I have checked Google Search API's and it seems that they have not released any API for searching "Images". So, I was wondering if there exists a python script/library through which I can automate the "search by image feature".
This was annoying enough to figure out that I thought I'd throw a comment on the first python-related stackoverflow result for "script google image search". The most annoying part of all this is setting up your proper application and custom search engine (CSE) in Google's web UI, but once you have your api key and CSE, define them in your environment and do something like:
#!/usr/bin/env python
# save top 10 google image search results to current directory
# https://developers.google.com/custom-search/json-api/v1/using_rest
import requests
import os
import sys
import re
import shutil
url = 'https://www.googleapis.com/customsearch/v1?key={}&cx={}&searchType=image&q={}'
apiKey = os.environ['GOOGLE_IMAGE_APIKEY']
cx = os.environ['GOOGLE_CSE_ID']
q = sys.argv[1]
i = 1
for result in requests.get(url.format(apiKey, cx, q)).json()['items']:
link = result['link']
image = requests.get(link, stream=True)
if image.status_code == 200:
m = re.search(r'[^\.]+$', link)
filename = './{}-{}.{}'.format(q, i, m.group())
with open(filename, 'wb') as f:
image.raw.decode_content = True
shutil.copyfileobj(image.raw, f)
i += 1
There is no API available but you are can parse the page and imitate the browser, but I don't know how much data you need to parse because google may limit or block access.
You can imitate the browser by simply using urllib and setting correct headers, but if you think parsing complex web-pages may be difficult from python, you can directly use a headless browser like phontomjs, inside a browser it is trivial to get correct elements using javascript/DOM
Note before trying all this check google's TOS
You can try this:
https://developers.google.com/image-search/v1/jsondevguide#json_snippets_python
It's deprecated, but seems to work.
Related
I'd like to download the entire revision history of a single article on Wikipedia, but am running into a roadblock.
It is very easy to download an entire Wikipedia article, or to grab pieces of its history using the Special:Export URL parameters:
curl -d "" 'https://en.wikipedia.org/w/index.php?title=Special:Export&pages=Stack_Overflow&limit=1000&offset=1' -o "StackOverflow.xml"
And of course I can download the entire site including all versions of every article from here, but that's many terabytes and way more data than I need.
Is there a pre-built method for doing this? (Seems like there must be.)
The example above only gets information about the revisions, not the actual contents themselves. Here's a short python script that downloads the full content and metadata history data of a page into individual json files:
import mwclient
import json
import time
site = mwclient.Site('en.wikipedia.org')
page = site.pages['Wikipedia']
for i, (info, content) in enumerate(zip(page.revisions(), page.revisions(prop='content'))):
info['timestamp'] = time.strftime("%Y-%m-%dT%H:%M:%S", info['timestamp'])
print(i, info['timestamp'])
open("%s.json" % info['timestamp'], "w").write(json.dumps(
{ 'info': info,
'content': content}, indent=4))
Wandering around aimlessly looking for clues to another question I have myself — my way of saying I know nothing substantial about this topic! — I just came upon this a moment after reading your question: http://mwclient.readthedocs.io/en/latest/reference/page.html. Have a look for the revisions method.
EDIT: I also see http://mwclient.readthedocs.io/en/latest/user/page-ops.html#listing-page-revisions.
Sample code using the mwclient module:
#!/usr/bin/env python3
import logging, mwclient, pickle, os
from mwclient import Site
from mwclient.page import Page
logging.root.setLevel(logging.DEBUG)
logging.debug('getting page...')
env_page = os.getenv("MEDIAWIKI_PAGE")
page_name = env_page is not None and env_page or 'Stack Overflow'
page_name = Page.normalize_title(env_page)
site = Site('en.wikipedia.org') # https by default. change w/`scheme=`
page = site.pages[page_name]
logging.debug('extracting revisions (may take a really long time, depending on the page)...')
revisions = []
for i, revision in enumerate(page.revisions()):
revisions.append(revision)
logging.debug('saving to file...')
