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37a9e82060
open-source-search-engine/HttpMime.cpp
mwells 37a9e82060 update the dirty word list. but we still 
should remove tags, except maybe outlinks,
and detect the dirty words on what remains.
getting too many false positives in tags still.
2013-10-15 01:01:19 -07:00

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// -*- c-basic-offset:8 tab-width:8 -*-
#include "gb-include.h"
#include "HttpMime.h"
#include "HashTable.h"
// . convert these values to strings
// . these must be 1-1 with the #define's in HttpMime.h
char *g_contentTypeStrings [] = {
"" ,
"html" ,
"text" ,
"xml" ,
"pdf" ,
"doc" ,
"xls" ,
"ppt" ,
"ps" , // 8
"gif" , // 9
"jpg" , // 10
"png" , // 11
"tiff" , // 12
"bmp" , // 13
"javascript" , // 14
"css" , // 15
"json" // 16
};
HttpMime::HttpMime () { reset(); }
void HttpMime::reset ( ) {
m_status = -1;
m_contentLen = -1;
m_lastModifiedDate = 0;
m_contentType = CT_HTML;
m_lastModifiedDate = 0;
m_charset = NULL;
m_charsetLen = 0;
m_cookie = NULL;
m_cookieLen = 0;
m_locationField = NULL;
m_locationFieldLen = 0;
m_contentEncodingPos = NULL;
m_contentLengthPos = NULL;
}
// . returns false if could not get a valid mime
// . we need the url in case there's a Location: mime that's base-relative
bool HttpMime::set ( char *buf , long bufLen , Url *url ) {
// reset some stuff
m_contentLen = -1;
m_content = NULL;
m_bufLen = 0;
m_contentType = CT_HTML;
m_contentEncoding = ET_IDENTITY;
m_lastModifiedDate = 0;
m_charset = NULL;
m_charsetLen = 0;
// at the very least we should have a "HTTP/x.x 404\[nc]"
if ( bufLen < 13 ) { m_boundaryLen = 0; return false; }
// . get the length of the Mime, must end in \r\n\r\n , ...
// . m_bufLen is used as the mime length
m_bufLen = getMimeLen ( buf , bufLen , &m_boundaryLen );
// . return false if we had no mime boundary
// . but set m_bufLen to 0 so getMimeLen() will return 0 instead of -1
// thus avoiding a potential buffer overflow
if ( m_bufLen < 0 ) { m_bufLen = 0; m_boundaryLen = 0; return false; }
// set this
m_content = buf + m_bufLen;
// . parse out m_status, m_contentLen, m_lastModifiedData, contentType
// . returns false on bad mime
return parse ( buf , m_bufLen , url );
}
// . returns -1 if no boundary found
long HttpMime::getMimeLen ( char *buf , long bufLen , long *bsize ) {
// size of the boundary
*bsize = 0;
// find the boundary
long i;
for ( i = 0 ; i < bufLen ; i++ ) {
// continue until we hit a \r or \n
if ( buf[i] != '\r' && buf[i] != '\n' ) continue;
// boundary check
if ( i + 1 >= bufLen ) continue;
// prepare for a smaller mime size
*bsize = 1;
// \r\r
if ( buf[i ] == '\r' && buf[i+1] == '\r' ) break;
// \n\n
if ( buf[i ] == '\n' && buf[i+1] == '\n' ) break;
// boundary check
if ( i + 3 >= bufLen ) continue;
// prepare for a larger mime size
*bsize = 2;
// \r\n\r\n
if ( buf[i ] == '\r' && buf[i+1] == '\n' &&
buf[i+2] == '\r' && buf[i+3] == '\n' ) break;
// \n\r\n\r
if ( buf[i ] == '\n' && buf[i+1] == '\r' &&
buf[i+2] == '\n' && buf[i+3] == '\r' ) break;
}
// return false if could not find the end of the MIME
if ( i == bufLen ) return -1;
return i + *bsize * 2;
}
// returns false on bad mime
bool HttpMime::parse ( char *mime , long mimeLen , Url *url ) {
// reset locUrl to 0
m_locUrl.reset();
// return if we have no valid complete mime
if ( mimeLen == 0 ) return false;
// status is on first line
m_status = -1;
// skip HTTP/x.x till we hit a space
char *p = mime;
char *pend = mime + mimeLen;
while ( p < pend && !is_wspace_a(*p) ) p++;
// then skip over spaces
while ( p < pend && is_wspace_a(*p) ) p++;
// return false on a problem
if ( p == pend ) return false;
// then read in the http status
m_status = atol2 ( p , pend - p );
// if no Content-Type: mime field was provided, assume html
m_contentType = CT_HTML;
// assume default charset
