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3c66d057 | 1 | |
dd11e0b7 | 2 | /* |
d548ee64 | 3 | * $Id: client_side.cc,v 1.412 1998/10/14 21:11:58 wessels Exp $ |
dd11e0b7 | 4 | * |
5 | * DEBUG: section 33 Client-side Routines | |
6 | * AUTHOR: Duane Wessels | |
7 | * | |
42c04c16 | 8 | * SQUID Internet Object Cache http://squid.nlanr.net/Squid/ |
e25c139f | 9 | * ---------------------------------------------------------- |
dd11e0b7 | 10 | * |
11 | * Squid is the result of efforts by numerous individuals from the | |
12 | * Internet community. Development is led by Duane Wessels of the | |
e25c139f | 13 | * National Laboratory for Applied Network Research and funded by the |
14 | * National Science Foundation. Squid is Copyrighted (C) 1998 by | |
15 | * Duane Wessels and the University of California San Diego. Please | |
16 | * see the COPYRIGHT file for full details. Squid incorporates | |
17 | * software developed and/or copyrighted by other sources. Please see | |
18 | * the CREDITS file for full details. | |
dd11e0b7 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
dd11e0b7 | 34 | */ |
f88bb09c | 35 | |
36 | #include "squid.h" | |
37 | ||
5cafc1d6 | 38 | #if IPF_TRANSPARENT |
39 | #if HAVE_SYS_IOCTL_H | |
40 | #include <sys/ioctl.h> | |
41 | #endif | |
42 | #include <netinet/tcp.h> | |
43 | #include <net/if.h> | |
44 | #include <ip_compat.h> | |
45 | #include <ip_fil.h> | |
46 | #include <ip_nat.h> | |
47 | #endif | |
48 | ||
49 | ||
50 | ||
5492ad1d | 51 | #if LINGERING_CLOSE |
52 | #define comm_close comm_lingering_close | |
53 | #endif | |
54 | ||
7a2f978b | 55 | static const char *const crlf = "\r\n"; |
f715bd3a | 56 | static const char *const proxy_auth_challenge_fmt = "Basic realm=\"%s\""; |
7a2f978b | 57 | |
58 | #define REQUEST_BUF_SIZE 4096 | |
59 | #define FAILURE_MODE_TIME 300 | |
60 | ||
61 | /* Local functions */ | |
62 | ||
fc5d6f7f | 63 | static CWCB clientWriteComplete; |
7a2f978b | 64 | static PF clientReadRequest; |
65 | static PF connStateFree; | |
66 | static PF requestTimeout; | |
7a2f978b | 67 | static int CheckQuickAbort2(const clientHttpRequest *); |
1b02b5be | 68 | static int clientCheckTransferDone(clientHttpRequest *); |
7a2f978b | 69 | static void CheckQuickAbort(clientHttpRequest *); |
88aad2e5 | 70 | static void checkFailureRatio(err_type, hier_code); |
fb63215a | 71 | static void clientProcessMiss(clientHttpRequest *); |
eeb423fb | 72 | static void clientBuildReplyHeader(clientHttpRequest * http, HttpReply * rep); |
99edd1c3 | 73 | static clientHttpRequest *parseHttpRequestAbort(ConnStateData * conn, const char *uri); |
7a2f978b | 74 | static clientHttpRequest *parseHttpRequest(ConnStateData *, method_t *, int *, char **, size_t *); |
582b6456 | 75 | static RH clientRedirectDone; |
1b02b5be | 76 | static STCB clientHandleIMSReply; |
f5b8bbc4 | 77 | static int clientGetsOldEntry(StoreEntry * new, StoreEntry * old, request_t * request); |
78 | static int checkAccelOnly(clientHttpRequest *); | |
7c1d4010 | 79 | static int clientOnlyIfCached(clientHttpRequest * http); |
7a2f978b | 80 | static STCB clientSendMoreData; |
81 | static STCB clientCacheHit; | |
99edd1c3 | 82 | static void clientInterpretRequestHeaders(clientHttpRequest *); |
fb63215a | 83 | static void clientProcessRequest(clientHttpRequest *); |
84 | static void clientProcessExpired(void *data); | |
038eb4ed | 85 | static void clientProcessOnlyIfCachedMiss(clientHttpRequest * http); |
cb69b4c7 | 86 | static HttpReply *clientConstructProxyAuthReply(clientHttpRequest * http); |
50ddd7a4 | 87 | static int clientCachable(clientHttpRequest * http); |
88 | static int clientHierarchical(clientHttpRequest * http); | |
efb9218c | 89 | static int clientCheckContentLength(request_t * r); |
ba4f8e5a | 90 | static int httpAcceptDefer(void); |
49d3fcb0 | 91 | static log_type clientProcessRequest2(clientHttpRequest * http); |
ea6f43cd | 92 | |
38d7734b | 93 | static int |
382d851a | 94 | checkAccelOnly(clientHttpRequest * http) |
38d7734b | 95 | { |
96 | /* return TRUE if someone makes a proxy request to us and | |
97 | * we are in httpd-accel only mode */ | |
f1dc9b30 | 98 | if (!Config2.Accel.on) |
38d7734b | 99 | return 0; |
17a0a4ee | 100 | if (Config.onoff.accel_with_proxy) |
38d7734b | 101 | return 0; |
382d851a | 102 | if (http->request->protocol == PROTO_CACHEOBJ) |
38d7734b | 103 | return 0; |
77ed547a | 104 | if (http->flags.accel) |
38d7734b | 105 | return 0; |
106 | return 1; | |
107 | } | |
108 | ||
b8d8561b | 109 | void |
382d851a | 110 | clientAccessCheck(void *data) |
f88bb09c | 111 | { |
382d851a | 112 | clientHttpRequest *http = data; |
113 | ConnStateData *conn = http->conn; | |
99edd1c3 | 114 | const char *browser; |
17a0a4ee | 115 | if (Config.onoff.ident_lookup && conn->ident.state == IDENT_NONE) { |
425ad52e | 116 | identStart(-1, conn, clientAccessCheck, http); |
ba1d2afa | 117 | return; |
118 | } | |
382d851a | 119 | if (checkAccelOnly(http)) { |
120 | clientAccessCheckDone(0, http); | |
75e88d56 | 121 | return; |
f88bb09c | 122 | } |
99edd1c3 | 123 | browser = httpHeaderGetStr(&http->request->header, HDR_USER_AGENT); |
f1dc9b30 | 124 | http->acl_checklist = aclChecklistCreate(Config.accessList.http, |
382d851a | 125 | http->request, |
126 | conn->peer.sin_addr, | |
75e88d56 | 127 | browser, |
382d851a | 128 | conn->ident.ident); |
129 | aclNBCheck(http->acl_checklist, clientAccessCheckDone, http); | |
f88bb09c | 130 | } |
131 | ||
7c1d4010 | 132 | /* |
133 | * returns true if client specified that the object must come from the cache | |
134 | * witout contacting origin server | |
135 | */ | |
136 | static int | |
137 | clientOnlyIfCached(clientHttpRequest * http) | |
138 | { | |
139 | const request_t *r = http->request; | |
140 | assert(r); | |
ea285003 | 141 | return r->cache_control && |
8e092300 | 142 | EBIT_TEST(r->cache_control->mask, CC_ONLY_IF_CACHED); |
7c1d4010 | 143 | } |
144 | ||
cb69b4c7 | 145 | static HttpReply * |
ee1679df | 146 | clientConstructProxyAuthReply(clientHttpRequest * http) |
cb69b4c7 | 147 | { |
148 | ErrorState *err = errorCon(ERR_CACHE_ACCESS_DENIED, HTTP_PROXY_AUTHENTICATION_REQUIRED); | |
149 | HttpReply *rep; | |
150 | err->request = requestLink(http->request); | |
151 | rep = errorBuildReply(err); | |
152 | errorStateFree(err); | |
153 | /* add Authenticate header */ | |
f715bd3a | 154 | httpHeaderPutStrf(&rep->header, HDR_PROXY_AUTHENTICATE, proxy_auth_challenge_fmt, Config.proxyAuthRealm); |
cb69b4c7 | 155 | return rep; |
156 | } | |
fc5d6f7f | 157 | |
23d92c64 | 158 | StoreEntry * |
92695e5e | 159 | clientCreateStoreEntry(clientHttpRequest * h, method_t m, request_flags flags) |
79e0dc20 | 160 | { |
161 | StoreEntry *e; | |
40defb17 | 162 | /* |
163 | * For erroneous requests, we might not have a h->request, | |
164 | * so make a fake one. | |
165 | */ | |
99edd1c3 | 166 | if (h->request == NULL) |
167 | h->request = requestLink(requestCreate(m, PROTO_NONE, NULL)); | |
23d92c64 | 168 | e = storeCreateEntry(h->uri, h->log_uri, flags, m); |
79e0dc20 | 169 | storeClientListAdd(e, h); |
447e176b | 170 | #if DELAY_POOLS |
171 | delaySetStoreClient(e, h, h->request->delay_id); | |
172 | #endif | |
cc27d775 | 173 | storeClientCopy(e, 0, 0, CLIENT_SOCK_SZ, memAllocate(MEM_CLIENT_SOCK_BUF), clientSendMoreData, h); |
79e0dc20 | 174 | return e; |
175 | } | |
176 | ||
177 | ||
b8d8561b | 178 | void |
75e88d56 | 179 | clientAccessCheckDone(int answer, void *data) |
f88bb09c | 180 | { |
382d851a | 181 | clientHttpRequest *http = data; |
02922e76 | 182 | int page_id = -1; |
9b312a19 | 183 | ErrorState *err = NULL; |
23d92c64 | 184 | debug(33, 5) ("clientAccessCheckDone: '%s' answer=%d\n", http->uri, answer); |
382d851a | 185 | http->acl_checklist = NULL; |
fc5d6f7f | 186 | if (answer == ACCESS_ALLOWED) { |
9b5d1d21 | 187 | safe_free(http->uri); |
188 | http->uri = xstrdup(urlCanonical(http->request)); | |
ce66013b | 189 | assert(http->redirect_state == REDIRECT_NONE); |
382d851a | 190 | http->redirect_state = REDIRECT_PENDING; |
191 | redirectStart(http, clientRedirectDone, http); | |
fc5d6f7f | 192 | } else if (answer == ACCESS_REQ_PROXY_AUTH) { |
fc5d6f7f | 193 | http->log_type = LOG_TCP_DENIED; |
92695e5e | 194 | http->entry = clientCreateStoreEntry(http, http->request->method, null_request_flags); |
def67559 | 195 | /* create appropriate response */ |
196 | http->entry->mem_obj->reply = clientConstructProxyAuthReply(http); | |
197 | httpReplySwapOut(http->entry->mem_obj->reply, http->entry); | |
0254527a | 198 | storeComplete(http->entry); |
f88bb09c | 199 | } else { |
23d92c64 | 200 | debug(33, 5) ("Access Denied: %s\n", http->uri); |
901e234d | 201 | debug(33, 5) ("AclMatchedName = %s\n", |
6f47fbc7 | 202 | AclMatchedName ? AclMatchedName : "<null>"); |
79a15e0a | 203 | http->log_type = LOG_TCP_DENIED; |
92695e5e | 204 | http->entry = clientCreateStoreEntry(http, http->request->method, null_request_flags); |
02922e76 | 205 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName); |
206 | /* NOTE: don't use HTTP_UNAUTHORIZED because then the | |
207 | * stupid browser wants us to authenticate */ | |
208 | err = errorCon(ERR_ACCESS_DENIED, HTTP_FORBIDDEN); | |
209 | err->request = requestLink(http->request); | |
210 | err->src_addr = http->conn->peer.sin_addr; | |
211 | if (page_id > 0) | |
212 | err->page_id = page_id; | |
213 | errorAppendEntry(http->entry, err); | |
f88bb09c | 214 | } |
215 | } | |
216 | ||
b8d8561b | 217 | static void |
218 | clientRedirectDone(void *data, char *result) | |
f88bb09c | 219 | { |
382d851a | 220 | clientHttpRequest *http = data; |
c0cdaf99 | 221 | request_t *new_request = NULL; |
382d851a | 222 | request_t *old_request = http->request; |
23d92c64 | 223 | debug(33, 5) ("clientRedirectDone: '%s' result=%s\n", http->uri, |
f88bb09c | 224 | result ? result : "NULL"); |
ce66013b | 225 | assert(http->redirect_state == REDIRECT_PENDING); |
382d851a | 226 | http->redirect_state = REDIRECT_DONE; |
77ed547a | 227 | if (result && strcmp(result, http->uri)) |
20cc1450 | 228 | new_request = urlParse(old_request->method, result); |
c0cdaf99 | 229 | if (new_request) { |
23d92c64 | 230 | safe_free(http->uri); |
9b5d1d21 | 231 | http->uri = xstrdup(urlCanonical(new_request)); |
20cc1450 | 232 | new_request->http_ver = old_request->http_ver; |
2246b732 | 233 | httpHeaderAppend(&new_request->header, &old_request->header); |
77ed547a | 234 | new_request->client_addr = old_request->client_addr; |
92695e5e | 235 | new_request->flags.redirected = 1; |
6cf028ab | 236 | if (old_request->body) { |
237 | new_request->body = xmalloc(old_request->body_sz); | |
238 | xmemcpy(new_request->body, old_request->body, old_request->body_sz); | |
239 | new_request->body_sz = old_request->body_sz; | |
240 | } | |
20cc1450 | 241 | requestUnlink(old_request); |
382d851a | 242 | http->request = requestLink(new_request); |
f88bb09c | 243 | } |
99edd1c3 | 244 | clientInterpretRequestHeaders(http); |
23d92c64 | 245 | fd_note(http->conn->fd, http->uri); |
fb63215a | 246 | clientProcessRequest(http); |
e81957b7 | 247 | } |
248 | ||
fb63215a | 249 | static void |
250 | clientProcessExpired(void *data) | |
620da955 | 251 | { |
382d851a | 252 | clientHttpRequest *http = data; |
23d92c64 | 253 | char *url = http->uri; |
620da955 | 254 | StoreEntry *entry = NULL; |
23d92c64 | 255 | debug(33, 3) ("clientProcessExpired: '%s'\n", http->uri); |
b9d34cc1 | 256 | assert(http->entry->lastmod >= 0); |
7c1d4010 | 257 | /* |
258 | * check if we are allowed to contact other servers | |
259 | * @?@: Instead of a 504 (Gateway Timeout) reply, we may want to return | |
6106c6fc | 260 | * a stale entry *if* it matches client requirements |
7c1d4010 | 261 | */ |
262 | if (clientOnlyIfCached(http)) { | |
263 | clientProcessOnlyIfCachedMiss(http); | |
264 | return; | |
265 | } | |
92695e5e | 266 | http->request->flags.refresh = 1; |
382d851a | 267 | http->old_entry = http->entry; |
620da955 | 268 | entry = storeCreateEntry(url, |
23d92c64 | 269 | http->log_uri, |
382d851a | 270 | http->request->flags, |
271 | http->request->method); | |
620da955 | 272 | /* NOTE, don't call storeLockObject(), storeCreateEntry() does it */ |
fe96bbe6 | 273 | storeClientListAdd(entry, http); |
274 | storeClientListAdd(http->old_entry, http); | |
447e176b | 275 | #if DELAY_POOLS |
276 | delaySetStoreClient(entry, http, http->request->delay_id); | |
277 | delaySetStoreClient(http->old_entry, http, http->request->delay_id); | |
278 | #endif | |
382d851a | 279 | entry->lastmod = http->old_entry->lastmod; |
1c3e77cd | 280 | debug(33, 5) ("clientProcessExpired: lastmod %d\n", (int) entry->lastmod); |
d1a43e28 | 281 | entry->refcount++; /* EXPIRED CASE */ |
382d851a | 282 | http->entry = entry; |
283 | http->out.offset = 0; | |
d1061d2b | 284 | fwdStart(http->conn->fd, http->entry, http->request, |
285 | http->conn->peer.sin_addr); | |
f990cccc | 286 | /* Register with storage manager to receive updates when data comes in. */ |
0e473d70 | 287 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 288 | debug(33, 0) ("clientProcessExpired: entry->swap_status == STORE_ABORTED\n"); |
d89d1fb6 | 289 | storeClientCopy(entry, |
fe96bbe6 | 290 | http->out.offset, |
d89d1fb6 | 291 | http->out.offset, |
cc27d775 | 292 | CLIENT_SOCK_SZ, |
293 | memAllocate(MEM_CLIENT_SOCK_BUF), | |
1b02b5be | 294 | clientHandleIMSReply, |
d89d1fb6 | 295 | http); |
620da955 | 296 | } |
297 | ||
91f4d519 | 298 | static int |
299 | clientGetsOldEntry(StoreEntry * new_entry, StoreEntry * old_entry, request_t * request) | |
300 | { | |
71a8a965 | 301 | const http_status status = new_entry->mem_obj->reply->sline.status; |
302 | if (0 == status) { | |
303 | debug(33, 5) ("clientGetsOldEntry: YES, broken HTTP reply\n"); | |
304 | return 1; | |
305 | } | |
91f4d519 | 306 | /* If the reply is anything but "Not Modified" then |
307 | * we must forward it to the client */ | |
71a8a965 | 308 | if (HTTP_NOT_MODIFIED != status) { |
cb69b4c7 | 309 | debug(33, 5) ("clientGetsOldEntry: NO, reply=%d\n", status); |
91f4d519 | 310 | return 0; |
311 | } | |
312 | /* If the client did not send IMS in the request, then it | |
313 | * must get the old object, not this "Not Modified" reply */ | |
92695e5e | 314 | if (!request->flags.ims) { |
a3d5953d | 315 | debug(33, 5) ("clientGetsOldEntry: YES, no client IMS\n"); |
91f4d519 | 316 | return 1; |
317 | } | |
318 | /* If the client IMS time is prior to the entry LASTMOD time we | |
319 | * need to send the old object */ | |
320 | if (modifiedSince(old_entry, request)) { | |
