forked from robertkrimen/gist-it
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Refactored dispatching into gist_it/appengine.py
- Loading branch information
1 parent
afcff53
commit 4c38390
Showing
3 changed files
with
96 additions
and
71 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
File renamed without changes.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| #!/usr/bin/python | ||
| import logging | ||
| import os | ||
| import cgi | ||
| import sys | ||
| import urllib | ||
|
|
||
| jinja2 = None | ||
|
|
||
| _LOCAL_ = os.environ[ 'SERVER_SOFTWARE' ].startswith( 'Development' ) | ||
| _DEBUG_ = True | ||
| _CACHE_ = False | ||
|
|
||
| from google.appengine.api import urlfetch | ||
| from google.appengine.ext import webapp | ||
| from versioned_memcache import memcache | ||
|
|
||
| import gist_it | ||
| from gist_it import take_slice | ||
|
|
||
| def render_gist_html( base, gist, document ): | ||
| if jinja2 is None: | ||
| return | ||
| result = jinja2.get_template( 'gist.jinja.html' ).render( cgi = cgi, base = base, gist = gist, document = document ) | ||
| return result | ||
|
|
||
| def render_gist_js( base, gist, gist_html ): | ||
| if jinja2 is None: | ||
| return | ||
| result = jinja2.get_template( 'gist.jinja.js' ).render( base = base, gist = gist, gist_html = gist_html ) | ||
| return result | ||
|
|
||
| def render_gist_js_callback( callback, gist, gist_html ): | ||
| return "%s( '%s', '%s' );" % ( callback, gist_html.encode( 'string_escape' ), gist.raw_path ) | ||
|
|
||
| # dispatch == RequestHandler | ||
| def dispatch_gist_it( dispatch, location ): | ||
| base = dispatch.url_for() | ||
| location = urllib.unquote( location ) | ||
| match = gist_it.Gist.match( location ) | ||
| dispatch.response.headers['Content-Type'] = 'text/plain'; | ||
| if not match: | ||
| dispatch.response.set_status( 404 ) | ||
| dispatch.response.out.write( dispatch.response.http_status_message( 404 ) ) | ||
| dispatch.response.out.write( "\n" ) | ||
| return | ||
|
|
||
| else: | ||
| gist = gist_it.Gist.parse( location, slice_ = dispatch.request.get( 'slice' ) ) | ||
| if not gist: | ||
| dispatch.response.set_status( 500 ) | ||
| dispatch.response.out.write( "Unable to parse \"%s\": Not a valid repository path?" % ( location ) ) | ||
| dispatch.response.out.write( "\n" ) | ||
| return | ||
|
|
||
| if _CACHE_ and dispatch.request.get( 'flush' ): | ||
| dispatch.response.out.write( memcache.delete( memcache_key ) ) | ||
| return | ||
|
|
||
| memcache_key = gist.raw_url | ||
| data = memcache.get( memcache_key ) | ||
| if data is None or not _CACHE_: | ||
| # For below, see: http://stackoverflow.com/questions/2826238/does-google-appengine-cache-external-requests | ||
| response = urlfetch.fetch( gist.raw_url, headers = { 'Cache-Control': 'max-age=300' } ) | ||
| if response.status_code != 200: | ||
| if response.status_code == 403: | ||
| dispatch.response.set_status( response.status_code ) | ||
| elif response.status_code == 404: | ||
| dispatch.response.set_status( response.status_code ) | ||
| else: | ||
| dispatch.response.set_status( 500 ) | ||
| dispatch.response.out.write( "Unable to fetch \"%s\": (%i)" % ( gist.raw_url, response.status_code ) ) | ||
| return | ||
| else: | ||
| gist_content = take_slice( response.content, gist.start_line, gist.end_line ) | ||
| if dispatch.request.get( 'test' ): | ||
| dispatch.response.headers['Content-Type'] = 'text/plain'; | ||
| dispatch.response.out.write( gist_content ) | ||
| return | ||
| gist_html = str( render_gist_html( base, gist, gist_content ) ).strip() | ||
| callback = dispatch.request.get( 'callback' ); | ||
| if callback != '': | ||
| result = render_gist_js_callback( callback, gist, gist_html ) | ||
| else: | ||
| result = render_gist_js( base, gist, gist_html ) | ||
| result = str( result ).strip() | ||
| data = result | ||
| if _CACHE_: | ||
| memcache.add( memcache_key, data, 60 * 60 * 24 ) | ||
|
|
||
| dispatch.response.headers['Content-Type'] = 'text/javascript'; | ||
| dispatch.response.out.write( data ) | ||
|
|