webmcp

annotate framework/cgi-bin/webmcp.lua @ 0:9fdfb27f8e67

Version 1.0.0
author jbe/bsw
date Sun Oct 25 12:00:00 2009 +0100 (2009-10-25)
parents
children 985024b16520
rev   line source
jbe/bsw@0 1 #!/usr/bin/env lua
jbe/bsw@0 2
jbe/bsw@0 3 -- include "../lib/" in search path for libraries
jbe/bsw@0 4 do
jbe/bsw@0 5 package.path = '../lib/?.lua;' .. package.path
jbe/bsw@0 6 -- find out which file name extension shared libraries have
jbe/bsw@0 7 local slib_exts = {}
jbe/bsw@0 8 for ext in string.gmatch(package.cpath, "%?%.([A-Za-z0-9_-]+)") do
jbe/bsw@0 9 slib_exts[ext] = true
jbe/bsw@0 10 end
jbe/bsw@0 11 local paths = {}
jbe/bsw@0 12 for ext in pairs(slib_exts) do
jbe/bsw@0 13 paths[#paths+1] = "../accelerator/?." .. ext
jbe/bsw@0 14 end
jbe/bsw@0 15 for ext in pairs(slib_exts) do
jbe/bsw@0 16 paths[#paths+1] = "../lib/?." .. ext
jbe/bsw@0 17 end
jbe/bsw@0 18 paths[#paths+1] = package.cpath
jbe/bsw@0 19 package.cpath = table.concat(paths, ";")
jbe/bsw@0 20 end
jbe/bsw@0 21
jbe/bsw@0 22 -- load os extensions for lua
jbe/bsw@0 23 -- (should happen as soon as possible due to run time measurement)
jbe/bsw@0 24 require 'extos'
jbe/bsw@0 25
jbe/bsw@0 26 -- load nihil library
jbe/bsw@0 27 require 'nihil'
jbe/bsw@0 28
jbe/bsw@0 29 -- load random generator library
jbe/bsw@0 30 require 'multirand'
jbe/bsw@0 31
jbe/bsw@0 32 -- load rocketcgi library and map it to cgi
jbe/bsw@0 33 do
jbe/bsw@0 34 local option = os.getenv("WEBMCP_INTERACTIVE")
jbe/bsw@0 35 if option and option ~= "" and option ~= "0" then
jbe/bsw@0 36 cgi = nil
jbe/bsw@0 37 else
jbe/bsw@0 38 require 'rocketcgi'
jbe/bsw@0 39 cgi = rocketcgi
jbe/bsw@0 40 end
jbe/bsw@0 41 end
jbe/bsw@0 42
jbe/bsw@0 43 -- load database access library with object relational mapper
jbe/bsw@0 44 require 'mondelefant'
jbe/bsw@0 45 mondelefant.connection_prototype.error_objects = true
jbe/bsw@0 46
jbe/bsw@0 47 -- load type system "atom"
jbe/bsw@0 48 require 'atom'
jbe/bsw@0 49
jbe/bsw@0 50 -- load mondelefant atom connector
jbe/bsw@0 51 require 'mondelefant_atom_connector'
jbe/bsw@0 52
jbe/bsw@0 53 --[[--
jbe/bsw@0 54 cloned_table = -- newly generated table
jbe/bsw@0 55 table.new(
jbe/bsw@0 56 table_or_nil -- keys of a given table will be copied to the new table
jbe/bsw@0 57 )
jbe/bsw@0 58
jbe/bsw@0 59 If a table is given, then a cloned table is returned.
jbe/bsw@0 60 If nil is given, then a new empty table is returned.
