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3c66d057 | 1 | |
dd11e0b7 | 2 | /* |
8d6da567 | 3 | * $Id: client_side.cc,v 1.254 1998/04/04 00:23:13 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/ |
dd11e0b7 | 9 | * -------------------------------------------------------- |
10 | * | |
11 | * Squid is the result of efforts by numerous individuals from the | |
12 | * Internet community. Development is led by Duane Wessels of the | |
13 | * National Laboratory for Applied Network Research and funded by | |
14 | * the National Science Foundation. | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
29 | * | |
30 | */ | |
f88bb09c | 31 | |
32 | #include "squid.h" | |
33 | ||
7a2f978b | 34 | static const char *const crlf = "\r\n"; |
cb69b4c7 | 35 | static const char *const proxy_auth_challenge = |
ee1679df | 36 | "Basic realm=\"Squid proxy-caching web server\""; |
7a2f978b | 37 | |
38 | #define REQUEST_BUF_SIZE 4096 | |
39 | #define FAILURE_MODE_TIME 300 | |
40 | ||
41 | /* Local functions */ | |
42 | ||
fc5d6f7f | 43 | static CWCB clientWriteComplete; |
7a2f978b | 44 | static PF clientReadRequest; |
45 | static PF connStateFree; | |
46 | static PF requestTimeout; | |
1b02b5be | 47 | static STCB clientGetHeadersForIMS; |
7a2f978b | 48 | static int CheckQuickAbort2(const clientHttpRequest *); |
1b02b5be | 49 | static int clientCheckTransferDone(clientHttpRequest *); |
7a2f978b | 50 | static void CheckQuickAbort(clientHttpRequest *); |
88aad2e5 | 51 | static void checkFailureRatio(err_type, hier_code); |
fb63215a | 52 | static void clientProcessMiss(clientHttpRequest *); |
7a2f978b | 53 | static void clientAppendReplyHeader(char *, const char *, size_t *, size_t); |
2334c194 | 54 | size_t clientBuildReplyHeader(clientHttpRequest *, char *, size_t, size_t *, char *, size_t); |
7a2f978b | 55 | static clientHttpRequest *parseHttpRequest(ConnStateData *, method_t *, int *, char **, size_t *); |
582b6456 | 56 | static RH clientRedirectDone; |
1b02b5be | 57 | static STCB clientHandleIMSReply; |
f5b8bbc4 | 58 | static int clientGetsOldEntry(StoreEntry * new, StoreEntry * old, request_t * request); |
59 | static int checkAccelOnly(clientHttpRequest *); | |
7a2f978b | 60 | static STCB clientSendMoreData; |
61 | static STCB clientCacheHit; | |
50ddd7a4 | 62 | static void clientParseRequestHeaders(clientHttpRequest *); |
fb63215a | 63 | static void clientProcessRequest(clientHttpRequest *); |
64 | static void clientProcessExpired(void *data); | |
038eb4ed | 65 | static void clientProcessOnlyIfCachedMiss(clientHttpRequest * http); |
cb69b4c7 | 66 | static HttpReply *clientConstructProxyAuthReply(clientHttpRequest * http); |
50ddd7a4 | 67 | static int clientCachable(clientHttpRequest * http); |
68 | static int clientHierarchical(clientHttpRequest * http); | |
efb9218c | 69 | static int clientCheckContentLength(request_t * r); |
ea6f43cd | 70 | |
38d7734b | 71 | static int |
382d851a | 72 | checkAccelOnly(clientHttpRequest * http) |
38d7734b | 73 | { |
74 | /* return TRUE if someone makes a proxy request to us and | |
75 | * we are in httpd-accel only mode */ | |
f1dc9b30 | 76 | if (!Config2.Accel.on) |
38d7734b | 77 | return 0; |
17a0a4ee | 78 | if (Config.onoff.accel_with_proxy) |
38d7734b | 79 | return 0; |
382d851a | 80 | if (http->request->protocol == PROTO_CACHEOBJ) |
38d7734b | 81 | return 0; |
382d851a | 82 | if (http->accel) |
38d7734b | 83 | return 0; |
84 | return 1; | |
85 | } | |
86 | ||
b8d8561b | 87 | void |
382d851a | 88 | clientAccessCheck(void *data) |
f88bb09c | 89 | { |
382d851a | 90 | clientHttpRequest *http = data; |
91 | ConnStateData *conn = http->conn; | |
75e88d56 | 92 | char *browser; |
17a0a4ee | 93 | if (Config.onoff.ident_lookup && conn->ident.state == IDENT_NONE) { |
425ad52e | 94 | identStart(-1, conn, clientAccessCheck, http); |
ba1d2afa | 95 | return; |
96 | } | |
382d851a | 97 | if (checkAccelOnly(http)) { |
98 | clientAccessCheckDone(0, http); | |
75e88d56 | 99 | return; |
f88bb09c | 100 | } |
f182d1c5 | 101 | browser = mime_get_header(http->request->headers, "User-Agent"); |
f1dc9b30 | 102 | http->acl_checklist = aclChecklistCreate(Config.accessList.http, |
382d851a | 103 | http->request, |
104 | conn->peer.sin_addr, | |
75e88d56 | 105 | browser, |
382d851a | 106 | conn->ident.ident); |
107 | aclNBCheck(http->acl_checklist, clientAccessCheckDone, http); | |
f88bb09c | 108 | } |
109 | ||
cb69b4c7 | 110 | static HttpReply * |
ee1679df | 111 | clientConstructProxyAuthReply(clientHttpRequest * http) |
cb69b4c7 | 112 | { |
113 | ErrorState *err = errorCon(ERR_CACHE_ACCESS_DENIED, HTTP_PROXY_AUTHENTICATION_REQUIRED); | |
114 | HttpReply *rep; | |
115 | err->request = requestLink(http->request); | |
116 | rep = errorBuildReply(err); | |
117 | errorStateFree(err); | |
118 | /* add Authenticate header */ | |
038eb4ed | 119 | httpHeaderPutStr(&rep->header, HDR_PROXY_AUTHENTICATE, proxy_auth_challenge); |
cb69b4c7 | 120 | return rep; |
121 | } | |
fc5d6f7f | 122 | |
23d92c64 | 123 | StoreEntry * |
f44af445 | 124 | clientCreateStoreEntry(clientHttpRequest * h, method_t m, int flags) |
79e0dc20 | 125 | { |
126 | StoreEntry *e; | |
40defb17 | 127 | request_t *r; |
128 | /* | |
129 | * For erroneous requests, we might not have a h->request, | |
130 | * so make a fake one. | |
131 | */ | |
132 | if (h->request == NULL) { | |
7021844c | 133 | r = memAllocate(MEM_REQUEST_T); |
40defb17 | 134 | r->method = m; |
135 | r->protocol = PROTO_NONE; | |
136 | h->request = requestLink(r); | |
137 | } | |
23d92c64 | 138 | e = storeCreateEntry(h->uri, h->log_uri, flags, m); |
79e0dc20 | 139 | storeClientListAdd(e, h); |
7021844c | 140 | storeClientCopy(e, 0, 0, 4096, memAllocate(MEM_4K_BUF), clientSendMoreData, h); |
79e0dc20 | 141 | return e; |
142 | } | |
143 | ||
144 | ||
b8d8561b | 145 | void |
75e88d56 | 146 | clientAccessCheckDone(int answer, void *data) |
f88bb09c | 147 | { |
382d851a | 148 | clientHttpRequest *http = data; |
02922e76 | 149 | int page_id = -1; |
9b312a19 | 150 | ErrorState *err = NULL; |
1bea1d83 | 151 | HttpReply *rep; |
23d92c64 | 152 | debug(33, 5) ("clientAccessCheckDone: '%s' answer=%d\n", http->uri, answer); |
382d851a | 153 | http->acl_checklist = NULL; |
fc5d6f7f | 154 | if (answer == ACCESS_ALLOWED) { |
23d92c64 | 155 | urlCanonical(http->request, http->uri); |
ce66013b | 156 | assert(http->redirect_state == REDIRECT_NONE); |
382d851a | 157 | http->redirect_state = REDIRECT_PENDING; |
158 | redirectStart(http, clientRedirectDone, http); | |
fc5d6f7f | 159 | } else if (answer == ACCESS_REQ_PROXY_AUTH) { |
160 | http->al.http.code = HTTP_PROXY_AUTHENTICATION_REQUIRED; | |
161 | http->log_type = LOG_TCP_DENIED; | |
f44af445 | 162 | http->entry = clientCreateStoreEntry(http, http->request->method, 0); |
1bea1d83 | 163 | /* create appropreate response */ |
164 | rep = clientConstructProxyAuthReply(http); | |
165 | httpReplySwapOut(rep, http->entry); | |
166 | /* do not need it anymore */ | |
167 | httpReplyDestroy(rep); | |
f88bb09c | 168 | } else { |
23d92c64 | 169 | debug(33, 5) ("Access Denied: %s\n", http->uri); |
901e234d | 170 | debug(33, 5) ("AclMatchedName = %s\n", |
6f47fbc7 | 171 | AclMatchedName ? AclMatchedName : "<null>"); |
79a15e0a | 172 | http->log_type = LOG_TCP_DENIED; |
f44af445 | 173 | http->entry = clientCreateStoreEntry(http, http->request->method, 0); |
02922e76 | 174 | page_id = aclGetDenyInfoPage(&Config.denyInfoList, AclMatchedName); |
175 | /* NOTE: don't use HTTP_UNAUTHORIZED because then the | |
176 | * stupid browser wants us to authenticate */ | |
177 | err = errorCon(ERR_ACCESS_DENIED, HTTP_FORBIDDEN); | |
178 | err->request = requestLink(http->request); | |
179 | err->src_addr = http->conn->peer.sin_addr; | |
180 | if (page_id > 0) | |
181 | err->page_id = page_id; | |
182 | errorAppendEntry(http->entry, err); | |
f88bb09c | 183 | } |
184 | } | |
185 | ||
b8d8561b | 186 | static void |
187 | clientRedirectDone(void *data, char *result) | |
f88bb09c | 188 | { |
382d851a | 189 | clientHttpRequest *http = data; |
88738790 | 190 | size_t l; |
c0cdaf99 | 191 | request_t *new_request = NULL; |
382d851a | 192 | request_t *old_request = http->request; |
23d92c64 | 193 | debug(33, 5) ("clientRedirectDone: '%s' result=%s\n", http->uri, |
f88bb09c | 194 | result ? result : "NULL"); |
ce66013b | 195 | assert(http->redirect_state == REDIRECT_PENDING); |
382d851a | 196 | http->redirect_state = REDIRECT_DONE; |
c0cdaf99 | 197 | if (result) |
20cc1450 | 198 | new_request = urlParse(old_request->method, result); |
c0cdaf99 | 199 | if (new_request) { |
23d92c64 | 200 | safe_free(http->uri); |
88738790 | 201 | /* need to malloc because the URL returned by the redirector might |
202 | * not be big enough to append the local domain | |
203 | * -- David Lamkin drl@net-tel.co.uk */ | |
204 | l = strlen(result) + Config.appendDomainLen + 5; | |
23d92c64 | 205 | http->uri = xcalloc(l, 1); |
206 | xstrncpy(http->uri, result, l); | |
20cc1450 | 207 | new_request->http_ver = old_request->http_ver; |
16b9d3df | 208 | new_request->headers = xstrdup(old_request->headers); |
2357f74a | 209 | new_request->headers_sz = old_request->headers_sz; |
6cf028ab | 210 | if (old_request->body) { |
211 | new_request->body = xmalloc(old_request->body_sz); | |
212 | xmemcpy(new_request->body, old_request->body, old_request->body_sz); | |
213 | new_request->body_sz = old_request->body_sz; | |
214 | } | |
20cc1450 | 215 | requestUnlink(old_request); |
382d851a | 216 | http->request = requestLink(new_request); |
23d92c64 | 217 | urlCanonical(http->request, http->uri); |
f88bb09c | 218 | } |
50ddd7a4 | 219 | clientParseRequestHeaders(http); |
23d92c64 | 220 | fd_note(http->conn->fd, http->uri); |
fb63215a | 221 | clientProcessRequest(http); |
e81957b7 | 222 | } |
223 | ||
fb63215a | 224 | static void |
225 | clientProcessExpired(void *data) | |
620da955 | 226 | { |
382d851a | 227 | clientHttpRequest *http = data; |
23d92c64 | 228 | char *url = http->uri; |
620da955 | 229 | StoreEntry *entry = NULL; |
23d92c64 | 230 | debug(33, 3) ("clientProcessExpired: '%s'\n", http->uri); |
79a15e0a | 231 | EBIT_SET(http->request->flags, REQ_REFRESH); |
382d851a | 232 | http->old_entry = http->entry; |
620da955 | 233 | entry = storeCreateEntry(url, |
23d92c64 | 234 | http->log_uri, |
382d851a | 235 | http->request->flags, |
236 | http->request->method); | |
620da955 | 237 | /* NOTE, don't call storeLockObject(), storeCreateEntry() does it */ |
fe96bbe6 | 238 | storeClientListAdd(entry, http); |
239 | storeClientListAdd(http->old_entry, http); | |
382d851a | 240 | entry->lastmod = http->old_entry->lastmod; |
50ddd7a4 | 241 | debug(33, 5) ("clientProcessExpired: setting lmt = %d\n", |
5f6ac48b | 242 | (int) entry->lastmod); |
d1a43e28 | 243 | entry->refcount++; /* EXPIRED CASE */ |
382d851a | 244 | http->entry = entry; |
245 | http->out.offset = 0; | |
fb63215a | 246 | protoDispatch(http->conn->fd, http->entry, http->request); |
f990cccc | 247 | /* Register with storage manager to receive updates when data comes in. */ |
0e473d70 | 248 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 249 | debug(33, 0) ("clientProcessExpired: entry->swap_status == STORE_ABORTED\n"); |
d89d1fb6 | 250 | storeClientCopy(entry, |
fe96bbe6 | 251 | http->out.offset, |
d89d1fb6 | 252 | http->out.offset, |
253 | 4096, | |
7021844c | 254 | memAllocate(MEM_4K_BUF), |
1b02b5be | 255 | clientHandleIMSReply, |
d89d1fb6 | 256 | http); |
620da955 | 257 | } |
258 | ||
91f4d519 | 259 | static int |
260 | clientGetsOldEntry(StoreEntry * new_entry, StoreEntry * old_entry, request_t * request) | |
261 | { | |
262 | /* If the reply is anything but "Not Modified" then | |
263 | * we must forward it to the client */ | |
cb69b4c7 | 264 | const http_status status = new_entry->mem_obj->reply->sline.status; |
265 | if (status != 304) { | |
266 | debug(33, 5) ("clientGetsOldEntry: NO, reply=%d\n", status); | |
91f4d519 | 267 | return 0; |
268 | } | |
269 | /* If the client did not send IMS in the request, then it | |
