webmcp

annotate framework/bin/mcp.lua @ 206:eb3e236d261d

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Code cleanup and work on Moonbridge integration
author jbe
date Fri Jan 09 22:28:39 2015 +0100 (2015-01-09)
parents b059efd81649
children 77c4774e8342
rev   line source
jbe@203 1 #!/usr/bin/env moonbridge
jbe/bsw@0 2
jbe@203 3 WEBMCP_VERSION = "2.0.0_devel"
jbe@64 4
jbe@203 5 -- check if interactive mode
jbe@203 6 if listen then -- defined by moonbridge
jbe@203 7 WEBMCP_MODE = "listen"
jbe@203 8 else
jbe@203 9 WEBMCP_MODE = "interactive"
jbe@64 10 end
jbe@203 11
jbe@206 12 -- configuration names are provided as 4th, 5th, etc. argument
jbe@206 13 WEBMCP_CONFIG_NAMES = {select(4, ...)}
jbe@203 14
jbe@203 15 -- determine framework and bath path from command line arguments
jbe@203 16 -- or print usage synopsis (if applicable)
jbe@68 17 do
jbe@206 18 local arg1, arg2, arg3 = ...
jbe@203 19 local helpout
jbe@203 20 if
jbe@203 21 arg1 == "-h" or arg1 == "--help" or
jbe@206 22 arg2 == "-h" or arg2 == "--help" -- if first arg is provided by wrapper
jbe@203 23 then
jbe@203 24 helpout = io.stdout
jbe@203 25 elseif
jbe@206 26 #config_args < 1 or
jbe@206 27 (WEBMCP_MODE == "interactive") ~= (arg3 == "INTERACTIVE")
jbe@203 28 then
jbe@203 29 helpout = io.stderr
jbe@203 30 end
jbe@206 31 helpout:write("Usage: moonbridge -- <framework path>/bin/mcp.lua <framework path> <app base path> <app name> <config name> [<config name> ...]\n")
jbe@206 32 helpout:write(" or: lua -i <framework path>/bin/mcp.lua <framework path> <app base path> INTERACTIVE <config name> [<config name> ...]\n")
jbe@203 33 if helpout then
jbe@203 34 if helpout == io.stderr then
jbe@203 35 return 1
jbe@68 36 else
jbe@203 37 return 0
jbe@68 38 end
jbe@68 39 end
jbe@203 40 local function append_trailing_slash(str)
jbe@203 41 return string.sub(str, "([^/])$", function(last) return last .. "/" end)
jbe@203 42 end
jbe@203 43 WEBMCP_FRAMEWORK_PATH = append_trailing_slash(arg1)
jbe@203 44 WEBMCP_BASE_PATH = append_trailing_slash(arg2)
jbe@206 45 if WEBMCP_MODE == "listen" then
jbe@206 46 WEBMCP_APP_NAME = arg3
jbe@206 47 end
jbe@68 48 end
jbe@1 49
jbe@203 50 -- setup search paths for libraries
jbe/bsw@0 51 do
jbe@203 52 package.path = WEBMCP_FRAMEWORK_PATH .. "lib/?.lua;" .. package.path
jbe/bsw@0 53 -- find out which file name extension shared libraries have
jbe/bsw@0 54 local slib_exts = {}
jbe/bsw@0 55 for ext in string.gmatch(package.cpath, "%?%.([A-Za-z0-9_-]+)") do
jbe/bsw@0 56 slib_exts[ext] = true
jbe/bsw@0 57 end
jbe/bsw@0 58 local paths = {}
jbe/bsw@0 59 for ext in pairs(slib_exts) do
jbe@203 60 paths[#paths+1] = WEBMCP_FRAMEWORK_PATH .. "accelerator/?." .. ext
jbe/bsw@0 61 end
jbe/bsw@0 62 for ext in pairs(slib_exts) do
jbe@203 63 paths[#paths+1] = WEBMCP_FRAMEWORK_PATH .. "lib/?." .. ext
jbe/bsw@0 64 end
jbe/bsw@0 65 paths[#paths+1] = package.cpath
jbe/bsw@0 66 package.cpath = table.concat(paths, ";")
