webmcp

annotate framework/cgi-bin/webmcp.lua @ 6:5cba83b3f411

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Version 1.0.6

Bugfix: class_prototype:add_reference{...} uses now qualified names in SQL queries to allow JOINs

Fixes in the documentation of slot.put_into and trace.debug
author jbe/bsw
date Fri Jan 22 12:00:00 2010 +0100 (2010-01-22)
parents 4fb227630097
children d76a8857ba62
rev   line source
jbe/bsw@0 1 #!/usr/bin/env lua
jbe/bsw@0 2
jbe/bsw@6 3 _WEBMCP_VERSION = "1.0.6"
jbe@1 4
jbe/bsw@0 5 -- include "../lib/" in search path for libraries
jbe/bsw@0 6 do
jbe/bsw@0 7 package.path = '../lib/?.lua;' .. package.path
jbe/bsw@0 8 -- find out which file name extension shared libraries have
jbe/bsw@0 9 local slib_exts = {}
jbe/bsw@0 10 for ext in string.gmatch(package.cpath, "%?%.([A-Za-z0-9_-]+)") do
jbe/bsw@0 11 slib_exts[ext] = true
jbe/bsw@0 12 end
jbe/bsw@0 13 local paths = {}
jbe/bsw@0 14 for ext in pairs(slib_exts) do
jbe/bsw@0 15 paths[#paths+1] = "../accelerator/?." .. ext
jbe/bsw@0 16 end
jbe/bsw@0 17 for ext in pairs(slib_exts) do
jbe/bsw@0 18 paths[#paths+1] = "../lib/?." .. ext
jbe/bsw@0 19 end
jbe/bsw@0 20 paths[#paths+1] = package.cpath
jbe/bsw@0 21 package.cpath = table.concat(paths, ";")
jbe/bsw@0 22 end
jbe/bsw@0 23
jbe/bsw@0 24 -- load os extensions for lua
jbe/bsw@0 25 -- (should happen as soon as possible due to run time measurement)
jbe/bsw@0 26 require 'extos'
jbe/bsw@0 27
jbe/bsw@0 28 -- load nihil library
jbe/bsw@0 29 require 'nihil'
jbe/bsw@0 30
jbe/bsw@0 31 -- load random generator library
jbe/bsw@0 32 require 'multirand'
jbe/bsw@0 33
jbe/bsw@0 34 -- load rocketcgi library and map it to cgi
jbe/bsw@0 35 do
jbe/bsw@0 36 local option = os.getenv("WEBMCP_INTERACTIVE")
jbe/bsw@0 37 if option and option ~= "" and option ~= "0" then
jbe/bsw@0 38 cgi = nil
jbe/bsw@0 39 else
jbe/bsw@0 40 require 'rocketcgi'
jbe/bsw@0 41 cgi = rocketcgi
jbe/bsw@0 42 end
jbe/bsw@0 43 end
jbe/bsw@0 44
jbe/bsw@0 45 -- load database access library with object relational mapper
jbe/bsw@0 46 require 'mondelefant'
jbe/bsw@0 47 mondelefant.connection_prototype.error_objects = true
jbe/bsw@0 48
jbe/bsw@0 49 -- load type system "atom"
jbe/bsw@0 50 require 'atom'
jbe/bsw@0 51
jbe/bsw@0 52 -- load mondelefant atom connector
jbe/bsw@0 53 require 'mondelefant_atom_connector'
jbe/bsw@0 54
jbe/bsw@0 55 --[[--
jbe/bsw@0 56 cloned_table = -- newly generated table
jbe/bsw@0 57 table.new(
jbe/bsw@0 58 table_or_nil -- keys of a given table will be copied to the new table
jbe/bsw@0 59 )
jbe/bsw@0 60
jbe/bsw@0 61 If a table is given, then a cloned table is returned.
jbe/bsw@0 62 If nil is given, then a new empty table is returned.
