diff options
Diffstat (limited to 'lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/httpd_util.erl')
| -rw-r--r-- | lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/httpd_util.erl | 777 |
1 files changed, 777 insertions, 0 deletions
diff --git a/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/httpd_util.erl b/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/httpd_util.erl new file mode 100644 index 0000000000..05064a8d38 --- /dev/null +++ b/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/httpd_util.erl @@ -0,0 +1,777 @@ +%% ``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: httpd_util.erl,v 1.1 2008/12/17 09:53:34 mikpe Exp $ +%% +-module(httpd_util). +-export([key1search/2, key1search/3, lookup/2, lookup/3, multi_lookup/2, + lookup_mime/2, lookup_mime/3, lookup_mime_default/2, + lookup_mime_default/3, reason_phrase/1, message/3, rfc1123_date/0, + rfc1123_date/1, day/1, month/1, decode_hex/1, decode_base64/1, encode_base64/1, + flatlength/1, split_path/1, split_script_path/1, suffix/1, to_upper/1, + to_lower/1, split/3, header/2, header/3, header/4, uniq/1, + make_name/2,make_name/3,make_name/4,strip/1, + hexlist_to_integer/1,integer_to_hexlist/1, + convert_request_date/1,create_etag/1,create_etag/2,getSize/1, + response_generated/1]). + +%%Since hexlist_to_integer is a lousy name make a name convert +-export([encode_hex/1]). +-include("httpd.hrl"). + +%% key1search + +key1search(TupleList,Key) -> + key1search(TupleList,Key,undefined). + +key1search(TupleList,Key,Undefined) -> + case lists:keysearch(Key,1,TupleList) of + {value,{Key,Value}} -> + Value; + false -> + Undefined + end. + +%% lookup + +lookup(Table,Key) -> + lookup(Table,Key,undefined). + +lookup(Table,Key,Undefined) -> + case catch ets:lookup(Table,Key) of + [{Key,Value}|_] -> + Value; + _-> + Undefined + end. + +%% multi_lookup + +multi_lookup(Table,Key) -> + remove_key(ets:lookup(Table,Key)). + +remove_key([]) -> + []; +remove_key([{_Key,Value}|Rest]) -> + [Value|remove_key(Rest)]. + +%% lookup_mime + +lookup_mime(ConfigDB,Suffix) -> + lookup_mime(ConfigDB,Suffix,undefined). + +lookup_mime(ConfigDB,Suffix,Undefined) -> + [{mime_types,MimeTypesDB}|_]=ets:lookup(ConfigDB,mime_types), + case ets:lookup(MimeTypesDB,Suffix) of + [] -> + Undefined; + [{Suffix,MimeType}|_] -> + MimeType + end. + +%% lookup_mime_default + +lookup_mime_default(ConfigDB,Suffix) -> + lookup_mime_default(ConfigDB,Suffix,undefined). + +lookup_mime_default(ConfigDB,Suffix,Undefined) -> + [{mime_types,MimeTypesDB}|_]=ets:lookup(ConfigDB,mime_types), + case ets:lookup(MimeTypesDB,Suffix) of + [] -> + case ets:lookup(ConfigDB,default_type) of + [] -> + Undefined; + [{default_type,DefaultType}|_] -> + DefaultType + end; + [{Suffix,MimeType}|_] -> + MimeType + end. + +%% reason_phrase +reason_phrase(100) -> "Continue"; +reason_phrase(101) -> "Swithing protocol"; +reason_phrase(200) -> "OK"; +reason_phrase(201) -> "Created"; +reason_phrase(202) -> "Accepted"; +reason_phrase(204) -> "No