logic to get and input captcha as string in python
- Thread starter msimurin
- Start date
I figured form posting and submitting and thanks for advices you gave me before, to use mechanize 
My first problem is figuring what i need to download from decaptcher.com, they claim to use python api but i dont see it on their site inside member area, second i am trying to implement this to mechanize - solve captcha, input it and normally submit form...
My first problem is figuring what i need to download from decaptcher.com, they claim to use python api but i dont see it on their site inside member area, second i am trying to implement this to mechanize - solve captcha, input it and normally submit form...
Well, I just skipped the decaptcher interface and instead used the command line version of decaptcher(Command Line API), launching it with the right parameters, then the output string gets saved into a txt file, I think it was named "answer.txt". Although I don't use python but C++ I think you can do it the same way in python.
I just checked decaptcher and they indeed don't have the claimed Python module.
Command line aside, which I find to be a dirty-hackish solution, I see 2 options:
1) You download the source code in a different language, like PHP, and you write an implementation in Python.
2) You write an API for decaptcher's web interface, which is described in their Downloads page.
The said HTTP interface is as simple as an HTTP post with some variables. I'm sure you can pull that off with mechanize itself, or maybe using something like httplib[2].
Here you have some examples on httplib2: http://code.google.com/p/httplib2/wiki/Examples
And the poster module will help to encode the captcha image: http://atlee.ca/software/poster/
Command line aside, which I find to be a dirty-hackish solution, I see 2 options:
1) You download the source code in a different language, like PHP, and you write an implementation in Python.
2) You write an API for decaptcher's web interface, which is described in their Downloads page.
The said HTTP interface is as simple as an HTTP post with some variables. I'm sure you can pull that off with mechanize itself, or maybe using something like httplib[2].
Here you have some examples on httplib2: http://code.google.com/p/httplib2/wiki/Examples
And the poster module will help to encode the captcha image: http://atlee.ca/software/poster/
I couldn't work on anything "hard" since the family arrived a couple hours ago, so I figured I would do something at least useful.
Very simple, based on the examples from the poster module.
Assuming the above code is in a file named decaptcher.py, and you are using it from within the same directory, you would use it like this:
That should do it.
Very simple, based on the examples from the poster module.
Code:
# -*- coding: utf-8 -*-
import urllib2
from poster.encode import multipart_encode
from poster.streaminghttp import register_openers
USERNAME = ''
PASSWORD = ''
# Decaptcher HTTP API URL
SERVICE_URL = 'http://decaptcher.com/poster/'
# Decaptcher Constants
ERROR_OK = 0
ERROR_GENERAL = -1
ERROR_STATUS = -2
ERROR_NET_ERROR = -3
ERROR_TEXT_SIZE = -4
ERROR_OVERLOAD = -5
ERROR_BALANCE = -6
ERROR_TIMEOUT = -7
ERROR_UNKNOWN = -200
TIMEOUT_DEFAULT = 0
TIMEOUT_LONG = 1
TIMEOUT_30SECONDS = 2
TIMEOUT_60SECONDS = 3
TIMEOUT_90SECONDS = 4
TYPE_UNSPECIFIED = 0
STATUS_INIT = 1
STATUS_LOGIN = 2
STATUS_HASH = 3
STATUS_PICTURE = 4
register_openers()
def solve(path):
extra = {
'pict' : open(path, 'rb'),
'pict_to' : '0',
'pict_type' : '0'
}
out = _call('picture2', extra)
out = out.split('|')
return out
def bad(major_id, minor_id):
extra = {'major_id' : major_id, 'minor_id' : minor_id}
out = _call('picture_bad2', extra)
out = out.split('|')
return out
def balance():
return _call('balance')
def _call(function, extra = {}):
data = {
'function': function,
'username': USERNAME,
'password': PASSWORD
}
data.update(extra)
datagen, headers = multipart_encode(data)
request = urllib2.Request(SERVICE_URL, datagen, headers)
content = urllib2.urlopen(request).read()
return contentAssuming the above code is in a file named decaptcher.py, and you are using it from within the same directory, you would use it like this:
Code:
import decaptcher
decaptcher.USERNAME='johndoe'
decaptcher.PASSWORD='p4ssw0rd'
# What's my balance?
print decaptcher.balance()
# Solve an image
out = decaptcher.solve('/tmp/captcha245.jpeg')
if int(out[0]) != decaptcher.ERROR_OK:
print "Error"
else:
# Do something with the image here.
# Say the image was badly recognized...
decaptcher.bad(out[1], out[2])That should do it
.