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4f7e9dbb | 1 | |
cb69b4c7 | 2 | /* |
ead5ed09 | 3 | * $Id: HttpHeader.cc,v 1.115 2006/05/05 20:13:04 wessels Exp $ |
cb69b4c7 | 4 | * |
123abbe1 | 5 | * DEBUG: section 55 HTTP Header |
cb69b4c7 | 6 | * AUTHOR: Alex Rousskov |
7 | * | |
2b6662ba | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 9 | * ---------------------------------------------------------- |
cb69b4c7 | 10 | * |
2b6662ba | 11 | * Squid is the result of efforts by numerous individuals from |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
cb69b4c7 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
cb69b4c7 | 34 | */ |
35 | ||
36 | #include "squid.h" | |
e6ccf245 | 37 | #include "Store.h" |
38 | #include "HttpHeader.h" | |
528b2c61 | 39 | #include "HttpHdrContRange.h" |
25b6a907 | 40 | #include "HttpHdrSc.h" |
0eb49b6d | 41 | #include "MemBuf.h" |
cb69b4c7 | 42 | |
43 | /* | |
2ac76861 | 44 | * On naming conventions: |
45 | * | |
46 | * HTTP/1.1 defines message-header as | |
47 | * | |
48 | * message-header = field-name ":" [ field-value ] CRLF | |
49 | * field-name = token | |
50 | * field-value = *( field-content | LWS ) | |
51 | * | |
52 | * HTTP/1.1 does not give a name name a group of all message-headers in a message. | |
53 | * Squid 1.1 seems to refer to that group _plus_ start-line as "headers". | |
54 | * | |
55 | * HttpHeader is an object that represents all message-headers in a message. | |
56 | * HttpHeader does not manage start-line. | |
57 | * | |
d8b249ef | 58 | * HttpHeader is implemented as a collection of header "entries". |
59 | * An entry is a (field_id, field_name, field_value) triplet. | |
2ac76861 | 60 | */ |
cb69b4c7 | 61 | |
62 | ||
cb69b4c7 | 63 | /* |
64 | * local constants and vars | |
65 | */ | |
66 | ||
67 | /* | |
68 | * A table with major attributes for every known field. | |
69 | * We calculate name lengths and reorganize this array on start up. | |
70 | * After reorganization, field id can be used as an index to the table. | |
71 | */ | |
de336bbe | 72 | static const HttpHeaderFieldAttrs HeadersAttrs[] = |
62e76326 | 73 | { |
74 | {"Accept", HDR_ACCEPT, ftStr}, | |
75 | ||
76 | {"Accept-Charset", HDR_ACCEPT_CHARSET, ftStr}, | |
77 | {"Accept-Encoding", HDR_ACCEPT_ENCODING, ftStr}, | |
78 | {"Accept-Language", HDR_ACCEPT_LANGUAGE, ftStr}, | |
79 | {"Accept-Ranges", HDR_ACCEPT_RANGES, ftStr}, | |
80 | {"Age", HDR_AGE, ftInt}, | |
81 | {"Allow", HDR_ALLOW, ftStr}, | |
82 | {"Authorization", HDR_AUTHORIZATION, ftStr}, /* for now */ | |
83 | {"Cache-Control", HDR_CACHE_CONTROL, ftPCc}, | |
84 | {"Connection", HDR_CONNECTION, ftStr}, | |
85 | {"Content-Base", HDR_CONTENT_BASE, ftStr}, | |
86 | {"Content-Encoding", HDR_CONTENT_ENCODING, ftStr}, | |
87 | {"Content-Language", HDR_CONTENT_LANGUAGE, ftStr}, | |
88 | {"Content-Length", HDR_CONTENT_LENGTH, ftInt}, | |
89 | {"Content-Location", HDR_CONTENT_LOCATION, ftStr}, | |
90 | {"Content-MD5", HDR_CONTENT_MD5, ftStr}, /* for now */ | |
91 | {"Content-Range", HDR_CONTENT_RANGE, ftPContRange}, | |
92 | {"Content-Type", HDR_CONTENT_TYPE, ftStr}, | |
93 | {"Cookie", HDR_COOKIE, ftStr}, | |
94 | {"Date", HDR_DATE, ftDate_1123}, | |
95 | {"ETag", HDR_ETAG, ftETag}, | |
96 | {"Expires", HDR_EXPIRES, ftDate_1123}, | |
97 | {"From", HDR_FROM, ftStr}, | |
98 | {"Host", HDR_HOST, ftStr}, | |
99 | {"If-Match", HDR_IF_MATCH, ftStr}, /* for now */ | |
100 | {"If-Modified-Since", HDR_IF_MODIFIED_SINCE, ftDate_1123}, | |
101 | {"If-None-Match", HDR_IF_NONE_MATCH, ftStr}, /* for now */ | |
102 | {"If-Range", HDR_IF_RANGE, ftDate_1123_or_ETag}, | |
103 | {"Last-Modified", HDR_LAST_MODIFIED, ftDate_1123}, | |
104 | {"Link", HDR_LINK, ftStr}, | |
105 | {"Location", HDR_LOCATION, ftStr}, | |
106 | {"Max-Forwards", HDR_MAX_FORWARDS, ftInt}, | |
107 | {"Mime-Version", HDR_MIME_VERSION, ftStr}, /* for now */ | |
108 | {"Pragma", HDR_PRAGMA, ftStr}, | |
109 | {"Proxy-Authenticate", HDR_PROXY_AUTHENTICATE, ftStr}, | |
110 | {"Proxy-Authentication-Info", HDR_PROXY_AUTHENTICATION_INFO, ftStr}, | |
111 | {"Proxy-Authorization", HDR_PROXY_AUTHORIZATION, ftStr}, | |
112 | {"Proxy-Connection", HDR_PROXY_CONNECTION, ftStr}, | |
113 | {"Public", HDR_PUBLIC, ftStr}, | |
114 | {"Range", HDR_RANGE, ftPRange}, | |
115 | {"Referer", HDR_REFERER, ftStr}, | |
116 | {"Request-Range", HDR_REQUEST_RANGE, ftPRange}, /* usually matches HDR_RANGE */ | |
117 | {"Retry-After", HDR_RETRY_AFTER, ftStr}, /* for now (ftDate_1123 or ftInt!) */ | |
118 | {"Server", HDR_SERVER, ftStr}, | |
119 | {"Set-Cookie", HDR_SET_COOKIE, ftStr}, | |
120 | {"Title", HDR_TITLE, ftStr}, | |
121 | {"Transfer-Encoding", HDR_TRANSFER_ENCODING, ftStr}, | |
122 | {"Upgrade", HDR_UPGRADE, ftStr}, /* for now */ | |
123 | {"User-Agent", HDR_USER_AGENT, ftStr}, | |
124 | {"Vary", HDR_VARY, ftStr}, /* for now */ | |
125 | {"Via", HDR_VIA, ftStr}, /* for now */ | |
126 | {"Warning", HDR_WARNING, ftStr}, /* for now */ | |
127 | {"WWW-Authenticate", HDR_WWW_AUTHENTICATE, ftStr}, | |
128 | {"Authentication-Info", HDR_AUTHENTICATION_INFO, ftStr}, | |
129 | {"X-Cache", HDR_X_CACHE, ftStr}, | |
130 | {"X-Cache-Lookup", HDR_X_CACHE_LOOKUP, ftStr}, | |
131 | {"X-Forwarded-For", HDR_X_FORWARDED_FOR, ftStr}, | |
132 | {"X-Request-URI", HDR_X_REQUEST_URI, ftStr}, | |
133 | {"X-Squid-Error", HDR_X_SQUID_ERROR, ftStr}, | |
134 | {"Negotiate", HDR_NEGOTIATE, ftStr}, | |
f66a9ef4 | 135 | #if X_ACCELERATOR_VARY |
62e76326 | 136 | {"X-Accelerator-Vary", HDR_X_ACCELERATOR_VARY, ftStr}, |
f66a9ef4 | 137 | #endif |
43ae1d95 | 138 | {"Surrogate-Capability", HDR_SURROGATE_CAPABILITY, ftStr}, |
139 | {"Surrogate-Control", HDR_SURROGATE_CONTROL, ftPSc}, | |
62e76326 | 140 | {"Front-End-Https", HDR_FRONT_END_HTTPS, ftStr}, |
141 | {"Other:", HDR_OTHER, ftStr} /* ':' will not allow matches */ | |
142 | }; | |
143 | ||
de336bbe | 144 | static HttpHeaderFieldInfo *Headers = NULL; |
cb69b4c7 | 145 | |
e6ccf245 | 146 | http_hdr_type &operator++ (http_hdr_type &aHeader) |
147 | { | |
1f1ae50a | 148 | int tmp = (int)aHeader; |
149 | aHeader = (http_hdr_type)(++tmp); | |
e6ccf245 | 150 | return aHeader; |
151 | } | |
152 | ||
153 | ||
cb69b4c7 | 154 | /* |
155 | * headers with field values defined as #(values) in HTTP/1.1 | |
d8b249ef | 156 | * Headers that are currently not recognized, are commented out. |
cb69b4c7 | 157 | */ |
b644367b | 158 | static HttpHeaderMask ListHeadersMask; /* set run-time using ListHeadersArr */ |