m_charset = NULL;
m_charsetLen = 0;
// set contentLen, lastModifiedDate, m_cookie
p = mime;
while ( p < pend ) {
// compute the length of the string starting at p and ending
// at a \n or \r
long len = 0;
while ( &p[len] < pend && p[len]!='\n' && p[len]!='\r' ) len++;
// . if we could not find a \n or \r there was an error
// . MIMEs must always end in \n or \r
if ( &p[len] >= pend ) return false;
// . stick a NULL at the end of the line
// . overwrites \n or \r TEMPORARILY
char c = p [ len ];
p [ len ] = '\0';
// parse out some meaningful data
if ( strncasecmp ( p , "Content-Length:" ,15) == 0 ) {
m_contentLengthPos = p + 15;
m_contentLen = atol( m_contentLengthPos);
}
else if ( strncasecmp ( p , "Last-Modified:" ,14) == 0 ) {
m_lastModifiedDate=atotime(p+14);
// do not let them exceed current time for purposes
// of sorting by date using datedb (see Msg16.cpp)
time_t now = time(NULL);
if (m_lastModifiedDate > now) m_lastModifiedDate = now;
}
else if ( strncasecmp ( p , "Content-Type:" ,13) == 0 )
m_contentType = getContentTypePrivate ( p + 13 );
else if ( strncasecmp ( p , "Set-Cookie: " ,11) == 0 ) {
m_cookie = p + 11;
m_cookieLen = gbstrlen ( p + 11 );
}
else if ( strncasecmp ( p , "Location:" , 9) == 0 ) {
// point to it
char *tt = p + 9;
// skip if space
if ( *tt == ' ' ) tt++;
if ( *tt == ' ' ) tt++;
// at least set this for Msg13.cpp to use
m_locationField = tt;
m_locationFieldLen = gbstrlen(tt);
// . we don't add the "www." because of slashdot.com
// . we skip initial spaces in this Url::set() routine
if(url)
m_locUrl.set ( url, p + 9, len - 9,
false/*addWWW?*/);
}
else if ( strncasecmp ( p , "Content-Encoding:", 17) == 0 ) {
//only support gzip now, it doesn't seem like servers
//implement the other types much
m_contentEncodingPos = p+17;
if(strstr(m_contentEncodingPos, "gzip")) {
m_contentEncoding = ET_GZIP;
}
else if(strstr(m_contentEncodingPos, "deflate")) {
//zlib's compression
m_contentEncoding = ET_DEFLATE;
}
}
//else if ( strncasecmp ( p, "Cookie:", 7) == 0 )
// log (LOG_INFO, "mime: Got Cookie = %s", (p+7));
// re-insert the character that we replaced with a '\0'
p [ len ] = c;
// go to next line
p += len;
// skip over the cruft at the end of this line
while ( p < pend && ( *p=='\r' || *p=='\n' ) ) p++;
}
return true;
}
// . s must be null terminated
// . http://wgc.chem.pu.ru/educate/rfc/rfc1945/part4.htm#3.3 has date formats
// . #1: Sun, 06 Nov 1994 08:49:37 GMT ;RFC 822, updated by RFC 1123
// . #2: Sunday, 06-Nov-94 08:49:37 GMT ;RFC 850,obsoleted by RFC1036
// . #3: Sun Nov 6 08:49:37 1994 ;ANSI C's asctime() format
// . #4: 06 Nov 1994 08:49:37 GMT ... my own
// . #5: 2007-12-31
time_t atotime ( char *s ) {
// skip non-alnum padding
while ( *s && ! isalnum (*s) ) s++;
// if first char is a num, it's type #4
if ( is_digit(*s) ) {
long num = atol(s);
// 2007-12-31
if ( num > 1900 ) return atotime5 ( s );
return atotime4 ( s );
}
// . determine if we have type #1, #2 or #3 date format
// . now if there's hyphens we have type #2
char *t = s;
while ( *t && *t!='-') t++;
if ( *t == '-' ) return atotime2 ( s );
// now if there's a comma we have type 1
t = s;
while ( *t && *t!=',') t++;
if ( *t == ',' ) return atotime1 ( s );
// otherwise, must be type 3
return atotime3 ( s );
}
// #1: Sun, 06 Nov 1994 08:49:37 GMT ;RFC 822, updated by RFC 1123
time_t atotime1 ( char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
t.tm_wday = getWeekday ( s );
while ( *s && ! isdigit(*s) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) - 1900 ; // # of years since 1900
while ( isdigit (*s) ) s++;
while ( isspace (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
time_t local = mktime ( &t );
// now, convert to utc
//time_t utc = time(NULL);
// get time here locally
//time_t here = localtime(&utc);
// what is the diff?