jbe/bsw@0 61
jbe/bsw@0 62 --]]--
jbe/bsw@0 63 function table.new(tbl)
jbe/bsw@0 64 new_tbl = {}
jbe/bsw@0 65 if tbl then
jbe/bsw@0 66 for key, value in pairs(tbl) do
jbe/bsw@0 67 new_tbl[key] = value
jbe/bsw@0 68 end
jbe/bsw@0 69 end
jbe/bsw@0 70 return new_tbl
jbe/bsw@0 71 end
jbe/bsw@0 72 --//--
jbe/bsw@0 73
jbe/bsw@0 74 --[[--
jbe/bsw@0 75 at_exit(
jbe/bsw@0 76 func -- function to be called before the process is ending
jbe/bsw@0 77 )
jbe/bsw@0 78
jbe/bsw@0 79 Registers a function to be called before the CGI process is exiting.
jbe/bsw@0 80 --]]--
jbe/bsw@0 81 do
jbe/bsw@0 82 local exit_handlers = {}
jbe/bsw@0 83 function at_exit(func)
jbe/bsw@0 84 table.insert(exit_handlers, func)
jbe/bsw@0 85 end
jbe/bsw@0 86 function exit(code)
jbe/bsw@0 87 for i = #exit_handlers, 1, -1 do
jbe/bsw@0 88 exit_handlers[i]()
jbe/bsw@0 89 end
jbe/bsw@0 90 os.exit(code)
jbe/bsw@0 91 end
jbe/bsw@0 92 end
jbe/bsw@0 93 --//--
jbe/bsw@0 94
jbe/bsw@0 95 --[[--
jbe/bsw@0 96 app -- table to store an application state
jbe/bsw@0 97
jbe/bsw@0 98 'app' is a global table for storing any application state data
jbe/bsw@0 99 --]]--
jbe/bsw@0 100 app = {}
jbe/bsw@0 101 --//--
jbe/bsw@0 102
jbe/bsw@0 103 --[[--
jbe/bsw@0 104 config -- table to store application configuration
jbe/bsw@0 105
jbe/bsw@0 106 '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@0 107 --]]--
jbe/bsw@0 108 config = {}
jbe/bsw@0 109 --//--
jbe/bsw@0 110
jbe/bsw@0 111 -- autoloader system for WebMCP environment "../env/",
jbe/bsw@0 112 -- application environment extensions "$WEBMCP_APP_BASE/env/"
jbe/bsw@0 113 -- and models "$WEBMCP_APP_BASE/model/"
jbe/bsw@0 114 do
jbe/bsw@0 115 local app_base = os.getenv("WEBMCP_APP_BASEPATH")
jbe/bsw@0 116 if not app_base then
jbe/bsw@0 117 error(
jbe/bsw@0 118 "Failed to initialize autoloader " ..
jbe/bsw@0 119 "due to unset WEBMCP_APP_BASEPATH environment variable."
jbe/bsw@0 120 )
jbe/bsw@0 121 end
jbe/bsw@0 122 local weakkey_mt = { __mode = "k" }
jbe/bsw@0 123 local autoloader_category = setmetatable({}, weakkey_mt)
jbe/bsw@0 124 local autoloader_path = setmetatable({}, weakkey_mt)
jbe/bsw@0 125 local autoloader_mt = {}
jbe/bsw@0 126 local function install_autoloader(self, category, path)
jbe/bsw@0 127 autoloader_category[self] = category
jbe/bsw@0 128 autoloader_path[self] = path
jbe/bsw@0 129 setmetatable(self, autoloader_mt)
jbe/bsw@0 130 end
jbe/bsw@0 131 local function try_exec(filename)
jbe/bsw@0 132 local file = io.open(filename, "r")
jbe/bsw@0 133 if file then
jbe/bsw@0 134 local filedata = file:read("*a")
jbe/bsw@0 135 io.close(file)
jbe/bsw@0 136 local func, errmsg = loadstring(filedata, "=" .. filename)
jbe/bsw@0 137 if func then
jbe/bsw@0 138 func()
jbe/bsw@0 139 return true
jbe/bsw@0 140 else
jbe/bsw@0 141 error(errmsg, 0)
jbe/bsw@0 142 end
jbe/bsw@0 143 else
jbe/bsw@0 144 return false
jbe/bsw@0 145 end
jbe/bsw@0 146 end
jbe/bsw@0 147 local function compose_path_string(base, path, key)
