password=password)
except FogBugzAPIError, e:
raise FogBugzLogonError(e)
self._token = response.token.string
if type(self._token) == CData:
self._token = self._token.encode('utf-8')
def logoff(self):
"""
Logs off the current user.
"""
self.__makerequest('logoff')
self._token = None
def token(self,token):
"""
Set the token without actually logging on. More secure.
"""
self._token = token.encode('utf-8')
def __encode_multipart_formdata(self, fields, files):
"""
fields is a sequence of (key, value) elements for regular form fields.
files is a sequence of (filename, filehandle) files to be uploaded
returns (content_type, body)
"""
BOUNDARY = mimetools.choose_boundary()
if len(files) > 0:
fields['nFileCount'] = str(len(files))
crlf = '\r\n'
buf = StringIO()
for k, v in fields.items():
if DEBUG:
print("field: %s: %s"% (repr(k), repr(v)))
buf.write(crlf.join([ '--' + BOUNDARY, 'Content-disposition: form-data; name="%s"' % k, '', str(v), '' ]))
n = 0
for f, h in files.items():
n += 1
buf.write(crlf.join([ '--' + BOUNDARY, 'Content-disposition: form-data; name="File%d"; filename="%s"' % ( n, f), '' ]))
buf.write(crlf.join([ 'Content-type: application/octet-stream', '', '' ]))
buf.write(h.read())
buf.write(crlf)
buf.write('--' + BOUNDARY + '--' + crlf)
content_type = "multipart/form-data; boundary=%s" % BOUNDARY
return content_type, buf.getvalue()
def __makerequest(self, cmd, **kwargs):
kwargs["cmd"] = cmd
if self._token:
kwargs["token"] = self._token
fields = dict([k, v.encode('utf-8') if isinstance(v,basestring) else v] for k, v in kwargs.items())
files = fields.get('Files', {})
if 'Files' in fields:
del fields['Files']
content_type, body = self.__encode_multipart_formdata(fields, files)
headers = { 'Content-Type': content_type,
'Content-Length': str(len(body))}
try:
request = urllib2.Request(self._url.encode('utf-8'), body, headers)
response = BeautifulSoup(self._opener.open(request)).response
except urllib2.URLError, e:
raise FogBugzConnectionError(e)
except UnicodeDecodeError, e:
print kwargs
raise
if response.error:
raise FogBugzAPIError('Error Code %s: %s' % (response.error['code'], response.error.string,))
return response
def __getattr__(self, name):
"""
Handle all FogBugz API calls.
>>> fb.logon(email@example.com, password)
>>> response = fb.search(q="assignedto:email")
"""
# Let's leave the private stuff to Python
if name.startswith("__"):
raise AttributeError("No such attribute '%s'" % name)
if not self.__handlerCache.has_key(name):
def handler(**kwargs):
return self.__makerequest(name, **kwargs)
self.__handlerCache[name] = handler
return self.__handlerCache[name]
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