jbe/bsw@0 67 end
jbe/bsw@0 68
jbe@203 69 -- autoloader system for WebMCP environment "$WEBMCP_FRAMEWORK_PATH/env/",
jbe@203 70 -- application environment extensions "$WEBMCP_BASE_PATH/env/"
jbe@203 71 -- and models "$WEBMCP_BASE_PATH/model/"
jbe/bsw@0 72 do
jbe/bsw@0 73 local weakkey_mt = { __mode = "k" }
jbe/bsw@0 74 local autoloader_category = setmetatable({}, weakkey_mt)
jbe/bsw@0 75 local autoloader_path = setmetatable({}, weakkey_mt)
jbe/bsw@0 76 local autoloader_mt = {}
jbe/bsw@0 77 local function install_autoloader(self, category, path)
jbe/bsw@0 78 autoloader_category[self] = category
jbe/bsw@0 79 autoloader_path[self] = path
jbe/bsw@0 80 setmetatable(self, autoloader_mt)
jbe/bsw@0 81 end
jbe/bsw@0 82 local function try_exec(filename)
jbe/bsw@0 83 local file = io.open(filename, "r")
jbe/bsw@0 84 if file then
jbe/bsw@0 85 local filedata = file:read("*a")
jbe/bsw@0 86 io.close(file)
jbe@68 87 local func, errmsg = load(filedata, "=" .. filename)
jbe/bsw@0 88 if func then
jbe/bsw@0 89 func()
jbe/bsw@0 90 return true
jbe/bsw@0 91 else
jbe/bsw@0 92 error(errmsg, 0)
jbe/bsw@0 93 end
jbe/bsw@0 94 else
jbe/bsw@0 95 return false
jbe/bsw@0 96 end
jbe/bsw@0 97 end
jbe/bsw@0 98 local function compose_path_string(base, path, key)
jbe@203 99 if #path == 0 then
jbe@203 100 return base .. "/" .. key
jbe@203 101 else
jbe@203 102 return base .. table.concat(path, "/") .. "/" .. key
jbe@203 103 end
jbe/bsw@0 104 end
jbe/bsw@0 105 function autoloader_mt.__index(self, key)
jbe/bsw@0 106 local category, base_path, merge_base_path, file_key
jbe/bsw@0 107 local merge = false
jbe/bsw@0 108 if
jbe/bsw@0 109 string.find(key, "^[a-z_][A-Za-z0-9_]*$") and
jbe/bsw@0 110 not string.find(key, "^__")
jbe/bsw@0 111 then
jbe/bsw@0 112 category = "env"
jbe@203 113 base_path = WEBMCP_FRAMEWORK_PATH .. "env/"
jbe/bsw@0 114 merge = true
jbe@203 115 merge_base_path = WEBMCP_BASE_PATH .. "env/"
jbe/bsw@0 116 file_key = key
jbe/bsw@0 117 elseif string.find(key, "^[A-Z][A-Za-z0-9]*$") then
jbe/bsw@0 118 category = "model"
jbe@203 119 base_path = WEBMCP_BASE_PATH .. "model/"
jbe/bsw@0 120 local first = true
jbe/bsw@0 121 file_key = string.gsub(key, "[A-Z]",
jbe/bsw@0 122 function(c)
jbe/bsw@0 123 if first then
jbe/bsw@0 124 first = false
jbe/bsw@0 125 return string.lower(c)
jbe/bsw@0 126 else
jbe/bsw@0 127 return "_" .. string.lower(c)
jbe/bsw@0 128 end
jbe/bsw@0 129 end
jbe/bsw@0 130 )
jbe/bsw@0 131 else
jbe/bsw@0 132 return
jbe/bsw@0 133 end
jbe/bsw@0 134 local required_category = autoloader_category[self]
jbe/bsw@0 135 if required_category and required_category ~= category then return end
jbe/bsw@0 136 local path = autoloader_path[self]
jbe/bsw@0 137 local path_string = compose_path_string(base_path, path, file_key)
jbe/bsw@0 138 local merge_path_string
jbe/bsw@0 139 if merge then
jbe/bsw@0 140 merge_path_string = compose_path_string(