Content"; +reason_phrase(205) -> "Reset Content"; +reason_phrase(206) -> "Partial Content"; +reason_phrase(301) -> "Moved Permanently"; +reason_phrase(302) -> "Moved Temporarily"; +reason_phrase(304) -> "Not Modified"; +reason_phrase(400) -> "Bad Request"; +reason_phrase(401) -> "Unauthorized"; +reason_phrase(402) -> "Payment Required"; +reason_phrase(403) -> "Forbidden"; +reason_phrase(404) -> "Not Found"; +reason_phrase(405) -> "Method Not Allowed"; +reason_phrase(408) -> "Request Timeout"; +reason_phrase(411) -> "Length Required"; +reason_phrase(414) -> "Request-URI Too Long"; +reason_phrase(412) -> "Precondition Failed"; +reason_phrase(416) -> "request Range Not Satisfiable"; +reason_phrase(417) -> "Expectation failed"; +reason_phrase(500) -> "Internal Server Error"; +reason_phrase(501) -> "Not Implemented"; +reason_phrase(502) -> "Bad Gateway"; +reason_phrase(503) -> "Service Unavailable"; +reason_phrase(_) -> "Internal Server Error". + +%% message + +message(301,URL,_) -> + "The document has moved <A HREF=\""++URL++"\">here</A>."; +message(304,_URL,_) -> + "The document has not been changed."; +message(400,none,_) -> + "Your browser sent a query that this server could not understand."; +message(401,none,_) -> + "This server could not verify that you +are authorized to access the document you +requested. Either you supplied the wrong +credentials (e.g., bad password), or your +browser does not understand how to supply +the credentials required."; +message(403,RequestURI,_) -> + "You do not have permission to access "++RequestURI++" on this server."; +message(404,RequestURI,_) -> + "The requested URL "++RequestURI++" was not found on this server."; +message(412,none,_) -> + "The requested preconditions where false"; +message(414,ReasonPhrase,_) -> + "Message "++ReasonPhrase++"."; +message(416,ReasonPhrase,_) -> + ReasonPhrase; + +message(500,none,ConfigDB) -> + ServerAdmin=lookup(ConfigDB,server_admin,"unknown@unknown"), + "The server encountered an internal error or +misconfiguration and was unable to complete +your request. +<P>Please contact the server administrator "++ServerAdmin++", +and inform them of the time the error occurred +and anything you might have done that may have +caused the error."; +message(501,{Method,RequestURI,HTTPVersion},_ConfigDB) -> + Method++" to "++RequestURI++" ("++HTTPVersion++") not supported."; +message(503,String,_ConfigDB) -> + "This service in unavailable due to: "++String. + +%%convert_rfc_date(Date)->{{YYYY,MM,DD},{HH,MIN,SEC}} + +convert_request_date([D,A,Y,DateType|Rest]) -> + Func=case DateType of + $\, -> + fun convert_rfc1123_date/1; + $\ -> + fun convert_ascii_date/1; + _ -> + fun convert_rfc850_date/1 + end, + case catch Func([D,A,Y,DateType|Rest])of + {ok,Date} -> + Date; + _Error -> + bad_date + end. + +convert_rfc850_date(DateStr) -> + case string:tokens(DateStr," ") of + [_WeekDay,Date,Time,_TimeZone|_Rest] -> + convert_rfc850_date(Date,Time); + _Error -> + bad_date + end. + +convert_rfc850_date([D1,D2,_,M,O,N,_,Y1,Y2|_Rest],[H1,H2,_Col,M1,M2,_Col,S1,S2|_Rest2])-> + Year=list_to_integer([50,48,Y1,Y2]), + Day=list_to_integer([D1,D2]), + Month=convert_month([M,O,N]), + Hour=list_to_integer([H1,H2]), + Min=list_to_integer([M1,M2]), + Sec=list_to_integer([S1,S2]), + {ok,{{Year,Month,Day},{Hour,Min,Sec}}}; +convert_rfc850_date(_BadDate,_BadTime)-> + bad_date. + +convert_ascii_date([_D,_A,_Y,_SP,M,O,N,_SP,D1,D2,_SP,H1,H2,_Col,M1,M2,_Col,S1,S2,_SP,Y1,Y2,Y3,Y4|_Rest])-> + Year=list_to_integer([Y1,Y2,Y3,Y4]), + Day=case D1 of + $\ -> + list_to_integer([D2]); + _-> + list_to_integer([D1,D2]) + end, + Month=convert_month([M,O,N]), + Hour=list_to_integer([H1,H2]), + Min=list_to_integer([M1,M2]), + Sec=list_to_integer([S1,S2]), + {ok,{{Year,Month,Day},{Hour,Min,Sec}}}; +convert_ascii_date(BadDate)-> + bad_date. +convert_rfc1123_date([_D,_A,_Y,_C,_SP,D1,D2,_SP,M,O,N,_SP,Y1,Y2,Y3,Y4,_SP,H1,H2,_Col,M1,M2,_Col,S1,S2|Rest])-> + Year=list_to_integer([Y1,Y2,Y3,Y4]), + Day=list_to_integer([D1,D2]), + Month=convert_month([M,O,N]), + Hour=list_to_integer([H1,H2]), + Min=list_to_integer([M1,M2]), + Sec=list_to_integer([S1,S2]), + {ok,{{Year,Month,Day},{Hour,Min,Sec}}}; +convert_rfc1123_date(BadDate)-> + bad_date. + +convert_month("Jan")->1; +convert_month("Feb") ->2; +convert_month("Mar") ->3; +convert_month("Apr") ->4; +convert_month("May") ->5; +convert_month("Jun") ->6; +convert_month("Jul") ->7; +convert_month("Aug") ->8; +convert_month("Sep") ->9; +convert_month("Oct") ->10; +convert_month("Nov") ->11; +convert_month("Dec") ->12. + + +%% rfc1123_date + +rfc1123_date() -> + {{YYYY,MM,DD},{Hour,Min,Sec}}=calendar:universal_time(), + DayNumber=calendar:day_of_the_week({YYYY,MM,DD}), + lists:flatten(io_lib:format("~s, ~2.2.0w ~3.s ~4.4.0w ~2.2.0w:~2.2.0w:~2.2.0w GMT", + [day(DayNumber),DD,month(MM),YYYY,Hour,Min,Sec])). + +rfc1123_date({{YYYY,MM,DD},{Hour,Min,Sec}}) -> + DayNumber=calendar:day_of_the_week({YYYY,MM,DD}), + lists:flatten(io_lib:format("~s, ~2.2.0w ~3.s ~4.4.0w ~2.2.0w:~2.2.0w:~2.2.0w GMT", + [day(DayNumber),DD,month(MM),YYYY,Hour,Min,Sec])). + +%% uniq + +uniq([]) -> + []; +uniq([First,First|Rest]) -> + uniq([First|Rest]); +uniq([First|Rest]) -> + [First|uniq(Rest)]. + + +%% day + +day(1) -> "Mon"; +day(2) -> "Tue"; +day(3) -> "Wed"; +day(4) -> "Thu"; +day(5) -> "Fri"; +day(6) -> "Sat"; +day(7) -> "Sun". + +%% month + +month(1) -> "Jan"; +month(2) -> "Feb"; +month(3) -> "Mar"; +month(4) -> "Apr"; +month(5) -> "May"; +month(6) -> "Jun"; +month(7) -> "Jul"; +month(8) -> "Aug"; +month(9) -> "Sep"; +month(10) -> "Oct"; +month(11) -> "Nov"; +month(12) -> "Dec". + +%% decode_hex + +decode_hex([$%,Hex1,Hex2|Rest]) -> + [hex2dec(Hex1)*16+hex2dec(Hex2)|decode_hex(Rest)]; +decode_hex([First|Rest]) -> + [First|decode_hex(Rest)]; +decode_hex([]) -> + []. + +hex2dec(X) when X>=$0,X=<$9 -> X-$0; +hex2dec(X) when X>=$A,X=<$F -> X-$A+10; +hex2dec(X) when