//long delta = here - utc;
// modify our time to make it into utc
//return local - delta;
return local;
}
// #2: Sunday, 06-Nov-94 08:49:37 GMT ;RFC 850,obsoleted by RFC1036
time_t atotime2 ( char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
t.tm_wday = getWeekday ( s ); // need getLongWeekday()?
while ( *s && ! isdigit ( *s ) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) ; // # of years since 1900
while ( isdigit (*s) ) s++;
while ( isspace (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
return mktime ( &t );
}
// #3: Sun Nov 6 08:49:37 1994 ;ANSI C's asctime() format
time_t atotime3 ( char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
t.tm_wday = getWeekday ( s ); // need getLongWeekday()?
while ( isalpha(*s) ) s++;
while ( isspace(*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
while ( *s && ! isspace (*s) ) s++;
while ( isspace (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) - 1900 ; // # of years since 1900
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
time_t tt = mktime ( &t );
return tt;
}
// . #4: 06 Nov 1994 08:49:37 GMT ;RFC 822, updated by RFC 1123
// . like atotime1()
time_t atotime4 ( char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
//t.tm_wday = getWeekday ( s );
//while ( *s && ! isdigit(*s) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) - 1900 ; // # of years since 1900
while ( isdigit (*s) ) s++;
while ( isspace (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
return mktime ( &t );
}
// 2007-12-31
time_t atotime5 ( char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// YEAR
long y = atol ( s ) ;
// must be > 1900
if ( y < 1900 ) return -1;
if ( y > 2100 ) return -1;
t.tm_year = y - 1900 ; // # of years since 1900
// skip year
while ( *s && isdigit (*s) ) s++;
// skip the hyphen or space
if ( *s != '-' && *s !='/' && *s !=' ' ) return -1;
s++;
// must be a digit
if ( ! is_digit(*s) ) return -1;
// month
t.tm_mon = atol(s) - 1;
// skip month
while ( *s && isdigit (*s) ) s++;
// skip the hyphen or space
if ( *s != '-' && *s !='/' && *s !=' ' ) return -1;
s++;
// must be a digit
if ( ! is_digit(*s) ) return -1;
// day of week
t.tm_mday = atol ( s );
while ( isdigit (*s) ) s++;
while ( isspace (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
return mktime ( &t );
}
// sunday=0, monday=1, tuesday=2, wednesday=3, thursday=4, friday=5, saturday=6
// sun=0, mon=1, tue=2, wed=3, thu=4, fri=5, sat=6
long getWeekday ( char *s ) {
char a = tolower(s[0]);
char b = tolower(s[1]);
switch ( a ) {
case 's':
if ( b=='u' ) return 0; // sun
return 6; // sat
case 'm':
return 1; // mon
case 't':
if ( b=='u' ) return 2; // tue
return 4; // thu
case 'w':
return 3; // wed
case 'f':
return 5; // fri
}
// bad week day, return sunday
return 0;
}
long getMonth ( char *s ) {
char a = tolower(s[0]);
char b = tolower(s[1]);
char c = tolower(s[2]);
switch ( a ) {
case 'j':
if ( b == 'a' ) return 0; // january
if ( c == 'n' ) return 5; // june
if ( c == 'l' ) return 6; // july
case 'm':
if ( c == 'r' ) return 2; // march
if ( c == 'y' ) return 4; // may
case 'a':
if ( b == 'p' ) return 3; // april
if ( b == 'u' ) return 7; // august
case 'f': return 1; // feburary
case 's': return 8; // september
case 'o': return 9; // october
case 'n': return 10; // november
case 'd': return 11; // december
}
// default
return 0;
}
// . s = "xx:xx:xx"
void getTime ( char *s , int *sec , int *min , int *hour ) {
*hour = atol ( s );
