diff options
Diffstat (limited to 'lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/mod_include.erl')
| -rw-r--r-- | lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/mod_include.erl | 726 |
1 files changed, 726 insertions, 0 deletions
diff --git a/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/mod_include.erl b/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/mod_include.erl new file mode 100644 index 0000000000..c93e0a4f59 --- /dev/null +++ b/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/mod_include.erl @@ -0,0 +1,726 @@ +%% ``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 via the world wide web 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. +%% +%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. +%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings +%% AB. All Rights Reserved.'' +%% +%% $Id: mod_include.erl,v 1.1 2008/12/17 09:53:35 mikpe Exp $ +%% +-module(mod_include). +-export([do/1,parse/2,config/6,include/6,echo/6,fsize/6,flastmod/6,exec/6]). + +-include("httpd.hrl"). + +-define(VMODULE,"INCLUDE"). +-include("httpd_verbosity.hrl"). + +%% do + +do(Info) -> + ?vtrace("do",[]), + case Info#mod.method of + "GET" -> + case httpd_util:key1search(Info#mod.data,status) of + %% A status code has been generated! + {StatusCode,PhraseArgs,Reason} -> + {proceed,Info#mod.data}; + %% No status code has been generated! + undefined -> + case httpd_util:key1search(Info#mod.data, response) of + %% No response has been generated! + undefined -> + do_include(Info); + %% A response has been generated or sent! + Response -> + {proceed,Info#mod.data} + end + end; + %% Not a GET method! + _ -> + {proceed,Info#mod.data} + end. + +do_include(Info) -> + ?vtrace("do_include -> entry with" + "~n URI: ~p",[Info#mod.request_uri]), + Path = mod_alias:path(Info#mod.data,Info#mod.config_db, + Info#mod.request_uri), + Suffix = httpd_util:suffix(Path), + case httpd_util:lookup_mime_default(Info#mod.config_db,Suffix) of + "text/x-server-parsed-html" -> + HeaderStart = + httpd_util:header(200, "text/html", Info#mod.connection), + ?vtrace("do_include -> send ~p", [Path]), + case send_in(Info,Path,HeaderStart,file:read_file_info(Path)) of + {ok, ErrorLog, Size} -> + ?vtrace("do_include -> sent ~w bytes", [Size]), + {proceed,[{response,{already_sent,200,Size}}, + {mime_type,"text/html"}| + lists:append(ErrorLog,Info#mod.data)]}; + {error, Reason} -> + ?vlog("send in failed:" + "~n Reason: ~p" + "~n Path: ~p" + "~n Info: ~p", + [Reason,Info,Path]), + {proceed, + [{status,send_error(Reason,Info,Path)}|Info#mod.data]} + end; + _ -> %% Unknown mime type, ignore + {proceed,Info#mod.data} + end. + + +%% +%% config directive +%% + +config(Info, Context, ErrorLog, TagList, ValueList, R) -> + case verify_tags("config",[errmsg,timefmt,sizefmt], + TagList,ValueList) of + ok -> + {ok,update_context(TagList,ValueList,Context),ErrorLog,"",R}; + {error,Reason} -> + {ok,Context,[{internal_info,Reason}|ErrorLog], + httpd_util:key1search(Context,errmsg,""),R} + end. + +update_context([],[],Context) -> + Context; +update_context([Tag|R1],[Value|R2],Context) -> + update_context(R1,R2,[{Tag,Value}|Context]). + +verify_tags(Command,ValidTags,TagList,ValueList) when length(TagList)==length(ValueList) -> + verify_tags(Command,ValidTags,TagList); +verify_tags(Command,ValidTags,TagList,ValueList) -> + {error,?NICE(Command++" directive has spurious