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-rw-r--r--ot_http.c830
1 files changed, 491 insertions, 339 deletions
diff --git a/ot_http.c b/ot_http.c
index 0e3cc29..a87a02e 100644
--- a/ot_http.c
+++ b/ot_http.c
@@ -4,506 +4,653 @@
4 $id$ */ 4 $id$ */
5 5
6/* System */ 6/* System */
7#include <sys/types.h> 7#define _GNU_SOURCE
8#include <arpa/inet.h> 8#include <arpa/inet.h>
9#include <stdlib.h> 9#include <pthread.h>
10#include <stdio.h> 10#include <stdio.h>
11#include <stdlib.h>
11#include <string.h> 12#include <string.h>
13#include <sys/types.h>
12#include <unistd.h> 14#include <unistd.h>
13#include <pthread.h>
14 15
15/* Libowfat */ 16/* Libowfat */
16#include "byte.h"
17#include "array.h" 17#include "array.h"
18#include "byte.h"
19#include "case.h"
18#include "iob.h" 20#include "iob.h"
19#include "ip6.h" 21#include "ip6.h"
20#include "scan.h" 22#include "scan.h"
21#include "case.h"
22 23
23/* Opentracker */ 24/* Opentracker */
24#include "trackerlogic.h" 25#include "ot_accesslist.h"
25#include "ot_mutex.h" 26#include "ot_fullscrape.h"
26#include "ot_http.h" 27#include "ot_http.h"
27#include "ot_iovec.h" 28#include "ot_iovec.h"
28#include "scan_urlencoded_query.h" 29#include "ot_mutex.h"
29#include "ot_fullscrape.h"
30#include "ot_stats.h" 30#include "ot_stats.h"
31#include "ot_accesslist.h" 31#include "scan_urlencoded_query.h"
32#include "trackerlogic.h"
33
34#ifdef WANT_NO_AUTO_FREE
35#define OT_IOB_INIT(B) (bzero(B, sizeof(io_batch)), 0)
36#else
37#define OT_IOB_INIT(B) iob_init_autofree(B, 0)
38#endif
32 39
33#define OT_MAXMULTISCRAPE_COUNT 64 40#define OT_MAXMULTISCRAPE_COUNT 64
41#define OT_BATCH_LIMIT (1024 * 1024 * 16)
34extern char *g_redirecturl; 42extern char *g_redirecturl;
35 43
36char *g_stats_path; 44char *g_stats_path;
37ssize_t g_stats_path_len; 45ssize_t g_stats_path_len;
38 46
39enum { 47enum { SUCCESS_HTTP_HEADER_LENGTH = 80, SUCCESS_HTTP_SIZE_OFF = 17 };
40 SUCCESS_HTTP_HEADER_LENGTH = 80,
41 SUCCESS_HTTP_HEADER_LENGTH_CONTENT_ENCODING = 32,
42 SUCCESS_HTTP_SIZE_OFF = 17 };
43 48
44static void http_senddata( const int64 sock, struct ot_workstruct *ws ) { 49static void http_senddata(const int64 sock, struct ot_workstruct *ws) {
45 struct http_data *cookie = io_getcookie( sock ); 50 struct http_data *cookie = io_getcookie(sock);
46 ssize_t written_size; 51 ssize_t written_size;
47 52
48 if( !cookie ) { io_close(sock); return; } 53 if (!cookie) {
54 io_close(sock);
55 return;
56 }
49 57
50 /* whoever sends data is not interested in its input-array */ 58 /* whoever sends data is not interested in its input-array */
51 if( ws->keep_alive && ws->header_size != ws->request_size ) { 59 if (ws->keep_alive && ws->header_size != ws->request_size) {
52 size_t rest = ws->request_size - ws->header_size; 60 size_t rest = ws->request_size - ws->header_size;
53 if( array_start(&cookie->request) ) { 61 if (array_start(&cookie->request)) {
54 memmove( array_start(&cookie->request), ws->request + ws->header_size, rest ); 62 memmove(array_start(&cookie->request), ws->request + ws->header_size, rest);
55 array_truncate( &cookie->request, 1, rest ); 63 array_truncate(&cookie->request, 1, rest);
56 } else 64 } else
57 array_catb(&cookie->request, ws->request + ws->header_size, rest ); 65 array_catb(&cookie->request, ws->request + ws->header_size, rest);
58 } else 66 } else
59 array_reset( &cookie->request ); 67 array_reset(&cookie->request);
60 68
61 written_size = write( sock, ws->reply, ws->reply_size ); 69 written_size = write(sock, ws->reply, ws->reply_size);
62 if( ( written_size < 0 ) || ( ( written_size == ws->reply_size ) && !ws->keep_alive ) ) { 70 if ((written_size < 0) || ((written_size == ws->reply_size) && !ws->keep_alive)) {
63 array_reset( &cookie->request ); 71 array_reset(&cookie->request);
64 free( cookie ); io_close( sock ); return; 72 free(cookie);
73 io_close(sock);
74 return;
65 } 75 }
66 76
67 if( written_size < ws->reply_size ) { 77 if (written_size < ws->reply_size) {
68 char * outbuf; 78 char *outbuf;
69 tai6464 t; 79 tai6464 t;
70 80
71 if( !( outbuf = malloc( ws->reply_size - written_size ) ) ) { 81 if (!(outbuf = malloc(ws->reply_size - written_size))) {
72 array_reset( &cookie->request ); 82 array_reset(&cookie->request);
73 free(cookie); io_close( sock ); 83 free(cookie);
84 io_close(sock);
74 return; 85 return;
75 } 86 }
76 87
77 memcpy( outbuf, ws->reply + written_size, ws->reply_size - written_size ); 88 memcpy(outbuf, ws->reply + written_size, ws->reply_size - written_size);
78 iob_addbuf_free( &cookie->batch, outbuf, ws->reply_size - written_size ); 89 if (!cookie->batch) {
90 cookie->batch = malloc(sizeof(io_batch));
91 if (!cookie->batch || OT_IOB_INIT(cookie->batch) == -1) {
92 free(cookie->batch);
93 free(outbuf);
94 array_reset(&cookie->request);
95 free(cookie);
96 io_close(sock);
97 return;
98 }
99
100 cookie->batches = 1;
101 }
102
103 iob_addbuf_free(cookie->batch, outbuf, ws->reply_size - written_size);
79 104
80 /* writeable short data sockets just have a tcp timeout */ 105 /* writeable short data sockets just have a tcp timeout */
81 if( !ws->keep_alive ) { 106 if (!ws->keep_alive) {
82 taia_uint( &t, 0 ); io_timeout( sock, t ); 107 taia_uint(&t, 0);
83 io_dontwantread( sock ); 108 io_timeout(sock, t);
109 io_dontwantread(sock);
84 } 110 }
85 io_wantwrite( sock ); 111 io_wantwrite(sock);
86 } 112 }
87} 113}
88 114
89#define HTTPERROR_302 return http_issue_error( sock, ws, CODE_HTTPERROR_302 ) 115#define HTTPERROR_302 return http_issue_error(sock, ws, CODE_HTTPERROR_302)
90#define HTTPERROR_400 return http_issue_error( sock, ws, CODE_HTTPERROR_400 ) 116#define HTTPERROR_400 return http_issue_error(sock, ws, CODE_HTTPERROR_400)
91#define HTTPERROR_400_PARAM return http_issue_error( sock, ws, CODE_HTTPERROR_400_PARAM ) 117#define HTTPERROR_400_PARAM return http_issue_error(sock, ws, CODE_HTTPERROR_400_PARAM)
92#define HTTPERROR_400_COMPACT return http_issue_error( sock, ws, CODE_HTTPERROR_400_COMPACT ) 118#define HTTPERROR_400_COMPACT return http_issue_error(sock, ws, CODE_HTTPERROR_400_COMPACT)
93#define HTTPERROR_400_DOUBLEHASH return http_issue_error( sock, ws, CODE_HTTPERROR_400_PARAM ) 119#define HTTPERROR_400_DOUBLEHASH return http_issue_error(sock, ws, CODE_HTTPERROR_400_PARAM)
94#define HTTPERROR_402_NOTMODEST return http_issue_error( sock, ws, CODE_HTTPERROR_402_NOTMODEST ) 120#define HTTPERROR_402_NOTMODEST return http_issue_error(sock, ws, CODE_HTTPERROR_402_NOTMODEST)
