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			99 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			99 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| """
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|  Bing (Images)
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| 
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|  @website     https://www.bing.com/images
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|  @provide-api yes (http://datamarket.azure.com/dataset/bing/search),
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|               max. 5000 query/month
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| 
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|  @using-api   no (because of query limit)
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|  @results     HTML (using search portal)
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|  @stable      no (HTML can change)
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|  @parse       url, title, img_src
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| 
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|  @todo        currently there are up to 35 images receive per page,
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|               because bing does not parse count=10.
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|               limited response to 10 images
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| """
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| 
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| from urllib import urlencode
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| from lxml import html
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| from yaml import load
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| import re
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| 
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| # engine dependent config
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| categories = ['images']
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| paging = True
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| safesearch = True
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| 
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| # search-url
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| base_url = 'https://www.bing.com/'
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| search_string = 'images/search?{query}&count=10&first={offset}'
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| thumb_url = "https://www.bing.com/th?id={ihk}"
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| 
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| # safesearch definitions
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| safesearch_types = {2: 'STRICT',
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|                     1: 'DEMOTE',
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|                     0: 'OFF'}
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| 
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| 
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| # do search-request
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| def request(query, params):
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|     offset = (params['pageno'] - 1) * 10 + 1
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| 
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|     # required for cookie
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|     if params['language'] == 'all':
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|         language = 'en-US'
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|     else:
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|         language = params['language'].replace('_', '-')
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| 
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|     search_path = search_string.format(
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|         query=urlencode({'q': query}),
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|         offset=offset)
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| 
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|     params['cookies']['SRCHHPGUSR'] = \
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|         'NEWWND=0&NRSLT=-1&SRCHLANG=' + language.split('-')[0] +\
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|         '&ADLT=' + safesearch_types.get(params['safesearch'], 'DEMOTE')
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| 
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|     params['url'] = base_url + search_path
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| 
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|     return params
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| 
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| 
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| # get response from search-request
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| def response(resp):
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|     results = []
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| 
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|     dom = html.fromstring(resp.text)
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| 
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|     # init regex for yaml-parsing
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|     p = re.compile('({|,)([a-z]+):(")')
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| 
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|     # parse results
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|     for result in dom.xpath('//div[@class="dg_u"]'):
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|         link = result.xpath('./a')[0]
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| 
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|         # parse yaml-data (it is required to add a space, to make it parsable)
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|         yaml_data = load(p.sub(r'\1\2: \3', link.attrib.get('m')))
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| 
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|         title = link.attrib.get('t1')
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|         ihk = link.attrib.get('ihk')
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| 
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|         # url = 'http://' + link.attrib.get('t3')
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|         url = yaml_data.get('surl')
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|         img_src = yaml_data.get('imgurl')
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| 
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|         # append result
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|         results.append({'template': 'images.html',
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|                         'url': url,
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|                         'title': title,
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|                         'content': '',
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|                         'thumbnail_src': thumb_url.format(ihk=ihk),
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|                         'img_src': img_src})
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| 
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|         # TODO stop parsing if 10 images are found
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|         if len(results) >= 10:
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|             break
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| 
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|     # return results
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|     return results
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