while ( isdigit ( *s ) ) s++; if ( *s == ':' ) s++;
*min = atol ( s );
while ( isdigit ( *s ) ) s++; if ( *s == ':' ) s++;
*sec = atol ( s );
}
// . s is a NULL terminated string like "text/html"
long HttpMime::getContentTypePrivate ( char *s ) {
char *send = NULL;
char c;
long ct;
// skip spaces
while ( *s==' ' || *s=='\t' ) s++;
// find end of s
send = s;
// they can have "text/plain;charset=UTF-8" too
for ( ; *send && *send !=';' && *send !='\r' && *send !='\n' ; send++);
//
// point to possible charset desgination
//
char *t = send ;
// charset follows the semicolon
if ( *t == ';' ) {
// skip semicolon
t++;
// skip spaces
while ( *t==' ' || *t=='\t' ) t++;
// get charset name "charset=euc-jp"
if ( strncasecmp ( t , "charset" , 7 ) != 0 ) goto next;
// skip it
t += 7;
// skip spaces, equal, spaces
while ( *t==' ' || *t=='\t' ) t++;
if ( *t=='=' ) t++;
while ( *t==' ' || *t=='\t' ) t++;
// get charset
m_charset = t;
// get length
while ( *t && *t!='\r' && *t!='\n' && *t!=' ' && *t!='\t') t++;
m_charsetLen = t - m_charset;
}
next:
// temp term it for the strcmp() function
c = *send; *send = '\0';
// set this
ct = -1;
// html
if (!strcasecmp(s,"text/html" ) ) ct = CT_HTML;
else if (!strcasecmp(s,"text/plain" ) ) ct = CT_TEXT;
else if (!strcasecmp(s,"text/xml" ) ) ct = CT_XML;
else if (!strcasecmp(s,"text/txt" ) ) ct = CT_TEXT;
else if (!strcasecmp(s,"text" ) ) ct = CT_TEXT;
else if (!strcasecmp(s,"text" ) ) ct = CT_TEXT;
else if (!strcasecmp(s,"txt" ) ) ct = CT_TEXT;
else if (!strcasecmp(s,"application/xml" ) ) ct = CT_XML;
else if (!strcasecmp(s,"application/xhtml+xml" ) ) ct = CT_XML;
else if (!strcasecmp(s,"application/rss+xml" ) ) ct = CT_XML;
else if (!strcasecmp(s,"rss" ) ) ct = CT_XML;
else if (!strcasecmp(s,"application/rdf+xml" ) ) ct = CT_XML;
else if (!strcasecmp(s,"application/atom+xml" ) ) ct = CT_XML;
else if (!strcasecmp(s,"atom+xml" ) ) ct = CT_XML;
else if (!strcasecmp(s,"application/pdf" ) ) ct = CT_PDF;
else if (!strcasecmp(s,"application/msword" ) ) ct = CT_DOC;
else if (!strcasecmp(s,"application/vnd.ms-excel") ) ct = CT_XLS;
else if (!strcasecmp(s,"application/vnd.ms-powerpoint")) ct = CT_PPT;
else if (!strcasecmp(s,"application/mspowerpoint") ) ct = CT_PPT;
else if (!strcasecmp(s,"application/postscript" ) ) ct = CT_PS;
else if (!strcasecmp(s,"image/gif" ) ) ct = CT_GIF;
else if (!strcasecmp(s,"image/jpeg" ) ) ct = CT_JPG;
else if (!strcasecmp(s,"image/png" ) ) ct = CT_PNG;
else if (!strcasecmp(s,"image/tiff" ) ) ct = CT_TIFF;
else if (!strncasecmp(s,"image/",6 ) ) ct = CT_IMAGE;
else if (!strcasecmp(s,"application/javascript" ) ) ct = CT_JS;
else if (!strcasecmp(s,"application/x-javascript") ) ct = CT_JS;
else if (!strcasecmp(s,"text/javascript" ) ) ct = CT_JS;
else if (!strcasecmp(s,"text/x-js" ) ) ct = CT_JS;
else if (!strcasecmp(s,"text/js" ) ) ct = CT_JS;
else if (!strcasecmp(s,"text/css" ) ) ct = CT_CSS;
else if (!strcasecmp(s,"application/json" ) ) ct = CT_JSON;
// facebook.com:
else if (!strcasecmp(s,"application/vnd.wap.xhtml+xml") ) ct =CT_HTML;
else if (!strcasecmp(s,"binary/octet-stream") ) ct = CT_UNKNOWN;
else if (!strcasecmp(s,"application/octet-stream") ) ct = CT_UNKNOWN;
else if (!strcasecmp(s,"application/binary" ) ) ct = CT_UNKNOWN;
else if (!strcasecmp(s,"application/x-tar" ) ) ct = CT_UNKNOWN;
else if ( !strncmp ( s , "audio/",6) ) ct = CT_UNKNOWN;
// . semicolon separated list of info, sometimes an element is html
// . these might have an address in them...