270 | * must get the old object, not this "Not Modified" reply */ | |
79a15e0a | 271 | if (!EBIT_TEST(request->flags, REQ_IMS)) { |
a3d5953d | 272 | debug(33, 5) ("clientGetsOldEntry: YES, no client IMS\n"); |
91f4d519 | 273 | return 1; |
274 | } | |
275 | /* If the client IMS time is prior to the entry LASTMOD time we | |
276 | * need to send the old object */ | |
277 | if (modifiedSince(old_entry, request)) { | |
5f6ac48b | 278 | debug(33, 5) ("clientGetsOldEntry: YES, modified since %d\n", |
1afe05c5 | 279 | (int) request->ims); |
91f4d519 | 280 | return 1; |
281 | } | |
a3d5953d | 282 | debug(33, 5) ("clientGetsOldEntry: NO, new one is fine\n"); |
91f4d519 | 283 | return 0; |
284 | } | |
285 | ||
286 | ||
52d4522b | 287 | static void |
1b02b5be | 288 | clientHandleIMSReply(void *data, char *buf, ssize_t size) |
620da955 | 289 | { |
382d851a | 290 | clientHttpRequest *http = data; |
382d851a | 291 | StoreEntry *entry = http->entry; |
620da955 | 292 | MemObject *mem = entry->mem_obj; |
9fb13bb6 | 293 | const char *url = storeUrl(entry); |
e92d33a5 | 294 | int unlink_request = 0; |
76cff1d4 | 295 | StoreEntry *oldentry; |
93f9abd0 | 296 | debug(33, 3) ("clientHandleIMSReply: %s, %d bytes\n", url, (int) size); |
3f6c0fb2 | 297 | memFree(MEM_4K_BUF, buf); |
76a5501f | 298 | buf = NULL; |
620da955 | 299 | /* unregister this handler */ |
070d29eb | 300 | if (size < 0 || entry->store_status == STORE_ABORTED) { |
1b02b5be | 301 | debug(33, 3) ("clientHandleIMSReply: ABORTED '%s'\n", url); |
c54e9052 | 302 | /* We have an existing entry, but failed to validate it */ |
accc6d47 | 303 | /* Its okay to send the old one anyway */ |
304 | http->log_type = LOG_TCP_REFRESH_FAIL_HIT; | |
305 | storeUnregister(entry, http); | |
306 | storeUnlockObject(entry); | |
307 | entry = http->entry = http->old_entry; | |
308 | entry->refcount++; | |
cb69b4c7 | 309 | } else if (mem->reply->sline.status == 0) { |
1b02b5be | 310 | debug(33, 3) ("clientHandleIMSReply: Incomplete headers for '%s'\n", url); |
0e473d70 | 311 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 312 | debug(33, 0) ("clientHandleIMSReply: entry->swap_status == STORE_ABORTED\n"); |
d89d1fb6 | 313 | storeClientCopy(entry, |
fe96bbe6 | 314 | http->out.offset + size, |
d89d1fb6 | 315 | http->out.offset, |
316 | 4096, | |
7021844c | 317 | memAllocate(MEM_4K_BUF), |
1b02b5be | 318 | clientHandleIMSReply, |
d89d1fb6 | 319 | http); |
52d4522b | 320 | return; |
382d851a | 321 | } else if (clientGetsOldEntry(entry, http->old_entry, http->request)) { |
620da955 | 322 | /* We initiated the IMS request, the client is not expecting |
76cff1d4 | 323 | * 304, so put the good one back. First, make sure the old entry |
324 | * headers have been loaded from disk. */ | |
382d851a | 325 | oldentry = http->old_entry; |
382d851a | 326 | http->log_type = LOG_TCP_REFRESH_HIT; |
d89d1fb6 | 327 | if (oldentry->mem_obj->request == NULL) { |
328 | oldentry->mem_obj->request = requestLink(mem->request); | |
329 | unlink_request = 1; | |
e92d33a5 | 330 | } |
64763c37 | 331 | /* Don't memcpy() the whole reply structure here. For example, |
332 | * www.thegist.com (Netscape/1.13) returns a content-length for | |
333 | * 304's which seems to be the length of the 304 HEADERS!!! and | |
334 | * not the body they refer to. */ | |
cb69b4c7 | 335 | httpReplyUpdateOnNotModified(entry->mem_obj->reply, oldentry->mem_obj->reply); |
d89d1fb6 | 336 | storeTimestampsSet(oldentry); |
382d851a | 337 | storeUnregister(entry, http); |
6d54aea8 | 338 | storeUnlockObject(entry); |
382d851a | 339 | entry = http->entry = oldentry; |
41fad779 | 340 | entry->timestamp = squid_curtime; |
657266fe | 341 | if (unlink_request) { |
e92d33a5 | 342 | requestUnlink(entry->mem_obj->request); |
657266fe | 343 | entry->mem_obj->request = NULL; |
344 | } | |
620da955 | 345 | } else { |
346 | /* the client can handle this reply, whatever it is */ | |
382d851a | 347 | http->log_type = LOG_TCP_REFRESH_MISS; |
cb69b4c7 | 348 | if (mem->reply->sline.status == 304) { |
382d851a | 349 | http->old_entry->timestamp = squid_curtime; |
350 | http->old_entry->refcount++; | |
351 | http->log_type = LOG_TCP_REFRESH_HIT; | |
d1a43e28 | 352 | } |
382d851a | 353 | storeUnregister(http->old_entry, http); |
354 | storeUnlockObject(http->old_entry); | |
620da955 | 355 | } |
382d851a | 356 | http->old_entry = NULL; /* done with old_entry */ |
e8479da9 | 357 | /* use clientCacheHit() here as the callback because we might |
6a54c60e | 358 | * be swapping in from disk, and the file might not really be |
359 | * there */ | |
0e473d70 | 360 | if (entry->store_status == STORE_ABORTED) { |
6cf028ab | 361 | debug(33, 0) ("clientHandleIMSReply: IMS swapin failed on aborted object\n"); |
362 | http->log_type = LOG_TCP_SWAPFAIL_MISS; | |
363 | clientProcessMiss(http); | |
364 | return; | |
365 | } | |
d89d1fb6 | 366 | storeClientCopy(entry, |
fe96bbe6 | 367 | http->out.offset, |
d89d1fb6 | 368 | http->out.offset, |
369 | 4096, | |
7021844c | 370 | memAllocate(MEM_4K_BUF), |
e8479da9 | 371 | clientCacheHit, |
d89d1fb6 | 372 | http); |
620da955 | 373 | } |
91f4d519 | 374 | |
375 | int | |
304d07cb | 376 | modifiedSince(StoreEntry * entry, request_t * request) |
91f4d519 | 377 | { |
378 | int object_length; | |
379 | MemObject *mem = entry->mem_obj; | |
9fb13bb6 | 380 | debug(33, 3) ("modifiedSince: '%s'\n", storeUrl(entry)); |
91f4d519 | 381 | if (entry->lastmod < 0) |
382 | return 1; | |
383 | /* Find size of the object */ | |
038eb4ed | 384 | object_length = mem->reply->content_length; |
cb69b4c7 | 385 | if (object_length < 0) |
07304bf9 | 386 | object_length = contentLen(entry); |
91f4d519 | 387 | if (entry->lastmod > request->ims) { |
a3d5953d | 388 | debug(33, 3) ("--> YES: entry newer than client\n"); |
91f4d519 | 389 | return 1; |
390 | } else if (entry->lastmod < request->ims) { | |
a3d5953d | 391 | debug(33, 3) ("--> NO: entry older than client\n"); |
91f4d519 | 392 | return 0; |
393 | } else if (request->imslen < 0) { | |
a3d5953d | 394 | debug(33, 3) ("--> NO: same LMT, no client length\n"); |
91f4d519 | 395 | return 0; |
396 | } else if (request->imslen == object_length) { | |
a3d5953d | 397 | debug(33, 3) ("--> NO: same LMT, same length\n"); |
91f4d519 | 398 | return 0; |
399 | } else { | |
a3d5953d | 400 | debug(33, 3) ("--> YES: same LMT, different length\n"); |
91f4d519 | 401 | return 1; |
402 | } | |
403 | } | |
b3b64e58 | 404 | |
405 | char * | |
382d851a | 406 | clientConstructTraceEcho(clientHttpRequest * http) |
b3b64e58 | 407 | { |
408 | LOCAL_ARRAY(char, line, 256); | |
409 | LOCAL_ARRAY(char, buf, 8192); | |
410 | size_t len; | |
411 | memset(buf, '\0', 8192); | |
042461c3 | 412 | snprintf(buf, 8192, "HTTP/1.0 200 OK\r\n"); |
56878878 | 413 | snprintf(line, 256, "Date: %s\r\n", mkrfc1123(squid_curtime)); |
b3b64e58 | 414 | strcat(buf, line); |
042461c3 | 415 | snprintf(line, 256, "Server: Squid/%s\r\n", SQUID_VERSION); |
b3b64e58 | 416 | strcat(buf, line); |
042461c3 | 417 | snprintf(line, 256, "Content-Type: message/http\r\n"); |
b3b64e58 | 418 | strcat(buf, line); |
419 | strcat(buf, "\r\n"); | |
420 | len = strlen(buf); | |
382d851a | 421 | httpBuildRequestHeader(http->request, |
422 | http->request, | |
b3b64e58 | 423 | NULL, /* entry */ |
b3b64e58 | 424 | NULL, /* in_len */ |
425 | buf + len, | |
426 | 8192 - len, | |
603a02fd | 427 | http->conn->fd, |
428 | 0); /* flags */ | |
382d851a | 429 | http->log_type = LOG_TCP_MISS; |
4869e8a1 | 430 | http->http_code = HTTP_OK; |
b3b64e58 | 431 | return buf; |
432 | } | |
a90eae18 | 433 | |
434 | void | |
382d851a | 435 | clientPurgeRequest(clientHttpRequest * http) |
a90eae18 | 436 | { |
a90eae18 | 437 | StoreEntry *entry; |
9b312a19 | 438 | ErrorState *err = NULL; |
9fb13bb6 | 439 | const cache_key *k; |
8d6da567 | 440 | HttpReply *r; |
9b312a19 | 441 | debug(33, 3) ("Config.onoff.enable_purge = %d\n", Config.onoff.enable_purge); |
17a0a4ee | 442 | if (!Config.onoff.enable_purge) { |
79a15e0a | 443 | http->log_type = LOG_TCP_DENIED; |
fe40a877 | 444 | err = errorCon(ERR_ACCESS_DENIED, HTTP_FORBIDDEN); |
9b312a19 | 445 | err->request = requestLink(http->request); |
446 | err->src_addr = http->conn->peer.sin_addr; | |
f44af445 | 447 | http->entry = clientCreateStoreEntry(http, http->request->method, 0); |
79e0dc20 | 448 | errorAppendEntry(http->entry, err); |
a90eae18 | 449 | return; |
450 | } | |
382d851a | 451 | http->log_type = LOG_TCP_MISS; |
23d92c64 | 452 | k = storeKeyPublic(http->uri, METHOD_GET); |
9fb13bb6 | 453 | if ((entry = storeGet(k)) == NULL) { |
9b312a19 | 454 | http->http_code = HTTP_NOT_FOUND; |
a90eae18 | 455 | } else { |
456 | storeRelease(entry); | |
9b312a19 | 457 | http->http_code = HTTP_OK; |
a90eae18 | 458 | } |
afa9f1cd | 459 | debug(33, 4) ("clientGetHeadersForIMS: Not modified '%s'\n", |
460 | storeUrl(entry)); | |
461 | /* | |
462 | * Make a new entry to hold the reply to be written | |
463 | * to the client. | |
464 | */ | |
afa9f1cd | 465 | http->entry = clientCreateStoreEntry(http, http->request->method, 0); |
8d6da567 | 466 | httpReplyReset(r = http->entry->mem_obj->reply); |
467 | httpReplySetHeaders(r, 1.0, http->http_code, NULL, NULL, 0, 0, -1); | |
468 | httpReplySwapOut(r, http->entry); | |
afa9f1cd | 469 | storeComplete(http->entry); |
a90eae18 | 470 | } |
e33ba616 | 471 | |
472 | int | |
ea3a2a69 | 473 | checkNegativeHit(StoreEntry * e) |
e33ba616 | 474 | { |
79a15e0a | 475 | if (!EBIT_TEST(e->flag, ENTRY_NEGCACHED)) |
ea3a2a69 | 476 | return 0; |
477 | if (e->expires <= squid_curtime) | |
478 | return 0; | |
479 | if (e->store_status != STORE_OK) | |
480 | return 0; | |
481 | return 1; | |
e33ba616 | 482 | } |
7a2f978b | 483 | |
a7c05555 | 484 | void |
0e473d70 | 485 | clientUpdateCounters(clientHttpRequest * http) |
a7c05555 | 486 | { |
ee1679df | 487 | int svc_time = tvSubMsec(http->start, current_time); |
488 | icp_ping_data *i; | |
8d6da567 | 489 | #if CACHE_DIGEST |
490 | char *t; | |
491 | #endif | |
0e473d70 | 492 | Counter.client_http.requests++; |
493 | kb_incr(&Counter.client_http.kbytes_in, http->req_sz); | |
494 | kb_incr(&Counter.client_http.kbytes_out, http->out.size); | |
495 | if (isTcpHit(http->log_type)) { | |
496 | Counter.client_http.hits++; | |
497 | kb_incr(&Counter.client_http.hit_kbytes_out, http->out.size); | |
498 | } | |
499 | if (http->request->err_type != ERR_NONE) | |
500 | Counter.client_http.errors++; | |
12cf1be2 | 501 | statHistCount(&Counter.client_http.all_svc_time, svc_time); |
ee1679df | 502 | /* |
503 | * The idea here is not to be complete, but to get service times | |
504 | * for only well-defined types. For example, we don't include | |
505 | * LOG_TCP_REFRESH_FAIL_HIT because its not really a cache hit | |
506 | * (we *tried* to validate it, but failed). | |
507 | */ | |
508 | switch (http->log_type) { | |
509 | case LOG_TCP_IMS_HIT: | |
12cf1be2 | 510 | statHistCount(&Counter.client_http.nm_svc_time, svc_time); |
ee1679df | 511 | break; |
512 | case LOG_TCP_HIT: | |
513 | case LOG_TCP_MEM_HIT: | |
12cf1be2 | 514 | statHistCount(&Counter.client_http.hit_svc_time, svc_time); |
ee1679df | 515 | break; |
516 | case LOG_TCP_MISS: | |
517 | case LOG_TCP_CLIENT_REFRESH_MISS: | |
12cf1be2 | 518 | statHistCount(&Counter.client_http.miss_svc_time, svc_time); |
ee1679df | 519 | break; |
520 | default: | |
521 | /* make compiler warnings go away */ | |
522 | break; | |
523 | } | |
524 | i = &http->request->hier.icp; | |
1c605b66 | 525 | if (0 != i->stop.tv_sec && 0 != i->start.tv_sec) |
12cf1be2 | 526 | statHistCount(&Counter.icp.query_svc_time, tvSubUsec(i->start, i->stop)); |
8d6da567 | 527 | #if CACHE_DIGEST |
528 | assert(http->request->hier.used_icp + http->request->hier.used_cd < 2); | |
529 | if (http->request->hier.used_icp) { | |
530 | statHistCount(&Counter.icp.client_svc_time, svc_time); | |
531 | Counter.icp.times_used++; | |
532 | } | |
533 | if (http->request->hier.used_cd) { | |
534 | statHistCount(&Counter.cd.client_svc_time, svc_time); | |
535 | Counter.cd.times_used++; | |
536 | } | |
