19972013 Ericsson AB. All Rights Reserved. The contents of this file are subject to the Erlang Public License, Version 1.1, (the "License"); you may not use this file except in compliance with the License. You should have received a copy of the Erlang Public License along with this software. If not, it can be retrieved online at http://www.erlang.org/. Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. mod_alias Joakim Grebenö 1997-10-14 2.2 mod_alias.sgml
mod_alias URL aliasing.

Erlang Webserver Server internal API for handling of things such as interaction data exported by the mod_alias module.

 default_index(ConfigDB, Path) -> NewPath Return a new path with the default resource or file appended. ConfigDB = config_db() Path = NewPath = string()

If Path is a directory, default_index/2, it starts searching for resources or files that are specified in the config directive DirectoryIndex. If an appropriate resource or file is found, it is appended to the end of Path and then returned. Path is returned unaltered, if no appropriate file is found, or if Path is not a directory. config_db() is the server config file in ETS table format as described in Inets Users Guide..

 path(PathData, ConfigDB, RequestURI) -> Path Return the actual file path to a URL. PathData = interaction_data() ConfigDB = config_db() RequestURI = Path = string()

path/3 returns the actual file Path in the RequestURI (See RFC 1945). If the interaction data {real_name,{Path,AfterPath}} has been exported by mod_alias; Path is returned. If no interaction data has been exported, ServerRoot is used to generate a file Path. config_db() and interaction_data() are as defined in Inets Users Guide.

 real_name(ConfigDB, RequestURI, Aliases) -> Ret Expand a request uri using Alias config directives. ConfigDB = config_db() RequestURI = string() Aliases = [{FakeName,RealName}] Ret = {ShortPath,Path,AfterPath} ShortPath = Path = AfterPath = string()

real_name/3 traverses Aliases, typically extracted from ConfigDB, and matches each FakeName with RequestURI. If a match is found FakeName is replaced with RealName in the match. The resulting path is split into two parts, that is ShortPath and AfterPath as defined in httpd_util:split_path/1. Path is generated from ShortPath, that is the result from default_index/2 with ShortPath as an argument. config_db() is the server config file in ETS table format as described in Inets User Guide..

real_script_name(ConfigDB, RequestURI, ScriptAliases) -> Ret Expand a request uri using ScriptAlias config directives. ConfigDB = config_db() RequestURI = string() ScriptAliases = [{FakeName,RealName}] Ret = {ShortPath,AfterPath} | not_a_script ShortPath = AfterPath = string()

real_script_name/3 traverses ScriptAliases, typically extracted from ConfigDB, and matches each FakeName with RequestURI. If a match is found FakeName is replaced with RealName in the match. If the resulting match is not an executable script not_a_script is returned. If it is a script the resulting script path is in two parts, that is ShortPath and AfterPath as defined in httpd_util:split_script_path/1. config_db() is the server config file in ETS table format as described in Inets Users Guide..