95#define HTTPERROR_403_IP return http_issue_error( sock, ws, CODE_HTTPERROR_403_IP ) 121#define HTTPERROR_403_IP return http_issue_error(sock, ws, CODE_HTTPERROR_403_IP)
96#define HTTPERROR_404 return http_issue_error( sock, ws, CODE_HTTPERROR_404 ) 122#define HTTPERROR_404 return http_issue_error(sock, ws, CODE_HTTPERROR_404)
97#define HTTPERROR_500 return http_issue_error( sock, ws, CODE_HTTPERROR_500 ) 123#define HTTPERROR_500 return http_issue_error(sock, ws, CODE_HTTPERROR_500)
98ssize_t http_issue_error( const int64 sock, struct ot_workstruct *ws, int code ) { 124ssize_t http_issue_error(const int64 sock, struct ot_workstruct *ws, int code) {
99 char *error_code[] = { "302 Found", "400 Invalid Request", "400 Invalid Request", "400 Invalid Request", "402 Payment Required", 125 char *error_code[] = {"302 Found", "400 Invalid Request", "400 Invalid Request", "400 Invalid Request", "402 Payment Required",
100 "403 Not Modest", "403 Access Denied", "404 Not Found", "500 Internal Server Error" }; 126 "403 Not Modest", "403 Access Denied", "404 Not Found", "500 Internal Server Error"};
101 char *title = error_code[code]; 127 char *title = error_code[code];
102 128
103 ws->reply = ws->outbuf; 129 ws->reply = ws->outbuf;
104 if( code == CODE_HTTPERROR_302 ) 130 if (code == CODE_HTTPERROR_302)
105 ws->reply_size = snprintf( ws->reply, G_OUTBUF_SIZE, "HTTP/1.0 302 Found\r\nContent-Length: 0\r\nLocation: %s\r\n\r\n", g_redirecturl ); 131 ws->reply_size = snprintf(ws->reply, G_OUTBUF_SIZE, "HTTP/1.0 302 Found\r\nContent-Length: 0\r\nLocation: %s\r\n\r\n", g_redirecturl);
106 else 132 else
107 ws->reply_size = snprintf( ws->reply, G_OUTBUF_SIZE, "HTTP/1.0 %s\r\nContent-Type: text/html\r\nContent-Length: %zd\r\n\r\n<title>%s</title>\n", title, strlen(title)+16-4,title+4); 133 ws->reply_size = snprintf(ws->reply, G_OUTBUF_SIZE, "HTTP/1.0 %s\r\nContent-Type: text/html\r\nContent-Length: %zd\r\n\r\n<title>%s</title>\n", title,
134 strlen(title) + 16 - 4, title + 4);
108 135
109#ifdef _DEBUG_HTTPERROR 136#ifdef _DEBUG_HTTPERROR
110 fprintf( stderr, "DEBUG: invalid request was: %s\n", ws->debugbuf ); 137 fprintf(stderr, "DEBUG: invalid request was: %s\n", ws->debugbuf);
111#endif 138#endif
112 stats_issue_event( EVENT_FAILED, FLAG_TCP, code ); 139 stats_issue_event(EVENT_FAILED, FLAG_TCP, code);
113 http_senddata( sock, ws ); 140 http_senddata(sock, ws);
114 return ws->reply_size = -2; 141 return ws->reply_size = -2;
115} 142}
116 143
117ssize_t http_sendiovecdata( const int64 sock, struct ot_workstruct *ws, int iovec_entries, struct iovec *iovector ) { 144ssize_t http_sendiovecdata(const int64 sock, struct ot_workstruct *ws, int iovec_entries, struct iovec *iovector, int is_partial) {
118 struct http_data *cookie = io_getcookie( sock ); 145 struct http_data *cookie = io_getcookie(sock);
119 char *header; 146 io_batch *current;
120 int i; 147 char *header;
121 size_t header_size, size = iovec_length( &iovec_entries, &iovector ); 148 const char *encoding = "";
122 tai6464 t; 149 int i;
150 size_t header_size, size = iovec_length(&iovec_entries, (const struct iovec **)&iovector);
151 tai6464 t;
123 152
124 /* No cookie? Bad socket. Leave. */ 153 /* No cookie? Bad socket. Leave. */
125 if( !cookie ) { 154 if (!cookie) {
126 iovec_free( &iovec_entries, &iovector ); 155 iovec_free(&iovec_entries, &iovector);
127 HTTPERROR_500; 156 HTTPERROR_500;
128 } 157 }
129 158
130 /* If this socket collected request in a buffer, free it now */ 159 /* If this socket collected request in a buffer, free it now */
131 array_reset( &cookie->request ); 160 array_reset(&cookie->request);
132 161
133 /* If we came here, wait for the answer is over */ 162 /* If we came here, wait for the answer is over */
134 cookie->flag &= ~STRUCT_HTTP_FLAG_WAITINGFORTASK; 163 if (cookie->flag & STRUCT_HTTP_FLAG_WAITINGFORTASK) {
135 164 io_dontwantread(sock);
136 /* Our answers never are 0 vectors. Return an error. */ 165 cookie->flag &= ~STRUCT_HTTP_FLAG_WAITINGFORTASK;
137 if( !iovec_entries ) {
138 HTTPERROR_500;
139 }
140
141 /* Prepare space for http header */
142 header = malloc( SUCCESS_HTTP_HEADER_LENGTH + SUCCESS_HTTP_HEADER_LENGTH_CONTENT_ENCODING );
143 if( !header ) {
144 iovec_free( &iovec_entries, &iovector );
145 HTTPERROR_500;
146 } 166 }
147 167
148 if( cookie->flag & STRUCT_HTTP_FLAG_GZIP ) 168 if (iovec_entries) {
149 header_size = sprintf( header, "HTTP/1.0 200 OK\r\nContent-Type: text/plain\r\nContent-Encoding: gzip\r\nContent-Length: %zd\r\n\r\n", size ); 169
150 else if( cookie->flag & STRUCT_HTTP_FLAG_BZIP2 ) 170 if (cookie->flag & STRUCT_HTTP_FLAG_ZSTD)
151 header_size = sprintf( header, "HTTP/1.0 200 OK\r\nContent-Type: text/plain\r\nContent-Encoding: bzip2\r\nContent-Length: %zd\r\n\r\n", size ); 171 encoding = "Content-Encoding: zstd\r\n";
152 else 172 else if (cookie->flag & STRUCT_HTTP_FLAG_GZIP)
153 header_size = sprintf( header, "HTTP/1.0 200 OK\r\nContent-Type: text/plain\r\nContent-Length: %zd\r\n\r\n", size ); 173 encoding = "Content-Encoding: gzip\r\n";
174 else if (cookie->flag & STRUCT_HTTP_FLAG_BZIP2)
175 encoding = "Content-Encoding: bzip2\r\n";
176
177 if (!(cookie->flag & STRUCT_HTTP_FLAG_CHUNKED))
178 header_size = asprintf(&header, "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\n%sContent-Length: %zd\r\n\r\n", encoding, size);
179 else {
180 if (!(cookie->flag & STRUCT_HTTP_FLAG_CHUNKED_IN_TRANSFER)) {
181 header_size =
182 asprintf(&header, "HTTP/1.1 200 OK\r\nContent-Type: application/octet-stream\r\n%sTransfer-Encoding: chunked\r\n\r\n%zx\r\n", encoding, size);
183 cookie->flag |= STRUCT_HTTP_FLAG_CHUNKED_IN_TRANSFER;
184 } else
185 header_size = asprintf(&header, "%zx\r\n", size);
186 }
187 if (!header) {
188 iovec_free(&iovec_entries, &iovector);
189 HTTPERROR_500;
190 }
154 191
155 iob_reset( &cookie->batch ); 192 if (!cookie->batch) {
156 iob_addbuf_free( &cookie->batch, header, header_size ); 193 cookie->batch = malloc(sizeof(io_batch));
194 if (!cookie->batch || OT_IOB_INIT(cookie->batch) == -1) {
195 free(cookie->batch);
196 free(header);
197 iovec_free(&iovec_entries, &iovector);
198 HTTPERROR_500;
199 }
200 cookie->batches = 1;
201 }
202 current = cookie->batch + cookie->batches - 1;
203 iob_addbuf_free(current, header, header_size);
204
205 /* Split huge iovectors into separate io_batches */
206 for (i = 0; i < iovec_entries; ++i) {