de336bbe | 159 | static http_hdr_type ListHeadersArr[] = |
62e76326 | 160 | { |
161 | HDR_ACCEPT, | |
162 | HDR_ACCEPT_CHARSET, HDR_ACCEPT_ENCODING, HDR_ACCEPT_LANGUAGE, | |
163 | HDR_ACCEPT_RANGES, HDR_ALLOW, | |
164 | HDR_CACHE_CONTROL, | |
165 | HDR_CONTENT_ENCODING, | |
166 | HDR_CONTENT_LANGUAGE, | |
167 | HDR_CONNECTION, | |
168 | HDR_IF_MATCH, HDR_IF_NONE_MATCH, | |
169 | HDR_LINK, HDR_PRAGMA, | |
170 | HDR_PROXY_CONNECTION, | |
171 | HDR_TRANSFER_ENCODING, | |
172 | HDR_UPGRADE, | |
173 | HDR_VARY, | |
174 | HDR_VIA, | |
175 | /* HDR_WARNING, */ | |
176 | HDR_WWW_AUTHENTICATE, | |
177 | HDR_AUTHENTICATION_INFO, | |
178 | HDR_PROXY_AUTHENTICATION_INFO, | |
179 | /* HDR_EXPECT, HDR_TE, HDR_TRAILER */ | |
f66a9ef4 | 180 | #if X_ACCELERATOR_VARY |
62e76326 | 181 | HDR_X_ACCELERATOR_VARY, |
f66a9ef4 | 182 | #endif |
43ae1d95 | 183 | HDR_SURROGATE_CAPABILITY, |
184 | HDR_SURROGATE_CONTROL, | |
62e76326 | 185 | HDR_X_FORWARDED_FOR |
186 | }; | |
99edd1c3 | 187 | |
188 | /* general-headers */ | |
189 | static http_hdr_type GeneralHeadersArr[] = | |
62e76326 | 190 | { |
191 | HDR_CACHE_CONTROL, HDR_CONNECTION, HDR_DATE, HDR_PRAGMA, | |
192 | HDR_TRANSFER_ENCODING, | |
193 | HDR_UPGRADE, | |
194 | /* HDR_TRAILER, */ | |
43ae1d95 | 195 | HDR_VIA, |
62e76326 | 196 | }; |
99edd1c3 | 197 | |
198 | /* entity-headers */ | |
199 | static http_hdr_type EntityHeadersArr[] = | |
62e76326 | 200 | { |
201 | HDR_ALLOW, HDR_CONTENT_BASE, HDR_CONTENT_ENCODING, HDR_CONTENT_LANGUAGE, | |
202 | HDR_CONTENT_LENGTH, HDR_CONTENT_LOCATION, HDR_CONTENT_MD5, | |
203 | HDR_CONTENT_RANGE, HDR_CONTENT_TYPE, HDR_ETAG, HDR_EXPIRES, HDR_LAST_MODIFIED, HDR_LINK, | |
204 | HDR_OTHER | |
205 | }; | |
cb69b4c7 | 206 | |
b644367b | 207 | static HttpHeaderMask ReplyHeadersMask; /* set run-time using ReplyHeaders */ |
de336bbe | 208 | static http_hdr_type ReplyHeadersArr[] = |
62e76326 | 209 | { |
210 | HDR_ACCEPT, HDR_ACCEPT_CHARSET, HDR_ACCEPT_ENCODING, HDR_ACCEPT_LANGUAGE, | |
211 | HDR_ACCEPT_RANGES, HDR_AGE, | |
212 | HDR_LOCATION, HDR_MAX_FORWARDS, | |
213 | HDR_MIME_VERSION, HDR_PUBLIC, HDR_RETRY_AFTER, HDR_SERVER, HDR_SET_COOKIE, | |
214 | HDR_VARY, | |
215 | HDR_WARNING, HDR_PROXY_CONNECTION, HDR_X_CACHE, | |
216 | HDR_X_CACHE_LOOKUP, | |
217 | HDR_X_REQUEST_URI, | |
f66a9ef4 | 218 | #if X_ACCELERATOR_VARY |
62e76326 | 219 | HDR_X_ACCELERATOR_VARY, |
f66a9ef4 | 220 | #endif |
43ae1d95 | 221 | HDR_X_SQUID_ERROR, |
222 | HDR_SURROGATE_CONTROL | |
62e76326 | 223 | }; |
cb69b4c7 | 224 | |
b644367b | 225 | static HttpHeaderMask RequestHeadersMask; /* set run-time using RequestHeaders */ |
de336bbe | 226 | static http_hdr_type RequestHeadersArr[] = |
62e76326 | 227 | { |
228 | HDR_AUTHORIZATION, HDR_FROM, HDR_HOST, | |
229 | HDR_IF_MATCH, HDR_IF_MODIFIED_SINCE, HDR_IF_NONE_MATCH, | |
230 | HDR_IF_RANGE, HDR_MAX_FORWARDS, HDR_PROXY_CONNECTION, | |
231 | HDR_PROXY_AUTHORIZATION, HDR_RANGE, HDR_REFERER, HDR_REQUEST_RANGE, | |
43ae1d95 | 232 | HDR_USER_AGENT, HDR_X_FORWARDED_FOR, HDR_SURROGATE_CAPABILITY |
62e76326 | 233 | }; |
cb69b4c7 | 234 | |
12cf1be2 | 235 | /* header accounting */ |
2ac76861 | 236 | static HttpHeaderStat HttpHeaderStats[] = |
62e76326 | 237 | { |
238 | {"all"}, | |
9f4d4f65 | 239 | #if USE_HTCP |
62e76326 | 240 | {"HTCP reply"}, |
9f4d4f65 | 241 | #endif |
62e76326 | 242 | {"request"}, |
243 | {"reply"} | |
244 | }; | |
9bea1d5b | 245 | static int HttpHeaderStatCount = countof(HttpHeaderStats); |
12cf1be2 | 246 | |
7faf2bdb | 247 | static int HeaderEntryParsedCount = 0; |
cb69b4c7 | 248 | |
12cf1be2 | 249 | /* |
250 | * local routines | |
251 | */ | |
cb69b4c7 | 252 | |
253 | #define assert_eid(id) assert((id) >= 0 && (id) < HDR_ENUM_END) | |
254 | ||
9bea1d5b | 255 | static HttpHeaderEntry *httpHeaderEntryCreate(http_hdr_type id, const char *name, const char *value); |
256 | static void httpHeaderEntryDestroy(HttpHeaderEntry * e); | |
257 | static HttpHeaderEntry *httpHeaderEntryParseCreate(const char *field_start, const char *field_end); | |
258 | static void httpHeaderNoteParsedEntry(http_hdr_type id, String value, int error); | |
cb69b4c7 | 259 | |
9bea1d5b | 260 | static void httpHeaderStatInit(HttpHeaderStat * hs, const char *label); |
261 | static void httpHeaderStatDump(const HttpHeaderStat * hs, StoreEntry * e); | |
7c525cc2 | 262 | |
cb69b4c7 | 263 | /* |
264 | * Module initialization routines | |
265 | */ | |
266 | ||
267 | void | |
9bea1d5b | 268 | httpHeaderInitModule(void) |
cb69b4c7 | 269 | { |
9bea1d5b | 270 | int i; |
271 | /* check that we have enough space for masks */ | |
272 | assert(8 * sizeof(HttpHeaderMask) >= HDR_ENUM_END); | |
273 | /* all headers must be described */ | |
274 | assert(countof(HeadersAttrs) == HDR_ENUM_END); | |
62e76326 | 275 | |
9bea1d5b | 276 | if (!Headers) |
62e76326 | 277 | Headers = httpHeaderBuildFieldsInfo(HeadersAttrs, HDR_ENUM_END); |
278 | ||
9bea1d5b | 279 | /* create masks */ |
280 | httpHeaderMaskInit(&ListHeadersMask, 0); | |
62e76326 | 281 | |
8abf232c | 282 | httpHeaderCalcMask(&ListHeadersMask, ListHeadersArr, countof(ListHeadersArr)); |
62e76326 | 283 | |
9bea1d5b | 284 | httpHeaderMaskInit(&ReplyHeadersMask, 0); |
62e76326 | 285 | |
8abf232c | 286 | httpHeaderCalcMask(&ReplyHeadersMask, ReplyHeadersArr, countof(ReplyHeadersArr)); |
62e76326 | 287 | |
8abf232c | 288 | httpHeaderCalcMask(&ReplyHeadersMask, GeneralHeadersArr, countof(GeneralHeadersArr)); |
62e76326 | 289 | |
8abf232c | 290 | httpHeaderCalcMask(&ReplyHeadersMask, EntityHeadersArr, countof(EntityHeadersArr)); |
62e76326 | 291 | |
9bea1d5b | 292 | httpHeaderMaskInit(&RequestHeadersMask, 0); |
62e76326 | 293 | |
8abf232c | 294 | httpHeaderCalcMask(&RequestHeadersMask, RequestHeadersArr, countof(RequestHeadersArr)); |
62e76326 | 295 | |
8abf232c | 296 | httpHeaderCalcMask(&RequestHeadersMask, GeneralHeadersArr, countof(GeneralHeadersArr)); |
62e76326 | 297 | |
8abf232c | 298 | httpHeaderCalcMask(&RequestHeadersMask, EntityHeadersArr, countof(EntityHeadersArr)); |
62e76326 | 299 | |
9bea1d5b | 300 | /* init header stats */ |
301 | assert(HttpHeaderStatCount == hoReply + 1); | |
62e76326 | 302 | |
9bea1d5b | 303 | for (i = 0; i < HttpHeaderStatCount; i++) |
62e76326 | 304 | httpHeaderStatInit(HttpHeaderStats + i, HttpHeaderStats[i].label); |
305 | ||
9bea1d5b | 306 | HttpHeaderStats[hoRequest].owner_mask = &RequestHeadersMask; |
62e76326 | 307 | |
