Configurable source language

Source language can now be set sitewide in SOURCE_LANGUAGE setting.
Closes #390

docs/admin/config.rst

@@ -345,6 +345,14 @@ SITE_TITLE
 
 Site title to be used in website and emails as well.
 
+.. setting:: SOURCE_LANGUAGE
+
+SOURCE_LANGUAGE
+---------------
+
+Source language used for translation. This is mostly useful for machine
+translation services.
+
 .. setting:: TTF_PATH
 
 TTF_PATH

docs/admin/machine.rst

@@ -11,6 +11,9 @@ up to administrator to enable them. The services have different terms of use, so
 please check whether you are allowed to use them before enabling in Weblate.
 The individual services are enabled using :setting:`MACHINE_TRANSLATION_SERVICES`.
 
+The source langauge can be configured by :setting:`SOURCE_LANGUAGE` and is
+shared for all translations within Weblate.
+
 Amagama
 +++++++
 

trans/machine/apertium.py

@@ -41,14 +41,14 @@ class ApertiumTranslation(MachineTranslation):
         data = self.json_status_req('http://api.apertium.org/json/listPairs')
         return [item['targetLanguage']
                 for item in data['responseData']
-                if item['sourceLanguage'] == 'en']
+                if item['sourceLanguage'] == appsettings.SOURCE_LANGUAGE]
 
     def download_translations(self, language, text, unit, user):
         '''
         Downloads list of possible translations from Apertium.
         '''
         args = {
-            'langpair': 'en|%s' % language,
+            'langpair': '%s|%s' % (appsettings.SOURCE_LANGUAGE, language),
             'q': text.encode('utf-8'),
         }
         if appsettings.MT_APERTIUM_KEY is not None:

trans/machine/glosbe.py

@@ -19,6 +19,7 @@
 #
 
 from trans.machine.base import MachineTranslation
+from weblate import appsettings
 
 
 class GlosbeTranslation(MachineTranslation):
@@ -44,7 +45,7 @@ class GlosbeTranslation(MachineTranslation):
         Downloads list of possible translations from a service.
         '''
         params = {
-            'from': 'en',
+            'from': appsettings.SOURCE_LANGUAGE,
             'dest': language,
             'format': 'json',
             'phrase': text.strip(',.:?! ').encode('utf-8')

trans/machine/google.py

@@ -67,7 +67,7 @@ class GoogleTranslation(MachineTranslation):
             'https://www.googleapis.com/language/translate/v2/',
             key=appsettings.MT_GOOGLE_KEY,
             q=text.encode('utf-8'),
-            source='en',
+            source=appsettings.SOURCE_LANGUAGE,
             target=language,
         )
 
@@ -99,7 +99,7 @@ class GoogleWebTranslation(MachineTranslation):
             'http://translate.google.com/translate_a/t',
             client='t',
             text=text.encode('utf-8'),
-            sl='en',
+            sl=appsettings.SOURCE_LANGUAGE,
             tl=language,
             ie='UTF-8',
             oe='UTF-8'

trans/machine/microsoft.py

@@ -117,7 +117,7 @@ class MicrosoftTranslation(MachineTranslation):
         '''
         args = {
             'text': text[:5000].encode('utf-8'),
-            'from': 'en',
+            'from': appsettings.SOURCE_LANGUAGE,
             'to': language,
             'contentType': 'text/plain',
             'category': 'general',

trans/machine/mymemory.py

@@ -70,7 +70,7 @@ class MyMemoryTranslation(MachineTranslation):
         '''
         args = {
             'q': text.split('. ')[0][:500].encode('utf-8'),
-            'langpair': 'en|%s' % language,
+            'langpair': '%s|%s' % (appsettings.SOURCE_LANGUAGE, language),
         }
         if appsettings.MT_MYMEMORY_EMAIL is not None:
             args['de'] = appsettings.MT_MYMEMORY_EMAIL

trans/machine/opentran.py

@@ -21,6 +21,8 @@
 from trans.machine.base import MachineTranslation
 import urllib
 
+from weblate import appsettings
+
 
 class OpenTranTranslation(MachineTranslation):
     '''
@@ -56,8 +58,8 @@ class OpenTranTranslation(MachineTranslation):
         Downloads list of possible translations from a service.
         '''
         response = self.json_req(
-            'http://en.%s.open-tran.eu/json/suggest/%s' % (
-                language, urllib.quote(text.encode('utf-8'))
+            'http://%s.%s.open-tran.eu/json/suggest/%s' % (
+                appsettings.SOURCE_LANGUAGE, language, urllib.quote(text.encode('utf-8'))
             )
         )
 

trans/machine/tmserver.py

@@ -20,9 +20,10 @@
 
 from trans.machine.base import MachineTranslation
 from django.core.exceptions import ImproperlyConfigured
-from weblate.appsettings import MT_TMSERVER
 import urllib
 
+from weblate import appsettings
+
 
 class TMServerTranslation(MachineTranslation):
     '''
@@ -41,12 +42,12 @@ class TMServerTranslation(MachineTranslation):
         '''
         Returns URL of a server.
         '''
-        if MT_TMSERVER is None:
+        if appsettings.MT_TMSERVER is None:
             raise ImproperlyConfigured(
                 'Not configured tmserver URL'
             )
 
-        return MT_TMSERVER.rstrip('/')
+        return appsettings.MT_TMSERVER.rstrip('/')
 
     def convert_language(self, language):
         '''
@@ -64,8 +65,9 @@ class TMServerTranslation(MachineTranslation):
         '''
         Downloads list of possible translations from a service.
         '''
-        url = '%s/tmserver/en/%s/unit/%s' % (
+        url = '%s/tmserver/%s/%s/unit/%s' % (
             self.url,
+            urllib.quote(appsettings.SOURCE_LANGUAGE),
             urllib.quote(language),
             urllib.quote(text.encode('utf-8')),
         )

weblate/appsettings.py

@@ -152,3 +152,6 @@ REGISTRATION_OPEN = get('REGISTRATION_OPEN', True)
 
 # Captcha for registrations
 REGISTRATION_CAPTCHA = get('REGISTRATION_CAPTCHA', True)
+
+# Source language
+SOURCE_LANGUAGE = get('SOURCE_LANGUAGE', 'en')