5f6ac48b | 321 | debug(33, 5) ("clientGetsOldEntry: YES, modified since %d\n", |
1afe05c5 | 322 | (int) request->ims); |
91f4d519 | 323 | return 1; |
324 | } | |
a3d5953d | 325 | debug(33, 5) ("clientGetsOldEntry: NO, new one is fine\n"); |
91f4d519 | 326 | return 0; |
327 | } | |
328 | ||
329 | ||
52d4522b | 330 | static void |
1b02b5be | 331 | clientHandleIMSReply(void *data, char *buf, ssize_t size) |
620da955 | 332 | { |
382d851a | 333 | clientHttpRequest *http = data; |
382d851a | 334 | StoreEntry *entry = http->entry; |
620da955 | 335 | MemObject *mem = entry->mem_obj; |
9fb13bb6 | 336 | const char *url = storeUrl(entry); |
e92d33a5 | 337 | int unlink_request = 0; |
76cff1d4 | 338 | StoreEntry *oldentry; |
49d3fcb0 | 339 | int recopy = 1; |
71a8a965 | 340 | const http_status status = mem->reply->sline.status; |
93f9abd0 | 341 | debug(33, 3) ("clientHandleIMSReply: %s, %d bytes\n", url, (int) size); |
6801f8a8 | 342 | if (size < 0 && entry->store_status != STORE_ABORTED) |
d87ebd78 | 343 | #if OLD_CODE |
344 | /* | |
345 | * This storeAbort() call causes wrong behaviour in some situations. | |
346 | * If there are multiple clients hanging on this entry, the second | |
347 | * client will not want the entry to be aborted. This shows up in | |
348 | * the stack trace below: | |
349 | * | |
350 | * #0 0xef5f452c in kill () | |
351 | * #1 0xef5ba620 in abort () | |
352 | * #2 0x7d680 in __eprintf (string=0x82a70 "%s:%u: failed assertion `%s'\n", expression=0x82a90 "client_side.c", line=1111, filename=0x83468 "size > 0") | |
353 | * #3 0x2ad7c in clientCacheHit (data=0x31ae318, buf=0x17f1450 "", size=0) at client_side.c:1111 | |
354 | * #4 0x65cd4 in storeClientCopy2 (e=0x4c48c0, sc=0x2eedd70) at store_client.c:264 | |
355 | * #5 0x665b0 in InvokeHandlers (e=0x4c48c0) at store_client.c:510 | |
356 | * #6 0x63c90 in storeAbort (e=0x4c48c0, cbflag=1) at store.c:626 | |
357 | * #7 0x29190 in clientHandleIMSReply (data=0x31e9518, buf=0x2268810 "", size=-1) at client_side.c:343 | |
358 | * #8 0x66450 in storeUnregister (e=0x2910c, data=0x31e9518) at store_client.c:467 | |
359 | * #9 0x29a54 in httpRequestFree (data=0x31e9518) at client_side.c:579 | |
360 | * #10 0x29eb4 in connStateFree (fd=534528, data=0x314d0d0) at client_side.c:667 | |
361 | * #11 0x2f27c in commCallCloseHandlers (fd=42) at comm.c:501 | |
362 | * #12 0x2f410 in comm_close (fd=42) at comm.c:565 | |
363 | * #13 0x2d054 in clientReadRequest (fd=42, data=0x314d0d0) at client_side.c:2038 | |
364 | * #14 0x309c8 in comm_poll (msec=434) at comm_select.c:354 | |
365 | * #15 0x4da64 in main (argc=5, argv=0xeffffd4c) at main.c:587 | |
366 | */ | |
6801f8a8 | 367 | storeAbort(entry, 1); |
d87ebd78 | 368 | #endif |
ac18f51a | 369 | /* |
370 | * Lets just try to return here and see what kind of problems that | |
371 | * causes | |
372 | */ | |
373 | return; | |
6801f8a8 | 374 | if (entry->store_status == STORE_ABORTED) { |
1b02b5be | 375 | debug(33, 3) ("clientHandleIMSReply: ABORTED '%s'\n", url); |
c54e9052 | 376 | /* We have an existing entry, but failed to validate it */ |
accc6d47 | 377 | /* Its okay to send the old one anyway */ |
378 | http->log_type = LOG_TCP_REFRESH_FAIL_HIT; | |
379 | storeUnregister(entry, http); | |
380 | storeUnlockObject(entry); | |
381 | entry = http->entry = http->old_entry; | |
382 | entry->refcount++; | |
71a8a965 | 383 | } else if (STORE_PENDING == entry->store_status && 0 == status) { |
1b02b5be | 384 | debug(33, 3) ("clientHandleIMSReply: Incomplete headers for '%s'\n", url); |
cc27d775 | 385 | if (size >= CLIENT_SOCK_SZ) { |
4455552a | 386 | /* will not get any bigger than that */ |
387 | debug(33, 3) ("clientHandleIMSReply: Reply is too large '%s', using old entry\n", url); | |
878570db | 388 | /* use old entry, this repeats the code abovez */ |
4455552a | 389 | http->log_type = LOG_TCP_REFRESH_FAIL_HIT; |
390 | storeUnregister(entry, http); | |
743eebfa | 391 | storeUnlockObject(entry); |
4455552a | 392 | entry = http->entry = http->old_entry; |
393 | entry->refcount++; | |
878570db | 394 | /* continue */ |
4455552a | 395 | } else { |
4455552a | 396 | storeClientCopy(entry, |
397 | http->out.offset + size, | |
398 | http->out.offset, | |
cc27d775 | 399 | CLIENT_SOCK_SZ, |
49d3fcb0 | 400 | buf, |
4455552a | 401 | clientHandleIMSReply, |
402 | http); | |
878570db | 403 | return; |
4455552a | 404 | } |
382d851a | 405 | } else if (clientGetsOldEntry(entry, http->old_entry, http->request)) { |
620da955 | 406 | /* We initiated the IMS request, the client is not expecting |
76cff1d4 | 407 | * 304, so put the good one back. First, make sure the old entry |
408 | * headers have been loaded from disk. */ | |
382d851a | 409 | oldentry = http->old_entry; |
382d851a | 410 | http->log_type = LOG_TCP_REFRESH_HIT; |
d89d1fb6 | 411 | if (oldentry->mem_obj->request == NULL) { |
412 | oldentry->mem_obj->request = requestLink(mem->request); | |
413 | unlink_request = 1; | |
e92d33a5 | 414 | } |
64763c37 | 415 | /* Don't memcpy() the whole reply structure here. For example, |
416 | * www.thegist.com (Netscape/1.13) returns a content-length for | |
417 | * 304's which seems to be the length of the 304 HEADERS!!! and | |
418 | * not the body they refer to. */ | |
71a8a965 | 419 | httpReplyUpdateOnNotModified(oldentry->mem_obj->reply, mem->reply); |
d89d1fb6 | 420 | storeTimestampsSet(oldentry); |
382d851a | 421 | storeUnregister(entry, http); |
6d54aea8 | 422 | storeUnlockObject(entry); |
382d851a | 423 | entry = http->entry = oldentry; |
41fad779 | 424 | entry->timestamp = squid_curtime; |
657266fe | 425 | if (unlink_request) { |
e92d33a5 | 426 | requestUnlink(entry->mem_obj->request); |
657266fe | 427 | entry->mem_obj->request = NULL; |
428 | } | |
620da955 | 429 | } else { |
430 | /* the client can handle this reply, whatever it is */ | |
382d851a | 431 | http->log_type = LOG_TCP_REFRESH_MISS; |
71a8a965 | 432 | if (HTTP_NOT_MODIFIED == mem->reply->sline.status) { |
382d851a | 433 | http->old_entry->timestamp = squid_curtime; |
434 | http->old_entry->refcount++; | |
435 | http->log_type = LOG_TCP_REFRESH_HIT; | |
d1a43e28 | 436 | } |
382d851a | 437 | storeUnregister(http->old_entry, http); |
438 | storeUnlockObject(http->old_entry); | |
49d3fcb0 | 439 | recopy = 0; |
620da955 | 440 | } |
382d851a | 441 | http->old_entry = NULL; /* done with old_entry */ |
49d3fcb0 | 442 | assert(entry->store_status != STORE_ABORTED); |
443 | if (recopy) { | |
444 | storeClientCopy(entry, | |
445 | http->out.offset, | |
446 | http->out.offset, | |
cc27d775 | 447 | CLIENT_SOCK_SZ, |
49d3fcb0 | 448 | buf, |
449 | clientSendMoreData, | |
450 | http); | |
451 | } else { | |
452 | clientSendMoreData(data, buf, size); | |
6cf028ab | 453 | } |
620da955 | 454 | } |
91f4d519 | 455 | |
456 | int | |
304d07cb | 457 | modifiedSince(StoreEntry * entry, request_t * request) |
91f4d519 | 458 | { |
459 | int object_length; | |
460 | MemObject *mem = entry->mem_obj; | |
1c3e77cd | 461 | time_t mod_time = entry->lastmod; |
9fb13bb6 | 462 | debug(33, 3) ("modifiedSince: '%s'\n", storeUrl(entry)); |
1c3e77cd | 463 | if (mod_time < 0) |
464 | mod_time = entry->timestamp; | |
0cdcddb9 | 465 | debug(33, 3) ("modifiedSince: mod_time = %d\n", (int) mod_time); |
1c3e77cd | 466 | if (mod_time < 0) |
91f4d519 | 467 | return 1; |
468 | /* Find size of the object */ | |
038eb4ed | 469 | object_length = mem->reply->content_length; |
cb69b4c7 | 470 | if (object_length < 0) |
07304bf9 | 471 | object_length = contentLen(entry); |
1c3e77cd | 472 | if (mod_time > request->ims) { |
a3d5953d | 473 | debug(33, 3) ("--> YES: entry newer than client\n"); |
91f4d519 | 474 | return 1; |
1c3e77cd | 475 | } else if (mod_time < request->ims) { |
a3d5953d | 476 | debug(33, 3) ("--> NO: entry older than client\n"); |
91f4d519 | 477 | return 0; |
478 | } else if (request->imslen < 0) { | |
a3d5953d | 479 | debug(33, 3) ("--> NO: same LMT, no client length\n"); |
91f4d519 | 480 | return 0; |
481 | } else if (request->imslen == object_length) { | |
a3d5953d | 482 | debug(33, 3) ("--> NO: same LMT, same length\n"); |
91f4d519 | 483 | return 0; |
484 | } else { | |
a3d5953d | 485 | debug(33, 3) ("--> YES: same LMT, different length\n"); |
91f4d519 | 486 | return 1; |
487 | } | |
488 | } | |
b3b64e58 | 489 | |
a90eae18 | 490 | void |
382d851a | 491 | clientPurgeRequest(clientHttpRequest * http) |
a90eae18 | 492 | { |
a90eae18 | 493 | StoreEntry *entry; |
9b312a19 | 494 | ErrorState *err = NULL; |
8d6da567 | 495 | HttpReply *r; |
9b312a19 | 496 | debug(33, 3) ("Config.onoff.enable_purge = %d\n", Config.onoff.enable_purge); |
17a0a4ee | 497 | if (!Config.onoff.enable_purge) { |
79a15e0a | 498 | http->log_type = LOG_TCP_DENIED; |
fe40a877 | 499 | err = errorCon(ERR_ACCESS_DENIED, HTTP_FORBIDDEN); |
9b312a19 | 500 | err->request = requestLink(http->request); |
501 | err->src_addr = http->conn->peer.sin_addr; | |
92695e5e | 502 | http->entry = clientCreateStoreEntry(http, http->request->method, null_request_flags); |
79e0dc20 | 503 | errorAppendEntry(http->entry, err); |
a90eae18 | 504 | return; |
505 | } | |
382d851a | 506 | http->log_type = LOG_TCP_MISS; |
2f9aa365 | 507 | if ((entry = storeGetPublic(http->uri, METHOD_GET)) == NULL) { |
9b312a19 | 508 | http->http_code = HTTP_NOT_FOUND; |
a90eae18 | 509 | } else { |
510 | storeRelease(entry); | |
9b312a19 | 511 | http->http_code = HTTP_OK; |
a90eae18 | 512 | } |
49d3fcb0 | 513 | debug(33, 4) ("clientPurgeRequest: Not modified '%s'\n", |
afa9f1cd | 514 | storeUrl(entry)); |
515 | /* | |
516 | * Make a new entry to hold the reply to be written | |
517 | * to the client. | |
518 | */ | |
92695e5e | 519 | http->entry = clientCreateStoreEntry(http, http->request->method, null_request_flags); |
8d6da567 | 520 | httpReplyReset(r = http->entry->mem_obj->reply); |
521 | httpReplySetHeaders(r, 1.0, http->http_code, NULL, NULL, 0, 0, -1); | |
522 | httpReplySwapOut(r, http->entry); | |
afa9f1cd | 523 | storeComplete(http->entry); |
a90eae18 | 524 | } |
e33ba616 | 525 | |
526 | int | |
ea3a2a69 | 527 | checkNegativeHit(StoreEntry * e) |
e33ba616 | 528 | { |
d46a87a8 | 529 | if (!EBIT_TEST(e->flags, ENTRY_NEGCACHED)) |
ea3a2a69 | 530 | return 0; |
531 | if (e->expires <= squid_curtime) | |
532 | return 0; | |
533 | if (e->store_status != STORE_OK) | |
534 | return 0; | |
535 | return 1; | |
e33ba616 | 536 | } |
7a2f978b | 537 | |
a7c05555 | 538 | void |
0e473d70 | 539 | clientUpdateCounters(clientHttpRequest * http) |
a7c05555 | 540 | { |
ee1679df | 541 | int svc_time = tvSubMsec(http->start, current_time); |
b4e7f82d | 542 | ping_data *i; |
39edba21 | 543 | HierarchyLogEntry *H; |
0e473d70 | 544 | Counter.client_http.requests++; |
d8b83480 | 545 | if (isTcpHit(http->log_type)) |
0e473d70 | 546 | Counter.client_http.hits++; |
0e473d70 | 547 | if (http->request->err_type != ERR_NONE) |
548 | Counter.client_http.errors++; | |
12cf1be2 | 549 | statHistCount(&Counter.client_http.all_svc_time, svc_time); |
ee1679df | 550 | /* |
551 | * The idea here is not to be complete, but to get service times | |
552 | * for only well-defined types. For example, we don't include | |
553 | * LOG_TCP_REFRESH_FAIL_HIT because its not really a cache hit | |
554 | * (we *tried* to validate it, but failed). | |
555 | */ | |
556 | switch (http->log_type) { | |
7c9c84ad | 557 | case LOG_TCP_REFRESH_HIT: |
558 | statHistCount(&Counter.client_http.nh_svc_time, svc_time); | |
559 | break; | |
ee1679df | 560 | case LOG_TCP_IMS_HIT: |
12cf1be2 | 561 | statHistCount(&Counter.client_http.nm_svc_time, svc_time); |
ee1679df | 562 | break; |
563 | case LOG_TCP_HIT: | |
564 | case LOG_TCP_MEM_HIT: | |
b540e168 | 565 | case LOG_TCP_OFFLINE_HIT: |
12cf1be2 | 566 | statHistCount(&Counter.client_http.hit_svc_time, svc_time); |
ee1679df | 567 | break; |
568 | case LOG_TCP_MISS: | |
569 | case LOG_TCP_CLIENT_REFRESH_MISS: | |
12cf1be2 | 570 | statHistCount(&Counter.client_http.miss_svc_time, svc_time); |
ee1679df | 571 | break; |
572 | default: | |
573 | /* make compiler warnings go away */ | |
574 | break; | |
575 | } | |
39edba21 | 576 | H = &http->request->hier; |
69c95dd3 | 577 | switch (H->alg) { |
578 | case PEER_SA_DIGEST: | |
17b6e784 | 579 | Counter.cd.times_used++; |
69c95dd3 | 580 | break; |
581 | case PEER_SA_ICP: | |
582 | Counter.icp.times_used++; | |
b4e7f82d | 583 | i = &H->ping; |
69c95dd3 | 584 | if (0 != i->stop.tv_sec && 0 != i->start.tv_sec) |
585 | statHistCount(&Counter.icp.query_svc_time, | |
586 | tvSubUsec(i->start, i->stop)); | |
587 | if (i->timeout) | |
588 | Counter.icp.query_timeouts++; | |
589 | break; | |
590 | case PEER_SA_NETDB: | |
591 | Counter.netdb.times_used++; | |
592 | break; | |
593 | default: | |
594 | break; | |
17b6e784 | 595 | } |
a7c05555 | 596 | } |
597 | ||
7a2f978b | 598 | static void |
599 | httpRequestFree(void *data) | |
600 | { | |
601 | clientHttpRequest *http = data; | |
602 | clientHttpRequest **H; | |
603 | ConnStateData *conn = http->conn; | |
604 | StoreEntry *entry = http->entry; | |
605 | request_t *request = http->request; | |
606 | MemObject *mem = NULL; | |
93f9abd0 | 607 | debug(33, 3) ("httpRequestFree: %s\n", storeUrl(entry)); |
1b02b5be | 608 | if (!clientCheckTransferDone(http)) { |
7a2f978b | 609 | if (entry) |
610 | storeUnregister(entry, http); /* unregister BEFORE abort */ | |
611 | CheckQuickAbort(http); | |
612 | entry = http->entry; /* reset, IMS might have changed it */ | |
613 | if (entry && entry->ping_status == PING_WAITING) | |
614 | storeReleaseRequest(entry); | |
7a2f978b | 615 | } |
616 | assert(http->log_type < LOG_TYPE_MAX); | |
617 | if (entry) | |
618 | mem = entry->mem_obj; | |
619 | if (http->out.size || http->log_type) { | |
728da2ee | 620 | http->al.icp.opcode = ICP_INVALID; |
ef65d6ca | 621 | http->al.url = http->log_uri; |
622 | debug(33, 9) ("httpRequestFree: al.url='%s'\n", http->al.url); | |
7a2f978b | 623 | if (mem) { |
cb69b4c7 | 624 | http->al.http.code = mem->reply->sline.status; |
038eb4ed | 625 | http->al.http.content_type = strBuf(mem->reply->content_type); |
7a2f978b | 626 | } |
627 | http->al.cache.caddr = conn->log_addr; | |
628 | http->al.cache.size = http->out.size; | |
629 | http->al.cache.code = http->log_type; | |
630 | http->al.cache.msec = tvSubMsec(http->start, current_time); | |
def67559 | 631 | if (request->user_ident[0]) |
632 | http->al.cache.ident = request->user_ident; | |
633 | else | |
634 | http->al.cache.ident = conn->ident.ident; | |
7a2f978b | 635 | if (request) { |
2246b732 | 636 | Packer p; |
637 | MemBuf mb; | |
638 | memBufDefInit(&mb); | |