9bea1d5b | 308 | HttpHeaderStats[hoReply].owner_mask = &ReplyHeadersMask; |
62e76326 | 309 | |
86aebcda | 310 | #if USE_HTCP |
62e76326 | 311 | |
9bea1d5b | 312 | HttpHeaderStats[hoHtcpReply].owner_mask = &ReplyHeadersMask; |
62e76326 | 313 | |
86aebcda | 314 | #endif |
9bea1d5b | 315 | /* init dependent modules */ |
316 | httpHdrCcInitModule(); | |
62e76326 | 317 | |
43ae1d95 | 318 | httpHdrScInitModule(); |
319 | ||
9bea1d5b | 320 | /* register with cache manager */ |
321 | cachemgrRegister("http_headers", | |
62e76326 | 322 | "HTTP Header Statistics", httpHeaderStoreReport, 0, 1); |
cb69b4c7 | 323 | } |
324 | ||
7021844c | 325 | void |
9bea1d5b | 326 | httpHeaderCleanModule(void) |
7021844c | 327 | { |
9bea1d5b | 328 | httpHeaderDestroyFieldsInfo(Headers, HDR_ENUM_END); |
329 | Headers = NULL; | |
330 | httpHdrCcCleanModule(); | |
43ae1d95 | 331 | httpHdrScCleanModule(); |
7021844c | 332 | } |
333 | ||
12cf1be2 | 334 | static void |
9bea1d5b | 335 | httpHeaderStatInit(HttpHeaderStat * hs, const char *label) |
12cf1be2 | 336 | { |
9bea1d5b | 337 | assert(hs); |
338 | assert(label); | |
339 | memset(hs, 0, sizeof(HttpHeaderStat)); | |
340 | hs->label = label; | |
341 | statHistEnumInit(&hs->hdrUCountDistr, 32); /* not a real enum */ | |
342 | statHistEnumInit(&hs->fieldTypeDistr, HDR_ENUM_END); | |
343 | statHistEnumInit(&hs->ccTypeDistr, CC_ENUM_END); | |
43ae1d95 | 344 | statHistEnumInit(&hs->scTypeDistr, SC_ENUM_END); |
cb69b4c7 | 345 | } |
346 | ||
cb69b4c7 | 347 | /* |
348 | * HttpHeader Implementation | |
349 | */ | |
350 | ||
75faaa7a | 351 | HttpHeader::HttpHeader() : owner (hoNone), len (0) |
cb69b4c7 | 352 | { |
75faaa7a | 353 | httpHeaderMaskInit(&mask, 0); |
354 | } | |
355 | ||
356 | HttpHeader::HttpHeader(http_hdr_owner_type const &anOwner) : owner (anOwner), len (0) | |
357 | { | |
358 | assert(this); | |
359 | assert(anOwner > hoNone && anOwner <= hoReply); | |
360 | debug(55, 7) ("init-ing hdr: %p owner: %d\n", this, owner); | |
361 | httpHeaderMaskInit(&mask, 0); | |
362 | } | |
363 | ||
364 | HttpHeader::~HttpHeader() | |
365 | { | |
366 | httpHeaderClean (this); | |
cb69b4c7 | 367 | } |
368 | ||
369 | void | |
9bea1d5b | 370 | httpHeaderClean(HttpHeader * hdr) |
cb69b4c7 | 371 | { |
9bea1d5b | 372 | HttpHeaderPos pos = HttpHeaderInitPos; |
373 | HttpHeaderEntry *e; | |
374 | ||
375 | assert(hdr); | |
376 | assert(hdr->owner > hoNone && hdr->owner <= hoReply); | |
377 | debug(55, 7) ("cleaning hdr: %p owner: %d\n", hdr, hdr->owner); | |
378 | ||
51328da8 | 379 | /* |
380 | * An unfortunate bug. The hdr->entries array is initialized | |
381 | * such that count is set to zero. httpHeaderClean() seems to | |
382 | * be called both when 'hdr' is created, and destroyed. Thus, | |
383 | * we accumulate a large number of zero counts for 'hdr' before | |
384 | * it is ever used. Can't think of a good way to fix it, except | |
385 | * adding a state variable that indicates whether or not 'hdr' | |
386 | * has been used. As a hack, just never count zero-sized header | |
387 | * arrays. | |
388 | */ | |
389 | ||
390 | if (0 != hdr->entries.count) | |
391 | statHistCount(&HttpHeaderStats[hdr->owner].hdrUCountDistr, hdr->entries.count); | |
392 | ||
9bea1d5b | 393 | HttpHeaderStats[hdr->owner].destroyedCount++; |
51328da8 | 394 | |
9bea1d5b | 395 | HttpHeaderStats[hdr->owner].busyDestroyedCount += hdr->entries.count > 0; |
62e76326 | 396 | |
9bea1d5b | 397 | while ((e = httpHeaderGetEntry(hdr, &pos))) { |
62e76326 | 398 | /* tmp hack to try to avoid coredumps */ |
399 | ||
400 | if (e->id < 0 || e->id >= HDR_ENUM_END) { | |
401 | debug(55, 0) ("httpHeaderClean BUG: entry[%d] is invalid (%d). Ignored.\n", | |
402 | (int) pos, e->id); | |
403 | } else { | |
404 | statHistCount(&HttpHeaderStats[hdr->owner].fieldTypeDistr, e->id); | |
51328da8 | 405 | /* yes, this destroy() leaves us in an inconsistent state */ |
62e76326 | 406 | httpHeaderEntryDestroy(e); |
407 | } | |
12cf1be2 | 408 | } |
62e76326 | 409 | |
75faaa7a | 410 | hdr->entries.clean(); |
ead5ed09 | 411 | httpHeaderMaskInit(&hdr->mask, 0); |
cb69b4c7 | 412 | } |
413 | ||
2246b732 | 414 | /* append entries (also see httpHeaderUpdate) */ |
415 | void | |
9bea1d5b | 416 | httpHeaderAppend(HttpHeader * dest, const HttpHeader * src) |
2246b732 | 417 | { |
9bea1d5b | 418 | const HttpHeaderEntry *e; |
419 | HttpHeaderPos pos = HttpHeaderInitPos; | |
420 | assert(src && dest); | |
421 | assert(src != dest); | |
422 | debug(55, 7) ("appending hdr: %p += %p\n", dest, src); | |
423 | ||
424 | while ((e = httpHeaderGetEntry(src, &pos))) { | |
62e76326 | 425 | httpHeaderAddEntry(dest, httpHeaderEntryClone(e)); |
2246b732 | 426 | } |
427 | } | |
428 | ||
d8b249ef | 429 | /* use fresh entries to replace old ones */ |
cb69b4c7 | 430 | void |
9bea1d5b | 431 | httpHeaderUpdate(HttpHeader * old, const HttpHeader * fresh, const HttpHeaderMask * denied_mask) |
924f73bc | 432 | { |
433 | assert (old); | |
434 | old->update (fresh, denied_mask); | |
435 | } | |
436 | ||
437 | void | |
438 | HttpHeader::update (HttpHeader const *fresh, HttpHeaderMask const *denied_mask) | |
cb69b4c7 | 439 | { |
9bea1d5b | 440 | const HttpHeaderEntry *e; |
441 | HttpHeaderPos pos = HttpHeaderInitPos; | |
924f73bc | 442 | assert(this && fresh); |
443 | assert(this != fresh); | |
444 | debug(55, 7) ("updating hdr: %p <- %p\n", this, fresh); | |
9bea1d5b | 445 | |
446 | while ((e = httpHeaderGetEntry(fresh, &pos))) { | |
62e76326 | 447 | /* deny bad guys (ok to check for HDR_OTHER) here */ |
448 | ||
449 | if (denied_mask && CBIT_TEST(*denied_mask, e->id)) | |
450 | continue; | |
451 | ||
924f73bc | 452 | httpHeaderDelByName(this, e->name.buf()); |
62e76326 | 453 | |
924f73bc | 454 | httpHeaderAddEntry(this, httpHeaderEntryClone(e)); |
cb69b4c7 | 455 | } |
cb69b4c7 | 456 | } |
457 | ||
458 | /* just handy in parsing: resets and returns false */ | |
9f4d4f65 | 459 | int |
9bea1d5b | 460 | httpHeaderReset(HttpHeader * hdr) |
2ac76861 | 461 | { |
d71e8477 | 462 | http_hdr_owner_type ho; |
9bea1d5b | 463 | assert(hdr); |
464 | ho = hdr->owner; | |
465 | httpHeaderClean(hdr); | |
75faaa7a | 466 | *hdr = HttpHeader(ho); |
9bea1d5b | 467 | return 0; |
cb69b4c7 | 468 | } |
469 | ||
cb69b4c7 | 470 | int |
9bea1d5b | 471 | httpHeaderParse(HttpHeader * hdr, const char *header_start, const char *header_end) |
cb69b4c7 | 472 | { |
52d3f198 | 473 | const char *field_ptr = header_start; |
