webmcp

annotate framework/bin/mcp.lua @ 204:b059efd81649

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Moonbridge invocation in framework/bin/mcp.lua
author jbe
date Fri Jan 09 04:54:50 2015 +0100 (2015-01-09)
parents c6ef9991b911
children eb3e236d261d
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@203 12 -- store extra command line arguments
jbe@203 13 local extraargs = {select(3, ...)}
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@203 18 local arg1, arg2 = ...
jbe@203 19 local helpout
jbe@203 20 if
jbe@203 21 arg1 == "-h" or arg1 == "--help" or
jbe@203 22 arg2 == "-h" or arg2 == "--help"
jbe@203 23 then
jbe@203 24 helpout = io.stdout
jbe@203 25 elseif
jbe@203 26 (WEBMCP_MODE == "listen" and (#extraargs < 2 or #extraargs % 2 ~= 0)) or
jbe@203 27 (WEBMCP_MODE == "interactive" and arg2 == nil)
jbe@203 28 then
jbe@203 29 helpout = io.stderr
jbe@203 30 end
jbe@203 31 helpout:write("Usage: moonbridge -- mcp.lua <framework path> <app base path> <app name 1> <config name 1> [<app name 2> <config name 2> ...]\n")
jbe@203 32 helpout:write(" or: lua -i mcp.lua <framework path> <app base path> [<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, "([^/])$", function(last) return last .. "/" end)
jbe@203 42 end
jbe@203 43 WEBMCP_FRAMEWORK_PATH = append_trailing_slash(arg1)
jbe@203 44 WEBMCP_BASE_PATH = append_trailing_slash(arg2)
jbe@68 45 end
jbe@1 46
jbe@203 47 -- setup search paths for libraries
jbe/bsw@0 48 do
jbe@203 49 package.path = WEBMCP_FRAMEWORK_PATH .. "lib/?.lua;" .. package.path
jbe/bsw@0 50 -- find out which file name extension shared libraries have
jbe/bsw@0 51 local slib_exts = {}
jbe/bsw@0 52 for ext in string.gmatch(package.cpath, "%?%.([A-Za-z0-9_-]+)") do
jbe/bsw@0 53 slib_exts[ext] = true
jbe/bsw@0 54 end
jbe/bsw@0 55 local paths = {}
jbe/bsw@0 56 for ext in pairs(slib_exts) do
jbe@203 57 paths[#paths+1] = WEBMCP_FRAMEWORK_PATH .. "accelerator/?." .. ext
jbe/bsw@0 58 end
jbe/bsw@0 59 for ext in pairs(slib_exts) do
jbe@203 60 paths[#paths+1] = WEBMCP_FRAMEWORK_PATH .. "lib/?." .. ext
jbe/bsw@0 61 end
jbe/bsw@0 62 paths[#paths+1] = package.cpath
jbe/bsw@0 63 package.cpath = table.concat(paths, ";")
jbe/bsw@0 64 end
jbe/bsw@0 65
jbe@203 66 -- autoloader system for WebMCP environment "$WEBMCP_FRAMEWORK_PATH/env/",
jbe@203 67 -- application environment extensions "$WEBMCP_BASE_PATH/env/"
jbe@203 68 -- and models "$WEBMCP_BASE_PATH/model/"
jbe/bsw@0 69 do
jbe/bsw@0 70 local weakkey_mt = { __mode = "k" }
jbe/bsw@0 71 local autoloader_category = setmetatable({}, weakkey_mt)
jbe/bsw@0 72 local autoloader_path = setmetatable({}, weakkey_mt)