else if (!strcasecmp(s,"text/x-vcard" ) ) ct = CT_HTML;
// log it for reference
//if ( ct == -1 ) { char *xx=NULL;*xx=0; }
if ( ct == -1 ) {
ct = CT_UNKNOWN;
log("http: unrecognized content type \"%s\"",s);
}
// unterm it
*send = c;
// return 0 for the contentType if unknown
return ct;
}
// the table that maps a file extension to a content type
static HashTable s_mimeTable;
bool s_init = false;
void resetHttpMime ( ) {
s_mimeTable.reset();
}
// . list of types is on: http://www.duke.edu/websrv/file-extensions.html
// . i copied it to the bottom of this file though
const char *HttpMime::getContentTypeFromExtension ( char *ext ) {
// assume text/html if no extension provided
if ( ! ext || ! ext[0] ) return "text/html";
// get hash for table look up
long key = hash32n ( ext );
char *ptr = (char *)s_mimeTable.getValue ( key );
if ( ptr ) return ptr;
// if not found in table, assume text/html
return "text/html";
}
const char *HttpMime::getContentEncodingFromExtension ( char *ext ) {
if ( ! ext ) return NULL;
if ( strcasecmp ( ext ,"bz2" )==0 ) return "x-bzip2";
if ( strcasecmp ( ext ,"gz" )==0 ) return "x-gzip";
//if ( strcasecmp ( ext ,"htm" ) == 0 ) return "text/html";
//if ( strcasecmp ( ext ,"html" ) == 0 ) return "text/html";
return NULL;
}
// make a redirect mime
void HttpMime::makeRedirMime ( char *redir , long redirLen ) {
char *p = m_buf;
memcpy ( p , "HTTP/1.0 302 RD\r\nLocation: " , 27 );
p += 27;
if ( redirLen > 600 ) redirLen = 600;
memcpy ( p , redir , redirLen );
p += redirLen;
*p++ = '\r';
*p++ = '\n';
*p++ = '\r';
*p++ = '\n';
*p = '\0';
m_bufLen = p - m_buf;
if ( m_bufLen > 1023 ) { char *xx=NULL;*xx=0; }
// set the mime's length
//m_bufLen = gbstrlen ( m_buf );
}
// a cacheTime of -1 means browser should not cache at all
void HttpMime::makeMime ( long totalContentLen ,
long cacheTime ,
time_t lastModified ,
long offset ,
long bytesToSend ,
char *ext ,
bool POSTReply ,
char *contentType ,
char *charset ,
long httpStatus ,
char *cookie ) {
// assume UTF-8
//if ( ! charset ) charset = "utf-8";
// . make the content type line
// . uses a static buffer
if ( ! contentType )
contentType = (char *)getContentTypeFromExtension ( ext );
// do not cache plug ins
if ( contentType && strcmp(contentType,"application/x-xpinstall")==0)
cacheTime = -2;
// assume UTF-8, but only if content type is text
// . No No No!!!
// . This prevents charset specification in html files
// . -partap
//if ( ! charset && contentType && strncmp(contentType,"text",4)==0)
// charset = "utf-8";
// this is used for bz2 and gz files (mp3?)
const char *contentEncoding = getContentEncodingFromExtension ( ext );
// the string
char enc[128];
if ( contentEncoding )
sprintf ( enc , "Content-Encoding: %s\r\n", contentEncoding );
else
enc[0] = '\0';
// get the time now
//time_t now = getTimeGlobal();
time_t now;
if ( isClockInSync() ) now = getTimeGlobal();
else now = getTimeLocal();
// get the greenwhich mean time (GMT)
char ns[128];
struct tm *timeStruct = gmtime ( &now );
// Wed, 20 Mar 2002 16:47:30 GMT
strftime ( ns , 126 , "%a, %d %b %Y %T GMT" , timeStruct );
// if lastModified is 0 use now
if ( lastModified == 0 ) lastModified = now;
// convert lastModified greenwhich mean time (GMT)
char lms[128];
timeStruct = gmtime ( &lastModified );
// Wed, 20 Mar 2002 16:47:30 GMT
strftime ( lms , 126 , "%a, %d %b %Y %T GMT" , timeStruct );
// . the pragma no cache string (used just for proxy servers?)