jbe/bsw@0 141 merge_base_path, path, file_key
jbe/bsw@0 142 )
jbe/bsw@0 143 end
jbe/bsw@0 144 local function try_dir(dirname)
jbe/bsw@0 145 local dir = io.open(dirname)
jbe/bsw@0 146 if dir then
jbe/bsw@0 147 io.close(dir)
jbe/bsw@0 148 local obj = {}
jbe/bsw@0 149 local sub_path = {}
jbe@203 150 for i = 1, #path do sub_path[i] = path[i] end
jbe@203 151 sub_path[#path+1] = file_key
jbe/bsw@0 152 install_autoloader(obj, category, sub_path)
jbe/bsw@0 153 rawset(self, key, obj)
jbe/bsw@0 154 try_exec(path_string .. "/__init.lua")
jbe/bsw@0 155 if merge then try_exec(merge_path_string .. "/__init.lua") end
jbe/bsw@0 156 return true
jbe/bsw@0 157 else
jbe/bsw@0 158 return false
jbe/bsw@0 159 end
jbe/bsw@0 160 end
jbe/bsw@0 161 if merge and try_exec(merge_path_string .. ".lua") then
jbe/bsw@0 162 elseif merge and try_dir(merge_path_string .. "/") then
jbe/bsw@0 163 elseif try_exec(path_string .. ".lua") then
jbe/bsw@0 164 elseif try_dir(path_string .. "/") then
jbe/bsw@0 165 else end
jbe/bsw@0 166 return rawget(self, key)
jbe/bsw@0 167 end
jbe/bsw@0 168 install_autoloader(_G, nil, {})
jbe@203 169 try_exec(WEBMCP_FRAMEWORK_PATH .. "env/__init.lua")
jbe@203 170 try_exec(WEBMCP_BASE_PATH .. "env/__init.lua")
jbe/bsw@0 171 end
jbe/bsw@0 172
jbe@203 173 -- prohibit (unintended) definition of new global variables
jbe@203 174 _ENV = setmetatable({}, {
jbe@203 175 __index = _G,
jbe@203 176 __newindex = function()
jbe@203 177 error("Setting of global variable prohibited")
jbe@203 178 end
jbe@203 179 })
jbe@203 180
jbe@206 181 -- execute configurations
jbe@206 182 for i, config_name in ipairs(WEBMCP_CONFIG_NAMES) do
jbe@206 183 execute.config(config_name)
jbe@206 184 end
jbe@206 185
jbe/bsw@0 186 -- interactive console mode
jbe@203 187 if WEBMCP_MODE == "interactive" then
jbe@203 188 trace.disable() -- avoids memory leakage (TODO: needs general solution for moonbridge?)
jbe/bsw@0 189 end
jbe/bsw@0 190
jbe@204 191 -- invoke moonbridge
jbe@206 192 if WEBMCP_MODE == "listen" then
jbe@206 193 local moonbridge_listen = listen
jbe@206 194 local listeners
jbe@206 195 function _G.listen(args)
jbe@206 196 listeners[#listeners+1] = args
jbe@204 197 end
jbe@206 198 for i = 1, #extraargs/2 do
jbe@206 199 local config = {}
jbe@206 200 listeners = {}
jbe@206 201 execute.config(config_name)
jbe@206 202 for i, listener in ipairs(listeners) do
jbe@206 203 listener.prepare = execute.prefork_initializers
jbe@206 204 listener.connect = http.generate_handler(
jbe@206 205 request.get_http_options(),
jbe@206 206 function(req)
jbe@206 207 execute.postfork_initializers()
jbe@206 208 request.handler(req)
jbe@206 209 end
jbe@206 210 )
jbe@206 211 --listener.finish = ??? -- TODO: requires coroutines and execute.inner() for initializers?
jbe@206 212 moonbridge_listen(listener)
jbe@204 213 end
jbe@204 214 end
jbe@204 215 end
jbe@204 216
jbe@206 217 --[[ TODO: following lines to be moved to execute.server(...)