jbe/bsw@0 148 return string.gsub(
jbe/bsw@0 149 base .. table.concat(path, "/") .. "/" .. key, "/+", "/"
jbe/bsw@0 150 )
jbe/bsw@0 151 end
jbe/bsw@0 152 function autoloader_mt.__index(self, key)
jbe/bsw@0 153 local category, base_path, merge_base_path, file_key
jbe/bsw@0 154 local merge = false
jbe/bsw@0 155 if
jbe/bsw@0 156 string.find(key, "^[a-z_][A-Za-z0-9_]*$") and
jbe/bsw@0 157 not string.find(key, "^__")
jbe/bsw@0 158 then
jbe/bsw@0 159 category = "env"
jbe/bsw@0 160 base_path = "../env/"
jbe/bsw@0 161 merge = true
jbe/bsw@0 162 merge_base_path = app_base .. "/env/"
jbe/bsw@0 163 file_key = key
jbe/bsw@0 164 elseif string.find(key, "^[A-Z][A-Za-z0-9]*$") then
jbe/bsw@0 165 category = "model"
jbe/bsw@0 166 base_path = app_base .. "/model/"
jbe/bsw@0 167 local first = true
jbe/bsw@0 168 file_key = string.gsub(key, "[A-Z]",
jbe/bsw@0 169 function(c)
jbe/bsw@0 170 if first then
jbe/bsw@0 171 first = false
jbe/bsw@0 172 return string.lower(c)
jbe/bsw@0 173 else
jbe/bsw@0 174 return "_" .. string.lower(c)
jbe/bsw@0 175 end
jbe/bsw@0 176 end
jbe/bsw@0 177 )
jbe/bsw@0 178 else
jbe/bsw@0 179 return
jbe/bsw@0 180 end
jbe/bsw@0 181 local required_category = autoloader_category[self]
jbe/bsw@0 182 if required_category and required_category ~= category then return end
jbe/bsw@0 183 local path = autoloader_path[self]
jbe/bsw@0 184 local path_string = compose_path_string(base_path, path, file_key)
jbe/bsw@0 185 local merge_path_string
jbe/bsw@0 186 if merge then
jbe/bsw@0 187 merge_path_string = compose_path_string(
jbe/bsw@0 188 merge_base_path, path, file_key
jbe/bsw@0 189 )
jbe/bsw@0 190 end
jbe/bsw@0 191 local function try_dir(dirname)
jbe/bsw@0 192 local dir = io.open(dirname)
jbe/bsw@0 193 if dir then
jbe/bsw@0 194 io.close(dir)
jbe/bsw@0 195 local obj = {}
jbe/bsw@0 196 local sub_path = {}
jbe/bsw@0 197 for i, v in ipairs(path) do sub_path[i] = v end
jbe/bsw@0 198 table.insert(sub_path, file_key)
jbe/bsw@0 199 install_autoloader(obj, category, sub_path)
jbe/bsw@0 200 rawset(self, key, obj)
jbe/bsw@0 201 try_exec(path_string .. "/__init.lua")
jbe/bsw@0 202 if merge then try_exec(merge_path_string .. "/__init.lua") end
jbe/bsw@0 203 return true
jbe/bsw@0 204 else
jbe/bsw@0 205 return false
jbe/bsw@0 206 end
jbe/bsw@0 207 end
jbe/bsw@0 208 if merge and try_exec(merge_path_string .. ".lua") then
jbe/bsw@0 209 elseif merge and try_dir(merge_path_string .. "/") then
jbe/bsw@0 210 elseif try_exec(path_string .. ".lua") then
jbe/bsw@0 211 elseif try_dir(path_string .. "/") then
jbe/bsw@0 212 else end
jbe/bsw@0 213 return rawget(self, key)
jbe/bsw@0 214 end
jbe/bsw@0 215 install_autoloader(_G, nil, {})
jbe/bsw@0 216 try_exec("../env/__init.lua")
jbe/bsw@0 217 end
jbe/bsw@0 218
jbe/bsw@0 219 -- interactive console mode
jbe/bsw@0 220 if not cgi then
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 return
jbe/bsw@0 226 end
jbe/bsw@0 227
jbe/bsw@0 228 local success, error_info = xpcall(
jbe/bsw@0 229 function()
