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HttpRequest.cpp
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HttpRequest.cpp
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#include "gb-include.h"
#include "HttpRequest.h"
#include "ip.h"
HttpRequest::HttpRequest () { m_cgiBuf = NULL; m_cgiBuf2 = NULL; reset(); }
HttpRequest::~HttpRequest() { reset(); }
char HttpRequest::getReplyFormat() {
if ( m_replyFormatValid ) return m_replyFormat;
char *formatStr = getString("format");
char format = -1;//FORMAT_HTML;
// what format should search results be in? default is html
if ( formatStr && strcmp(formatStr,"html") == 0 ) format = FORMAT_HTML;
if ( formatStr && strcmp(formatStr,"json") == 0 ) format = FORMAT_JSON;
if ( formatStr && strcmp(formatStr,"xml") == 0 ) format = FORMAT_XML;
if ( formatStr && strcmp(formatStr,"csv") == 0 ) format = FORMAT_CSV;
if ( formatStr && strcmp(formatStr,"iframe")==0)
format=FORMAT_WIDGET_IFRAME;
if ( formatStr && strcmp(formatStr,"ajax")==0)
format=FORMAT_WIDGET_AJAX;
if ( formatStr && strcmp(formatStr,"append")==0)
format=FORMAT_WIDGET_APPEND;
// support old api &xml=1 to mean &format=1
if ( getLong("xml",0) ) {
format = FORMAT_XML;
}
// also support &json=1
if ( getLong("json",0) ) {
format = FORMAT_JSON;
}
if ( getLong("csv",0) ) {
format = FORMAT_CSV;
}
if ( getLong("iframe",0) ) {
format = FORMAT_WIDGET_IFRAME;
}
if ( getLong("ajax",0) ) {
format = FORMAT_WIDGET_AJAX;
}
if ( getLong("append",0) ) {
format = FORMAT_WIDGET_APPEND;
}
// default to html
if ( format == -1 )
format = FORMAT_HTML;
m_replyFormat = format;
m_replyFormatValid = true;
return format;
}
void HttpRequest::reset() {
m_numFields = 0;
m_replyFormatValid = false;
//if ( m_cgiBuf ) mfree ( m_cgiBuf , m_cgiBufMaxLen , "HttpRequest");
m_cgiBufLen = 0;
m_cgiBuf = NULL;
m_cgiBufMaxLen = 0;
//m_buf[0] = '\0';
//m_bufLen = 0;
m_path = NULL;
m_plen = 0;
m_ucontent = NULL;
m_ucontentLen = 0;
m_cookiePtr = NULL;
m_cookieLen = 0;
m_userIP = 0;
m_isMSIE = false;
m_reqBufValid = false;
m_reqBuf.purge();
if (m_cgiBuf2) {
mfree(m_cgiBuf2, m_cgiBuf2Size, "extraParms");
m_cgiBuf2 = NULL;
}
m_cgiBuf2Size = 0;
}
// returns false with g_errno set on error
bool HttpRequest::copy ( class HttpRequest *r , bool stealBuf ) {
gbmemcpy ( this , r , sizeof(HttpRequest) );
// do not copy this over though in that way
m_reqBuf.m_capacity = 0;
m_reqBuf.m_length = 0;
//m_reqBuf.m_buf = NULL;
m_reqBuf.m_usingStack = false;
m_reqBuf.m_encoding = csUTF8;
if ( stealBuf ) {
// if he's on the stack, that's a problem!
if ( r->m_reqBuf.m_usingStack ) { char *xx=NULL;*xx=0; }
// copy the safebuf member var directly
gbmemcpy ( &m_reqBuf , &r->m_reqBuf , sizeof(SafeBuf) );
// do not let it free anything
r->m_reqBuf.m_usingStack = true;
// that's it!