474 | HttpHeaderEntry *e, *e2; | |
9bea1d5b | 475 | |
476 | assert(hdr); | |
477 | assert(header_start && header_end); | |
478 | debug(55, 7) ("parsing hdr: (%p)\n%s\n", hdr, getStringPrefix(header_start, header_end)); | |
479 | HttpHeaderStats[hdr->owner].parsedCount++; | |
62e76326 | 480 | |
52d3f198 | 481 | if (memchr(header_start, '\0', header_end - header_start)) { |
482 | debug(55, 1) ("WARNING: HTTP header contains NULL characters {%s}\n", | |
483 | getStringPrefix(header_start, header_end)); | |
484 | return httpHeaderReset(hdr); | |
485 | } | |
486 | ||
487 | /* common format headers are "<name>:[ws]<value>" lines delimited by <CRLF>. | |
488 | * continuation lines start with a (single) space or tab */ | |
489 | while (field_ptr < header_end) { | |
490 | const char *field_start = field_ptr; | |
62e76326 | 491 | const char *field_end; |
62e76326 | 492 | |
493 | do { | |
52d3f198 | 494 | const char *this_line = field_ptr; |
495 | field_ptr = (const char *)memchr(field_ptr, '\n', header_end - field_ptr); | |
496 | ||
497 | if (!field_ptr) | |
498 | return httpHeaderReset(hdr); /* missing <LF> */ | |
499 | ||
500 | field_end = field_ptr; | |
501 | ||
502 | field_ptr++; /* Move to next line */ | |
503 | ||
504 | if (field_end > this_line && field_end[-1] == '\r') { | |
505 | field_end--; /* Ignore CR LF */ | |
506 | /* Ignore CR CR LF in relaxed mode */ | |
507 | ||
508 | if (Config.onoff.relaxed_header_parser && field_end > this_line + 1 && field_end[-1] == '\r') { | |
509 | debug(55, Config.onoff.relaxed_header_parser <= 0 ? 1 : 2) | |
510 | ("WARNING: Double CR characters in HTTP header {%s}\n", getStringPrefix(field_start, field_end)); | |
511 | field_end--; | |
512 | } | |
513 | } | |
514 | ||
515 | /* Barf on stray CR characters */ | |
516 | if (memchr(this_line, '\r', field_end - this_line)) { | |
517 | debug(55, 1) ("WARNING: suspicious CR characters in HTTP header {%s}\n", | |
518 | getStringPrefix(field_start, field_end)); | |
519 | ||
520 | if (Config.onoff.relaxed_header_parser) { | |
521 | char *p = (char *) this_line; /* XXX Warning! This destroys original header content and violates specifications somewhat */ | |
522 | ||
523 | while ((p = (char *)memchr(p, '\r', field_end - p)) != NULL) | |
524 | *p++ = ' '; | |
525 | } else | |
526 | return httpHeaderReset(hdr); | |
527 | } | |
528 | ||
529 | if (this_line + 1 == field_end && this_line > field_start) { | |
530 | debug(55, 1) ("WARNING: Blank continuation line in HTTP header {%s}\n", | |
531 | getStringPrefix(header_start, header_end)); | |
532 | return httpHeaderReset(hdr); | |
533 | } | |
534 | } while (field_ptr < header_end && (*field_ptr == ' ' || *field_ptr == '\t')); | |
535 | ||
536 | if (field_start == field_end) { | |
537 | if (field_ptr < header_end) { | |
538 | debug(55, 1) ("WARNING: unparseable HTTP header field near {%s}\n", | |
539 | getStringPrefix(field_start, header_end)); | |
540 | return httpHeaderReset(hdr); | |
541 | } | |
542 | ||
543 | break; /* terminating blank line */ | |
544 | } | |
62e76326 | 545 | |
546 | e = httpHeaderEntryParseCreate(field_start, field_end); | |
547 | ||
47ac2ebe | 548 | if (NULL == e) { |
52d3f198 | 549 | debug(55, 1) ("WARNING: unparseable HTTP header field {%s}\n", |
62e76326 | 550 | getStringPrefix(field_start, field_end)); |
52d3f198 | 551 | debug(55, Config.onoff.relaxed_header_parser <= 0 ? 1 : 2) |
552 | (" in {%s}\n", getStringPrefix(header_start, header_end)); | |
553 | ||
554 | if (Config.onoff.relaxed_header_parser) | |
555 | continue; | |
556 | else | |
557 | return httpHeaderReset(hdr); | |
47ac2ebe | 558 | } |
62e76326 | 559 | |
52d3f198 | 560 | if (e->id == HDR_CONTENT_LENGTH && (e2 = httpHeaderFindEntry(hdr, e->id)) != NULL) { |
b3123159 | 561 | if (e->value.cmp(e2->value.buf()) != 0) { |
9331e4b4 | 562 | ssize_t l1, l2; |
563 | debug(55, Config.onoff.relaxed_header_parser <= 0 ? 1 : 2) ("WARNING: found two conflicting content-length headers in {%s}\n", getStringPrefix(header_start, header_end)); | |
564 | ||
565 | if (!Config.onoff.relaxed_header_parser) { | |
566 | httpHeaderEntryDestroy(e); | |
567 | return httpHeaderReset(hdr); | |
568 | } | |
569 | ||
570 | if (!httpHeaderParseSize(e->value.buf(), &l1)) { | |
571 | debug(55, 1)("WARNING: Unparseable content-length '%s'\n", e->value.buf()); | |
572 | httpHeaderEntryDestroy(e); | |
573 | continue; | |
574 | } else if (!httpHeaderParseSize(e2->value.buf(), &l2)) { | |
575 | debug(55, 1)("WARNING: Unparseable content-length '%s'\n", e2->value.buf()); | |
576 | httpHeaderDelById(hdr, e2->id); | |
577 | } else if (l1 > l2) { | |
578 | httpHeaderDelById(hdr, e2->id); | |
579 | } else { | |
580 | httpHeaderEntryDestroy(e); | |
581 | continue; | |
582 | } | |
52d3f198 | 583 | } else { |
584 | debug(55, Config.onoff.relaxed_header_parser <= 0 ? 1 : 2) | |
585 | ("NOTICE: found double content-length header\n"); | |
b3123159 | 586 | |
587 | if (Config.onoff.relaxed_header_parser) { | |
588 | httpHeaderEntryDestroy(e); | |
589 | continue; | |
590 | } else { | |
591 | httpHeaderEntryDestroy(e); | |
592 | return httpHeaderReset(hdr); | |
593 | } | |
52d3f198 | 594 | } |
595 | } | |
62e76326 | 596 | |
52d3f198 | 597 | if (e->id == HDR_OTHER && stringHasWhitespace(e->name.buf())) { |
598 | debug(55, Config.onoff.relaxed_header_parser <= 0 ? 1 : 2) | |
599 | ("WARNING: found whitespace in HTTP header name {%s}\n", getStringPrefix(field_start, field_end)); | |
47ac2ebe | 600 | |
52d3f198 | 601 | if (!Config.onoff.relaxed_header_parser) { |
602 | httpHeaderEntryDestroy(e); | |
603 | return httpHeaderReset(hdr); | |
604 | } | |
605 | } | |
62e76326 | 606 | |
52d3f198 | 607 | httpHeaderAddEntry(hdr, e); |
cb69b4c7 | 608 | } |
62e76326 | 609 | |
9bea1d5b | 610 | return 1; /* even if no fields where found, it is a valid header */ |
cb69b4c7 | 611 | } |
612 | ||
99edd1c3 | 613 | /* packs all the entries using supplied packer */ |
cb69b4c7 | 614 | void |
9bea1d5b | 615 | httpHeaderPackInto(const HttpHeader * hdr, Packer * p) |
cb69b4c7 | 616 | { |
9bea1d5b | 617 | HttpHeaderPos pos = HttpHeaderInitPos; |
618 | const HttpHeaderEntry *e; | |
619 | assert(hdr && p); | |
620 | debug(55, 7) ("packing hdr: (%p)\n", hdr); | |
621 | /* pack all entries one by one */ | |
62e76326 | 622 | |
9bea1d5b | 623 | while ((e = httpHeaderGetEntry(hdr, &pos))) |
62e76326 | 624 | httpHeaderEntryPackInto(e, p); |
cb69b4c7 | 625 | } |
626 | ||