tags")}. + +verify_tags(Command, ValidTags, []) -> + ok; +verify_tags(Command, ValidTags, [Tag|Rest]) -> + case lists:member(Tag, ValidTags) of + true -> + verify_tags(Command, ValidTags, Rest); + false -> + {error,?NICE(Command++" directive has a spurious tag ("++ + atom_to_list(Tag)++")")} + end. + +%% +%% include directive +%% + +include(Info,Context,ErrorLog,[virtual],[VirtualPath],R) -> + Aliases = httpd_util:multi_lookup(Info#mod.config_db,alias), + {_, Path, _AfterPath} = + mod_alias:real_name(Info#mod.config_db, VirtualPath, Aliases), + include(Info,Context,ErrorLog,R,Path); +include(Info, Context, ErrorLog, [file], [FileName], R) -> + Path = file(Info#mod.config_db, Info#mod.request_uri, FileName), + include(Info, Context, ErrorLog, R, Path); +include(Info, Context, ErrorLog, TagList, ValueList, R) -> + {ok, Context, + [{internal_info,?NICE("include directive has a spurious tag")}| + ErrorLog], httpd_util:key1search(Context, errmsg, ""), R}. + +include(Info, Context, ErrorLog, R, Path) -> + ?DEBUG("include -> read file: ~p",[Path]), + case file:read_file(Path) of + {ok, Body} -> + ?DEBUG("include -> size(Body): ~p",[size(Body)]), + {ok, NewContext, NewErrorLog, Result} = + parse(Info, binary_to_list(Body), Context, ErrorLog, []), + {ok, Context, NewErrorLog, Result, R}; + {error, Reason} -> + {ok, Context, + [{internal_info, ?NICE("Can't open "++Path)}|ErrorLog], + httpd_util:key1search(Context, errmsg, ""), R} + end. + +file(ConfigDB, RequestURI, FileName) -> + Aliases = httpd_util:multi_lookup(ConfigDB, alias), + {_, Path, _AfterPath} + = mod_alias:real_name(ConfigDB, RequestURI, Aliases), + Pwd = filename:dirname(Path), + filename:join(Pwd, FileName). + +%% +%% echo directive +%% + +echo(Info,Context,ErrorLog,[var],["DOCUMENT_NAME"],R) -> + {ok,Context,ErrorLog,document_name(Info#mod.data,Info#mod.config_db, + Info#mod.request_uri),R}; +echo(Info,Context,ErrorLog,[var],["DOCUMENT_URI"],R) -> + {ok,Context,ErrorLog,document_uri(Info#mod.config_db, + Info#mod.request_uri),R}; +echo(Info,Context,ErrorLog,[var],["QUERY_STRING_UNESCAPED"],R) -> + {ok,Context,ErrorLog,query_string_unescaped(Info#mod.request_uri),R}; +echo(Info,Context,ErrorLog,[var],["DATE_LOCAL"],R) -> + {ok,Context,ErrorLog,date_local(),R}; +echo(Info,Context,ErrorLog,[var],["DATE_GMT"],R) -> + {ok,Context,ErrorLog,date_gmt(),R}; +echo(Info,Context,ErrorLog,[var],["LAST_MODIFIED"],R) -> + {ok,Context,ErrorLog,last_modified(Info#mod.data,Info#mod.config_db, + Info#mod.request_uri),R}; +echo(Info,Context,ErrorLog,TagList,ValueList,R) -> + {ok,Context, + [{internal_info,?NICE("echo directive has a spurious tag")}| + ErrorLog],"(none)",R}. + +document_name(Data,ConfigDB,RequestURI) -> + Path = mod_alias:path(Data,ConfigDB,RequestURI), + case regexp:match(Path,"[^/]*\$") of + {match,Start,Length} -> + string:substr(Path,Start,Length); + nomatch -> + "(none)" + end. + +document_uri(ConfigDB, RequestURI) -> + Aliases = httpd_util:multi_lookup(ConfigDB, alias), + {Path, AfterPath} = + case mod_alias:real_name(ConfigDB, RequestURI, Aliases) of + {_, Name, {[], []}} -> + {Name, ""}; + {_, Name, {PathInfo, []}} -> + {Name, "/"++PathInfo}; + {_, Name, {PathInfo, QueryString}} -> + {Name, "/"++PathInfo++"?"