return true;
}
// otherwise we copy it and update the ptrs below
if ( ! m_reqBuf.safeMemcpy ( &r->m_reqBuf ) )
return false;
// fix ptrs
char *sbuf = r->m_reqBuf.getBufStart();
char *dbuf = m_reqBuf.getBufStart();
for ( int32_t i = 0 ; i < m_numFields ; i++ ) {
m_fields [i] = dbuf + (r->m_fields [i] - sbuf);
m_fieldValues[i] = NULL;
if ( r->m_fieldValues[i] )
m_fieldValues[i] = dbuf + (r->m_fieldValues[i] - sbuf);
}
m_cookiePtr = dbuf + (r->m_cookiePtr - sbuf );
m_metaCookie = dbuf + (r->m_metaCookie - sbuf );
m_ucontent = dbuf + (r->m_ucontent - sbuf );
m_path = dbuf + (r->m_path - sbuf );
m_cgiBuf = dbuf + (r->m_cgiBuf - sbuf );
// not supported yet. we'd have to allocate it
if ( m_cgiBuf2 ) { char *xx=NULL;*xx=0; }
return true;
}
#define RT_GET 0
#define RT_HEAD 1
#define RT_POST 2
#define RT_CONNECT 3
// TODO: ensure not sent to a proxy server since it will expect us to close it
// TODO: use chunked transfer encodings to do HTTP/1.1
// . form an HTTP request
// . use size 0 for HEAD requests
// . use size -1 for GET whole doc requests
// . fill in your own offset/size for partial GET requests
// . returns false and sets g_errno on error
// . NOTE: http 1.1 uses Keep-Alive by default (use Connection: close to not)
bool HttpRequest::set (char *url,int32_t offset,int32_t size,time_t ifModifiedSince,
char *userAgent , char *proto , bool doPost ,
char *cookie , char *additionalHeader ,
// if posting something, how many bytes is it?
int32_t postContentLen ,
// are we sending the request through an http proxy?
// if so this will be non-zero
int32_t proxyIp ,
char *proxyUsernamePwd ) {
m_reqBufValid = false;
int32_t hlen ;
int32_t port = 80;
char *hptr = getHostFast ( url , &hlen , &port );
char *path = getPathFast ( url );
// . use the full url if sending to an http proxy
// . HACK: do NOT do this if it is httpS because we end up
// using the http tunnel using the CONNECT cmd and the squid proxy
// will just forward/proxy just the entire tcp packets.
if ( proxyIp && strncmp(url,"https://",8) != 0 ) path = url;
char *pathEnd = NULL;
char *postData = NULL;
if ( doPost ) {
pathEnd = strstr(path,"?");
if ( pathEnd ) {
*pathEnd = '\0';
postData = pathEnd + 1;
}
}
// if no legit host
if ( hlen <= 0 || ! hptr ) { g_errno = EBADURL; return false; }
// sanity check. port is only 16 bits
if ( port > (int32_t)0xffff ) { g_errno = EBADURL; return false; }
// return false and set g_errno if url too big
//if ( url->getUrlLen() + 400 >= MAX_REQ_LEN ) {
// g_errno = EURLTOOBIG; return false;}
// assume request type is a GET
m_requestType = RT_GET;//0;
// get the host NULL terminated
char host[1024+8];
//int32_t hlen = url->getHostLen();
strncpy ( host , hptr , hlen );
host [ hlen ] = '\0';
// then port
//uint16_t port = url->getPort();
if ( port != 80 ) {
sprintf ( host + hlen , ":%"UINT32"" , (uint32_t)port );
hlen += gbstrlen ( host + hlen );
}
// the if-modified-since field
char ibuf[64];
char *ims = "";
if ( ifModifiedSince ) {
// NOTE: ctime appends a \n
sprintf(ibuf,"If-Modified-Since: %s UTC",
asctime(gmtime(&ifModifiedSince)));
// get the length
int32_t ilen = gbstrlen(ibuf);
// hack off \n from ctime - replace with \r\n\0
ibuf [ ilen - 1 ] = '\r';
ibuf [ ilen ] = '\n';
ibuf [ ilen + 1 ] = '\0';
// set ims to this string
ims = ibuf;
}
// . until we fix if-modified-since, take it out
// . seems like we are being called with it as true when should not be
ims="";
// . use one in conf file if caller did not provide
// . this is usually Gigabot/1.0
if ( ! userAgent ) userAgent = g_conf.m_spiderUserAgent;
// accept only these
char *accept = "*/*";
/*
"text/html, "
"text/plain, "
"text/xml, "
"application/pdf, "
"application/msword, "
"application/vnd.ms-excel, "
"application/mspowerpoint, "
"application/postscript";
*/
char *cmd = "GET";
if ( size == 0 ) cmd = "HEAD";
if ( doPost ) cmd = "POST";
// crap, can't spider nyt.com if we are 1.0, so use 1.0 but also
// note Connection: Close\r\n when making requests
//proto = "HTTP/1.1";
SafeBuf tmp;
char *up = "";
if ( proxyUsernamePwd && proxyUsernamePwd[0] ) {
tmp.safePrintf("Proxy-Authorization: Basic ");
tmp.base64Encode (proxyUsernamePwd,gbstrlen(proxyUsernamePwd));
tmp.safePrintf("\r\n");
up = tmp.getBufStart();
}
// . now use "Accept-Language: en" to tell servers we prefer english
// . i removed keep-alive connection since some connections close on
// non-200 ok http statuses and we think they're open since close
// signal (read 0 bytes) may have been delayed
char* acceptEncoding = "";
// the scraper is getting back gzipped search results from goog,
// so disable this for now
// i am re-enabling now for testing...
if(g_conf.m_gzipDownloads)
acceptEncoding = "Accept-Encoding: gzip;q=1.0\r\n";
// i thought this might stop wikipedia from forcing gzip on us
// but it did not!