jbe/bsw@0 230
jbe/bsw@0 231 -- execute configuration file
jbe/bsw@0 232 do
jbe/bsw@0 233 local config_name = request.get_config_name()
jbe/bsw@0 234 if config_name then
jbe/bsw@0 235 execute.config(config_name)
jbe/bsw@0 236 end
jbe/bsw@0 237 end
jbe/bsw@0 238
jbe/bsw@0 239 -- restore slots if coming from http redirect
jbe/bsw@0 240 if cgi.params.tempstore then
jbe/bsw@0 241 trace.restore_slots{}
jbe/bsw@0 242 local blob = tempstore.pop(cgi.params.tempstore)
jbe/bsw@0 243 if blob then slot.restore_all(blob) end
jbe/bsw@0 244 end
jbe/bsw@0 245
jbe/bsw@0 246 local function file_exists(filename)
jbe/bsw@0 247 local file = io.open(filename, "r")
jbe/bsw@0 248 if file then
jbe/bsw@0 249 io.close(file)
jbe/bsw@0 250 return true
jbe/bsw@0 251 else
jbe/bsw@0 252 return false
jbe/bsw@0 253 end
jbe/bsw@0 254 end
jbe/bsw@0 255
jbe/bsw@0 256 if cgi.params["_webmcp_404"] then
jbe/bsw@0 257 request.force_absolute_baseurl()
jbe/bsw@0 258 request.set_status("404 Not Found")
jbe/bsw@0 259 if request.get_404_route() then
jbe/bsw@0 260 request.forward(request.get_404_route())
jbe/bsw@0 261 else
jbe/bsw@0 262 error("No 404 page set.")
jbe/bsw@0 263 end
jbe/bsw@0 264 elseif request.get_action() then
jbe/bsw@0 265 trace.request{
jbe/bsw@0 266 module = request.get_module(),
jbe/bsw@0 267 action = request.get_action()
jbe/bsw@0 268 }
jbe/bsw@0 269 if
jbe/bsw@0 270 request.get_404_route() and
jbe/bsw@0 271 not file_exists(
jbe/bsw@0 272 encode.action_file_path{
jbe/bsw@0 273 module = request.get_module(),
jbe/bsw@0 274 action = request.get_action()
jbe/bsw@0 275 }
jbe/bsw@0 276 )
jbe/bsw@0 277 then
jbe/bsw@0 278 request.set_status("404 Not Found")
jbe/bsw@0 279 request.forward(request.get_404_route())
jbe/bsw@0 280 else
jbe/bsw@0 281 if cgi.method ~= "POST" then
jbe/bsw@0 282 request.set_status("405 Method Not Allowed")
jbe/bsw@0 283 cgi.add_header("Allow: POST")
jbe/bsw@0 284 error("Tried to invoke an action with a GET request.")
jbe/bsw@0 285 end
jbe/bsw@0 286 local action_status = execute.filtered_action{
jbe/bsw@0 287 module = request.get_module(),
jbe/bsw@0 288 action = request.get_action(),
jbe/bsw@0 289 }
jbe/bsw@0 290 if not request.is_rerouted() then
jbe/bsw@0 291 local routing_mode, routing_module, routing_view
jbe/bsw@0 292 routing_mode = cgi.params["_webmcp_routing." .. action_status .. ".mode"]
jbe/bsw@0 293 routing_module = cgi.params["_webmcp_routing." .. action_status .. ".module"]
jbe/bsw@0 294 routing_view = cgi.params["_webmcp_routing." .. action_status .. ".view"]
jbe/bsw@0 295 if not (routing_mode or routing_module or routing_view) then
jbe/bsw@0 296 action_status = "default"
jbe/bsw@0 297 routing_mode = cgi.params["_webmcp_routing.default.mode"]
jbe/bsw@0 298 routing_module = cgi.params["_webmcp_routing.default.module"]
jbe/bsw@0 299 routing_view = cgi.params["_webmcp_routing.default.view"]
jbe/bsw@0 300 end
jbe/bsw@0 301 assert(routing_module, "Routing information has no module.")