207 /* If the current batch's limit is reached, try to reallocate a new batch to work on */
208 if (current->bytesleft > OT_BATCH_LIMIT) {
209 io_batch *new_batch = realloc(cookie->batch, (cookie->batches + 1) * sizeof(io_batch));
210 if (new_batch) {
211 cookie->batch = new_batch;
212 if (OT_IOB_INIT(current) != -1)
213 current = cookie->batch + cookie->batches++;
214 }
215 }
216 iob_addbuf_free(current, iovector[i].iov_base, iovector[i].iov_len);
217 }
218 free(iovector);
219 if (cookie->flag & STRUCT_HTTP_FLAG_CHUNKED_IN_TRANSFER)
220 iob_addbuf(current, "\r\n", 2);
221 }
157 222
158 /* Will move to ot_iovec.c */ 223 if ((cookie->flag & STRUCT_HTTP_FLAG_CHUNKED_IN_TRANSFER) && cookie->batch && !is_partial) {
159 for( i=0; i<iovec_entries; ++i ) 224 current = cookie->batch + cookie->batches - 1;
160 iob_addbuf_munmap( &cookie->batch, iovector[i].iov_base, iovector[i].iov_len ); 225 iob_addbuf(current, "0\r\n\r\n", 5);
161 free( iovector ); 226 cookie->flag &= ~STRUCT_HTTP_FLAG_CHUNKED_IN_TRANSFER;
227 }
162 228
163 /* writeable sockets timeout after 10 minutes */ 229 /* writeable sockets timeout after 10 minutes */
164 taia_now( &t ); taia_addsec( &t, &t, OT_CLIENT_TIMEOUT_SEND ); 230 taia_now(&t);
165 io_timeout( sock, t ); 231 taia_addsec(&t, &t, OT_CLIENT_TIMEOUT_SEND);
166 io_dontwantread( sock ); 232 io_timeout(sock, t);
167 io_wantwrite( sock ); 233 io_wantwrite(sock);
168 return 0; 234 return 0;
169} 235}
170 236
171static ssize_t http_handle_stats( const int64 sock, struct ot_workstruct *ws, char *read_ptr ) { 237static ssize_t http_handle_stats(const int64 sock, struct ot_workstruct *ws, char *read_ptr) {
172static const ot_keywords keywords_main[] = 238 static const ot_keywords keywords_main[] = {{"mode", 1}, {"format", 2}, {"info_hash", 3}, {NULL, -3}};
173 { { "mode", 1 }, {"format", 2 }, { NULL, -3 } }; 239 static const ot_keywords keywords_mode[] = {{"peer", TASK_STATS_PEERS},
174static const ot_keywords keywords_mode[] = 240 {"conn", TASK_STATS_CONNS},
175 { { "peer", TASK_STATS_PEERS }, { "conn", TASK_STATS_CONNS }, { "scrp", TASK_STATS_SCRAPE }, { "udp4", TASK_STATS_UDP }, { "tcp4", TASK_STATS_TCP }, 241 {"scrp", TASK_STATS_SCRAPE},
176 { "busy", TASK_STATS_BUSY_NETWORKS }, { "torr", TASK_STATS_TORRENTS }, { "fscr", TASK_STATS_FULLSCRAPE }, 242 {"udp4", TASK_STATS_UDP},
177 { "s24s", TASK_STATS_SLASH24S }, { "tpbs", TASK_STATS_TPB }, { "herr", TASK_STATS_HTTPERRORS }, { "completed", TASK_STATS_COMPLETED }, 243 {"tcp4", TASK_STATS_TCP},
178 { "top100", TASK_STATS_TOP100 }, { "top10", TASK_STATS_TOP10 }, { "renew", TASK_STATS_RENEW }, { "syncs", TASK_STATS_SYNCS }, { "version", TASK_STATS_VERSION }, 244 {"busy", TASK_STATS_BUSY_NETWORKS},
179 { "everything", TASK_STATS_EVERYTHING }, { "statedump", TASK_FULLSCRAPE_TRACKERSTATE }, { "fulllog", TASK_STATS_FULLLOG }, 245 {"torr", TASK_STATS_TORRENTS},
180 { "woodpeckers", TASK_STATS_WOODPECKERS}, 246 {"fscr", TASK_STATS_FULLSCRAPE},
247 {"s24s", TASK_STATS_SLASH24S},
248 {"tpbs", TASK_STATS_TPB},
249 {"herr", TASK_STATS_HTTPERRORS},
250 {"completed", TASK_STATS_COMPLETED},
251 {"top100", TASK_STATS_TOP100},
252 {"top10", TASK_STATS_TOP10},
253 {"renew", TASK_STATS_RENEW},
254 {"syncs", TASK_STATS_SYNCS},
255 {"version", TASK_STATS_VERSION},
256 {"everything", TASK_STATS_EVERYTHING},
257 {"statedump", TASK_FULLSCRAPE_TRACKERSTATE},
258 {"fulllog", TASK_STATS_FULLLOG},
259 {"woodpeckers", TASK_STATS_WOODPECKERS},
181#ifdef WANT_LOG_NUMWANT 260#ifdef WANT_LOG_NUMWANT
182 { "numwants", TASK_STATS_NUMWANTS}, 261 {"numwants", TASK_STATS_NUMWANTS},
183#endif 262#endif
184 { NULL, -3 } }; 263 {NULL, -3}};
185static const ot_keywords keywords_format[] = 264 static const ot_keywords keywords_format[] = {{"bin", TASK_FULLSCRAPE_TPB_BINARY}, {"ben", TASK_FULLSCRAPE},
186 { { "bin", TASK_FULLSCRAPE_TPB_BINARY }, { "ben", TASK_FULLSCRAPE }, { "url", TASK_FULLSCRAPE_TPB_URLENCODED }, 265 {"url", TASK_FULLSCRAPE_TPB_URLENCODED}, {"txt", TASK_FULLSCRAPE_TPB_ASCII},
187 { "txt", TASK_FULLSCRAPE_TPB_ASCII }, { "txtp", TASK_FULLSCRAPE_TPB_ASCII_PLUS }, { NULL, -3 } }; 266 {"txtp", TASK_FULLSCRAPE_TPB_ASCII_PLUS}, {NULL, -3}};
188 267
189 int mode = TASK_STATS_PEERS, scanon = 1, format = 0; 268 int mode = TASK_STATS_PEERS, scanon = 1, format = 0;
190 269
191#ifdef WANT_RESTRICT_STATS 270#ifdef WANT_RESTRICT_STATS
192 struct http_data *cookie = io_getcookie( sock ); 271 struct http_data *cookie = io_getcookie(sock);
193 272
194 if( !cookie || !accesslist_isblessed( cookie->ip, OT_PERMISSION_MAY_STAT ) ) 273 if (!cookie || !accesslist_is_blessed(cookie->ip, OT_PERMISSION_MAY_STAT))
195 HTTPERROR_403_IP; 274 HTTPERROR_403_IP;
196#endif 275#endif
197 276
198 while( scanon ) { 277 while (scanon) {
199 switch( scan_find_keywords( keywords_main, &read_ptr, SCAN_SEARCHPATH_PARAM ) ) { 278 switch (scan_find_keywords(keywords_main, &read_ptr, SCAN_SEARCHPATH_PARAM)) {
200 case -2: scanon = 0; break; /* TERMINATOR */ 279 case -2:
201 case -1: HTTPERROR_400_PARAM; /* PARSE ERROR */ 280 scanon = 0;
202 case -3: scan_urlencoded_skipvalue( &read_ptr ); break; 281 break; /* TERMINATOR */
203 case 1: /* matched "mode" */ 282 case -1:
204 if( ( mode = scan_find_keywords( keywords_mode, &read_ptr, SCAN_SEARCHPATH_VALUE ) ) <= 0 ) HTTPERROR_400_PARAM; 283 HTTPERROR_400_PARAM; /* PARSE ERROR */
284 case -3:
285 scan_urlencoded_skipvalue(&read_ptr);
286 break;
287 case 1: /* matched "mode" */
288 if ((mode = scan_find_keywords(keywords_mode, &read_ptr, SCAN_SEARCHPATH_VALUE)) <= 0)
289 HTTPERROR_400_PARAM;
205 break; 290 break;
206 case 2: /* matched "format" */ 291 case 2: /* matched "format" */
207 if( ( format = scan_find_keywords( keywords_format, &read_ptr, SCAN_SEARCHPATH_VALUE ) ) <= 0 ) HTTPERROR_400_PARAM; 292 if ((format = scan_find_keywords(keywords_format, &read_ptr, SCAN_SEARCHPATH_VALUE)) <= 0)
293 HTTPERROR_400_PARAM;
208 break; 294 break;
295 case 3:
296 HTTPERROR_400_PARAM; /* If the stats URL was mistakenly added as announce URL, return a 400 */
209 } 297 }
210 } 298 }
211 299
212#ifdef WANT_FULLSCRAPE 300#ifdef WANT_FULLSCRAPE
213 if( mode == TASK_FULLSCRAPE_TRACKERSTATE ) { 301 if (mode == TASK_FULLSCRAPE_TRACKERSTATE) {
214 format = mode; mode = TASK_STATS_TPB; 302 format = mode;
303 mode = TASK_STATS_TPB;
215 } 304 }
216 305
217 if( mode == TASK_STATS_TPB ) { 306 if (mode == TASK_STATS_TPB) {
218 struct http_data* cookie = io_getcookie( sock ); 307 struct http_data *cookie = io_getcookie(sock);