// else
// acceptEncoding = "Accept-Encoding:\r\n";
// char *p = m_buf;
// init the safebuf to point to this buffer in our class to avoid
// a potential alloc
// m_reqBuf.setBuf ( m_buf , MAX_REQ_LEN , 0 , false, csUTF8 );
m_reqBuf.purge();
// indicate this is good
m_reqBufValid = true;
if ( size == 0 ) {
// 1 for HEAD requests
m_requestType = RT_HEAD;
m_reqBuf.safePrintf (
"%s %s %s\r\n"
"Host: %s\r\n"
"%s"
"User-Agent: %s\r\n"
"Connection: Close\r\n"
//"Connection: Keep-Alive\r\n"
"Accept-Language: en\r\n"
//"Accept: */*\r\n\r\n" ,
"Accept: %s\r\n"
"%s"
,
cmd,
path , proto, host ,
ims , userAgent , accept , up );
}
else if ( size != -1 )
m_reqBuf.safePrintf (
"%s %s %s\r\n"
"Host: %s\r\n"
"%s"
"User-Agent: %s\r\n"
"Connection: Close\r\n"
//"Connection: Keep-Alive\r\n"
"Accept-Language: en\r\n"
//"Accept: */*\r\n"
"Accept: %s\r\n"
"Range: bytes=%"INT32"-%"INT32"\r\n"
"%s"
,
cmd,
path ,
proto ,
host ,
ims ,
userAgent ,
accept ,
offset ,
offset + size ,
up);
else if ( offset > 0 && size == -1 )
m_reqBuf.safePrintf (
"%s %s %s\r\n"
"Host: %s\r\n"
"%s"
"User-Agent: %s\r\n"
"Connection: Close\r\n"
//"Connection: Keep-Alive\r\n"
"Accept-Language: en\r\n"
//"Accept: */*\r\n"
"Accept: %s\r\n"
"Range: bytes=%"INT32"-\r\n"
"%s"
,
cmd,
path ,
proto ,
host ,
ims ,
userAgent ,
accept ,
offset ,
up );
// Wget's request:
// GET / HTTP/1.0\r\nUser-Agent: Wget/1.10.2\r\nAccept: */*\r\nHost: 127.0.0.1:8000\r\nConnection: Keep-Alive\r\n\r\n
// firefox's request:
// GET /master?c=main HTTP/1.1\r\nHost: 10.5.1.203:8000\r\nUser-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.7) Gecko/20100715 Ubuntu/10.04 (lucid) Firefox/3.6.7\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip,deflate\r\nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nKeep-Alive: 115\r\nConnection: keep-alive\r\nReferer: http://10.5.0.2:8002/qpmdw.html\r\nCookie: __utma=267617550.1103353528.1269214594.1273256655.1276103782.12; __utmz=267617550.1269214594.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); _incvi=qCffL7N8chFyJLwWrBDMbNz2Q3EWmAnf4uA; s_lastvisit=1269900225815; s_pers=%20s_getnr%3D1276103782254-New%7C1339175782254%3B%20s_nrgvo%3DNew%7C1339175782258%3B\r\n\r\n
else {
// until we fix if-modified-since, take it out
//ims="";
//userAgent = "Wget/1.10.2";
//userAgent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.7) Gecko/20100715 Ubuntu/10.04 (lucid) Firefox/3.6.7";
//proto = "HTTP/1.0";
m_reqBuf.safePrintf (
"%s %s %s\r\n"
"User-Agent: %s\r\n"
"Accept: */*\r\n"
"Host: %s\r\n"
"%s"
"Connection: Close\r\n"
//"Connection: Keep-Alive\r\n"
//"Accept-Language: en\r\n"
"%s"
"%s"
,
//"Accept: %s\r\n\r\n" ,
//"\r\n",
cmd,
path ,
proto ,
userAgent ,
host ,
ims ,
acceptEncoding,
up );
//accept );
}
if ( additionalHeader )
m_reqBuf.safePrintf("%s\r\n",additionalHeader );
// cookie here
if ( cookie )
m_reqBuf.safePrintf("Cookie: %s\r\n",cookie );
// print content-length: if post
if ( postData ) {
// dammit... recaptcha does not work without this!!!!
