[enh][mod] code refactor ++ search engine filtering

1 files changed, 94 insertions, 0 deletions

diff --git a/searx/search.py b/searx/search.py
new file mode 100644
index 000000000..2727624bd
--- /dev/null
+++ b/searx/search.py
@@ -0,0 +1,94 @@
+from searx.engines import (
+    categories, engines, engine_shortcuts
+)
+from searx.languages import language_codes
+
+
+class Search(object):
+
+    """Search information container"""
+
+    def __init__(self, request):
+        super(Search, self).__init__()
+        self.query = None
+        self.engines = []
+        self.categories = []
+        query_engines = []
+        self.paging = False
+        self.pageno = 1
+        self.lang = 'all'
+        if request.cookies.get('blocked_engines'):
+            self.blocked_engines = request.cookies['blocked_engines'].split(',')
+        else:
+            self.blocked_engines = []
+        self.results = []
+        self.suggestions = []
+        self.request_data = {}
+
+        if request.cookies.get('language')\
+           and request.cookies['language'] in (x[0] for x in language_codes):
+            self.lang = request.cookies['language']
+
+        if request.method == 'POST':
+            self.request_data = request.form
+        else:
+            self.request_data = request.args
+
+        # TODO better exceptions
+        if not self.request_data.get('q'):
+            raise Exception('noquery')
+
+        self.query = self.request_data['q']
+
+        pageno_param = self.request_data.get('pageno', '1')
+        if not pageno_param.isdigit() or int(pageno_param) < 1:
+            raise Exception('wrong pagenumber')
+
+        self.pageno = int(pageno_param)
+
+        query_parts = self.query.split()
+        if query_parts[0].startswith('!'):
+            prefix = query_parts[0][1:].replace('_', ' ')
+            if prefix in engine_shortcuts\
+               and not engine_shortcuts[prefix] in self.blocked_engines:
+                self.engines.append({'category': 'none',
+                                     'name': engine_shortcuts[prefix]})
+            elif prefix in engines\
+                    and not prefix in self.blocked_engines:
+                self.engines.append({'category': 'none',
+                                    'name': prefix})
+            elif prefix in categories:
+                self.engines.extend({'category': prefix,
+                                    'name': engine.name}
+                                    for engine in categories[prefix]
+                                    if not engine in self.blocked_engines)
+
+        if len(query_engines):
+            self.query = self.query.replace(query_parts[0], '', 1).strip()
+
+        self.categories = []
+
+        if len(self.engines):
+            self.categories = list(set(engine['category']
+                                           for engine in self.engines))
+        else:
+            for pd_name, pd in self.request_data.items():
+                if pd_name.startswith('category_'):
+                    category = pd_name[9:]
+                    if not category in categories:
+                        continue
+                    self.categories.append(category)
+            if not len(self.categories):
+                cookie_categories = request.cookies.get('categories', '')
+                cookie_categories = cookie_categories.split(',')
+                for ccateg in cookie_categories:
+                    if ccateg in categories:
+                        self.categories.append(ccateg)
+            if not len(self.categories):
+                self.categories = ['general']
+
+            for categ in self.categories:
+                self.engines.extend({'category': categ,
+                                     'name': x.name}
+                                    for x in categories[categ]
+                                    if not x.name in self.blocked_engines)