jbe/bsw@0 63
jbe/bsw@0 64 --]]--
jbe/bsw@0 65 function table.new(tbl)
jbe/bsw@0 66 new_tbl = {}
jbe/bsw@0 67 if tbl then
jbe/bsw@0 68 for key, value in pairs(tbl) do
jbe/bsw@0 69 new_tbl[key] = value
jbe/bsw@0 70 end
jbe/bsw@0 71 end
jbe/bsw@0 72 return new_tbl
jbe/bsw@0 73 end
jbe/bsw@0 74 --//--
jbe/bsw@0 75
jbe/bsw@0 76 --[[--
jbe/bsw@0 77 at_exit(
jbe/bsw@0 78 func -- function to be called before the process is ending
jbe/bsw@0 79 )
jbe/bsw@0 80
jbe/bsw@0 81 Registers a function to be called before the CGI process is exiting.
jbe/bsw@0 82 --]]--
jbe/bsw@0 83 do
jbe/bsw@0 84 local exit_handlers = {}
jbe/bsw@0 85 function at_exit(func)
jbe/bsw@0 86 table.insert(exit_handlers, func)
jbe/bsw@0 87 end
jbe/bsw@0 88 function exit(code)
jbe/bsw@0 89 for i = #exit_handlers, 1, -1 do
jbe/bsw@0 90 exit_handlers[i]()
jbe/bsw@0 91 end
jbe/bsw@0 92 os.exit(code)
jbe/bsw@0 93 end
jbe/bsw@0 94 end
jbe/bsw@0 95 --//--
jbe/bsw@0 96
jbe/bsw@0 97 --[[--
jbe/bsw@0 98 app -- table to store an application state
jbe/bsw@0 99
jbe/bsw@0 100 'app' is a global table for storing any application state data
jbe/bsw@0 101 --]]--
jbe/bsw@0 102 app = {}
jbe/bsw@0 103 --//--
jbe/bsw@0 104
jbe/bsw@0 105 --[[--
jbe/bsw@0 106 config -- table to store application configuration
jbe/bsw@0 107
jbe/bsw@0 108 'config' is a global table, which can be modified by a config file of an application to modify the behaviour of that application.
jbe/bsw@0 109 --]]--
jbe/bsw@0 110 config = {}
jbe/bsw@0 111 --//--
jbe/bsw@0 112
jbe/bsw@0 113 -- autoloader system for WebMCP environment "../env/",
jbe/bsw@0 114 -- application environment extensions "$WEBMCP_APP_BASE/env/"
jbe/bsw@0 115 -- and models "$WEBMCP_APP_BASE/model/"
jbe/bsw@0 116 do
jbe/bsw@0 117 local app_base = os.getenv("WEBMCP_APP_BASEPATH")
jbe/bsw@0 118 if not app_base then
jbe/bsw@0 119 error(
jbe/bsw@0 120 "Failed to initialize autoloader " ..
jbe/bsw@0 121 "due to unset WEBMCP_APP_BASEPATH environment variable."
jbe/bsw@0 122 )
jbe/bsw@0 123 end
jbe/bsw@0 124 local weakkey_mt = { __mode = "k" }
jbe/bsw@0 125 local autoloader_category = setmetatable({}, weakkey_mt)
jbe/bsw@0 126 local autoloader_path = setmetatable({}, weakkey_mt)
jbe/bsw@0 127 local autoloader_mt = {}
jbe/bsw@0 128 local function install_autoloader(self, category, path)
jbe/bsw@0 129 autoloader_category[self] = category
jbe/bsw@0 130 autoloader_path[self] = path
jbe/bsw@0 131 setmetatable(self, autoloader_mt)
jbe/bsw@0 132 end
jbe/bsw@0 133 local function try_exec(filename)
jbe/bsw@0 134 local file = io.open(filename, "r")
jbe/bsw@0 135 if file then
jbe/bsw@0 136 local filedata = file:read("*a")
jbe/bsw@0 137 io.close(file)
jbe/bsw@0 138 local func, errmsg = loadstring(filedata, "=" .. filename)
jbe/bsw@0 139 if func then
jbe/bsw@0 140 func()
jbe/bsw@0 141 return true
jbe/bsw@0 142 else
jbe/bsw@0 143 error(errmsg, 0)
jbe/bsw@0 144 end
jbe/bsw@0 145 else
jbe/bsw@0 146 return false
jbe/bsw@0 147 end
jbe/bsw@0 148 end
jbe/bsw@0 149 local function compose_path_string(base, path, key)