639 | packerToMemInit(&p, &mb); | |
640 | httpHeaderPackInto(&request->header, &p); | |
7a2f978b | 641 | http->al.http.method = request->method; |
2246b732 | 642 | http->al.headers.request = xstrdup(mb.buf); |
7a2f978b | 643 | http->al.hier = request->hier; |
2246b732 | 644 | packerClean(&p); |
645 | memBufClean(&mb); | |
7a2f978b | 646 | } |
647 | accessLogLog(&http->al); | |
a7c05555 | 648 | clientUpdateCounters(http); |
6f47fbc7 | 649 | clientdbUpdate(conn->peer.sin_addr, http->log_type, PROTO_HTTP, http->out.size); |
7a2f978b | 650 | } |
7a2f978b | 651 | if (http->acl_checklist) |
652 | aclChecklistFree(http->acl_checklist); | |
88aad2e5 | 653 | if (request) |
c24fca87 | 654 | checkFailureRatio(request->err_type, http->al.hier.code); |
23d92c64 | 655 | safe_free(http->uri); |
656 | safe_free(http->log_uri); | |
2246b732 | 657 | safe_free(http->al.headers.request); |
7a2f978b | 658 | safe_free(http->al.headers.reply); |
d192d11f | 659 | stringClean(&http->range_iter.boundary); |
7a2f978b | 660 | if (entry) { |
661 | http->entry = NULL; | |
662 | storeUnregister(entry, http); | |
663 | storeUnlockObject(entry); | |
664 | } | |
665 | /* old_entry might still be set if we didn't yet get the reply | |
1b02b5be | 666 | * code in clientHandleIMSReply() */ |
7a2f978b | 667 | if (http->old_entry) { |
668 | storeUnregister(http->old_entry, http); | |
669 | storeUnlockObject(http->old_entry); | |
670 | http->old_entry = NULL; | |
671 | } | |
672 | requestUnlink(http->request); | |
673 | assert(http != http->next); | |
674 | assert(http->conn->chr != NULL); | |
675 | H = &http->conn->chr; | |
676 | while (*H) { | |
677 | if (*H == http) | |
678 | break; | |
679 | H = &(*H)->next; | |
680 | } | |
681 | assert(*H != NULL); | |
682 | *H = http->next; | |
683 | http->next = NULL; | |
684 | cbdataFree(http); | |
685 | } | |
686 | ||
687 | /* This is a handler normally called by comm_close() */ | |
688 | static void | |
689 | connStateFree(int fd, void *data) | |
690 | { | |
691 | ConnStateData *connState = data; | |
692 | clientHttpRequest *http; | |
93f9abd0 | 693 | debug(33, 3) ("connStateFree: FD %d\n", fd); |
7a2f978b | 694 | assert(connState != NULL); |
79d39a72 | 695 | while ((http = connState->chr) != NULL) { |
7a2f978b | 696 | assert(http->conn == connState); |
697 | assert(connState->chr != connState->chr->next); | |
698 | httpRequestFree(http); | |
699 | } | |
700 | if (connState->ident.fd > -1) | |
701 | comm_close(connState->ident.fd); | |
702 | safe_free(connState->in.buf); | |
59c4d35b | 703 | /* XXX account connState->in.buf */ |
7a2f978b | 704 | pconnHistCount(0, connState->nrequests); |
705 | cbdataFree(connState); | |
706 | } | |
707 | ||
708 | static void | |
99edd1c3 | 709 | clientInterpretRequestHeaders(clientHttpRequest * http) |
7a2f978b | 710 | { |
711 | request_t *request = http->request; | |
99edd1c3 | 712 | const HttpHeader *req_hdr = &request->header; |
713 | #if USE_USERAGENT_LOG | |
714 | const char *str; | |
715 | #endif | |
99edd1c3 | 716 | request->imslen = -1; |
717 | request->ims = httpHeaderGetTime(req_hdr, HDR_IF_MODIFIED_SINCE); | |
718 | if (request->ims > 0) | |
92695e5e | 719 | request->flags.ims = 1; |
99edd1c3 | 720 | if (httpHeaderHas(req_hdr, HDR_PRAGMA)) { |
721 | String s = httpHeaderGetList(req_hdr, HDR_PRAGMA); | |
465dc415 | 722 | if (strListIsMember(&s, "no-cache", ',')) { |
9f60cfdf | 723 | #if HTTP_VIOLATIONS |
cbe3a719 | 724 | if (Config.onoff.reload_into_ims) |
92695e5e | 725 | request->flags.nocache_hack = 1; |
cbe3a719 | 726 | else if (refresh_nocache_hack) |
92695e5e | 727 | request->flags.nocache_hack = 1; |
465dc415 | 728 | else |
9f60cfdf | 729 | #endif |
92695e5e | 730 | request->flags.nocache = 1; |
465dc415 | 731 | } |
99edd1c3 | 732 | stringClean(&s); |
7a2f978b | 733 | } |
4b315324 | 734 | /* ignore range header in non-GETs */ |
735 | if (request->method == METHOD_GET) { | |
736 | request->range = httpHeaderGetRange(req_hdr); | |
737 | if (request->range) | |
92695e5e | 738 | request->flags.range = 1; |
4b315324 | 739 | } |
99edd1c3 | 740 | if (httpHeaderHas(req_hdr, HDR_AUTHORIZATION)) |
92695e5e | 741 | request->flags.auth = 1; |
7a2f978b | 742 | if (request->login[0] != '\0') |
92695e5e | 743 | request->flags.auth = 1; |
99edd1c3 | 744 | if (httpMsgIsPersistent(request->http_ver, req_hdr)) |
92695e5e | 745 | request->flags.proxy_keepalive = 1; |
99edd1c3 | 746 | if (httpHeaderHas(req_hdr, HDR_VIA)) { |
747 | String s = httpHeaderGetList(req_hdr, HDR_VIA); | |
edf3ffdc | 748 | /* ThisCache cannot be a member of Via header, "1.0 ThisCache" can */ |
749 | if (strListIsSubstr(&s, ThisCache, ',')) { | |
9330543e | 750 | debug(33, 1) ("WARNING: Forwarding loop detected for '%s'\n", |
751 | http->uri); | |
752 | debug(33, 1) ("--> %s\n", strBuf(s)); | |
92695e5e | 753 | request->flags.loopdetect = 1; |
7a2f978b | 754 | } |
d21f1c54 | 755 | #if FORW_VIA_DB |
ea285003 | 756 | fvdbCountVia(strBuf(s)); |
d21f1c54 | 757 | #endif |
99edd1c3 | 758 | stringClean(&s); |
d21f1c54 | 759 | } |
7a2f978b | 760 | #if USE_USERAGENT_LOG |
99edd1c3 | 761 | if ((str = httpHeaderGetStr(req_hdr, HDR_USER_AGENT))) |
762 | logUserAgent(fqdnFromAddr(http->conn->peer.sin_addr), str); | |
d21f1c54 | 763 | #endif |
764 | #if FORW_VIA_DB | |
99edd1c3 | 765 | if (httpHeaderHas(req_hdr, HDR_X_FORWARDED_FOR)) { |
766 | String s = httpHeaderGetList(req_hdr, HDR_X_FORWARDED_FOR); | |
767 | fvdbCountForw(strBuf(s)); | |
768 | stringClean(&s); | |
769 | } | |
7a2f978b | 770 | #endif |
99edd1c3 | 771 | request->cache_control = httpHeaderGetCc(req_hdr); |
7a2f978b | 772 | if (request->method == METHOD_TRACE) { |
99edd1c3 | 773 | request->max_forwards = httpHeaderGetInt(req_hdr, HDR_MAX_FORWARDS); |
7a2f978b | 774 | } |
50ddd7a4 | 775 | if (clientCachable(http)) |
92695e5e | 776 | request->flags.cachable = 1; |
50ddd7a4 | 777 | if (clientHierarchical(http)) |
92695e5e | 778 | request->flags.hierarchical = 1; |
95e36d02 | 779 | #if DELAY_POOLS |
780 | if (delayClient(http)) { | |
781 | debug(33, 5) ("clientInterpretRequestHeaders: delay request class %d position %d\n", | |
447e176b | 782 | request->delay_id >> 16, |
783 | request->delay_id & 0xFFFF); | |
95e36d02 | 784 | } |
785 | #endif | |
99edd1c3 | 786 | debug(33, 5) ("clientInterpretRequestHeaders: REQ_NOCACHE = %s\n", |
92695e5e | 787 | request->flags.nocache ? "SET" : "NOT SET"); |
99edd1c3 | 788 | debug(33, 5) ("clientInterpretRequestHeaders: REQ_CACHABLE = %s\n", |
92695e5e | 789 | request->flags.cachable ? "SET" : "NOT SET"); |
99edd1c3 | 790 | debug(33, 5) ("clientInterpretRequestHeaders: REQ_HIERARCHICAL = %s\n", |
92695e5e | 791 | request->flags.hierarchical ? "SET" : "NOT SET"); |
7a2f978b | 792 | } |
793 | ||
31be8b80 | 794 | static int |
efb9218c | 795 | clientCheckContentLength(request_t * r) |
31be8b80 | 796 | { |
205080e2 | 797 | /* We only require a content-length for "upload" methods */ |
798 | if (!pumpMethod(r->method)) | |
0cdcddb9 | 799 | return 1; |
205080e2 | 800 | if (httpHeaderGetInt(&r->header, HDR_CONTENT_LENGTH) < 0) |
31be8b80 | 801 | return 0; |
802 | return 1; | |
803 | } | |
804 | ||
7a2f978b | 805 | static int |
50ddd7a4 | 806 | clientCachable(clientHttpRequest * http) |
7a2f978b | 807 | { |
23d92c64 | 808 | const char *url = http->uri; |
7a2f978b | 809 | request_t *req = http->request; |
810 | method_t method = req->method; | |
bd05e3e3 | 811 | aclCheck_t ch; |
812 | memset(&ch, '\0', sizeof(ch)); | |
813 | /* | |
814 | * Hopefully, nobody really wants 'no_cache' by client's IP | |
815 | * address, but if they do, this should work if they use IP | |
816 | * addresses in their ACLs, or if the client's address is in | |
817 | * the FQDN cache. | |
818 | * | |
819 | * This may not work yet for 'dst' and 'dst_domain' ACLs. | |
820 | */ | |
821 | ch.src_addr = http->conn->peer.sin_addr; | |
822 | ch.request = http->request; | |
79a51871 | 823 | /* |
824 | * aclCheckFast returns 1 for ALLOW and 0 for DENY. The default | |
825 | * is ALLOW, so we require 'no_cache DENY foo' in squid.conf | |
826 | * to indicate uncachable objects. | |
827 | */ | |
95291419 | 828 | if (!aclCheckFast(Config.accessList.noCache, &ch)) |
4b4cd312 | 829 | return 0; |
7a2f978b | 830 | if (req->protocol == PROTO_HTTP) |
831 | return httpCachable(method); | |
832 | /* FTP is always cachable */ | |
833 | if (req->protocol == PROTO_GOPHER) | |
834 | return gopherCachable(url); | |
835 | if (req->protocol == PROTO_WAIS) | |
836 | return 0; | |
837 | if (method == METHOD_CONNECT) | |
838 | return 0; | |
839 | if (method == METHOD_TRACE) | |
840 | return 0; | |
841 | if (req->protocol == PROTO_CACHEOBJ) | |
842 | return 0; | |
843 | return 1; | |
844 | } | |
845 | ||
846 | /* Return true if we can query our neighbors for this object */ | |
847 | static int | |
50ddd7a4 | 848 | clientHierarchical(clientHttpRequest * http) |
7a2f978b | 849 | { |
23d92c64 | 850 | const char *url = http->uri; |
7a2f978b | 851 | request_t *request = http->request; |
852 | method_t method = request->method; | |
853 | const wordlist *p = NULL; | |
854 | ||
855 | /* IMS needs a private key, so we can use the hierarchy for IMS only | |
856 | * if our neighbors support private keys */ | |
92695e5e | 857 | if (request->flags.ims && !neighbors_do_private_keys) |
7a2f978b | 858 | return 0; |
92695e5e | 859 | if (request->flags.auth) |
7a2f978b | 860 | return 0; |
861 | if (method == METHOD_TRACE) | |
862 | return 1; | |
863 | if (method != METHOD_GET) | |
864 | return 0; | |
865 | /* scan hierarchy_stoplist */ | |
866 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
867 | if (strstr(url, p->key)) | |
868 | return 0; | |
92695e5e | 869 | if (request->flags.loopdetect) |
7a2f978b | 870 | return 0; |
871 | if (request->protocol == PROTO_HTTP) | |
872 | return httpCachable(method); | |
873 | if (request->protocol == PROTO_GOPHER) | |
874 | return gopherCachable(url); | |
875 | if (request->protocol == PROTO_WAIS) | |
876 | return 0; | |
877 | if (request->protocol == PROTO_CACHEOBJ) | |
878 | return 0; | |
879 | return 1; | |
880 | } | |
881 | ||
cf50a0af | 882 | int |
7a2f978b | 883 | isTcpHit(log_type code) |
884 | { | |
885 | /* this should be a bitmap for better optimization */ | |
886 | if (code == LOG_TCP_HIT) | |
887 | return 1; | |
888 | if (code == LOG_TCP_IMS_HIT) | |
889 | return 1; | |
890 | if (code == LOG_TCP_REFRESH_FAIL_HIT) | |
891 | return 1; | |
892 | if (code == LOG_TCP_REFRESH_HIT) | |
893 | return 1; | |
894 | if (code == LOG_TCP_NEGATIVE_HIT) | |
895 | return 1; | |
896 | if (code == LOG_TCP_MEM_HIT) | |
897 | return 1; | |
b540e168 | 898 | if (code == LOG_TCP_OFFLINE_HIT) |
899 | return 1; | |
7a2f978b | 900 | return 0; |
901 | } | |
902 | ||
1c3e77cd | 903 | /* |
904 | * returns true if If-Range specs match reply, false otherwise | |
905 | */ | |
a9771e51 | 906 | static int |
907 | clientIfRangeMatch(clientHttpRequest * http, HttpReply * rep) | |
908 | { | |
909 | const TimeOrTag spec = httpHeaderGetTimeOrTag(&http->request->header, HDR_IF_RANGE); | |
910 | /* check for parsing falure */ | |
911 | if (!spec.valid) | |
912 | return 0; | |
913 | /* got an ETag? */ | |
914 | if (spec.tag.str) { | |
915 | ETag rep_tag = httpHeaderGetETag(&rep->header, HDR_ETAG); | |
ebb6e9a0 | 916 | debug(33, 3) ("clientIfRangeMatch: ETags: %s and %s\n", |
a9771e51 | 917 | spec.tag.str, rep_tag.str ? rep_tag.str : "<none>"); |
918 | if (!rep_tag.str) | |
ebb6e9a0 | 919 | return 0; /* entity has no etag to compare with! */ |
a9771e51 | 920 | if (spec.tag.weak || rep_tag.weak) { |
9834a631 | 921 | debug(33, 1) ("clientIfRangeMatch: Weak ETags are not allowed in If-Range: %s ? %s\n", |
a9771e51 | 922 | spec.tag.str, rep_tag.str); |
ebb6e9a0 | 923 | return 0; /* must use strong validator for sub-range requests */ |
a9771e51 | 924 | } |
925 | return etagIsEqual(&rep_tag, &spec.tag); | |
926 | } | |
927 | /* got modification time? */ | |
928 | if (spec.time >= 0) { | |
929 | return http->entry->lastmod <= spec.time; | |
930 | } | |
ebb6e9a0 | 931 | assert(0); /* should not happen */ |
a9771e51 | 932 | return 0; |
933 | } | |
934 | ||
e17d81d3 | 935 | /* adds appropriate Range headers if needed */ |
936 | static void | |
937 | clientBuildRangeHeader(clientHttpRequest * http, HttpReply * rep) | |
938 | { | |
5e2dba16 | 939 | HttpHeader *hdr = rep ? &rep->header : 0; |
e17d81d3 | 940 | const char *range_err = NULL; |
941 | assert(http->request->range); | |
942 | /* check if we still want to do ranges */ | |
9834a631 | 943 | if (!rep) |
944 | range_err = "no [parse-able] reply"; | |
945 | else if (rep->sline.status != HTTP_OK) | |
e17d81d3 | 946 | range_err = "wrong status code"; |
ebb6e9a0 | 947 | else if (httpHeaderHas(hdr, HDR_CONTENT_RANGE)) |
e17d81d3 | 948 | range_err = "origin server does ranges"; |
ebb6e9a0 | 949 | else if (rep->content_length < 0) |
e17d81d3 | 950 | range_err = "unknown length"; |
ebb6e9a0 | 951 | else if (rep->content_length != http->entry->mem_obj->reply->content_length) |
952 | range_err = "INCONSISTENT length"; /* a bug? */ | |
953 | else if (httpHeaderHas(&http->request->header, HDR_IF_RANGE) && !clientIfRangeMatch(http, rep)) | |
a9771e51 | 954 | range_err = "If-Range match failed"; |
ebb6e9a0 | 955 | else if (!httpHdrRangeCanonize(http->request->range, rep->content_length)) |
e17d81d3 | 956 | range_err = "canonization failed"; |
ebb6e9a0 | 957 | else if (httpHdrRangeIsComplex(http->request->range)) |
e17d81d3 | 958 | range_err = "too complex range header"; |
959 | /* get rid of our range specs on error */ | |
960 | if (range_err) { | |
cdedf7db | 961 | debug(33, 2) ("clientBuildRangeHeader: will not do ranges: %s.\n", range_err); |
e17d81d3 | 962 | httpHdrRangeDestroy(http->request->range); |
963 | http->request->range = NULL; | |
964 | } else { | |
965 | const int spec_count = http->request->range->specs.count; | |
cdedf7db | 966 | debug(33, 2) ("clientBuildRangeHeader: range spec count: %d clen: %d\n", |
e17d81d3 | 967 | spec_count, rep->content_length); |
968 | assert(spec_count > 0); | |
a9771e51 | 969 | /* ETags should not be returned with Partial Content replies? */ |
970 | httpHeaderDelById(hdr, HDR_ETAG); | |
ebb6e9a0 | 971 | /* append appropriate header(s) */ |
e17d81d3 | 972 | if (spec_count == 1) { |
973 | HttpHdrRangePos pos = HttpHdrRangeInitPos; | |
889b534a | 974 | const HttpHdrRangeSpec *spec = httpHdrRangeGetSpec(http->request->range, &pos); |
975 | assert(spec); | |
e17d81d3 | 976 | /* append Content-Range */ |
889b534a | 977 | httpHeaderAddContRange(hdr, *spec, rep->content_length); |