219 tai6464 t; 308 tai6464 t;
220#ifdef WANT_COMPRESSION_GZIP 309#ifdef WANT_COMPRESSION_GZIP
221 ws->request[ws->request_size] = 0; 310 ws->request[ws->request_size] = 0;
222#ifdef WANT_COMPRESSION_GZIP_ALWAYS 311#ifndef WANT_COMPRESSION_GZIP_ALWAYS
223 if( strstr( read_ptr - 1, "gzip" ) ) { 312 if (strstr(read_ptr - 1, "gzip")) {
224#endif 313#endif
225 cookie->flag |= STRUCT_HTTP_FLAG_GZIP; 314 cookie->flag |= STRUCT_HTTP_FLAG_GZIP;
226 format |= TASK_FLAG_GZIP; 315 format |= TASK_FLAG_GZIP;
227#ifdef WANT_COMPRESSION_GZIP_ALWAYS 316#ifndef WANT_COMPRESSION_GZIP_ALWAYS
228 } 317 }
229#endif 318#endif
230#endif 319#endif
231 /* Pass this task to the worker thread */ 320 /* Pass this task to the worker thread */
232 cookie->flag |= STRUCT_HTTP_FLAG_WAITINGFORTASK; 321 cookie->flag |= STRUCT_HTTP_FLAG_WAITINGFORTASK | STRUCT_HTTP_FLAG_CHUNKED;
233 322
234 /* Clients waiting for us should not easily timeout */ 323 /* Clients waiting for us should not easily timeout */
235 taia_uint( &t, 0 ); io_timeout( sock, t ); 324 taia_uint(&t, 0);
236 fullscrape_deliver( sock, format ); 325 io_timeout(sock, t);
237 io_dontwantread( sock ); 326 fullscrape_deliver(sock, format);
327 io_dontwantread(sock);
238 return ws->reply_size = -2; 328 return ws->reply_size = -2;
239 } 329 }
240#endif 330#endif
241 331
242 /* default format for now */ 332 /* default format for now */
243 if( ( mode & TASK_CLASS_MASK ) == TASK_STATS ) { 333 if ((mode & TASK_CLASS_MASK) == TASK_STATS) {
244 tai6464 t; 334 tai6464 t;
245 /* Complex stats also include expensive memory debugging tools */ 335 /* Complex stats also include expensive memory debugging tools */
246 taia_uint( &t, 0 ); io_timeout( sock, t ); 336 taia_uint(&t, 0);
247 stats_deliver( sock, mode ); 337 io_timeout(sock, t);
338 stats_deliver(sock, mode);
248 return ws->reply_size = -2; 339 return ws->reply_size = -2;
249 } 340 }
250 341
251 /* Simple stats can be answerred immediately */ 342 /* Simple stats can be answerred immediately */
252 return ws->reply_size = return_stats_for_tracker( ws->reply, mode, 0 ); 343 return ws->reply_size = return_stats_for_tracker(ws->reply, mode, 0);
253} 344}
254 345
255#ifdef WANT_MODEST_FULLSCRAPES 346#ifdef WANT_MODEST_FULLSCRAPES
256static pthread_mutex_t g_modest_fullscrape_mutex = PTHREAD_MUTEX_INITIALIZER; 347static pthread_mutex_t g_modest_fullscrape_mutex = PTHREAD_MUTEX_INITIALIZER;
257static ot_vector g_modest_fullscrape_timeouts; 348static ot_vector g_modest_fullscrape_timeouts;
258typedef struct { ot_ip6 ip; ot_time last_fullscrape; } ot_scrape_log; 349typedef struct {
350 ot_ip6 ip;
351 ot_time last_fullscrape;
352} ot_scrape_log;
259#endif 353#endif
260 354
261#ifdef WANT_FULLSCRAPE 355#ifdef WANT_FULLSCRAPE
262static ssize_t http_handle_fullscrape( const int64 sock, struct ot_workstruct *ws ) { 356static ssize_t http_handle_fullscrape(const int64 sock, struct ot_workstruct *ws) {
263 struct http_data* cookie = io_getcookie( sock ); 357 struct http_data *cookie = io_getcookie(sock);
264 int format = 0; 358 int format = 0;
265 tai6464 t; 359 tai6464 t;
266 360
267#ifdef WANT_MODEST_FULLSCRAPES 361#ifdef WANT_MODEST_FULLSCRAPES
268 { 362 {
269 ot_scrape_log this_peer, *new_peer; 363 ot_scrape_log this_peer, *new_peer;
270 int exactmatch; 364 int exactmatch;
271 memcpy( this_peer.ip, cookie->ip, sizeof(ot_ip6)); 365 memcpy(this_peer.ip, cookie->ip, sizeof(ot_ip6));
272 this_peer.last_fullscrape = g_now_seconds; 366 this_peer.last_fullscrape = g_now_seconds;
273 pthread_mutex_lock(&g_modest_fullscrape_mutex); 367 pthread_mutex_lock(&g_modest_fullscrape_mutex);
274 new_peer = vector_find_or_insert( &g_modest_fullscrape_timeouts, &this_peer, sizeof(ot_scrape_log), sizeof(ot_ip6), &exactmatch ); 368 new_peer = vector_find_or_insert(&g_modest_fullscrape_timeouts, &this_peer, sizeof(ot_scrape_log), sizeof(ot_ip6), &exactmatch);
275 if( !new_peer ) { 369 if (!new_peer) {
276 pthread_mutex_unlock(&g_modest_fullscrape_mutex); 370 pthread_mutex_unlock(&g_modest_fullscrape_mutex);
277 HTTPERROR_500; 371 HTTPERROR_500;
278 } 372 }
279 if( exactmatch && ( this_peer.last_fullscrape - new_peer->last_fullscrape ) < OT_MODEST_PEER_TIMEOUT ) { 373 if (exactmatch && (this_peer.last_fullscrape - new_peer->last_fullscrape) < OT_MODEST_PEER_TIMEOUT) {
280 pthread_mutex_unlock(&g_modest_fullscrape_mutex); 374 pthread_mutex_unlock(&g_modest_fullscrape_mutex);
281 HTTPERROR_402_NOTMODEST; 375 HTTPERROR_402_NOTMODEST;
282 } 376 }
283 memcpy( new_peer, &this_peer, sizeof(ot_scrape_log)); 377 memcpy(new_peer, &this_peer, sizeof(ot_scrape_log));
284 pthread_mutex_unlock(&g_modest_fullscrape_mutex); 378 pthread_mutex_unlock(&g_modest_fullscrape_mutex);
285 } 379 }
286#endif 380#endif
287 381
382
383#if defined(WANT_COMPRESSION_GZIP) || defined(WANT_COMPRESSION_ZSTD)
384 ws->request[ws->request_size - 1] = 0;
288#ifdef WANT_COMPRESSION_GZIP 385#ifdef WANT_COMPRESSION_GZIP
289 ws->request[ws->request_size-1] = 0; 386 if (strstr(ws->request, "gzip")) {
290 if( strstr( ws->request, "gzip" ) ) {
291 cookie->flag |= STRUCT_HTTP_FLAG_GZIP; 387 cookie->flag |= STRUCT_HTTP_FLAG_GZIP;
292 format = TASK_FLAG_GZIP; 388 format |= TASK_FLAG_GZIP;
293 stats_issue_event( EVENT_FULLSCRAPE_REQUEST_GZIP, 0, (uintptr_t)cookie->ip ); 389 }
294 } else 390#endif
391#ifdef WANT_COMPRESSION_ZSTD
392 if (strstr(ws->request, "zstd")) {
393 cookie->flag |= STRUCT_HTTP_FLAG_ZSTD;
394 format |= TASK_FLAG_ZSTD;
395 }
396#endif
397
398#if defined(WANT_COMPRESSION_ZSTD) && defined(WANT_COMPRESSION_ZSTD_ALWAYS)
399 cookie->flag |= STRUCT_HTTP_FLAG_ZSTD;
400 format |= TASK_FLAG_ZSTD;
401#endif
402
403#if defined(WANT_COMPRESSION_GZIP) && defined(WANT_COMPRESSION_GZIP_ALWAYS)
404 cookie->flag |= STRUCT_HTTP_FLAG_GZIP;
405 format |= TASK_FLAG_GZIP;
295#endif 406#endif
296 stats_issue_event( EVENT_FULLSCRAPE_REQUEST, 0, (uintptr_t)cookie->ip ); 407#endif
408
409 stats_issue_event(EVENT_FULLSCRAPE_REQUEST, 0, (uintptr_t)cookie->ip);
297 410
298#ifdef _DEBUG_HTTPERROR 411#ifdef _DEBUG_HTTPERROR
299 fprintf( stderr, "%s", ws->debugbuf ); 412 fprintf(stderr, "%s", ws->debugbuf);
300#endif 413#endif
301 414
302 /* Pass this task to the worker thread */ 415 /* Pass this task to the worker thread */
303 cookie->flag |= STRUCT_HTTP_FLAG_WAITINGFORTASK; 416 cookie->flag |= STRUCT_HTTP_FLAG_WAITINGFORTASK | STRUCT_HTTP_FLAG_CHUNKED;