jbe/bsw@0 150 return string.gsub(
jbe/bsw@0 151 base .. table.concat(path, "/") .. "/" .. key, "/+", "/"
jbe/bsw@0 152 )
jbe/bsw@0 153 end
jbe/bsw@0 154 function autoloader_mt.__index(self, key)
jbe/bsw@0 155 local category, base_path, merge_base_path, file_key
jbe/bsw@0 156 local merge = false
jbe/bsw@0 157 if
jbe/bsw@0 158 string.find(key, "^[a-z_][A-Za-z0-9_]*$") and
jbe/bsw@0 159 not string.find(key, "^__")
jbe/bsw@0 160 then
jbe/bsw@0 161 category = "env"
jbe/bsw@0 162 base_path = "../env/"
jbe/bsw@0 163 merge = true
jbe/bsw@0 164 merge_base_path = app_base .. "/env/"
jbe/bsw@0 165 file_key = key
jbe/bsw@0 166 elseif string.find(key, "^[A-Z][A-Za-z0-9]*$") then
jbe/bsw@0 167 category = "model"
jbe/bsw@0 168 base_path = app_base .. "/model/"
jbe/bsw@0 169 local first = true
jbe/bsw@0 170 file_key = string.gsub(key, "[A-Z]",
jbe/bsw@0 171 function(c)
jbe/bsw@0 172 if first then
jbe/bsw@0 173 first = false
jbe/bsw@0 174 return string.lower(c)
jbe/bsw@0 175 else
jbe/bsw@0 176 return "_" .. string.lower(c)
jbe/bsw@0 177 end
jbe/bsw@0 178 end
jbe/bsw@0 179 )
jbe/bsw@0 180 else
jbe/bsw@0 181 return
jbe/bsw@0 182 end
jbe/bsw@0 183 local required_category = autoloader_category[self]
jbe/bsw@0 184 if required_category and required_category ~= category then return end
jbe/bsw@0 185 local path = autoloader_path[self]
jbe/bsw@0 186 local path_string = compose_path_string(base_path, path, file_key)
jbe/bsw@0 187 local merge_path_string
jbe/bsw@0 188 if merge then
jbe/bsw@0 189 merge_path_string = compose_path_string(
jbe/bsw@0 190 merge_base_path, path, file_key
jbe/bsw@0 191 )
jbe/bsw@0 192 end
jbe/bsw@0 193 local function try_dir(dirname)
jbe/bsw@0 194 local dir = io.open(dirname)
jbe/bsw@0 195 if dir then
jbe/bsw@0 196 io.close(dir)
jbe/bsw@0 197 local obj = {}
jbe/bsw@0 198 local sub_path = {}
jbe/bsw@0 199 for i, v in ipairs(path) do sub_path[i] = v end
jbe/bsw@0 200 table.insert(sub_path, file_key)
jbe/bsw@0 201 install_autoloader(obj, category, sub_path)
jbe/bsw@0 202 rawset(self, key, obj)
jbe/bsw@0 203 try_exec(path_string .. "/__init.lua")
jbe/bsw@0 204 if merge then try_exec(merge_path_string .. "/__init.lua") end
jbe/bsw@0 205 return true
jbe/bsw@0 206 else
jbe/bsw@0 207 return false
jbe/bsw@0 208 end
jbe/bsw@0 209 end
jbe/bsw@0 210 if merge and try_exec(merge_path_string .. ".lua") then
jbe/bsw@0 211 elseif merge and try_dir(merge_path_string .. "/") then
jbe/bsw@0 212 elseif try_exec(path_string .. ".lua") then
jbe/bsw@0 213 elseif try_dir(path_string .. "/") then
jbe/bsw@0 214 else end
jbe/bsw@0 215 return rawget(self, key)
jbe/bsw@0 216 end
jbe/bsw@0 217 install_autoloader(_G, nil, {})
jbe/bsw@0 218 try_exec("../env/__init.lua")
jbe/bsw@0 219 end
jbe/bsw@0 220
jbe/bsw@0 221 -- interactive console mode
jbe/bsw@0 222 if not cgi then
jbe/bsw@0 223 local config_name = request.get_config_name()
jbe/bsw@0 224 if config_name then
jbe/bsw@0 225 execute.config(config_name)
jbe/bsw@0 226 end
jbe/bsw@0 227 return
jbe/bsw@0 228 end
jbe/bsw@0 229