627 | /* returns next valid entry */ | |
99edd1c3 | 628 | HttpHeaderEntry * |
9bea1d5b | 629 | httpHeaderGetEntry(const HttpHeader * hdr, HttpHeaderPos * pos) |
cb69b4c7 | 630 | { |
9bea1d5b | 631 | assert(hdr && pos); |
732735ed | 632 | assert(*pos >= HttpHeaderInitPos && *pos < (ssize_t)hdr->entries.count); |
62e76326 | 633 | |
732735ed | 634 | for ((*pos)++; *pos < (ssize_t)hdr->entries.count; (*pos)++) { |
62e76326 | 635 | if (hdr->entries.items[*pos]) |
636 | return (HttpHeaderEntry*)hdr->entries.items[*pos]; | |
cb69b4c7 | 637 | } |
62e76326 | 638 | |
9bea1d5b | 639 | return NULL; |
cb69b4c7 | 640 | } |
641 | ||
642 | /* | |
d8b249ef | 643 | * returns a pointer to a specified entry if any |
644 | * note that we return one entry so it does not make much sense to ask for | |
645 | * "list" headers | |
cb69b4c7 | 646 | */ |
de336bbe | 647 | HttpHeaderEntry * |
9bea1d5b | 648 | httpHeaderFindEntry(const HttpHeader * hdr, http_hdr_type id) |
cb69b4c7 | 649 | { |
9bea1d5b | 650 | HttpHeaderPos pos = HttpHeaderInitPos; |
651 | HttpHeaderEntry *e; | |
652 | assert(hdr); | |
653 | assert_eid(id); | |
654 | assert(!CBIT_TEST(ListHeadersMask, id)); | |
655 | ||
656 | /* check mask first */ | |
62e76326 | 657 | |
9bea1d5b | 658 | if (!CBIT_TEST(hdr->mask, id)) |
62e76326 | 659 | return NULL; |
660 | ||
9bea1d5b | 661 | /* looks like we must have it, do linear search */ |
662 | while ((e = httpHeaderGetEntry(hdr, &pos))) { | |
62e76326 | 663 | if (e->id == id) |
664 | return e; | |
cb69b4c7 | 665 | } |
62e76326 | 666 | |
9bea1d5b | 667 | /* hm.. we thought it was there, but it was not found */ |
668 | assert(0); | |
62e76326 | 669 | |
9bea1d5b | 670 | return NULL; /* not reached */ |
cb69b4c7 | 671 | } |
672 | ||
a622fff0 | 673 | /* |
674 | * same as httpHeaderFindEntry | |
675 | */ | |
676 | static HttpHeaderEntry * | |
9bea1d5b | 677 | httpHeaderFindLastEntry(const HttpHeader * hdr, http_hdr_type id) |
a622fff0 | 678 | { |
9bea1d5b | 679 | HttpHeaderPos pos = HttpHeaderInitPos; |
680 | HttpHeaderEntry *e; | |
681 | HttpHeaderEntry *result = NULL; | |
682 | assert(hdr); | |
683 | assert_eid(id); | |
684 | assert(!CBIT_TEST(ListHeadersMask, id)); | |
685 | ||
686 | /* check mask first */ | |
62e76326 | 687 | |
9bea1d5b | 688 | if (!CBIT_TEST(hdr->mask, id)) |
62e76326 | 689 | return NULL; |
690 | ||
9bea1d5b | 691 | /* looks like we must have it, do linear search */ |
692 | while ((e = httpHeaderGetEntry(hdr, &pos))) { | |
62e76326 | 693 | if (e->id == id) |
694 | result = e; | |
a622fff0 | 695 | } |
62e76326 | 696 | |
9bea1d5b | 697 | assert(result); /* must be there! */ |
698 | return result; | |
a622fff0 | 699 | } |
700 | ||
cb69b4c7 | 701 | /* |
d8b249ef | 702 | * deletes all fields with a given name if any, returns #fields deleted; |
cb69b4c7 | 703 | */ |
2ac76861 | 704 | int |
9bea1d5b | 705 | httpHeaderDelByName(HttpHeader * hdr, const char *name) |
cb69b4c7 | 706 | { |
9bea1d5b | 707 | int count = 0; |
708 | HttpHeaderPos pos = HttpHeaderInitPos; | |
709 | HttpHeaderEntry *e; | |
710 | httpHeaderMaskInit(&hdr->mask, 0); /* temporal inconsistency */ | |
d7298d24 | 711 | debug(55, 9) ("deleting '%s' fields in hdr %p\n", name, hdr); |
62e76326 | 712 | |
9bea1d5b | 713 | while ((e = httpHeaderGetEntry(hdr, &pos))) { |
650c4b88 | 714 | if (!e->name.caseCmp(name)) { |
62e76326 | 715 | httpHeaderDelAt(hdr, pos); |
716 | count++; | |
717 | } else | |
718 | CBIT_SET(hdr->mask, e->id); | |
cb69b4c7 | 719 | } |
62e76326 | 720 | |
9bea1d5b | 721 | return count; |
cb69b4c7 | 722 | } |
723 | ||
2246b732 | 724 | /* deletes all entries with a given id, returns the #entries deleted */ |
725 | int | |
9bea1d5b | 726 | httpHeaderDelById(HttpHeader * hdr, http_hdr_type id) |
d8b249ef | 727 | { |
9bea1d5b | 728 | int count = 0; |
729 | HttpHeaderPos pos = HttpHeaderInitPos; | |
730 | HttpHeaderEntry *e; | |
731 | debug(55, 8) ("%p del-by-id %d\n", hdr, id); | |
732 | assert(hdr); | |
733 | assert_eid(id); | |
e6ca7a9b | 734 | assert(id != HDR_OTHER); /* does not make sense */ |
62e76326 | 735 | |
9bea1d5b | 736 | if (!CBIT_TEST(hdr->mask, id)) |
62e76326 | 737 | return 0; |
738 | ||
9bea1d5b | 739 | while ((e = httpHeaderGetEntry(hdr, &pos))) { |
62e76326 | 740 | if (e->id == id) { |
741 | httpHeaderDelAt(hdr, pos); | |
742 | count++; | |
743 | } | |
d8b249ef | 744 | } |
62e76326 | 745 | |
9bea1d5b | 746 | CBIT_CLR(hdr->mask, id); |
747 | assert(count); | |
748 | return count; | |
d8b249ef | 749 | } |
d8b249ef | 750 | |
cb69b4c7 | 751 | /* |
752 | * deletes an entry at pos and leaves a gap; leaving a gap makes it | |
753 | * possible to iterate(search) and delete fields at the same time | |
754 | */ | |
2246b732 | 755 | void |
9bea1d5b | 756 | httpHeaderDelAt(HttpHeader * hdr, HttpHeaderPos pos) |
cb69b4c7 | 757 | { |
9bea1d5b | 758 | HttpHeaderEntry *e; |
732735ed | 759 | assert(pos >= HttpHeaderInitPos && pos < (ssize_t)hdr->entries.count); |
e6ccf245 | 760 | e = (HttpHeaderEntry*)hdr->entries.items[pos]; |
9bea1d5b | 761 | hdr->entries.items[pos] = NULL; |
762 | /* decrement header length, allow for ": " and crlf */ | |
528b2c61 | 763 | hdr->len -= e->name.size() + 2 + e->value.size() + 2; |
9bea1d5b | 764 | assert(hdr->len >= 0); |
765 | httpHeaderEntryDestroy(e); | |
cb69b4c7 | 766 | } |
767 | ||
99edd1c3 | 768 | |
62e76326 | 769 | /* appends an entry; |
99edd1c3 | 770 | * does not call httpHeaderEntryClone() so one should not reuse "*e" |
cb69b4c7 | 771 | */ |
99edd1c3 | 772 | void |
9bea1d5b | 773 | httpHeaderAddEntry(HttpHeader * hdr, HttpHeaderEntry * e) |
cb69b4c7 | 774 | { |
9bea1d5b | 775 | assert(hdr && e); |
776 | assert_eid(e->id); | |
777 | ||
d7298d24 | 778 | debugs(55, 9, hdr << " adding entry: " << e->id << " at " << |
e4049756 | 779 | hdr->entries.count); |
62e76326 | 780 | |
9bea1d5b | 781 | if (CBIT_TEST(hdr->mask, e->id)) |
62e76326 | 782 | Headers[e->id].stat.repCount++; |
9bea1d5b | 783 | else |
62e76326 | 784 | CBIT_SET(hdr->mask, e->id); |
785 | ||
75faaa7a | 786 | hdr->entries.push_back(e); |
62e76326 | 787 | |
9bea1d5b | 788 | /* increment header length, allow for ": " and crlf */ |
528b2c61 | 789 | hdr->len += e->name.size() + 2 + e->value.size() + 2; |
cb69b4c7 | 790 | } |
791 | ||
bbe58ab5 | 792 | /* inserts an entry; |
793 | * does not call httpHeaderEntryClone() so one should not reuse "*e" | |
794 | */ | |
795 | void | |
796 | httpHeaderInsertEntry(HttpHeader * hdr, HttpHeaderEntry * e) | |