304 /* Clients waiting for us should not easily timeout */ 417 /* Clients waiting for us should not easily timeout */
305 taia_uint( &t, 0 ); io_timeout( sock, t ); 418 taia_uint(&t, 0);
306 fullscrape_deliver( sock, TASK_FULLSCRAPE | format ); 419 io_timeout(sock, t);
307 io_dontwantread( sock ); 420 fullscrape_deliver(sock, TASK_FULLSCRAPE | format);
421 io_dontwantread(sock);
308 return ws->reply_size = -2; 422 return ws->reply_size = -2;
309} 423}
310#endif 424#endif
311 425
312static ssize_t http_handle_scrape( const int64 sock, struct ot_workstruct *ws, char *read_ptr ) { 426static ssize_t http_handle_scrape(const int64 sock, struct ot_workstruct *ws, char *read_ptr) {
313 static const ot_keywords keywords_scrape[] = { { "info_hash", 1 }, { NULL, -3 } }; 427 static const ot_keywords keywords_scrape[] = {{"info_hash", 1}, {NULL, -3}};
314 428
315 ot_hash * multiscrape_buf = (ot_hash*)ws->request; 429 ot_hash *multiscrape_buf = (ot_hash *)ws->request;
316 int scanon = 1, numwant = 0; 430 int scanon = 1, numwant = 0;
317 431
318 /* This is to hack around stupid clients that send "scrape ?info_hash" */ 432 /* This is to hack around stupid clients that send "scrape ?info_hash" */
319 if( read_ptr[-1] != '?' ) { 433 if (read_ptr[-1] != '?') {
320 while( ( *read_ptr != '?' ) && ( *read_ptr != '\n' ) ) ++read_ptr; 434 while ((*read_ptr != '?') && (*read_ptr != '\n'))
321 if( *read_ptr == '\n' ) HTTPERROR_400_PARAM; 435 ++read_ptr;
436 if (*read_ptr == '\n')
437 HTTPERROR_400_PARAM;
322 ++read_ptr; 438 ++read_ptr;
323 } 439 }
324 440
325 while( scanon ) { 441 while (scanon) {
326 switch( scan_find_keywords( keywords_scrape, &read_ptr, SCAN_SEARCHPATH_PARAM ) ) { 442 switch (scan_find_keywords(keywords_scrape, &read_ptr, SCAN_SEARCHPATH_PARAM)) {
327 case -2: scanon = 0; break; /* TERMINATOR */ 443 case -2:
328 default: HTTPERROR_400_PARAM; /* PARSE ERROR */ 444 scanon = 0;
329 case -3: scan_urlencoded_skipvalue( &read_ptr ); break; 445 break; /* TERMINATOR */
330 case 1: /* matched "info_hash" */ 446 default:
447 HTTPERROR_400_PARAM; /* PARSE ERROR */
448 case -3:
449 scan_urlencoded_skipvalue(&read_ptr);
450 break;
451 case 1: /* matched "info_hash" */
331 /* ignore this, when we have less than 20 bytes */ 452 /* ignore this, when we have less than 20 bytes */
332 if( scan_urlencoded_query( &read_ptr, (char*)(multiscrape_buf + numwant++), SCAN_SEARCHPATH_VALUE ) != (ssize_t)sizeof(ot_hash) ) 453 if (scan_urlencoded_query(&read_ptr, (char *)(multiscrape_buf + numwant++), SCAN_SEARCHPATH_VALUE) != (ssize_t)sizeof(ot_hash))
333 HTTPERROR_400_PARAM; 454 HTTPERROR_400_PARAM;
334 break; 455 break;
335 } 456 }
336 } 457 }
337 458
338 /* No info_hash found? Inform user */ 459 /* No info_hash found? Inform user */
339 if( !numwant ) HTTPERROR_400_PARAM; 460 if (!numwant)
461 HTTPERROR_400_PARAM;
340 462
341 /* Limit number of hashes to process */ 463 /* Limit number of hashes to process */
342 if( numwant > OT_MAXMULTISCRAPE_COUNT ) 464 if (numwant > OT_MAXMULTISCRAPE_COUNT)
343 numwant = OT_MAXMULTISCRAPE_COUNT; 465 numwant = OT_MAXMULTISCRAPE_COUNT;
344 466
345 /* Enough for http header + whole scrape string */ 467 /* Enough for http header + whole scrape string */
346 ws->reply_size = return_tcp_scrape_for_torrent( multiscrape_buf, numwant, ws->reply ); 468 ws->reply_size = return_tcp_scrape_for_torrent((const ot_hash *)multiscrape_buf, numwant, ws->reply);
347 stats_issue_event( EVENT_SCRAPE, FLAG_TCP, ws->reply_size ); 469 stats_issue_event(EVENT_SCRAPE, FLAG_TCP, ws->reply_size);
348 return ws->reply_size; 470 return ws->reply_size;
349} 471}
350 472
351#ifdef WANT_LOG_NUMWANT 473#ifdef WANT_LOG_NUMWANT
352 unsigned long long numwants[201]; 474unsigned long long numwants[201];
353#endif 475#endif
354 476
355#if defined( WANT_KEEPALIVE ) || defined( WANT_IP_FROM_PROXY ) 477#if defined(WANT_KEEPALIVE) || defined(WANT_IP_FROM_PROXY)
356static char* http_header( char *data, size_t byte_count, char *header ) { 478static char *http_header(char *data, size_t byte_count, char *header) {
357 size_t i; 479 size_t i;
358 long sl = strlen( header ); 480 long sl = strlen(header);
359 for( i = 0; i + sl + 2 < byte_count; ++i ) { 481 for (i = 0; i + sl + 2 < byte_count; ++i) {
360 if( data[i] != '\n' || data[ i + sl + 1] != ':' ) continue; 482 if (data[i] != '\n' || data[i + sl + 1] != ':')
361 if( !case_equalb( data + i + 1, sl, header ) ) continue; 483 continue;
484 if (!case_equalb(data + i + 1, sl, header))
485 continue;
362 data += i + sl + 2; 486 data += i + sl + 2;
363 while( *data == ' ' || *data == '\t' ) ++data; 487 while (*data == ' ' || *data == '\t')
488 ++data;
364 return data; 489 return data;
365 } 490 }
366 return 0; 491 return 0;
367} 492}
368#endif 493#endif
369 494
370static ot_keywords keywords_announce[] = { { "port", 1 }, { "left", 2 }, { "event", 3 }, { "numwant", 4 }, { "compact", 5 }, { "compact6", 5 }, { "info_hash", 6 }, 495static ot_keywords keywords_announce[] = {{"port", 1}, {"left", 2}, {"event", 3}, {"numwant", 4}, {"compact", 5}, {"compact6", 5}, {"info_hash", 6},
371#ifdef WANT_IP_FROM_QUERY_STRING 496#ifdef WANT_IP_FROM_QUERY_STRING
372{ "ip", 7 }, 497 {"ip", 7},
373#endif 498#endif
374#ifdef WANT_FULLLOG_NETWORKS 499#ifdef WANT_FULLLOG_NETWORKS
375{ "lognet", 8 }, 500 {"lognet", 8},
376#endif 501#endif
377{ "peer_id", 9 }, 502 {"peer_id", 9}, {NULL, -3}};
378{ NULL, -3 } }; 503static ot_keywords keywords_announce_event[] = {{"completed", 1}, {"stopped", 2}, {NULL, -3}};
379static ot_keywords keywords_announce_event[] = { { "completed", 1 }, { "stopped", 2 }, { NULL, -3 } }; 504static ssize_t http_handle_announce(const int64 sock, struct ot_workstruct *ws, char *read_ptr) {
380static ssize_t http_handle_announce( const int64 sock, struct ot_workstruct *ws, char *read_ptr ) {
381 int numwant, tmp, scanon; 505 int numwant, tmp, scanon;
382 unsigned short port = 0; 506 unsigned short port = 0;
383 char *write_ptr; 507 char *write_ptr;
384 ssize_t len; 508 ssize_t len;
385 struct http_data *cookie = io_getcookie( sock ); 509 struct http_data *cookie = io_getcookie(sock);
386 510
387 /* This is to hack around stupid clients that send "announce ?info_hash" */ 511 /* This is to hack around stupid clients that send "announce ?info_hash" */
388 if( read_ptr[-1] != '?' ) { 512 if (read_ptr[-1] != '?') {
389 while( ( *read_ptr != '?' ) && ( *read_ptr != '\n' ) ) ++read_ptr; 513 while ((*read_ptr != '?') && (*read_ptr != '\n'))