// . also use cache-control: for the browser itself (HTTP1.1, though)
// . pns = "Pragma: no-cache\nCache-Control: no-cache\nExpires: -1\n";
char tmp[128];
char *pns ;
// with cache-control on, when you hit the back button, it reloads
// the page, this is bad for most things... so we only avoid the
// cache for index.html and PageAddUrl.cpp (the main and addurl page)
if ( cacheTime == -2 ) pns = "Cache-Control: no-cache\r\n"
"Pragma: no-cache\r\n"
"Expires: -1\r\n";
// so when we click on a control link, it responds correctly.
// like turning spiders on.
else if ( cacheTime == -1 ) pns = "Pragma: no-cache\r\n"
"Expires: -1\r\n";
// don't specify cache times if it's 0 (let browser regulate it)
else if ( cacheTime == 0 ) pns = "";
// otherwise, expire tag: "Expires: Wed, 23 Dec 2001 10:23:01 GMT"
else {
time_t expDate = now + cacheTime;
timeStruct = gmtime ( &expDate );
strftime ( tmp , 100 , "Expires: %a, %d %b %Y %T GMT\r\n",
timeStruct );
pns = tmp;
}
// . set httpStatus
// . a reply to a POST (not a GET or HEAD) should be 201
char *p = m_buf;
char *smsg = "";
if ( POSTReply ) {
if ( httpStatus == -1 ) httpStatus = 200;
if ( httpStatus == 200 ) smsg = " OK";
if ( ! charset ) charset = "utf-8";
//sprintf ( m_buf ,
p += sprintf ( p,
"HTTP/1.0 %li%s\r\n"
"Date: %s\r\n"
//"P3P: CP=\"CAO PSA OUR\"\r\n"
"Server: Gigablast/1.0\r\n"
"Content-Length: %li\r\n"
//"Expires: Wed, 23 Dec 2003 10:23:01 GMT\r\n"
//"Expires: -1\r\n"
"Connection: Close\r\n"
"%s"
"Content-Type: %s\r\n\r\n",
//"Connection: Keep-Alive\r\n"
//"%s"
//"Location: fuck\r\n"
//"Location: http://192.168.0.4:8000/cgi/3.cgi\r\n"
//"Last-Modified: %s\r\n\r\n" ,
httpStatus , smsg ,
ns , totalContentLen , enc , contentType );
//pns ,
//ns );
//lms );
}
// . is it partial content?
// . if bytesToSend is < 0 it means "totalContentLen"
else if ( offset > 0 || bytesToSend != -1 ) {
if ( httpStatus == -1 ) httpStatus = 206;
if ( ! charset ) charset = "utf-8";
//sprintf ( m_buf ,
p += sprintf( p,
"HTTP/1.0 %li Partial content\r\n"
"%s"
"Content-Length: %li\r\n"
"Content-Range: %li-%li(%li)\r\n"// added "bytes"
"Connection: Close\r\n"
//"P3P: CP=\"CAO PSA OUR\"\r\n"
"Server: Gigablast/1.0\r\n"
"%s"
"Date: %s\r\n"
"Last-Modified: %s\r\n"
"Content-Type: %s\r\n",
httpStatus ,
enc ,bytesToSend ,
offset , offset + bytesToSend ,
totalContentLen ,
pns ,
ns ,
lms , contentType );
// otherwise, do a normal mime
}
else {
char encoding[256];
if (charset) sprintf(encoding, "; charset=%s", charset);
else encoding[0] = '\0';
if ( httpStatus == -1 ) httpStatus = 200;
if ( httpStatus == 200 ) smsg = " OK";
//sprintf ( m_buf ,
p += sprintf( p,
"HTTP/1.0 %li%s\r\n"
// make it at least 4 spaces so we can change
// the length of the content should we insert
// a login bar in Proxy::storeLoginBar()
"Content-Length: %04li\r\n"
"%s"
"Content-Type: %s",
httpStatus , smsg ,
totalContentLen , enc , contentType );
if ( charset ) p += sprintf ( p , "; charset=%s", charset );
p += sprintf ( p , "\r\n");
p += sprintf ( p ,
//"Connection: Keep-Alive\r\n"
"Connection: Close\r\n"
//"P3P: CP=\"CAO PSA OUR\"\r\n"
"Server: Gigablast/1.0\r\n"
"%s"
"Date: %s\r\n"
"Last-Modified: %s\r\n" ,
pns ,
ns ,
lms );
}
// write the cookie if we have one
