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-- @@SHEBANG
-- -*- Lua -*-
-- command cgi
--
-- 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 sio = require "luxio.simple"
-- @@GITANO_BIN_PATH
-- @@GITANO_SHARE_PATH
-- @@GITANO_PLUGIN_PATH
local stdout = sio.stdout
function url_decode(str)
str = string.gsub (str, "+", " ")
str = string.gsub (str, "%%(%x%x)",
function(h) return string.char(tonumber(h,16)) end)
str = string.gsub (str, "\r\n", "\n")
return str
end
function run_command(cmd, cmdline, parsed_cmdline, user, config, env, repo)
gitano.log.debug("Welcome to " .. config.global.site_name)
gitano.log.debug("Running:")
for i = 1, #parsed_cmdline do
gitano.log.debug(" => " .. parsed_cmdline[i])
end
gitano.log.debug("")
gitano.log.debug("On behalf of " .. user .. " using key " .. env["GITANO_KEYTAG"])
local how, why = cmd.run(config, repo, parsed_cmdline, env)
if how ~= "exit" or why ~= 0 then
gitano.log.critical("Error running " .. parsed_cmdline[1] .. ": " .. how)
return why
else
gitano.log.syslog.info(cmdline, "completed successfully")
return 0
end
end
if os.getenv("QUERY_STRING") then
local query_string = url_decode(os.getenv("QUERY_STRING"))
local cmdline = query_string
local _, e = string.find(query_string, "cmd=")
if not e then
stdout:write("Status: 400 Bad request\r\n\r\n")
stdout:write("Malformed command line, format: ?cmd=arg0 arg1 ... argn\n")
return
end
cmdline = string.sub(query_string, e + 1, #query_string)
if cmdline == '' then
stdout:write("Status: 400 Bad request\r\n\r\n")
stdout:write("Malformed command line, format: ?cmd=arg0 arg1 ... argn\n")
return
end
local user = os.getenv("REMOTE_USER") or "gitano/anonymous"
gitano.log.buffer_output()
local authorized, cmd, parsed_cmdline, config, env, repo =
gitano.auth.is_authorized(user, "http", cmdline)
if authorized then
local exit = run_command(cmd, cmdline, parsed_cmdline,
user, config, env, repo)
stdout:write("Status: " .. (exit == 0 and "200 OK" or "400 Bad request")
.. "\r\n\r\n")
stdout:write(gitano.log.get_buffered_output() or "")
else
stdout:write("Status: 403 Forbidden\r\n\r\n")
stdout:write(gitano.log.get_buffered_output() or "")
end
else
stdout:write("Status: 400 Bad request\r\n\r\n")
stdout:write("Malformed command line, format: ?cmd=arg0 arg1 ... argn\n")
end
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