537 | t = httpHeaderGetLastStr(, HDR_X_CACHE); | |
538 | if (NULL != t && 0 == strncmp(t, "HIT", 3)) { | |
539 | if (http->request->hier.cd_hit) | |
540 | Counter.cd.true_hits++; | |
541 | else | |
542 | Counter.cd.false_miss++; | |
543 | } else { | |
544 | if (http->request->hier.cd_hit) | |
545 | Counter.cd.false_hit++; | |
546 | else | |
547 | Counter.cd.true_miss++; | |
548 | } | |
549 | #endif | |
a7c05555 | 550 | } |
551 | ||
7a2f978b | 552 | static void |
553 | httpRequestFree(void *data) | |
554 | { | |
555 | clientHttpRequest *http = data; | |
556 | clientHttpRequest **H; | |
557 | ConnStateData *conn = http->conn; | |
558 | StoreEntry *entry = http->entry; | |
559 | request_t *request = http->request; | |
560 | MemObject *mem = NULL; | |
93f9abd0 | 561 | debug(33, 3) ("httpRequestFree: %s\n", storeUrl(entry)); |
1b02b5be | 562 | if (!clientCheckTransferDone(http)) { |
7a2f978b | 563 | if (entry) |
564 | storeUnregister(entry, http); /* unregister BEFORE abort */ | |
565 | CheckQuickAbort(http); | |
566 | entry = http->entry; /* reset, IMS might have changed it */ | |
567 | if (entry && entry->ping_status == PING_WAITING) | |
568 | storeReleaseRequest(entry); | |
79d39a72 | 569 | protoUnregister(entry, request); |
7a2f978b | 570 | } |
571 | assert(http->log_type < LOG_TYPE_MAX); | |
572 | if (entry) | |
573 | mem = entry->mem_obj; | |
574 | if (http->out.size || http->log_type) { | |
575 | http->al.icp.opcode = 0; | |
ef65d6ca | 576 | http->al.url = http->log_uri; |
577 | debug(33, 9) ("httpRequestFree: al.url='%s'\n", http->al.url); | |
7a2f978b | 578 | if (mem) { |
cb69b4c7 | 579 | http->al.http.code = mem->reply->sline.status; |
038eb4ed | 580 | http->al.http.content_type = strBuf(mem->reply->content_type); |
7a2f978b | 581 | } |
582 | http->al.cache.caddr = conn->log_addr; | |
583 | http->al.cache.size = http->out.size; | |
584 | http->al.cache.code = http->log_type; | |
585 | http->al.cache.msec = tvSubMsec(http->start, current_time); | |
586 | http->al.cache.ident = conn->ident.ident; | |
587 | if (request) { | |
588 | http->al.http.method = request->method; | |
589 | http->al.headers.request = request->headers; | |
590 | http->al.hier = request->hier; | |
591 | } | |
592 | accessLogLog(&http->al); | |
a7c05555 | 593 | clientUpdateCounters(http); |
6f47fbc7 | 594 | clientdbUpdate(conn->peer.sin_addr, http->log_type, PROTO_HTTP, http->out.size); |
7a2f978b | 595 | } |
596 | if (http->redirect_state == REDIRECT_PENDING) | |
23d92c64 | 597 | redirectUnregister(http->uri, http); |
7a2f978b | 598 | if (http->acl_checklist) |
599 | aclChecklistFree(http->acl_checklist); | |
88aad2e5 | 600 | if (request) |
c24fca87 | 601 | checkFailureRatio(request->err_type, http->al.hier.code); |
23d92c64 | 602 | safe_free(http->uri); |
603 | safe_free(http->log_uri); | |
7a2f978b | 604 | safe_free(http->al.headers.reply); |
605 | if (entry) { | |
606 | http->entry = NULL; | |
607 | storeUnregister(entry, http); | |
608 | storeUnlockObject(entry); | |
609 | } | |
610 | /* old_entry might still be set if we didn't yet get the reply | |
1b02b5be | 611 | * code in clientHandleIMSReply() */ |
7a2f978b | 612 | if (http->old_entry) { |
613 | storeUnregister(http->old_entry, http); | |
614 | storeUnlockObject(http->old_entry); | |
615 | http->old_entry = NULL; | |
616 | } | |
617 | requestUnlink(http->request); | |
618 | assert(http != http->next); | |
619 | assert(http->conn->chr != NULL); | |
620 | H = &http->conn->chr; | |
621 | while (*H) { | |
622 | if (*H == http) | |
623 | break; | |
624 | H = &(*H)->next; | |
625 | } | |
626 | assert(*H != NULL); | |
627 | *H = http->next; | |
628 | http->next = NULL; | |
629 | cbdataFree(http); | |
630 | } | |
631 | ||
632 | /* This is a handler normally called by comm_close() */ | |
633 | static void | |
634 | connStateFree(int fd, void *data) | |
635 | { | |
636 | ConnStateData *connState = data; | |
637 | clientHttpRequest *http; | |
93f9abd0 | 638 | debug(33, 3) ("connStateFree: FD %d\n", fd); |
7a2f978b | 639 | assert(connState != NULL); |
79d39a72 | 640 | while ((http = connState->chr) != NULL) { |
7a2f978b | 641 | assert(http->conn == connState); |
642 | assert(connState->chr != connState->chr->next); | |
643 | httpRequestFree(http); | |
644 | } | |
645 | if (connState->ident.fd > -1) | |
646 | comm_close(connState->ident.fd); | |
647 | safe_free(connState->in.buf); | |
59c4d35b | 648 | /* XXX account connState->in.buf */ |
7a2f978b | 649 | pconnHistCount(0, connState->nrequests); |
650 | cbdataFree(connState); | |
651 | } | |
652 | ||
653 | static void | |
50ddd7a4 | 654 | clientParseRequestHeaders(clientHttpRequest * http) |
7a2f978b | 655 | { |
656 | request_t *request = http->request; | |
657 | char *request_hdr = request->headers; | |
658 | char *t = NULL; | |
659 | request->ims = -2; | |
660 | request->imslen = -1; | |
661 | if ((t = mime_get_header(request_hdr, "If-Modified-Since"))) { | |
79a15e0a | 662 | EBIT_SET(request->flags, REQ_IMS); |
7a2f978b | 663 | request->ims = parse_rfc1123(t); |
664 | while ((t = strchr(t, ';'))) { | |
665 | for (t++; isspace(*t); t++); | |
666 | if (strncasecmp(t, "length=", 7) == 0) | |
667 | request->imslen = atoi(t + 7); | |
668 | } | |
669 | } | |
4e41e277 | 670 | if ((t = mime_get_header_field(request_hdr, "Pragma", "no-cache"))) { |
671 | EBIT_SET(request->flags, REQ_NOCACHE); | |
7a2f978b | 672 | } |
673 | if (mime_get_header(request_hdr, "Range")) { | |
79a15e0a | 674 | EBIT_SET(request->flags, REQ_NOCACHE); |
675 | EBIT_SET(request->flags, REQ_RANGE); | |
7a2f978b | 676 | } else if (mime_get_header(request_hdr, "Request-Range")) { |
79a15e0a | 677 | EBIT_SET(request->flags, REQ_NOCACHE); |
678 | EBIT_SET(request->flags, REQ_RANGE); | |
7a2f978b | 679 | } |
680 | if (mime_get_header(request_hdr, "Authorization")) | |
79a15e0a | 681 | EBIT_SET(request->flags, REQ_AUTH); |
7a2f978b | 682 | if (request->login[0] != '\0') |
79a15e0a | 683 | EBIT_SET(request->flags, REQ_AUTH); |
7a2f978b | 684 | if ((t = mime_get_header(request_hdr, "Proxy-Connection"))) { |
685 | if (!strcasecmp(t, "Keep-Alive")) | |
79a15e0a | 686 | EBIT_SET(request->flags, REQ_PROXY_KEEPALIVE); |
7a2f978b | 687 | } |
d21f1c54 | 688 | if ((t = mime_get_header(request_hdr, "Via"))) { |
7a2f978b | 689 | if (strstr(t, ThisCache)) { |
690 | if (!http->accel) { | |
93f9abd0 | 691 | debug(33, 1) ("WARNING: Forwarding loop detected for '%s'\n", |
23d92c64 | 692 | http->uri); |
93f9abd0 | 693 | debug(33, 1) ("--> %s\n", t); |
7a2f978b | 694 | } |
79a15e0a | 695 | EBIT_SET(request->flags, REQ_LOOPDETECT); |
7a2f978b | 696 | } |
d21f1c54 | 697 | #if FORW_VIA_DB |
698 | fvdbCountVia(t); | |
699 | #endif | |
700 | } | |
7a2f978b | 701 | #if USE_USERAGENT_LOG |
702 | if ((t = mime_get_header(request_hdr, "User-Agent"))) | |
703 | logUserAgent(fqdnFromAddr(http->conn->peer.sin_addr), t); | |
d21f1c54 | 704 | #endif |
705 | #if FORW_VIA_DB | |
706 | if ((t = mime_get_header(request_hdr, "X-Forwarded-For"))) | |
707 | fvdbCountForw(t); | |
7a2f978b | 708 | #endif |
4e41e277 | 709 | if ((t = mime_get_header_field(request_hdr, "Cache-control", "max-age="))) { |
710 | request->max_age = atoi(t + 8); | |
711 | } else { | |
712 | request->max_age = -1; | |
713 | } | |
714 | if ((t = mime_get_header_field(request_hdr, "Cache-control", "only-if-cached"))) { | |
715 | EBIT_SET(request->flags, REQ_CC_ONLY_IF_CACHED); | |
7a2f978b | 716 | } |
717 | if (request->method == METHOD_TRACE) { | |
718 | if ((t = mime_get_header(request_hdr, "Max-Forwards"))) | |
719 | request->max_forwards = atoi(t); | |
720 | } | |
50ddd7a4 | 721 | if (clientCachable(http)) |
722 | EBIT_SET(request->flags, REQ_CACHABLE); | |
723 | if (clientHierarchical(http)) | |
724 | EBIT_SET(request->flags, REQ_HIERARCHICAL); | |
93f9abd0 | 725 | debug(33, 5) ("clientParseRequestHeaders: REQ_NOCACHE = %s\n", |
50ddd7a4 | 726 | EBIT_TEST(request->flags, REQ_NOCACHE) ? "SET" : "NOT SET"); |
93f9abd0 | 727 | debug(33, 5) ("clientParseRequestHeaders: REQ_CACHABLE = %s\n", |
50ddd7a4 | 728 | EBIT_TEST(request->flags, REQ_CACHABLE) ? "SET" : "NOT SET"); |
93f9abd0 | 729 | debug(33, 5) ("clientParseRequestHeaders: REQ_HIERARCHICAL = %s\n", |
50ddd7a4 | 730 | EBIT_TEST(request->flags, REQ_HIERARCHICAL) ? "SET" : "NOT SET"); |
7a2f978b | 731 | } |
732 | ||
31be8b80 | 733 | static int |
efb9218c | 734 | clientCheckContentLength(request_t * r) |
31be8b80 | 735 | { |
736 | char *t; | |
737 | int len; | |
738 | /* | |
efb9218c | 739 | * We only require a content-length for "upload" methods |
31be8b80 | 740 | */ |
efb9218c | 741 | if (0 == pumpMethod(r->method)) |
31be8b80 | 742 | return 1; |
31be8b80 | 743 | t = mime_get_header(r->headers, "Content-Length"); |
efb9218c | 744 | if (NULL == t) |
31be8b80 | 745 | return 0; |
746 | len = atoi(t); | |
747 | if (len < 0) | |
748 | return 0; | |
749 | return 1; | |
750 | } | |
751 | ||
7a2f978b | 752 | static int |
50ddd7a4 | 753 | clientCachable(clientHttpRequest * http) |
7a2f978b | 754 | { |
23d92c64 | 755 | const char *url = http->uri; |
7a2f978b | 756 | request_t *req = http->request; |
757 | method_t method = req->method; | |
758 | const wordlist *p; | |
759 | for (p = Config.cache_stoplist; p; p = p->next) { | |
760 | if (strstr(url, p->key)) | |
761 | return 0; | |
762 | } | |
763 | if (Config.cache_stop_relist) | |
764 | if (aclMatchRegex(Config.cache_stop_relist, url)) | |
765 | return 0; | |
766 | if (req->protocol == PROTO_HTTP) | |
767 | return httpCachable(method); | |
768 | /* FTP is always cachable */ | |
769 | if (req->protocol == PROTO_GOPHER) | |
770 | return gopherCachable(url); | |
771 | if (req->protocol == PROTO_WAIS) | |
772 | return 0; | |
773 | if (method == METHOD_CONNECT) | |
774 | return 0; | |
775 | if (method == METHOD_TRACE) | |
776 | return 0; | |
777 | if (req->protocol == PROTO_CACHEOBJ) | |
778 | return 0; | |
779 | return 1; | |
780 | } | |
781 | ||
782 | /* Return true if we can query our neighbors for this object */ | |
783 | static int | |
50ddd7a4 | 784 | clientHierarchical(clientHttpRequest * http) |
7a2f978b | 785 | { |
23d92c64 | 786 | const char *url = http->uri; |
7a2f978b | 787 | request_t *request = http->request; |
788 | method_t method = request->method; | |
789 | const wordlist *p = NULL; | |
790 | ||
791 | /* IMS needs a private key, so we can use the hierarchy for IMS only | |
792 | * if our neighbors support private keys */ | |
79a15e0a | 793 | if (EBIT_TEST(request->flags, REQ_IMS) && !neighbors_do_private_keys) |
7a2f978b | 794 | return 0; |
79a15e0a | 795 | if (EBIT_TEST(request->flags, REQ_AUTH)) |
7a2f978b | 796 | return 0; |
797 | if (method == METHOD_TRACE) | |
798 | return 1; | |
799 | if (method != METHOD_GET) | |
800 | return 0; | |
801 | /* scan hierarchy_stoplist */ | |
802 | for (p = Config.hierarchy_stoplist; p; p = p->next) | |
803 | if (strstr(url, p->key)) | |
804 | return 0; | |
79a15e0a | 805 | if (EBIT_TEST(request->flags, REQ_LOOPDETECT)) |
7a2f978b | 806 | return 0; |
807 | if (request->protocol == PROTO_HTTP) | |
808 | return httpCachable(method); | |
809 | if (request->protocol == PROTO_GOPHER) | |
810 | return gopherCachable(url); | |
811 | if (request->protocol == PROTO_WAIS) | |
812 | return 0; | |
813 | if (request->protocol == PROTO_CACHEOBJ) | |
814 | return 0; | |
815 | return 1; | |
816 | } | |
817 | ||
cf50a0af | 818 | int |
7a2f978b | 819 | isTcpHit(log_type code) |
820 | { | |
821 | /* this should be a bitmap for better optimization */ | |
822 | if (code == LOG_TCP_HIT) | |
823 | return 1; | |
824 | if (code == LOG_TCP_IMS_HIT) | |
825 | return 1; | |
826 | if (code == LOG_TCP_REFRESH_FAIL_HIT) | |
827 | return 1; | |
828 | if (code == LOG_TCP_REFRESH_HIT) | |
829 | return 1; | |
830 | if (code == LOG_TCP_NEGATIVE_HIT) | |
831 | return 1; | |
832 | if (code == LOG_TCP_MEM_HIT) | |
833 | return 1; | |
834 | return 0; | |
835 | } | |
836 | ||
837 | static void | |
838 | clientAppendReplyHeader(char *hdr, const char *line, size_t * sz, size_t max) | |
839 | { | |
840 | size_t n = *sz + strlen(line) + 2; | |