jbe/bsw@0 230 local success, error_info = xpcall(
jbe/bsw@0 231 function()
jbe/bsw@0 232
jbe/bsw@0 233 -- execute configuration file
jbe/bsw@0 234 do
jbe/bsw@0 235 local config_name = request.get_config_name()
jbe/bsw@0 236 if config_name then
jbe/bsw@0 237 execute.config(config_name)
jbe/bsw@0 238 end
jbe/bsw@0 239 end
jbe/bsw@0 240
jbe/bsw@0 241 -- restore slots if coming from http redirect
jbe/bsw@0 242 if cgi.params.tempstore then
jbe/bsw@0 243 trace.restore_slots{}
jbe/bsw@0 244 local blob = tempstore.pop(cgi.params.tempstore)
jbe/bsw@0 245 if blob then slot.restore_all(blob) end
jbe/bsw@0 246 end
jbe/bsw@0 247
jbe/bsw@0 248 local function file_exists(filename)
jbe/bsw@0 249 local file = io.open(filename, "r")
jbe/bsw@0 250 if file then
jbe/bsw@0 251 io.close(file)
jbe/bsw@0 252 return true
jbe/bsw@0 253 else
jbe/bsw@0 254 return false
jbe/bsw@0 255 end
jbe/bsw@0 256 end
jbe/bsw@0 257
jbe/bsw@0 258 if cgi.params["_webmcp_404"] then
jbe/bsw@0 259 request.force_absolute_baseurl()
jbe/bsw@0 260 request.set_status("404 Not Found")
jbe/bsw@0 261 if request.get_404_route() then
jbe/bsw@0 262 request.forward(request.get_404_route())
jbe/bsw@0 263 else
jbe/bsw@0 264 error("No 404 page set.")
jbe/bsw@0 265 end
jbe/bsw@0 266 elseif request.get_action() then
jbe/bsw@0 267 trace.request{
jbe/bsw@0 268 module = request.get_module(),
jbe/bsw@0 269 action = request.get_action()
jbe/bsw@0 270 }
jbe/bsw@0 271 if
jbe/bsw@0 272 request.get_404_route() and
jbe/bsw@0 273 not file_exists(
jbe/bsw@0 274 encode.action_file_path{
jbe/bsw@0 275 module = request.get_module(),
jbe/bsw@0 276 action = request.get_action()
jbe/bsw@0 277 }
jbe/bsw@0 278 )
jbe/bsw@0 279 then
jbe/bsw@0 280 request.set_status("404 Not Found")
jbe/bsw@0 281 request.forward(request.get_404_route())
jbe/bsw@0 282 else
jbe/bsw@0 283 if cgi.method ~= "POST" then
jbe/bsw@0 284 request.set_status("405 Method Not Allowed")
jbe/bsw@0 285 cgi.add_header("Allow: POST")
jbe/bsw@0 286 error("Tried to invoke an action with a GET request.")
jbe/bsw@0 287 end
jbe/bsw@0 288 local action_status = execute.filtered_action{
jbe/bsw@0 289 module = request.get_module(),
jbe/bsw@0 290 action = request.get_action(),
jbe/bsw@0 291 }
jbe/bsw@0 292 if not request.is_rerouted() then
jbe/bsw@0 293 local routing_mode, routing_module, routing_view
jbe/bsw@0 294 routing_mode = cgi.params["_webmcp_routing." .. action_status .. ".mode"]
jbe/bsw@0 295 routing_module = cgi.params["_webmcp_routing." .. action_status .. ".module"]
jbe/bsw@0 296 routing_view = cgi.params["_webmcp_routing." .. action_status .. ".view"]
jbe/bsw@0 297 if not (routing_mode or routing_module or routing_view) then
jbe/bsw@0 298 action_status = "default"
jbe/bsw@0 299 routing_mode = cgi.params["_webmcp_routing.default.mode"]
jbe/bsw@0 300 routing_module = cgi.params["_webmcp_routing.default.module"]
jbe/bsw@0 301 routing_view = cgi.params["_webmcp_routing.default.view"]
jbe/bsw@0 302 end
jbe/bsw@0 303 assert(routing_module, "Routing information has no module.")