if (cookie) {
// now it is a list of Set-Cookie: x=y\r\n lines
//p += sprintf ( p, "Set-Cookie: %s\r\n", cookie);
if ( strncmp(cookie,"Set-Cookie",10 ) )
p += sprintf(p,"Set-Cookie: ");
p += sprintf ( p, "%s", cookie);
if ( p[-1] != '\n' && p[-2] != '\r' ) {
*p++ = '\r';
*p++ = '\n';
}
}
// write another line to end the mime
p += sprintf(p, "\r\n");
// set the mime's length
//m_bufLen = gbstrlen ( m_buf );
m_bufLen = p - m_buf;
}
//FILE EXTENSIONS to MIME CONTENT-TYPE
//------------------------------------
// set hash table
static char *s_ext[] = {
"ai" , "application/postscript",
"aif" , "audio/x-aiff",
"aifc" , "audio/x-aiff",
"aiff" , "audio/x-aiff",
"asc" , "text/plain",
"au" , "audio/basic",
"avi" , "video/x-msvideo",
"bcpio" , "application/x-bcpio",
"bin" , "application/octet-stream",
"bmp" , "image/gif",
"bz2", "application/x-bzip2",
"c" , "text/plain",
"cc" , "text/plain",
"ccad" , "application/clariscad",
"cdf" , "application/x-netcdf",
"class" , "application/octet-stream",
"cpio" , "application/x-cpio",
"cpt" , "application/mac-compactpro",
"csh" , "application/x-csh",
"css" , "text/css",
"dcr" , "application/x-director",
"dir" , "application/x-director",
"dms" , "application/octet-stream",
"doc" , "application/msword",
"drw" , "application/drafting",
"dvi" , "application/x-dvi",
"dwg" , "application/acad",
"dxf" , "application/dxf",
"dxr" , "application/x-director",
"eps" , "application/postscript",
"etx" , "text/x-setext",
"exe" , "application/octet-stream",
"ez" , "application/andrew-inset",
"f" , "text/plain",
"f90" , "text/plain",
"fli" , "video/x-fli",
"gif" , "image/gif",
"gtar" , "application/x-gtar",
"gz" , "application/x-gzip",
"h" , "text/plain",
"hdf" , "application/x-hdf",
"hh" , "text/plain",
"hqx" , "application/mac-binhex40",
"htm" , "text/html",
"html" , "text/html",
"ice" , "x-conference/x-cooltalk",
"ief" , "image/ief",
"iges" , "model/iges",
"igs" , "model/iges",
"ips" , "application/x-ipscript",
"ipx" , "application/x-ipix",
"jpe" , "image/jpeg",
"jpeg" , "image/jpeg",
"jpg" , "image/jpeg",
"js" , "application/x-javascript",
"kar" , "audio/midi",
"latex" , "application/x-latex",
"lha" , "application/octet-stream",
"lsp" , "application/x-lisp",
"lzh" , "application/octet-stream",
"m" , "text/plain",
"man" , "application/x-troff-man",
"me" , "application/x-troff-me",
"mesh" , "model/mesh",
"mid" , "audio/midi",
"midi" , "audio/midi",
"mif" , "application/vnd.mif",
"mime" , "www/mime",
"mov" , "video/quicktime",
"movie" , "video/x-sgi-movie",
"mp2" , "audio/mpeg",
"mp3" , "audio/mpeg",
"mpe" , "video/mpeg",
"mpeg" , "video/mpeg",
"mpg" , "video/mpeg",
"mpga" , "audio/mpeg",
"ms" , "application/x-troff-ms",
"msh" , "model/mesh",
"nc" , "application/x-netcdf",
"oda" , "application/oda",
"pbm" , "image/x-portable-bitmap",
"pdb" , "chemical/x-pdb",
"pdf" , "application/pdf",
"pgm" , "image/x-portable-graymap",
"pgn" , "application/x-chess-pgn",
"png" , "image/png",
"ico" , "image/x-icon",
"pnm" , "image/x-portable-anymap",
"pot" , "application/mspowerpoint",
"ppm" , "image/x-portable-pixmap",
"pps" , "application/mspowerpoint",
"ppt" , "application/mspowerpoint",
"ppz" , "application/mspowerpoint",