m_reqBuf.safePrintf (
"Content-Type: "
"application/x-www-form-urlencoded\r\n");
}
// we need this if doing a post even if postData is NULL
if ( doPost ) {
int32_t contentLen = 0;
if ( postData ) contentLen = strlen(postData);
// this overrides if provided. -1 is default
if ( postContentLen >= 0 ) contentLen = postContentLen;
m_reqBuf.safePrintf ("Content-Length: %"INT32"\r\n", contentLen );
m_reqBuf.safePrintf("\r\n");
if ( postData ) m_reqBuf.safePrintf("%s",postData);
// log it for debug
//log("captch: %s",m_buf);
}
if ( ! doPost ) { // ! postData ) {
m_reqBuf.safePrintf("\r\n");
}
// set m_bufLen
//m_bufLen = p - m_buf;//gbstrlen ( m_buf );
// sanity check
// if ( m_bufLen + 1 > MAX_REQ_LEN ) {
// log("build: HttpRequest buf is too small.");
// char *xx = NULL; *xx = 0;
// }
// debug it
// log("hreq: %s",m_reqBuf.getBufStart());
// restore url buffer
if ( pathEnd ) *pathEnd = '?';
return true;
}
// . parse an incoming request
// . return false and set g_errno on error
// . CAUTION: we destroy "req" by replacing it's last char with a \0
// . last char must be \n or \r for it to be a proper request anyway
bool HttpRequest::set ( char *origReq , int32_t origReqLen , TcpSocket *sock ) {
// reset number of cgi field terms
reset();
if ( ! m_reqBuf.reserve ( origReqLen + 1 ) ) {
log("http: failed to copy request: %s",mstrerror(g_errno));
return false;
}
// copy it to avoid mangling it
m_reqBuf.safeMemcpy ( origReq , origReqLen );
// NULL term
m_reqBuf.pushChar('\0');
m_reqBufValid = true;
// and point to that
char *req = m_reqBuf.getBufStart();
int32_t reqLen = m_reqBuf.length() - 1;
// save this
m_userIP = 0; if ( sock ) m_userIP = sock->m_ip;
m_isSSL = 0; if ( sock ) m_isSSL = (bool)sock->m_ssl;
// TcpServer should always give us a NULL terminated request
if ( req[reqLen] != '\0' ) { char *xx = NULL; *xx = 0; }
// how long is the first line, the primary request
// int32_t i;
// for ( i = 0 ; i<reqLen && i<MAX_REQ_LEN &&
// req[i]!='\n' && req[i]!='\r'; i++);
// . now fill up m_buf, used to log the request
// . make sure the url was encoded correctly
// . we don't want assholes encoding every char so we can't see what
// url they are submitting to be spidered/indexed
// . also, don't de-code encoded ' ' '+' '?' '=' '&' because that would
// change the meaning of the url
// . and finally, non-ascii chars that don't display correctly
// . this should NULL terminate m_buf, too
// . turn this off for now, just try to log a different way
// m_bufLen = urlNormCode ( m_buf , MAX_REQ_LEN - 1 , req , i );
// ensure it's big enough to be a valid request
if ( reqLen < 5 ) {
log("http: got reqlen %"INT32"<5 = %s",reqLen,req);
g_errno = EBADREQUEST;
return false;
}
int32_t cmdLen = 0;
// or if first line too long
//if ( i >= 1024 ) { g_errno = EBADREQUEST; return false; }
// get the type, must be GET or HEAD
if ( strncmp ( req , "GET " , 4 ) == 0 ) {
m_requestType = RT_GET;
cmdLen = 3;
}
// these means a compressed reply was requested. use by query
// compression proxies.
else if ( strncmp ( req , "ZET " , 4 ) == 0 ) {
m_requestType = RT_GET;
cmdLen = 3;
}
else if ( strncmp ( req , "HEAD " , 5 ) == 0 ) {
m_requestType = RT_HEAD;
cmdLen = 4;
}
else if ( strncmp ( req , "POST " , 5 ) == 0 ) {
m_requestType = RT_POST;
cmdLen = 4;
}
else if ( strncmp ( req , "CONNECT " , 8 ) == 0 ) {
// take this out until it stops losing descriptors and works
//m_requestType = RT_CONNECT;
//cmdLen = 7;
// we no longer insert section info. emmanuel gets section
// info when injecting a doc now i think in PageInject.cpp.