797 | { | |
798 | assert(hdr && e); | |
799 | assert_eid(e->id); | |
800 | ||
801 | debugs(55, 7, hdr << " adding entry: " << e->id << " at " << | |
802 | hdr->entries.count); | |
803 | ||
804 | if (CBIT_TEST(hdr->mask, e->id)) | |
805 | Headers[e->id].stat.repCount++; | |
806 | else | |
807 | CBIT_SET(hdr->mask, e->id); | |
808 | ||
809 | hdr->entries.insert(e); | |
810 | ||
811 | /* increment header length, allow for ": " and crlf */ | |
812 | hdr->len += e->name.size() + 2 + e->value.size() + 2; | |
813 | } | |
814 | ||
99edd1c3 | 815 | /* return a list of entries with the same id separated by ',' and ws */ |
816 | String | |
9bea1d5b | 817 | httpHeaderGetList(const HttpHeader * hdr, http_hdr_type id) |
cb69b4c7 | 818 | { |
9bea1d5b | 819 | HttpHeaderEntry *e; |
820 | HttpHeaderPos pos = HttpHeaderInitPos; | |
d7298d24 | 821 | debug(55, 9) ("%p: joining for id %d\n", hdr, id); |
9bea1d5b | 822 | /* only fields from ListHeaders array can be "listed" */ |
823 | assert(CBIT_TEST(ListHeadersMask, id)); | |
62e76326 | 824 | |
9bea1d5b | 825 | if (!CBIT_TEST(hdr->mask, id)) |
650c4b88 | 826 | return String(); |
827 | ||
828 | String s; | |
62e76326 | 829 | |
9bea1d5b | 830 | while ((e = httpHeaderGetEntry(hdr, &pos))) { |
62e76326 | 831 | if (e->id == id) |
832 | strListAdd(&s, e->value.buf(), ','); | |
d35b9a94 | 833 | } |
62e76326 | 834 | |
9bea1d5b | 835 | /* |
836 | * note: we might get an empty (len==0) string if there was an "empty" | |
837 | * header; we must not get a NULL string though. | |
838 | */ | |
528b2c61 | 839 | assert(s.buf()); |
62e76326 | 840 | |
9bea1d5b | 841 | /* temporary warning: remove it! @?@ @?@ @?@ */ |
528b2c61 | 842 | if (!s.size()) |
62e76326 | 843 | debug(55, 3) ("empty list header: %s (%d)\n", Headers[id].name.buf(), id); |
844 | ||
528b2c61 | 845 | debug(55, 6) ("%p: joined for id %d: %s\n", hdr, id, s.buf()); |
62e76326 | 846 | |
9bea1d5b | 847 | return s; |
cb69b4c7 | 848 | } |
849 | ||
f66a9ef4 | 850 | /* return a string or list of entries with the same id separated by ',' and ws */ |
851 | String | |
9bea1d5b | 852 | httpHeaderGetStrOrList(const HttpHeader * hdr, http_hdr_type id) |
f66a9ef4 | 853 | { |
c7327fa0 | 854 | HttpHeaderEntry *e; |
9bea1d5b | 855 | |
856 | if (CBIT_TEST(ListHeadersMask, id)) | |
62e76326 | 857 | return httpHeaderGetList(hdr, id); |
858 | ||
528b2c61 | 859 | if ((e = httpHeaderFindEntry(hdr, id))) |
62e76326 | 860 | return e->value; |
861 | ||
650c4b88 | 862 | return String(); |
f66a9ef4 | 863 | } |
864 | ||
865 | /* | |
bd412580 | 866 | * Returns the value of the specified header. |
f66a9ef4 | 867 | */ |
868 | String | |
9bea1d5b | 869 | httpHeaderGetByName(const HttpHeader * hdr, const char *name) |
f66a9ef4 | 870 | { |
9bea1d5b | 871 | http_hdr_type id; |
872 | HttpHeaderPos pos = HttpHeaderInitPos; | |
873 | HttpHeaderEntry *e; | |
9bea1d5b | 874 | |
875 | assert(hdr); | |
876 | assert(name); | |
877 | ||
878 | /* First try the quick path */ | |
879 | id = httpHeaderIdByNameDef(name, strlen(name)); | |
62e76326 | 880 | |
9bea1d5b | 881 | if (id != -1) |
62e76326 | 882 | return httpHeaderGetStrOrList(hdr, id); |
9bea1d5b | 883 | |
650c4b88 | 884 | String result; |
885 | ||
9bea1d5b | 886 | /* Sorry, an unknown header name. Do linear search */ |
887 | while ((e = httpHeaderGetEntry(hdr, &pos))) { | |
650c4b88 | 888 | if (e->id == HDR_OTHER && e->name.caseCmp(name) == 0) { |
62e76326 | 889 | strListAdd(&result, e->value.buf(), ','); |
890 | } | |
f66a9ef4 | 891 | } |
62e76326 | 892 | |
9bea1d5b | 893 | return result; |
f66a9ef4 | 894 | } |
cb69b4c7 | 895 | |
14b463aa | 896 | /* |
372fdfbf | 897 | * Returns a the value of the specified list member, if any. |
14b463aa | 898 | */ |
899 | String | |
900 | httpHeaderGetByNameListMember(const HttpHeader * hdr, const char *name, const char *member, const char separator) | |
901 | { | |
14b463aa | 902 | String header; |
903 | const char *pos = NULL; | |
904 | const char *item; | |
905 | int ilen; | |
906 | int mlen = strlen(member); | |
907 | ||
908 | assert(hdr); | |
909 | assert(name); | |
910 | ||
911 | header = httpHeaderGetByName(hdr, name); | |
912 | ||
650c4b88 | 913 | String result; |
914 | ||
14b463aa | 915 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { |
62e76326 | 916 | if (strncmp(item, member, mlen) == 0 && item[mlen] == '=') { |
917 | result.append(item + mlen + 1, ilen - mlen - 1); | |
918 | break; | |
919 | } | |
14b463aa | 920 | } |
62e76326 | 921 | |
14b463aa | 922 | return result; |
923 | } | |
924 | ||
925 | /* | |
926 | * returns a the value of the specified list member, if any. | |
927 | */ | |
928 | String | |
929 | httpHeaderGetListMember(const HttpHeader * hdr, http_hdr_type id, const char *member, const char separator) | |
930 | { | |
14b463aa | 931 | String header; |
932 | const char *pos = NULL; | |
933 | const char *item; | |
934 | int ilen; | |
935 | int mlen = strlen(member); | |
936 | ||
937 | assert(hdr); | |
938 | assert(id >= 0); | |
939 | ||
940 | header = httpHeaderGetStrOrList(hdr, id); | |
650c4b88 | 941 | String result; |
14b463aa | 942 | |
943 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { | |
62e76326 | 944 | if (strncmp(item, member, mlen) == 0 && item[mlen] == '=') { |
945 | result.append(item + mlen + 1, ilen - mlen - 1); | |
946 | break; | |
947 | } | |
14b463aa | 948 | } |
62e76326 | 949 | |
528b2c61 | 950 | header.clean(); |
14b463aa | 951 | return result; |
952 | } | |
953 | ||
cb69b4c7 | 954 | /* test if a field is present */ |
2ac76861 | 955 | int |
9bea1d5b | 956 | httpHeaderHas(const HttpHeader * hdr, http_hdr_type id) |
cb69b4c7 | 957 | { |
9bea1d5b | 958 | assert(hdr); |
959 | assert_eid(id); | |
960 | assert(id != HDR_OTHER); | |
d7298d24 | 961 | debug(55, 9) ("%p lookup for %d\n", hdr, id); |
9bea1d5b | 962 | return CBIT_TEST(hdr->mask, id); |
cb69b4c7 | 963 | } |
964 | ||
965 | void | |
9bea1d5b | 966 | httpHeaderPutInt(HttpHeader * hdr, http_hdr_type id, int number) |
cb69b4c7 | 967 | { |
9bea1d5b | 968 | assert_eid(id); |
969 | assert(Headers[id].type == ftInt); /* must be of an appropriate type */ | |
970 | assert(number >= 0); | |
971 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(id, NULL, xitoa(number))); | |
cb69b4c7 | 972 | } |
973 | ||
974 | void | |
9bea1d5b | 975 | httpHeaderPutTime(HttpHeader * hdr, http_hdr_type id, time_t htime) |
cb69b4c7 | 976 | { |
9bea1d5b | 977 | assert_eid(id); |