jbe/bsw@0 304 assert(routing_view, "Routing information has no view.")
jbe/bsw@0 305 if routing_mode == "redirect" then
jbe/bsw@0 306 local routing_params = {}
jbe/bsw@0 307 for key, value in pairs(cgi.params) do
jbe/bsw@0 308 local status, stripped_key = string.match(
jbe/bsw@0 309 key, "^_webmcp_routing%.([^%.]*)%.params%.(.*)$"
jbe/bsw@0 310 )
jbe/bsw@0 311 if status == action_status then
jbe/bsw@0 312 routing_params[stripped_key] = value
jbe/bsw@0 313 end
jbe/bsw@0 314 end
jbe/bsw@0 315 request.redirect{
jbe/bsw@0 316 module = routing_module,
jbe/bsw@0 317 view = routing_view,
jbe/bsw@0 318 id = cgi.params["_webmcp_routing." .. action_status .. ".id"],
jbe/bsw@0 319 params = routing_params
jbe/bsw@0 320 }
jbe/bsw@0 321 elseif routing_mode == "forward" then
jbe/bsw@0 322 request.forward{ module = routing_module, view = routing_view }
jbe/bsw@0 323 else
jbe/bsw@0 324 error("Missing or unknown routing mode in request parameters.")
jbe/bsw@0 325 end
jbe/bsw@0 326 end
jbe/bsw@0 327 end
jbe/bsw@0 328 else
jbe/bsw@0 329 -- no action
jbe/bsw@0 330 trace.request{
jbe/bsw@0 331 module = request.get_module(),
jbe/bsw@0 332 view = request.get_view()
jbe/bsw@0 333 }
jbe/bsw@0 334 if
jbe/bsw@0 335 request.get_404_route() and
jbe/bsw@0 336 not file_exists(
jbe/bsw@0 337 encode.view_file_path{
jbe/bsw@0 338 module = request.get_module(),
jbe/bsw@0 339 view = request.get_view()
jbe/bsw@0 340 }
jbe/bsw@0 341 )
jbe/bsw@0 342 then
jbe/bsw@0 343 request.set_status("404 Not Found")
jbe/bsw@0 344 request.forward(request.get_404_route())
jbe/bsw@0 345 end
jbe/bsw@0 346 end
jbe/bsw@0 347
jbe/bsw@0 348 if not request.get_redirect_data() then
jbe@3 349 request.process_forward()
jbe/bsw@2 350 local view = request.get_view()
jbe/bsw@2 351 if string.find(view, "^_") then
jbe/bsw@2 352 error("Tried to call a private view (prefixed with underscore).")
jbe/bsw@2 353 end
jbe/bsw@0 354 execute.filtered_view{
jbe/bsw@0 355 module = request.get_module(),
jbe/bsw@2 356 view = view,
jbe/bsw@0 357 }
jbe/bsw@0 358 end
jbe/bsw@0 359
jbe/bsw@0 360 -- force error due to missing absolute base URL until its too late to display error message
jbe/bsw@0 361 --if request.get_redirect_data() then
jbe/bsw@0 362 -- request.get_absolute_baseurl()
jbe/bsw@0 363 --end
jbe/bsw@0 364
jbe/bsw@0 365 end,
jbe/bsw@0 366
jbe/bsw@0 367 function(errobj)
jbe/bsw@0 368 return {
jbe/bsw@0 369 errobj = errobj,
jbe/bsw@0 370 stacktrace = string.gsub(
jbe/bsw@0 371 debug.traceback('', 2),
jbe/bsw@0 372 "^\r?\n?stack traceback:\r?\n?", ""
jbe/bsw@0 373 )
jbe/bsw@0 374 }
jbe/bsw@0 375 end
jbe/bsw@0 376 )
jbe/bsw@0 377
jbe/bsw@0 378 if not success then trace.error{} end
jbe/bsw@0 379
jbe/bsw@0 380 -- laufzeitermittlung
jbe/bsw@0 381 trace.exectime{ real = os.monotonic_hires_time(), cpu = os.clock() }
jbe/bsw@0 382
