How do I configure the app.yaml file to redirect all URLs to another URL? For example I want http://example.appspot.com/hello or http://example.appspot.com/hello28928723 to redirect to http://example.com.
I am only serving static files at the moment. Here is my app.yaml file:
application: testapp
version: 1
runtime: python
api_version: 1
handlers:
- url: (.*)/
static_files: static\1/index.html
upload: static/index.html
- url: /
static_dir: static
Webapp2 has a built-in redirect handler
No need to roll your own handler; webapp2 already comes with one.
application = webapp2.WSGIApplication([
webapp2.Route('/hello', webapp2.RedirectHandler, defaults={'_uri':'http://example.com'}),
webapp2.Route('/hello28928723', webapp2.RedirectHandler, defaults={'_uri':'http://example.com'}),
], debug=False)
The _uri argument is what the RedirectHandler class uses to define the destination. It took a lot of Google Fu to find the documentation on this but it works flawlessly in my app.
I assumed you're aware of this but you need to change your catch-all route from:
- url: /
static_dir: static
To (python27 version):
- url: /.*
script: main.application
Or: (pre python27 version)
- url: /.*
script: main.py
main.py is the file containing the request handler + routes.
Note: There is no static-only way to handle redirects on GAE because of the nature of static files. Basically, there's no way to do a redirect in app.yaml alone.
All you need (replace app-id, http://example.com):
app.yaml:
application: app-id
version: 1
runtime: python27
api_version: 1
threadsafe: false
handlers:
- url: /.*
script: main.py
main.py:
from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
class AllHandler(webapp.RequestHandler):
def get(self):
self.redirect("http://example.com", True)
application = webapp.WSGIApplication([('/.*', AllHandler)])
def main():
run_wsgi_app(application)
if __name__ == "__main__":
main()
you can redirect all requests easily with a python handler. Something like
class FormHandler(webapp.RequestHandler):
def post(self):
if processFormData(self.request):
self.redirect("http://example.com")
If you want a static-files-only way to do "redirects" then do this:
In the app.yaml, put this as the catch-all, at the end of the file:
- url: /.*
static_files: root/redirect.html
upload: root/redirect.html
Then in the root/redirect.html file, put this:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="refresh" content="0;URL=/" />
<script>
location.replace("/");
</script>
</head>
<body></body>
</html>
This example will redirect all unknown URLs to the root (i.e., / ). If you want another URL, just substitute http://example.com in the appropriate places.
Here is a python script that will do the redirect:
from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
class MainPage(webapp.RequestHandler):
def get(self, path):
self.redirect("http://example.com", permanent=True)
def head(self, path):
self.redirect("http://example.com", permanent=True)
application = webapp.WSGIApplication(
[
(r'^(.*)', MainPage)
])
def main():
run_wsgi_app(application)
if __name__ == "__main__":
main()
Riffing off Evan's answer, to redirect all requests you could use regexes to do something like:
import webapp2
from webapp2_extras.routes import RedirectRoute
app = webapp2.WSGIApplication([
RedirectRoute('/<:.*>', redirect_to='/')
], debug=False)
For official docs check out:
https://webapp2.readthedocs.io/en/latest/guide/routing.html
https://webapp2.readthedocs.io/en/latest/api/webapp2.html#webapp2.Route.init
The redirect handler for webapp2 (webapp2.RedirectHandler) mentioned in a previous answer will not work for post requests, as it does not contain a post method (see https://github.com/GoogleCloudPlatform/webapp2/blob/master/webapp2.py), so you will need to roll your own python handler if concerned with posts. Something like the following:
import webapp2
class MainPage(webapp2.RequestHandler):
def post(self):
self.redirect('http://example.com')
application = webapp2.WSGIApplication([
('/.*', MainPage)
], debug=False)