jbe@203 218
jbe/bsw@0 219 local success, error_info = xpcall(
jbe/bsw@0 220 function()
jbe/bsw@0 221
jbe/bsw@0 222 -- execute configuration file
jbe/bsw@0 223 do
jbe/bsw@0 224 local config_name = request.get_config_name()
jbe/bsw@0 225 if config_name then
jbe/bsw@0 226 execute.config(config_name)
jbe/bsw@0 227 end
jbe/bsw@0 228 end
jbe/bsw@0 229
jbe/bsw@0 230 -- restore slots if coming from http redirect
jbe/bsw@0 231 if cgi.params.tempstore then
jbe/bsw@0 232 trace.restore_slots{}
jbe/bsw@0 233 local blob = tempstore.pop(cgi.params.tempstore)
jbe/bsw@0 234 if blob then slot.restore_all(blob) end
jbe/bsw@0 235 end
jbe/bsw@0 236
jbe/bsw@0 237 local function file_exists(filename)
jbe/bsw@0 238 local file = io.open(filename, "r")
jbe/bsw@0 239 if file then
jbe/bsw@0 240 io.close(file)
jbe/bsw@0 241 return true
jbe/bsw@0 242 else
jbe/bsw@0 243 return false
jbe/bsw@0 244 end
jbe/bsw@0 245 end
jbe/bsw@0 246
jbe@97 247 if request.is_404() then
jbe/bsw@0 248 request.set_status("404 Not Found")
jbe/bsw@0 249 if request.get_404_route() then
jbe/bsw@0 250 request.forward(request.get_404_route())
jbe/bsw@0 251 else
jbe/bsw@0 252 error("No 404 page set.")
jbe/bsw@0 253 end
jbe/bsw@0 254 elseif request.get_action() then
jbe/bsw@0 255 trace.request{
jbe/bsw@0 256 module = request.get_module(),
jbe/bsw@0 257 action = request.get_action()
jbe/bsw@0 258 }
jbe/bsw@0 259 if
jbe/bsw@0 260 request.get_404_route() and
jbe/bsw@0 261 not file_exists(
jbe/bsw@0 262 encode.action_file_path{
jbe/bsw@0 263 module = request.get_module(),
jbe/bsw@0 264 action = request.get_action()
jbe/bsw@0 265 }
jbe/bsw@0 266 )
jbe/bsw@0 267 then
jbe/bsw@0 268 request.set_status("404 Not Found")
jbe/bsw@0 269 request.forward(request.get_404_route())
jbe/bsw@0 270 else
jbe/bsw@0 271 if cgi.method ~= "POST" then
jbe/bsw@0 272 request.set_status("405 Method Not Allowed")
jbe/bsw@0 273 cgi.add_header("Allow: POST")
jbe/bsw@0 274 error("Tried to invoke an action with a GET request.")
jbe/bsw@0 275 end
jbe/bsw@0 276 local action_status = execute.filtered_action{
jbe/bsw@0 277 module = request.get_module(),
jbe/bsw@0 278 action = request.get_action(),
jbe/bsw@0 279 }
jbe/bsw@0 280 if not request.is_rerouted() then
jbe/bsw@0 281 local routing_mode, routing_module, routing_view
jbe/bsw@0 282 routing_mode = cgi.params["_webmcp_routing." .. action_status .. ".mode"]
jbe/bsw@0 283 routing_module = cgi.params["_webmcp_routing." .. action_status .. ".module"]
jbe/bsw@0 284 routing_view = cgi.params["_webmcp_routing." .. action_status .. ".view"]
jbe@113 285 routing_anchor = cgi.params["_webmcp_routing." .. action_status .. ".anchor"]
jbe/bsw@0 286 if not (routing_mode or routing_module or routing_view) then
jbe/bsw@0 287 action_status = "default"
jbe/bsw@0 288 routing_mode = cgi.params["_webmcp_routing.default.mode"]
jbe/bsw@0 289 routing_module = cgi.params["_webmcp_routing.default.module"]
jbe/bsw@0 290 routing_view = cgi.params["_webmcp_routing.default.view"]
jbe@113 291 routing_anchor = cgi.params["_webmcp_routing.default.anchor"]
jbe/bsw@0 292 end
jbe/bsw@0 293 assert(routing_module, "Routing information has no module.")
jbe/bsw@0 294 assert(routing_view, "Routing information has no view.")