// we do not proxy https requests because we can't
// decrypt the page contents to cache them or to insert
// the sectiondb voting markup, so it's kinda pointless...
// and i'm not aiming to be a full-fledge squid proxy.
log("http: CONNECT request not supported because we "
"can't insert section markup and we can't cache: %s",req);
g_errno = EBADREQUEST;
return false;
}
else {
log("http: got bad request cmd: %s",req);
g_errno = EBADREQUEST;
return false;
}
// . NULL terminate the request (a destructive operation!)
// . this removes the last \n in the trailing \r\n
// . shit, but it fucks up POST requests
if ( m_requestType != RT_POST ) {
req [ reqLen - 1 ] = '\0';
reqLen--;
}
// POST requests can be absolutely huge if you are injecting a 100MB
// file, so limit our strstrs to the end of the mime
char *d = NULL;
char dc;
// check for body if it was a POST request
if ( m_requestType == RT_POST ) {
d = strstr ( req , "\r\n\r\n" );
if ( d ) { dc = *d; *d = '\0'; }
else log("http: Got POST request without \\r\\n\\r\\n.");
}
// is it a proxy request?
m_isSquidProxyRequest = false;
if ( strncmp ( req + cmdLen + 1, "http://" ,7) == 0 ||
strncmp ( req + cmdLen + 1, "https://",8) == 0 ) {
m_isSquidProxyRequest = true;
// set url parms for it
m_squidProxiedUrl = req + cmdLen + 1;
char *p = m_squidProxiedUrl + 7;
if ( *p == '/' ) p++; // https:// ?
// stop at whitespace or \0
for ( ; *p && ! is_wspace_a(*p) ; p++ );
// that's the length of it
m_squidProxiedUrlLen = p - m_squidProxiedUrl;
}
else if ( m_requestType == RT_CONNECT ) {
m_isSquidProxyRequest = true;
// set url parms for it
m_squidProxiedUrl = req + cmdLen + 1;
// usually its like CONNECT diffbot.com:443
char *p = m_squidProxiedUrl;
// stop at whitespace or \0
for ( ; *p && ! is_wspace_a(*p) ; p++ );
// that's the length of it
m_squidProxiedUrlLen = p - m_squidProxiedUrl;
}
// check authentication
char *auth = NULL;
if ( m_isSquidProxyRequest && req )
auth = strstr(req,"Proxy-authorization: Basic ");
//if ( m_isSquidProxyRequest && ! auth ) {
// log("http: no auth in proxy request %s",req);
// g_errno = EBADREQUEST;
// return false;
//}
SafeBuf tmp;
if ( auth ) {
// find end of it
char *p = auth;
for ( ; *p && *p != '\r' && *p != '\n' ; p++ );
tmp.base64Decode ( auth , p - auth );
}
// assume incorrect username/password
bool matched = false;
if ( m_isSquidProxyRequest ) {
// now try to match in g_conf.m_proxyAuth safebuf of
// username:password space-separated list
char *p = g_conf.m_proxyAuth.getBufStart();
// loop over those
for ( ; p && *p ; ) {
// skip initial white space
for ( ; *p && is_wspace_a(*p); p++ );
// skip to end of username:password thing
char *end = p;
for ( ; *end && !is_wspace_a(*end); end++);
// save
char *start = p;
// advance
p = end;
// this is always a match
if ( end-start == 3 && strncmp(start,"*:*",3)==0 ) {
matched = true;
break;
}
// compare now
if ( tmp.length() != end-start )
continue;
if ( strncmp(tmp.getBufStart(),start,end-start))
continue;
// we got a match
matched = true;
break;
}
}
// incorrect username:password?
if ( m_isSquidProxyRequest && ! matched ) {
log("http: bad username:password in proxy request %s",req);
g_errno = EPERMDENIED;
return false;
}
// if proxy request to download a url through us, we are done
if ( m_isSquidProxyRequest ) return true;
bool multipart = false;
if ( m_requestType == 2 ) { // is POST?
char *cd ;
cd = gb_strcasestr(req,"Content-Type: multipart/form-data");
if ( cd ) multipart = true;
}
// . point to the file path
// . skip over the "GET "
int32_t filenameStart = 4 ;
// skip over extra char if it's a "HEAD " request
if ( m_requestType == RT_HEAD || m_requestType == RT_POST )
filenameStart++;
// are we a redirect?
