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	* add language support * add image-support * add basic-implementation for video, music and file handling * refactore engine * add comments
		
			
				
	
	
		
			90 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			90 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
## Yacy (Web, Images, Videos, Music, Files)
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# 
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# @website     http://yacy.net
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# @provide-api yes (http://www.yacy-websuche.de/wiki/index.php/Dev:APIyacysearch)
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# 
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# @using-api   yes
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# @results     JSON
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# @stable      yes
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# @parse       (general)    url, title, content, publishedDate
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# @parse       (images)     url, title, img_src
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#
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# @todo        parse video, audio and file results
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from json import loads
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from urllib import urlencode
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from dateutil import parser
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# engine dependent config
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categories = ['general', 'images'] #TODO , 'music', 'videos', 'files'
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paging = True
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language_support = True
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number_of_results = 5
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# search-url
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base_url = 'http://localhost:8090'
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search_url = '/yacysearch.json?{query}&startRecord={offset}&maximumRecords={limit}&contentdom={search_type}&resource=global'
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# yacy specific type-definitions
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search_types = {'general': 'text',
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                'images': 'image',
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                'files': 'app',               
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                'music': 'audio',
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                'videos': 'video'}
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# do search-request
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def request(query, params):
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    offset = (params['pageno'] - 1) * number_of_results
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    search_type = search_types.get(params['category'], '0')
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    params['url'] = base_url + search_url.format(query=urlencode({'query': query}),
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                                                 offset=offset,
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                                                 limit=number_of_results,
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                                                 search_type=search_type)
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    # add language tag if specified
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    if params['language'] != 'all':
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        params['url'] += '&lr=lang_' + params['language'].split('_')[0]
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    return params
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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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    raw_search_results = loads(resp.text)
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    # return empty array if there are no results
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    if not raw_search_results:
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        return []
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    search_results = raw_search_results.get('channels', {})[0].get('items', [])
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    if resp.search_params['category'] == 'general':
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        # parse general results
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        for result in search_results:
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            publishedDate = parser.parse(result['pubDate'])
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            # append result
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            results.append({'url': result['link'],
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                        'title': result['title'],
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                        'content': result['description'],
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                        'publishedDate': publishedDate})
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    elif resp.search_params['category'] == 'images':
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        # parse image results
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        for result in search_results:
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            # append result
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            results.append({'url': result['url'],
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                        'title': result['title'],
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                        'content': '',
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                        'img_src': result['image'],
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                        'template': 'images.html'})
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    #TODO parse video, audio and file results
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    # return results
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    return results
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