e17d81d3 | 978 | /* set new Content-Length to the actual number of OCTETs |
979 | * transmitted in the message-body */ | |
980 | httpHeaderDelById(hdr, HDR_CONTENT_LENGTH); | |
889b534a | 981 | httpHeaderPutInt(hdr, HDR_CONTENT_LENGTH, spec->length); |
982 | debug(33, 2) ("clientBuildRangeHeader: actual content length: %d\n", spec->length); | |
e17d81d3 | 983 | } else { |
984 | /* multipart! */ | |
985 | /* generate boundary string */ | |
986 | http->range_iter.boundary = httpHdrRangeBoundaryStr(http); | |
987 | /* delete old Content-Type, add ours */ | |
988 | httpHeaderDelById(hdr, HDR_CONTENT_TYPE); | |
989 | httpHeaderPutStrf(hdr, HDR_CONTENT_TYPE, | |
990 | "multipart/byteranges; boundary=\"%s\"", | |
991 | strBuf(http->range_iter.boundary)); | |
992 | /* no need for Content-Length in multipart responses */ | |
cded937d | 993 | /* but we must delete the original one if we cannot (yet) |
994 | * calculate the actual length */ | |
995 | httpHeaderDelById(hdr, HDR_CONTENT_LENGTH); | |
e17d81d3 | 996 | } |
997 | } | |
998 | } | |
999 | ||
d192d11f | 1000 | /* filters out unwanted entries from original reply header |
1001 | * adds extra entries if we have more info than origin server | |
1002 | * adds Squid specific entries */ | |
2246b732 | 1003 | static void |
eeb423fb | 1004 | clientBuildReplyHeader(clientHttpRequest * http, HttpReply * rep) |
2246b732 | 1005 | { |
1006 | HttpHeader *hdr = &rep->header; | |
1007 | int is_hit = isTcpHit(http->log_type); | |
7673173d | 1008 | request_t *request = http->request; |
2246b732 | 1009 | #if DONT_FILTER_THESE |
1010 | /* but you might want to if you run Squid as an HTTP accelerator */ | |
d192d11f | 1011 | /* httpHeaderDelById(hdr, HDR_ACCEPT_RANGES); */ |
2246b732 | 1012 | httpHeaderDelById(hdr, HDR_ETAG); |
1013 | #endif | |
1014 | httpHeaderDelById(hdr, HDR_PROXY_CONNECTION); | |
1015 | /* here: Keep-Alive is a field-name, not a connection directive! */ | |
1016 | httpHeaderDelByName(hdr, "Keep-Alive"); | |
1017 | /* remove Set-Cookie if a hit */ | |
1018 | if (is_hit) | |
1019 | httpHeaderDelById(hdr, HDR_SET_COOKIE); | |
1020 | /* handle Connection header */ | |
1021 | if (httpHeaderHas(hdr, HDR_CONNECTION)) { | |
1022 | /* anything that matches Connection list member will be deleted */ | |
1023 | String strConnection = httpHeaderGetList(hdr, HDR_CONNECTION); | |
1024 | const HttpHeaderEntry *e; | |
1025 | HttpHeaderPos pos = HttpHeaderInitPos; | |
7673173d | 1026 | /* |
1027 | * think: on-average-best nesting of the two loops (hdrEntry | |
1028 | * and strListItem) @?@ | |
1029 | */ | |
1030 | /* | |
1031 | * maybe we should delete standard stuff ("keep-alive","close") | |
1032 | * from strConnection first? | |
1033 | */ | |
2246b732 | 1034 | while ((e = httpHeaderGetEntry(hdr, &pos))) { |
1035 | if (strListIsMember(&strConnection, strBuf(e->name), ',')) | |
1036 | httpHeaderDelAt(hdr, pos); | |
1037 | } | |
1038 | httpHeaderDelById(hdr, HDR_CONNECTION); | |
1039 | stringClean(&strConnection); | |
1040 | } | |
d192d11f | 1041 | /* Handle Ranges */ |
7673173d | 1042 | if (request->range) |
e17d81d3 | 1043 | clientBuildRangeHeader(http, rep); |
7673173d | 1044 | /* |
1045 | * Add Age header, not that our header must replace Age headers | |
1046 | * from other caches if any | |
1047 | */ | |
cc66f616 | 1048 | if (http->entry->timestamp > 0) { |
1049 | httpHeaderDelById(hdr, HDR_AGE); | |
7673173d | 1050 | /* |
1051 | * we do not follow HTTP/1.1 precisely here becuase we rely | |
1052 | * on Date header when computing entry->timestamp; we should | |
1053 | * be using _request_ time if Date header is not available | |
1054 | * or if it is out of sync | |
1055 | */ | |
cc66f616 | 1056 | httpHeaderPutInt(hdr, HDR_AGE, |
7673173d | 1057 | http->entry->timestamp <= squid_curtime ? |
1058 | squid_curtime - http->entry->timestamp : 0); | |
cc66f616 | 1059 | } |
2246b732 | 1060 | /* Append X-Cache */ |
1061 | httpHeaderPutStrf(hdr, HDR_X_CACHE, "%s from %s", | |
1062 | is_hit ? "HIT" : "MISS", getMyHostname()); | |
1063 | #if USE_CACHE_DIGESTS | |
1064 | /* Append X-Cache-Lookup: -- temporary hack, to be removed @?@ @?@ */ | |
1065 | httpHeaderPutStrf(hdr, HDR_X_CACHE_LOOKUP, "%s from %s:%d", | |
1066 | http->lookup_type ? http->lookup_type : "NONE", | |
1067 | getMyHostname(), Config.Port.http->i); | |
1068 | #endif | |
1069 | /* Only replies with valid Content-Length can be sent with keep-alive */ | |
7673173d | 1070 | if (request->method != METHOD_HEAD && |
2246b732 | 1071 | http->entry->mem_obj->reply->content_length < 0) |
92695e5e | 1072 | request->flags.proxy_keepalive = 0; |
2246b732 | 1073 | /* Signal keep-alive if needed */ |
7673173d | 1074 | httpHeaderPutStr(hdr, |
1075 | http->flags.accel ? HDR_CONNECTION : HDR_PROXY_CONNECTION, | |
92695e5e | 1076 | request->flags.proxy_keepalive ? "keep-alive" : "close"); |
2246b732 | 1077 | #if ADD_X_REQUEST_URI |
1078 | /* | |
1079 | * Knowing the URI of the request is useful when debugging persistent | |
1080 | * connections in a client; we cannot guarantee the order of http headers, | |
1081 | * but X-Request-URI is likely to be the very last header to ease use from a | |
1082 | * debugger [hdr->entries.count-1]. | |
1083 | */ | |
eeb423fb | 1084 | httpHeaderPutStr(hdr, HDR_X_REQUEST_URI, |
2246b732 | 1085 | http->entry->mem_obj->url ? http->entry->mem_obj->url : http->uri); |
1086 | #endif | |
1087 | } | |
1088 | ||
eeb423fb | 1089 | static HttpReply * |
2246b732 | 1090 | clientBuildReply(clientHttpRequest * http, const char *buf, size_t size) |
1091 | { | |
1092 | HttpReply *rep = httpReplyCreate(); | |
2246b732 | 1093 | if (httpReplyParse(rep, buf)) { |
1094 | /* enforce 1.0 reply version */ | |
1095 | rep->sline.version = 1.0; | |
1096 | /* do header conversions */ | |
1097 | clientBuildReplyHeader(http, rep); | |
d192d11f | 1098 | /* if we do ranges, change status to "Partial Content" */ |
1099 | if (http->request->range) | |
1100 | httpStatusLineSet(&rep->sline, rep->sline.version, HTTP_PARTIAL_CONTENT, NULL); | |
2246b732 | 1101 | } else { |
1102 | /* parsing failure, get rid of the invalid reply */ | |
1103 | httpReplyDestroy(rep); | |
1104 | rep = NULL; | |
9834a631 | 1105 | /* if we were going to do ranges, backoff */ |
1106 | if (http->request->range) | |
782b5f40 | 1107 | clientBuildRangeHeader(http, rep); /* will fail and destroy request->range */ |
2246b732 | 1108 | } |
1109 | return rep; | |
1110 | } | |
7a2f978b | 1111 | |
85071fe3 | 1112 | /* |
1113 | * clientCacheHit should only be called until the HTTP reply headers | |
1114 | * have been parsed. Normally this should be a single call, but | |
1115 | * it might take more than one. As soon as we have the headers, | |
1116 | * we hand off to clientSendMoreData, clientProcessExpired, or | |
1117 | * clientProcessMiss. | |
1118 | */ | |
4c323c5f | 1119 | static void |
7a2f978b | 1120 | clientCacheHit(void *data, char *buf, ssize_t size) |
1121 | { | |
1122 | clientHttpRequest *http = data; | |
49d3fcb0 | 1123 | StoreEntry *e = http->entry; |
1124 | MemObject *mem; | |
1125 | request_t *r = http->request; | |
93f9abd0 | 1126 | debug(33, 3) ("clientCacheHit: %s, %d bytes\n", http->uri, (int) size); |
49d3fcb0 | 1127 | if (http->entry == NULL) { |
cc27d775 | 1128 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
93f9abd0 | 1129 | debug(33, 3) ("clientCacheHit: request aborted\n"); |
49d3fcb0 | 1130 | return; |
1131 | } else if (size < 0) { | |
7a2f978b | 1132 | /* swap in failure */ |
cc27d775 | 1133 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
93f9abd0 | 1134 | debug(33, 3) ("clientCacheHit: swapin failure for %s\n", http->uri); |
7a2f978b | 1135 | http->log_type = LOG_TCP_SWAPFAIL_MISS; |
fdfc0d63 | 1136 | if ((e = http->entry)) { |
1137 | http->entry = NULL; | |
1138 | storeUnregister(e, http); | |
fdfc0d63 | 1139 | storeUnlockObject(e); |
1140 | } | |
fb63215a | 1141 | clientProcessMiss(http); |
49d3fcb0 | 1142 | return; |
1143 | } | |
1144 | assert(size > 0); | |
1145 | mem = e->mem_obj; | |
1146 | assert(e->store_status != STORE_ABORTED); | |
1147 | if (mem->reply->sline.status == 0) { | |
1148 | /* | |
1149 | * we don't have full reply headers yet; either wait for more or | |
1150 | * punt to clientProcessMiss. | |
1151 | */ | |
25944e56 | 1152 | if (e->mem_status == IN_MEMORY || e->store_status == STORE_OK) { |
cc27d775 | 1153 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
49d3fcb0 | 1154 | clientProcessMiss(http); |
cc27d775 | 1155 | } else if (size == CLIENT_SOCK_SZ && http->out.offset == 0) { |
1156 | memFree(MEM_CLIENT_SOCK_BUF, buf); | |
49d3fcb0 | 1157 | clientProcessMiss(http); |
1158 | } else { | |
1159 | debug(33, 3) ("clientCacheHit: waiting for HTTP reply headers\n"); | |
1160 | storeClientCopy(e, | |
1161 | http->out.offset + size, | |
1162 | http->out.offset, | |
cc27d775 | 1163 | CLIENT_SOCK_SZ, |
49d3fcb0 | 1164 | buf, |
1165 | clientCacheHit, | |
1166 | http); | |
1167 | } | |
1168 | return; | |
1169 | } | |
1170 | /* | |
1171 | * Got the headers, now grok them | |
1172 | */ | |
1173 | assert(http->log_type == LOG_TCP_HIT); | |
1174 | if (checkNegativeHit(e)) { | |
1175 | http->log_type = LOG_TCP_NEGATIVE_HIT; | |
1176 | clientSendMoreData(data, buf, size); | |
d657ffad | 1177 | } else if (r->method == METHOD_HEAD) { |
1178 | /* | |
1179 | * RFC 2068 seems to indicate there is no "conditional HEAD" | |
1180 | * request. We cannot validate a cached object for a HEAD | |
1181 | * request, nor can we return 304. | |
1182 | */ | |
1183 | if (e->mem_status == IN_MEMORY) | |
1184 | http->log_type = LOG_TCP_MEM_HIT; | |
1185 | clientSendMoreData(data, buf, size); | |
e25c139f | 1186 | } else if (refreshCheck(e, r, 0) && !http->flags.internal) { |
49d3fcb0 | 1187 | /* |
1188 | * We hold a stale copy; it needs to be validated | |
1189 | */ | |
9689d97c | 1190 | /* |
1191 | * The 'need_validation' flag is used to prevent forwarding | |
1192 | * loops between siblings. If our copy of the object is stale, | |
1193 | * then we should probably only use parents for the validation | |
1194 | * request. Otherwise two siblings could generate a loop if | |
1195 | * both have a stale version of the object. | |
1196 | */ | |
1197 | r->flags.need_validation = 1; | |
0cdcddb9 | 1198 | if (e->lastmod < 0) { |
1199 | /* | |
1c3e77cd | 1200 | * Previous reply didn't have a Last-Modified header, |
1201 | * we cannot revalidate it. | |
1202 | */ | |
1203 | http->log_type = LOG_TCP_MISS; | |
1204 | clientProcessMiss(http); | |
92695e5e | 1205 | } else if (r->flags.nocache) { |
cbe3a719 | 1206 | /* |
1207 | * This did not match a refresh pattern that overrides no-cache | |
1208 | * we should honour the client no-cache header. | |
1209 | */ | |
1210 | http->log_type = LOG_TCP_CLIENT_REFRESH_MISS; | |
1211 | clientProcessMiss(http); | |
1c3e77cd | 1212 | } else if (r->protocol == PROTO_HTTP) { |
cbe3a719 | 1213 | /* |
1214 | * Object needs to be revalidated | |
1215 | * XXX This could apply to FTP as well, if Last-Modified is known. | |
1216 | */ | |
49d3fcb0 | 1217 | http->log_type = LOG_TCP_REFRESH_MISS; |
1218 | clientProcessExpired(http); | |
1219 | } else { | |
cbe3a719 | 1220 | /* |
1221 | * We don't know how to re-validate other protocols. Handle | |
1222 | * them as if the object has expired. | |
1223 | */ | |
49d3fcb0 | 1224 | http->log_type = LOG_TCP_MISS; |
1225 | clientProcessMiss(http); | |
1226 | } | |
cc27d775 | 1227 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
92695e5e | 1228 | } else if (r->flags.ims) { |
49d3fcb0 | 1229 | /* |
1230 | * Handle If-Modified-Since requests from the client | |
1231 | */ | |
1232 | if (mem->reply->sline.status != HTTP_OK) { | |
1233 | debug(33, 4) ("clientCacheHit: Reply code %d != 200\n", | |
1234 | mem->reply->sline.status); | |
cc27d775 | 1235 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
49d3fcb0 | 1236 | clientProcessMiss(http); |
1237 | } else if (modifiedSince(e, http->request)) { | |
815ef411 | 1238 | http->log_type = LOG_TCP_IMS_HIT; |
49d3fcb0 | 1239 | clientSendMoreData(data, buf, size); |
1240 | } else { | |
1241 | MemBuf mb = httpPacked304Reply(e->mem_obj->reply); | |
1242 | http->log_type = LOG_TCP_IMS_HIT; | |
cc27d775 | 1243 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
49d3fcb0 | 1244 | storeUnregister(e, http); |
1245 | storeUnlockObject(e); | |
92695e5e | 1246 | e = clientCreateStoreEntry(http, http->request->method, null_request_flags); |
49d3fcb0 | 1247 | http->entry = e; |
1248 | httpReplyParse(e->mem_obj->reply, mb.buf); | |
1249 | storeAppend(e, mb.buf, mb.size); | |
1250 | memBufClean(&mb); | |
1251 | storeComplete(e); | |
1252 | } | |
1253 | } else { | |
1254 | /* | |
1255 | * plain ol' cache hit | |
1256 | */ | |
1257 | if (e->mem_status == IN_MEMORY) | |
1258 | http->log_type = LOG_TCP_MEM_HIT; | |
b540e168 | 1259 | else if (Config.onoff.offline) |
1260 | http->log_type = LOG_TCP_OFFLINE_HIT; | |
49d3fcb0 | 1261 | clientSendMoreData(data, buf, size); |
7a2f978b | 1262 | } |
1263 | } | |
1264 | ||
d192d11f | 1265 | |
1266 | /* extracts a "range" from *buf and appends them to mb, updating all offsets and such */ | |
1267 | static void | |
ebb6e9a0 | 1268 | clientPackRange(clientHttpRequest * http, HttpHdrRangeIter * i, const char **buf, ssize_t * size, MemBuf * mb) |
d192d11f | 1269 | { |
1270 | const size_t copy_sz = i->debt_size <= *size ? i->debt_size : *size; | |
1271 | off_t body_off = http->out.offset - i->prefix_size; | |
1272 | assert(*size > 0); | |
889b534a | 1273 | assert(i->spec); |
d192d11f | 1274 | /* intersection of "have" and "need" ranges must not be empty */ |
889b534a | 1275 | assert(body_off < i->spec->offset + i->spec->length); |
1276 | assert(body_off + *size > i->spec->offset); | |
d192d11f | 1277 | /* put boundary and headers at the beginning of range in a multi-range */ |
889b534a | 1278 | if (http->request->range->specs.count > 1 && i->debt_size == i->spec->length) { |
ebb6e9a0 | 1279 | HttpReply *rep = http->entry->mem_obj ? /* original reply */ |
1280 | http->entry->mem_obj->reply : NULL; | |
d192d11f | 1281 | HttpHeader hdr; |
1282 | Packer p; | |
1283 | assert(rep); | |
1284 | /* put boundary */ | |
cdedf7db | 1285 | debug(33, 5) ("clientPackRange: appending boundary: %s\n", strBuf(i->boundary)); |
d192d11f | 1286 | /* rfc2046 requires to _prepend_ boundary with <crlf>! */ |
1287 | memBufPrintf(mb, "\r\n--%s\r\n", strBuf(i->boundary)); | |
1288 | httpHeaderInit(&hdr, hoReply); | |
1289 | if (httpHeaderHas(&rep->header, HDR_CONTENT_TYPE)) | |