jbe/bsw@0 73 local autoloader_mt = {}
jbe/bsw@0 74 local function install_autoloader(self, category, path)
jbe/bsw@0 75 autoloader_category[self] = category
jbe/bsw@0 76 autoloader_path[self] = path
jbe/bsw@0 77 setmetatable(self, autoloader_mt)
jbe/bsw@0 78 end
jbe/bsw@0 79 local function try_exec(filename)
jbe/bsw@0 80 local file = io.open(filename, "r")
jbe/bsw@0 81 if file then
jbe/bsw@0 82 local filedata = file:read("*a")
jbe/bsw@0 83 io.close(file)
jbe@68 84 local func, errmsg = load(filedata, "=" .. filename)
jbe/bsw@0 85 if func then
jbe/bsw@0 86 func()
jbe/bsw@0 87 return true
jbe/bsw@0 88 else
jbe/bsw@0 89 error(errmsg, 0)
jbe/bsw@0 90 end
jbe/bsw@0 91 else
jbe/bsw@0 92 return false
jbe/bsw@0 93 end
jbe/bsw@0 94 end
jbe/bsw@0 95 local function compose_path_string(base, path, key)
jbe@203 96 if #path == 0 then
jbe@203 97 return base .. "/" .. key
jbe@203 98 else
jbe@203 99 return base .. table.concat(path, "/") .. "/" .. key
jbe@203 100 end
jbe/bsw@0 101 end
jbe/bsw@0 102 function autoloader_mt.__index(self, key)
jbe/bsw@0 103 local category, base_path, merge_base_path, file_key
jbe/bsw@0 104 local merge = false
jbe/bsw@0 105 if
jbe/bsw@0 106 string.find(key, "^[a-z_][A-Za-z0-9_]*$") and
jbe/bsw@0 107 not string.find(key, "^__")
jbe/bsw@0 108 then
jbe/bsw@0 109 category = "env"
jbe@203 110 base_path = WEBMCP_FRAMEWORK_PATH .. "env/"
jbe/bsw@0 111 merge = true
jbe@203 112 merge_base_path = WEBMCP_BASE_PATH .. "env/"
jbe/bsw@0 113 file_key = key
jbe/bsw@0 114 elseif string.find(key, "^[A-Z][A-Za-z0-9]*$") then
jbe/bsw@0 115 category = "model"
jbe@203 116 base_path = WEBMCP_BASE_PATH .. "model/"
jbe/bsw@0 117 local first = true
jbe/bsw@0 118 file_key = string.gsub(key, "[A-Z]",
jbe/bsw@0 119 function(c)
jbe/bsw@0 120 if first then
jbe/bsw@0 121 first = false
jbe/bsw@0 122 return string.lower(c)
jbe/bsw@0 123 else
jbe/bsw@0 124 return "_" .. string.lower(c)
jbe/bsw@0 125 end
jbe/bsw@0 126 end
jbe/bsw@0 127 )
jbe/bsw@0 128 else
jbe/bsw@0 129 return
jbe/bsw@0 130 end
jbe/bsw@0 131 local required_category = autoloader_category[self]
jbe/bsw@0 132 if required_category and required_category ~= category then return end
jbe/bsw@0 133 local path = autoloader_path[self]
jbe/bsw@0 134 local path_string = compose_path_string(base_path, path, file_key)
jbe/bsw@0 135 local merge_path_string
jbe/bsw@0 136 if merge then
jbe/bsw@0 137 merge_path_string = compose_path_string(
jbe/bsw@0 138 merge_base_path, path, file_key
jbe/bsw@0 139 )
jbe/bsw@0 140 end
jbe/bsw@0 141 local function try_dir(dirname)
jbe/bsw@0 142 local dir = io.open(dirname)
jbe/bsw@0 143 if dir then
jbe/bsw@0 144 io.close(dir)
jbe/bsw@0 145 local obj = {}
