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@ -103,89 +103,101 @@ const char* http_header(struct http_data* r,const char* h)
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void httpresponse(struct http_data* h,int64 s)
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{
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char* c;
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char *c, *d, *data;
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array_cat0(&h->r);
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c = array_start(&h->r);
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if (byte_diff(c,4,"GET "))
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{
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if (byte_diff(c,4,"GET ")) {
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e400:
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httperror(h,"400 Invalid Request","This server only understands GET.");
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goto bailout;
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}
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else
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{
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char *d, *data;
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// expect 'GET /uri?nnbjhg HTTP/1.*'
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c+=4;
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for (d=c; *d!=' '&&*d!='\t'&&*d!='\n'&&*d!='\r'; ++d) ;
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if (*d!=' ') goto e400;
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*d=0;
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if (c[0]!='/') goto e404;
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while (c[1]=='/') ++c;
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data = c;
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switch( scan_urlencoded_query( &c, data, SCAN_PATH ) ) {
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case 6: /* scrape ? */
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if (!byte_diff(c,6,"scrape"))
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goto e404;
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break;
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case 9:
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if( !byte_diff(c,8,"announce"))
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goto e404;
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else {
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// info_hash, left, port, numwant, compact
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struct ot_peer peer;
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byte_copy( peer.ip, 4, h->ip );
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peer.port = 6881;
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while( 1 ) {
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// expect 'GET /uri?nnbjhg HTTP/1.*'
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c+=4;
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for (d=c; *d!=' '&&*d!='\t'&&*d!='\n'&&*d!='\r'; ++d) ;
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if (*d!=' ') goto e400;
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*d=0;
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if (c[0]!='/') goto e404;
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while (c[1]=='/') ++c;
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data = c;
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switch( scan_urlencoded_query( &c, data, SCAN_PATH ) ) {
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case 0:
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e404:
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httperror(h,"404 Not Found","No such file or directory.");
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goto bailout;
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case 6: /* scrape ? */
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if (!byte_diff(c,6,"scrape"))
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goto e404;
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break;
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case 9:
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if( !byte_diff(c,8,"announce"))
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goto e404;
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else {
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// info_hash, left, port, numwant, compact
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struct ot_peer peer;
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ot_hash *hash = NULL;
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byte_copy( peer.ip, 4, h->ip );
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peer.port = 6881;
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while( 1 ) {
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data = c;
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switch( scan_urlencoded_query( &c, data, SCAN_SEARCHPATH_PARAM ) ) {
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case -1: /* error */
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goto e404;
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case 4:
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if(!byte_diff(c,4,"port"))
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/* scan int */ c;
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else if(!byte_diff(c,4,"left"))
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/* scan int */ c;
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break;
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case 7:
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if(!byte_diff(c,7,"numwant"))
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/* scan int */ c;
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else if(!byte_diff(c,7,"compact"))
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/* scan flag */ c;
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break;
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case 9: /* info_hash= */
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if(!byte_diff(c,9,"info_hash")) {
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data = c;
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switch( scan_urlencoded_query( &c, data, SCAN_SEARCHPATH_PARAM ) ) {
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case -1: /* error */
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/* ignore this, when we have less than 20 bytes */
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switch( scan_urlencoded_query( &c, data, SCAN_SEARCHPATH_VALUE ) )
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case -1:
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httperror(h,"404 Not Found","No such file or directory.");
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goto e404;
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case 4:
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if(!byte_diff(c,4,"port"))
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/* scan int */ c;
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else if(!byte_diff(c,4,"left"))
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/* scan int */ c;
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goto bailout;
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case 20:
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hash = (ot_hash*)data;
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break;
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case 7:
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if(!byte_diff(c,7,"numwant"))
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/* scan int */ c;
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else if(!byte_diff(c,7,"compact"))
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/* scan flag */ c;
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break;
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case 9: /* info_hash */
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if(!byte_diff(c,9,"info_hash")) c;
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/* scan 20 bytes */
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break;
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}
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default:
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continue;
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}
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break;
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}
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break;
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default: /* neither scrape nor announce */
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httperror(h,"404 Not Found","No such file or directory.");
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goto e404;
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}
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c=h->hdrbuf=(char*)malloc(500);
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c+=fmt_str(c,"HTTP/1.1 Coming Up\r\nContent-Type: text/plain");
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c+=fmt_str(c,"\r\nContent-Length: ");
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/* ANSWER SIZE*/
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c+=fmt_ulonglong(c, 100 );
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c+=fmt_str(c,"\r\nLast-Modified: ");
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/* MODIFY DATE
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c+=fmt_httpdate(c,s.st_mtime); */
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c+=fmt_str(c,"\r\nConnection: close\r\n\r\n");
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iob_addbuf(&h->iob,h->hdrbuf,c - h->hdrbuf);
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iob_addbuf(&h->iob,tracker_answer, tracker_answer_size);
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}
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break;
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default: /* neither scrape nor announce */
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httperror(h,"404 Not Found","No such file or directory.");
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goto bailout;
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}
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e404:
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c=h->hdrbuf=(char*)malloc(500);
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c+=fmt_str(c,"HTTP/1.1 Coming Up\r\nContent-Type: text/plain");
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c+=fmt_str(c,"\r\nContent-Length: ");
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/* ANSWER SIZE*/
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c+=fmt_ulonglong(c, 100 );
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c+=fmt_str(c,"\r\nLast-Modified: ");
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/* MODIFY DATE
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c+=fmt_httpdate(c,s.st_mtime); */
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c+=fmt_str(c,"\r\nConnection: close\r\n\r\n");
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iob_addbuf(&h->iob,h->hdrbuf,c - h->hdrbuf);
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iob_addbuf(&h->iob,tracker_answer, tracker_answer_size);
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bailout:
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io_dontwantread(s);
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io_wantwrite(s);
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}
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