390 if( *read_ptr == '\n' ) HTTPERROR_400_PARAM; 514 ++read_ptr;
515 if (*read_ptr == '\n')
516 HTTPERROR_400_PARAM;
391 ++read_ptr; 517 ++read_ptr;
392 } 518 }
393 519
394#ifdef WANT_IP_FROM_PROXY 520#ifdef WANT_IP_FROM_PROXY
395 if( accesslist_isblessed( cookie->ip, OT_PERMISSION_MAY_PROXY ) ) { 521 if (accesslist_is_blessed(cookie->ip, OT_PERMISSION_MAY_PROXY)) {
396 ot_ip6 proxied_ip; 522 ot_ip6 proxied_ip;
397 char *fwd = http_header( ws->request, ws->header_size, "x-forwarded-for" ); 523 char *fwd = http_header(ws->request, ws->header_size, "x-forwarded-for");
398 if( fwd && scan_ip6( fwd, proxied_ip ) ) 524 if (fwd && scan_ip6(fwd, proxied_ip)) {
399 OT_SETIP( &ws->peer, proxied_ip ); 525 OT_SETIP(ws->peer, proxied_ip);
400 else 526 } else
401 OT_SETIP( &ws->peer, cookie->ip ); 527 OT_SETIP(ws->peer, cookie->ip);
402 } else 528 } else
403#endif 529#endif
404 OT_SETIP( &ws->peer, cookie->ip ); 530 OT_SETIP(ws->peer, cookie->ip);
405 531
406 ws->peer_id = NULL; 532 ws->peer_id = NULL;
407 ws->hash = NULL; 533 ws->hash = NULL;
408 534
409 OT_SETPORT( &ws->peer, &port ); 535 OT_SETPORT(ws->peer, &port);
410 OT_PEERFLAG( &ws->peer ) = 0; 536 OT_PEERFLAG(ws->peer) = 0;
411 numwant = 50; 537 numwant = 50;
412 scanon = 1; 538 scanon = 1;
413 539
414 while( scanon ) { 540 while (scanon) {
415 switch( scan_find_keywords(keywords_announce, &read_ptr, SCAN_SEARCHPATH_PARAM ) ) { 541 switch (scan_find_keywords(keywords_announce, &read_ptr, SCAN_SEARCHPATH_PARAM)) {
416 case -2: scanon = 0; break; /* TERMINATOR */ 542 case -2:
417 case -1: HTTPERROR_400_PARAM; /* PARSE ERROR */ 543 scanon = 0;
418 case -3: scan_urlencoded_skipvalue( &read_ptr ); break; 544 break; /* TERMINATOR */
545 case -1:
546 HTTPERROR_400_PARAM; /* PARSE ERROR */
547 case -3:
548 scan_urlencoded_skipvalue(&read_ptr);
549 break;
419 case 1: /* matched "port" */ 550 case 1: /* matched "port" */
420 len = scan_urlencoded_query( &read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE ); 551 len = scan_urlencoded_query(&read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE);
421 if( ( len <= 0 ) || scan_fixed_int( write_ptr, len, &tmp ) || ( tmp > 0xffff ) ) HTTPERROR_400_PARAM; 552 if ((len <= 0) || scan_fixed_int(write_ptr, len, &tmp) || (tmp > 0xffff))
422 port = htons( tmp ); OT_SETPORT( &ws->peer, &port ); 553 HTTPERROR_400_PARAM;
554 port = htons(tmp);
555 OT_SETPORT(&ws->peer, &port);
423 break; 556 break;
424 case 2: /* matched "left" */ 557 case 2: /* matched "left" */
425 if( ( len = scan_urlencoded_query( &read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE ) ) <= 0 ) HTTPERROR_400_PARAM; 558 if ((len = scan_urlencoded_query(&read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE)) <= 0)
426 if( scan_fixed_int( write_ptr, len, &tmp ) ) tmp = 0; 559 HTTPERROR_400_PARAM;
427 if( !tmp ) OT_PEERFLAG( &ws->peer ) |= PEER_FLAG_SEEDING; 560 if (scan_fixed_int(write_ptr, len, &tmp))
561 tmp = 0;
562 if (!tmp)
563 OT_PEERFLAG(&ws->peer) |= PEER_FLAG_SEEDING;
428 break; 564 break;
429 case 3: /* matched "event" */ 565 case 3: /* matched "event" */
430 switch( scan_find_keywords( keywords_announce_event, &read_ptr, SCAN_SEARCHPATH_VALUE ) ) { 566 switch (scan_find_keywords(keywords_announce_event, &read_ptr, SCAN_SEARCHPATH_VALUE)) {
431 case -1: HTTPERROR_400_PARAM; 567 case -1:
432 case 1: /* matched "completed" */ 568 HTTPERROR_400_PARAM;
433 OT_PEERFLAG( &ws->peer ) |= PEER_FLAG_COMPLETED; 569 case 1: /* matched "completed" */
434 break; 570 OT_PEERFLAG(&ws->peer) |= PEER_FLAG_COMPLETED;
435 case 2: /* matched "stopped" */ 571 break;
436 OT_PEERFLAG( &ws->peer ) |= PEER_FLAG_STOPPED; 572 case 2: /* matched "stopped" */
437 break; 573 OT_PEERFLAG(&ws->peer) |= PEER_FLAG_STOPPED;
438 default: 574 break;
439 break; 575 default:
576 break;
440 } 577 }
441 break; 578 break;
442 case 4: /* matched "numwant" */ 579 case 4: /* matched "numwant" */
443 len = scan_urlencoded_query( &read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE ); 580 len = scan_urlencoded_query(&read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE);
444 if( ( len <= 0 ) || scan_fixed_int( write_ptr, len, &numwant ) ) HTTPERROR_400_PARAM; 581 if ((len <= 0) || scan_fixed_int(write_ptr, len, &numwant))
445 if( numwant < 0 ) numwant = 50; 582 HTTPERROR_400_PARAM;
446 if( numwant > 200 ) numwant = 200; 583 if (numwant < 0)
584 numwant = 50;
585 if (numwant > 200)
586 numwant = 200;
447 break; 587 break;
448 case 5: /* matched "compact" */ 588 case 5: /* matched "compact" */
449 len = scan_urlencoded_query( &read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE ); 589 len = scan_urlencoded_query(&read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE);
450 if( ( len <= 0 ) || scan_fixed_int( write_ptr, len, &tmp ) ) HTTPERROR_400_PARAM; 590 if ((len <= 0) || scan_fixed_int(write_ptr, len, &tmp))
451 if( !tmp ) HTTPERROR_400_COMPACT; 591 HTTPERROR_400_PARAM;
592 if (!tmp)
593 HTTPERROR_400_COMPACT;
452 break; 594 break;
453 case 6: /* matched "info_hash" */ 595 case 6: /* matched "info_hash" */
454 if( ws->hash ) HTTPERROR_400_DOUBLEHASH; 596 if (ws->hash)
597 HTTPERROR_400_DOUBLEHASH;
455 /* ignore this, when we have less than 20 bytes */ 598 /* ignore this, when we have less than 20 bytes */
456 if( scan_urlencoded_query( &read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE ) != 20 ) HTTPERROR_400_PARAM; 599 if (scan_urlencoded_query(&read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE) != 20)
457 ws->hash = (ot_hash*)write_ptr; 600 HTTPERROR_400_PARAM;
601 ws->hash = (ot_hash *)write_ptr;
458 break; 602 break;
459#ifdef WANT_IP_FROM_QUERY_STRING 603#ifdef WANT_IP_FROM_QUERY_STRING
460 case 7: /* matched "ip" */ 604 case 7: /* matched "ip" */
461 { 605 {
462 char *tmp_buf1 = ws->reply, *tmp_buf2 = ws->reply+16; 606 char *tmp_buf1 = ws->reply, *tmp_buf2 = ws->reply + 16;
463 len = scan_urlencoded_query( &read_ptr, tmp_buf2, SCAN_SEARCHPATH_VALUE ); 607 len = scan_urlencoded_query(&read_ptr, tmp_buf2, SCAN_SEARCHPATH_VALUE);
464 tmp_buf2[len] = 0; 608 tmp_buf2[len] = 0;
465 if( ( len <= 0 ) || !scan_ip6( tmp_buf2, tmp_buf1 ) ) HTTPERROR_400_PARAM; 609 if ((len <= 0) || !scan_ip6(tmp_buf2, tmp_buf1))
466 OT_SETIP( &ws->peer, tmp_buf1 ); 610 HTTPERROR_400_PARAM;
467 } 611 OT_SETIP(&ws->peer, tmp_buf1);
468 break; 612 } break;
469#endif 613#endif
470#ifdef WANT_FULLLOG_NETWORKS 614#ifdef WANT_FULLLOG_NETWORKS