jbe/bsw@0 146 local sub_path = {}
jbe@203 147 for i = 1, #path do sub_path[i] = path[i] end
jbe@203 148 sub_path[#path+1] = file_key
jbe/bsw@0 149 install_autoloader(obj, category, sub_path)
jbe/bsw@0 150 rawset(self, key, obj)
jbe/bsw@0 151 try_exec(path_string .. "/__init.lua")
jbe/bsw@0 152 if merge then try_exec(merge_path_string .. "/__init.lua") end
jbe/bsw@0 153 return true
jbe/bsw@0 154 else
jbe/bsw@0 155 return false
jbe/bsw@0 156 end
jbe/bsw@0 157 end
jbe/bsw@0 158 if merge and try_exec(merge_path_string .. ".lua") then
jbe/bsw@0 159 elseif merge and try_dir(merge_path_string .. "/") then
jbe/bsw@0 160 elseif try_exec(path_string .. ".lua") then
jbe/bsw@0 161 elseif try_dir(path_string .. "/") then
jbe/bsw@0 162 else end
jbe/bsw@0 163 return rawget(self, key)
jbe/bsw@0 164 end
jbe/bsw@0 165 install_autoloader(_G, nil, {})
jbe@203 166 try_exec(WEBMCP_FRAMEWORK_PATH .. "env/__init.lua")
jbe@203 167 try_exec(WEBMCP_BASE_PATH .. "env/__init.lua")
jbe/bsw@0 168 end
jbe/bsw@0 169
jbe@203 170 -- prohibit (unintended) definition of new global variables
jbe@203 171 _ENV = setmetatable({}, {
jbe@203 172 __index = _G,
jbe@203 173 __newindex = function()
jbe@203 174 error("Setting of global variable prohibited")
jbe@203 175 end
jbe@203 176 })
jbe@203 177
jbe/bsw@0 178 -- interactive console mode
jbe@203 179 if WEBMCP_MODE == "interactive" then
jbe@203 180 trace.disable() -- avoids memory leakage (TODO: needs general solution for moonbridge?)
jbe@203 181 local config_name = select(3, ...)
jbe/bsw@0 182 if config_name then
jbe/bsw@0 183 execute.config(config_name)
jbe/bsw@0 184 end
jbe/bsw@0 185 return
jbe/bsw@0 186 end
jbe/bsw@0 187
jbe@204 188 -- invoke moonbridge
jbe@204 189 local moonbridge_listen = listen
jbe@204 190 local listeners
jbe@204 191 function _G.listen(args)
jbe@204 192 listeners[#listeners+1] = args
jbe@204 193 end
jbe@204 194 for i = 1, #extraargs/2 do
jbe@204 195 local config = {}
jbe@204 196 local function prepare_globals()
jbe@204 197 _G.WEBMCP_APP_NAME = extraargs[2*i-1]
jbe@204 198 _G.WEBMCP_CONFIG_NAME = extraargs[2*i]
jbe@204 199 _G.config = config
jbe@204 200 end
jbe@204 201 prepare_globals()
jbe@204 202 listeners = {}
jbe@204 203 execute.config(config_name)
jbe@204 204 for i, listener in ipairs(listeners) do
jbe@204 205 function listener.prepare()
jbe@204 206 prepare_globals()
jbe@204 207 request.execute_preparers()
jbe@204 208 end
jbe@204 209 listener.connect = request.connect
jbe@204 210 listener.finish = request.execute_finishers
jbe@204 211 end
jbe@204 212 end
jbe@204 213
jbe@204 214 --[[ TODO: following lines to be moved to request.connect(...)
