X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=plugins%2Fmod_http_files.lua;h=2e9f418298ff244614312d2fafd553e2e2371559;hb=762427887bb2315dcd34e1e0528d366a10b38e93;hp=c585928306ddeae0069f7526436282f6891096f6;hpb=af3e5c0bd7f39824c3e90ef2cb501d95d4d96e04;p=prosody.git diff --git a/plugins/mod_http_files.lua b/plugins/mod_http_files.lua index c5859283..2e9f4182 100644 --- a/plugins/mod_http_files.lua +++ b/plugins/mod_http_files.lua @@ -1,78 +1,154 @@ -- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain --- +-- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- module:depends("http"); +local server = require"net.http.server"; local lfs = require "lfs"; +local os_date = os.date; local open = io.open; local stat = lfs.attributes; +local build_path = require"socket.url".build_path; +local path_sep = package.config:sub(1,1); + +local base_path = module:get_option_string("http_files_dir", module:get_option_string("http_path")); +local dir_indices = module:get_option("http_index_files", { "index.html", "index.htm" }); +local directory_index = module:get_option_boolean("http_dir_listing"); + +local mime_map = module:shared("/*/http_files/mime").types; +if not mime_map then + mime_map = { + html = "text/html", htm = "text/html", + xml = "application/xml", + txt = "text/plain", + css = "text/css", + js = "application/javascript", + png = "image/png", + gif = "image/gif", + jpeg = "image/jpeg", jpg = "image/jpeg", + svg = "image/svg+xml", + }; + module:shared("/*/http_files/mime").types = mime_map; + + local mime_types, err = open(module:get_option_string("mime_types_file", "/etc/mime.types"),"r"); + if mime_types then + local mime_data = mime_types:read("*a"); + mime_types:close(); + setmetatable(mime_map, { + __index = function(t, ext) + local typ = mime_data:match("\n(%S+)[^\n]*%s"..(ext:lower()).."%s") or "application/octet-stream"; + t[ext] = typ; + return typ; + end + }); + end +end + +local cache = setmetatable({}, { __mode = "kv" }); -- Let the garbage collector have it if it wants to. -local http_base = module:get_option_string("http_path", "www_files"); - --- TODO: Should we read this from /etc/mime.types if it exists? (startup time...?) -local mime_map = { - html = "text/html"; - htm = "text/html"; - xml = "text/xml"; - xsl = "text/xml"; - txt = "text/plain; charset=utf-8"; - js = "text/javascript"; - css = "text/css"; -}; - -local function preprocess_path(path) - if path:sub(1,1) ~= "/" then - path = "/"..path; +function serve(opts) + if type(opts) ~= "table" then -- assume path string + opts = { path = opts }; end - local level = 0; - for component in path:gmatch("([^/]+)/") do - if component == ".." then - level = level - 1; - elseif component ~= "." then - level = level + 1; + local base_path = opts.path; + local dir_indices = opts.index_files or dir_indices; + local directory_index = opts.directory_index; + local function serve_file(event, path) + local request, response = event.request, event.response; + local orig_path = request.path; + local full_path = base_path .. (path and "/"..path or ""); + local attr = stat((full_path:gsub('%'..path_sep..'+$',''))); + if not attr then + return 404; end - if level < 0 then - return nil; + + local request_headers, response_headers = request.headers, response.headers; + + local last_modified = os_date('!%a, %d %b %Y %H:%M:%S GMT', attr.modification); + response_headers.last_modified = last_modified; + + local etag = ("%02x-%x-%x-%x"):format(attr.dev or 0, attr.ino or 0, attr.size or 0, attr.modification or 0); + response_headers.etag = etag; + + local if_none_match = request_headers.if_none_match + local if_modified_since = request_headers.if_modified_since; + if etag == if_none_match + or (not if_none_match and last_modified == if_modified_since) then + return 304; end + + local data = cache[orig_path]; + if data and data.etag == etag then + response_headers.content_type = data.content_type; + data = data.data; + elseif attr.mode == "directory" and path then + if full_path:sub(-1) ~= "/" then + local path = { is_absolute = true, is_directory = true }; + for dir in orig_path:gmatch("[^/]+") do path[#path+1]=dir; end + response_headers.location = build_path(path); + return 301; + end + for i=1,#dir_indices do + if stat(full_path..dir_indices[i], "mode") == "file" then + return serve_file(event, path..dir_indices[i]); + end + end + + if directory_index then + data = server._events.fire_event("directory-index", { path = request.path, full_path = full_path }); + end + if not data then + return 403; + end + cache[orig_path] = { data = data, content_type = mime_map.html; etag = etag; }; + response_headers.content_type = mime_map.html; + + else + local f, err = open(full_path, "rb"); + if f then + data, err = f:read("*a"); + f:close(); + end + if not data then + module:log("debug", "Could not open or read %s. Error was %s", full_path, err); + return 403; + end + local ext = full_path:match("%.([^./]+)$"); + local content_type = ext and mime_map[ext]; + cache[orig_path] = { data = data; content_type = content_type; etag = etag }; + response_headers.content_type = content_type; + end + + return response:send(data); end - return path; + + return serve_file; end -function serve_file(event, path) - local response = event.response; - path = path and preprocess_path(path); - if not path then - return 400; - end - local full_path = http_base..path; - if stat(full_path, "mode") == "directory" then - if stat(full_path.."/index.html", "mode") == "file" then - return serve_file(event, path.."/index.html"); +function wrap_route(routes) + for route,handler in pairs(routes) do + if type(handler) ~= "function" then + routes[route] = serve(handler); end - return 403; - end - local f, err = open(full_path, "rb"); - if not f then - return 404; - end - local data = f:read("*a"); - f:close(); - if not data then - return 403; end - local ext = path:match("%.([^.]*)$"); - response.headers.content_type = mime_map[ext]; -- Content-Type should be nil when not known - return response:send(data); + return routes; end -module:provides("http", { - route = { - ["/*"] = serve_file; - }; -}); +if base_path then + module:provides("http", { + route = { + ["GET /*"] = serve { + path = base_path; + directory_index = directory_index; + } + }; + }); +else + module:log("debug", "http_files_dir not set, assuming use by some other module"); +end