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NAME

       mod_alias - URL aliasing.

DESCRIPTION

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

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 Users Guide..

       path(PathData, ConfigDB, RequestURI) -> Path

              Types:

                 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

              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, 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

              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,    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..