jbe@203 215
jbe/bsw@0 216 local success, error_info = xpcall(
jbe/bsw@0 217 function()
jbe/bsw@0 218
jbe/bsw@0 219 -- execute configuration file
jbe/bsw@0 220 do
jbe/bsw@0 221 local config_name = request.get_config_name()
jbe/bsw@0 222 if config_name then
jbe/bsw@0 223 execute.config(config_name)
jbe/bsw@0 224 end
jbe/bsw@0 225 end
jbe/bsw@0 226
jbe/bsw@0 227 -- restore slots if coming from http redirect
jbe/bsw@0 228 if cgi.params.tempstore then
jbe/bsw@0 229 trace.restore_slots{}
jbe/bsw@0 230 local blob = tempstore.pop(cgi.params.tempstore)
jbe/bsw@0 231 if blob then slot.restore_all(blob) end
jbe/bsw@0 232 end
jbe/bsw@0 233
jbe/bsw@0 234 local function file_exists(filename)
jbe/bsw@0 235 local file = io.open(filename, "r")
jbe/bsw@0 236 if file then
jbe/bsw@0 237 io.close(file)
jbe/bsw@0 238 return true
jbe/bsw@0 239 else
jbe/bsw@0 240 return false
jbe/bsw@0 241 end
jbe/bsw@0 242 end
jbe/bsw@0 243
jbe@97 244 if request.is_404() then
jbe/bsw@0 245 request.set_status("404 Not Found")
jbe/bsw@0 246 if request.get_404_route() then
jbe/bsw@0 247 request.forward(request.get_404_route())
jbe/bsw@0 248 else
jbe/bsw@0 249 error("No 404 page set.")
jbe/bsw@0 250 end
jbe/bsw@0 251 elseif request.get_action() then
jbe/bsw@0 252 trace.request{
jbe/bsw@0 253 module = request.get_module(),
jbe/bsw@0 254 action = request.get_action()
jbe/bsw@0 255 }
jbe/bsw@0 256 if
jbe/bsw@0 257 request.get_404_route() and
jbe/bsw@0 258 not file_exists(
jbe/bsw@0 259 encode.action_file_path{
jbe/bsw@0 260 module = request.get_module(),
jbe/bsw@0 261 action = request.get_action()
jbe/bsw@0 262 }
jbe/bsw@0 263 )
jbe/bsw@0 264 then
jbe/bsw@0 265 request.set_status("404 Not Found")
jbe/bsw@0 266 request.forward(request.get_404_route())
jbe/bsw@0 267 else
jbe/bsw@0 268 if cgi.method ~= "POST" then
jbe/bsw@0 269 request.set_status("405 Method Not Allowed")
jbe/bsw@0 270 cgi.add_header("Allow: POST")
jbe/bsw@0 271 error("Tried to invoke an action with a GET request.")
jbe/bsw@0 272 end
jbe/bsw@0 273 local action_status = execute.filtered_action{
jbe/bsw@0 274 module = request.get_module(),
jbe/bsw@0 275 action = request.get_action(),
jbe/bsw@0 276 }
jbe/bsw@0 277 if not request.is_rerouted() then
jbe/bsw@0 278 local routing_mode, routing_module, routing_view
jbe/bsw@0 279 routing_mode = cgi.params["_webmcp_routing." .. action_status .. ".mode"]
jbe/bsw@0 280 routing_module = cgi.params["_webmcp_routing." .. action_status .. ".module"]
jbe/bsw@0 281 routing_view = cgi.params["_webmcp_routing." .. action_status .. ".view"]
jbe@113 282 routing_anchor = cgi.params["_webmcp_routing." .. action_status .. ".anchor"]
jbe/bsw@0 283 if not (routing_mode or routing_module or routing_view) then
jbe/bsw@0 284 action_status = "default"
jbe/bsw@0 285 routing_mode = cgi.params["_webmcp_routing.default.mode"]
jbe/bsw@0 286 routing_module = cgi.params["_webmcp_routing.default.module"]
jbe/bsw@0 287 routing_view = cgi.params["_webmcp_routing.default.view"]
jbe@113 288 routing_anchor = cgi.params["_webmcp_routing.default.anchor"]
jbe/bsw@0 289 end
jbe/bsw@0 290 assert(routing_module, "Routing information has no module.")
jbe/bsw@0 291 assert(routing_view, "Routing information has no view.")
