diff options
Diffstat (limited to 'libs/httpd/luasrc')
| -rw-r--r-- | libs/httpd/luasrc/httpd.lua | 57 | ||||
| -rw-r--r-- | libs/httpd/luasrc/httpd/handler/file.lua | 16 | ||||
| -rw-r--r-- | libs/httpd/luasrc/httpd/handler/luci.lua | 56 | ||||
| -rw-r--r-- | libs/httpd/luasrc/httpd/module.lua | 26 | ||||
| -rw-r--r-- | libs/httpd/luasrc/httpd/server.lua | 163 |
5 files changed, 222 insertions, 96 deletions
diff --git a/libs/httpd/luasrc/httpd.lua b/libs/httpd/luasrc/httpd.lua index 8cd946f33..82f1be97d 100644 --- a/libs/httpd/luasrc/httpd.lua +++ b/libs/httpd/luasrc/httpd.lua @@ -13,23 +13,41 @@ $Id$ ]]-- -require("ltn12") +module("luci.httpd", package.seeall) require("socket") require("luci.util") +function Socket(ip, port) + local sock, err = socket.bind( ip, port ) + + if sock then + sock:settimeout( 0, "t" ) + end + + return sock, err +end + Daemon = luci.util.class() -function Daemon.__init__(self, threadlimit) +function Daemon.__init__(self, threadlimit, timeout) self.reading = {} self.running = {} self.handler = {} + self.debug = false self.threadlimit = threadlimit + self.timeout = timeout or 0.1 end -function Daemon.register(self, socket, clhandler, errhandler) - table.insert( self.reading, socket ) - self.handler[socket] = { clhandler = clhandler, errhandler = errhandler } +function Daemon.dprint(self, msg) + if self.debug then + io.stderr:write("[daemon] " .. msg .. "\n") + end +end + +function Daemon.register(self, sock, clhandler, errhandler) + table.insert( self.reading, sock ) + self.handler[sock] = { clhandler = clhandler, errhandler = errhandler } end function Daemon.run(self) @@ -39,7 +57,11 @@ function Daemon.run(self) end function Daemon.step(self) - local input = socket.select( self.reading, nil, 0 ) + local input, output, err = socket.select( self.reading, nil, 0 ) + + if err == "timeout" and #self.running == 0 then + socket.sleep(self.timeout) + end -- accept new connections for i, connection in ipairs(input) do @@ -47,19 +69,25 @@ function Daemon.step(self) local sock = connection:accept() -- check capacity - if self.threadlimit and #running < self.threadlimit then + if not self.threadlimit or #self.running < self.threadlimit then + + self:dprint("Accepted incoming connection from " .. sock:getpeername()) table.insert( self.running, { coroutine.create( self.handler[connection].clhandler ), sock } ) + self:dprint("Created " .. tostring(self.running[#self.running][1])) + -- reject client else + self:dprint("Rejected incoming connection from " .. sock:getpeername()) + if self.handler[connection].errhandler then self.handler[connection].errhandler( sock ) end - + sock:close() end end @@ -69,9 +97,18 @@ function Daemon.step(self) -- reap dead clients if coroutine.status( client[1] ) == "dead" then + self:dprint("Completed " .. tostring(client[1])) table.remove( self.running, i ) - end + else + self:dprint("Resuming " .. tostring(client[1])) + + local stat, err = coroutine.resume( client[1], client[2] ) + + self:dprint(tostring(client[1]) .. " returned") - coroutine.resume( client[1], client[2] ) + if not stat then + self:dprint("Error in " .. tostring(client[1]) .. " " .. err) + end + end end end diff --git a/libs/httpd/luasrc/httpd/handler/file.lua b/libs/httpd/luasrc/httpd/handler/file.lua index eb5aafd78..83549f338 100644 --- a/libs/httpd/luasrc/httpd/handler/file.lua +++ b/libs/httpd/luasrc/httpd/handler/file.lua @@ -12,11 +12,17 @@ function Simple.__init__(self, docroot) end function Simple.handle(self, request, sourcein, sinkerr) - local file = self.docroot .. request.env.REQUEST_URI:gsub("../", "") - local size = luci.fs.stat(file, "size") - if size then - return Response(200, {["Content-Length"] = size}), ltn12.source.file(io.open(file)) + local uri = request.env.PATH_INFO + local file = self.docroot .. uri:gsub("%.%./", "") + local stat = luci.fs.stat(file) + + if stat then + if stat.type == "regular" then + return Response(200, {["Content-Length"] = stat.size}), ltn12.source.file(io.open(file)) + else + return self:failure(403, "Unable to transmit " .. stat.type .. " " .. uri) + end else - return Response(404) + return self:failure(404, "No such file: " .. uri) end end
