def __init__(self, mongo_connection):
self.mongod = mongo_connection
self.processors = SiteQueryProcessor()
self.downloader = BasicDownloader()
logging.basicConfig(filename='logs/access.log', level=logging.INFO, format='%(asctime)s %(message)s')
self.search_systems = [
{'name': 'Yandex', 'query': self.processors.yandex_query, 'face_query': 'http://yandex.ua/yandsearch?text=',
'search_pattern': re.compile(r'<found priority="phrase">(\d+)</found>'),
'processor': None, 'preprocessor': self.processors.yandex_xml},
{'name': 'Meta.ua', 'query': 'http://meta.ua/ex/search.asp?q=', 'search_pattern': re.compile(r"<div class='found_info' >.*?<span>(.+?)</span>"),
'processor': self.processors.only_digits, 'preprocessor': None},
# You can add here another one
]
class PagesDownloader(object):
def __init__(self, mongo_connection):
self.mongod = mongo_connection
self.processors = SiteQueryProcessor()
self.downloader = BasicDownloader()
logging.basicConfig(filename='logs/access.log', level=logging.INFO, format='%(asctime)s %(message)s')
self.search_systems = [
{'name': 'Yandex', 'query': self.processors.yandex_query, 'face_query': 'http://yandex.ua/yandsearch?text=',
'search_pattern': re.compile(r'<found priority="phrase">(\d+)</found>'),
'processor': None, 'preprocessor': self.processors.yandex_xml},
{'name': 'Meta.ua', 'query': 'http://meta.ua/ex/search.asp?q=', 'search_pattern': re.compile(r"<div class='found_info' >.*?<span>(.+?)</span>"),
'processor': self.processors.only_digits, 'preprocessor': None},
# You can add here another one
]
def get_results(self, search_queries):
""" One function to ask search systems, generate HTML output.
Give it your queries as a list and you will recieve complete HTML
with table of results. Easy and useful.
"""
search_systems = self.search_systems
# HTML results file
results_list = []
# Short alias for actively used function.
append = results_list.append
# Adding current date.
current_date = date.today()
append(current_date.strftime('<div align="center"><h3>Результаты поиска на %d.%m.%Y</h3></div><br>'))
# Generating headers for table.
append('<table class="table table-bordered">\n<thead>\n<tr>\n<th>Запрос</th>')
for system in search_systems:
append("<th>%s</th>" % system['name'])
append('</tr>\n</thead>')
# Generating data output body table.
append('<tbody>')
for query in search_queries:
# Is query safe for making requests
if not self.processors.safety_check(query):
# If not - skip this word.
continue
# Initializing dict to store data in mongo db.
historical_data = {}
# New row with query text
append('<tr>\n<td>%s</td>' % query)
# Looping through search systems
for system in search_systems:
# Applying preprocessor functions
if system['preprocessor']:
query_text = system['preprocessor'](query)
else:
# If no function specified - use default one.
query_text = self.processors.spaces_to_sign(query)
append('<td>')
try:
if type(system['query']) is str:
# Default queries are 'str' type.
pageData = self.downloader.get_web_page(system['query']+query_text)
else:
# Non-default are functions.
pageData = system['query'](self.downloader, query_text)
# REGEXP check of output data.
a = system['search_pattern'].search(pageData)
# if no match - we've got exception.
if a:
a = a.groups()[0]
try:
a.encode('UTF-8')
except:
pass
# Applying post-processing if required.
if system['processor']:
result = system['processor'](a)
else:
result = a
else:
raise Exception('Pattern error.')
except Exception as e:
# Log our error.
logging.info(" 'ERROR' => %s ~ %s ~ %s" % (system['name'], e,query))
# Result will give user message to try his request manually.
result = 'Ошибка, попробуйте вручную'
if __debug__:
# generating error's traceback (because errors are really silent here).
exc_type, exc_value, exc_traceback = sys.exc_info()
print "*** print_tb:"
traceback.print_tb(exc_traceback, limit=1, file=sys.stdout)
print "*** print_exception:"
traceback.print_exception(exc_type, exc_value, exc_traceback,
limit=2, file=sys.stdout)
print "*** print_exc:"
traceback.print_exc()
print "*** format_exc, first and last line:"
formatted_lines = traceback.format_exc().splitlines()
print formatted_lines[0]
print formatted_lines[-1]
print "*** format_exception:"
print repr(traceback.format_exception(exc_type, exc_value,
exc_traceback))
print "*** extract_tb:"
print repr(traceback.extract_tb(exc_traceback))
print "*** format_tb:"
print repr(traceback.format_tb(exc_traceback))
print "*** tb_lineno:", exc_traceback.tb_lineno
else:
pass
#historical_data[system] = result
finally:
result = '<a href="%s%s">%s</a>' % (system['query'] if type(system['query']) is str else system['face_query'],
query, result)
append(result)
append('</td>')
append('</tr>')
# If requests (any) were successful -> log it in DB for future generations ^_^
if historical_data:
# Optimization - we store query text only if queries were successful.
historical_data['query'] = query
historical_data['time'] =time.time()
self.mongod.add_history(historical_data)
# Weird sleep function to look less like bot.
sleep(randint(11000,28000)/10000)
append('</table>')
# Join all our outputs as almost good formatted html :)
output_text = '\n'.join(results_list)
# Add to our html section with source code for user to add to it's own page.
output_text = output_text + '\n<br><br>\n' + self.generate_code_tag(output_text)
return output_text
def generate_code_tag(self, html):
" Serving <pre> tag. Tag <pre> needs '<' and '>' to be escaped."
html = html.replace('<', '<').replace('>', '>')
html = '<div align="center"><h3>Код для вставки на свою страницу</h3></div><br>' \
'<pre class="prettyprint lang-html">' + html + '</pre>'
return html
