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-rw-r--r--net/http/codes.lua2
-rw-r--r--net/http/files.lua149
-rw-r--r--net/http/parser.lua4
-rw-r--r--net/http/server.lua104
4 files changed, 226 insertions, 33 deletions
diff --git a/net/http/codes.lua b/net/http/codes.lua
index 8098b5c3..4327f151 100644
--- a/net/http/codes.lua
+++ b/net/http/codes.lua
@@ -82,5 +82,5 @@ local response_codes = {
-- [512-599] = "Unassigned";
};
-for k,v in pairs(response_codes) do response_codes[k] = k.." "..v; end
+for k,v in pairs(response_codes) do response_codes[k] = ("%03d %s"):format(k, v); end
return setmetatable(response_codes, { __index = function(_, k) return k.." Unassigned"; end })
diff --git a/net/http/files.lua b/net/http/files.lua
new file mode 100644
index 00000000..583f7514
--- /dev/null
+++ b/net/http/files.lua
@@ -0,0 +1,149 @@
+-- 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.
+--
+
+local server = require"net.http.server";
+local lfs = require "lfs";
+local new_cache = require "util.cache".new;
+local log = require "util.logger".init("net.http.files");
+
+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 forbidden_chars_pattern = "[/%z]";
+if package.config:sub(1,1) == "\\" then
+ forbidden_chars_pattern = "[/%z\001-\031\127\"*:<>?|]"
+end
+
+local urldecode = require "util.http".urldecode;
+local function sanitize_path(path) --> util.paths or util.http?
+ if not path then return end
+ local out = {};
+
+ local c = 0;
+ for component in path:gmatch("([^/]+)") do
+ component = urldecode(component);
+ if component:find(forbidden_chars_pattern) then
+ return nil;
+ elseif component == ".." then
+ if c <= 0 then
+ return nil;
+ end
+ out[c] = nil;
+ c = c - 1;
+ elseif component ~= "." then
+ c = c + 1;
+ out[c] = component;
+ end
+ end
+ if path:sub(-1,-1) == "/" then
+ out[c+1] = "";
+ end
+ return "/"..table.concat(out, "/");
+end
+
+local function serve(opts)
+ if type(opts) ~= "table" then -- assume path string
+ opts = { path = opts };
+ end
+ local mime_map = opts.mime_map or { html = "text/html" };
+ local cache = new_cache(opts.cache_size or 256);
+ local cache_max_file_size = tonumber(opts.cache_max_file_size) or 1024
+ -- luacheck: ignore 431
+ local base_path = opts.path;
+ local dir_indices = opts.index_files or { "index.html", "index.htm" };
+ local directory_index = opts.directory_index;
+ local function serve_file(event, path)
+ local request, response = event.request, event.response;
+ local sanitized_path = sanitize_path(path);
+ if path and not sanitized_path then
+ return 400;
+ end
+ path = sanitized_path;
+ local orig_path = sanitize_path(request.path);
+ local full_path = base_path .. (path or ""):gsub("/", path_sep);
+ local attr = stat(full_path:match("^.*[^\\/]")); -- Strip trailing path separator because Windows
+ if not attr then
+ return 404;
+ end
+
+ 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 = ('"%x-%x-%x"'):format(attr.change 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:get(orig_path);
+ if data and data.etag == etag then
+ response_headers.content_type = data.content_type;
+ data = data.data;
+ cache:set(orig_path, data);
+ elseif attr.mode == "directory" and path then
+ if full_path:sub(-1) ~= "/" then
+ local dir_path = { is_absolute = true, is_directory = true };
+ for dir in orig_path:gmatch("[^/]+") do dir_path[#dir_path+1]=dir; end
+ response_headers.location = build_path(dir_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:set(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 not f then
+ log("debug", "Could not open %s. Error was %s", full_path, err);
+ return 403;
+ end
+ local ext = full_path:match("%.([^./]+)$");
+ local content_type = ext and mime_map[ext];
+ response_headers.content_type = content_type;
+ if attr.size > cache_max_file_size then
+ response_headers.content_length = ("%d"):format(attr.size);
+ log("debug", "%d > cache_max_file_size", attr.size);
+ return response:send_file(f);
+ else
+ data = f:read("*a");
+ f:close();
+ end
+ cache:set(orig_path, { data = data; content_type = content_type; etag = etag });
+ end
+
+ return response:send(data);
+ end
+
+ return serve_file;
+end
+
+return {
+ serve = serve;
+}
+
diff --git a/net/http/parser.lua b/net/http/parser.lua
index 4e4ae9fb..b328bdfe 100644
--- a/net/http/parser.lua
+++ b/net/http/parser.lua
@@ -63,7 +63,8 @@ function httpstream.new(success_cb, error_cb, parser_type, options_cb)
if buftable then buf, buftable = t_concat(buf), false; end
local index = buf:find("\r\n\r\n", nil, true);
if not index then return; end -- not enough data
- local method, path, httpversion, status_code, reason_phrase;
+ -- FIXME was reason_phrase meant to be passed on somewhere?