jbe/bsw@0 295 if routing_mode == "redirect" then
jbe/bsw@0 296 local routing_params = {}
jbe/bsw@0 297 for key, value in pairs(cgi.params) do
jbe/bsw@0 298 local status, stripped_key = string.match(
jbe/bsw@0 299 key, "^_webmcp_routing%.([^%.]*)%.params%.(.*)$"
jbe/bsw@0 300 )
jbe/bsw@0 301 if status == action_status then
jbe/bsw@0 302 routing_params[stripped_key] = value
jbe/bsw@0 303 end
jbe/bsw@0 304 end
jbe/bsw@0 305 request.redirect{
jbe/bsw@0 306 module = routing_module,
jbe/bsw@0 307 view = routing_view,
jbe/bsw@0 308 id = cgi.params["_webmcp_routing." .. action_status .. ".id"],
jbe@113 309 params = routing_params,
jbe@113 310 anchor = routing_anchor
jbe/bsw@0 311 }
jbe/bsw@0 312 elseif routing_mode == "forward" then
jbe/bsw@0 313 request.forward{ module = routing_module, view = routing_view }
jbe/bsw@0 314 else
jbe/bsw@0 315 error("Missing or unknown routing mode in request parameters.")
jbe/bsw@0 316 end
jbe/bsw@0 317 end
jbe/bsw@0 318 end
jbe/bsw@0 319 else
jbe/bsw@0 320 -- no action
jbe/bsw@0 321 trace.request{
jbe/bsw@0 322 module = request.get_module(),
jbe/bsw@0 323 view = request.get_view()
jbe/bsw@0 324 }
jbe/bsw@0 325 if
jbe/bsw@0 326 request.get_404_route() and
jbe/bsw@0 327 not file_exists(
jbe/bsw@0 328 encode.view_file_path{
jbe/bsw@0 329 module = request.get_module(),
jbe/bsw@0 330 view = request.get_view()
jbe/bsw@0 331 }
jbe/bsw@0 332 )
jbe/bsw@0 333 then
jbe/bsw@0 334 request.set_status("404 Not Found")
jbe/bsw@0 335 request.forward(request.get_404_route())
jbe/bsw@0 336 end
jbe/bsw@0 337 end
jbe/bsw@0 338
jbe/bsw@0 339 if not request.get_redirect_data() then
jbe@3 340 request.process_forward()
jbe/bsw@2 341 local view = request.get_view()
jbe/bsw@2 342 if string.find(view, "^_") then
jbe/bsw@2 343 error("Tried to call a private view (prefixed with underscore).")
jbe/bsw@2 344 end
jbe/bsw@0 345 execute.filtered_view{
jbe/bsw@0 346 module = request.get_module(),
jbe/bsw@2 347 view = view,
jbe/bsw@0 348 }
jbe/bsw@0 349 end
jbe/bsw@0 350
jbe/bsw@0 351 -- force error due to missing absolute base URL until its too late to display error message
jbe/bsw@0 352 --if request.get_redirect_data() then
jbe/bsw@0 353 -- request.get_absolute_baseurl()
jbe/bsw@0 354 --end
jbe/bsw@0 355
jbe/bsw@0 356 end,
jbe/bsw@0 357
jbe/bsw@0 358 function(errobj)
jbe/bsw@0 359 return {
jbe/bsw@0 360 errobj = errobj,
jbe/bsw@0 361 stacktrace = string.gsub(
jbe/bsw@0 362 debug.traceback('', 2),
jbe/bsw@0 363 "^\r?\n?stack traceback:\r?\n?", ""
jbe/bsw@0 364 )
jbe/bsw@0 365 }
jbe/bsw@0 366 end
jbe/bsw@0 367 )
jbe/bsw@0 368
jbe/bsw@0 369 if not success then trace.error{} end
jbe/bsw@0 370
jbe/bsw@0 371 -- laufzeitermittlung
jbe@65 372 trace.exectime{ real = extos.monotonic_hires_time(), cpu = os.clock() }
jbe/bsw@0 373
jbe/bsw@0 374 slot.select('trace', trace.render) -- render trace information
jbe/bsw@0 375
jbe/bsw@0 376 local redirect_data = request.get_redirect_data()
jbe/bsw@0 377