++QueryString}; + {_, Name, _} -> + {Name, ""}; + Gurka -> + io:format("Gurka: ~p~n", [Gurka]) + end, + VirtualPath = string:substr(RequestURI, 1, + length(RequestURI)-length(AfterPath)), + {match, Start, Length} = regexp:match(Path,"[^/]*\$"), + FileName = string:substr(Path,Start,Length), + case regexp:match(VirtualPath, FileName++"\$") of + {match, _, _} -> + httpd_util:decode_hex(VirtualPath)++AfterPath; + nomatch -> + string:strip(httpd_util:decode_hex(VirtualPath),right,$/)++ + "/"++FileName++AfterPath + end. + +query_string_unescaped(RequestURI) -> + case regexp:match(RequestURI,"[\?].*\$") of + {match,Start,Length} -> + %% Escape all shell-special variables with \ + escape(string:substr(RequestURI,Start+1,Length-1)); + nomatch -> + "(none)" + end. + +escape([]) -> []; +escape([$;|R]) -> [$\\,$;|escape(R)]; +escape([$&|R]) -> [$\\,$&|escape(R)]; +escape([$(|R]) -> [$\\,$(|escape(R)]; +escape([$)|R]) -> [$\\,$)|escape(R)]; +escape([$||R]) -> [$\\,$||escape(R)]; +escape([$^|R]) -> [$\\,$^|escape(R)]; +escape([$<|R]) -> [$\\,$<|escape(R)]; +escape([$>|R]) -> [$\\,$>|escape(R)]; +escape([$\n|R]) -> [$\\,$\n|escape(R)]; +escape([$ |R]) -> [$\\,$ |escape(R)]; +escape([$\t|R]) -> [$\\,$\t|escape(R)]; +escape([C|R]) -> [C|escape(R)]. + +date_local() -> + {{Year,Month,Day},{Hour,Minute,Second}}=calendar:local_time(), + %% Time format hard-wired to: "%a %b %e %T %Y" according to strftime(3) + io_lib:format("~s ~s ~2w ~2.2.0w:~2.2.0w:~2.2.0w ~w", + [httpd_util:day(calendar:day_of_the_week(Year,Month,Day)), + httpd_util:month(Month),Day,Hour,Minute,Second,Year]). + +date_gmt() -> + {{Year,Month,Day},{Hour,Minute,Second}}=calendar:universal_time(), + %% Time format hard-wired to: "%a %b %e %T %Z %Y" according to strftime(3) + io_lib:format("~s ~s ~2w ~2.2.0w:~2.2.0w:~2.2.0w GMT ~w", + [httpd_util:day(calendar:day_of_the_week(Year,Month,Day)), + httpd_util:month(Month),Day,Hour,Minute,Second,Year]). + +last_modified(Data,ConfigDB,RequestURI) -> + {ok,FileInfo}=file:read_file_info(mod_alias:path(Data,ConfigDB,RequestURI)), + {{Year,Month,Day},{Hour,Minute,Second}}=FileInfo#file_info.mtime, + io_lib:format("~s ~s ~2w ~2.2.0w:~2.2.0w:~2.2.0w ~w", + [httpd_util:day(calendar:day_of_the_week(Year,Month,Day)), + httpd_util:month(Month),Day,Hour,Minute,Second,Year]). + +%% +%% fsize directive +%% + +fsize(Info,Context,ErrorLog,[virtual],[VirtualPath],R) -> + Aliases=httpd_util:multi_lookup(Info#mod.config_db,alias), + {_,Path,AfterPath}= + mod_alias:real_name(Info#mod.config_db,VirtualPath,Aliases), + fsize(Info, Context, ErrorLog, R, Path); +fsize(Info,Context,ErrorLog,[file],[FileName],R) -> + Path=file(Info#mod.config_db,Info#mod.request_uri,FileName), + fsize(Info,Context,ErrorLog,R,Path); +fsize(Info,Context,ErrorLog,TagList,ValueList,R) -> + {ok,Context,[{internal_info,?NICE("fsize directive has a spurious tag")}| + ErrorLog],httpd_util:key1search(Context,errmsg,""),R}. + +fsize(Info,Context,ErrorLog,R,Path) -> + case file:read_file_info(Path) of + {ok,FileInfo} -> + case httpd_util:key1search(Context,sizefmt) of + "bytes" -> + {ok,Context,ErrorLog, + integer_to_list(FileInfo#file_info.size),R}; + "abbrev" -> + Size = integer_to_list(trunc(FileInfo#file_info.size/1024+1))++"k", + {ok,Context,ErrorLog,Size,R}; + Value-> + {ok,Context, + [{internal_info, + ?NICE("fsize directive has a spurious tag value ("++ + Value++")")}| + ErrorLog], + httpd_util:key1search(Context, errmsg, ""), R} + end; + {error,Reason} -> + {ok,Context,[{internal_info,?NICE("Can't open "++Path)}|ErrorLog], + httpd_util:key1search(Context,errmsg,""),R} + end. + +%% +%% flastmod directive +%% + +flastmod(Info, Context, ErrorLog, [virtual], [VirtualPath],R) -> + Aliases=httpd_util:multi_lookup(Info#mod.config_db,alias), + {_,Path,AfterPath}= + mod_alias:real_name(Info#mod.config_db,VirtualPath,Aliases), + flastmod(Info,Context,ErrorLog,R,Path); +flastmod(Info, Context, ErrorLog, [file], [FileName], R) -> + Path = file(Info#mod.config_db, Info#mod.request_uri, FileName), + flastmod(Info, Context, ErrorLog, R, Path); +flastmod(Info,Context,ErrorLog,TagList,ValueList,R) -> + {ok,Context,[{internal_info,?NICE("flastmod directive has a spurious tag")}| + ErrorLog],httpd_util:key1search(Context,errmsg,""),R}. + +flastmod(Info,Context,ErrorLog,R,File) -> + case file:read_file_info(File) of + {ok,FileInfo} -> + {{Yr,Mon,Day},{Hour,Minute,Second}}=FileInfo#file_info.mtime, + Result= + io_lib:format("~s ~s ~2w ~w:~w:~w ~w", + [httpd_util:day( + calendar:day_of_the_week(Yr,Mon, Day)), + httpd_util:month(Mon),Day,Hour,Minute,Second, Yr]), + {ok,Context,ErrorLog,Result,R}; + {error,Reason} -> + {ok,Context,[{internal_info,?NICE("Can't open "++File)}|ErrorLog], + httpd_util:key1search(Context,errmsg,""),R} + end. + +%% +%% exec directive +%% + +exec(Info,Context,ErrorLog,[cmd],[Command],R) -> + ?vtrace("exec cmd:~n Command: ~p",[Command]), + cmd(Info,Context,ErrorLog,R,Command); +exec(Info,Context,ErrorLog,[cgi],[RequestURI],R) -> + ?vtrace("exec cgi:~n RequestURI: ~p",[RequestURI]), + cgi(Info,Context,ErrorLog,R,RequestURI); +exec(Info,Context,ErrorLog,TagList,ValueList,R) -> + ?vtrace("exec with spurious tag:" + "~n TagList: ~p" + "~n ValueList: ~p", + [TagList,ValueList]), + {ok, Context, + [{internal_info,?NICE("exec directive has a spurious tag")}| + ErrorLog], httpd_util:key1search(Context,errmsg,""),R}. + +%% cmd + +cmd(Info, Context, ErrorLog, R, Command) -> + process_flag(trap_exit,true), + Env = env(Info), + Dir = filename:dirname(Command), + Port = (catch open_port({spawn,Command},[stream,{cd,Dir},{env,Env}])), + case Port of + P when port(P) -> + {NewErrorLog, Result} = proxy(Port, ErrorLog), + {ok, Context, NewErrorLog, Result, R}; + {'EXIT', Reason} -> + ?vlog("open port failed: exit" + "~n URI: ~p" + "~n Reason: ~p", + [Info#mod.request_uri,Reason]), + exit({open_port_failed,Reason, + [{uri,Info#mod.request_uri},{script,Command}, + {env,Env},{dir,Dir}]}); + O -> + ?vlog("open port failed: unknown result" + "~n URI: ~p" + "~n O: ~p", + [Info#mod.request_uri,O]), + exit({open_port_failed,O, + [{uri,Info#mod.request_uri},{script,Command}, + {env,Env},{dir,Dir}]}) + end. + +env(Info) -> + [{"DOCUMENT_NAME",document_name(Info#mod.data,Info#mod.config_db, + Info#mod.request_uri)}, + {"DOCUMENT_URI", document_uri(Info#mod.config_db, Info#mod.request_uri)}, + {"QUERY_STRING_UNESCAPED", query_string_unescaped(Info#mod.request_uri)}, + {"DATE_LOCAL", date_local()}, + {"DATE_GMT", date_gmt()}, + {"LAST_MODIFIED", last_modified(Info#mod.data, Info#mod.config_db, + Info#mod.request_uri)} + ]. + +%% cgi + +cgi(Info, Context, ErrorLog, R, RequestURI) -> + ScriptAliases = httpd_util:multi_lookup(Info#mod.config_db, script_alias), + case mod_alias:real_script_name(Info#mod.config_db, RequestURI, + ScriptAliases) of + {Script, AfterScript} -> + exec_script(Info,Script,AfterScript,ErrorLog,Context,R); + not_a_script -> + {ok, Context, + [{internal_info, ?NICE(RequestURI++" is not a