int32_t i = filenameStart;
m_redirLen = 0;
if ( strncmp ( &req[i] , "/?redir=" , 8 ) == 0 ) {
for ( int32_t k = i+8; k<reqLen && m_redirLen<126 ; k++) {
if ( req[k] == '\r' ) break;
if ( req[k] == '\n' ) break;
if ( req[k] == '\t' ) break;
if ( req[k] == ' ' ) break;
m_redir[m_redirLen++] = req[k];
}
}
m_redir[m_redirLen] = '\0';
// find a \n space \r or ? that delimits the filename
for ( i = filenameStart ; i < reqLen ; i++ ) {
if ( is_wspace_a ( req [ i ] ) ) break;
if ( req [ i ] == '?' ) break;
}
// now calc the filename length
m_filenameLen = i - filenameStart;
// return false and set g_errno if it's 0
if ( m_filenameLen <= 0 ) {
log("http: got filenameLen<=0: %s",req);
g_errno = EBADREQUEST;
return false;
}
// . bitch if too big
// . leave room for strcatting "index.html" below
if ( m_filenameLen >= MAX_HTTP_FILENAME_LEN - 10 ) {
log("http: got filenameLen>=max");
g_errno = EBADREQUEST;
return false;
}
// . decode the filename into m_filename and reassign it's length
// . decode %2F to / , etc...
m_filenameLen = urlDecode(m_filename,req+filenameStart,m_filenameLen);
// NULL terminate m_filename
m_filename [ m_filenameLen ] = '\0';
// does it have a file extension AFTER the last / in the filename?
bool hasExtension = false;
for ( int32_t j = m_filenameLen-1 ; j >= 0 ; j-- ) {
if ( m_filename[j] == '.' ) { hasExtension = true; break; }
if ( m_filename[j] == '/' ) break;
}
// if it has no file extension append a /index.html
if ( ! hasExtension && m_filename [ m_filenameLen - 1 ] == '/' ) {
strcat ( m_filename , "index.html" );
m_filenameLen = gbstrlen ( m_filename );
}
// . uses the TcpSocket::m_readBuf
// . if *p was ? then keep going
m_origUrlRequest = origReq + filenameStart;
char *p = origReq + m_filenameLen;
for ( ; *p && ! is_wspace_a(*p) ; p++ );
m_origUrlRequestLen = p - m_origUrlRequest;
// set file offset/size defaults
m_fileOffset = 0;
// -1 means ALL the file from m_fileOffset onwards
m_fileSize = -1;
// "e" points to where the range actually starts, if any
//char *e;
// . TODO: speed up by doing one strstr for Range: and maybe range:
// . do they have a Range: 0-100\n in the mime denoting a partial get?
//char *s = strstr ( req ,"Range:bytes=" );
//e = s + 12;
// try alternate formats
//if ( ! s ) { s = strstr ( req ,"Range: bytes=" ); e = s + 13; }
//if ( ! s ) { s = strstr ( req ,"Range: " ); e = s + 7; }
// parse out the range if we got one
//if ( s ) {
// int32_t x = 0;
// sscanf ( e ,"%"INT32"-%"INT32"" , &m_fileOffset , &x );
// // get all file if range's 2nd number is non-existent
// if ( x == 0 ) m_fileSize = -1;
// else m_fileSize = x - m_fileOffset;
// // ensure legitimacy
// if ( m_fileOffset < 0 ) m_fileOffset = 0;
//}
// reset our hostname
m_hostLen = 0;
// assume request is NOT from local network
//m_isMasterAdmin = false;
m_isLocal = false;
// get the virtual hostname they want to use
char *s = strstr ( req ,"Host:" );
// try alternate formats
if ( ! s ) s = strstr ( req , "host:" );
// must be on its own line, otherwise it's not valid
if ( s && s > req && *(s-1) !='\n' ) s = NULL;
// parse out the host if we got one
if ( s ) {
// skip field name, host:
s += 5;
// skip e to beginning of the host name after "host:"
while ( *s==' ' || *s=='\t' ) s++;
// find end of the host name
char *end = s;
while ( *end && !is_wspace_a(*end) ) end++;
// . now *end should be \0, \n, \r, ' ', ...