+ local method, path, httpversion, status_code, reason_phrase; -- luacheck: ignore reason_phrase
local first_line;
local headers = {};
for line in buf:sub(1,index+1):gmatch("([^\r\n]+)\r\n") do -- parse request
@@ -92,6 +93,7 @@ function httpstream.new(success_cb, error_cb, parser_type, options_cb)
chunked = have_body and headers["transfer-encoding"] == "chunked";
len = tonumber(headers["content-length"]); -- TODO check for invalid len
if len and len > bodylimit then error = true; return error_cb("content-length-limit-exceeded"); end
+ -- TODO ask a callback whether to proceed in case of large requests or Expect: 100-continue
if client then
-- FIXME handle '100 Continue' response (by skipping it)
if not have_body then len = 0; end
diff --git a/net/http/server.lua b/net/http/server.lua
index 18704962..f563d330 100644
--- a/net/http/server.lua
+++ b/net/http/server.lua
@@ -13,6 +13,8 @@ local traceback = debug.traceback;
local tostring = tostring;
local cache = require "util.cache";
local codes = require "net.http.codes";
+local promise = require "util.promise";
+local errors = require "util.error";
local blocksize = 2^16;
local _M = {};
@@ -170,6 +172,48 @@ local headerfix = setmetatable({}, {
end
});
+local function handle_result(request, response, result)
+ if result == nil then
+ result = 404;
+ end
+
+ if result == true then
+ return;
+ end
+
+ local body;
+ local result_type = type(result);
+ if result_type == "number" then
+ response.status_code = result;
+ if result >= 400 then
+ body = events.fire_event("http-error", { request = request, response = response, code = result });
+ end
+ elseif result_type == "string" then
+ body = result;
+ elseif errors.is_err(result) then
+ response.status_code = result.code or 500;
+ body = events.fire_event("http-error", { request = request, response = response, code = result.code or 500, error = result });
+ elseif promise.is_promise(result) then
+ result:next(function (ret)
+ handle_result(request, response, ret);
+ end, function (err)
+ handle_result(request, response, err or 500);
+ end);
+ return true;
+ elseif result_type == "table" then
+ for k, v in pairs(result) do
+ if k ~= "headers" then
+ response[k] = v;
+ else
+ for header_name, header_value in pairs(v) do
+ response.headers[header_name] = header_value;
+ end
+ end
+ end
+ end
+ return response:send(body);
+end
+
function _M.hijack_response(response, listener) -- luacheck: ignore
error("TODO");
end
@@ -194,8 +238,11 @@ function handle_request(conn, request, finish_cb)
response_conn_header = httpversion == "1.1" and "close" or nil
end
+ local is_head_request = request.method == "HEAD";
+
local response = {
request = request;
+ is_head_request = is_head_request;
status_code = 200;
headers = { date = date_header, connection = response_conn_header };
persistent = persistent;
@@ -227,6 +274,11 @@ function handle_request(conn, request, finish_cb)
local payload = { request = request, response = response };
log("debug", "Firing event: %s", global_event);
local result = events.fire_event(global_event, payload);
+ if result == nil and is_head_request then
+ local global_head_event = "GET "..request.path:match("[^?]*");
+ log("debug", "Firing event: %s", global_head_event);
+ result = events.fire_event(global_head_event, payload);
+ end
if result == nil then
if not hosts[host] then
if hosts[default_host] then
@@ -247,40 +299,17 @@ function handle_request(conn, request, finish_cb)
local host_event = request.method.." "..host..request.path:match("[^?]*");
log("debug", "Firing event: %s", host_event);
result = events.fire_event(host_event, payload);
- end
- if result ~= nil then
- if result ~= true then
- local body;
- local result_type = type(result);
- if result_type == "number" then
- response.status_code = result;
- if result >= 400 then
- payload.code = result;
- body = events.fire_event("http-error", payload);
- end
- elseif result_type == "string" then
- body = result;
- elseif result_type == "table" then
- for k, v in pairs(result) do
- if k ~= "headers" then
- response[k] = v;
- else
- for header_name, header_value in pairs(v) do
- response.headers[header_name] = header_value;
- end
- end
- end
- end
- response:send(body);
+
+ if result == nil and is_head_request then
+ local host_head_event = "GET "..host..request.path:match("[^?]*");
+ log("debug", "Firing event: %s", host_head_event);
+ result = events.fire_event(host_head_event, payload);
end
- return;
end
- -- if handler not called, return 404
- response.status_code = 404;
- payload.code = 404;
- response:send(events.fire_event("http-error", payload));
+ return handle_result(request, response, result);
end
+
local function prepare_header(response)
local status_line = "HTTP/"..response.request.httpversion.." "..(response.status or codes[response.status_code]);
local headers = response.headers;
@@ -292,16 +321,29 @@ local function prepare_header(response)
return output;
end
_M.prepare_header = prepare_header;
+function _M.send_head_response(response)
+ if response.finished then return; end
+ local output = prepare_header(response);
+ response.conn:write(t_concat(output));
+ response:done();
+end
function _M.send_response(response, body)
if response.finished then return; end
body = body or response.body or "";
- response.headers.content_length = #body;
+ response.headers.content_length = ("%d"):format(#body);
+ if response.is_head_request then
+ return _M.send_head_response(response)
+ end
local output = prepare_header(response);
t_insert(output, body);
response.conn:write(t_concat(output));
response:done();
end
function _M.send_file(response, f)
+ if response.is_head_request then
+ if f.close then f:close(); end
+ return _M.send_head_response(response);
+ end
if response.finished then return; end
local chunked = not response.headers.content_length;
if chunked then response.headers.transfer_encoding = "chunked"; end
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 12:29:32 +0000