978 | assert(Headers[id].type == ftDate_1123); /* must be of an appropriate type */ | |
a1d6870f | 979 | assert(htime >= 0); |
9bea1d5b | 980 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(id, NULL, mkrfc1123(htime))); |
cb69b4c7 | 981 | } |
2ac76861 | 982 | |
bbe58ab5 | 983 | void |
984 | httpHeaderInsertTime(HttpHeader * hdr, http_hdr_type id, time_t htime) | |
985 | { | |
986 | assert_eid(id); | |
987 | assert(Headers[id].type == ftDate_1123); /* must be of an appropriate type */ | |
988 | assert(htime >= 0); | |
989 | httpHeaderInsertEntry(hdr, httpHeaderEntryCreate(id, NULL, mkrfc1123(htime))); | |
990 | } | |
991 | ||
cb69b4c7 | 992 | void |
9bea1d5b | 993 | httpHeaderPutStr(HttpHeader * hdr, http_hdr_type id, const char *str) |
cb69b4c7 | 994 | { |
9bea1d5b | 995 | assert_eid(id); |
996 | assert(Headers[id].type == ftStr); /* must be of an appropriate type */ | |
997 | assert(str); | |
998 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(id, NULL, str)); | |
cb69b4c7 | 999 | } |
1000 | ||
63259c34 | 1001 | void |
9bea1d5b | 1002 | httpHeaderPutAuth(HttpHeader * hdr, const char *auth_scheme, const char *realm) |
63259c34 | 1003 | { |
9bea1d5b | 1004 | assert(hdr && auth_scheme && realm); |
1005 | httpHeaderPutStrf(hdr, HDR_WWW_AUTHENTICATE, "%s realm=\"%s\"", auth_scheme, realm); | |
63259c34 | 1006 | } |
1007 | ||
99edd1c3 | 1008 | void |
9bea1d5b | 1009 | httpHeaderPutCc(HttpHeader * hdr, const HttpHdrCc * cc) |
99edd1c3 | 1010 | { |
9bea1d5b | 1011 | MemBuf mb; |
1012 | Packer p; | |
1013 | assert(hdr && cc); | |
1014 | /* remove old directives if any */ | |
1015 | httpHeaderDelById(hdr, HDR_CACHE_CONTROL); | |
1016 | /* pack into mb */ | |
2fe7eff9 | 1017 | mb.init(); |
9bea1d5b | 1018 | packerToMemInit(&p, &mb); |
1019 | httpHdrCcPackInto(cc, &p); | |
1020 | /* put */ | |
1021 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(HDR_CACHE_CONTROL, NULL, mb.buf)); | |
1022 | /* cleanup */ | |
1023 | packerClean(&p); | |
2fe7eff9 | 1024 | mb.clean(); |
99edd1c3 | 1025 | } |
1026 | ||
d192d11f | 1027 | void |
9bea1d5b | 1028 | httpHeaderPutContRange(HttpHeader * hdr, const HttpHdrContRange * cr) |
d192d11f | 1029 | { |
9bea1d5b | 1030 | MemBuf mb; |
1031 | Packer p; | |
1032 | assert(hdr && cr); | |
1033 | /* remove old directives if any */ | |
1034 | httpHeaderDelById(hdr, HDR_CONTENT_RANGE); | |
1035 | /* pack into mb */ | |
2fe7eff9 | 1036 | mb.init(); |
9bea1d5b | 1037 | packerToMemInit(&p, &mb); |
1038 | httpHdrContRangePackInto(cr, &p); | |
1039 | /* put */ | |
1040 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(HDR_CONTENT_RANGE, NULL, mb.buf)); | |
1041 | /* cleanup */ | |
1042 | packerClean(&p); | |
2fe7eff9 | 1043 | mb.clean(); |
d192d11f | 1044 | } |
1045 | ||
1046 | void | |
9bea1d5b | 1047 | httpHeaderPutRange(HttpHeader * hdr, const HttpHdrRange * range) |
d192d11f | 1048 | { |
9bea1d5b | 1049 | MemBuf mb; |
1050 | Packer p; | |
1051 | assert(hdr && range); | |
1052 | /* remove old directives if any */ | |
1053 | httpHeaderDelById(hdr, HDR_RANGE); | |
1054 | /* pack into mb */ | |
2fe7eff9 | 1055 | mb.init(); |
9bea1d5b | 1056 | packerToMemInit(&p, &mb); |
528b2c61 | 1057 | range->packInto(&p); |
9bea1d5b | 1058 | /* put */ |
1059 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(HDR_RANGE, NULL, mb.buf)); | |
1060 | /* cleanup */ | |
1061 | packerClean(&p); | |
2fe7eff9 | 1062 | mb.clean(); |
d192d11f | 1063 | } |
1064 | ||
43ae1d95 | 1065 | void |
1066 | httpHeaderPutSc(HttpHeader *hdr, const HttpHdrSc *sc) | |
1067 | { | |
1068 | MemBuf mb; | |
1069 | Packer p; | |
1070 | assert(hdr && sc); | |
1071 | /* remove old directives if any */ | |
1072 | httpHeaderDelById(hdr, HDR_RANGE); | |
1073 | /* pack into mb */ | |
2fe7eff9 | 1074 | mb.init(); |
43ae1d95 | 1075 | packerToMemInit(&p, &mb); |
1076 | httpHdrScPackInto(sc, &p); | |
1077 | /* put */ | |
1078 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(HDR_SURROGATE_CONTROL, NULL, mb.buf)); | |
1079 | /* cleanup */ | |
1080 | packerClean(&p); | |
2fe7eff9 | 1081 | mb.clean(); |
43ae1d95 | 1082 | } |
1083 | ||
cb69b4c7 | 1084 | /* add extension header (these fields are not parsed/analyzed/joined, etc.) */ |
1085 | void | |
9bea1d5b | 1086 | httpHeaderPutExt(HttpHeader * hdr, const char *name, const char *value) |
cb69b4c7 | 1087 | { |
9bea1d5b | 1088 | assert(name && value); |
1089 | debug(55, 8) ("%p adds ext entry '%s: %s'\n", hdr, name, value); | |
1090 | httpHeaderAddEntry(hdr, httpHeaderEntryCreate(HDR_OTHER, name, value)); | |
cb69b4c7 | 1091 | } |
1092 | ||
7c525cc2 | 1093 | int |
528b2c61 | 1094 | httpHeaderEntryGetInt (const HttpHeaderEntry * e) |
7c525cc2 | 1095 | { |
9bea1d5b | 1096 | int value = -1; |
1097 | int ok; | |
528b2c61 | 1098 | assert (e); |
1099 | assert_eid (e->id); | |
1100 | assert (Headers[e->id].type == ftInt); | |
1101 | ok = httpHeaderParseInt(e->value.buf(), &value); | |
1102 | httpHeaderNoteParsedEntry(e->id, e->value, !ok); | |
1103 | /* XXX: Should we check ok - ie | |
1104 | * return ok ? -1 : value; | |
1105 | */ | |
1106 | return value; | |
1107 | } | |
1108 | ||
1109 | int | |
1110 | httpHeaderGetInt(const HttpHeader * hdr, http_hdr_type id) | |
1111 | { | |
9bea1d5b | 1112 | assert_eid(id); |
1113 | assert(Headers[id].type == ftInt); /* must be of an appropriate type */ | |
528b2c61 | 1114 | HttpHeaderEntry *e; |
62e76326 | 1115 | |
528b2c61 | 1116 | if ((e = httpHeaderFindEntry(hdr, id))) |
62e76326 | 1117 | return httpHeaderEntryGetInt (e); |
1118 | ||
528b2c61 | 1119 | return -1; |
7c525cc2 | 1120 | } |
1121 | ||
de336bbe | 1122 | time_t |
9bea1d5b | 1123 | httpHeaderGetTime(const HttpHeader * hdr, http_hdr_type id) |
cb69b4c7 | 1124 | { |
9bea1d5b | 1125 | HttpHeaderEntry *e; |
1126 | time_t value = -1; | |
1127 | assert_eid(id); | |
1128 | assert(Headers[id].type == ftDate_1123); /* must be of an appropriate type */ | |
62e76326 | 1129 | |
9bea1d5b | 1130 | if ((e = httpHeaderFindEntry(hdr, id))) { |
62e76326 | 1131 | value = parse_rfc1123(e->value.buf()); |
1132 | httpHeaderNoteParsedEntry(e->id, e->value, value < 0); | |
d8b249ef | 1133 | } |
62e76326 | 1134 | |
9bea1d5b | 1135 | return value; |
cb69b4c7 | 1136 | } |
1137 | ||
99edd1c3 | 1138 | /* sync with httpHeaderGetLastStr */ |
de336bbe | 1139 | const char * |
9bea1d5b | 1140 | httpHeaderGetStr(const HttpHeader * hdr, http_hdr_type id) |
cb69b4c7 | 1141 | { |
9bea1d5b | 1142 | HttpHeaderEntry *e; |