// . get host len
m_hostLen = end - s;
// truncate if too big
if ( m_hostLen >= 255 ) m_hostLen = 254;
// copy into hostname
gbmemcpy ( m_host , s , m_hostLen );
}
// NULL terminate it
m_host [ m_hostLen ] = '\0';
// get Referer: field
s = strstr ( req ,"Referer:" );
// find another
if ( ! s ) s = strstr ( req ,"referer:" );
// must be on its own line, otherwise it's not valid
if ( s && s > req && *(s-1) !='\n' ) s = NULL;
// assume no referer
m_refLen = 0;
// parse out the referer if we got one
if ( s ) {
// skip field name, referer:
s += 8;
// skip e to beginning of the host name after ':'
while ( *s==' ' || *s=='\t' ) s++;
// find end of the host name
char *end = s;
while ( *end && !is_wspace_a(*end) ) end++;
// . now *end should be \0, \n, \r, ' ', ...
// . get len
m_refLen = end - s;
// truncate if too big
if ( m_refLen >= 255 ) m_refLen = 254;
// copy into m_ref
gbmemcpy ( m_ref , s , m_refLen );
}
// NULL terminate it
m_ref [ m_refLen ] = '\0';
// get User-Agent: field
s = strstr ( req ,"User-Agent:" );
// find another
if ( ! s ) s = strstr ( req ,"user-agent:" );
// must be on its own line, otherwise it's not valid
if ( s && s > req && *(s-1) !='\n' ) s = NULL;
// assume empty
int32_t len = 0;
// parse out the referer if we got one
if ( s ) {
// skip field name, referer:
s += 11;
// skip e to beginning of the host name after ':'
while ( *s==' ' || *s=='\t' ) s++;
// find end of the agent name
char *end = s;
while ( *end && *end!='\n' && *end!='\r' ) end++;
// . now *end should be \0, \n, \r, ' ', ...
// . get agent len
len = end - s;
// truncate if too big
if ( len > 127 ) len = 127;
// copy into m_userAgent
gbmemcpy ( m_userAgent , s , len );
}
// NULL terminate it
m_userAgent [ len ] = '\0';
m_isMSIE = false;
if ( strstr ( m_userAgent , "MSIE" ) )
m_isMSIE = true;
// get Cookie: field
s = strstr ( req, "Cookie:" );
// find another
if ( !s ) s = strstr ( req, "cookie:" );
// must be on its own line, otherwise it's not valid
if ( s && s > req && *(s-1) != '\n' ) s = NULL;
// assume empty
// m_cookieBufLen = 0;
m_cookiePtr = s;
// parse out the cookie if we got one
if ( s ) {
// skip field name, Cookie:
s += 7;
// skip s to beginning of cookie after ':'
while ( *s == ' ' || *s == '\t' ) s++;
// find end of the cookie
char *end = s;
while ( *end && *end != '\n' && *end != '\r' ) end++;
// save length
m_cookieLen = end - m_cookiePtr;
// get cookie len
//m_cookieBufLen = end - s;
// trunc if too big
//if (m_cookieBufLen > 1023) m_cookieBufLen = 1023;
// copy into m_cookieBuf
//gbmemcpy(m_cookieBuf, s, m_cookieBufLen);
}
// NULL terminate it
if ( m_cookiePtr ) m_cookiePtr[m_cookieLen] = '\0';
//m_cookieBuf[m_cookieBufLen] = '\0';
// convert every '&' in cookie to a \0 for parsing the fields
// for ( int32_t j = 0 ; j < m_cookieBufLen ; j++ )
// if ( m_cookieBuf[j] == '&' ) m_cookieBuf[j] = '\0';
// mark it as cgi if it has a ?
bool isCgi = ( req [ i ] == '?' ) ;
// reset m_filename length to exclude the ?* stuff
if ( isCgi ) {
// skip over the '?'