1290 | httpHeaderPutStr(&hdr, HDR_CONTENT_TYPE, httpHeaderGetStr(&rep->header, HDR_CONTENT_TYPE)); | |
889b534a | 1291 | httpHeaderAddContRange(&hdr, *i->spec, rep->content_length); |
d192d11f | 1292 | packerToMemInit(&p, mb); |
1293 | httpHeaderPackInto(&hdr, &p); | |
1294 | packerClean(&p); | |
1295 | httpHeaderClean(&hdr); | |
1296 | /* append <crlf> (we packed a header, not a reply */ | |
1297 | memBufPrintf(mb, "\r\n"); | |
1298 | } | |
1299 | /* append */ | |
cdedf7db | 1300 | debug(33, 3) ("clientPackRange: appending %d bytes\n", copy_sz); |
d192d11f | 1301 | memBufAppend(mb, *buf, copy_sz); |
1302 | /* update offsets */ | |
1303 | *size -= copy_sz; | |
1304 | i->debt_size -= copy_sz; | |
1305 | body_off += copy_sz; | |
1306 | *buf += copy_sz; | |
ebb6e9a0 | 1307 | http->out.offset = body_off + i->prefix_size; /* sync */ |
d192d11f | 1308 | /* paranoid check */ |
1309 | assert(*size >= 0 && i->debt_size >= 0); | |
1310 | } | |
1311 | ||
889b534a | 1312 | /* returns true if there is still data available to pack more ranges |
1313 | * increments iterator "i" | |
1314 | * used by clientPackMoreRanges */ | |
1315 | static int | |
ebb6e9a0 | 1316 | clientCanPackMoreRanges(const clientHttpRequest * http, HttpHdrRangeIter * i, ssize_t size) |
889b534a | 1317 | { |
1318 | /* first update "i" if needed */ | |
1319 | if (!i->debt_size) { | |
1320 | if ((i->spec = httpHdrRangeGetSpec(http->request->range, &i->pos))) | |
1321 | i->debt_size = i->spec->length; | |
1322 | } | |
ebb6e9a0 | 1323 | assert(!i->debt_size == !i->spec); /* paranoid sync condition */ |
889b534a | 1324 | /* continue condition: need_more_data && have_more_data */ |
1325 | return i->spec && size > 0; | |
1326 | } | |
d192d11f | 1327 | |
1328 | /* extracts "ranges" from buf and appends them to mb, updating all offsets and such */ | |
1329 | /* returns true if we need more data */ | |
1330 | static int | |
ebb6e9a0 | 1331 | clientPackMoreRanges(clientHttpRequest * http, const char *buf, ssize_t size, MemBuf * mb) |
d192d11f | 1332 | { |
1333 | HttpHdrRangeIter *i = &http->range_iter; | |
d192d11f | 1334 | /* offset in range specs does not count the prefix of an http msg */ |
1335 | off_t body_off = http->out.offset - i->prefix_size; | |
1336 | assert(size >= 0); | |
9834a631 | 1337 | /* check: reply was parsed and range iterator was initialized */ |
1338 | assert(i->prefix_size > 0); | |
d192d11f | 1339 | /* filter out data according to range specs */ |
1340 | /* note: order of loop conditions is significant! */ | |
889b534a | 1341 | while (clientCanPackMoreRanges(http, i, size)) { |
ebb6e9a0 | 1342 | off_t start; /* offset of still missing data */ |
889b534a | 1343 | assert(i->spec); |
1344 | start = i->spec->offset + i->spec->length - i->debt_size; | |
cdedf7db | 1345 | debug(33, 2) ("clientPackMoreRanges: in: offset: %d size: %d\n", |
ebb6e9a0 | 1346 | (int) body_off, size); |
cdedf7db | 1347 | debug(33, 2) ("clientPackMoreRanges: out: start: %d spec[%d]: [%d, %d), len: %d debt: %d\n", |
ebb6e9a0 | 1348 | (int) start, (int) i->pos, i->spec->offset, (int) (i->spec->offset + i->spec->length), i->spec->length, i->debt_size); |
1349 | assert(body_off <= start); /* we did not miss it */ | |
d192d11f | 1350 | /* skip up to start */ |
1351 | if (body_off + size > start) { | |
1352 | const size_t skip_size = start - body_off; | |
1353 | body_off = start; | |
1354 | size -= skip_size; | |
1355 | buf += skip_size; | |
1356 | } else { | |
1357 | /* has not reached start yet */ | |
1358 | body_off += size; | |
1359 | size = 0; | |
1360 | buf = NULL; | |
1361 | } | |
1362 | /* put next chunk if any */ | |
1363 | if (size) { | |
ebb6e9a0 | 1364 | http->out.offset = body_off + i->prefix_size; /* sync */ |
d192d11f | 1365 | clientPackRange(http, i, &buf, &size, mb); |
ebb6e9a0 | 1366 | body_off = http->out.offset - i->prefix_size; /* sync */ |
d192d11f | 1367 | } |
1368 | } | |
ebb6e9a0 | 1369 | assert(!i->debt_size == !i->spec); /* paranoid sync condition */ |
cdedf7db | 1370 | debug(33, 2) ("clientPackMoreRanges: buf exhausted: in: offset: %d size: %d need_more: %d\n", |
ebb6e9a0 | 1371 | (int) body_off, size, i->debt_size); |
889b534a | 1372 | if (i->debt_size) { |
1373 | debug(33, 2) ("clientPackMoreRanges: need more: spec[%d]: [%d, %d), len: %d\n", | |
ebb6e9a0 | 1374 | (int) i->pos, i->spec->offset, (int) (i->spec->offset + i->spec->length), i->spec->length); |
889b534a | 1375 | /* skip the data we do not need if possible */ |
ebb6e9a0 | 1376 | if (i->debt_size == i->spec->length) /* at the start of the cur. spec */ |
889b534a | 1377 | body_off = i->spec->offset; |
d192d11f | 1378 | else |
889b534a | 1379 | assert(body_off == i->spec->offset + i->spec->length - i->debt_size); |
ebb6e9a0 | 1380 | } else if (http->request->range->specs.count > 1) { |
d192d11f | 1381 | /* put terminating boundary for multiparts */ |
1382 | memBufPrintf(mb, "\r\n--%s--\r\n", strBuf(i->boundary)); | |
1383 | } | |
ebb6e9a0 | 1384 | http->out.offset = body_off + i->prefix_size; /* sync */ |
889b534a | 1385 | return i->debt_size > 0; |
d192d11f | 1386 | } |
1387 | ||
2246b732 | 1388 | /* |
1389 | * accepts chunk of a http message in buf, parses prefix, filters headers and | |
1390 | * such, writes processed message to the client's socket | |
1391 | */ | |
4c323c5f | 1392 | static void |
7a2f978b | 1393 | clientSendMoreData(void *data, char *buf, ssize_t size) |
1394 | { | |
1395 | clientHttpRequest *http = data; | |
1396 | StoreEntry *entry = http->entry; | |
1397 | ConnStateData *conn = http->conn; | |
1398 | int fd = conn->fd; | |
2246b732 | 1399 | HttpReply *rep = NULL; |
2246b732 | 1400 | const char *body_buf = buf; |
1401 | ssize_t body_size = size; | |
9f086470 | 1402 | MemBuf mb; |
bcd3b08a | 1403 | ssize_t check_size = 0; |
93f9abd0 | 1404 | debug(33, 5) ("clientSendMoreData: %s, %d bytes\n", http->uri, (int) size); |
cc27d775 | 1405 | assert(size <= CLIENT_SOCK_SZ); |
40defb17 | 1406 | assert(http->request != NULL); |
93f9abd0 | 1407 | debug(33, 5) ("clientSendMoreData: FD %d '%s', out.offset=%d \n", |
5f6ac48b | 1408 | fd, storeUrl(entry), (int) http->out.offset); |
7a2f978b | 1409 | if (conn->chr != http) { |
1410 | /* there is another object in progress, defer this one */ | |
aebbcd07 | 1411 | debug(33, 1) ("clientSendMoreData: Deferring %s\n", storeUrl(entry)); |
cc27d775 | 1412 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
7a2f978b | 1413 | return; |
fdfc0d63 | 1414 | } else if (entry && entry->store_status == STORE_ABORTED) { |
d6e928c9 | 1415 | /* call clientWriteComplete so the client socket gets closed */ |
1416 | clientWriteComplete(fd, NULL, 0, COMM_OK, http); | |
cc27d775 | 1417 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
7a2f978b | 1418 | return; |
1419 | } else if (size < 0) { | |
d6e928c9 | 1420 | /* call clientWriteComplete so the client socket gets closed */ |
1421 | clientWriteComplete(fd, NULL, 0, COMM_OK, http); | |
cc27d775 | 1422 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
7a2f978b | 1423 | return; |
1424 | } else if (size == 0) { | |
d6e928c9 | 1425 | /* call clientWriteComplete so the client socket gets closed */ |
1426 | clientWriteComplete(fd, NULL, 0, COMM_OK, http); | |
cc27d775 | 1427 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
7a2f978b | 1428 | return; |
1429 | } | |
40defb17 | 1430 | if (http->out.offset == 0) { |
7a2f978b | 1431 | if (Config.onoff.log_mime_hdrs) { |
2334c194 | 1432 | size_t k; |
1433 | if ((k = headersEnd(buf, size))) { | |
7a2f978b | 1434 | safe_free(http->al.headers.reply); |
1afe05c5 | 1435 | http->al.headers.reply = xcalloc(k + 1, 1); |
2334c194 | 1436 | xstrncpy(http->al.headers.reply, buf, k); |
7a2f978b | 1437 | } |
1438 | } | |
2246b732 | 1439 | rep = clientBuildReply(http, buf, size); |
1440 | if (rep) { | |
1441 | body_size = size - rep->hdr_sz; | |
1442 | assert(body_size >= 0); | |
1f7e91a1 | 1443 | body_buf = buf + rep->hdr_sz; |
d192d11f | 1444 | http->range_iter.prefix_size = rep->hdr_sz; |
2246b732 | 1445 | debug(33, 3) ("clientSendMoreData: Appending %d bytes after %d bytes of headers\n", |
1446 | body_size, rep->hdr_sz); | |
cc27d775 | 1447 | } else if (size < CLIENT_SOCK_SZ && entry->store_status == STORE_PENDING) { |
9f086470 | 1448 | /* wait for more to arrive */ |
1449 | storeClientCopy(entry, | |
1450 | http->out.offset + size, | |
1451 | http->out.offset, | |
cc27d775 | 1452 | CLIENT_SOCK_SZ, |
9f086470 | 1453 | buf, |
1454 | clientSendMoreData, | |
1455 | http); | |
1456 | return; | |
7a2f978b | 1457 | } |
d192d11f | 1458 | /* reset range iterator */ |
1459 | http->range_iter.pos = HttpHdrRangeInitPos; | |
7a2f978b | 1460 | } |
7a2f978b | 1461 | if (http->request->method == METHOD_HEAD) { |
9f086470 | 1462 | if (rep) { |
1463 | /* do not forward body for HEAD replies */ | |
1464 | body_size = 0; | |
9f086470 | 1465 | http->flags.done_copying = 1; |
1466 | } else { | |
782b5f40 | 1467 | /* |
1468 | * If we are here, then store_status == STORE_OK and it | |
1469 | * seems we have a HEAD repsponse which is missing the | |
1470 | * empty end-of-headers line (home.mira.net, phttpd/0.99.72 | |
1471 | * does this). Because clientBuildReply() fails we just | |
1472 | * call this reply a body, set the done_copying flag and | |
1473 | * continue... | |
1474 | */ | |
1475 | http->flags.done_copying = 1; | |
7a2f978b | 1476 | } |
1477 | } | |
d192d11f | 1478 | /* write headers and/or body if any */ |
1f7e91a1 | 1479 | assert(rep || (body_buf && body_size)); |
9f086470 | 1480 | /* init mb; put status line and headers if any */ |
1481 | if (rep) { | |
1482 | mb = httpReplyPack(rep); | |
bcd3b08a | 1483 | http->out.offset += rep->hdr_sz; |
1484 | check_size += rep->hdr_sz; | |
9f086470 | 1485 | httpReplyDestroy(rep); |
1486 | rep = NULL; | |
1487 | } else { | |
1488 | /* leave space for growth incase we do ranges */ | |
cc27d775 | 1489 | memBufInit(&mb, CLIENT_SOCK_SZ, 2 * CLIENT_SOCK_SZ); |
9f086470 | 1490 | } |
1491 | /* append body if any */ | |
1f7e91a1 | 1492 | if (body_buf && body_size) { |
9f086470 | 1493 | if (http->request->range) { |
bcd3b08a | 1494 | /* Only GET requests should have ranges */ |
1495 | assert(http->request->method == METHOD_GET); | |
1496 | /* clientPackMoreRanges() updates http->out.offset */ | |
9f086470 | 1497 | /* force the end of the transfer if we are done */ |
1498 | if (!clientPackMoreRanges(http, body_buf, body_size, &mb)) | |
1499 | http->flags.done_copying = 1; | |
2246b732 | 1500 | } else { |
bcd3b08a | 1501 | http->out.offset += body_size; |
1502 | check_size += body_size; | |
9f086470 | 1503 | memBufAppend(&mb, body_buf, body_size); |
2246b732 | 1504 | } |
2246b732 | 1505 | } |
bbe3cbdc | 1506 | if (!http->request->range && http->request->method == METHOD_GET) |
bcd3b08a | 1507 | assert(check_size == size); |
9f086470 | 1508 | /* write */ |
1509 | comm_write_mbuf(fd, mb, clientWriteComplete, http); | |
2246b732 | 1510 | /* if we don't do it, who will? */ |
cc27d775 | 1511 | memFree(MEM_CLIENT_SOCK_BUF, buf); |
7a2f978b | 1512 | } |
1513 | ||
1a92a1e2 | 1514 | static |
1515 | void | |
1516 | clientKeepaliveNextRequest(clientHttpRequest * http) | |
1517 | { | |
1518 | ConnStateData *conn = http->conn; | |
1519 | StoreEntry *entry; | |
ebb6e9a0 | 1520 | debug(33, 3) ("clientKeepaliveNextRequest: FD %d\n", conn->fd); |
1a92a1e2 | 1521 | conn->defer.until = 0; /* Kick it to read a new request */ |
1522 | httpRequestFree(http); | |
1523 | if ((http = conn->chr) != NULL) { | |
1524 | debug(33, 1) ("clientKeepaliveNextRequest: FD %d Sending next\n", | |
1525 | conn->fd); | |
1526 | entry = http->entry; | |
7ddc902f | 1527 | assert(entry); |
1a92a1e2 | 1528 | if (0 == storeClientCopyPending(entry, http)) { |
1529 | if (entry->store_status == STORE_ABORTED) | |
c07aed63 | 1530 | debug(33, 0) ("clientKeepaliveNextRequest: entry->swap_status == STORE_ABORTED\n"); |
1a92a1e2 | 1531 | storeClientCopy(entry, |
1532 | http->out.offset, | |
1533 | http->out.offset, | |
cc27d775 | 1534 | CLIENT_SOCK_SZ, |
1535 | memAllocate(MEM_CLIENT_SOCK_BUF), | |
1a92a1e2 | 1536 | clientSendMoreData, |
1537 | http); | |
1538 | } | |
1539 | } else { | |
c07aed63 | 1540 | debug(33, 5) ("clientKeepaliveNextRequest: FD %d reading next request\n", |
1a92a1e2 | 1541 | conn->fd); |
1542 | fd_note(conn->fd, "Reading next request"); | |
1543 | /* | |
1544 | * Set the timeout BEFORE calling clientReadRequest(). | |
1545 | */ | |
1546 | commSetTimeout(conn->fd, 15, requestTimeout, conn); | |
1547 | clientReadRequest(conn->fd, conn); /* Read next request */ | |
1548 | /* | |
1549 | * Note, the FD may be closed at this point. | |
1550 | */ | |
1551 | } | |
1552 | } | |
1553 | ||
fc5d6f7f | 1554 | static void |
79a15e0a | 1555 | clientWriteComplete(int fd, char *bufnotused, size_t size, int errflag, void *data) |
7a2f978b | 1556 | { |
1557 | clientHttpRequest *http = data; | |
7a2f978b | 1558 | StoreEntry *entry = http->entry; |
b34ed725 | 1559 | int done; |
7a2f978b | 1560 | http->out.size += size; |
93f9abd0 | 1561 | debug(33, 5) ("clientWriteComplete: FD %d, sz %d, err %d, off %d, len %d\n", |
007b8be4 | 1562 | fd, size, errflag, (int) http->out.offset, entry ? objectLen(entry) : 0); |
d8b83480 | 1563 | if (size > 0) { |
ea285003 | 1564 | kb_incr(&Counter.client_http.kbytes_out, size); |
1565 | if (isTcpHit(http->log_type)) | |
d8b83480 | 1566 | kb_incr(&Counter.client_http.hit_kbytes_out, size); |
1567 | } | |
7a2f978b | 1568 | if (errflag) { |
e55650e3 | 1569 | /* |
1570 | * just close the socket, httpRequestFree will abort if needed | |
1571 | */ | |
7a2f978b | 1572 | comm_close(fd); |
fdfc0d63 | 1573 | } else if (NULL == entry) { |
1574 | comm_close(fd); /* yuk */ | |
7a2f978b | 1575 | } else if (entry->store_status == STORE_ABORTED) { |
7a2f978b | 1576 | comm_close(fd); |
a200bbd2 | 1577 | } else if ((done = clientCheckTransferDone(http)) != 0 || size == 0) { |
93f9abd0 | 1578 | debug(33, 5) ("clientWriteComplete: FD %d transfer is DONE\n", fd); |
7a2f978b | 1579 | /* We're finished case */ |
c07aed63 | 1580 | if (http->entry->mem_obj->reply->content_length < 0) { |
ebb6e9a0 | 1581 | debug(33, 5) ("clientWriteComplete: closing, content_length < 0\n"); |
c07aed63 | 1582 | comm_close(fd); |
1583 | } else if (!done) { | |
ebb6e9a0 | 1584 | debug(33, 5) ("clientWriteComplete: closing, !done\n"); |
c07aed63 | 1585 | comm_close(fd); |
d46a87a8 | 1586 | } else if (EBIT_TEST(entry->flags, ENTRY_BAD_LENGTH)) { |
ebb6e9a0 | 1587 | debug(33, 5) ("clientWriteComplete: closing, ENTRY_BAD_LENGTH\n"); |
7a2f978b | 1588 | comm_close(fd); |
92695e5e | 1589 | } else if (http->request->flags.proxy_keepalive) { |