X>=$a,X=<$f -> X-$a+10. + +%% decode_base64 (DEBUG STRING: QWxhZGRpbjpvcGVuIHNlc2FtZQ==) + +decode_base64([]) -> + []; +decode_base64([Sextet1,Sextet2,$=,$=|Rest]) -> + Bits2x6= + (d(Sextet1) bsl 18) bor + (d(Sextet2) bsl 12), + Octet1=Bits2x6 bsr 16, + [Octet1|decode_base64(Rest)]; +decode_base64([Sextet1,Sextet2,Sextet3,$=|Rest]) -> + Bits3x6= + (d(Sextet1) bsl 18) bor + (d(Sextet2) bsl 12) bor + (d(Sextet3) bsl 6), + Octet1=Bits3x6 bsr 16, + Octet2=(Bits3x6 bsr 8) band 16#ff, + [Octet1,Octet2|decode_base64(Rest)]; +decode_base64([Sextet1,Sextet2,Sextet3,Sextet4|Rest]) -> + Bits4x6= + (d(Sextet1) bsl 18) bor + (d(Sextet2) bsl 12) bor + (d(Sextet3) bsl 6) bor + d(Sextet4), + Octet1=Bits4x6 bsr 16, + Octet2=(Bits4x6 bsr 8) band 16#ff, + Octet3=Bits4x6 band 16#ff, + [Octet1,Octet2,Octet3|decode_base64(Rest)]; +decode_base64(CatchAll) -> + "BAD!". + +d(X) when X >= $A, X =<$Z -> + X-65; +d(X) when X >= $a, X =<$z -> + X-71; +d(X) when X >= $0, X =<$9 -> + X+4; +d($+) -> 62; +d($/) -> 63; +d(_) -> 63. + + +encode_base64([]) -> + []; +encode_base64([A]) -> + [e(A bsr 2), e((A band 3) bsl 4), $=, $=]; +encode_base64([A,B]) -> + [e(A bsr 2), e(((A band 3) bsl 4) bor (B bsr 4)), e((B band 15) bsl 2), $=]; +encode_base64([A,B,C|Ls]) -> + encode_base64_do(A,B,C, Ls). +encode_base64_do(A,B,C, Rest) -> + BB = (A bsl 16) bor (B bsl 8) bor C, + [e(BB bsr 18), e((BB bsr 12) band 63), + e((BB bsr 6) band 63), e(BB band 63)|encode_base64(Rest)]. + +e(X) when X >= 0, X < 26 -> X+65; +e(X) when X>25, X<52 -> X+71; +e(X) when X>51, X<62 -> X-4; +e(62) -> $+; +e(63) -> $/; +e(X) -> exit({bad_encode_base64_token, X}). + + +%% flatlength + +flatlength(List) -> + flatlength(List, 0). + +flatlength([H|T],L) when list(H) -> + flatlength(H,flatlength(T,L)); +flatlength([H|T],L) when binary(H) -> + flatlength(T,L+size(H)); +flatlength([H|T],L) -> + flatlength(T,L+1); +flatlength([],L) -> + L. + +%% split_path + +split_path(Path) -> + case regexp:match(Path,"[\?].*\$") of + %% A QUERY_STRING exists! + {match,Start,Length} -> + {httpd_util:decode_hex(string:substr(Path,1,Start-1)), + string:substr(Path,Start,Length)}; + %% A possible PATH_INFO exists! + nomatch -> + split_path(Path,[]) + end. + +split_path([],SoFar) -> + {httpd_util:decode_hex(lists:reverse(SoFar)),[]}; +split_path([$/|Rest],SoFar) -> + Path=httpd_util:decode_hex(lists:reverse(SoFar)), + case file:read_file_info(Path) of + {ok,FileInfo} when FileInfo#file_info.type == regular -> + {Path,[$/|Rest]}; + {ok,FileInfo} -> + split_path(Rest,[$/|SoFar]); + {error,Reason} -> + split_path(Rest,[$/|SoFar]) + end; +split_path([C|Rest],SoFar) -> + split_path(Rest,[C|SoFar]). + +%% split_script_path + +split_script_path(Path) -> + case split_script_path(Path, []) of + {Script, AfterPath} -> + {PathInfo, QueryString} = pathinfo_querystring(AfterPath), + {Script, {PathInfo, QueryString}}; + not_a_script -> + not_a_script + end. + +pathinfo_querystring(Str) -> + pathinfo_querystring(Str, []). +pathinfo_querystring([], SoFar) -> + {lists:reverse(SoFar), []}; +pathinfo_querystring([$?