NAME

       mod_alias - URL aliasing.

DESCRIPTION

       Erlang  web server internal API for handling of, for example, interaction data exported by
       module mod_alias.

EXPORTS

       default_index(ConfigDB, Path) -> NewPath

              Types:

                 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 User's Guide.

       path(PathData, ConfigDB, RequestURI) -> Path

              Types:

                 PathData = interaction_data()
                 ConfigDB = config_db()
                 RequestURI = Path = string()

              path/3  returns  the 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 User's Guide.

       real_name(ConfigDB, RequestURI, Aliases) -> Ret

              Types:

                 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, 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's Guide.

       real_script_name(ConfigDB, RequestURI, ScriptAliases) -> Ret

              Types:

                 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,  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
              User's Guide.