93f9abd0 | 1590 | debug(33, 5) ("clientWriteComplete: FD %d Keeping Alive\n", fd); |
1a92a1e2 | 1591 | clientKeepaliveNextRequest(http); |
7a2f978b | 1592 | } else { |
1593 | comm_close(fd); | |
1594 | } | |
1595 | } else { | |
1596 | /* More data will be coming from primary server; register with | |
1597 | * storage manager. */ | |
0e473d70 | 1598 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 1599 | debug(33, 0) ("clientWriteComplete 2: entry->swap_status == STORE_ABORTED\n"); |
7a2f978b | 1600 | storeClientCopy(entry, |
1601 | http->out.offset, | |
1602 | http->out.offset, | |
cc27d775 | 1603 | CLIENT_SOCK_SZ, |
1604 | memAllocate(MEM_CLIENT_SOCK_BUF), | |
7a2f978b | 1605 | clientSendMoreData, |
1606 | http); | |
1607 | } | |
1608 | } | |
1609 | ||
038eb4ed | 1610 | /* |
99edd1c3 | 1611 | * client issued a request with an only-if-cached cache-control directive; |
038eb4ed | 1612 | * we did not find a cached object that can be returned without |
99edd1c3 | 1613 | * contacting other servers; |
038eb4ed | 1614 | * respond with a 504 (Gateway Timeout) as suggested in [RFC 2068] |
1615 | */ | |
1616 | static void | |
1617 | clientProcessOnlyIfCachedMiss(clientHttpRequest * http) | |
1618 | { | |
1619 | char *url = http->uri; | |
1620 | request_t *r = http->request; | |
1621 | ErrorState *err = NULL; | |
1622 | debug(33, 4) ("clientProcessOnlyIfCachedMiss: '%s %s'\n", | |
1623 | RequestMethodStr[r->method], url); | |
038eb4ed | 1624 | http->al.http.code = HTTP_GATEWAY_TIMEOUT; |
1625 | err = errorCon(ERR_ONLY_IF_CACHED_MISS, HTTP_GATEWAY_TIMEOUT); | |
1626 | err->request = requestLink(r); | |
1627 | err->src_addr = http->conn->peer.sin_addr; | |
92695e5e | 1628 | http->entry = clientCreateStoreEntry(http, r->method, null_request_flags); |
038eb4ed | 1629 | errorAppendEntry(http->entry, err); |
1630 | } | |
1631 | ||
50ddd7a4 | 1632 | static log_type |
1633 | clientProcessRequest2(clientHttpRequest * http) | |
1634 | { | |
1635 | const request_t *r = http->request; | |
50ddd7a4 | 1636 | StoreEntry *e; |
2f9aa365 | 1637 | e = http->entry = storeGetPublic(http->uri, r->method); |
0c7ccf77 | 1638 | if (r->method == METHOD_HEAD && e == NULL) { |
1639 | /* We can generate a HEAD reply from a cached GET object */ | |
2f9aa365 | 1640 | e = http->entry = storeGetPublic(http->uri, METHOD_GET); |
0c7ccf77 | 1641 | } |
6cfa8966 | 1642 | #if USE_CACHE_DIGESTS |
57b1ff70 | 1643 | http->lookup_type = e ? "HIT" : "MISS"; |
1ca847dd | 1644 | #endif |
49d3fcb0 | 1645 | if (NULL == e) { |
50ddd7a4 | 1646 | /* this object isn't in the cache */ |
ac18f51a | 1647 | debug(33, 3) ("clientProcessRequest2: storeGet() MISS\n"); |
50ddd7a4 | 1648 | return LOG_TCP_MISS; |
d87ebd78 | 1649 | } |
1650 | if (Config.onoff.offline) { | |
ac18f51a | 1651 | debug(33, 3) ("clientProcessRequest2: offline HIT\n"); |
b540e168 | 1652 | http->entry = e; |
1653 | return LOG_TCP_HIT; | |
d87ebd78 | 1654 | } |
1655 | if (!storeEntryValidToSend(e)) { | |
ac18f51a | 1656 | debug(33, 3) ("clientProcessRequest2: !storeEntryValidToSend MISS\n"); |
50ddd7a4 | 1657 | http->entry = NULL; |
1658 | return LOG_TCP_MISS; | |
41587298 | 1659 | } |
1660 | if (EBIT_TEST(e->flags, ENTRY_SPECIAL)) { | |
abe471ef | 1661 | /* Special entries are always hits, no matter what the client says */ |
ac18f51a | 1662 | debug(33, 3) ("clientProcessRequest2: ENTRY_SPECIAL HIT\n"); |
abe471ef | 1663 | http->entry = e; |
1664 | return LOG_TCP_HIT; | |
41587298 | 1665 | } |
9f60cfdf | 1666 | #if HTTP_VIOLATIONS |
41587298 | 1667 | if (r->flags.nocache_hack) { |
ac18f51a | 1668 | /* if nocache_hack is set, nocache should always be clear, right? */ |
1669 | assert(!r->flags.nocache); | |
50ddd7a4 | 1670 | ipcacheReleaseInvalid(r->host); |
41587298 | 1671 | /* continue! */ |
1672 | } | |
9f60cfdf | 1673 | #endif |
41587298 | 1674 | if (r->flags.nocache) { |
ac18f51a | 1675 | debug(33, 3) ("clientProcessRequest2: no-cache REFRESH MISS\n"); |
50ddd7a4 | 1676 | http->entry = NULL; |
cbe3a719 | 1677 | ipcacheReleaseInvalid(r->host); |
ee1679df | 1678 | return LOG_TCP_CLIENT_REFRESH_MISS; |
7ddc902f | 1679 | } |
1680 | if (r->range && httpHdrRangeWillBeComplex(r->range)) { | |
1681 | /* | |
1682 | * Some clients break if we return "200 OK" for a Range | |
1683 | * request. We would have to return "200 OK" for a _complex_ | |
1684 | * Range request that is also a HIT. Thus, let's prevent HITs | |
1685 | * on complex Range requests | |
1686 | */ | |
ac18f51a | 1687 | debug(33, 3) ("clientProcessRequest2: complex range MISS\n"); |
5d679edb | 1688 | http->entry = NULL; |
1689 | return LOG_TCP_MISS; | |
50ddd7a4 | 1690 | } |
ac18f51a | 1691 | debug(33, 3) ("clientProcessRequest2: default HIT\n"); |
41587298 | 1692 | http->entry = e; |
1693 | return LOG_TCP_HIT; | |
50ddd7a4 | 1694 | } |
1695 | ||
4c323c5f | 1696 | static void |
fb63215a | 1697 | clientProcessRequest(clientHttpRequest * http) |
7a2f978b | 1698 | { |
23d92c64 | 1699 | char *url = http->uri; |
50ddd7a4 | 1700 | request_t *r = http->request; |
fb63215a | 1701 | int fd = http->conn->fd; |
1bea1d83 | 1702 | HttpReply *rep; |
93f9abd0 | 1703 | debug(33, 4) ("clientProcessRequest: %s '%s'\n", |
50ddd7a4 | 1704 | RequestMethodStr[r->method], |
7a2f978b | 1705 | url); |
fb63215a | 1706 | if (r->method == METHOD_CONNECT) { |
7a2f978b | 1707 | http->log_type = LOG_TCP_MISS; |
ea0efb98 | 1708 | sslStart(fd, url, r, &http->out.size); |
1709 | return; | |
fb63215a | 1710 | } else if (r->method == METHOD_PURGE) { |
ea0efb98 | 1711 | clientPurgeRequest(http); |
1712 | return; | |
fb63215a | 1713 | } else if (r->method == METHOD_TRACE) { |
50ddd7a4 | 1714 | if (r->max_forwards == 0) { |
92695e5e | 1715 | http->entry = clientCreateStoreEntry(http, r->method, null_request_flags); |
b17b22eb | 1716 | storeReleaseRequest(http->entry); |
1717 | storeBuffer(http->entry); | |
1bea1d83 | 1718 | rep = httpReplyCreate(); |
31be8b80 | 1719 | httpReplySetHeaders(rep, 1.0, HTTP_OK, NULL, "text/plain", |
2246b732 | 1720 | httpRequestPrefixLen(r), 0, squid_curtime); |
1bea1d83 | 1721 | httpReplySwapOut(rep, http->entry); |
1722 | httpReplyDestroy(rep); | |
2246b732 | 1723 | httpRequestSwapOut(r, http->entry); |
b17b22eb | 1724 | storeComplete(http->entry); |
7a2f978b | 1725 | return; |
1726 | } | |
1727 | /* yes, continue */ | |
6addbd81 | 1728 | http->log_type = LOG_TCP_MISS; |
efb9218c | 1729 | } else if (pumpMethod(r->method)) { |
fb63215a | 1730 | http->log_type = LOG_TCP_MISS; |
31be8b80 | 1731 | /* XXX oof, POST can be cached! */ |
54220df8 | 1732 | pumpInit(fd, r, http->uri); |
31be8b80 | 1733 | } else { |
efb9218c | 1734 | http->log_type = clientProcessRequest2(http); |
7a2f978b | 1735 | } |
93f9abd0 | 1736 | debug(33, 4) ("clientProcessRequest: %s for '%s'\n", |
7a2f978b | 1737 | log_tags[http->log_type], |
23d92c64 | 1738 | http->uri); |
7a2f978b | 1739 | http->out.offset = 0; |
49d3fcb0 | 1740 | if (NULL != http->entry) { |
1741 | storeLockObject(http->entry); | |
1742 | storeCreateMemObject(http->entry, http->uri, http->log_uri); | |
1743 | storeClientListAdd(http->entry, http); | |
447e176b | 1744 | #if DELAY_POOLS |
1745 | delaySetStoreClient(http->entry, http, http->request->delay_id); | |
1746 | #endif | |
49d3fcb0 | 1747 | http->entry->refcount++; |
1748 | storeClientCopy(http->entry, | |
7a2f978b | 1749 | http->out.offset, |
1750 | http->out.offset, | |
cc27d775 | 1751 | CLIENT_SOCK_SZ, |
1752 | memAllocate(MEM_CLIENT_SOCK_BUF), | |
7a2f978b | 1753 | clientCacheHit, |
1754 | http); | |
49d3fcb0 | 1755 | } else { |
1756 | /* MISS CASE */ | |
1757 | http->log_type = LOG_TCP_MISS; | |
fb63215a | 1758 | clientProcessMiss(http); |
7a2f978b | 1759 | } |
1760 | } | |
1761 | ||
1762 | /* | |
1763 | * Prepare to fetch the object as it's a cache miss of some kind. | |
1764 | */ | |
1765 | static void | |
fb63215a | 1766 | clientProcessMiss(clientHttpRequest * http) |
7a2f978b | 1767 | { |
23d92c64 | 1768 | char *url = http->uri; |
f44af445 | 1769 | request_t *r = http->request; |
7a2f978b | 1770 | ErrorState *err = NULL; |
93f9abd0 | 1771 | debug(33, 4) ("clientProcessMiss: '%s %s'\n", |
f44af445 | 1772 | RequestMethodStr[r->method], url); |
79e0dc20 | 1773 | /* |
1774 | * We might have a left-over StoreEntry from a failed cache hit | |
1775 | * or IMS request. | |
1776 | */ | |
1777 | if (http->entry) { | |
d46a87a8 | 1778 | if (EBIT_TEST(http->entry->flags, ENTRY_SPECIAL)) |
12784378 | 1779 | debug(33, 0) ("clientProcessMiss: miss on a special object (%s).\n", url); |
79e0dc20 | 1780 | storeUnregister(http->entry, http); |
1781 | storeUnlockObject(http->entry); | |
1782 | http->entry = NULL; | |
1783 | } | |
7c1d4010 | 1784 | if (clientOnlyIfCached(http)) { |
1785 | clientProcessOnlyIfCachedMiss(http); | |
1786 | return; | |
1787 | } | |
9330543e | 1788 | /* |
1789 | * Deny loops when running in accelerator/transproxy mode. | |
1790 | */ | |
92695e5e | 1791 | if (http->flags.accel && r->flags.loopdetect) { |
9330543e | 1792 | http->al.http.code = HTTP_FORBIDDEN; |
1793 | err = errorCon(ERR_ACCESS_DENIED, HTTP_FORBIDDEN); | |
1794 | err->request = requestLink(r); | |
1795 | err->src_addr = http->conn->peer.sin_addr; | |
92695e5e | 1796 | http->entry = clientCreateStoreEntry(http, r->method, null_request_flags); |
9330543e | 1797 | errorAppendEntry(http->entry, err); |
1798 | return; | |
1799 | } | |
79e0dc20 | 1800 | assert(http->out.offset == 0); |
f44af445 | 1801 | http->entry = clientCreateStoreEntry(http, r->method, r->flags); |
79e0dc20 | 1802 | http->entry->refcount++; |
1da5651f | 1803 | if (http->flags.internal) |
1804 | r->protocol = PROTO_INTERNAL; | |
d1061d2b | 1805 | fwdStart(http->conn->fd, http->entry, r, http->conn->peer.sin_addr); |
7a2f978b | 1806 | } |
1807 | ||
99edd1c3 | 1808 | static clientHttpRequest * |
1809 | parseHttpRequestAbort(ConnStateData * conn, const char *uri) | |
1810 | { | |
1811 | clientHttpRequest *http = xcalloc(1, sizeof(clientHttpRequest)); | |
1812 | cbdataAdd(http, MEM_NONE); | |
1813 | http->conn = conn; | |
1814 | http->start = current_time; | |
1815 | http->req_sz = conn->in.offset; | |
1816 | http->uri = xstrdup(uri); | |
1817 | http->log_uri = xstrdup(uri); | |
d192d11f | 1818 | http->range_iter.boundary = StringNull; |
99edd1c3 | 1819 | return http; |
1820 | } | |
1821 | ||
7a2f978b | 1822 | /* |
1823 | * parseHttpRequest() | |
1824 | * | |
1825 | * Returns | |
1826 | * NULL on error or incomplete request | |
1827 | * a clientHttpRequest structure on success | |
1828 | */ | |
1829 | static clientHttpRequest * | |
1830 | parseHttpRequest(ConnStateData * conn, method_t * method_p, int *status, | |
ea285003 | 1831 | char **prefix_p, size_t * req_line_sz_p) |
7a2f978b | 1832 | { |
1833 | char *inbuf = NULL; | |
1834 | char *mstr = NULL; | |
1835 | char *url = NULL; | |
1836 | char *req_hdr = NULL; | |
7a2f978b | 1837 | float http_ver; |
1838 | char *token = NULL; | |
1839 | char *t = NULL; | |
2334c194 | 1840 | char *end; |
7a2f978b | 1841 | int free_request = 0; |
1842 | size_t header_sz; /* size of headers, not including first line */ | |
ea285003 | 1843 | size_t prefix_sz; /* size of whole request (req-line + headers) */ |
7a2f978b | 1844 | size_t url_sz; |
1845 | method_t method; | |
1846 | clientHttpRequest *http = NULL; | |
5cafc1d6 | 1847 | #if IPF_TRANSPARENT |
1848 | struct natlookup natLookup; | |
1849 | static int natfd = -1; | |
1850 | #endif | |
7a2f978b | 1851 | |
1852 | /* Make sure a complete line has been received */ | |
99edd1c3 | 1853 | if ((t = strchr(conn->in.buf, '\n')) == NULL) { |
93f9abd0 | 1854 | debug(33, 5) ("Incomplete request line, waiting for more data\n"); |
7a2f978b | 1855 | *status = 0; |
08e70b8f | 1856 | *prefix_p = NULL; |
1857 | *method_p = METHOD_NONE; | |
7a2f978b | 1858 | return NULL; |
1859 | } | |
99edd1c3 | 1860 | *req_line_sz_p = t - conn->in.buf; |
7a2f978b | 1861 | /* Use xmalloc/xmemcpy instead of xstrdup because inbuf might |
1862 | * contain NULL bytes; especially for POST data */ | |
1863 | inbuf = xmalloc(conn->in.offset + 1); | |
1864 | xmemcpy(inbuf, conn->in.buf, conn->in.offset); | |
1865 | *(inbuf + conn->in.offset) = '\0'; | |
1866 | ||
99edd1c3 | 1867 | /* pre-set these values to make aborting simpler */ |
1868 | *prefix_p = inbuf; | |
1869 | *method_p = METHOD_NONE; | |
1870 | *status = -1; | |
1871 | ||
7a2f978b | 1872 | /* Look for request method */ |
1873 | if ((mstr = strtok(inbuf, "\t ")) == NULL) { | |
93f9abd0 | 1874 | debug(33, 1) ("parseHttpRequest: Can't get request method\n"); |
99edd1c3 | 1875 | return parseHttpRequestAbort(conn, "error:invalid-request-method"); |
7a2f978b | 1876 | } |
1877 | method = urlParseMethod(mstr); | |
1878 | if (method == METHOD_NONE) { | |
93f9abd0 | 1879 | debug(33, 1) ("parseHttpRequest: Unsupported method '%s'\n", mstr); |
99edd1c3 | 1880 | return parseHttpRequestAbort(conn, "error:unsupported-request-method"); |
7a2f978b | 1881 | } |
93f9abd0 | 1882 | debug(33, 5) ("parseHttpRequest: Method is '%s'\n", mstr); |
3775d53c | 1883 | *method_p = method; |
7a2f978b | 1884 | |
d548ee64 | 1885 | /* look for URL+HTTP/x.x */ |
1886 | if ((url = strtok(NULL, "\r\n")) == NULL) { | |
93f9abd0 | 1887 | debug(33, 1) ("parseHttpRequest: Missing URL\n"); |
99edd1c3 | 1888 | return parseHttpRequestAbort(conn, "error:missing-url"); |
7a2f978b | 1889 | } |
d548ee64 | 1890 | t = url + strlen(url); |
1891 | assert(*t == '\0'); | |
1892 | token = NULL; | |
1893 | while (t > url) { | |
1894 | t--; | |
1895 | if (isspace(*t) && !strncmp(t + 1, "HTTP/", 5)) { | |
1896 | token = t + 1; | |
1897 | break; | |
1898 | } | |
1899 | } | |
1900 | while (t > url && isspace(*t)) | |
1901 | *(t--) = '\0'; | |
1902 | debug(33, 5) ("parseHttpRequest: URI is '%s'\n", url); | |
1903 | if (token == NULL) { | |
93f9abd0 | 1904 | debug(33, 3) ("parseHttpRequest: Missing HTTP identifier\n"); |
46052490 | 1905 | #if RELAXED_HTTP_PARSER |
1906 | http_ver = (float) 0.9; /* wild guess */ | |
1907 | #else | |
99edd1c3 | 1908 | return parseHttpRequestAbort(conn, "error:missing-http-ident"); |
7518fce5 | 1909 | #endif |
99edd1c3 | 1910 | } else { |
7518fce5 | 1911 | http_ver = (float) atof(token + 5); |
99edd1c3 | 1912 | } |
7a2f978b | 1913 | |
1914 | /* Check if headers are received */ | |
754b9ce9 | 1915 | req_hdr = t; |
8d9810cd | 1916 | header_sz = headersEnd(req_hdr, conn->in.offset - (req_hdr - inbuf)); |
2334c194 | 1917 | if (0 == header_sz) { |
1a92a1e2 | 1918 | debug(33, 3) ("parseHttpRequest: header_sz == 0\n"); |
7a2f978b | 1919 | *status = 0; |
1920 | return NULL; | |
1921 | } | |