\ No newline at end of file diff --git a/libs/httpd/luasrc/httpd/handler/luci.lua b/libs/httpd/luasrc/httpd/handler/luci.lua new file mode 100644 index 000000000..e4916bd2c --- /dev/null +++ b/libs/httpd/luasrc/httpd/handler/luci.lua @@ -0,0 +1,56 @@ +module("luci.httpd.handler.luci", package.seeall) +require("luci.dispatcher") +require("luci.http") +require("ltn12") + +Luci = luci.util.class(luci.httpd.module.Handler) +Response = luci.httpd.module.Response + +function Luci.__init__(self) + luci.httpd.module.Handler.__init__(self) +end + +function Luci.handle(self, request, sourcein, sinkerr) + local r = luci.http.Request( + request.env, + sourcein, + sinkerr + ) + + local res, id, data1, data2 = true, 0, nil, nil + local headers = {} + local status = 200 + + local x = coroutine.create(luci.dispatcher.httpdispatch) + while id < 3 do + coroutine.yield() + + res, id, data1, data2 = coroutine.resume(x, r) + + if not res then + status = 500 + headers["Content-Type"] = "text/plain" + local err = {id} + return status, headers, function() local x = table.remove(err) return x end + end + + if id == 1 then + status = data1 + elseif id == 2 then + headers[data1] = data2 + end + end + + local function iter() + local res, id, data = coroutine.resume(x) + if not res then + return nil, id + elseif id == 5 then + return nil + else + return data + end + end + + return Response(status, headers), iter +end
\ No newline at end of file diff --git a/libs/httpd/luasrc/httpd/module.lua b/libs/httpd/luasrc/httpd/module.lua index 28460a1c9..c321856a8 100644 --- a/libs/httpd/luasrc/httpd/module.lua +++ b/libs/httpd/luasrc/httpd/module.lua @@ -34,15 +34,9 @@ end -- Creates a failure reply -function Handler.failure(self, message) - response = { - status = 500, - headers = { - ["Content-Type"] = "text/plain" - } - } - - sourceout = ltn12.source.string(message) +function Handler.failure(self, code, message) + local response = Response(code, { ["Content-Type"] = "text/plain" }) + local sourceout = ltn12.source.string(message) return response, sourceout end @@ -70,12 +64,12 @@ function Handler.process(self, request, sourcein, sinkout, sinkerr) -- Check for any errors if not stat then - response, sourceout = self:failure(response) + response, sourceout = self:failure(500, response) end -- Check data if not luci.util.instanceof(response, Response) then - response, sourceout = self:failure("Core error: Invalid module response!") + response, sourceout = self:failure(500, "Core error: Invalid module response!") end -- Process outgoing filters @@ -131,12 +125,4 @@ end function Response.setstatus(self, status) self.status = status -end - - --- Status codes -statusmsg = { - [200] = "OK", - [404] = "Not Found", - [500] = "Internal Server Error", -}
\ No newline at end of file +end
\ No newline at end of file diff --git a/libs/httpd/luasrc/httpd/server.lua b/libs/httpd/luasrc/httpd/server.lua index 7f973ac03..2bb44bd02 100644 --- a/libs/httpd/luasrc/httpd/server.lua +++ b/libs/httpd/luasrc/httpd/server.lua @@ -18,6 +18,7 @@ require("luci.util") READ_BUFSIZE = 1024 + VHost = luci.util.class() function VHost.__init__(self, handler) @@ -25,76 +26,75 @@ function VHost.__init__(self, handler) self.dhandler = {} end -function VHost.process(self, ...) - -- TODO: Dispatch handler -end - -function VHost.sethandler(self, handler, match) - if match then - self.dhandler[match] = handler - else - self.handler = handler - end -end +function VHost.process(self, request, sourcein, sinkout, sinkerr) + local handler = self.handler + local uri = request.env.REQUEST_URI:match("^([^?]*)") + -- SCRIPT_NAME + request.env.SCRIPT_NAME = "" -Server = luci.util.class() + -- Call URI part + request.env.PATH_INFO = uri -function Server.__init__(self, ip, port, base) - self.socket = socket.bind(ip, port) - self.socket:settimeout(0, "t") - self.clhandler = client_handler - self.errhandler = error503 - self.host = nil - self.vhosts = {} - - -- Clone another server - if base then - getmetatable(self).__index = base + for k, dhandler in pairs(self.dhandler) do + if k == uri or k.."