jbe/bsw@0 383 slot.select('trace', trace.render) -- render trace information
jbe/bsw@0 384
jbe/bsw@0 385 local redirect_data = request.get_redirect_data()
jbe/bsw@0 386
jbe/bsw@0 387 -- log error and switch to error layout, unless success
jbe/bsw@0 388 if not success then
jbe/bsw@0 389 local errobj = error_info.errobj
jbe/bsw@0 390 local stacktrace = error_info.stacktrace
jbe/bsw@0 391 if not request.get_status() then
jbe/bsw@0 392 request.set_status("500 Internal Server Error")
jbe/bsw@0 393 end
jbe/bsw@0 394 slot.set_layout('system_error')
jbe/bsw@0 395 slot.select('system_error', function()
jbe/bsw@0 396 if getmetatable(errobj) == mondelefant.errorobject_metatable then
jbe/bsw@0 397 slot.put(
jbe/bsw@0 398 "<p>Database error of class <b>",
jbe/bsw@0 399 encode.html(errobj.code),
jbe/bsw@0 400 "</b> occured:<br/><b>",
jbe/bsw@0 401 encode.html(errobj.message),
jbe/bsw@0 402 "</b></p>"
jbe/bsw@0 403 )
jbe/bsw@0 404 else
jbe/bsw@0 405 slot.put("<p><b>", encode.html(tostring(errobj)), "</b></p>")
jbe/bsw@0 406 end
jbe/bsw@0 407 slot.put("<p>Stack trace follows:<br/>")
jbe/bsw@0 408 slot.put(encode.html_newlines(encode.html(stacktrace)))
jbe/bsw@0 409 slot.put("</p>")
jbe/bsw@0 410 end)
jbe/bsw@0 411 elseif redirect_data then
jbe/bsw@0 412 local redirect_params = {}
jbe/bsw@0 413 for key, value in pairs(redirect_data.params) do
jbe/bsw@0 414 redirect_params[key] = value
jbe/bsw@0 415 end
jbe/bsw@0 416 local slot_dump = slot.dump_all()
jbe/bsw@0 417 if slot_dump ~= "" then
jbe/bsw@0 418 redirect_params.tempstore = tempstore.save(slot_dump)
jbe/bsw@0 419 end
jbe/bsw@0 420 cgi.redirect(
jbe/bsw@0 421 encode.url{
jbe/bsw@0 422 base = request.get_absolute_baseurl(),
jbe/bsw@0 423 module = redirect_data.module,
jbe/bsw@0 424 view = redirect_data.view,
jbe/bsw@0 425 id = redirect_data.id,
jbe/bsw@0 426 params = redirect_params
jbe/bsw@0 427 }
jbe/bsw@0 428 )
jbe/bsw@0 429 cgi.send_data()
jbe/bsw@0 430 end
jbe/bsw@0 431
jbe/bsw@0 432 if not success or not redirect_data then
jbe/bsw@0 433
jbe/bsw@0 434 local http_status = request.get_status()
jbe/bsw@0 435 if http_status then
jbe/bsw@0 436 cgi.set_status(http_status)
jbe/bsw@0 437 end
jbe/bsw@0 438
jbe@1 439 local json_request_slots = request.get_json_request_slots()
jbe@1 440 if json_request_slots then
jbe@1 441 cgi.set_content_type('application/json')
jbe@1 442 local data = {}
jbe@1 443 for idx, slot_ident in ipairs(json_request_slots) do
jbe@1 444 data[slot_ident] = slot.get_content(slot_ident)
jbe/bsw@0 445 end
jbe@1 446 cgi.send_data(encode.json(data))
jbe/bsw@0 447 else
jbe/bsw@0 448 cgi.set_content_type(slot.get_content_type())
jbe/bsw@0 449 cgi.send_data(slot.render_layout())
jbe/bsw@0 450 end
jbe/bsw@0 451 end
jbe/bsw@0 452
jbe/bsw@0 453 exit()

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