754b9ce9 | 1922 | /* |
99edd1c3 | 1923 | * Skip whitespace at the end of the first line, up to the |
754b9ce9 | 1924 | * first newline. |
1925 | */ | |
1926 | while (isspace(*req_hdr)) { | |
1927 | header_sz--; | |
1928 | if (*(req_hdr++) == '\n') | |
1929 | break; | |
1930 | } | |
1931 | assert(header_sz > 0); | |
1932 | debug(33, 3) ("parseHttpRequest: req_hdr = {%s}\n", req_hdr); | |
2334c194 | 1933 | end = req_hdr + header_sz; |
04990e2d | 1934 | debug(33, 3) ("parseHttpRequest: end = {%s}\n", end); |
99edd1c3 | 1935 | |
99edd1c3 | 1936 | prefix_sz = end - inbuf; |
1937 | *req_line_sz_p = req_hdr - inbuf; | |
ea285003 | 1938 | debug(33, 3) ("parseHttpRequest: prefix_sz = %d, req_line_sz = %d\n", |
99edd1c3 | 1939 | (int) prefix_sz, (int) *req_line_sz_p); |
1940 | assert(prefix_sz <= conn->in.offset); | |
7a2f978b | 1941 | |
1942 | /* Ok, all headers are received */ | |
1943 | http = xcalloc(1, sizeof(clientHttpRequest)); | |
3f6c0fb2 | 1944 | cbdataAdd(http, MEM_NONE); |
7a2f978b | 1945 | http->http_ver = http_ver; |
1946 | http->conn = conn; | |
1947 | http->start = current_time; | |
99edd1c3 | 1948 | http->req_sz = prefix_sz; |
d192d11f | 1949 | http->range_iter.boundary = StringNull; |
99edd1c3 | 1950 | *prefix_p = xmalloc(prefix_sz + 1); |
1951 | xmemcpy(*prefix_p, conn->in.buf, prefix_sz); | |
1952 | *(*prefix_p + prefix_sz) = '\0'; | |
7a2f978b | 1953 | |
ea285003 | 1954 | debug(33, 5) ("parseHttpRequest: Request Header is\n%s\n", (*prefix_p) + *req_line_sz_p); |
23d92c64 | 1955 | /* Assign http->uri */ |
7a2f978b | 1956 | if ((t = strchr(url, '\n'))) /* remove NL */ |
1957 | *t = '\0'; | |
1958 | if ((t = strchr(url, '\r'))) /* remove CR */ | |
1959 | *t = '\0'; | |
1960 | if ((t = strchr(url, '#'))) /* remove HTML anchors */ | |
1961 | *t = '\0'; | |
1962 | ||
4162ee3b | 1963 | /* handle internal objects */ |
1da5651f | 1964 | if (internalCheck(url)) { |
4162ee3b | 1965 | /* prepend our name & port */ |
1da5651f | 1966 | http->uri = xstrdup(internalLocalUri(NULL, url)); |
77ed547a | 1967 | http->flags.internal = 1; |
4162ee3b | 1968 | } |
7a2f978b | 1969 | /* see if we running in Config2.Accel.on, if so got to convert it to URL */ |
4162ee3b | 1970 | else if (Config2.Accel.on && *url == '/') { |
7a2f978b | 1971 | /* prepend the accel prefix */ |
dbfed404 | 1972 | if (opt_accel_uses_host && (t = mime_get_header(req_hdr, "Host"))) { |
7a2f978b | 1973 | /* If a Host: header was specified, use it to build the URL |
1974 | * instead of the one in the Config file. */ | |
1975 | /* | |
1976 | * XXX Use of the Host: header here opens a potential | |
1977 | * security hole. There are no checks that the Host: value | |
1978 | * corresponds to one of your servers. It might, for example, | |
1979 | * refer to www.playboy.com. The 'dst' and/or 'dst_domain' ACL | |
1980 | * types should be used to prevent httpd-accelerators | |
1981 | * handling requests for non-local servers */ | |
1982 | strtok(t, " :/;@"); | |
12fc602c | 1983 | url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1984 | strlen(t); | |
23d92c64 | 1985 | http->uri = xcalloc(url_sz, 1); |
1986 | snprintf(http->uri, url_sz, "http://%s:%d%s", | |
7a2f978b | 1987 | t, (int) Config.Accel.port, url); |
dbfed404 | 1988 | } else if (vhost_mode) { |
1989 | /* Put the local socket IP address as the hostname */ | |
1990 | url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1991 | http->uri = xcalloc(url_sz, 1); | |
5cafc1d6 | 1992 | #if IPF_TRANSPARENT |
135171fe | 1993 | natLookup.nl_inport = http->conn->me.sin_port; |
1994 | natLookup.nl_outport = http->conn->peer.sin_port; | |
1995 | natLookup.nl_inip = http->conn->me.sin_addr; | |
1996 | natLookup.nl_outip = http->conn->peer.sin_addr; | |
1997 | natLookup.nl_flags = IPN_TCP; | |
1998 | if (natfd < 0) | |
1999 | natfd = open(IPL_NAT, O_RDONLY, 0); | |
2000 | if (natfd < 0) { | |
2001 | debug(50, 1) ("parseHttpRequest: NAT open failed: %s\n", | |
2002 | xstrerror()); | |
ac18f51a | 2003 | return parseHttpRequestAbort(conn, "error:nat-open-failed"); |
5cafc1d6 | 2004 | } |
135171fe | 2005 | if (ioctl(natfd, SIOCGNATL, &natLookup) < 0) { |
ac18f51a | 2006 | if (errno != ESRCH) { |
2007 | debug(50, 1) ("parseHttpRequest: NAT lookup failed: ioctl(SIOCGNATL)\n"); | |
2008 | close(natfd); | |
2009 | natfd = -1; | |
2010 | return parseHttpRequestAbort(conn, "error:nat-lookup-failed"); | |
2011 | } else | |
2012 | snprintf(http->uri, url_sz, "http://%s:%d%s", | |
2013 | inet_ntoa(http->conn->me.sin_addr), | |
2014 | (int) Config.Accel.port, | |
2015 | url); | |
2016 | } else | |
2017 | snprintf(http->uri, url_sz, "http://%s:%d%s", | |
2018 | inet_ntoa(natLookup.nl_realip), | |
2019 | (int) Config.Accel.port, | |
2020 | url); | |
5cafc1d6 | 2021 | #else |
dbfed404 | 2022 | snprintf(http->uri, url_sz, "http://%s:%d%s", |
2023 | inet_ntoa(http->conn->me.sin_addr), | |
2024 | (int) Config.Accel.port, | |
2025 | url); | |
5cafc1d6 | 2026 | #endif |
93f9abd0 | 2027 | debug(33, 5) ("VHOST REWRITE: '%s'\n", http->uri); |
7a2f978b | 2028 | } else { |
2029 | url_sz = strlen(Config2.Accel.prefix) + strlen(url) + | |
2030 | Config.appendDomainLen + 1; | |
23d92c64 | 2031 | http->uri = xcalloc(url_sz, 1); |
2032 | snprintf(http->uri, url_sz, "%s%s", Config2.Accel.prefix, url); | |
7a2f978b | 2033 | } |
77ed547a | 2034 | http->flags.accel = 1; |
7a2f978b | 2035 | } else { |
2036 | /* URL may be rewritten later, so make extra room */ | |
2037 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
23d92c64 | 2038 | http->uri = xcalloc(url_sz, 1); |
2039 | strcpy(http->uri, url); | |
77ed547a | 2040 | http->flags.accel = 0; |
7a2f978b | 2041 | } |
d548ee64 | 2042 | if (!stringHasWhitespace(http->uri)) |
2043 | http->log_uri = xstrdup(http->uri); | |
2044 | else | |
2045 | http->log_uri = xstrdup(rfc1738_escape(http->uri)); | |
93f9abd0 | 2046 | debug(33, 5) ("parseHttpRequest: Complete request received\n"); |
7a2f978b | 2047 | if (free_request) |
2048 | safe_free(url); | |
2049 | xfree(inbuf); | |
7a2f978b | 2050 | *status = 1; |
2051 | return http; | |
2052 | } | |
2053 | ||
2054 | static int | |
79d39a72 | 2055 | clientReadDefer(int fdnotused, void *data) |
7a2f978b | 2056 | { |
2057 | ConnStateData *conn = data; | |
2058 | return conn->defer.until > squid_curtime; | |
2059 | } | |
2060 | ||
2061 | static void | |
2062 | clientReadRequest(int fd, void *data) | |
2063 | { | |
2064 | ConnStateData *conn = data; | |
2065 | int parser_return_code = 0; | |
2066 | int k; | |
2067 | request_t *request = NULL; | |
7a2f978b | 2068 | int size; |
7a2f978b | 2069 | method_t method; |
2070 | clientHttpRequest *http = NULL; | |
2071 | clientHttpRequest **H = NULL; | |
08e70b8f | 2072 | char *prefix = NULL; |
7a2f978b | 2073 | ErrorState *err = NULL; |
2074 | fde *F = &fd_table[fd]; | |
44db45e8 | 2075 | int len = conn->in.size - conn->in.offset - 1; |
93f9abd0 | 2076 | debug(33, 4) ("clientReadRequest: FD %d: reading request...\n", fd); |
886f2785 | 2077 | Counter.syscalls.sock.reads++; |
7a2f978b | 2078 | size = read(fd, conn->in.buf + conn->in.offset, len); |
d8b83480 | 2079 | if (size > 0) { |
ea285003 | 2080 | fd_bytes(fd, size, FD_READ); |
2081 | kb_incr(&Counter.client_http.kbytes_in, size); | |
d8b83480 | 2082 | } |
44db45e8 | 2083 | /* |
2084 | * Don't reset the timeout value here. The timeout value will be | |
2085 | * set to Config.Timeout.request by httpAccept() and | |
2086 | * clientWriteComplete(), and should apply to the request as a | |
2087 | * whole, not individual read() calls. Plus, it breaks our | |
2088 | * lame half-close detection | |
2089 | */ | |
2090 | commSetSelect(fd, COMM_SELECT_READ, clientReadRequest, conn, 0); | |
7a2f978b | 2091 | if (size == 0) { |
2092 | if (conn->chr == NULL) { | |
2093 | /* no current or pending requests */ | |
2094 | comm_close(fd); | |
2095 | return; | |
ea285003 | 2096 | } else if (!Config.onoff.half_closed_clients) { |
2097 | /* admin doesn't want to support half-closed client sockets */ | |
2098 | comm_close(fd); | |
2099 | return; | |
7a2f978b | 2100 | } |
2101 | /* It might be half-closed, we can't tell */ | |
93f9abd0 | 2102 | debug(33, 5) ("clientReadRequest: FD %d closed?\n", fd); |
58a6c186 | 2103 | F->flags.socket_eof = 1; |
7a2f978b | 2104 | conn->defer.until = squid_curtime + 1; |
2105 | conn->defer.n++; | |
44db45e8 | 2106 | fd_note(fd, "half-closed"); |
7a2f978b | 2107 | return; |
2108 | } else if (size < 0) { | |
6d3caf23 | 2109 | if (!ignoreErrno(errno)) { |
7a2f978b | 2110 | debug(50, 2) ("clientReadRequest: FD %d: %s\n", fd, xstrerror()); |
2111 | comm_close(fd); | |
ebf4efff | 2112 | return; |
47130615 | 2113 | } else if (conn->in.offset == 0) { |
7c1d4010 | 2114 | debug(50, 2) ("clientReadRequest: FD %d: no data to process (%s)\n", fd, xstrerror()); |
ebf4efff | 2115 | return; |
7a2f978b | 2116 | } |
ebf4efff | 2117 | /* Continue to process previously read data */ |
47130615 | 2118 | size = 0; |
7a2f978b | 2119 | } |
2120 | conn->in.offset += size; | |
5ede6c8f | 2121 | /* Skip leading (and trailing) whitespace */ |
7a2f978b | 2122 | while (conn->in.offset > 0) { |
ebf4efff | 2123 | int nrequests; |
cff0c749 | 2124 | size_t req_line_sz; |
9a6f98a5 | 2125 | while (conn->in.offset > 0 && isspace(conn->in.buf[0])) { |
2126 | xmemmove(conn->in.buf, conn->in.buf + 1, conn->in.offset - 1); | |
2127 | conn->in.offset--; | |
2128 | } | |
2129 | conn->in.buf[conn->in.offset] = '\0'; /* Terminate the string */ | |
2130 | if (conn->in.offset == 0) | |
2131 | break; | |
ebf4efff | 2132 | /* Limit the number of concurrent requests to 2 */ |
2133 | for (H = &conn->chr, nrequests = 0; *H; H = &(*H)->next, nrequests++); | |
2134 | if (nrequests >= 2) { | |
93f9abd0 | 2135 | debug(33, 2) ("clientReadRequest: FD %d max concurrent requests reached\n", fd); |
2136 | debug(33, 5) ("clientReadRequest: FD %d defering new request until one is done\n", fd); | |
47130615 | 2137 | conn->defer.until = squid_curtime + 100; /* Reset when a request is complete */ |
ebf4efff | 2138 | break; |
2139 | } | |
2140 | /* Process request */ | |
7a2f978b | 2141 | http = parseHttpRequest(conn, |
2142 | &method, | |
2143 | &parser_return_code, | |
99edd1c3 | 2144 | &prefix, |
2145 | &req_line_sz); | |
13f11a4a | 2146 | if (!http) |
2147 | safe_free(prefix); | |
7a2f978b | 2148 | if (http) { |
2149 | assert(http->req_sz > 0); | |
2150 | conn->in.offset -= http->req_sz; | |
2151 | assert(conn->in.offset >= 0); | |
ebb6e9a0 | 2152 | debug(33, 5) ("conn->in.offset = %d\n", (int) conn->in.offset); |
6fa92aa2 | 2153 | /* |
2154 | * If we read past the end of this request, move the remaining | |
2155 | * data to the beginning | |
2156 | */ | |
2157 | if (conn->in.offset > 0) | |
dbfed404 | 2158 | xmemmove(conn->in.buf, conn->in.buf + http->req_sz, conn->in.offset); |
ebf4efff | 2159 | /* add to the client request queue */ |
7a2f978b | 2160 | for (H = &conn->chr; *H; H = &(*H)->next); |
2161 | *H = http; | |
2162 | conn->nrequests++; | |
2163 | commSetTimeout(fd, Config.Timeout.lifetime, NULL, NULL); | |
3775d53c | 2164 | if (parser_return_code < 0) { |
93f9abd0 | 2165 | debug(33, 1) ("clientReadRequest: FD %d Invalid Request\n", fd); |
3775d53c | 2166 | err = errorCon(ERR_INVALID_REQ, HTTP_BAD_REQUEST); |
2167 | err->request_hdrs = xstrdup(conn->in.buf); | |
92695e5e | 2168 | http->entry = clientCreateStoreEntry(http, method, null_request_flags); |
3775d53c | 2169 | errorAppendEntry(http->entry, err); |
13f11a4a | 2170 | safe_free(prefix); |
3775d53c | 2171 | break; |
2172 | } | |
23d92c64 | 2173 | if ((request = urlParse(method, http->uri)) == NULL) { |
93f9abd0 | 2174 | debug(33, 5) ("Invalid URL: %s\n", http->uri); |
7a2f978b | 2175 | err = errorCon(ERR_INVALID_URL, HTTP_BAD_REQUEST); |
2176 | err->src_addr = conn->peer.sin_addr; | |
23d92c64 | 2177 | err->url = xstrdup(http->uri); |
7a2f978b | 2178 | http->al.http.code = err->http_status; |
92695e5e | 2179 | http->entry = clientCreateStoreEntry(http, method, null_request_flags); |
79e0dc20 | 2180 | errorAppendEntry(http->entry, err); |
99edd1c3 | 2181 | safe_free(prefix); |
7a2f978b | 2182 | break; |
99edd1c3 | 2183 | } else { |
2184 | /* compile headers */ | |
2185 | /* we should skip request line! */ | |
ea285003 | 2186 | if (!httpRequestParseHeader(request, prefix + req_line_sz)) |
99edd1c3 | 2187 | debug(33, 1) ("Failed to parse request headers: %s\n%s\n", |
2188 | http->uri, prefix); | |
2189 | /* continue anyway? */ | |
7a2f978b | 2190 | } |
ba26bca4 | 2191 | if (!http->flags.internal) { |
2192 | if (internalCheck(strBuf(request->urlpath))) { | |
2193 | if (0 == strcasecmp(request->host, getMyHostname())) { | |
4b4cd312 | 2194 | if (request->port == Config.Port.http->i) |
2195 | http->flags.internal = 1; | |
ba26bca4 | 2196 | } else if (internalStaticCheck(strBuf(request->urlpath))) { |
5999b776 | 2197 | xstrncpy(request->host, getMyHostname(), SQUIDHOSTNAMELEN); |
2198 | request->port = Config.Port.http->i; | |
2199 | http->flags.internal = 1; | |
ba26bca4 | 2200 | } |
2201 | } | |
2202 | } | |
13f11a4a | 2203 | safe_free(prefix); |
23d92c64 | 2204 | safe_free(http->log_uri); |
2205 | http->log_uri = xstrdup(urlCanonicalClean(request)); | |
7a2f978b | 2206 | request->client_addr = conn->peer.sin_addr; |
2207 | request->http_ver = http->http_ver; | |
7a2f978b | 2208 | if (!urlCheckRequest(request)) { |
2209 | err = errorCon(ERR_UNSUP_REQ, HTTP_NOT_IMPLEMENTED); | |
2210 | err->src_addr = conn->peer.sin_addr; | |
7a2f978b | 2211 | err->request = requestLink(request); |
2212 | http->al.http.code = err->http_status; | |
92695e5e | 2213 | http->entry = clientCreateStoreEntry(http, request->method, null_request_flags); |
79e0dc20 | 2214 | errorAppendEntry(http->entry, err); |
3775d53c | 2215 | break; |
7a2f978b | 2216 | } |
31be8b80 | 2217 | if (0 == clientCheckContentLength(request)) { |
2218 | err = errorCon(ERR_INVALID_REQ, HTTP_LENGTH_REQUIRED); | |
2219 | err->src_addr = conn->peer.sin_addr; | |
2220 | err->request = requestLink(request); | |
2221 | http->al.http.code = err->http_status; | |
92695e5e | 2222 | http->entry = clientCreateStoreEntry(http, request->method, null_request_flags); |
31be8b80 | 2223 | errorAppendEntry(http->entry, err); |
2224 | break; | |
2225 | } | |
7a2f978b | 2226 | http->request = requestLink(request); |
3775d53c | 2227 | /* |
2228 | * break here for NON-GET because most likely there is a | |
7a2f978b | 2229 | * reqeust body following and we don't want to parse it |
3775d53c | 2230 | * as though it was new request |
2231 | */ | |
7a2f978b | 2232 | if (request->method != METHOD_GET) { |