471 case 8: /* matched "lognet" */ 615 case 8: /* matched "lognet" */
472 { 616 {
473 //if( accesslist_isblessed( cookie->ip, OT_PERMISSION_MAY_STAT ) ) { 617 // if( accesslist_is_blessed( cookie->ip, OT_PERMISSION_MAY_STAT ) ) {
474 char *tmp_buf = ws->reply; 618 char *tmp_buf = ws->reply;
475 ot_net net; 619 ot_net net;
476 signed short parsed, bits; 620 signed short parsed, bits;
477 621
478 len = scan_urlencoded_query( &read_ptr, tmp_buf, SCAN_SEARCHPATH_VALUE ); 622 len = scan_urlencoded_query(&read_ptr, tmp_buf, SCAN_SEARCHPATH_VALUE);
479 tmp_buf[len] = 0; 623 tmp_buf[len] = 0;
480 if( len <= 0 ) HTTPERROR_400_PARAM; 624 if (len <= 0)
481 if( *tmp_buf == '-' ) { 625 HTTPERROR_400_PARAM;
482 loglist_reset( ); 626 if (*tmp_buf == '-') {
483 return ws->reply_size = sprintf( ws->reply, "Successfully removed.\n" ); 627 loglist_reset();
484 } 628 return ws->reply_size = sprintf(ws->reply, "Successfully removed.\n");
485 parsed = scan_ip6( tmp_buf, net.address );
486 if( !parsed ) HTTPERROR_400_PARAM;
487 if( tmp_buf[parsed++] != '/' )
488 bits = 128;
489 else {
490 parsed = scan_short( tmp_buf + parsed, &bits );
491 if( !parsed ) HTTPERROR_400_PARAM;
492 if( ip6_isv4mapped( net.address ) )
493 bits += 96;
494 }
495 net.bits = bits;
496 loglist_add_network( &net );
497 return ws->reply_size = sprintf( ws->reply, "Successfully added.\n" );
498 //}
499 } 629 }
630 parsed = scan_ip6(tmp_buf, net.address);
631 if (!parsed)
632 HTTPERROR_400_PARAM;
633 if (tmp_buf[parsed++] != '/')
634 bits = 128;
635 else {
636 parsed = scan_short(tmp_buf + parsed, &bits);
637 if (!parsed)
638 HTTPERROR_400_PARAM;
639 if (ip6_isv4mapped(net.address))
640 bits += 96;
641 }
642 net.bits = bits;
643 loglist_add_network(&net);
644 return ws->reply_size = sprintf(ws->reply, "Successfully added.\n");
645 //}
646 } break;
500#endif 647#endif
501 break; 648 case 9: /* matched "peer_id" */
502 case 9: /* matched "peer_id" */ 649 /* ignore this, when we have less than 20 bytes */
503 /* ignore this, when we have less than 20 bytes */ 650 if (scan_urlencoded_query(&read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE) != 20)
504 if( scan_urlencoded_query( &read_ptr, write_ptr = read_ptr, SCAN_SEARCHPATH_VALUE ) != 20 ) HTTPERROR_400_PARAM; 651 HTTPERROR_400_PARAM;
505 ws->peer_id = write_ptr; 652 ws->peer_id = write_ptr;
506 break; 653 break;
507 } 654 }
508 } 655 }
509 656
@@ -516,100 +663,107 @@ static ssize_t http_handle_announce( const int64 sock, struct ot_workstruct *ws,
516 */ 663 */
517 664
518 /* Scanned whole query string */ 665 /* Scanned whole query string */
519 if( !ws->hash ) 666 if (!ws->hash)
520 return ws->reply_size = sprintf( ws->reply, "d14:failure reason80:Your client forgot to send your torrent's info_hash. Please upgrade your client.e" ); 667 return ws->reply_size = sprintf(ws->reply, "d14:failure reason80:Your client forgot to send your torrent's info_hash. Please upgrade your client.e");
521 668
522 if( OT_PEERFLAG( &ws->peer ) & PEER_FLAG_STOPPED ) 669 if (OT_PEERFLAG(&ws->peer) & PEER_FLAG_STOPPED)
523 ws->reply_size = remove_peer_from_torrent( FLAG_TCP, ws ); 670 ws->reply_size = remove_peer_from_torrent(FLAG_TCP, ws);
524 else 671 else
525 ws->reply_size = add_peer_to_torrent_and_return_peers( FLAG_TCP, ws, numwant ); 672 ws->reply_size = add_peer_to_torrent_and_return_peers(FLAG_TCP, ws, numwant);
526 673
527 stats_issue_event( EVENT_ANNOUNCE, FLAG_TCP, ws->reply_size); 674 stats_issue_event(EVENT_ANNOUNCE, FLAG_TCP, ws->reply_size);
528 return ws->reply_size; 675 return ws->reply_size;
529} 676}
530 677
531ssize_t http_handle_request( const int64 sock, struct ot_workstruct *ws ) { 678ssize_t http_handle_request(const int64 sock, struct ot_workstruct *ws) {
532 ssize_t reply_off, len; 679 ssize_t reply_off, len;
533 char *read_ptr = ws->request, *write_ptr; 680 char *read_ptr = ws->request, *write_ptr;
534 681
535#ifdef WANT_FULLLOG_NETWORKS 682#ifdef WANT_FULLLOG_NETWORKS
536 struct http_data *cookie = io_getcookie( sock ); 683 struct http_data *cookie = io_getcookie(sock);
537 if( loglist_check_address( cookie->ip ) ) { 684 if (loglist_check_address(cookie->ip)) {
538 ot_log *log = malloc( sizeof( ot_log ) ); 685 ot_log *log = malloc(sizeof(ot_log));
539 if( log ) { 686 if (log) {
540 log->size = ws->request_size; 687 log->size = ws->request_size;
541 log->data = malloc( ws->request_size ); 688 log->data = malloc(ws->request_size);
542 log->next = 0; 689 log->next = 0;
543 log->time = g_now_seconds; 690 log->time = g_now_seconds;
544 memcpy( log->ip, cookie->ip, sizeof(ot_ip6)); 691 memcpy(log->ip, cookie->ip, sizeof(ot_ip6));
545 if( log->data ) { 692 if (log->data) {
546 memcpy( log->data, ws->request, ws->request_size ); 693 memcpy(log->data, ws->request, ws->request_size);
547 if( !g_logchain_first ) 694 if (!g_logchain_first)
548 g_logchain_first = g_logchain_last = log; 695 g_logchain_first = g_logchain_last = log;
549 else { 696 else {
550 g_logchain_last->next = log; 697 g_logchain_last->next = log;
551 g_logchain_last = log; 698 g_logchain_last = log;
552 } 699 }
553 } else 700 } else
554 free( log ); 701 free(log);
555 } 702 }
556 } 703 }
557#endif 704#endif
558 705
559#ifdef _DEBUG_HTTPERROR 706#ifdef _DEBUG_HTTPERROR
560 reply_off = ws->request_size; 707 reply_off = ws->request_size;
561 if( ws->request_size >= G_DEBUGBUF_SIZE ) 708 if (ws->request_size >= G_DEBUGBUF_SIZE)
562 reply_off = G_DEBUGBUF_SIZE - 1; 709 reply_off = G_DEBUGBUF_SIZE - 1;
563 memcpy( ws->debugbuf, ws->request, reply_off ); 710 memcpy(ws->debugbuf, ws->request, reply_off);
564 ws->debugbuf[ reply_off ] = 0; 711 ws->debugbuf[reply_off] = 0;
565#endif 712#endif
566 713
567 /* Tell subroutines where to put reply data */ 714 /* Tell subroutines where to put reply data */
568 ws->reply = ws->outbuf + SUCCESS_HTTP_HEADER_LENGTH; 715 ws->reply = ws->outbuf + SUCCESS_HTTP_HEADER_LENGTH;
569 716
570 /* This one implicitely tests strlen < 5, too -- remember, it is \n terminated */ 717 /* This one implicitely tests strlen < 5, too -- remember, it is \n terminated */
571 if( memcmp( read_ptr, "GET /", 5) ) HTTPERROR_400; 718 if (memcmp(read_ptr, "GET /", 5))
719 HTTPERROR_400;
572 720
573 /* Skip leading '/' */ 721 /* Skip leading '/' */
574 for( read_ptr+=4; *read_ptr == '/'; ++read_ptr); 722 for (read_ptr += 4; *read_ptr == '/'; ++read_ptr)
723 ;
575 724
576 /* Try to parse the request. 725 /* Try to parse the request.
