[enh] configurable localization

Makefile

 minimal: bin/buildout minimal.cfg setup.py
 	bin/buildout -c minimal.cfg $(options)
 
+locales:
+	@pybabel compile -d searx/translations
+
 clean:
 	@rm -rf .installed.cfg .mr.developer.cfg bin parts develop-eggs \
 		searx.egg-info lib include .coverage coverage
 
-.PHONY: all tests robot flake8 coverage production minimal clean
+.PHONY: all tests robot flake8 coverage production minimal locales clean

searx/settings.yml

     title_xpath : ./a/div[@class="data"]/p[@class="title"]/text()
     content_xpath : ./a/img/@src
 
-languages:
+locales:
     en : English
     hu : Magyar

searx/static/css/style.css

 
 input[type="checkbox"] { visibility: hidden; }
 
+fieldset { margin: 8px; }
+
 #categories { margin: 0 10px; }
 
 .checkbox_container { display: inline-block; position: relative; margin: 0 3px; padding: 0px; }

searx/templates/categories.html

 <div id="categories">
 {% for category in categories %}
     <div class="checkbox_container">
-        <input type="checkbox" id="checkbox_{{ category|replace(' ', '_') }}" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} /><label for="checkbox_{{ category|replace(' ', '_') }}">{{ category }}</label>
+        <input type="checkbox" id="checkbox_{{ category|replace(' ', '_') }}" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} /><label for="checkbox_{{ category|replace(' ', '_') }}">{{ _(category) }}</label>
     </div>
 {% endfor %}
 </div>

searx/templates/preferences.html

     <h2>{{ _('Preferences') }}</h2>
 
 
+    <form method="post" action="/preferences" id="search_form">
     <fieldset>
         <legend>{{ _('Default categories') }}</legend>
-        <form method="post" action="/preferences" id="search_form">
         <p>
         {% include 'categories.html' %}
         </p>
-        <input type="submit" value="{{ _('save') }}" />
-        </form>
     </fieldset>
+    <fieldset>
+        <legend>{{ _('Interface language') }}</legend>
+        <p>
+        <select name='locale'>
+            {% for locale_id,locale_name in locales.items() %}
+            <option value={{ locale_id }} {% if locale_id == current_locale %}selected="selected"{% endif %}>{{ locale_name}}</option>
+            {% endfor %}
+        </select>
+        </p>
+    </fieldset>
+    <input type="submit" value="{{ _('save') }}" />
+    </form>
     <div class="right"><a href="/">{{ _('back') }}</a></div>
 </div>
 {% endblock %}

searx/webapp.py

 
 @babel.localeselector
 def get_locale():
-    return request.accept_languages.best_match(settings['languages'].keys())
+    locale = request.accept_languages.best_match(settings['locales'].keys())
+
+    if request.cookies.get('locale', '') in settings['locales']:
+        locale = request.cookies.get('locale', '')
+
+    if 'locale' in request.args\
+       and request.args['locale'] in settings['locales']:
+        locale = request.args['locale']
+
+    if 'locale' in request.form\
+       and request.form['locale'] in settings['locales']:
+        locale = request.form['locale']
+
+    return locale
 
 
 def get_base_url():
 
     if request.method == 'POST':
         selected_categories = []
+        locale = None
         for pd_name, pd in request.form.items():
             if pd_name.startswith('category_'):
                 category = pd_name[9:]
                 if not category in categories:
                     continue
                 selected_categories.append(category)
+            elif pd_name == 'locale' and pd in settings['locales']:
+                locale = pd
+
+        resp = make_response(redirect('/'))
+
+        if locale:
+            # cookie max age: 4 weeks
+            resp.set_cookie(
+                'locale', locale,
+                max_age=60 * 60 * 24 * 7 * 4
+            )
+
         if selected_categories:
-            resp = make_response(redirect('/'))
             # cookie max age: 4 weeks
             resp.set_cookie(
                 'categories', ','.join(selected_categories),
                 max_age=60 * 60 * 24 * 7 * 4
             )
-            return resp
-    return render('preferences.html')
+        return resp
+    return render('preferences.html'
+                  ,locales=settings['locales']
+                  ,current_locale=get_locale())
 
 
 @app.route('/stats', methods=['GET'])

setup.py

 
 setup(
     name='searx',
-    version="0.1.1",
-    description="",
+    version="0.1.2",
+    description="A privacy-respecting, hackable metasearch engine",
     long_description=long_description,
     classifiers=[
         "Programming Language :: Python",
             'settings.yml',
             '../README.rst',
             'static/*/*',
+            'translations/*/*',
             'templates/*.html',
             'templates/result_templates/*.html',
         ],