ebb6e9a0 | 2233 | int cont_len = httpHeaderGetInt(&request->header, HDR_CONTENT_LENGTH); |
2234 | int copy_len = XMIN(cont_len, conn->in.offset); | |
e34195c0 | 2235 | if (copy_len > 0) { |
ebb6e9a0 | 2236 | assert(conn->in.offset >= copy_len); |
2237 | request->body_sz = copy_len; | |
7a2f978b | 2238 | request->body = xmalloc(request->body_sz); |
2239 | xmemcpy(request->body, conn->in.buf, request->body_sz); | |
ebb6e9a0 | 2240 | conn->in.offset -= copy_len; |
2241 | if (conn->in.offset) | |
2242 | xmemmove(conn->in.buf, conn->in.buf + copy_len, conn->in.offset); | |
7a2f978b | 2243 | } |
f7237ed2 | 2244 | /* |
2aecf121 | 2245 | * if we didn't get the full body now, then more will |
2246 | * be arriving on the client socket. Lets cancel | |
2247 | * the read handler until this request gets forwarded. | |
f7237ed2 | 2248 | */ |
2aecf121 | 2249 | if (request->body_sz < cont_len) |
2250 | commSetSelect(fd, COMM_SELECT_READ, NULL, NULL, 0); | |
7a2f978b | 2251 | } |
2aecf121 | 2252 | clientAccessCheck(http); |
7a2f978b | 2253 | continue; /* while offset > 0 */ |
2254 | } else if (parser_return_code == 0) { | |
2255 | /* | |
2256 | * Partial request received; reschedule until parseHttpRequest() | |
2257 | * is happy with the input | |
2258 | */ | |
2259 | k = conn->in.size - 1 - conn->in.offset; | |
2260 | if (k == 0) { | |
2261 | if (conn->in.offset >= Config.maxRequestSize) { | |
2262 | /* The request is too large to handle */ | |
93f9abd0 | 2263 | debug(33, 0) ("Request won't fit in buffer.\n"); |
2264 | debug(33, 0) ("Config 'request_size'= %d bytes.\n", | |
7a2f978b | 2265 | Config.maxRequestSize); |
93f9abd0 | 2266 | debug(33, 0) ("This request = %d bytes.\n", |
5f6ac48b | 2267 | (int) conn->in.offset); |
7a2f978b | 2268 | err = errorCon(ERR_INVALID_REQ, HTTP_REQUEST_ENTITY_TOO_LARGE); |
92695e5e | 2269 | http->entry = clientCreateStoreEntry(http, request->method, null_request_flags); |
79e0dc20 | 2270 | errorAppendEntry(http->entry, err); |
7a2f978b | 2271 | return; |
2272 | } | |
2273 | /* Grow the request memory area to accomodate for a large request */ | |
2274 | conn->in.size += REQUEST_BUF_SIZE; | |
2275 | conn->in.buf = xrealloc(conn->in.buf, conn->in.size); | |
59c4d35b | 2276 | /* XXX account conn->in.buf */ |
93f9abd0 | 2277 | debug(33, 2) ("Handling a large request, offset=%d inbufsize=%d\n", |
5f6ac48b | 2278 | (int) conn->in.offset, conn->in.size); |
7a2f978b | 2279 | k = conn->in.size - 1 - conn->in.offset; |
2280 | } | |
7a2f978b | 2281 | break; |
7a2f978b | 2282 | } |
2283 | } | |
2284 | } | |
2285 | ||
2286 | /* general lifetime handler for HTTP requests */ | |
2287 | static void | |
2288 | requestTimeout(int fd, void *data) | |
2289 | { | |
2290 | ConnStateData *conn = data; | |
2291 | ErrorState *err; | |
93f9abd0 | 2292 | debug(33, 2) ("requestTimeout: FD %d: lifetime is expired.\n", fd); |
7a2f978b | 2293 | if (fd_table[fd].rwstate) { |
79e0dc20 | 2294 | /* |
2295 | * Some data has been sent to the client, just close the FD | |
2296 | */ | |
7a2f978b | 2297 | comm_close(fd); |
2298 | } else if (conn->nrequests) { | |
79e0dc20 | 2299 | /* |
2300 | * assume its a persistent connection; just close it | |
2301 | */ | |
7a2f978b | 2302 | comm_close(fd); |
2303 | } else { | |
79e0dc20 | 2304 | /* |
2305 | * Generate an error | |
2306 | */ | |
7a2f978b | 2307 | err = errorCon(ERR_LIFETIME_EXP, HTTP_REQUEST_TIMEOUT); |
7a2f978b | 2308 | err->url = xstrdup("N/A"); |
79e0dc20 | 2309 | /* |
2310 | * Normally we shouldn't call errorSend() in client_side.c, but | |
2311 | * it should be okay in this case. Presumably if we get here | |
2312 | * this is the first request for the connection, and no data | |
2313 | * has been written yet | |
2314 | */ | |
2315 | assert(conn->chr == NULL); | |
7a2f978b | 2316 | errorSend(fd, err); |
79e0dc20 | 2317 | /* |
2318 | * if we don't close() here, we still need a timeout handler! | |
2319 | */ | |
7a2f978b | 2320 | commSetTimeout(fd, 30, requestTimeout, conn); |
2321 | } | |
2322 | } | |
2323 | ||
ba4f8e5a | 2324 | static int |
2325 | httpAcceptDefer(void) | |
7a2f978b | 2326 | { |
3d6629c6 | 2327 | static time_t last_warn = 0; |
2328 | if (fdNFree() >= RESERVED_FD) | |
2329 | return 0; | |
2330 | if (last_warn + 15 < squid_curtime) { | |
2331 | debug(33, 0) ("WARNING! Your cache is running out of filedescriptors\n"); | |
2332 | last_warn = squid_curtime; | |
2333 | } | |
2334 | return 1; | |
7a2f978b | 2335 | } |
2336 | ||
bf8e5903 | 2337 | /* Handle a new connection on HTTP socket. */ |
7a2f978b | 2338 | void |
ba4f8e5a | 2339 | httpAccept(int sock, void *data) |
7a2f978b | 2340 | { |
ba4f8e5a | 2341 | int *N = data; |
7a2f978b | 2342 | int fd = -1; |
2343 | ConnStateData *connState = NULL; | |
2344 | struct sockaddr_in peer; | |
2345 | struct sockaddr_in me; | |
309ad3b6 | 2346 | int max = INCOMING_HTTP_MAX; |
c411b98a | 2347 | commSetSelect(sock, COMM_SELECT_READ, httpAccept, NULL, 0); |
ba4f8e5a | 2348 | while (max-- && !httpAcceptDefer()) { |
e2525655 | 2349 | memset(&peer, '\0', sizeof(struct sockaddr_in)); |
2350 | memset(&me, '\0', sizeof(struct sockaddr_in)); | |
e2525655 | 2351 | if ((fd = comm_accept(sock, &peer, &me)) < 0) { |
2352 | if (!ignoreErrno(errno)) | |
eeb423fb | 2353 | debug(50, 1) ("httpAccept: FD %d: accept failure: %s\n", |
e2525655 | 2354 | sock, xstrerror()); |
2355 | break; | |
2356 | } | |
2357 | debug(33, 4) ("httpAccept: FD %d: accepted\n", fd); | |
2358 | connState = xcalloc(1, sizeof(ConnStateData)); | |
2359 | connState->peer = peer; | |
2360 | connState->log_addr = peer.sin_addr; | |
2361 | connState->log_addr.s_addr &= Config.Addrs.client_netmask.s_addr; | |
2362 | connState->me = me; | |
2363 | connState->fd = fd; | |
2364 | connState->ident.fd = -1; | |
2365 | connState->in.size = REQUEST_BUF_SIZE; | |
2366 | connState->in.buf = xcalloc(connState->in.size, 1); | |
2367 | cbdataAdd(connState, MEM_NONE); | |
2368 | /* XXX account connState->in.buf */ | |
2369 | comm_add_close_handler(fd, connStateFree, connState); | |
2370 | if (Config.onoff.log_fqdn) | |
2371 | fqdncache_gethostbyaddr(peer.sin_addr, FQDN_LOOKUP_IF_MISS); | |
2372 | commSetTimeout(fd, Config.Timeout.request, requestTimeout, connState); | |
2373 | commSetSelect(fd, COMM_SELECT_READ, clientReadRequest, connState, 0); | |
2374 | commSetDefer(fd, clientReadDefer, connState); | |
ba4f8e5a | 2375 | (*N)++; |
7a2f978b | 2376 | } |
7a2f978b | 2377 | } |
2378 | ||
7a2f978b | 2379 | /* return 1 if the request should be aborted */ |
2380 | static int | |
2381 | CheckQuickAbort2(const clientHttpRequest * http) | |
2382 | { | |
4efca7da | 2383 | int curlen; |
2384 | int minlen; | |
2385 | int expectlen; | |
7a2f978b | 2386 | |
92695e5e | 2387 | if (!http->request->flags.cachable) |
7a2f978b | 2388 | return 1; |
d46a87a8 | 2389 | if (EBIT_TEST(http->entry->flags, KEY_PRIVATE)) |
7a2f978b | 2390 | return 1; |
2391 | if (http->entry->mem_obj == NULL) | |
2392 | return 1; | |
038eb4ed | 2393 | expectlen = http->entry->mem_obj->reply->content_length; |
4efca7da | 2394 | curlen = (int) http->entry->mem_obj->inmem_hi; |
59cb9808 | 2395 | minlen = (int) Config.quickAbort.min << 10; |
7a2f978b | 2396 | if (minlen < 0) |
2397 | /* disabled */ | |
2398 | return 0; | |
2399 | if (curlen > expectlen) | |
2400 | /* bad content length */ | |
2401 | return 1; | |
2402 | if ((expectlen - curlen) < minlen) | |
2403 | /* only little more left */ | |
2404 | return 0; | |
59cb9808 | 2405 | if ((expectlen - curlen) > (Config.quickAbort.max << 10)) |
7a2f978b | 2406 | /* too much left to go */ |
2407 | return 1; | |
37d0359b | 2408 | if (expectlen < 100) |
4efca7da | 2409 | /* avoid FPE */ |
2410 | return 0; | |
37d0359b | 2411 | if ((curlen / (expectlen / 100)) > Config.quickAbort.pct) |
7a2f978b | 2412 | /* past point of no return */ |
2413 | return 0; | |
2414 | return 1; | |
2415 | } | |
2416 | ||
2417 | ||
2418 | static void | |
2419 | CheckQuickAbort(clientHttpRequest * http) | |
2420 | { | |
2421 | StoreEntry *entry = http->entry; | |
2422 | /* Note, set entry here because http->entry might get changed (for IMS | |
2423 | * requests) during the storeAbort() call */ | |
2424 | if (entry == NULL) | |
2425 | return; | |
36547bcf | 2426 | if (storePendingNClients(entry) > 0) |
7a2f978b | 2427 | return; |
2428 | if (entry->store_status != STORE_PENDING) | |
2429 | return; | |
2430 | if (CheckQuickAbort2(http) == 0) | |
2431 | return; | |
93f9abd0 | 2432 | debug(33, 3) ("CheckQuickAbort: ABORTING %s\n", storeUrl(entry)); |
59cb9808 | 2433 | Counter.aborted_requests++; |
7a2f978b | 2434 | storeAbort(entry, 1); |
2435 | } | |
2436 | ||
978e455f | 2437 | #define SENDING_BODY 0 |
2438 | #define SENDING_HDRSONLY 1 | |
7a2f978b | 2439 | static int |
1b02b5be | 2440 | clientCheckTransferDone(clientHttpRequest * http) |
7a2f978b | 2441 | { |
978e455f | 2442 | int sending = SENDING_BODY; |
7a2f978b | 2443 | StoreEntry *entry = http->entry; |
978e455f | 2444 | MemObject *mem; |
2445 | http_reply *reply; | |
2446 | int sendlen; | |
7a2f978b | 2447 | if (entry == NULL) |
2448 | return 0; | |
9f086470 | 2449 | /* |
2450 | * For now, 'done_copying' is used for special cases like | |
2451 | * Range and HEAD requests. | |
2452 | */ | |
2453 | if (http->flags.done_copying) | |
2454 | return 1; | |
978e455f | 2455 | /* |
2456 | * Handle STORE_OK and STORE_ABORTED objects. | |
07304bf9 | 2457 | * objectLen(entry) will be set proprely. |
978e455f | 2458 | */ |
2459 | if (entry->store_status != STORE_PENDING) { | |
07304bf9 | 2460 | if (http->out.offset >= objectLen(entry)) |
7a2f978b | 2461 | return 1; |
513f05a6 | 2462 | else |
2463 | return 0; | |
2464 | } | |
978e455f | 2465 | /* |
2466 | * Now, handle STORE_PENDING objects | |
2467 | */ | |
2468 | mem = entry->mem_obj; | |
2469 | assert(mem != NULL); | |
2470 | assert(http->request != NULL); | |
2471 | reply = mem->reply; | |
2472 | if (reply->hdr_sz == 0) | |
b34ed725 | 2473 | return 0; /* haven't found end of headers yet */ |
cb69b4c7 | 2474 | else if (reply->sline.status == HTTP_OK) |
b34ed725 | 2475 | sending = SENDING_BODY; |
cb69b4c7 | 2476 | else if (reply->sline.status == HTTP_NO_CONTENT) |
b34ed725 | 2477 | sending = SENDING_HDRSONLY; |
cb69b4c7 | 2478 | else if (reply->sline.status == HTTP_NOT_MODIFIED) |
b34ed725 | 2479 | sending = SENDING_HDRSONLY; |
cb69b4c7 | 2480 | else if (reply->sline.status < HTTP_OK) |
a3c60429 | 2481 | sending = SENDING_HDRSONLY; |
978e455f | 2482 | else if (http->request->method == METHOD_HEAD) |
b34ed725 | 2483 | sending = SENDING_HDRSONLY; |
978e455f | 2484 | else |
2485 | sending = SENDING_BODY; | |
2486 | /* | |
2487 | * Figure out how much data we are supposed to send. | |
2488 | * If we are sending a body and we don't have a content-length, | |
2489 | * then we must wait for the object to become STORE_OK or | |
2490 | * STORE_ABORTED. | |
2491 | */ | |
2492 | if (sending == SENDING_HDRSONLY) | |
2493 | sendlen = reply->hdr_sz; | |
038eb4ed | 2494 | else if (reply->content_length < 0) |
978e455f | 2495 | return 0; |
2496 | else | |
038eb4ed | 2497 | sendlen = reply->content_length + reply->hdr_sz; |
978e455f | 2498 | /* |
2499 | * Now that we have the expected length, did we send it all? | |
2500 | */ | |
2501 | if (http->out.offset < sendlen) | |
2502 | return 0; | |
2503 | else | |
b34ed725 | 2504 | return 1; |
7a2f978b | 2505 | } |
2506 | ||
7a2f978b | 2507 | /* |
2508 | * This function is designed to serve a fairly specific purpose. | |
2509 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
2510 | * the rest of the world. Here we try to detect frequent failures which | |
2511 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
2512 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
2513 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
2514 | * will only fetch HITs from us if they are using the ICP protocol. We | |
2515 | * stay in this mode for 5 minutes. | |
2516 | * | |
2517 | * Duane W., Sept 16, 1996 | |
2518 | */ | |
2519 | ||
2520 | static void | |
88aad2e5 | 2521 | checkFailureRatio(err_type etype, hier_code hcode) |
7a2f978b | 2522 | { |
88aad2e5 | 2523 | static double magic_factor = 100.0; |
7a2f978b | 2524 | double n_good; |
2525 | double n_bad; | |
2526 | if (hcode == HIER_NONE) | |
2527 | return; | |
88aad2e5 | 2528 | n_good = magic_factor / (1.0 + request_failure_ratio); |
7a2f978b | 2529 | n_bad = magic_factor - n_good; |
88aad2e5 | 2530 | switch (etype) { |
7a2f978b | 2531 | case ERR_DNS_FAIL: |
2532 | case ERR_CONNECT_FAIL: | |
2533 | case ERR_READ_ERROR: | |
2534 | n_bad++; | |
2535 | break; | |
2536 | default: | |
2537 | n_good++; | |
2538 | } | |
88aad2e5 | 2539 | request_failure_ratio = n_bad / n_good; |
7a2f978b | 2540 | if (hit_only_mode_until > squid_curtime) |
2541 | return; | |
88aad2e5 | 2542 | if (request_failure_ratio < 1.0) |
7a2f978b | 2543 | return; |
93f9abd0 | 2544 | debug(33, 0) ("Failure Ratio at %4.2f\n", request_failure_ratio); |
2545 | debug(33, 0) ("Going into hit-only-mode for %d minutes...\n", | |
7a2f978b | 2546 | FAILURE_MODE_TIME / 60); |
2547 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; | |
88aad2e5 | 2548 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
7a2f978b | 2549 | } |
15df8349 | 2550 | |
2551 | void | |
2552 | clientHttpConnectionsOpen(void) | |
2553 | { | |
2554 | ushortlist *u; | |
2555 | int fd; | |
15df8349 | 2556 | for (u = Config.Port.http; u; u = u->next) { |
8daca701 | 2557 | enter_suid(); |
2558 | fd = comm_open(SOCK_STREAM, | |
2559 | 0, | |
2560 | Config.Addrs.tcp_incoming, | |
2561 | u->i, | |
2562 | COMM_NONBLOCKING, | |
2563 | "HTTP Socket"); | |
2564 | leave_suid(); | |
2565 | if (fd < 0) | |
2566 | continue; | |
2567 | comm_listen(fd); | |
2568 | commSetSelect(fd, COMM_SELECT_READ, httpAccept, NULL, 0); | |
eeb423fb | 2569 | /*commSetDefer(fd, httpAcceptDefer, NULL); */ |
8daca701 | 2570 | debug(1, 1) ("Accepting HTTP connections on port %d, FD %d.\n", |
2571 | (int) u->i, fd); | |
2572 | HttpSockets[NHttpSockets++] = fd; | |
15df8349 | 2573 | } |
2574 | if (NHttpSockets < 1) | |
8daca701 | 2575 | fatal("Cannot open HTTP Port"); |
15df8349 | 2576 | } |
c0fbae16 | 2577 | |
2578 | void | |
2579 | clientHttpConnectionsClose(void) | |
2580 | { | |
2581 | int i; | |
2582 | for (i = 0; i < NHttpSockets; i++) { | |
2583 | if (HttpSockets[i] >= 0) { | |
2584 | debug(1, 1) ("FD %d Closing HTTP connection\n", HttpSockets[i]); | |
2585 | comm_close(HttpSockets[i]); | |
2586 | HttpSockets[i] = -1; | |
2587 | } | |
2588 | } | |
2589 | NHttpSockets = 0; | |
2590 | } |