841 | if (n >= max) | |
842 | return; | |
843 | strcpy(hdr + (*sz), line); | |
844 | strcat(hdr + (*sz), crlf); | |
845 | *sz = n; | |
846 | } | |
847 | ||
adba4a64 | 848 | /* this entire function has to be rewriten using new interfaces @?@ @?@ */ |
7a2f978b | 849 | size_t |
850 | clientBuildReplyHeader(clientHttpRequest * http, | |
851 | char *hdr_in, | |
2334c194 | 852 | size_t hdr_in_sz, |
7a2f978b | 853 | size_t * in_len, |
854 | char *hdr_out, | |
855 | size_t out_sz) | |
856 | { | |
ab013258 | 857 | LOCAL_ARRAY(char, no_forward, 1024); |
7a2f978b | 858 | char *xbuf; |
859 | char *ybuf; | |
860 | char *t = NULL; | |
2334c194 | 861 | char *end; |
7a2f978b | 862 | size_t len = 0; |
863 | size_t hdr_len = 0; | |
864 | size_t l; | |
efb9218c | 865 | if (0 != strncmp(hdr_in, "HTTP/", 5)) |
866 | return 0; | |
2334c194 | 867 | hdr_len = headersEnd(hdr_in, hdr_in_sz); |
8e8731ad | 868 | if (0 == hdr_len) { |
93f9abd0 | 869 | debug(33, 3) ("clientBuildReplyHeader: DIDN'T FIND END-OF-HEADERS\n"); |
7a2f978b | 870 | return 0; |
871 | } | |
7021844c | 872 | xbuf = memAllocate(MEM_4K_BUF); |
873 | ybuf = memAllocate(MEM_4K_BUF); | |
2334c194 | 874 | end = hdr_in + hdr_len; |
7a2f978b | 875 | for (t = hdr_in; t < end; t += strcspn(t, crlf), t += strspn(t, crlf)) { |
7a2f978b | 876 | l = strcspn(t, crlf) + 1; |
8febe7df | 877 | /* Wow, we might find a NULL before 'end' */ |
878 | if (1 == l) | |
879 | break; | |
7a2f978b | 880 | xstrncpy(xbuf, t, l > 4096 ? 4096 : l); |
ae1acd0b | 881 | /* enforce 1.0 reply version, this hack will be rewritten */ |
2334c194 | 882 | if (t == hdr_in && !strncasecmp(xbuf, "HTTP/", 5) && l > 8 && |
2ac76861 | 883 | (isspace(xbuf[8]) || isspace(xbuf[9]))) |
884 | xmemmove(xbuf + 5, "1.0 ", 4); | |
901e234d | 885 | #if DONT_FILTER_THESE |
886 | /* | |
887 | * but you might want to if you run Squid as a HTTP accelerator | |
888 | */ | |
7a2f978b | 889 | if (strncasecmp(xbuf, "Accept-Ranges:", 14) == 0) |
890 | continue; | |
891 | if (strncasecmp(xbuf, "Etag:", 5) == 0) | |
892 | continue; | |
893 | #endif | |
894 | if (strncasecmp(xbuf, "Proxy-Connection:", 17) == 0) | |
895 | continue; | |
ab013258 | 896 | if (strncasecmp(xbuf, "Connection:", 11) == 0) { |
897 | handleConnectionHeader(0, no_forward, &xbuf[11]); | |
7a2f978b | 898 | continue; |
ab013258 | 899 | } |
7a2f978b | 900 | if (strncasecmp(xbuf, "Keep-Alive:", 11) == 0) |
901 | continue; | |
902 | if (strncasecmp(xbuf, "Set-Cookie:", 11) == 0) | |
903 | if (isTcpHit(http->log_type)) | |
904 | continue; | |
ab013258 | 905 | if (!handleConnectionHeader(1, no_forward, xbuf)) |
906 | clientAppendReplyHeader(hdr_out, xbuf, &len, out_sz - 512); | |
7a2f978b | 907 | } |
7a2f978b | 908 | /* Append X-Cache: */ |
02941a5d | 909 | snprintf(ybuf, 4096, "X-Cache: %s from %s", |
910 | isTcpHit(http->log_type) ? "HIT" : "MISS", | |
911 | getMyHostname()); | |
7a2f978b | 912 | clientAppendReplyHeader(hdr_out, ybuf, &len, out_sz); |
913 | /* Append Proxy-Connection: */ | |
79a15e0a | 914 | if (EBIT_TEST(http->request->flags, REQ_PROXY_KEEPALIVE)) { |
7a2f978b | 915 | snprintf(ybuf, 4096, "Proxy-Connection: Keep-Alive"); |
916 | clientAppendReplyHeader(hdr_out, ybuf, &len, out_sz); | |
917 | } | |
918 | clientAppendReplyHeader(hdr_out, null_string, &len, out_sz); | |
919 | if (in_len) | |
920 | *in_len = hdr_len; | |
921 | if ((l = strlen(hdr_out)) != len) { | |
922 | debug_trap("clientBuildReplyHeader: size mismatch"); | |
923 | len = l; | |
924 | } | |
93f9abd0 | 925 | debug(33, 3) ("clientBuildReplyHeader: OUTPUT:\n%s\n", hdr_out); |
3f6c0fb2 | 926 | memFree(MEM_4K_BUF, xbuf); |
927 | memFree(MEM_4K_BUF, ybuf); | |
7a2f978b | 928 | return len; |
929 | } | |
930 | ||
4c323c5f | 931 | static void |
7a2f978b | 932 | clientCacheHit(void *data, char *buf, ssize_t size) |
933 | { | |
934 | clientHttpRequest *http = data; | |
93f9abd0 | 935 | debug(33, 3) ("clientCacheHit: %s, %d bytes\n", http->uri, (int) size); |
7a2f978b | 936 | if (size >= 0) { |
937 | clientSendMoreData(data, buf, size); | |
938 | } else if (http->entry == NULL) { | |
93f9abd0 | 939 | debug(33, 3) ("clientCacheHit: request aborted\n"); |
7a2f978b | 940 | } else { |
941 | /* swap in failure */ | |
93f9abd0 | 942 | debug(33, 3) ("clientCacheHit: swapin failure for %s\n", http->uri); |
7a2f978b | 943 | http->log_type = LOG_TCP_SWAPFAIL_MISS; |
6cf028ab | 944 | if (http->entry) |
945 | storeRelease(http->entry); | |
fb63215a | 946 | clientProcessMiss(http); |
7a2f978b | 947 | } |
948 | } | |
949 | ||
4c323c5f | 950 | static void |
7a2f978b | 951 | clientSendMoreData(void *data, char *buf, ssize_t size) |
952 | { | |
953 | clientHttpRequest *http = data; | |
954 | StoreEntry *entry = http->entry; | |
955 | ConnStateData *conn = http->conn; | |
956 | int fd = conn->fd; | |
7a2f978b | 957 | size_t hdrlen; |
958 | size_t l = 0; | |
959 | size_t writelen; | |
960 | char *newbuf; | |
3f6c0fb2 | 961 | FREE *freefunc = memFree4K; |
93f9abd0 | 962 | debug(33, 5) ("clientSendMoreData: %s, %d bytes\n", http->uri, (int) size); |
7a2f978b | 963 | assert(size <= SM_PAGE_SIZE); |
40defb17 | 964 | assert(http->request != NULL); |
93f9abd0 | 965 | debug(33, 5) ("clientSendMoreData: FD %d '%s', out.offset=%d \n", |
5f6ac48b | 966 | fd, storeUrl(entry), (int) http->out.offset); |
7a2f978b | 967 | if (conn->chr != http) { |
968 | /* there is another object in progress, defer this one */ | |
a43b3862 | 969 | debug(0, 0) ("clientSendMoreData: Deferring %s\n", storeUrl(entry)); |
7a2f978b | 970 | freefunc(buf); |
971 | return; | |
972 | } else if (entry->store_status == STORE_ABORTED) { | |
d6e928c9 | 973 | /* call clientWriteComplete so the client socket gets closed */ |
974 | clientWriteComplete(fd, NULL, 0, COMM_OK, http); | |
7a2f978b | 975 | freefunc(buf); |
976 | return; | |
977 | } else if (size < 0) { | |
d6e928c9 | 978 | /* call clientWriteComplete so the client socket gets closed */ |
979 | clientWriteComplete(fd, NULL, 0, COMM_OK, http); | |
7a2f978b | 980 | freefunc(buf); |
981 | return; | |
982 | } else if (size == 0) { | |
d6e928c9 | 983 | /* call clientWriteComplete so the client socket gets closed */ |
984 | clientWriteComplete(fd, NULL, 0, COMM_OK, http); | |
7a2f978b | 985 | freefunc(buf); |
986 | return; | |
987 | } | |
988 | writelen = size; | |
40defb17 | 989 | if (http->out.offset == 0) { |
7a2f978b | 990 | if (Config.onoff.log_mime_hdrs) { |
2334c194 | 991 | size_t k; |
992 | if ((k = headersEnd(buf, size))) { | |
7a2f978b | 993 | safe_free(http->al.headers.reply); |
1afe05c5 | 994 | http->al.headers.reply = xcalloc(k + 1, 1); |
2334c194 | 995 | xstrncpy(http->al.headers.reply, buf, k); |
7a2f978b | 996 | } |
997 | } | |
7021844c | 998 | newbuf = memAllocate(MEM_8K_BUF); |
7a2f978b | 999 | hdrlen = 0; |
2334c194 | 1000 | l = clientBuildReplyHeader(http, buf, size, &hdrlen, newbuf, 8192); |
7a2f978b | 1001 | if (l != 0) { |
1002 | writelen = l + size - hdrlen; | |
1003 | assert(writelen <= 8192); | |
1004 | /* | |
1005 | * l is the length of the new headers in newbuf | |
1006 | * hdrlen is the length of the old headers in buf | |
1007 | * size - hdrlen is the amount of body in buf | |
1008 | */ | |
93f9abd0 | 1009 | debug(33, 3) ("clientSendMoreData: Appending %d bytes after headers\n", |
7a2f978b | 1010 | (int) (size - hdrlen)); |
6cf028ab | 1011 | if (((size - hdrlen) + l) > 8192) { |
0e473d70 | 1012 | debug(0, 0) ("Size, hdrlen, l %d, %d, %d\n", size, hdrlen, l); |
6cf028ab | 1013 | return; |
1014 | } | |
7a2f978b | 1015 | xmemcpy(newbuf + l, buf + hdrlen, size - hdrlen); |
1016 | /* replace buf with newbuf */ | |
1017 | freefunc(buf); | |
1018 | buf = newbuf; | |
3f6c0fb2 | 1019 | freefunc = memFree8K; |
7a2f978b | 1020 | newbuf = NULL; |
1021 | } else { | |
3f6c0fb2 | 1022 | memFree(MEM_8K_BUF, newbuf); |
7a2f978b | 1023 | newbuf = NULL; |
1024 | if (size < SM_PAGE_SIZE && entry->store_status == STORE_PENDING) { | |
1025 | /* wait for more to arrive */ | |
1026 | storeClientCopy(entry, | |
1027 | http->out.offset + size, | |
1028 | http->out.offset, | |
1029 | SM_PAGE_SIZE, | |
1030 | buf, | |
1031 | clientSendMoreData, | |
1032 | http); | |
1033 | return; | |
1034 | } | |
1035 | } | |
1036 | } | |
1037 | http->out.offset += size; | |
40defb17 | 1038 | /* |
1039 | * ick, this is gross | |
1040 | */ | |
7a2f978b | 1041 | if (http->request->method == METHOD_HEAD) { |
2334c194 | 1042 | size_t k; |
1043 | if ((k = headersEnd(buf, size))) { | |
1044 | writelen = k; | |
7a2f978b | 1045 | /* force end */ |
f68b5d81 | 1046 | if (entry->store_status == STORE_PENDING) |
c24fca87 | 1047 | http->out.offset = entry->mem_obj->inmem_hi; |
f68b5d81 | 1048 | else |
07304bf9 | 1049 | http->out.offset = objectLen(entry); |
7a2f978b | 1050 | } |
1051 | } | |
1052 | comm_write(fd, buf, writelen, clientWriteComplete, http, freefunc); | |
1053 | } | |
1054 | ||
1a92a1e2 | 1055 | static |
1056 | void | |
1057 | clientKeepaliveNextRequest(clientHttpRequest * http) | |
1058 | { | |
1059 | ConnStateData *conn = http->conn; | |
1060 | StoreEntry *entry; | |
1061 | conn->defer.until = 0; /* Kick it to read a new request */ | |
1062 | httpRequestFree(http); | |
1063 | if ((http = conn->chr) != NULL) { | |
1064 | debug(33, 1) ("clientKeepaliveNextRequest: FD %d Sending next\n", | |
1065 | conn->fd); | |
1066 | entry = http->entry; | |
1067 | if (0 == storeClientCopyPending(entry, http)) { | |
1068 | if (entry->store_status == STORE_ABORTED) | |
1069 | debug(33, 0) ("clientWriteComplete: entry->swap_status == STORE_ABORTED\n"); | |
1070 | storeClientCopy(entry, | |
1071 | http->out.offset, | |
1072 | http->out.offset, | |
1073 | SM_PAGE_SIZE, | |
1074 | memAllocate(MEM_4K_BUF), | |
1075 | clientSendMoreData, | |
1076 | http); | |
1077 | } | |
1078 | } else { | |
1079 | debug(33, 5) ("clientWriteComplete: FD %d reading next request\n", | |
1080 | conn->fd); | |
1081 | fd_note(conn->fd, "Reading next request"); | |
1082 | /* | |
1083 | * Set the timeout BEFORE calling clientReadRequest(). | |
1084 | */ | |
1085 | commSetTimeout(conn->fd, 15, requestTimeout, conn); | |
1086 | clientReadRequest(conn->fd, conn); /* Read next request */ | |
1087 | /* | |
1088 | * Note, the FD may be closed at this point. | |
1089 | */ | |
1090 | } | |
1091 | } | |
1092 | ||
fc5d6f7f | 1093 | static void |
79a15e0a | 1094 | clientWriteComplete(int fd, char *bufnotused, size_t size, int errflag, void *data) |
7a2f978b | 1095 | { |
1096 | clientHttpRequest *http = data; | |
7a2f978b | 1097 | StoreEntry *entry = http->entry; |
b34ed725 | 1098 | int done; |
7a2f978b | 1099 | http->out.size += size; |
93f9abd0 | 1100 | debug(33, 5) ("clientWriteComplete: FD %d, sz %d, err %d, off %d, len %d\n", |
5f6ac48b | 1101 | fd, size, errflag, (int) http->out.offset, objectLen(entry)); |
7a2f978b | 1102 | if (errflag) { |
36547bcf | 1103 | #if DONT_DO_THIS |
1104 | /* | |
1105 | * Not sure why this CheckQuickAbort() would be needed here. | |
1106 | * We also call CheckQuickAbort() in httpRequestFree(), which | |
1107 | * gets called as a comm_close handler. We need to be careful | |
1108 | * that CheckQuickAbort() gets called only ONCE, and AFTER | |
1109 | * storeUnregister() has been called. [DW/1.2.beta18] | |
1110 | */ | |
7a2f978b | 1111 | CheckQuickAbort(http); |
36547bcf | 1112 | #endif |
7a2f978b | 1113 | comm_close(fd); |
1114 | } else if (entry->store_status == STORE_ABORTED) { | |
7a2f978b | 1115 | comm_close(fd); |
a200bbd2 | 1116 | } else if ((done = clientCheckTransferDone(http)) != 0 || size == 0) { |
93f9abd0 | 1117 | debug(33, 5) ("clientWriteComplete: FD %d transfer is DONE\n", fd); |
7a2f978b | 1118 | /* We're finished case */ |
038eb4ed | 1119 | if (http->entry->mem_obj->reply->content_length < 0 || !done || |
b34ed725 | 1120 | EBIT_TEST(entry->flag, ENTRY_BAD_LENGTH)) { |
1121 | /* | |
1122 | * Client connection closed due to unknown or invalid | |
1123 | * content length. Persistent connection is not possible. | |
1124 | * This catches most cases, but probably not all. | |
1125 | */ | |
7a2f978b | 1126 | comm_close(fd); |