script")}| + ErrorLog], httpd_util:key1search(Context, errmsg, ""),R} + end. + +remove_header([]) -> + []; +remove_header([$\n,$\n|Rest]) -> + Rest; +remove_header([C|Rest]) -> + remove_header(Rest). + + +exec_script(Info,Script,AfterScript,ErrorLog,Context,R) -> + process_flag(trap_exit,true), + Aliases = httpd_util:multi_lookup(Info#mod.config_db, alias), + {_, Path, AfterPath} = mod_alias:real_name(Info#mod.config_db, + Info#mod.request_uri, + Aliases), + Env = env(Info)++mod_cgi:env(Info, Path, AfterPath), + Dir = filename:dirname(Path), + Port = (catch open_port({spawn,Script},[stream,{env, Env},{cd, Dir}])), + case Port of + P when port(P) -> + %% Send entity body to port. + Res = case Info#mod.entity_body of + [] -> + true; + EntityBody -> + (catch port_command(Port,EntityBody)) + end, + case Res of + {'EXIT', Reason} -> + ?vlog("port send failed:" + "~n Port: ~p" + "~n URI: ~p" + "~n Reason: ~p", + [Port,Info#mod.request_uri,Reason]), + exit({open_cmd_failed,Reason, + [{mod,?MODULE},{port,Port}, + {uri,Info#mod.request_uri}, + {script,Script},{env,Env},{dir,Dir}, + {ebody_size,sz(Info#mod.entity_body)}]}); + true -> + {NewErrorLog, Result} = proxy(Port, ErrorLog), + {ok, Context, NewErrorLog, remove_header(Result), R} + end; + {'EXIT', Reason} -> + ?vlog("open port failed: exit" + "~n URI: ~p" + "~n Reason: ~p", + [Info#mod.request_uri,Reason]), + exit({open_port_failed,Reason, + [{mod,?MODULE},{uri,Info#mod.request_uri},{script,Script}, + {env,Env},{dir,Dir}]}); + O -> + ?vlog("open port failed: unknown result" + "~n URI: ~p" + "~n O: ~p", + [Info#mod.request_uri,O]), + exit({open_port_failed,O, + [{mod,?MODULE},{uri,Info#mod.request_uri},{script,Script}, + {env,Env},{dir,Dir}]}) + end. + + +%% +%% Port communication +%% + +proxy(Port,ErrorLog) -> + process_flag(trap_exit, true), + proxy(Port, ErrorLog, []). + +proxy(Port, ErrorLog, Result) -> + receive + {Port, {data, Response}} -> + proxy(Port, ErrorLog, lists:append(Result,Response)); + {'EXIT', Port, normal} when port(Port) -> + process_flag(trap_exit, false), + {ErrorLog, Result}; + {'EXIT', Port, Reason} when port(Port) -> + process_flag(trap_exit, false), + {[{internal_info, + ?NICE("Scrambled output from CGI-script")}|ErrorLog], + Result}; + {'EXIT', Pid, Reason} when pid(Pid) -> + process_flag(trap_exit, false), + {'EXIT', Pid, Reason}; + %% This should not happen! + WhatEver -> + process_flag(trap_exit, false), + {ErrorLog, Result} + end. + + +%% ------ +%% Temporary until I figure out a way to fix send_in_chunks +%% (comments and directives that start in one chunk but end +%% in another is not handled). +%% + +send_in(Info, Path,Head, {ok,FileInfo}) -> + case file:read_file(Path) of + {ok, Bin} -> + send_in1(Info, binary_to_list(Bin), Head, FileInfo); + {error, Reason} -> + ?vlog("failed reading file: ~p",[Reason]), + {error, {open,Reason}} + end; +send_in(Info,Path,Head,{error,Reason}) -> + ?vlog("failed open file: ~p",[Reason]), + {error, {open,Reason}}. + +send_in1(Info, Data,Head,FileInfo) -> + {ok, _Context, Err, ParsedBody} = parse(Info,Data,?DEFAULT_CONTEXT,[],[]), + Size = length(ParsedBody), + ?vdebug("send_in1 -> Size: ~p",[Size]), + Head1 = case Info#mod.http_version of + "HTTP/1.1"-> + Head ++ + "Content-Length: " ++ + integer_to_list(Size) ++ + "\r\nEtag:" ++ + httpd_util:create_etag(FileInfo,Size) ++"\r\n" ++ + "Last-Modified: " ++ + httpd_util:rfc1123_date(FileInfo#file_info.mtime) ++ + "\r\n\r\n"; + _-> + %% i.e http/1.0 and http/0.9 + Head ++ + "Content-Length: " ++ + integer_to_list(Size) ++ + "\r\nLast-Modified: " ++ + httpd_util:rfc1123_date(FileInfo#file_info.mtime) ++ + "\r\n\r\n" + end, + httpd_socket:deliver(Info#mod.socket_type,Info#mod.socket, + [Head1,ParsedBody]), + {ok, Err, Size}. + + + +%% +%% Addition to "Fuzzy" HTML parser. This is actually a ugly hack to +%% avoid putting to much data on the heap. To be rewritten... +%% + +% -define(CHUNK_SIZE, 4096). + +% send_in_chunks(Info, Path) -> +% ?DEBUG("send_in_chunks -> Path: ~p",[Path]), +% case file:open(Path, [read, raw]) of +% {ok, Stream} -> +% send_in_chunks(Info, Stream, ?DEFAULT_CONTEXT,[]); +% {error, Reason} -> +% ?ERROR("Failed open file: ~p",[Reason]), +% {error, {open,Reason}} +% end. + +% send_in_chunks(Info, Stream, Context, ErrorLog) -> +% case file:read(Stream, ?CHUNK_SIZE) of +% {ok, Data} -> +% ?DEBUG("send_in_chunks -> read ~p bytes",[length(Data)]), +% {ok, NewContext, NewErrorLog, ParsedBody}= +% parse(Info, Data, Context, ErrorLog, []), +% httpd_socket:deliver(Info#mod.socket_type, +% Info#mod.socket, ParsedBody), +% send_in_chunks(Info,Stream,NewContext,NewErrorLog); +% eof -> +% {ok, ErrorLog}; +% {error, Reason} -> +% ?ERROR("Failed read from file: ~p",[Reason]), +% {error, {read,Reason}} +% end. + + +%% +%% "Fuzzy" HTML parser +%% + +parse(Info,Body) -> + parse(Info, Body, ?DEFAULT_CONTEXT, [], []). + +parse(Info, [], Context, ErrorLog, Result) -> + {ok, Context, lists:reverse(ErrorLog), lists:reverse(Result)}; +parse(Info,[$<,$!,$-,$-,$#|R1],Context,ErrorLog,Result) -> + ?DEBUG("parse -> start command directive when length(R1): ~p",[length(R1)]), + case catch parse0(R1,Context) of + {parse_error,Reason} -> + parse(Info,R1,Context,[{internal_info,?NICE(Reason)}|ErrorLog], + [$#,$-,$-,$!,$<|Result]); + {ok,Context,Command,TagList,ValueList,R2} -> + ?DEBUG("parse -> Command: ~p",[Command]), + {ok,NewContext,NewErrorLog,MoreResult,R3}= + handle(Info,Context,ErrorLog,Command,TagList,ValueList,R2), + parse(Info,R3,NewContext,NewErrorLog,lists:reverse(MoreResult)++Result) + end; +parse(Info,[$<,$!,$-,$-|R1],Context,ErrorLog,Result) -> + ?DEBUG("parse -> start comment when length(R1) = ~p",[length(R1)]), + case catch parse5(R1,[],0) of + {parse_error,Reason} -> + ?ERROR("parse -> parse error: ~p",[Reason]), + parse(Info,R1,Context,[{internal_info,?NICE(Reason)}|ErrorLog],Result); + {Comment,R2} -> + ?DEBUG("parse -> length(Comment) = ~p, length(R2) = ~p", + [length(Comment),length(R2)]), + parse(Info,R2,Context,ErrorLog,Comment++Result) + end; +parse(Info,[C|R],Context,ErrorLog,Result) -> + parse(Info,R,Context,ErrorLog,[C|Result]). + +handle(Info,Context,ErrorLog,Command,TagList,ValueList,R) -> + case catch apply(?MODULE,Command,[Info,Context,ErrorLog,TagList,ValueList, + R]) of + {'EXIT',{undef,_}} -> + throw({parse_error,"Unknown command "++atom_to_list(Command)++ + " in parsed doc"}); + Result -> + Result + end. + +parse0([],Context) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse0([$-,$-,$>|R],Context) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse0([$ |R],Context) -> + parse0(R,Context); +parse0(String,Context) -> + parse1(String,Context,""). + +parse1([],Context,Command) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse1([$-,$-,$>|R],Context,Command) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse1([$ |R],Context,Command) -> + parse2(R,Context,list_to_atom(lists:reverse(Command)),[],[],""); +parse1([C|R],Context,Command) -> + parse1(R,Context,[C|Command]). + +parse2([],Context,Command,TagList,ValueList,Tag) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse2([$-,$-,$>|R],Context,Command,TagList,ValueList,Tag) -> + {ok,Context,Command,TagList,ValueList,R}; +parse2([$ |R],Context,Command,TagList,ValueList,Tag) -> + parse2(R,Context,Command,TagList,ValueList,Tag); +parse2([$=|R],Context,Command,TagList,ValueList,Tag) -> + parse3(R,Context,Command,[list_to_atom(lists:reverse(Tag))|TagList], + ValueList); +parse2([C|R],Context,Command,TagList,ValueList,Tag) -> + parse2(R,Context,Command,TagList,ValueList,[C|Tag]). + +parse3([],Context,Command,TagList,ValueList) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse3([$-,$-,$>|R],Context,Command,TagList,ValueList) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse3([$ |R],Context,Command,TagList,ValueList) -> + parse3(R,Context,Command,TagList,ValueList); +parse3([$"|R],Context,Command,TagList,ValueList) -> + parse4(R,Context,Command,TagList,ValueList,""); +parse3(String,Context,Command,TagList,ValueList) -> + throw({parse_error,"Premature EOF in parsed file"}). + +parse4([],Context,Command,TagList,ValueList,Value) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse4([$-,$-,$>|R],Context,Command,TagList,ValueList,Value) -> + throw({parse_error,"Premature EOF in parsed file"}); +parse4([$"|R],Context,Command,TagList,ValueList,Value) -> + parse2(R,Context,Command,TagList,[lists:reverse(Value)|ValueList],""); +parse4([C|R],Context,Command,TagList,ValueList,Value) -> + parse4(R,Context,Command,TagList,ValueList,[C|Value]). + +parse5([],Comment,Depth) -> + ?ERROR("parse5 -> unterminated comment of ~p bytes when Depth = ~p", + [length(Comment),Depth]), + throw({parse_error,"Premature EOF in parsed file"}); +parse5([$<,$!,$-,$-|R],Comment,Depth) -> + parse5(R,[$-,$-,$!,$<|Comment],Depth+1); +parse5([$-,$-,$>|R],Comment,0) -> + {">--"++Comment++"--!<",R}; +parse5([$-,$-,$>|R],Comment,Depth) -> + parse5(R,[$>,$-,$-|Comment],Depth-1); +parse5([C|R],Comment,Depth) -> + parse5(R,[C|Comment],Depth). + + +sz(B) when binary(B) -> {binary,size(B)}; +sz(L) when list(L) -> {list,length(L)}; +sz(_) -> undefined. + + +%% send_error - Handle failure to send the file +%% +send_error({open,Reason},Info,Path) -> open_error(Reason,Info,Path); +send_error({read,Reason},Info,Path) -> read_error(Reason,Info,Path). + + +%% open_error - Handle file open failure +%% +open_error(eacces,Info,Path) -> + open_error(403,Info,Path,""); +open_error(enoent,Info,Path) -> + open_error(404,Info,Path,""); +open_error(enotdir,Info,Path) -> + open_error(404,Info,Path, + ": A component of the file name is not a directory"); +open_error(emfile,_Info,Path) -> + open_error(500,none,Path,": To many open files"); +open_error({enfile,_},_Info,Path) -> + open_error(500,none,Path,": File table overflow"); +open_error(_Reason,_Info,Path) -> + open_error(500,none,Path,""). + +open_error(StatusCode,none,Path,Reason) -> + {StatusCode,none,?NICE("Can't open "++Path++Reason)}; +open_error(StatusCode,Info,Path,Reason) -> + {StatusCode,Info#mod.request_uri,?NICE("Can't open "++Path++Reason)}. + +read_error(_Reason,_Info,Path) -> + read_error(500,none,Path,""). + +read_error(StatusCode,none,Path,Reason) -> + {StatusCode,none,?NICE("Can't read "++Path++Reason)}; +read_error(StatusCode,Info,Path,Reason) -> + {StatusCode,Info#mod.request_uri,?NICE("Can't read "++Path++Reason)}. + + + + |