"pre" , "application/x-freelance",
"prt" , "application/pro_eng",
"ps" , "application/postscript",
"qt" , "video/quicktime",
"ra" , "audio/x-realaudio",
"ram" , "audio/x-pn-realaudio",
"ras" , "image/cmu-raster",
"rgb" , "image/x-rgb",
"rm" , "audio/x-pn-realaudio",
"roff" , "application/x-troff",
"rpm" , "audio/x-pn-realaudio-plugin",
"rtf" , "text/rtf",
"rtx" , "text/richtext",
"scm" , "application/x-lotusscreencam",
"set" , "application/set",
"sgm" , "text/sgml",
"sgml" , "text/sgml",
"sh" , "application/x-sh",
"shar" , "application/x-shar",
"silo" , "model/mesh",
"sit" , "application/x-stuffit",
"skd" , "application/x-koan",
"skm" , "application/x-koan",
"skp" , "application/x-koan",
"skt" , "application/x-koan",
"smi" , "application/smil",
"smil" , "application/smil",
"snd" , "audio/basic",
"sol" , "application/solids",
"spl" , "application/x-futuresplash",
"src" , "application/x-wais-source",
"step" , "application/STEP",
"stl" , "application/SLA",
"stp" , "application/STEP",
"sv4cpio" , "application/x-sv4cpio",
"sv4crc" , "application/x-sv4crc",
"swf" , "application/x-shockwave-flash",
"t" , "application/x-troff",
"tar" , "application/x-tar",
"tcl" , "application/x-tcl",
"tex" , "application/x-tex",
"texi" , "application/x-texinfo",
"texinfo", "application/x-texinfo",
"tif" , "image/tiff",
"tiff" , "image/tiff",
"tr" , "application/x-troff",
"tsi" , "audio/TSP-audio",
"tsp" , "application/dsptype",
"tsv" , "text/tab-separated-values",
"txt" , "text/plain",
"unv" , "application/i-deas",
"ustar" , "application/x-ustar",
"vcd" , "application/x-cdlink",
"vda" , "application/vda",
"viv" , "video/vnd.vivo",
"vivo" , "video/vnd.vivo",
"vrml" , "model/vrml",
"wav" , "audio/x-wav",
"wrl" , "model/vrml",
"xbm" , "image/x-xbitmap",
"xlc" , "application/vnd.ms-excel",
"xll" , "application/vnd.ms-excel",
"xlm" , "application/vnd.ms-excel",
"xls" , "application/vnd.ms-excel",
"xlw" , "application/vnd.ms-excel",
"xml" , "text/xml",
"xpm" , "image/x-xpixmap",
"xwd" , "image/x-xwindowdump",
"xyz" , "chemical/x-pdb",
"zip" , "application/zip" ,
"xpi", "application/x-xpinstall"
};
// . init s_mimeTable in this call
// . called from HttpServer::init
// . returns false and sets g_errno on error
bool HttpMime::init ( ) {
// only need to call once
if ( s_init ) return true;
// make sure only called once
s_init = true;
//s_mimeTable.set ( 256 );
// set table from internal list
for ( unsigned long i = 0 ; i < sizeof(s_ext)/sizeof(char *) ; i+=2 ) {
long key = hash32n ( s_ext[i] );
if ( ! s_mimeTable.addKey ( key , (long)s_ext[i+1] ) )
return log("HttpMime::init: failed to set table.");
}
// quick text
const char *tt = getContentTypeFromExtension ( "zip" );
if ( strcmp(tt,"application/zip") != 0 ) {
g_errno = EBADENGINEER;
return log("http: Failed to init mime table correctly.");
}
// a more thorough test
for ( unsigned long i = 0 ; i < sizeof(s_ext)/sizeof(char *) ; i+=2) {
tt = getContentTypeFromExtension ( s_ext[i] );
if ( strcmp(tt,s_ext[i+1]) == 0 ) continue;
g_errno = EBADENGINEER;
return log("http: Failed to do mime table correctly. i=%li",i);
}
// TODO: set it from a user supplied file here
return true;
}
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