jbe/bsw@0 378 -- log error and switch to error layout, unless success
jbe/bsw@0 379 if not success then
jbe/bsw@0 380 local errobj = error_info.errobj
jbe/bsw@0 381 local stacktrace = error_info.stacktrace
jbe/bsw@11 382 if not request.get_status() and not request.get_json_request_slots() then
jbe/bsw@0 383 request.set_status("500 Internal Server Error")
jbe/bsw@0 384 end
jbe/bsw@0 385 slot.set_layout('system_error')
jbe/bsw@0 386 slot.select('system_error', function()
jbe/bsw@0 387 if getmetatable(errobj) == mondelefant.errorobject_metatable then
jbe/bsw@0 388 slot.put(
jbe/bsw@0 389 "<p>Database error of class <b>",
jbe/bsw@0 390 encode.html(errobj.code),
jbe/bsw@0 391 "</b> occured:<br/><b>",
jbe/bsw@0 392 encode.html(errobj.message),
jbe/bsw@0 393 "</b></p>"
jbe/bsw@0 394 )
jbe/bsw@0 395 else
jbe/bsw@0 396 slot.put("<p><b>", encode.html(tostring(errobj)), "</b></p>")
jbe/bsw@0 397 end
jbe/bsw@0 398 slot.put("<p>Stack trace follows:<br/>")
jbe/bsw@0 399 slot.put(encode.html_newlines(encode.html(stacktrace)))
jbe/bsw@0 400 slot.put("</p>")
jbe/bsw@0 401 end)
jbe/bsw@0 402 elseif redirect_data then
jbe/bsw@0 403 local redirect_params = {}
jbe/bsw@0 404 for key, value in pairs(redirect_data.params) do
jbe/bsw@0 405 redirect_params[key] = value
jbe/bsw@0 406 end
jbe/bsw@0 407 local slot_dump = slot.dump_all()
jbe/bsw@0 408 if slot_dump ~= "" then
jbe/bsw@0 409 redirect_params.tempstore = tempstore.save(slot_dump)
jbe/bsw@0 410 end
jbe/bsw@11 411 local json_request_slots = request.get_json_request_slots()
jbe/bsw@11 412 if json_request_slots then
jbe/bsw@11 413 redirect_params["_webmcp_json_slots[]"] = json_request_slots
jbe/bsw@11 414 end
jbe/bsw@0 415 cgi.redirect(
jbe/bsw@0 416 encode.url{
jbe/bsw@0 417 base = request.get_absolute_baseurl(),
jbe/bsw@0 418 module = redirect_data.module,
jbe/bsw@0 419 view = redirect_data.view,
jbe/bsw@0 420 id = redirect_data.id,
jbe@113 421 params = redirect_params,
jbe@113 422 anchor = redirect_data.anchor
jbe/bsw@0 423 }
jbe/bsw@0 424 )
jbe/bsw@0 425 cgi.send_data()
jbe/bsw@0 426 end
jbe/bsw@0 427
jbe/bsw@0 428 if not success or not redirect_data then
jbe/bsw@0 429
jbe/bsw@0 430 local http_status = request.get_status()
jbe/bsw@0 431 if http_status then
jbe/bsw@0 432 cgi.set_status(http_status)
jbe/bsw@0 433 end
jbe/bsw@0 434
jbe@1 435 local json_request_slots = request.get_json_request_slots()
jbe@1 436 if json_request_slots then
jbe@1 437 cgi.set_content_type('application/json')
jbe@1 438 local data = {}
jbe@1 439 for idx, slot_ident in ipairs(json_request_slots) do
jbe@1 440 data[slot_ident] = slot.get_content(slot_ident)
jbe/bsw@0 441 end
jbe@1 442 cgi.send_data(encode.json(data))
jbe/bsw@0 443 else
jbe/bsw@0 444 cgi.set_content_type(slot.get_content_type())
jbe/bsw@0 445 cgi.send_data(slot.render_layout())
jbe/bsw@0 446 end
jbe/bsw@0 447 end
jbe/bsw@0 448
jbe@204 449 --]]
jbe@204 450

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