def post_url(url, post_data, destinationpath, debug=False, message=None, follow_redirects=True,
progress_method=None):
"""Sends POST data to a URL and then returns the result.
Accepts the URL to send the POST to, URL encoded data and
optionally can follow redirects
"""
tempdownloadpath = destinationpath + '.download'
if os.path.exists(tempdownloadpath):
os.remove(tempdownloadpath)
options = {'url': url,
'file': tempdownloadpath,
'follow_redirects': follow_redirects,
'post_data': post_data,
'connection_timeout': 60,
'logging_function': NSLog}
# NSLog('gurl options: %@', options)
if debug:
NSLog('url: %@', options['url'])
connection = SalGurl.alloc().initWithOptions_(options)
stored_percent_complete = -1
stored_bytes_received = 0
connection.start()
try:
while True:
# if we did `while not connection.isDone()` we'd miss printing
# messages and displaying percentages if we exit the loop first
connection_done = connection.isDone()
if message and connection.status and connection.status != 304:
# log always, display if verbose is 1 or more
# also display in progress field
if debug:
NSLog(message)
if progress_method:
progress_method(None, None, message)
# now clear message so we don't display it again
message = None
if (str(connection.status).startswith('2')
and connection.percentComplete != -1):
if connection.percentComplete != stored_percent_complete:
# display percent done if it has changed
stored_percent_complete = connection.percentComplete
if debug:
NSLog('Percent done: %@', stored_percent_complete)
if progress_method:
progress_method(None, stored_percent_complete, None)
elif connection.bytesReceived != stored_bytes_received:
# if we don't have percent done info, log bytes received
stored_bytes_received = connection.bytesReceived
if debug:
NSLog('Bytes received: %@', stored_bytes_received)
if progress_method:
progress_method(None, None,
'Bytes received: %s'
% stored_bytes_received)
if connection_done:
break
except (KeyboardInterrupt, SystemExit):
# safely kill the connection then re-raise
connection.cancel()
raise
except Exception, err: # too general, I know
# Let us out! ... Safely! Unexpectedly quit dialogs are annoying...
connection.cancel()
def get_url(url, destinationpath, debug=False, message=None, follow_redirects=True,
progress_method=None):
"""Gets an HTTP or HTTPS URL and stores it in
destination path. Returns a dictionary of headers, which includes
http_result_code and http_result_description.
Will raise GurlError if Gurl returns an error.
Will raise HTTPError if HTTP Result code is not 2xx or 304.
If destinationpath already exists, you can set 'onlyifnewer' to true to
indicate you only want to download the file only if it's newer on the
server.
If you set resume to True, Gurl will attempt to resume an
interrupted download."""
tempdownloadpath = destinationpath + '.download'
if os.path.exists(tempdownloadpath):
os.remove(tempdownloadpath)
options = {'url': url,
'file': tempdownloadpath,
'follow_redirects': follow_redirects,
'logging_function': NSLog}
# NSLog('gurl options: %@', options)
connection = SalGurl.alloc().initWithOptions_(options)
stored_percent_complete = -1
stored_bytes_received = 0
connection.start()
try:
while True:
# if we did `while not connection.isDone()` we'd miss printing
# messages and displaying percentages if we exit the loop first
connection_done = connection.isDone()
if message and connection.status and connection.status != 304:
# log always, display if verbose is 1 or more
# also display in progress field
if debug:
NSLog(message)
if progress_method:
progress_method(None, None, message)
# now clear message so we don't display it again
message = None
if (str(connection.status).startswith('2')
and connection.percentComplete != -1):
if connection.percentComplete != stored_percent_complete:
# display percent done if it has changed
stored_percent_complete = connection.percentComplete
if debug:
NSLog('Percent done: %@', stored_percent_complete)
if progress_method:
progress_method(None, stored_percent_complete, None)
elif connection.bytesReceived != stored_bytes_received:
# if we don't have percent done info, log bytes received
stored_bytes_received = connection.bytesReceived
if debug:
NSLog('Bytes received: %@', stored_bytes_received)
if progress_method:
progress_method(None, None,
'Bytes received: %s'
% stored_bytes_received)
if connection_done:
break
except (KeyboardInterrupt, SystemExit):
# safely kill the connection then re-raise
connection.cancel()
raise
except Exception, err: # too general, I know
# Let us out! ... Safely! Unexpectedly quit dialogs are annoying...
connection.cancel()
# Re-raise the error as a GurlError
raise GurlError(-1, str(err))
