Add gitano-smart-http cgi

1 files changed, 76 insertions, 0 deletions

diff --git a/bin/gitano-smart-http.cgi.in b/bin/gitano-smart-http.cgi.in
new file mode 100755
index 0000000..8fb0240
--- /dev/null
+++ b/bin/gitano-smart-http.cgi.in
@@ -0,0 +1,76 @@
+-- @@SHEBANG
+-- -*- Lua -*-
+-- gitano-smart-http
+--
+-- Git (with) Augmented network operations -- User authentication wrapper
+--
+-- Copyright 2014 Codethink Ltd
+--
+--
+
+-- @@GITANO_LUA_PATH
+
+local gitano = require "gitano"
+local gall = require "gall"
+local luxio = require "luxio"
+local subprocess = require "luxio.subprocess"
+local sio = require "luxio.simple"
+
+-- @@GITANO_BIN_PATH
+-- @@GITANO_SHARE_PATH
+
+local stdout = sio.stdout
+
+function parse_get_request()
+   query_string = os.getenv("QUERY_STRING")
+
+   if query_string then
+      command = string.gsub(query_string, "^service=", "")
+      repo = string.match(os.getenv("PATH_INFO"), '/(.+)/info/refs')
+      return command .. " '" .. repo .. "'"
+   end
+
+   return nil
+end
+
+function parse_post_request()
+   path_info = os.getenv("PATH_INFO")
+
+   if path_info then
+      repo, command = string.match(path_info, "/(.+)/(.+)")
+      return command .. " '" .. repo .. "'"
+   end
+
+   return nil
+end
+
+function parse_request(request_method)
+   if request_method == "GET" then
+      return parse_get_request()
+   elseif request_method == "POST" then
+      return parse_post_request()
+   end
+end
+
+request_method = os.getenv("REQUEST_METHOD")
+
+if request_method == "GET" or request_method == "POST" then
+   local user = os.getenv("REMOTE_USER") or "gitano/anonymous"
+   local cmdline = parse_request(request_method)
+
+   if cmdline and gitano.auth.is_authorized(user, "http", cmdline) then
+      local proc = subprocess.spawn_simple({"git", "http-backend"})
+      local exit_code
+
+      _, exit_code = proc:wait()
+
+      if exit_code ~= 0 then
+         stdout:write("Status: 500 Internal Server Error\r\n\r\n")
+      end
+   else
+      stdout:write("Status: 403 Forbidden\r\n\r\n")
+   end
+else
+   stdout:write("Status: 405 Method Not Allowed\r\n")
+   stdout:write("Allow: GET, POST\r\n\r\n")
+end