79a15e0a | 1127 | } else if (EBIT_TEST(http->request->flags, REQ_PROXY_KEEPALIVE)) { |
93f9abd0 | 1128 | debug(33, 5) ("clientWriteComplete: FD %d Keeping Alive\n", fd); |
1a92a1e2 | 1129 | clientKeepaliveNextRequest(http); |
7a2f978b | 1130 | } else { |
1131 | comm_close(fd); | |
1132 | } | |
1133 | } else { | |
1134 | /* More data will be coming from primary server; register with | |
1135 | * storage manager. */ | |
0e473d70 | 1136 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 1137 | debug(33, 0) ("clientWriteComplete 2: entry->swap_status == STORE_ABORTED\n"); |
7a2f978b | 1138 | storeClientCopy(entry, |
1139 | http->out.offset, | |
1140 | http->out.offset, | |
1141 | SM_PAGE_SIZE, | |
7021844c | 1142 | memAllocate(MEM_4K_BUF), |
7a2f978b | 1143 | clientSendMoreData, |
1144 | http); | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | static void | |
1b02b5be | 1149 | clientGetHeadersForIMS(void *data, char *buf, ssize_t size) |
7a2f978b | 1150 | { |
1151 | clientHttpRequest *http = data; | |
7a2f978b | 1152 | StoreEntry *entry = http->entry; |
dd83ba69 | 1153 | MemObject *mem; |
afa9f1cd | 1154 | MemBuf mb; |
93f9abd0 | 1155 | debug(33, 3) ("clientGetHeadersForIMS: %s, %d bytes\n", |
1156 | http->uri, (int) size); | |
7a2f978b | 1157 | assert(size <= SM_PAGE_SIZE); |
3f6c0fb2 | 1158 | memFree(MEM_4K_BUF, buf); |
1b02b5be | 1159 | buf = NULL; |
6cf028ab | 1160 | if (size < 0 || entry->store_status == STORE_ABORTED) { |
8d4f9bc8 | 1161 | /* |
1162 | * There are different reasons why we might have size < 0. One | |
1163 | * being that we failed to open a swapfile. Another being that | |
1164 | * the request was cancelled from the client-side. If the client | |
1165 | * cancelled the request, then http->entry will be NULL. | |
1166 | */ | |
1167 | if (entry != NULL) { | |
1168 | debug(33, 1) ("clientGetHeadersForIMS: storeClientCopy failed for '%s'\n", | |
1169 | storeKeyText(entry->key)); | |
1170 | clientProcessMiss(http); | |
1171 | } | |
7a2f978b | 1172 | return; |
1173 | } | |
dd83ba69 | 1174 | mem = entry->mem_obj; |
cb69b4c7 | 1175 | if (mem->reply->sline.status == 0) { |
7a2f978b | 1176 | if (entry->mem_status == IN_MEMORY) { |
fb63215a | 1177 | clientProcessMiss(http); |
7a2f978b | 1178 | return; |
1179 | } | |
93f9abd0 | 1180 | if (size == SM_PAGE_SIZE && http->out.offset == 0) { |
1181 | /* | |
1182 | * We can't get any more headers than this, so bail | |
1183 | */ | |
1184 | debug(33, 1) ("clientGetHeadersForIMS: failed, forcing cache miss\n"); | |
1185 | clientProcessMiss(http); | |
1186 | return; | |
1187 | } | |
1188 | debug(33, 3) ("clientGetHeadersForIMS: waiting for HTTP reply headers\n"); | |
7a2f978b | 1189 | /* All headers are not yet available, wait for more data */ |
0e473d70 | 1190 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 1191 | debug(33, 0) ("clientGetHeadersForIMS: entry->swap_status == STORE_ABORTED\n"); |
7a2f978b | 1192 | storeClientCopy(entry, |
1193 | http->out.offset + size, | |
1194 | http->out.offset, | |
1195 | SM_PAGE_SIZE, | |
7021844c | 1196 | memAllocate(MEM_4K_BUF), |
1b02b5be | 1197 | clientGetHeadersForIMS, |
7a2f978b | 1198 | http); |
1199 | return; | |
1200 | } | |
1201 | /* All headers are available, check if object is modified or not */ | |
1202 | /* --------------------------------------------------------------- | |
cb69b4c7 | 1203 | * Removed check for reply->sline.status != 200 because of a potential |
7a2f978b | 1204 | * problem with ICP. We will return a HIT for any public, cached |
1205 | * object. This includes other responses like 301, 410, as coded in | |
1206 | * http.c. It is Bad(tm) to return UDP_HIT and then, if the reply | |
50ddd7a4 | 1207 | * code is not 200, hand off to clientProcessMiss(), which may disallow |
7a2f978b | 1208 | * the request based on 'miss_access' rules. Alternatively, we might |
1209 | * consider requiring returning UDP_HIT only for 200's. This | |
1210 | * problably means an entry->flag bit, which would be lost during | |
1211 | * restart because the flags aren't preserved across restarts. | |
1212 | * --DW 3/11/96. | |
1213 | * ---------------------------------------------------------------- */ | |
1214 | #ifdef CHECK_REPLY_CODE_NOTEQUAL_200 | |
1215 | /* Only objects with statuscode==200 can be "Not modified" */ | |
cb69b4c7 | 1216 | if (mem->reply->sline.status != 200) { |
93f9abd0 | 1217 | debug(33, 4) ("clientGetHeadersForIMS: Reply code %d!=200\n", |
cb69b4c7 | 1218 | mem->reply->sline.status); |
fb63215a | 1219 | clientProcessMiss(http); |
7a2f978b | 1220 | return; |
1221 | } | |
7a2f978b | 1222 | #endif |
1b02b5be | 1223 | http->log_type = LOG_TCP_IMS_HIT; |
7a2f978b | 1224 | entry->refcount++; |
1225 | if (modifiedSince(entry, http->request)) { | |
0e473d70 | 1226 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 1227 | debug(33, 0) ("clientGetHeadersForIMS 2: entry->swap_status == STORE_ABORTED\n"); |
7a2f978b | 1228 | storeClientCopy(entry, |
1229 | http->out.offset, | |
1230 | http->out.offset, | |
1231 | SM_PAGE_SIZE, | |
7021844c | 1232 | memAllocate(MEM_4K_BUF), |
7a2f978b | 1233 | clientSendMoreData, |
1234 | http); | |
1235 | return; | |
1236 | } | |
afa9f1cd | 1237 | debug(33, 4) ("clientGetHeadersForIMS: Not modified '%s'\n", |
1238 | storeUrl(entry)); | |
1239 | /* | |
1240 | * Create the Not-Modified reply from the existing entry, | |
1241 | * Then make a new entry to hold the reply to be written | |
1242 | * to the client. | |
1243 | */ | |
1244 | mb = httpPacked304Reply(mem->reply); | |
7a2f978b | 1245 | storeUnregister(entry, http); |
1246 | storeUnlockObject(entry); | |
afa9f1cd | 1247 | http->entry = clientCreateStoreEntry(http, http->request->method, 0); |
1248 | httpReplyParse(http->entry->mem_obj->reply, mb.buf); | |
1249 | storeAppend(http->entry, mb.buf, mb.size); | |
8d6da567 | 1250 | memBufClean(&mb); |
afa9f1cd | 1251 | storeComplete(http->entry); |
7a2f978b | 1252 | } |
1253 | ||
038eb4ed | 1254 | /* |
1255 | * client issued a request with an only-if-cached cache-control directive | |
1256 | * we did not find a cached object that can be returned without | |
1257 | * contacting other servers | |
1258 | * respond with a 504 (Gateway Timeout) as suggested in [RFC 2068] | |
1259 | */ | |
1260 | static void | |
1261 | clientProcessOnlyIfCachedMiss(clientHttpRequest * http) | |
1262 | { | |
1263 | char *url = http->uri; | |
1264 | request_t *r = http->request; | |
1265 | ErrorState *err = NULL; | |
1266 | debug(33, 4) ("clientProcessOnlyIfCachedMiss: '%s %s'\n", | |
1267 | RequestMethodStr[r->method], url); | |
1268 | debug(33, 10) ("clientProcessMiss: request_hdr:\n%s\n", r->headers); | |
1269 | http->al.http.code = HTTP_GATEWAY_TIMEOUT; | |
1270 | err = errorCon(ERR_ONLY_IF_CACHED_MISS, HTTP_GATEWAY_TIMEOUT); | |
1271 | err->request = requestLink(r); | |
1272 | err->src_addr = http->conn->peer.sin_addr; | |
1273 | http->entry = clientCreateStoreEntry(http, r->method, 0); | |
1274 | errorAppendEntry(http->entry, err); | |
1275 | } | |
1276 | ||
50ddd7a4 | 1277 | static log_type |
1278 | clientProcessRequest2(clientHttpRequest * http) | |
1279 | { | |
1280 | const request_t *r = http->request; | |
23d92c64 | 1281 | const cache_key *key = storeKeyPublic(http->uri, r->method); |
50ddd7a4 | 1282 | StoreEntry *e; |
1283 | if ((e = http->entry = storeGet(key)) == NULL) { | |
1284 | /* this object isn't in the cache */ | |
1285 | return LOG_TCP_MISS; | |
1286 | } else if (EBIT_TEST(e->flag, ENTRY_SPECIAL)) { | |
12784378 | 1287 | /* ideally, special entries should be processed later, |
1288 | * so we can use std processing routines for IMS and such */ | |
1289 | if (EBIT_TEST(r->flags, REQ_IMS) && e->lastmod <= r->ims) | |
1290 | return LOG_TCP_IMS_HIT; | |
1291 | else | |
50ddd7a4 | 1292 | if (e->mem_status == IN_MEMORY) |
1293 | return LOG_TCP_MEM_HIT; | |
1294 | else | |
1295 | return LOG_TCP_HIT; | |
1296 | } else if (!storeEntryValidToSend(e)) { | |
1297 | storeRelease(e); | |
1298 | http->entry = NULL; | |
1299 | return LOG_TCP_MISS; | |
1300 | } else if (EBIT_TEST(r->flags, REQ_NOCACHE)) { | |
1301 | /* NOCACHE should always eject a negative cached object */ | |
1302 | if (EBIT_TEST(e->flag, ENTRY_NEGCACHED)) | |
1303 | storeRelease(e); | |
1304 | /* NOCACHE+IMS should not eject a valid object */ | |
1305 | else if (EBIT_TEST(r->flags, REQ_IMS)) | |
1306 | (void) 0; | |
1307 | /* Request-Range should not eject a valid object */ | |
1308 | else if (EBIT_TEST(r->flags, REQ_RANGE)) | |
1309 | (void) 0; | |
1310 | else | |
1311 | storeRelease(e); | |
1312 | ipcacheReleaseInvalid(r->host); | |
1313 | http->entry = NULL; | |
ee1679df | 1314 | return LOG_TCP_CLIENT_REFRESH_MISS; |
50ddd7a4 | 1315 | } else if (checkNegativeHit(e)) { |
1316 | return LOG_TCP_NEGATIVE_HIT; | |
1317 | } else if (refreshCheck(e, r, 0)) { | |
1318 | /* The object is in the cache, but it needs to be validated. Use | |
1319 | * LOG_TCP_REFRESH_MISS for the time being, maybe change it to | |
1b02b5be | 1320 | * _HIT later in clientHandleIMSReply() */ |
50ddd7a4 | 1321 | if (r->protocol == PROTO_HTTP) |
1322 | return LOG_TCP_REFRESH_MISS; | |
1323 | else | |
1324 | return LOG_TCP_MISS; /* XXX zoinks */ | |
1325 | } else if (EBIT_TEST(r->flags, REQ_IMS)) { | |
1326 | /* User-initiated IMS request for something we think is valid */ | |
1327 | return LOG_TCP_IMS_MISS; | |
1328 | } else if (e->mem_status == IN_MEMORY) { | |
1329 | return LOG_TCP_MEM_HIT; | |
1330 | } else { | |
1331 | return LOG_TCP_HIT; | |
1332 | } | |
1333 | } | |
1334 | ||
4c323c5f | 1335 | static void |
fb63215a | 1336 | clientProcessRequest(clientHttpRequest * http) |
7a2f978b | 1337 | { |
23d92c64 | 1338 | char *url = http->uri; |
7a2f978b | 1339 | StoreEntry *entry = NULL; |
50ddd7a4 | 1340 | request_t *r = http->request; |
fb63215a | 1341 | int fd = http->conn->fd; |
1bea1d83 | 1342 | HttpReply *rep; |
93f9abd0 | 1343 | debug(33, 4) ("clientProcessRequest: %s '%s'\n", |
50ddd7a4 | 1344 | RequestMethodStr[r->method], |
7a2f978b | 1345 | url); |
fb63215a | 1346 | if (r->method == METHOD_CONNECT) { |
7a2f978b | 1347 | http->log_type = LOG_TCP_MISS; |
ea0efb98 | 1348 | sslStart(fd, url, r, &http->out.size); |
1349 | return; | |
fb63215a | 1350 | } else if (r->method == METHOD_PURGE) { |
ea0efb98 | 1351 | clientPurgeRequest(http); |
1352 | return; | |
fb63215a | 1353 | } else if (r->method == METHOD_TRACE) { |
50ddd7a4 | 1354 | if (r->max_forwards == 0) { |
b17b22eb | 1355 | http->entry = clientCreateStoreEntry(http, r->method, 0); |
1356 | storeReleaseRequest(http->entry); | |
1357 | storeBuffer(http->entry); | |
1bea1d83 | 1358 | rep = httpReplyCreate(); |
31be8b80 | 1359 | httpReplySetHeaders(rep, 1.0, HTTP_OK, NULL, "text/plain", |
1360 | r->headers_sz, 0, squid_curtime); | |
1bea1d83 | 1361 | httpReplySwapOut(rep, http->entry); |
1362 | httpReplyDestroy(rep); | |
b17b22eb | 1363 | storeAppend(http->entry, r->headers, r->headers_sz); |
1364 | storeComplete(http->entry); | |
7a2f978b | 1365 | return; |
1366 | } | |
1367 | /* yes, continue */ | |
6addbd81 | 1368 | http->log_type = LOG_TCP_MISS; |
efb9218c | 1369 | } else if (pumpMethod(r->method)) { |
fb63215a | 1370 | http->log_type = LOG_TCP_MISS; |
31be8b80 | 1371 | /* XXX oof, POST can be cached! */ |
54220df8 | 1372 | pumpInit(fd, r, http->uri); |
31be8b80 | 1373 | } else { |
efb9218c | 1374 | http->log_type = clientProcessRequest2(http); |
7a2f978b | 1375 | } |
93f9abd0 | 1376 | debug(33, 4) ("clientProcessRequest: %s for '%s'\n", |
7a2f978b | 1377 | log_tags[http->log_type], |
23d92c64 | 1378 | http->uri); |
50ddd7a4 | 1379 | if ((entry = http->entry) != NULL) { |
7a2f978b | 1380 | storeLockObject(entry); |
23d92c64 | 1381 | storeCreateMemObject(entry, http->uri, http->log_uri); |
7a2f978b | 1382 | storeClientListAdd(entry, http); |
1383 | } | |
7a2f978b | 1384 | http->out.offset = 0; |
038eb4ed | 1385 | /* "pure" hit? (will not contact other servers) */ |
7a2f978b | 1386 | switch (http->log_type) { |
1387 | case LOG_TCP_HIT: | |
1388 | case LOG_TCP_NEGATIVE_HIT: | |
