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Diffstat (limited to 'vendor/gems/rack-1.1.0/lib/rack/sendfile.rb')
| -rw-r--r-- | vendor/gems/rack-1.1.0/lib/rack/sendfile.rb | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/vendor/gems/rack-1.1.0/lib/rack/sendfile.rb b/vendor/gems/rack-1.1.0/lib/rack/sendfile.rb deleted file mode 100644 index 4fa829462..000000000 --- a/vendor/gems/rack-1.1.0/lib/rack/sendfile.rb +++ /dev/null @@ -1,142 +0,0 @@ -require 'rack/file' - -module Rack - class File #:nodoc: - alias :to_path :path - end - - # = Sendfile - # - # The Sendfile middleware intercepts responses whose body is being - # served from a file and replaces it with a server specific X-Sendfile - # header. The web server is then responsible for writing the file contents - # to the client. This can dramatically reduce the amount of work required - # by the Ruby backend and takes advantage of the web servers optimized file - # delivery code. - # - # In order to take advantage of this middleware, the response body must - # respond to +to_path+ and the request must include an X-Sendfile-Type - # header. Rack::File and other components implement +to_path+ so there's - # rarely anything you need to do in your application. The X-Sendfile-Type - # header is typically set in your web servers configuration. The following - # sections attempt to document - # - # === Nginx - # - # Nginx supports the X-Accel-Redirect header. This is similar to X-Sendfile - # but requires parts of the filesystem to be mapped into a private URL - # hierarachy. - # - # The following example shows the Nginx configuration required to create - # a private "/files/" area, enable X-Accel-Redirect, and pass the special - # X-Sendfile-Type and X-Accel-Mapping headers to the backend: - # - # location /files/ { - # internal; - # alias /var/www/; - # } - # - # location / { - # proxy_redirect false; - # - # proxy_set_header Host $host; - # proxy_set_header X-Real-IP $remote_addr; - # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; - # - # proxy_set_header X-Sendfile-Type X-Accel-Redirect - # proxy_set_header X-Accel-Mapping /files/=/var/www/; - # - # proxy_pass http://127.0.0.1:8080/; - # } - # - # Note that the X-Sendfile-Type header must be set exactly as shown above. The - # X-Accel-Mapping header should specify the name of the private URL pattern, - # followed by an equals sign (=), followed by the location on the file system - # that it maps to. The middleware performs a simple substitution on the - # resulting path. - # - # See Also: http://wiki.codemongers.com/NginxXSendfile - # - # === lighttpd - # - # Lighttpd has supported some variation of the X-Sendfile header for some - # time, although only recent version support X-Sendfile in a reverse proxy - # configuration. - # - # $HTTP["host"] == "example.com" { - # proxy-core.protocol = "http" - # proxy-core.balancer = "round-robin" - # proxy-core.backends = ( - # "127.0.0.1:8000", - # "127.0.0.1:8001", - # ... - # ) - # - # proxy-core.allow-x-sendfile = "enable" - # proxy-core.rewrite-request = ( - # "X-Sendfile-Type" => (".*" => "X-Sendfile") - # ) - # } - # - # See Also: http://redmine.lighttpd.net/wiki/lighttpd/Docs:ModProxyCore - # - # === Apache - # - # X-Sendfile is supported under Apache 2.x using a separate module: - # - # http://tn123.ath.cx/mod_xsendfile/ - # - # Once the module is compiled and installed, you can enable it using - # XSendFile config directive: - # - # RequestHeader Set X-Sendfile-Type X-Sendfile - # ProxyPassReverse / http://localhost:8001/ - # XSendFile on - - class Sendfile - F = ::File - - def initialize(app, variation=nil) - @app = app - @variation = variation - end - - def call(env) - status, headers, body = @app.call(env) - if body.respond_to?(:to_path) - case type = variation(env) - when 'X-Accel-Redirect' - path = F.expand_path(body.to_path) - if url = map_accel_path(env, path) - headers[type] = url - body = [] - else - env['rack.errors'] << "X-Accel-Mapping header missing" - end - when 'X-Sendfile', 'X-Lighttpd-Send-File' - path = F.expand_path(body.to_path) - headers[type] = path - body = [] - when '', nil - else - env['rack.errors'] << "Unknown x-sendfile variation: '#{variation}'.\n" - end - end - [status, headers, body] - end - - private - def variation(env) - @variation || - env['sendfile.type'] || - env['HTTP_X_SENDFILE_TYPE'] - end - - def map_accel_path(env, file) - if mapping = env['HTTP_X_ACCEL_MAPPING'] - internal, external = mapping.split('=', 2).map{ |p| p.strip } - file.sub(/^#{internal}/i, external) - end - end - end -end |