with open('{}Revisions.mediawiki.pkl'.format(page_name), 'wb+') as f:
pickle.dump(revisions, f, protocol=0) # protocol allows backwards compatibility between machines
I'm trying to manipulate a dynamic JSON from this site:
http://esaj.tjsc.jus.br/cposgtj/imagemCaptcha.do
It has 3 elements, imagem, a base64, labelValorCaptcha, just a message, and uuidCaptcha, a value to pass by parameter to play a sound in this link bellow:
http://esaj.tjsc.jus.br/cposgtj/somCaptcha.do?timestamp=1455996420264&uuidCaptcha=sajcaptcha_e7b072e1fce5493cbdc46c9e4738ab8a
When I enter in the first site through a browser and put in the second link the uuidCaptha after the equal ("..uuidCaptcha="), the sound plays normally. I wrote a simple code to catch this elements.
import urllib, json
url = "http://esaj.tjsc.jus.br/cposgtj/imagemCaptcha.do"
response = urllib.urlopen(url)
data = json.loads(response.read())
urlSound = "http://esaj.tjsc.jus.br/cposgtj/somCaptcha.do?timestamp=1455996420264&uuidCaptcha="
print urlSound + data['uuidCaptcha']
But I dont know what's happening, the caught value of the uuidCaptcha doesn't work. Open a error web page.
Someone knows?
Thanks!
It works for me.
$ cat a.py
#!/usr/bin/env python
# encoding: utf-8
import urllib, json
url = "http://esaj.tjsc.jus.br/cposgtj/imagemCaptcha.do"
response = urllib.urlopen(url)
data = json.loads(response.read())
urlSound = "http://esaj.tjsc.jus.br/cposgtj/somCaptcha.do?timestamp=1455996420264&uuidCaptcha="
print urlSound + data['uuidCaptcha']
$ python a.py
http://esaj.tjsc.jus.br/cposgtj/somCaptcha.do?timestamp=1455996420264&uuidCaptcha=sajcaptcha_efc8d4bc3bdb428eab8370c4e04ab42c
As I said #Charlie Harding, the best way is download the page and get the JSON values, because this JSON is dynamic and need an opened web link to exist.
More info here.
I have searched the web far and wide for a still working example of uploading a photo to facebook through the Python API (Python for Facebook). Questions like this have been asked on stackoverflow before but non of the answers I have found work anymore.
What I got working is:
import facebook as fb
cfg = {
"page_id" : "my_page_id",
"access_token" : "my_access_token"
}
api = get_api(cfg)
msg = "Hello world!"
status = api.put_wall_post(msg)
where I have defined the get_api(cfg) function as this
graph = fb.GraphAPI(cfg['access_token'], version='2.2')
# Get page token to post as the page. You can skip
# the following if you want to post as yourself.
resp = graph.get_object('me/accounts')
page_access_token = None
for page in resp['data']:
if page['id'] == cfg['page_id']:
page_access_token = page['access_token']
graph = fb.GraphAPI(page_access_token)
return graph
And this does indeed post a message to my page.
However, if I instead want to upload an image everything goes wrong.
# Upload a profile photo for a Page.
api.put_photo(image=open("path_to/my_image.jpg",'rb').read(), message='Here's my image')
I get the dreaded GraphAPIError: (#324) Requires upload file for which non of the solutions on stackoverflow works for me.
If I instead issue the following command
api.put_photo(image=open("path_to/my_image.jpg",'rb').read(), album_path=cfg['page_id'] + "/picture")
I get GraphAPIError: (#1) Could not fetch picture for which I haven't been able to find a solution either.
Could someone out there please point me in the right direction of provide me with a currently working example? It would be greatly appreciated, thanks !
A 324 Facebook error can result from a few things depending on how the photo upload call was made
a missing image
an image not recognised by Facebook
incorrect directory path reference
A raw cURL call looks like
curl -F 'source=#my_image.jpg' 'https://graph.facebook.com/me/photos?access_token=YOUR_TOKEN'
As long as the above calls works, you can be sure the photo agrees with Facebook servers.