577 In reality we abandoned requiring the url to be correct. This now 726 In reality we abandoned requiring the url to be correct. This now
578 only decodes url encoded characters, we check for announces and 727 only decodes url encoded characters, we check for announces and
579 scrapes by looking for "a*" or "sc" */ 728 scrapes by looking for "a*" or "sc" */
580 len = scan_urlencoded_query( &read_ptr, write_ptr = read_ptr, SCAN_PATH ); 729 len = scan_urlencoded_query(&read_ptr, write_ptr = read_ptr, SCAN_PATH);
581 730
582 /* If parsing returned an error, leave with not found */ 731 /* If parsing returned an error, leave with not found */
583 if( g_redirecturl && ( len == -2 ) ) HTTPERROR_302; 732 if (g_redirecturl && (len == -2))
584 if( len <= 0 ) HTTPERROR_404; 733 HTTPERROR_302;
734 if (len <= 0)
735 HTTPERROR_404;
585 736
586 /* This is the hardcore match for announce*/ 737 /* This is the hardcore match for announce*/
587 if( ( *write_ptr == 'a' ) || ( *write_ptr == '?' ) ) 738 if ((*write_ptr == 'a') || (*write_ptr == '?'))
588 http_handle_announce( sock, ws, read_ptr ); 739 http_handle_announce(sock, ws, read_ptr);
589#ifdef WANT_FULLSCRAPE 740#ifdef WANT_FULLSCRAPE
590 else if( !memcmp( write_ptr, "scrape HTTP/", 12 ) ) 741 else if (!memcmp(write_ptr, "scrape HTTP/", 12))
591 http_handle_fullscrape( sock, ws ); 742 http_handle_fullscrape(sock, ws);
592#endif 743#endif
593 /* This is the hardcore match for scrape */ 744 /* This is the hardcore match for scrape */
594 else if( !memcmp( write_ptr, "sc", 2 ) ) 745 else if (!memcmp(write_ptr, "sc", 2))
595 http_handle_scrape( sock, ws, read_ptr ); 746 http_handle_scrape(sock, ws, read_ptr);
596 /* All the rest is matched the standard way */ 747 /* All the rest is matched the standard way */
597 else if( len == g_stats_path_len && !memcmp( write_ptr, g_stats_path, len ) ) 748 else if (len == g_stats_path_len && !memcmp(write_ptr, g_stats_path, len))
598 http_handle_stats( sock, ws, read_ptr ); 749 http_handle_stats(sock, ws, read_ptr);
599 else 750 else
600 HTTPERROR_404; 751 HTTPERROR_404;
601 752
602 /* Find out if the client wants to keep this connection alive */ 753 /* Find out if the client wants to keep this connection alive */
603 ws->keep_alive = 0; 754 ws->keep_alive = 0;
604#ifdef WANT_KEEPALIVE 755#ifdef WANT_KEEPALIVE
605 read_ptr=http_header( ws->request, ws->header_size, "connection"); 756 read_ptr = http_header(ws->request, ws->header_size, "connection");
606 if( read_ptr && ( *read_ptr == 'K' || *read_ptr == 'k' ) ) ws->keep_alive = 1; 757 if (read_ptr && (*read_ptr == 'K' || *read_ptr == 'k'))
758 ws->keep_alive = 1;
607#endif 759#endif
608 760
609 /* If routines handled sending themselves, just return */ 761 /* If routines handled sending themselves, just return */
610 if( ws->reply_size == -2 ) return 0; 762 if (ws->reply_size == -2)
763 return 0;
611 /* If routine failed, let http error take over */ 764 /* If routine failed, let http error take over */
612 if( ws->reply_size <= 0 ) HTTPERROR_500; 765 if (ws->reply_size <= 0)
766 HTTPERROR_500;
613 767
614 /* This one is rather ugly, so I take you step by step through it. 768 /* This one is rather ugly, so I take you step by step through it.
615 769
@@ -618,18 +772,16 @@ ssize_t http_handle_request( const int64 sock, struct ot_workstruct *ws ) {
618 plus dynamic space needed to expand our Content-Length value. We reserve SUCCESS_HTTP_SIZE_OFF for its expansion and calculate 772 plus dynamic space needed to expand our Content-Length value. We reserve SUCCESS_HTTP_SIZE_OFF for its expansion and calculate
619 the space NOT needed to expand in reply_off 773 the space NOT needed to expand in reply_off
620 */ 774 */
621 reply_off = SUCCESS_HTTP_SIZE_OFF - snprintf( ws->outbuf, 0, "%zd", ws->reply_size ); 775 reply_off = SUCCESS_HTTP_SIZE_OFF - snprintf(ws->outbuf, 0, "%zd", ws->reply_size);
622 ws->reply = ws->outbuf + reply_off; 776 ws->reply = ws->outbuf + reply_off;
623 777
624 /* 2. Now we sprintf our header so that sprintf writes its terminating '\0' exactly one byte before content starts. Complete 778 /* 2. Now we sprintf our header so that sprintf writes its terminating '\0' exactly one byte before content starts. Complete
625 packet size is increased by size of header plus one byte '\n', we will copy over '\0' in next step */ 779 packet size is increased by size of header plus one byte '\n', we will copy over '\0' in next step */
626 ws->reply_size += 1 + sprintf( ws->reply, "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nContent-Length: %zd\r\n\r", ws->reply_size ); 780 ws->reply_size += 1 + sprintf(ws->reply, "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nContent-Length: %zd\r\n\r", ws->reply_size);
627 781
628 /* 3. Finally we join both blocks neatly */ 782 /* 3. Finally we join both blocks neatly */
629 ws->outbuf[ SUCCESS_HTTP_HEADER_LENGTH - 1 ] = '\n'; 783 ws->outbuf[SUCCESS_HTTP_HEADER_LENGTH - 1] = '\n';
630 784
631 http_senddata( sock, ws ); 785 http_senddata(sock, ws);
632 return ws->reply_size; 786 return ws->reply_size;
633} 787}
634
635const char *g_version_http_c = "$Source$: $Revision$\n";
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