1389 | case LOG_TCP_MEM_HIT: | |
12784378 | 1390 | case LOG_TCP_IMS_HIT: |
7a2f978b | 1391 | entry->refcount++; /* HIT CASE */ |
0e473d70 | 1392 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 1393 | debug(33, 0) ("clientProcessRequest: entry->swap_status == STORE_ABORTED\n"); |
7a2f978b | 1394 | storeClientCopy(entry, |
1395 | http->out.offset, | |
1396 | http->out.offset, | |
1397 | SM_PAGE_SIZE, | |
7021844c | 1398 | memAllocate(MEM_4K_BUF), |
7a2f978b | 1399 | clientCacheHit, |
1400 | http); | |
038eb4ed | 1401 | return; |
1402 | default: | |
7a2f978b | 1403 | break; |
038eb4ed | 1404 | } |
1405 | /* ok, it is a miss or a "dirty" hit (will contact other servers) */ | |
12784378 | 1406 | /* note: bug: LOG_TCP_IMS_MISS may result in a "pure" hit @?@ */ |
038eb4ed | 1407 | /* are we allowed to contact other servers? */ |
4e41e277 | 1408 | if (EBIT_TEST(r->flags, REQ_CC_ONLY_IF_CACHED)) { |
1a92a1e2 | 1409 | /* future interface: if (r->cache_control && EBIT_TEST(r->cache_control->mask, CC_ONLY_IF_CACHED)) { */ |
038eb4ed | 1410 | /* nope, bailing out */ |
1411 | clientProcessOnlyIfCachedMiss(http); | |
1412 | return; | |
1413 | } | |
1414 | switch (http->log_type) { | |
7a2f978b | 1415 | case LOG_TCP_IMS_MISS: |
0e473d70 | 1416 | if (entry->store_status == STORE_ABORTED) |
6cf028ab | 1417 | debug(33, 0) ("clientProcessRequest 2: entry->swap_status == STORE_ABORTED\n"); |
7a2f978b | 1418 | storeClientCopy(entry, |
1419 | http->out.offset, | |
1420 | http->out.offset, | |
1421 | SM_PAGE_SIZE, | |
7021844c | 1422 | memAllocate(MEM_4K_BUF), |
1b02b5be | 1423 | clientGetHeadersForIMS, |
7a2f978b | 1424 | http); |
1425 | break; | |
1426 | case LOG_TCP_REFRESH_MISS: | |
fb63215a | 1427 | clientProcessExpired(http); |
7a2f978b | 1428 | break; |
1429 | default: | |
fb63215a | 1430 | clientProcessMiss(http); |
7a2f978b | 1431 | break; |
1432 | } | |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | * Prepare to fetch the object as it's a cache miss of some kind. | |
1437 | */ | |
1438 | static void | |
fb63215a | 1439 | clientProcessMiss(clientHttpRequest * http) |
7a2f978b | 1440 | { |
23d92c64 | 1441 | char *url = http->uri; |
f44af445 | 1442 | request_t *r = http->request; |
1443 | char *request_hdr = r->headers; | |
7a2f978b | 1444 | aclCheck_t ch; |
1445 | int answer; | |
1446 | ErrorState *err = NULL; | |
93f9abd0 | 1447 | debug(33, 4) ("clientProcessMiss: '%s %s'\n", |
f44af445 | 1448 | RequestMethodStr[r->method], url); |
93f9abd0 | 1449 | debug(33, 10) ("clientProcessMiss: request_hdr:\n%s\n", request_hdr); |
79e0dc20 | 1450 | /* |
1451 | * We might have a left-over StoreEntry from a failed cache hit | |
1452 | * or IMS request. | |
1453 | */ | |
1454 | if (http->entry) { | |
12784378 | 1455 | if (EBIT_TEST(http->entry->flag, ENTRY_SPECIAL)) |
1456 | debug(33, 0) ("clientProcessMiss: miss on a special object (%s).\n", url); | |
79e0dc20 | 1457 | storeUnregister(http->entry, http); |
1458 | storeUnlockObject(http->entry); | |
1459 | http->entry = NULL; | |
1460 | } | |
1461 | /* | |
1462 | * Check if this host is allowed to fetch MISSES from us (miss_access) | |
1463 | */ | |
7a2f978b | 1464 | memset(&ch, '\0', sizeof(aclCheck_t)); |
1465 | ch.src_addr = http->conn->peer.sin_addr; | |
f44af445 | 1466 | ch.request = r; |
7a2f978b | 1467 | answer = aclCheckFast(Config.accessList.miss, &ch); |
4162ee3b | 1468 | if (answer == 0 || http->internal) { |
7a2f978b | 1469 | http->al.http.code = HTTP_FORBIDDEN; |
bdb3c273 | 1470 | err = errorCon(ERR_FORWARDING_DENIED, HTTP_FORBIDDEN); |
f44af445 | 1471 | err->request = requestLink(r); |
7a2f978b | 1472 | err->src_addr = http->conn->peer.sin_addr; |
f44af445 | 1473 | http->entry = clientCreateStoreEntry(http, r->method, 0); |
79e0dc20 | 1474 | errorAppendEntry(http->entry, err); |
7a2f978b | 1475 | return; |
1476 | } | |
79e0dc20 | 1477 | assert(http->out.offset == 0); |
f44af445 | 1478 | http->entry = clientCreateStoreEntry(http, r->method, r->flags); |
79e0dc20 | 1479 | http->entry->mem_obj->fd = http->conn->fd; |
1480 | http->entry->refcount++; | |
f44af445 | 1481 | protoDispatch(http->conn->fd, http->entry, r); |
7a2f978b | 1482 | } |
1483 | ||
1484 | /* | |
1485 | * parseHttpRequest() | |
1486 | * | |
1487 | * Returns | |
1488 | * NULL on error or incomplete request | |
1489 | * a clientHttpRequest structure on success | |
1490 | */ | |
1491 | static clientHttpRequest * | |
1492 | parseHttpRequest(ConnStateData * conn, method_t * method_p, int *status, | |
1493 | char **headers_p, size_t * headers_sz_p) | |
1494 | { | |
1495 | char *inbuf = NULL; | |
1496 | char *mstr = NULL; | |
1497 | char *url = NULL; | |
1498 | char *req_hdr = NULL; | |
7a2f978b | 1499 | float http_ver; |
1500 | char *token = NULL; | |
1501 | char *t = NULL; | |
2334c194 | 1502 | char *end; |
7a2f978b | 1503 | int free_request = 0; |
1504 | size_t header_sz; /* size of headers, not including first line */ | |
1505 | size_t req_sz; /* size of whole request */ | |
1506 | size_t url_sz; | |
1507 | method_t method; | |
1508 | clientHttpRequest *http = NULL; | |
1509 | ||
1510 | /* Make sure a complete line has been received */ | |
1511 | if (strchr(conn->in.buf, '\n') == NULL) { | |
93f9abd0 | 1512 | debug(33, 5) ("Incomplete request line, waiting for more data\n"); |
7a2f978b | 1513 | *status = 0; |
1514 | return NULL; | |
1515 | } | |
1516 | /* Use xmalloc/xmemcpy instead of xstrdup because inbuf might | |
1517 | * contain NULL bytes; especially for POST data */ | |
1518 | inbuf = xmalloc(conn->in.offset + 1); | |
1519 | xmemcpy(inbuf, conn->in.buf, conn->in.offset); | |
1520 | *(inbuf + conn->in.offset) = '\0'; | |
1521 | ||
1522 | /* Look for request method */ | |
1523 | if ((mstr = strtok(inbuf, "\t ")) == NULL) { | |
93f9abd0 | 1524 | debug(33, 1) ("parseHttpRequest: Can't get request method\n"); |
3775d53c | 1525 | http = xcalloc(1, sizeof(clientHttpRequest)); |
3f6c0fb2 | 1526 | cbdataAdd(http, MEM_NONE); |
3775d53c | 1527 | http->conn = conn; |
1528 | http->start = current_time; | |
1529 | http->req_sz = conn->in.offset; | |
23d92c64 | 1530 | http->uri = xstrdup("error:invalid-request-method"); |
1531 | http->log_uri = xstrdup("error:invalid-request-method"); | |
3775d53c | 1532 | *headers_sz_p = conn->in.offset; |
1533 | *headers_p = inbuf; | |
1534 | *method_p = METHOD_NONE; | |
7a2f978b | 1535 | *status = -1; |
3775d53c | 1536 | return http; |
7a2f978b | 1537 | } |
1538 | method = urlParseMethod(mstr); | |
1539 | if (method == METHOD_NONE) { | |
93f9abd0 | 1540 | debug(33, 1) ("parseHttpRequest: Unsupported method '%s'\n", mstr); |
3775d53c | 1541 | http = xcalloc(1, sizeof(clientHttpRequest)); |
3f6c0fb2 | 1542 | cbdataAdd(http, MEM_NONE); |
3775d53c | 1543 | http->conn = conn; |
1544 | http->start = current_time; | |
1545 | http->req_sz = conn->in.offset; | |
23d92c64 | 1546 | http->uri = xstrdup("error:unsupported-request-method"); |
1547 | http->log_uri = xstrdup("error:unsupported-request-method"); | |
3775d53c | 1548 | *headers_sz_p = conn->in.offset; |
1549 | *headers_p = inbuf; | |
1550 | *method_p = METHOD_NONE; | |
7a2f978b | 1551 | *status = -1; |
3775d53c | 1552 | return http; |
7a2f978b | 1553 | } |
93f9abd0 | 1554 | debug(33, 5) ("parseHttpRequest: Method is '%s'\n", mstr); |
3775d53c | 1555 | *method_p = method; |
7a2f978b | 1556 | |
1557 | /* look for URL */ | |
1558 | if ((url = strtok(NULL, "\r\n\t ")) == NULL) { | |
93f9abd0 | 1559 | debug(33, 1) ("parseHttpRequest: Missing URL\n"); |
3775d53c | 1560 | http = xcalloc(1, sizeof(clientHttpRequest)); |
3f6c0fb2 | 1561 | cbdataAdd(http, MEM_NONE); |
3775d53c | 1562 | http->conn = conn; |
1563 | http->start = current_time; | |
1564 | http->req_sz = conn->in.offset; | |
23d92c64 | 1565 | http->uri = xstrdup("error:missing-url"); |
1566 | http->log_uri = xstrdup("error:missing-url"); | |
3775d53c | 1567 | *headers_sz_p = conn->in.offset; |
1568 | *headers_p = inbuf; | |
7a2f978b | 1569 | *status = -1; |
3775d53c | 1570 | return http; |
7a2f978b | 1571 | } |
93f9abd0 | 1572 | debug(33, 5) ("parseHttpRequest: Request is '%s'\n", url); |
7a2f978b | 1573 | |
1574 | token = strtok(NULL, null_string); | |
1575 | for (t = token; t && *t && *t != '\n' && *t != '\r'; t++); | |
46c7dbf0 | 1576 | if (t == NULL || *t == '\0' || t == token || strncmp(token, "HTTP/", 5)) { |
93f9abd0 | 1577 | debug(33, 3) ("parseHttpRequest: Missing HTTP identifier\n"); |
7518fce5 | 1578 | #if STRICT_HTTP_PARSER |
3775d53c | 1579 | http = xcalloc(1, sizeof(clientHttpRequest)); |
3f6c0fb2 | 1580 | cbdataAdd(http, MEM_NONE); |
3775d53c | 1581 | http->conn = conn; |
1582 | http->start = current_time; | |
1583 | http->req_sz = conn->in.offset; | |
23d92c64 | 1584 | http->uri = xstrdup("error:missing-http-ident"); |
1585 | http->log_uri = xstrdup("error:missing-http-ident"); | |
3775d53c | 1586 | *headers_sz_p = conn->in.offset; |
1587 | *headers_p = inbuf; | |
7a2f978b | 1588 | *status = -1; |
3775d53c | 1589 | return http; |
7518fce5 | 1590 | #else |
1afe05c5 | 1591 | http_ver = (float) 0.9; /* wild guess */ |
7518fce5 | 1592 | #endif |
1593 | } else | |
1594 | http_ver = (float) atof(token + 5); | |
7a2f978b | 1595 | |
1596 | /* Check if headers are received */ | |
754b9ce9 | 1597 | req_hdr = t; |
8d9810cd | 1598 | header_sz = headersEnd(req_hdr, conn->in.offset - (req_hdr - inbuf)); |
2334c194 | 1599 | if (0 == header_sz) { |
1a92a1e2 | 1600 | debug(33, 3) ("parseHttpRequest: header_sz == 0\n"); |
7a2f978b | 1601 | xfree(inbuf); |
1602 | *status = 0; | |
1603 | return NULL; | |
1604 | } | |
754b9ce9 | 1605 | /* |
1606 | * Skip whitespace at the end of the frist line, up to the | |
1607 | * first newline. | |
1608 | */ | |
1609 | while (isspace(*req_hdr)) { | |
1610 | header_sz--; | |
1611 | if (*(req_hdr++) == '\n') | |
1612 | break; | |
1613 | } | |
1614 | assert(header_sz > 0); | |
1615 | debug(33, 3) ("parseHttpRequest: req_hdr = {%s}\n", req_hdr); | |
2334c194 | 1616 | end = req_hdr + header_sz; |
04990e2d | 1617 | debug(33, 3) ("parseHttpRequest: end = {%s}\n", end); |
2334c194 | 1618 | |
c24fca87 | 1619 | if (end <= req_hdr) { |
1620 | /* Invalid request */ | |
93f9abd0 | 1621 | debug(33, 3) ("parseHttpRequest: No request headers?\n"); |
c24fca87 | 1622 | http = xcalloc(1, sizeof(clientHttpRequest)); |
3f6c0fb2 | 1623 | cbdataAdd(http, MEM_NONE); |
c24fca87 | 1624 | http->conn = conn; |
1625 | http->start = current_time; | |
1626 | http->req_sz = conn->in.offset; | |
1627 | http->uri = xstrdup("error:no-request-headers"); | |
1628 | http->log_uri = xstrdup("error:no-request-headers"); | |
1629 | *headers_sz_p = conn->in.offset; | |
1630 | *headers_p = inbuf; | |
1631 | *status = -1; | |
1632 | return http; | |
1633 | } | |
7a2f978b | 1634 | req_sz = end - inbuf; |
04990e2d | 1635 | debug(33, 3) ("parseHttpRequest: req_sz = %d\n", (int) req_sz); |
1636 | assert(req_sz <= conn->in.offset); | |
7a2f978b | 1637 | |
1638 | /* Ok, all headers are received */ | |
1639 | http = xcalloc(1, sizeof(clientHttpRequest)); | |
3f6c0fb2 | 1640 | cbdataAdd(http, MEM_NONE); |
7a2f978b | 1641 | http->http_ver = http_ver; |
1642 | http->conn = conn; | |
1643 | http->start = current_time; | |
1644 | http->req_sz = req_sz; | |
1645 | *headers_sz_p = header_sz; | |
1646 | *headers_p = xmalloc(header_sz + 1); | |
1647 | xmemcpy(*headers_p, req_hdr, header_sz); | |
1648 | *(*headers_p + header_sz) = '\0'; | |
1649 | ||
93f9abd0 | 1650 | debug(33, 5) ("parseHttpRequest: Request Header is\n%s\n", *headers_p); |
23d92c64 | 1651 | /* Assign http->uri */ |
7a2f978b | 1652 | if ((t = strchr(url, '\n'))) /* remove NL */ |
1653 | *t = '\0'; | |
1654 | if ((t = strchr(url, '\r'))) /* remove CR */ | |
1655 | *t = '\0'; | |
1656 | if ((t = strchr(url, '#'))) /* remove HTML anchors */ | |
1657 | *t = '\0'; | |
1658 | ||
4162ee3b | 1659 | /* handle internal objects */ |
1660 | if (*url == '/' && strncmp(url, "/squid-internal/", 16) == 0) { | |
1661 | /* prepend our name & port */ | |
1662 | url_sz = 7 + strlen(getMyHostname()) + 6 + strlen(url) + 1; | |