jbe/bsw@0 302 assert(routing_view, "Routing information has no view.")
jbe/bsw@0 303 if routing_mode == "redirect" then
jbe/bsw@0 304 local routing_params = {}
jbe/bsw@0 305 for key, value in pairs(cgi.params) do
jbe/bsw@0 306 local status, stripped_key = string.match(
jbe/bsw@0 307 key, "^_webmcp_routing%.([^%.]*)%.params%.(.*)$"
jbe/bsw@0 308 )
jbe/bsw@0 309 if status == action_status then
jbe/bsw@0 310 routing_params[stripped_key] = value
jbe/bsw@0 311 end
jbe/bsw@0 312 end
jbe/bsw@0 313 request.redirect{
jbe/bsw@0 314 module = routing_module,
jbe/bsw@0 315 view = routing_view,
jbe/bsw@0 316 id = cgi.params["_webmcp_routing." .. action_status .. ".id"],
jbe/bsw@0 317 params = routing_params
jbe/bsw@0 318 }
jbe/bsw@0 319 elseif routing_mode == "forward" then
jbe/bsw@0 320 request.forward{ module = routing_module, view = routing_view }
jbe/bsw@0 321 else
jbe/bsw@0 322 error("Missing or unknown routing mode in request parameters.")
jbe/bsw@0 323 end
jbe/bsw@0 324 end
jbe/bsw@0 325 end
jbe/bsw@0 326 else
jbe/bsw@0 327 -- no action
jbe/bsw@0 328 trace.request{
jbe/bsw@0 329 module = request.get_module(),
jbe/bsw@0 330 view = request.get_view()
jbe/bsw@0 331 }
jbe/bsw@0 332 if
jbe/bsw@0 333 request.get_404_route() and
jbe/bsw@0 334 not file_exists(
jbe/bsw@0 335 encode.view_file_path{
jbe/bsw@0 336 module = request.get_module(),
jbe/bsw@0 337 view = request.get_view()
jbe/bsw@0 338 }
jbe/bsw@0 339 )
jbe/bsw@0 340 then
jbe/bsw@0 341 request.set_status("404 Not Found")
jbe/bsw@0 342 request.forward(request.get_404_route())
jbe/bsw@0 343 end
jbe/bsw@0 344 end
jbe/bsw@0 345
jbe/bsw@0 346 if not request.get_redirect_data() then
jbe/bsw@0 347 request.process_forward()
jbe/bsw@0 348 execute.filtered_view{
jbe/bsw@0 349 module = request.get_module(),
jbe/bsw@0 350 view = request.get_view(),
jbe/bsw@0 351 }
jbe/bsw@0 352 end
jbe/bsw@0 353
jbe/bsw@0 354 -- force error due to missing absolute base URL until its too late to display error message
jbe/bsw@0 355 --if request.get_redirect_data() then
jbe/bsw@0 356 -- request.get_absolute_baseurl()
jbe/bsw@0 357 --end
jbe/bsw@0 358
jbe/bsw@0 359 end,
jbe/bsw@0 360
jbe/bsw@0 361 function(errobj)
jbe/bsw@0 362 return {
jbe/bsw@0 363 errobj = errobj,
jbe/bsw@0 364 stacktrace = string.gsub(
jbe/bsw@0 365 debug.traceback('', 2),
jbe/bsw@0 366 "^\r?\n?stack traceback:\r?\n?", ""
jbe/bsw@0 367 )
jbe/bsw@0 368 }
jbe/bsw@0 369 end
jbe/bsw@0 370 )
jbe/bsw@0 371
jbe/bsw@0 372 if not success then trace.error{} end
jbe/bsw@0 373
jbe/bsw@0 374 -- laufzeitermittlung
jbe/bsw@0 375 trace.exectime{ real = os.monotonic_hires_time(), cpu = os.clock() }
jbe/bsw@0 376
jbe/bsw@0 377 slot.select('trace', trace.render) -- render trace information
jbe/bsw@0 378