/" == uri:sub(1, #k+1) then + handler = dhandler + request.env.SCRIPT_NAME = k + request.env.PATH_INFO = uri:sub(#k+1) + break; + end end -end --- Sets a vhost -function Server.setvhost(self, vhost, name) - if name then - self.vhosts[name] = vhost + if handler then + handler:process(request, sourcein, sinkout, sinkerr) + return true else - self.host = vhost + return false end end -function Server.error400(self, client, msg) - client:send( "HTTP/1.0 400 Bad request\r\n" ) - client:send( "Content-Type: text/plain\r\n\r\n" ) +function VHost.set_default_handler(self, handler) + self.handler = handler +end - if msg then - client:send( msg .. "\r\n" ) - end - client:close() +function VHost.set_handler(self, match, handler) + self.dhandler[match] = handler end -function Server.error503(self, client) - client:send( "HTTP/1.0 503 Server unavailable\r\n" ) - client:send( "Content-Type: text/plain\r\n\r\n" ) - client:send( "There are too many clients connected, try again later\r\n" ) -end -function Server.process(self, ...) - -- TODO: Dispatch vhost + +Server = luci.util.class() + +function Server.__init__(self, host) + self.clhandler = client_handler + self.errhandler = error503 + self.host = host + self.vhosts = {} end +function Server.set_default_vhost(self, vhost) + self.host = vhost +end -function Server.client_handler(self, client) +-- Sets a vhost +function Server.set_vhost(self, name, vhost) + self.vhosts[name] = vhost +end - client:settimeout( 0 ) +function Server.create_daemon_handlers(self) + return function(...) return self:process(...) end, + function(...) return self:error503(...) end +end +function Server.create_client_sources(self, client) -- Create LTN12 block source local block_source = function() - coroutine.yield() + -- Yielding here may cause chaos in coroutine based modules, be careful + -- coroutine.yield() local chunk, err, part = client:receive( READ_BUFSIZE ) @@ -108,6 +108,7 @@ function Server.client_handler(self, client) end + -- Create LTN12 line source local line_source = ltn12.source.simplify( function() @@ -139,14 +140,55 @@ function Server.client_handler(self, client) end end ) - coroutine.yield(client) + return block_source, line_source +end - -- parse message - local message, err = luci.http.protocol.parse_message_header( line_source ) +function Server.error400(self, socket, msg) + socket:send( "HTTP/1.0 400 Bad request\r\n" ) + socket:send( "Content-Type: text/plain\r\n\r\n" ) - if message then + if msg then + socket:send( msg .. "\r\n" ) + end + + socket:close() +end + +function Server.error500(self, socket, msg) + socket:send( "HTTP/1.0 500 Internal Server Error\r\n" ) + socket:send( "Content-Type: text/plain\r\n\r\n" ) + + if msg then + socket:send( msg .. "\r\n" ) + end + + socket:close() +end + +function Server.error503(self, socket) + socket:send( "HTTP/1.0 503 Server unavailable\r\n" ) + socket:send( "Content-Type: text/plain\r\n\r\n" ) + socket:send( "There are too many clients connected, try again later\r\n" ) + socket:close() +end + +function Server.process(self, client) + + client:settimeout( 0 ) + local sourcein, sourcehdr = self:create_client_sources(client) + local sinkerr = ltn12.sink.file(io.stderr) + + -- FIXME: Add keep-alive support + local sinkout = socket.sink("close-when-done", client) + + coroutine.yield() + + -- parse headers + local message, err = luci.http.protocol.parse_message_header( sourcehdr ) + + if message then -- If we have a HTTP/1.1 client and an Expect: 100-continue header then -- respond with HTTP 100 Continue message if message.http_version == 1.1 and message.headers['Expect'] and @@ -155,19 +197,18 @@ function Server.client_handler(self, client) client:send("HTTP/1.1 100 Continue\r\n\r\n") end - - local s, e = luci.http.protocol.parse_message_body( block_source, message ) - - -- XXX: debug - luci.util.dumptable( message ) - - if not s and e then - self:error400( client, e ) + local host = self.vhosts[message.env.HTTP_HOST] or self.host + if host then + if host:process(message, sourcein, sinkout, sinkerr) then + sinkout() + else + self:error500( client, "No suitable path handler found" ) + end + else + self:error500( client, "No suitable host handler found" ) end else self:error400( client, err ) + return nil end - - -- send response - self:error400( client, "Dummy response" ) end |