jbe/bsw@0 292 if routing_mode == "redirect" then
jbe/bsw@0 293 local routing_params = {}
jbe/bsw@0 294 for key, value in pairs(cgi.params) do
jbe/bsw@0 295 local status, stripped_key = string.match(
jbe/bsw@0 296 key, "^_webmcp_routing%.([^%.]*)%.params%.(.*)$"
jbe/bsw@0 297 )
jbe/bsw@0 298 if status == action_status then
jbe/bsw@0 299 routing_params[stripped_key] = value
jbe/bsw@0 300 end
jbe/bsw@0 301 end
jbe/bsw@0 302 request.redirect{
jbe/bsw@0 303 module = routing_module,
jbe/bsw@0 304 view = routing_view,
jbe/bsw@0 305 id = cgi.params["_webmcp_routing." .. action_status .. ".id"],
jbe@113 306 params = routing_params,
jbe@113 307 anchor = routing_anchor
jbe/bsw@0 308 }
jbe/bsw@0 309 elseif routing_mode == "forward" then
jbe/bsw@0 310 request.forward{ module = routing_module, view = routing_view }
jbe/bsw@0 311 else
jbe/bsw@0 312 error("Missing or unknown routing mode in request parameters.")
jbe/bsw@0 313 end
jbe/bsw@0 314 end
jbe/bsw@0 315 end
jbe/bsw@0 316 else
jbe/bsw@0 317 -- no action
jbe/bsw@0 318 trace.request{
jbe/bsw@0 319 module = request.get_module(),
jbe/bsw@0 320 view = request.get_view()
jbe/bsw@0 321 }
jbe/bsw@0 322 if
jbe/bsw@0 323 request.get_404_route() and
jbe/bsw@0 324 not file_exists(
jbe/bsw@0 325 encode.view_file_path{
jbe/bsw@0 326 module = request.get_module(),
jbe/bsw@0 327 view = request.get_view()
jbe/bsw@0 328 }
jbe/bsw@0 329 )
jbe/bsw@0 330 then
jbe/bsw@0 331 request.set_status("404 Not Found")
jbe/bsw@0 332 request.forward(request.get_404_route())
jbe/bsw@0 333 end
jbe/bsw@0 334 end
jbe/bsw@0 335
jbe/bsw@0 336 if not request.get_redirect_data() then
jbe@3 337 request.process_forward()
jbe/bsw@2 338 local view = request.get_view()
jbe/bsw@2 339 if string.find(view, "^_") then
jbe/bsw@2 340 error("Tried to call a private view (prefixed with underscore).")
jbe/bsw@2 341 end
jbe/bsw@0 342 execute.filtered_view{
jbe/bsw@0 343 module = request.get_module(),
jbe/bsw@2 344 view = view,
jbe/bsw@0 345 }
jbe/bsw@0 346 end
jbe/bsw@0 347
jbe/bsw@0 348 -- force error due to missing absolute base URL until its too late to display error message
jbe/bsw@0 349 --if request.get_redirect_data() then
jbe/bsw@0 350 -- request.get_absolute_baseurl()
jbe/bsw@0 351 --end
jbe/bsw@0 352
jbe/bsw@0 353 end,
jbe/bsw@0 354
jbe/bsw@0 355 function(errobj)
jbe/bsw@0 356 return {
jbe/bsw@0 357 errobj = errobj,
jbe/bsw@0 358 stacktrace = string.gsub(
jbe/bsw@0 359 debug.traceback('', 2),
jbe/bsw@0 360 "^\r?\n?stack traceback:\r?\n?", ""
jbe/bsw@0 361 )
jbe/bsw@0 362 }
jbe/bsw@0 363 end
jbe/bsw@0 364 )
jbe/bsw@0 365
jbe/bsw@0 366 if not success then trace.error{} end
jbe/bsw@0 367
jbe/bsw@0 368 -- laufzeitermittlung
jbe@65 369 trace.exectime{ real = extos.monotonic_hires_time(), cpu = os.clock() }
jbe/bsw@0 370
jbe/bsw@0 371 slot.select('trace', trace.render) -- render trace information
jbe/bsw@0 372
jbe/bsw@0 373 local redirect_data = request.get_redirect_data()
jbe/bsw@0 374