jbe/bsw@0 379 local redirect_data = request.get_redirect_data()
jbe/bsw@0 380
jbe/bsw@0 381 -- log error and switch to error layout, unless success
jbe/bsw@0 382 if not success then
jbe/bsw@0 383 local errobj = error_info.errobj
jbe/bsw@0 384 local stacktrace = error_info.stacktrace
jbe/bsw@0 385 if not request.get_status() then
jbe/bsw@0 386 request.set_status("500 Internal Server Error")
jbe/bsw@0 387 end
jbe/bsw@0 388 slot.set_layout('system_error')
jbe/bsw@0 389 slot.select('system_error', function()
jbe/bsw@0 390 if getmetatable(errobj) == mondelefant.errorobject_metatable then
jbe/bsw@0 391 slot.put(
jbe/bsw@0 392 "<p>Database error of class <b>",
jbe/bsw@0 393 encode.html(errobj.code),
jbe/bsw@0 394 "</b> occured:<br/><b>",
jbe/bsw@0 395 encode.html(errobj.message),
jbe/bsw@0 396 "</b></p>"
jbe/bsw@0 397 )
jbe/bsw@0 398 else
jbe/bsw@0 399 slot.put("<p><b>", encode.html(tostring(errobj)), "</b></p>")
jbe/bsw@0 400 end
jbe/bsw@0 401 slot.put("<p>Stack trace follows:<br/>")
jbe/bsw@0 402 slot.put(encode.html_newlines(encode.html(stacktrace)))
jbe/bsw@0 403 slot.put("</p>")
jbe/bsw@0 404 end)
jbe/bsw@0 405 elseif redirect_data then
jbe/bsw@0 406 local redirect_params = {}
jbe/bsw@0 407 for key, value in pairs(redirect_data.params) do
jbe/bsw@0 408 redirect_params[key] = value
jbe/bsw@0 409 end
jbe/bsw@0 410 local slot_dump = slot.dump_all()
jbe/bsw@0 411 if slot_dump ~= "" then
jbe/bsw@0 412 redirect_params.tempstore = tempstore.save(slot_dump)
jbe/bsw@0 413 end
jbe/bsw@0 414 cgi.redirect(
jbe/bsw@0 415 encode.url{
jbe/bsw@0 416 base = request.get_absolute_baseurl(),
jbe/bsw@0 417 module = redirect_data.module,
jbe/bsw@0 418 view = redirect_data.view,
jbe/bsw@0 419 id = redirect_data.id,
jbe/bsw@0 420 params = redirect_params
jbe/bsw@0 421 }
jbe/bsw@0 422 )
jbe/bsw@0 423 cgi.send_data()
jbe/bsw@0 424 end
jbe/bsw@0 425
jbe/bsw@0 426 if not success or not redirect_data then
jbe/bsw@0 427
jbe/bsw@0 428 local http_status = request.get_status()
jbe/bsw@0 429 if http_status then
jbe/bsw@0 430 cgi.set_status(http_status)
jbe/bsw@0 431 end
jbe/bsw@0 432
jbe/bsw@0 433 -- ajax
jbe/bsw@0 434 if request.is_ajax() then
jbe/bsw@0 435 cgi.set_content_type('text/html')
jbe/bsw@0 436 for i, slot_ident in ipairs{'main', 'actions', 'title', 'topnav', 'sidenav', 'debug', 'notice', 'warning', 'error'} do
jbe/bsw@0 437 local html = slot.get_content(slot_ident)
jbe/bsw@0 438 if html then
jbe/bsw@0 439 cgi.send_data("document.getElementById('" .. slot_ident .. "').innerHTML=" .. encode.json(html or '&nbsp;') .. ";")
jbe/bsw@0 440 end
jbe/bsw@0 441 end
jbe/bsw@0 442 -- oder ganz herkoemmlich
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/bsw@0 449 exit()

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