|Rest], SoFar) -> + {lists:reverse(SoFar), Rest}; +pathinfo_querystring([C|Rest], SoFar) -> + pathinfo_querystring(Rest, [C|SoFar]). + +split_script_path([$?|QueryString], SoFar) -> + Path = httpd_util:decode_hex(lists:reverse(SoFar)), + case file:read_file_info(Path) of + {ok,FileInfo} when FileInfo#file_info.type == regular -> + {Path, [$?|QueryString]}; + {ok,FileInfo} -> + not_a_script; + {error,Reason} -> + not_a_script + end; +split_script_path([], SoFar) -> + Path = httpd_util:decode_hex(lists:reverse(SoFar)), + case file:read_file_info(Path) of + {ok,FileInfo} when FileInfo#file_info.type == regular -> + {Path, []}; + {ok,FileInfo} -> + not_a_script; + {error,Reason} -> + not_a_script + end; +split_script_path([$/|Rest], SoFar) -> + Path = httpd_util:decode_hex(lists:reverse(SoFar)), + case file:read_file_info(Path) of + {ok, FileInfo} when FileInfo#file_info.type == regular -> + {Path, [$/|Rest]}; + {ok, _FileInfo} -> + split_script_path(Rest, [$/|SoFar]); + {error, _Reason} -> + split_script_path(Rest, [$/|SoFar]) + end; +split_script_path([C|Rest], SoFar) -> + split_script_path(Rest,[C|SoFar]). + +%% suffix + +suffix(Path) -> + case filename:extension(Path) of + [] -> + []; + Extension -> + tl(Extension) + end. + +%% to_upper + +to_upper([C|Cs]) when C >= $a, C =< $z -> + [C-($a-$A)|to_upper(Cs)]; +to_upper([C|Cs]) -> + [C|to_upper(Cs)]; +to_upper([]) -> + []. + +%% to_lower + +to_lower([C|Cs]) when C >= $A, C =< $Z -> + [C+($a-$A)|to_lower(Cs)]; +to_lower([C|Cs]) -> + [C|to_lower(Cs)]; +to_lower([]) -> + []. + + +%% strip +strip(Value)-> + lists:reverse(remove_ws(lists:reverse(remove_ws(Value)))). + +remove_ws([$\s|Rest])-> + remove_ws(Rest); +remove_ws([$\t|Rest]) -> + remove_ws(Rest); +remove_ws(Rest) -> + Rest. + +%% split + +split(String,RegExp,Limit) -> + case regexp:parse(RegExp) of + {error,Reason} -> + {error,Reason}; + {ok,_} -> + {ok,do_split(String,RegExp,Limit)} + end. + +do_split(String,RegExp,1) -> + [String]; + +do_split(String,RegExp,Limit) -> + case regexp:first_match(String,RegExp) of + {match,Start,Length} -> + [string:substr(String,1,Start-1)| + do_split(lists:nthtail(Start+Length-1,String),RegExp,Limit-1)]; + nomatch -> + [String] + end. + +%% header +header(StatusCode,Date)when list(Date)-> + header(StatusCode,"text/plain",false); + +header(StatusCode, PersistentConnection) when integer(StatusCode)-> + Date = rfc1123_date(), + Connection = + case PersistentConnection of + true -> + ""; + _ -> + "Connection: close \r\n" + end, + io_lib:format("HTTP/1.1 ~w ~s \r\nDate: ~s\r\nServer: ~s\r\n~s", + [StatusCode, httpd_util:reason_phrase(StatusCode), + Date, ?SERVER_SOFTWARE, Connection]). + +%%---------------------------------------------------------------------- + +header(StatusCode, MimeType, Date) when list(Date) -> + header(StatusCode, MimeType, false,rfc1123_date()); + + +header(StatusCode, MimeType, PersistentConnection) when