i++;
// find a space the delmits end of cgi
int32_t j;
for ( j = i; j < reqLen; j++) if (is_wspace_a(req[j])) break;
// now add it
if ( ! addCgi ( &req[i] , j-i ) ) return false;
// update i
i = j;
}
// . set path ptrs
// . the whole /cgi/14.cgi?coll=xxx&..... thang
m_path = req + filenameStart;
m_plen = i - filenameStart;
// we're local if hostname is 192.168.[0|1].y
//if ( strncmp(iptoa(sock->m_ip),"192.168.1.",10) == 0) {
// m_isMasterAdmin = true; m_isLocal = true; }
//if ( strncmp(iptoa(sock->m_ip),"192.168.0.",10) == 0) {
// m_isMasterAdmin = true; m_isLocal = true; }
//if(strncmp(iptoa(sock->m_ip),"192.168.1.",10) == 0) m_isLocal = true;
//if(strncmp(iptoa(sock->m_ip),"192.168.0.",10) == 0) m_isLocal = true;
if ( sock && strncmp(iptoa(sock->m_ip),"192.168.",8) == 0)
m_isLocal = true;
if ( sock && strncmp(iptoa(sock->m_ip),"10.",3) == 0)
m_isLocal = true;
// steve cook's comcast at home:
// if ( sock && strncmp(iptoa(sock->m_ip),"68.35.100.143",13) == 0)
// m_isLocal = true;
// procog's ip
// if ( sock && strncmp(iptoa(sock->m_ip),"216.168.36.21",13) == 0)
// m_isLocal = true;
// diffbot comcast
if ( sock && strncmp(iptoa(sock->m_ip),"50.168.3.61",11) == 0)
m_isLocal = true;
// matt comcast
if ( sock && strncmp(iptoa(sock->m_ip),"75.160.49.8",11) == 0)
m_isLocal = true;
// matt comcast #2
if ( sock && strncmp(iptoa(sock->m_ip),"69.181.136.143",14) == 0)
m_isLocal = true;
// titan
if ( sock && strncmp(iptoa(sock->m_ip),"66.162.42.131",13) == 0)
m_isLocal = true;
// gotta scan all ips in hosts.conf as well...
// if we are coming from any of our own hosts.conf c blocks
// consider ourselves local
uint32_t last = 0;
for ( int32_t i = 0 ; i < g_hostdb.m_numHosts ; i++ ) {
Host *h = g_hostdb.getHost(i);
// save time with this check
if ( h->m_ip == last ) continue;
// update it
last = h->m_ip;
// returns number of top bytes in comon
int32_t nt = ipCmp ( sock->m_ip , h->m_ip );
// at least be in the same c-block as a host in hosts.conf
if ( nt < 3 ) continue;
m_isLocal = true;
break;
}
// connectips/adminips
// for ( int32_t i = 0 ; i < g_conf.m_numConnectIps ; i++ ) {
// if ( sock->m_ip != g_conf.m_connectIps[i] ) continue;
// m_isLocal = true;
// break;
// }
// roadrunner ip
// if ( sock && strncmp(iptoa(sock->m_ip),"66.162.42.131",13) == 0)
// m_isLocal = true;
// cnsp ip
//if ( sock && strncmp(iptoa(sock->m_ip),"67.130.216.27",13) == 0)
// m_isLocal = true;
// emily parker
//if ( sock && strncmp(iptoa(sock->m_ip),"69.92.68.202",12) == 0)
//m_isLocal = true;
// 127.0.0.1
if ( sock && sock->m_ip == 16777343 )
m_isLocal = true;
// steve cook's webserver
//if ( sock && strncmp(iptoa(sock->m_ip),"216.168.36.21",13) == 0)
// m_isLocal = true;
// . also if we're coming from lenny at my house consider it local
// . this is a security risk, however... TODO: FIX!!!
//if ( sock->m_ip == atoip ("68.35.105.199" , 13 ) ) m_isMasterAdmin = true;
// . TODO: now add any cgi data from a POST.....
// . look after the mime
//char *d = NULL;
// check for body if it was a POST request
//if ( m_requestType == RT_POST ) d = strstr ( req , "\r\n\r\n" );
// now put d's char back, just in case... does it really matter?
if ( d ) *d = dc;
// return true now if no cgi stuff to parse
if ( d ) {
char *post = d + 4;
int32_t postLen = reqLen-(d+4-req) ;
// post sometimes has a \r or\n after it
while ( postLen > 0 && post[postLen-1]=='\r' ) postLen--;
// add it to m_cgiBuf, filter and everything
if ( ! addCgi ( post , postLen ) ) return false;
}
// sometimes i don't want to be admin
//if ( getLong ( "admin" , 1 ) == 0 ) m_isMasterAdmin = false;
// success
/////
// Handle Extra parms...
char *ep = g_conf.m_extraParms;
char *epend = g_conf.m_extraParms + g_conf.m_extraParmsLen;
char *qstr = m_cgiBuf;
int32_t qlen = m_cgiBufLen;
while (ep < epend){
char buf[AUTOBAN_TEXT_SIZE];
int32_t bufLen = 0;
// get next substring
while (*ep && ep < epend && *ep != ' ' && *ep != '\n'){
buf[bufLen++] = *ep++;
}
// skip whitespace
while (*ep && ep < epend && *ep == ' '){
ep++;
}
// null terminate
buf[bufLen] = '\0';
// No match
if (!bufLen ||
!strnstr2(qstr, qlen, buf)){