1663 | http->uri = xcalloc(url_sz, 1); | |
1664 | snprintf(http->uri, url_sz, "http://%s:%d%s", | |
1665 | getMyHostname(), Config.Port.http->i, url); | |
1666 | http->internal = 1; | |
1667 | } | |
7a2f978b | 1668 | /* see if we running in Config2.Accel.on, if so got to convert it to URL */ |
4162ee3b | 1669 | else if (Config2.Accel.on && *url == '/') { |
7a2f978b | 1670 | /* prepend the accel prefix */ |
dbfed404 | 1671 | if (opt_accel_uses_host && (t = mime_get_header(req_hdr, "Host"))) { |
7a2f978b | 1672 | /* If a Host: header was specified, use it to build the URL |
1673 | * instead of the one in the Config file. */ | |
1674 | /* | |
1675 | * XXX Use of the Host: header here opens a potential | |
1676 | * security hole. There are no checks that the Host: value | |
1677 | * corresponds to one of your servers. It might, for example, | |
1678 | * refer to www.playboy.com. The 'dst' and/or 'dst_domain' ACL | |
1679 | * types should be used to prevent httpd-accelerators | |
1680 | * handling requests for non-local servers */ | |
1681 | strtok(t, " :/;@"); | |
12fc602c | 1682 | url_sz = strlen(url) + 32 + Config.appendDomainLen + |
1683 | strlen(t); | |
23d92c64 | 1684 | http->uri = xcalloc(url_sz, 1); |
1685 | snprintf(http->uri, url_sz, "http://%s:%d%s", | |
7a2f978b | 1686 | t, (int) Config.Accel.port, url); |
dbfed404 | 1687 | } else if (vhost_mode) { |
1688 | /* Put the local socket IP address as the hostname */ | |
1689 | url_sz = strlen(url) + 32 + Config.appendDomainLen; | |
1690 | http->uri = xcalloc(url_sz, 1); | |
1691 | snprintf(http->uri, url_sz, "http://%s:%d%s", | |
1692 | inet_ntoa(http->conn->me.sin_addr), | |
1693 | (int) Config.Accel.port, | |
1694 | url); | |
93f9abd0 | 1695 | debug(33, 5) ("VHOST REWRITE: '%s'\n", http->uri); |
7a2f978b | 1696 | } else { |
1697 | url_sz = strlen(Config2.Accel.prefix) + strlen(url) + | |
1698 | Config.appendDomainLen + 1; | |
23d92c64 | 1699 | http->uri = xcalloc(url_sz, 1); |
1700 | snprintf(http->uri, url_sz, "%s%s", Config2.Accel.prefix, url); | |
7a2f978b | 1701 | } |
1702 | http->accel = 1; | |
1703 | } else { | |
1704 | /* URL may be rewritten later, so make extra room */ | |
1705 | url_sz = strlen(url) + Config.appendDomainLen + 5; | |
23d92c64 | 1706 | http->uri = xcalloc(url_sz, 1); |
1707 | strcpy(http->uri, url); | |
7a2f978b | 1708 | http->accel = 0; |
1709 | } | |
23d92c64 | 1710 | http->log_uri = xstrdup(http->uri); |
93f9abd0 | 1711 | debug(33, 5) ("parseHttpRequest: Complete request received\n"); |
7a2f978b | 1712 | if (free_request) |
1713 | safe_free(url); | |
1714 | xfree(inbuf); | |
7a2f978b | 1715 | *status = 1; |
1716 | return http; | |
1717 | } | |
1718 | ||
1719 | static int | |
79d39a72 | 1720 | clientReadDefer(int fdnotused, void *data) |
7a2f978b | 1721 | { |
1722 | ConnStateData *conn = data; | |
1723 | return conn->defer.until > squid_curtime; | |
1724 | } | |
1725 | ||
1726 | static void | |
1727 | clientReadRequest(int fd, void *data) | |
1728 | { | |
1729 | ConnStateData *conn = data; | |
1730 | int parser_return_code = 0; | |
1731 | int k; | |
1732 | request_t *request = NULL; | |
7a2f978b | 1733 | int size; |
7a2f978b | 1734 | method_t method; |
1735 | clientHttpRequest *http = NULL; | |
1736 | clientHttpRequest **H = NULL; | |
1737 | char *headers; | |
1738 | size_t headers_sz; | |
1739 | ErrorState *err = NULL; | |
1740 | fde *F = &fd_table[fd]; | |
44db45e8 | 1741 | int len = conn->in.size - conn->in.offset - 1; |
93f9abd0 | 1742 | debug(33, 4) ("clientReadRequest: FD %d: reading request...\n", fd); |
7a2f978b | 1743 | size = read(fd, conn->in.buf + conn->in.offset, len); |
1744 | fd_bytes(fd, size, FD_READ); | |
44db45e8 | 1745 | /* |
1746 | * Don't reset the timeout value here. The timeout value will be | |
1747 | * set to Config.Timeout.request by httpAccept() and | |
1748 | * clientWriteComplete(), and should apply to the request as a | |
1749 | * whole, not individual read() calls. Plus, it breaks our | |
1750 | * lame half-close detection | |
1751 | */ | |
1752 | commSetSelect(fd, COMM_SELECT_READ, clientReadRequest, conn, 0); | |
7a2f978b | 1753 | if (size == 0) { |
1754 | if (conn->chr == NULL) { | |
1755 | /* no current or pending requests */ | |
1756 | comm_close(fd); | |
1757 | return; | |
1758 | } | |
1759 | /* It might be half-closed, we can't tell */ | |
93f9abd0 | 1760 | debug(33, 5) ("clientReadRequest: FD %d closed?\n", fd); |
79a15e0a | 1761 | EBIT_SET(F->flags, FD_SOCKET_EOF); |
7a2f978b | 1762 | conn->defer.until = squid_curtime + 1; |
1763 | conn->defer.n++; | |
44db45e8 | 1764 | fd_note(fd, "half-closed"); |
7a2f978b | 1765 | return; |
1766 | } else if (size < 0) { | |
6d3caf23 | 1767 | if (!ignoreErrno(errno)) { |
7a2f978b | 1768 | debug(50, 2) ("clientReadRequest: FD %d: %s\n", fd, xstrerror()); |
1769 | comm_close(fd); | |
ebf4efff | 1770 | return; |
47130615 | 1771 | } else if (conn->in.offset == 0) { |
5f6ac48b | 1772 | debug(50, 2) ("clientReadRequest: FD %d: no data to process\n", fd); |
ebf4efff | 1773 | return; |
7a2f978b | 1774 | } |
ebf4efff | 1775 | /* Continue to process previously read data */ |
47130615 | 1776 | size = 0; |
7a2f978b | 1777 | } |
1778 | conn->in.offset += size; | |
1779 | conn->in.buf[conn->in.offset] = '\0'; /* Terminate the string */ | |
7a2f978b | 1780 | while (conn->in.offset > 0) { |
ebf4efff | 1781 | int nrequests; |
1782 | /* Limit the number of concurrent requests to 2 */ | |
1783 | for (H = &conn->chr, nrequests = 0; *H; H = &(*H)->next, nrequests++); | |
1784 | if (nrequests >= 2) { | |
93f9abd0 | 1785 | debug(33, 2) ("clientReadRequest: FD %d max concurrent requests reached\n", fd); |
1786 | debug(33, 5) ("clientReadRequest: FD %d defering new request until one is done\n", fd); | |
47130615 | 1787 | conn->defer.until = squid_curtime + 100; /* Reset when a request is complete */ |
ebf4efff | 1788 | break; |
1789 | } | |
1790 | /* Process request */ | |
7a2f978b | 1791 | http = parseHttpRequest(conn, |
1792 | &method, | |
1793 | &parser_return_code, | |
1794 | &headers, | |
1795 | &headers_sz); | |
1796 | if (http) { | |
1797 | assert(http->req_sz > 0); | |
1798 | conn->in.offset -= http->req_sz; | |
1799 | assert(conn->in.offset >= 0); | |
6fa92aa2 | 1800 | /* |
1801 | * If we read past the end of this request, move the remaining | |
1802 | * data to the beginning | |
1803 | */ | |
1804 | if (conn->in.offset > 0) | |
dbfed404 | 1805 | xmemmove(conn->in.buf, conn->in.buf + http->req_sz, conn->in.offset); |
ebf4efff | 1806 | /* add to the client request queue */ |
7a2f978b | 1807 | for (H = &conn->chr; *H; H = &(*H)->next); |
1808 | *H = http; | |
1809 | conn->nrequests++; | |
1810 | commSetTimeout(fd, Config.Timeout.lifetime, NULL, NULL); | |
3775d53c | 1811 | if (parser_return_code < 0) { |
93f9abd0 | 1812 | debug(33, 1) ("clientReadRequest: FD %d Invalid Request\n", fd); |
3775d53c | 1813 | err = errorCon(ERR_INVALID_REQ, HTTP_BAD_REQUEST); |
1814 | err->request_hdrs = xstrdup(conn->in.buf); | |
1815 | http->entry = clientCreateStoreEntry(http, method, 0); | |
1816 | errorAppendEntry(http->entry, err); | |
1817 | break; | |
1818 | } | |
23d92c64 | 1819 | if ((request = urlParse(method, http->uri)) == NULL) { |
93f9abd0 | 1820 | debug(33, 5) ("Invalid URL: %s\n", http->uri); |
7a2f978b | 1821 | err = errorCon(ERR_INVALID_URL, HTTP_BAD_REQUEST); |
1822 | err->src_addr = conn->peer.sin_addr; | |
23d92c64 | 1823 | err->url = xstrdup(http->uri); |
7a2f978b | 1824 | http->al.http.code = err->http_status; |
f44af445 | 1825 | http->entry = clientCreateStoreEntry(http, method, 0); |
79e0dc20 | 1826 | errorAppendEntry(http->entry, err); |
7a2f978b | 1827 | safe_free(headers); |
1828 | break; | |
1829 | } | |
23d92c64 | 1830 | safe_free(http->log_uri); |
1831 | http->log_uri = xstrdup(urlCanonicalClean(request)); | |
7a2f978b | 1832 | request->client_addr = conn->peer.sin_addr; |
1833 | request->http_ver = http->http_ver; | |
1834 | request->headers = headers; | |
1835 | request->headers_sz = headers_sz; | |
1836 | if (!urlCheckRequest(request)) { | |
1837 | err = errorCon(ERR_UNSUP_REQ, HTTP_NOT_IMPLEMENTED); | |
1838 | err->src_addr = conn->peer.sin_addr; | |
7a2f978b | 1839 | err->request = requestLink(request); |
1840 | http->al.http.code = err->http_status; | |
f44af445 | 1841 | http->entry = clientCreateStoreEntry(http, request->method, 0); |
79e0dc20 | 1842 | errorAppendEntry(http->entry, err); |
3775d53c | 1843 | break; |
7a2f978b | 1844 | } |
31be8b80 | 1845 | if (0 == clientCheckContentLength(request)) { |
1846 | err = errorCon(ERR_INVALID_REQ, HTTP_LENGTH_REQUIRED); | |
1847 | err->src_addr = conn->peer.sin_addr; | |
1848 | err->request = requestLink(request); | |
1849 | http->al.http.code = err->http_status; | |
1850 | http->entry = clientCreateStoreEntry(http, request->method, 0); | |
1851 | errorAppendEntry(http->entry, err); | |
1852 | break; | |
1853 | } | |
7a2f978b | 1854 | http->request = requestLink(request); |
cf26e54c | 1855 | clientAccessCheck(http); |
3775d53c | 1856 | /* |
1857 | * break here for NON-GET because most likely there is a | |
7a2f978b | 1858 | * reqeust body following and we don't want to parse it |
3775d53c | 1859 | * as though it was new request |
1860 | */ | |
7a2f978b | 1861 | if (request->method != METHOD_GET) { |
1862 | if (conn->in.offset) { | |
1863 | request->body_sz = conn->in.offset; | |
1864 | request->body = xmalloc(request->body_sz); | |
1865 | xmemcpy(request->body, conn->in.buf, request->body_sz); | |
1866 | conn->in.offset = 0; | |
1867 | } | |
1868 | break; | |
1869 | } | |
7a2f978b | 1870 | continue; /* while offset > 0 */ |
1871 | } else if (parser_return_code == 0) { | |
1872 | /* | |
1873 | * Partial request received; reschedule until parseHttpRequest() | |
1874 | * is happy with the input | |
1875 | */ | |
1876 | k = conn->in.size - 1 - conn->in.offset; | |
1877 | if (k == 0) { | |
1878 | if (conn->in.offset >= Config.maxRequestSize) { | |
1879 | /* The request is too large to handle */ | |
93f9abd0 | 1880 | debug(33, 0) ("Request won't fit in buffer.\n"); |
1881 | debug(33, 0) ("Config 'request_size'= %d bytes.\n", | |
7a2f978b | 1882 | Config.maxRequestSize); |
93f9abd0 | 1883 | debug(33, 0) ("This request = %d bytes.\n", |
5f6ac48b | 1884 | (int) conn->in.offset); |
7a2f978b | 1885 | err = errorCon(ERR_INVALID_REQ, HTTP_REQUEST_ENTITY_TOO_LARGE); |
f44af445 | 1886 | http->entry = clientCreateStoreEntry(http, request->method, 0); |
79e0dc20 | 1887 | errorAppendEntry(http->entry, err); |
7a2f978b | 1888 | return; |
1889 | } | |
1890 | /* Grow the request memory area to accomodate for a large request */ | |
1891 | conn->in.size += REQUEST_BUF_SIZE; | |
1892 | conn->in.buf = xrealloc(conn->in.buf, conn->in.size); | |
59c4d35b | 1893 | /* XXX account conn->in.buf */ |
93f9abd0 | 1894 | debug(33, 2) ("Handling a large request, offset=%d inbufsize=%d\n", |
5f6ac48b | 1895 | (int) conn->in.offset, conn->in.size); |
7a2f978b | 1896 | k = conn->in.size - 1 - conn->in.offset; |
1897 | } | |
7a2f978b | 1898 | break; |
7a2f978b | 1899 | } |
1900 | } | |
1901 | } | |
1902 | ||
1903 | /* general lifetime handler for HTTP requests */ | |
1904 | static void | |
1905 | requestTimeout(int fd, void *data) | |
1906 | { | |
1907 | ConnStateData *conn = data; | |
1908 | ErrorState *err; | |
93f9abd0 | 1909 | debug(33, 2) ("requestTimeout: FD %d: lifetime is expired.\n", fd); |
7a2f978b | 1910 | if (fd_table[fd].rwstate) { |
79e0dc20 | 1911 | /* |
1912 | * Some data has been sent to the client, just close the FD | |
1913 | */ | |
7a2f978b | 1914 | comm_close(fd); |
1915 | } else if (conn->nrequests) { | |
79e0dc20 | 1916 | /* |
1917 | * assume its a persistent connection; just close it | |
1918 | */ | |
7a2f978b | 1919 | comm_close(fd); |
1920 | } else { | |
79e0dc20 | 1921 | /* |
1922 | * Generate an error | |
1923 | */ | |
7a2f978b | 1924 | err = errorCon(ERR_LIFETIME_EXP, HTTP_REQUEST_TIMEOUT); |
7a2f978b | 1925 | err->url = xstrdup("N/A"); |
79e0dc20 | 1926 | /* |
1927 | * Normally we shouldn't call errorSend() in client_side.c, but | |