An example of how a 324 error can occur
touch meow.jpg
curl -F 'source=#meow.jpg' 'https://graph.facebook.com/me/photos?access_token=YOUR_TOKEN'
This can also occur for corrupted image files as you have seen.
Using .read() will dump the actual data
Empty File
>>> image=open("meow.jpg",'rb').read()
>>> image
''
Image File
>>> image=open("how.png",'rb').read()
>>> image
'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00...
Both of these will not work with the call api.put_photo as you have seen and Klaus D. mentioned the call should be without read()
So this call
api.put_photo(image=open("path_to/my_image.jpg",'rb').read(), message='Here's my image')
actually becomes
api.put_photo('\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00...', message='Here's my image')
Which is just a string, which isn't what is wanted.
One needs the image reference <open file 'how.png', mode 'rb' at 0x1085b2390>
I know this is old and doesn't answer the question with the specified API, however, I came upon this via a search and hopefully my solution will help travelers on a similar path.
Using requests and tempfile
A quick example of how I do it using the tempfile and requests modules.
Download an image and upload to Facebook
The script below should grab an image from a given url, save it to a file within a temporary directory and automatically cleanup after finished.
In addition, I can confirm this works running on a Flask service on Google Cloud Run. That comes with the container runtime contract so that we can store the file in-memory.
import tempfile
import requests
# setup stuff - certainly change this
filename = "your-desired-filename"
filepath = f"{directory}/{filename}"
image_url = "your-image-url"
act_id = "your account id"
access_token = "your access token"
# create the temporary directory
temp_dir = tempfile.TemporaryDirectory()
directory = temp_dir.name
# stream the image bytes
res = requests.get(image_url, stream=True)
# write them to your filename at your temporary directory
# assuming this works
# add logic for non 200 status codes
with open(filepath, "wb+") as f:
f.write(res.content)
# prep the payload for the facebook call
files = {
"filename": open(filepath, "rb"),
}
url = f"https://graph.facebook.com/v10.0/{act_id}/adimages?access_token={access_token}"
# send the POST request
res = requests.post(url, files=files)
res.raise_for_status()
if res.status_code == 200:
# get your image data back
image_upload_data = res.json()
temp_dir.cleanup()
if "images" in image_upload_data:
return image_upload_data["images"][filepath.split("/")[-1]]
return image_upload_data
temp_dir.cleanup() # paranoid: just in case an error isn't raised
My final goal is import some data from Google Site pages.
I'm trying to use gdata-python-client (v2.0.17) to download a specific Content Feed:
self.client = gdata.sites.client.SitesClient(source=SOURCE_APP_NAME)
self.client.client_login(USERNAME, PASSWORD, source=SOURCE_APP_NAME, service=self.client.auth_service)
self.client.site = SITE
self.client.domain = DOMAIN
uri = '%s?path=%s' % (self.client.MakeContentFeedUri(), '[PAGE PATH]')
feed = self.client.GetContentFeed(uri=uri)
entry = feed.entry[0]
...
Resulted entry.content has a page content in xhtml format. But this tree doesn't content any plan text data from a page. Only html page struct and links.
For example my test page has
<div>Some text</div>
ContentFeed entry has only div node with text=None.
I have debugged gdata-python-client request/response and checked resolved data from server in raw buffer - any plan text data in content. Hence it is a Google API bug.
May be there is some workaround? May be i can use some common request parameter? What's going wrong here?
This code works for me against a Google Apps domain and gdata 2.0.17:
import atom.data
import gdata.sites.client
import gdata.sites.data
client = gdata.sites.client.SitesClient(source='yourCo-yourAppName-v1', site='examplesite', domain='example.com')
client.ClientLogin('admin#example.com', 'examplepassword', client.source);
uri = '%s?path=%s' % (client.MakeContentFeedUri(), '/home')
feed = client.GetContentFeed(uri=uri)
entry = feed.entry[0]
print entry
Given, it's pretty much identical to yours, but it might help you prove or disprove something. Good luck!
I have some JavaScript from a 3rd party vendor that is initiating an image request. I would like to figure out the URI of this image request.