integer(StatusCode) -> + header(StatusCode, MimeType, PersistentConnection,rfc1123_date()). + + +%%---------------------------------------------------------------------- + +header(416, MimeType,PersistentConnection,Date)-> + Connection = + case PersistentConnection of + true -> + ""; + _ -> + "Connection: close \r\n" + end, + io_lib:format("HTTP/1.1 ~w ~s \r\nDate: ~s\r\nServer: ~s\r\n" + "Content-Range:bytes *" + "Content-Type: ~s\r\n~s", + [416, httpd_util:reason_phrase(416), + Date, ?SERVER_SOFTWARE, MimeType, Connection]); + + +header(StatusCode, MimeType,PersistentConnection,Date) when integer(StatusCode)-> + Connection = + case PersistentConnection of + true -> + ""; + _ -> + "Connection: close \r\n" + end, + io_lib:format("HTTP/1.1 ~w ~s \r\nDate: ~s\r\nServer: ~s\r\n" + "Content-Type: ~s\r\n~s", + [StatusCode, httpd_util:reason_phrase(StatusCode), + Date, ?SERVER_SOFTWARE, MimeType, Connection]). + + + +%% make_name/2, make_name/3 +%% Prefix -> string() +%% First part of the name, e.g. "httpd" +%% Addr -> {A,B,C,D} | string() | undefined +%% The address part of the name. +%% e.g. "123.234.55.66" or {123,234,55,66} or "otp.ericsson.se" +%% for a host address or undefined if local host. +%% Port -> integer() +%% Last part of the name, such as the HTTPD server port +%% number (80). +%% Postfix -> Any string that will be added last to the name +%% +%% Example: +%% make_name("httpd","otp.ericsson.se",80) => httpd__otp_ericsson_se__80 +%% make_name("httpd",undefined,8088) => httpd_8088 + +make_name(Prefix,Port) -> + make_name(Prefix,undefined,Port,""). + +make_name(Prefix,Addr,Port) -> + make_name(Prefix,Addr,Port,""). + +make_name(Prefix,"*",Port,Postfix) -> + make_name(Prefix,undefined,Port,Postfix); + +make_name(Prefix,any,Port,Postfix) -> + make_name1(io_lib:format("~s_~w~s",[Prefix,Port,Postfix])); + +make_name(Prefix,undefined,Port,Postfix) -> + make_name1(io_lib:format("~s_~w~s",[Prefix,Port,Postfix])); + +make_name(Prefix,Addr,Port,Postfix) -> + NameString = + Prefix ++ "__" ++ make_name2(Addr) ++ "__" ++ + integer_to_list(Port) ++ Postfix, + make_name1(NameString). + +make_name1(String) -> + list_to_atom(lists:flatten(String)). + +make_name2({A,B,C,D}) -> + io_lib:format("~w_~w_~w_~w",[A,B,C,D]); +make_name2(Addr) -> + search_and_replace(Addr,$.,$_). + +search_and_replace(S,A,B) -> + Fun = fun(What) -> + case What of + A -> B; + O -> O + end + end, + lists:map(Fun,S). + + + +%%---------------------------------------------------------------------- +%% Converts a string that constists of 0-9,A-F,a-f to a +%% integer +%%---------------------------------------------------------------------- + +hexlist_to_integer([])-> + empty; + + +%%When the string only contains one value its eaasy done. +%% 0-9 +hexlist_to_integer([Size]) when Size>=48 , Size=<57 -> + Size-48; +%% A-F +hexlist_to_integer([Size]) when Size>=65 , Size=<70 -> + Size-55; +%% a-f +hexlist_to_integer([Size]) when Size>=97 , Size=<102 -> + Size-87; +hexlist_to_integer([Size]) -> + not_a_num; + +hexlist_to_integer(Size) -> + Len=string:span(Size,"1234567890abcdefABCDEF"), + hexlist_to_integer2(Size,16 bsl (4 *(Len-2)),0). + +hexlist_to_integer2([],_Pos,Sum)-> + Sum; +hexlist_to_integer2([HexVal|HexString],Pos,Sum)when HexVal>=48,HexVal=<57-> + hexlist_to_integer2(HexString,Pos bsr 4,Sum+((HexVal-48)*Pos)); + +hexlist_to_integer2([HexVal|HexString],Pos,Sum)when HexVal>=65,HexVal=<70-> + hexlist_to_integer2(HexString,Pos bsr 4,Sum+((HexVal-55)*Pos)); + +hexlist_to_integer2([HexVal|HexString],Pos,Sum)when HexVal>=97,HexVal=<102-> + hexlist_to_integer2(HexString,Pos bsr 4,Sum+((HexVal-87)*Pos)); + +hexlist_to_integer2(_AfterHexString,_Pos,Sum)-> + Sum. + +%%---------------------------------------------------------------------- +%%Converts an integer to an hexlist +%%---------------------------------------------------------------------- +encode_hex(Num)-> + integer_to_hexlist(Num). + + +integer_to_hexlist(Num)-> + integer_to_hexlist(Num,getSize(Num),[]). + +integer_to_hexlist(Num,Pot,Res) when Pot<0 -> + convert_to_ascii([Num|Res]); + +integer_to_hexlist(Num,Pot,Res) -> + Position=(16 bsl (Pot*4)), + PosVal=Num div Position, + integer_to_hexlist(Num-(PosVal*Position),Pot-1,[PosVal|Res]). +convert_to_ascii(RevesedNum)-> + convert_to_ascii(RevesedNum,[]). + +convert_to_ascii([],Num)-> + Num; +convert_to_ascii([Num|Reversed],Number)when Num>-1, Num<10 -> + convert_to_ascii(Reversed,[Num+48|Number]); +convert_to_ascii([Num|Reversed],Number)when Num>9, Num<16 -> + convert_to_ascii(Reversed,[Num+55|Number]); +convert_to_ascii(NumReversed,Number) -> + error. + + + +getSize(Num)-> + getSize(Num,0). + +getSize(Num,Pot)when Num<(16 bsl(Pot *4)) -> + Pot-1; + +getSize(Num,Pot) -> + getSize(Num,Pot+1). + + + + + +create_etag(FileInfo)-> + create_etag(FileInfo#file_info.mtime,FileInfo#file_info.size). + +create_etag({{Year,Month,Day},{Hour,Min,Sec}},Size)-> + create_part([Year,Month,Day,Hour,Min,Sec])++io_lib:write(Size); + +create_etag(FileInfo,Size)-> + create_etag(FileInfo#file_info.mtime,Size). + +create_part(Values)-> + lists:map(fun(Val0)-> + Val=Val0 rem 60, + if + Val=<25 -> + 65+Val; % A-Z + Val=<50 -> + 72+Val; % a-z + %%Since no date s + true -> + Val-3 + end + end,Values). + + + +%%---------------------------------------------------------------------- +%%Function that controls whether a response is generated or not +%%---------------------------------------------------------------------- +response_generated(Info)-> + case httpd_util:key1search(Info#mod.data,status) of + %% A status code has been generated! + {StatusCode,PhraseArgs,Reason}-> + true; + %%No status code control repsonsxe + undefined -> + case httpd_util:key1search(Info#mod.data, response) of + %% No response has been generated! + undefined -> + false; + %% A response has been generated or sent! + Response -> + true + end + end. + + + + |