1928 | * it should be okay in this case. Presumably if we get here | |
1929 | * this is the first request for the connection, and no data | |
1930 | * has been written yet | |
1931 | */ | |
1932 | assert(conn->chr == NULL); | |
7a2f978b | 1933 | errorSend(fd, err); |
79e0dc20 | 1934 | /* |
1935 | * if we don't close() here, we still need a timeout handler! | |
1936 | */ | |
7a2f978b | 1937 | commSetTimeout(fd, 30, requestTimeout, conn); |
1938 | } | |
1939 | } | |
1940 | ||
1941 | int | |
79d39a72 | 1942 | httpAcceptDefer(int fdnotused, void *notused) |
7a2f978b | 1943 | { |
22f5d1ca | 1944 | return fdNFree() < RESERVED_FD; |
7a2f978b | 1945 | } |
1946 | ||
bf8e5903 | 1947 | /* Handle a new connection on HTTP socket. */ |
7a2f978b | 1948 | void |
1949 | httpAccept(int sock, void *notused) | |
1950 | { | |
1951 | int fd = -1; | |
1952 | ConnStateData *connState = NULL; | |
1953 | struct sockaddr_in peer; | |
1954 | struct sockaddr_in me; | |
1955 | memset(&peer, '\0', sizeof(struct sockaddr_in)); | |
1956 | memset(&me, '\0', sizeof(struct sockaddr_in)); | |
1957 | commSetSelect(sock, COMM_SELECT_READ, httpAccept, NULL, 0); | |
1958 | if ((fd = comm_accept(sock, &peer, &me)) < 0) { | |
1959 | debug(50, 1) ("httpAccept: FD %d: accept failure: %s\n", | |
1960 | sock, xstrerror()); | |
1961 | return; | |
1962 | } | |
93f9abd0 | 1963 | debug(33, 4) ("httpAccept: FD %d: accepted\n", fd); |
7a2f978b | 1964 | connState = xcalloc(1, sizeof(ConnStateData)); |
1965 | connState->peer = peer; | |
1966 | connState->log_addr = peer.sin_addr; | |
1967 | connState->log_addr.s_addr &= Config.Addrs.client_netmask.s_addr; | |
1968 | connState->me = me; | |
1969 | connState->fd = fd; | |
1970 | connState->ident.fd = -1; | |
1971 | connState->in.size = REQUEST_BUF_SIZE; | |
1972 | connState->in.buf = xcalloc(connState->in.size, 1); | |
3f6c0fb2 | 1973 | cbdataAdd(connState, MEM_NONE); |
59c4d35b | 1974 | /* XXX account connState->in.buf */ |
7a2f978b | 1975 | comm_add_close_handler(fd, connStateFree, connState); |
1976 | if (Config.onoff.log_fqdn) | |
1977 | fqdncache_gethostbyaddr(peer.sin_addr, FQDN_LOOKUP_IF_MISS); | |
1978 | commSetTimeout(fd, Config.Timeout.request, requestTimeout, connState); | |
1979 | commSetSelect(fd, COMM_SELECT_READ, clientReadRequest, connState, 0); | |
1980 | commSetDefer(fd, clientReadDefer, connState); | |
1981 | } | |
1982 | ||
1983 | void | |
1984 | AppendUdp(icpUdpData * item) | |
1985 | { | |
1986 | item->next = NULL; | |
1987 | if (UdpQueueHead == NULL) { | |
1988 | UdpQueueHead = item; | |
1989 | UdpQueueTail = item; | |
1990 | } else if (UdpQueueTail == UdpQueueHead) { | |
1991 | UdpQueueTail = item; | |
1992 | UdpQueueHead->next = item; | |
1993 | } else { | |
1994 | UdpQueueTail->next = item; | |
1995 | UdpQueueTail = item; | |
1996 | } | |
1997 | } | |
1998 | ||
1999 | /* return 1 if the request should be aborted */ | |
2000 | static int | |
2001 | CheckQuickAbort2(const clientHttpRequest * http) | |
2002 | { | |
2003 | long curlen; | |
2004 | long minlen; | |
2005 | long expectlen; | |
2006 | ||
79a15e0a | 2007 | if (!EBIT_TEST(http->request->flags, REQ_CACHABLE)) |
7a2f978b | 2008 | return 1; |
79a15e0a | 2009 | if (EBIT_TEST(http->entry->flag, KEY_PRIVATE)) |
7a2f978b | 2010 | return 1; |
2011 | if (http->entry->mem_obj == NULL) | |
2012 | return 1; | |
038eb4ed | 2013 | expectlen = http->entry->mem_obj->reply->content_length; |
7a2f978b | 2014 | curlen = http->entry->mem_obj->inmem_hi; |
2015 | minlen = Config.quickAbort.min; | |
2016 | if (minlen < 0) | |
2017 | /* disabled */ | |
2018 | return 0; | |
2019 | if (curlen > expectlen) | |
2020 | /* bad content length */ | |
2021 | return 1; | |
2022 | if ((expectlen - curlen) < minlen) | |
2023 | /* only little more left */ | |
2024 | return 0; | |
2025 | if ((expectlen - curlen) > Config.quickAbort.max) | |
2026 | /* too much left to go */ | |
2027 | return 1; | |
2028 | if ((curlen / (expectlen / 128U)) > Config.quickAbort.pct) | |
2029 | /* past point of no return */ | |
2030 | return 0; | |
2031 | return 1; | |
2032 | } | |
2033 | ||
2034 | ||
2035 | static void | |
2036 | CheckQuickAbort(clientHttpRequest * http) | |
2037 | { | |
2038 | StoreEntry *entry = http->entry; | |
2039 | /* Note, set entry here because http->entry might get changed (for IMS | |
2040 | * requests) during the storeAbort() call */ | |
2041 | if (entry == NULL) | |
2042 | return; | |
36547bcf | 2043 | if (storePendingNClients(entry) > 0) |
7a2f978b | 2044 | return; |
2045 | if (entry->store_status != STORE_PENDING) | |
2046 | return; | |
2047 | if (CheckQuickAbort2(http) == 0) | |
2048 | return; | |
93f9abd0 | 2049 | debug(33, 3) ("CheckQuickAbort: ABORTING %s\n", storeUrl(entry)); |
7a2f978b | 2050 | storeAbort(entry, 1); |
2051 | } | |
2052 | ||
978e455f | 2053 | #define SENDING_BODY 0 |
2054 | #define SENDING_HDRSONLY 1 | |
7a2f978b | 2055 | static int |
1b02b5be | 2056 | clientCheckTransferDone(clientHttpRequest * http) |
7a2f978b | 2057 | { |
978e455f | 2058 | int sending = SENDING_BODY; |
7a2f978b | 2059 | StoreEntry *entry = http->entry; |
978e455f | 2060 | MemObject *mem; |
2061 | http_reply *reply; | |
2062 | int sendlen; | |
7a2f978b | 2063 | if (entry == NULL) |
2064 | return 0; | |
978e455f | 2065 | /* |
2066 | * Handle STORE_OK and STORE_ABORTED objects. | |
07304bf9 | 2067 | * objectLen(entry) will be set proprely. |
978e455f | 2068 | */ |
2069 | if (entry->store_status != STORE_PENDING) { | |
07304bf9 | 2070 | if (http->out.offset >= objectLen(entry)) |
7a2f978b | 2071 | return 1; |
513f05a6 | 2072 | else |
2073 | return 0; | |
2074 | } | |
978e455f | 2075 | /* |
2076 | * Now, handle STORE_PENDING objects | |
2077 | */ | |
2078 | mem = entry->mem_obj; | |
2079 | assert(mem != NULL); | |
2080 | assert(http->request != NULL); | |
2081 | reply = mem->reply; | |
2082 | if (reply->hdr_sz == 0) | |
b34ed725 | 2083 | return 0; /* haven't found end of headers yet */ |
cb69b4c7 | 2084 | else if (reply->sline.status == HTTP_OK) |
b34ed725 | 2085 | sending = SENDING_BODY; |
cb69b4c7 | 2086 | else if (reply->sline.status == HTTP_NO_CONTENT) |
b34ed725 | 2087 | sending = SENDING_HDRSONLY; |
cb69b4c7 | 2088 | else if (reply->sline.status == HTTP_NOT_MODIFIED) |
b34ed725 | 2089 | sending = SENDING_HDRSONLY; |
cb69b4c7 | 2090 | else if (reply->sline.status < HTTP_OK) |
a3c60429 | 2091 | sending = SENDING_HDRSONLY; |
978e455f | 2092 | else if (http->request->method == METHOD_HEAD) |
b34ed725 | 2093 | sending = SENDING_HDRSONLY; |
978e455f | 2094 | else |
2095 | sending = SENDING_BODY; | |
2096 | /* | |
2097 | * Figure out how much data we are supposed to send. | |
2098 | * If we are sending a body and we don't have a content-length, | |
2099 | * then we must wait for the object to become STORE_OK or | |
2100 | * STORE_ABORTED. | |
2101 | */ | |
2102 | if (sending == SENDING_HDRSONLY) | |
2103 | sendlen = reply->hdr_sz; | |
038eb4ed | 2104 | else if (reply->content_length < 0) |
978e455f | 2105 | return 0; |
2106 | else | |
038eb4ed | 2107 | sendlen = reply->content_length + reply->hdr_sz; |
978e455f | 2108 | /* |
2109 | * Now that we have the expected length, did we send it all? | |
2110 | */ | |
2111 | if (http->out.offset < sendlen) | |
2112 | return 0; | |
2113 | else | |
b34ed725 | 2114 | return 1; |
7a2f978b | 2115 | } |
2116 | ||
7a2f978b | 2117 | /* |
2118 | * This function is designed to serve a fairly specific purpose. | |
2119 | * Occasionally our vBNS-connected caches can talk to each other, but not | |
2120 | * the rest of the world. Here we try to detect frequent failures which | |
2121 | * make the cache unusable (e.g. DNS lookup and connect() failures). If | |
2122 | * the failure:success ratio goes above 1.0 then we go into "hit only" | |
2123 | * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors | |
2124 | * will only fetch HITs from us if they are using the ICP protocol. We | |
2125 | * stay in this mode for 5 minutes. | |
2126 | * | |
2127 | * Duane W., Sept 16, 1996 | |
2128 | */ | |
2129 | ||
2130 | static void | |
88aad2e5 | 2131 | checkFailureRatio(err_type etype, hier_code hcode) |
7a2f978b | 2132 | { |
88aad2e5 | 2133 | static double magic_factor = 100.0; |
7a2f978b | 2134 | double n_good; |
2135 | double n_bad; | |
2136 | if (hcode == HIER_NONE) | |
2137 | return; | |
88aad2e5 | 2138 | n_good = magic_factor / (1.0 + request_failure_ratio); |
7a2f978b | 2139 | n_bad = magic_factor - n_good; |
88aad2e5 | 2140 | switch (etype) { |
7a2f978b | 2141 | case ERR_DNS_FAIL: |
2142 | case ERR_CONNECT_FAIL: | |
2143 | case ERR_READ_ERROR: | |
2144 | n_bad++; | |
2145 | break; | |
2146 | default: | |
2147 | n_good++; | |
2148 | } | |
88aad2e5 | 2149 | request_failure_ratio = n_bad / n_good; |
7a2f978b | 2150 | if (hit_only_mode_until > squid_curtime) |
2151 | return; | |
88aad2e5 | 2152 | if (request_failure_ratio < 1.0) |
7a2f978b | 2153 | return; |
93f9abd0 | 2154 | debug(33, 0) ("Failure Ratio at %4.2f\n", request_failure_ratio); |
2155 | debug(33, 0) ("Going into hit-only-mode for %d minutes...\n", | |
7a2f978b | 2156 | FAILURE_MODE_TIME / 60); |
2157 | hit_only_mode_until = squid_curtime + FAILURE_MODE_TIME; | |
88aad2e5 | 2158 | request_failure_ratio = 0.8; /* reset to something less than 1.0 */ |
7a2f978b | 2159 | } |
15df8349 | 2160 | |
2161 | void | |
2162 | clientHttpConnectionsOpen(void) | |
2163 | { | |
2164 | ushortlist *u; | |
2165 | int fd; | |
15df8349 | 2166 | for (u = Config.Port.http; u; u = u->next) { |
8daca701 | 2167 | enter_suid(); |
2168 | fd = comm_open(SOCK_STREAM, | |
2169 | 0, | |
2170 | Config.Addrs.tcp_incoming, | |
2171 | u->i, | |
2172 | COMM_NONBLOCKING, | |
2173 | "HTTP Socket"); | |
2174 | leave_suid(); | |
2175 | if (fd < 0) | |
2176 | continue; | |
2177 | comm_listen(fd); | |
2178 | commSetSelect(fd, COMM_SELECT_READ, httpAccept, NULL, 0); | |
2179 | commSetDefer(fd, httpAcceptDefer, NULL); | |
2180 | debug(1, 1) ("Accepting HTTP connections on port %d, FD %d.\n", | |
2181 | (int) u->i, fd); | |
2182 | HttpSockets[NHttpSockets++] = fd; | |
15df8349 | 2183 | } |
2184 | if (NHttpSockets < 1) | |
8daca701 | 2185 | fatal("Cannot open HTTP Port"); |
15df8349 | 2186 | } |
c0fbae16 | 2187 | |
ab013258 | 2188 | int |
2189 | handleConnectionHeader(int flag, char *where, char *what) | |
2190 | { | |
2191 | char *t, *p, *wh; | |
2192 | int i; | |
2193 | LOCAL_ARRAY(char, mbuf, 256); | |
2194 | ||
2195 | if (flag) { /* lookup mode */ | |
2196 | if (where[0] == '\0' || what[0] == '\0') | |
2197 | return 0; | |
2198 | p = xstrdup(what); | |
2199 | t = strtok(p, ":"); | |
2200 | if (t == NULL) | |
2201 | return 0; | |
2202 | debug(20, 3) ("handleConnectionHeader: %s\n AND %s (%p)\n", where, t, p); | |
2203 | i = strstr(where, t) ? 1 : 0; | |
2204 | xfree(p); | |
2205 | return (i); | |
2206 | } | |
2207 | where[0] = '\0'; | |
2208 | wh = xstrdup(what); | |
2209 | t = strtok(wh, ","); | |
2210 | while (t != NULL) { | |
2211 | ||
2212 | #ifdef BE_PARANOID | |
2213 | static char no_conn[] = "Expires:Host:Content-length:Content-type:"; | |
2214 | ||
2215 | if (handleConnectionHeader(1, no_conn, t)) { | |
2216 | debug(1, 1) ("handleConnectionHeader: problematic header %s\n", t); | |
2217 | t = strtok(NULL, ",\n"); | |
2218 | continue; | |
2219 | } | |
2220 | #endif | |
2221 | if ((p = strchr(t, ':'))) | |
2222 | xstrncpy(mbuf, t, p - t + 1); | |
2223 | else | |
2224 | snprintf(mbuf, 256, "%s:", t); | |
2225 | strcat(where, mbuf); | |
2226 | t = strtok(NULL, ",\n"); | |
2227 | } | |
2228 | debug(20, 3) ("handleConnectionHeader: we have %s\n", where); | |
2229 | xfree(wh); | |
2230 | return 1; | |
2231 | } | |
2232 | ||
c0fbae16 | 2233 | void |
2234 | clientHttpConnectionsClose(void) | |
2235 | { | |
2236 | int i; | |
2237 | for (i = 0; i < NHttpSockets; i++) { | |
2238 | if (HttpSockets[i] >= 0) { | |
2239 | debug(1, 1) ("FD %d Closing HTTP connection\n", HttpSockets[i]); | |
2240 | comm_close(HttpSockets[i]); | |
2241 | HttpSockets[i] = -1; | |
2242 | } | |
2243 | } | |
2244 | NHttpSockets = 0; | |
2245 | } |