jbe/bsw@0 375 -- log error and switch to error layout, unless success
jbe/bsw@0 376 if not success then
jbe/bsw@0 377 local errobj = error_info.errobj
jbe/bsw@0 378 local stacktrace = error_info.stacktrace
jbe/bsw@11 379 if not request.get_status() and not request.get_json_request_slots() then
jbe/bsw@0 380 request.set_status("500 Internal Server Error")
jbe/bsw@0 381 end
jbe/bsw@0 382 slot.set_layout('system_error')
jbe/bsw@0 383 slot.select('system_error', function()
jbe/bsw@0 384 if getmetatable(errobj) == mondelefant.errorobject_metatable then
jbe/bsw@0 385 slot.put(
jbe/bsw@0 386 "<p>Database error of class <b>",
jbe/bsw@0 387 encode.html(errobj.code),
jbe/bsw@0 388 "</b> occured:<br/><b>",
jbe/bsw@0 389 encode.html(errobj.message),
jbe/bsw@0 390 "</b></p>"
jbe/bsw@0 391 )
jbe/bsw@0 392 else
jbe/bsw@0 393 slot.put("<p><b>", encode.html(tostring(errobj)), "</b></p>")
jbe/bsw@0 394 end
jbe/bsw@0 395 slot.put("<p>Stack trace follows:<br/>")
jbe/bsw@0 396 slot.put(encode.html_newlines(encode.html(stacktrace)))
jbe/bsw@0 397 slot.put("</p>")
jbe/bsw@0 398 end)
jbe/bsw@0 399 elseif redirect_data then
jbe/bsw@0 400 local redirect_params = {}
jbe/bsw@0 401 for key, value in pairs(redirect_data.params) do
jbe/bsw@0 402 redirect_params[key] = value
jbe/bsw@0 403 end
jbe/bsw@0 404 local slot_dump = slot.dump_all()
jbe/bsw@0 405 if slot_dump ~= "" then
jbe/bsw@0 406 redirect_params.tempstore = tempstore.save(slot_dump)
jbe/bsw@0 407 end
jbe/bsw@11 408 local json_request_slots = request.get_json_request_slots()
jbe/bsw@11 409 if json_request_slots then
jbe/bsw@11 410 redirect_params["_webmcp_json_slots[]"] = json_request_slots
jbe/bsw@11 411 end
jbe/bsw@0 412 cgi.redirect(
jbe/bsw@0 413 encode.url{
jbe/bsw@0 414 base = request.get_absolute_baseurl(),
jbe/bsw@0 415 module = redirect_data.module,
jbe/bsw@0 416 view = redirect_data.view,
jbe/bsw@0 417 id = redirect_data.id,
jbe@113 418 params = redirect_params,
jbe@113 419 anchor = redirect_data.anchor
jbe/bsw@0 420 }
jbe/bsw@0 421 )
jbe/bsw@0 422 cgi.send_data()
jbe/bsw@0 423 end
jbe/bsw@0 424
jbe/bsw@0 425 if not success or not redirect_data then
jbe/bsw@0 426
jbe/bsw@0 427 local http_status = request.get_status()
jbe/bsw@0 428 if http_status then
jbe/bsw@0 429 cgi.set_status(http_status)
jbe/bsw@0 430 end
jbe/bsw@0 431
jbe@1 432 local json_request_slots = request.get_json_request_slots()
jbe@1 433 if json_request_slots then
jbe@1 434 cgi.set_content_type('application/json')
jbe@1 435 local data = {}
jbe@1 436 for idx, slot_ident in ipairs(json_request_slots) do
jbe@1 437 data[slot_ident] = slot.get_content(slot_ident)
jbe/bsw@0 438 end
jbe@1 439 cgi.send_data(encode.json(data))
jbe/bsw@0 440 else
jbe/bsw@0 441 cgi.set_content_type(slot.get_content_type())
jbe/bsw@0 442 cgi.send_data(slot.render_layout())
jbe/bsw@0 443 end
jbe/bsw@0 444 end
jbe/bsw@0 445
jbe@204 446 --]]
jbe@204 447

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