#Webpage Thumbnails In Python A small WSGI script that uses selenium's headless PhantomJS driver to capture webpage screenshots, and PIL to resize them. Cropping options could easily be added.
##Dependencies
- Python selenium
- Python PIL
- PhantomJS
Created
November 29, 2013 00:45
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Webpage Thumbnails In Python
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| #!/usr/bin/python | |
| # -*- coding: utf-8 -*- | |
| from cgi import parse_qs, escape | |
| from selenium import webdriver | |
| from uuid import uuid4 | |
| import cStringIO | |
| import Image | |
| import json | |
| basePath = "/var/www/example.com/path/to/thumb/" | |
| baseUrl = "http://example.com/path/to/thumbs/" | |
| screenSize = (1024, 768) | |
| def application(environ, start_response): | |
| d = parse_qs(environ['QUERY_STRING']) | |
| if not all(k in d for k in ['url', 'width', 'height']): | |
| output = json.dumps({'success': False}) | |
| else: | |
| url = d['url'][0] | |
| width = int(d['width'][0]) | |
| height = int(d['height'][0]) | |
| output = "" | |
| driver = webdriver.PhantomJS(service_log_path=basePath + "ghostdriver.log") | |
| driver.set_script_timeout(30) | |
| driver.set_window_size(screenSize[0], screenSize[1]) | |
| driver.get(url) | |
| screenshot_fname = str(uuid4()) + ".png" | |
| screenshot_fpath = "{0}thumbs/{1}".format(basePath, screenshot_fname) | |
| screenshot = cStringIO.StringIO(driver.get_screenshot_as_png()) | |
| screenshot.seek(0) | |
| with open(screenshot_fpath, 'w+') as sfile: | |
| image = Image.open(screenshot) | |
| image.thumbnail((width, height), Image.ANTIALIAS) | |
| image.save(screenshot_fpath, 'PNG') | |
| screenshot.close() | |
| output = json.dumps({'success': True, 'thumb': baseUrl + screenshot_fname}) | |
| status = '200 OK' | |
| response_headers = [('Content-type', 'application/json'), | |
| ('Content-Length', str(len(output)))] | |
| start_response(status, response_headers) | |
| return [output] |
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