I can load the page in my browser, and then monitor "Live HTTP Headers" or "Tamper Data" in order to figure out the image request URI, but I would prefer to create a command line process to do this.
My intuition is that it might be possible using python + qtwebkit, but perhaps there is a better way.
To clarify: I might have this (overly simplified code).
<script>
suffix = magicNumberFunctionIDontHaveAccessTo();
url = "http://foobar.com/function?parameter=" + suffix
img = document.createElement('img'); img.src=url; document.all.body.appendChild(img);
</script>
Then once the page is loaded, I can go figure out the url by sniffing the packets. But I can't just figure it out from the source, because I can't predict the outcome of magicNumberFunction...().
Any help would be muchly appreciated!
Thank you.
The simplest thing to do might be to use something like HtmlUnit and skip a real browser entirely. By using Rhino, it can evaluate JavaScript and likely be used to extract that URL out.
That said, if you can't get that working, try out Selenium RC and use the captureNetworkTraffic command (which requires the Selenium instant be started with an option of captureNetworkTraffic=true). This will launch Firefox with a proxy configured and then let you pull the request info back out as JSON/XML/plain text. Then you can parse that content and get what you want.
Try out the instant test tool that my company offers. If the data you're looking for is in our results (after you click View Details), you'll be able to get it from Selenium. I know, since I wrote the captureNetworkTraffic API for Selenium for my company, BrowserMob.
I would pick any one of the many http proxy servers written in Python -- probably one of the simplest ones at the very top of the list -- and tweak it to record all URLs requested (as well as proxy-serve them) e.g. appending them to a text file -- without loss of generality, call that text file 'XXX.txt'.
Now all you need is a script that: starts the proxy server in question; starts Firefox (or whatever) on your main desired URL with the proxy in question set as your proxy (see e.g. this SO question for how), though I'm sure other browsers would work just as well; waits a bit (e.g. until the proxy's XXX.txt file has not been altered for more than N seconds); reads XXX.txt to extract only the URLs you care about and record them wherever you wish; turns down the proxy and Firefox processes.
I think this will be much faster to put in place and make work correctly, for your specific requirements, than any more general solution based on qtwebkit, selenium, or other "automation kits".
Use Firebug Firefox plugin. It will show you all requests in real time and you can even debug the JS in your Browser or run it step-by-step.
Ultimately, I did it in python, using Selenium-RC. This solution requires the python files for selenium-rc, and you need to start the java server ("java -jar selenium-server.jar")
from selenium import selenium
import unittest
import lxml.html
class TestMyDomain(unittest.TestCase):
def setUp(self):
self.selenium = selenium("localhost", \
4444, "*firefox", "http://www.MyDomain.com")
self.selenium.start()
def test_mydomain(self):
htmldoc = open('site-list.html').read()
url_list = [link for (element, attribute,link,pos) in lxml.html.iterlinks(htmldoc)]
for url in url_list:
try:
sel = self.selenium
sel.open(url)
sel.select_window("null")
js_code = '''
myDomainWindow = this.browserbot.getUserWindow();
for(obj in myDomainWindow) {
/* This code grabs the OMNITURE tracking pixel img */
if ((obj.substring(0,4) == 's_i_') && (myDomainWindow[obj].src)) {
var ret = myDomainWindow[obj].src;
}
}
ret;
'''
omniture_url = sel.get_eval(js_code) #parse&process this however you want
except Exception, e:
print 'We ran into an error: %s' % (e,)
self.assertEqual("expectedValue", observedValue)
def tearDown(self):
self.selenium.stop()
if __name__ == "__main__":
unittest.main()
Why can't you just read suffix, or url for that matter? Is the image loaded in an iframe or in your page?
If it is loaded in your page, then this may be a dirty hack (substitute document.body for whatever element is considered):
var ac = document.body.appendChild;
var sources = [];
document.body.appendChild = function(child) {
if (/^img$/i.test(child.tagName)) {
sources.push(child.getAttribute('src'));
}
ac(child);
}