1143 | assert_eid(id); | |
1144 | assert(Headers[id].type == ftStr); /* must be of an appropriate type */ | |
62e76326 | 1145 | |
9bea1d5b | 1146 | if ((e = httpHeaderFindEntry(hdr, id))) { |
62e76326 | 1147 | httpHeaderNoteParsedEntry(e->id, e->value, 0); /* no errors are possible */ |
1148 | return e->value.buf(); | |
d8b249ef | 1149 | } |
62e76326 | 1150 | |
9bea1d5b | 1151 | return NULL; |
cb69b4c7 | 1152 | } |
1153 | ||
a622fff0 | 1154 | /* unusual */ |
1155 | const char * | |
9bea1d5b | 1156 | httpHeaderGetLastStr(const HttpHeader * hdr, http_hdr_type id) |
a622fff0 | 1157 | { |
9bea1d5b | 1158 | HttpHeaderEntry *e; |
1159 | assert_eid(id); | |
1160 | assert(Headers[id].type == ftStr); /* must be of an appropriate type */ | |
62e76326 | 1161 | |
9bea1d5b | 1162 | if ((e = httpHeaderFindLastEntry(hdr, id))) { |
62e76326 | 1163 | httpHeaderNoteParsedEntry(e->id, e->value, 0); /* no errors are possible */ |
1164 | return e->value.buf(); | |
a622fff0 | 1165 | } |
62e76326 | 1166 | |
9bea1d5b | 1167 | return NULL; |
a622fff0 | 1168 | } |
1169 | ||
7faf2bdb | 1170 | HttpHdrCc * |
9bea1d5b | 1171 | httpHeaderGetCc(const HttpHeader * hdr) |
cb69b4c7 | 1172 | { |
9bea1d5b | 1173 | HttpHdrCc *cc; |
1174 | String s; | |
62e76326 | 1175 | |
9bea1d5b | 1176 | if (!CBIT_TEST(hdr->mask, HDR_CACHE_CONTROL)) |
62e76326 | 1177 | return NULL; |
1178 | ||
9bea1d5b | 1179 | s = httpHeaderGetList(hdr, HDR_CACHE_CONTROL); |
62e76326 | 1180 | |
9bea1d5b | 1181 | cc = httpHdrCcParseCreate(&s); |
62e76326 | 1182 | |
9bea1d5b | 1183 | HttpHeaderStats[hdr->owner].ccParsedCount++; |
62e76326 | 1184 | |
9bea1d5b | 1185 | if (cc) |
62e76326 | 1186 | httpHdrCcUpdateStats(cc, &HttpHeaderStats[hdr->owner].ccTypeDistr); |
1187 | ||
9bea1d5b | 1188 | httpHeaderNoteParsedEntry(HDR_CACHE_CONTROL, s, !cc); |
62e76326 | 1189 | |
528b2c61 | 1190 | s.clean(); |
62e76326 | 1191 | |
9bea1d5b | 1192 | return cc; |
cb69b4c7 | 1193 | } |
1194 | ||
02922e76 | 1195 | HttpHdrRange * |
9bea1d5b | 1196 | httpHeaderGetRange(const HttpHeader * hdr) |
02922e76 | 1197 | { |
9bea1d5b | 1198 | HttpHdrRange *r = NULL; |
1199 | HttpHeaderEntry *e; | |
1200 | /* some clients will send "Request-Range" _and_ *matching* "Range" | |
1201 | * who knows, some clients might send Request-Range only; | |
1202 | * this "if" should work correctly in both cases; | |
1203 | * hopefully no clients send mismatched headers! */ | |
62e76326 | 1204 | |
9bea1d5b | 1205 | if ((e = httpHeaderFindEntry(hdr, HDR_RANGE)) || |
62e76326 | 1206 | (e = httpHeaderFindEntry(hdr, HDR_REQUEST_RANGE))) { |
1207 | r = HttpHdrRange::ParseCreate(&e->value); | |
1208 | httpHeaderNoteParsedEntry(e->id, e->value, !r); | |
d192d11f | 1209 | } |
62e76326 | 1210 | |
9bea1d5b | 1211 | return r; |
02922e76 | 1212 | } |
1213 | ||
43ae1d95 | 1214 | HttpHdrSc * |
1215 | httpHeaderGetSc(const HttpHeader *hdr) | |
1216 | { | |
1217 | if (!CBIT_TEST(hdr->mask, HDR_SURROGATE_CONTROL)) | |
1218 | return NULL; | |
1219 | ||
1220 | String s (httpHeaderGetList(hdr, HDR_SURROGATE_CONTROL)); | |
1221 | ||
1222 | HttpHdrSc *sc = httpHdrScParseCreate(&s); | |
1223 | ||
1224 | HttpHeaderStats[hdr->owner].ccParsedCount++; | |
1225 | ||
1226 | if (sc) | |
1227 | httpHdrScUpdateStats(sc, &HttpHeaderStats[hdr->owner].scTypeDistr); | |
1228 | ||
1229 | httpHeaderNoteParsedEntry(HDR_SURROGATE_CONTROL, s, !sc); | |
1230 | ||
1231 | return sc; | |
1232 | } | |
1233 | ||
d76fcfa7 | 1234 | HttpHdrContRange * |
9bea1d5b | 1235 | httpHeaderGetContRange(const HttpHeader * hdr) |
d76fcfa7 | 1236 | { |
9bea1d5b | 1237 | HttpHdrContRange *cr = NULL; |
1238 | HttpHeaderEntry *e; | |
62e76326 | 1239 | |
9bea1d5b | 1240 | if ((e = httpHeaderFindEntry(hdr, HDR_CONTENT_RANGE))) { |
62e76326 | 1241 | cr = httpHdrContRangeParseCreate(e->value.buf()); |
1242 | httpHeaderNoteParsedEntry(e->id, e->value, !cr); | |
d8b249ef | 1243 | } |
62e76326 | 1244 | |
9bea1d5b | 1245 | return cr; |
cb69b4c7 | 1246 | } |
1247 | ||
99edd1c3 | 1248 | const char * |
9bea1d5b | 1249 | httpHeaderGetAuth(const HttpHeader * hdr, http_hdr_type id, const char *auth_scheme) |
cb69b4c7 | 1250 | { |
9bea1d5b | 1251 | const char *field; |
1252 | int l; | |
1253 | assert(hdr && auth_scheme); | |
1254 | field = httpHeaderGetStr(hdr, id); | |
62e76326 | 1255 | |
9bea1d5b | 1256 | if (!field) /* no authorization field */ |
62e76326 | 1257 | return NULL; |
1258 | ||
9bea1d5b | 1259 | l = strlen(auth_scheme); |
62e76326 | 1260 | |
9bea1d5b | 1261 | if (!l || strncasecmp(field, auth_scheme, l)) /* wrong scheme */ |
62e76326 | 1262 | return NULL; |
1263 | ||
9bea1d5b | 1264 | field += l; |
62e76326 | 1265 | |
9bea1d5b | 1266 | if (!xisspace(*field)) /* wrong scheme */ |
62e76326 | 1267 | return NULL; |
1268 | ||
9bea1d5b | 1269 | /* skip white space */ |
1270 | field += xcountws(field); | |
62e76326 | 1271 | |
9bea1d5b | 1272 | if (!*field) /* no authorization cookie */ |
62e76326 | 1273 | return NULL; |
1274 | ||
9bea1d5b | 1275 | return base64_decode(field); |
cb69b4c7 | 1276 | } |
1277 | ||
a9771e51 | 1278 | ETag |
9bea1d5b | 1279 | httpHeaderGetETag(const HttpHeader * hdr, http_hdr_type id) |
a9771e51 | 1280 | { |
9bea1d5b | 1281 | ETag etag = |
62e76326 | 1282 | {NULL, -1}; |
9bea1d5b | 1283 | HttpHeaderEntry *e; |
1284 | assert(Headers[id].type == ftETag); /* must be of an appropriate type */ | |
62e76326 | 1285 | |
9bea1d5b | 1286 | if ((e = httpHeaderFindEntry(hdr, id))) |
62e76326 | 1287 | etagParseInit(&etag, e->value.buf()); |
1288 | ||
9bea1d5b | 1289 | return etag; |
a9771e51 | 1290 | } |
1291 | ||
1292 | TimeOrTag | |
9bea1d5b | 1293 | httpHeaderGetTimeOrTag(const HttpHeader * hdr, http_hdr_type id) |
a9771e51 | 1294 | { |
9bea1d5b | 1295 | TimeOrTag tot; |
1296 | HttpHeaderEntry *e; | |
1297 | assert(Headers[id].type == ftDate_1123_or_ETag); /* must be of an appropriate type */ | |
1298 | memset(&tot, 0, sizeof(tot)); | |
62e76326 | 1299 | |
9bea1d5b | 1300 | if ((e = httpHeaderFindEntry(hdr, id))) { |
62e76326 | 1301 | const char *str = e->value.buf(); |
1302 | /* try as an ETag */ | |
1303 | ||
1304 | if (etagParseInit(&tot.tag, str)) { | |
1305 | tot.valid = tot.tag.str != NULL; | |
1306 | tot.time = -1; | |
1307 | } else { | |
1308 | /* or maybe it is time? */ | |
1309 | tot.time = parse_rfc1123(str); | |
1310 | tot.valid = tot.time >= 0; | |
1311 | tot.tag.str = NULL; | |
1312 | } | |
a9771e51 | 1313 | } |
62e76326 | 1314 | |
9bea1d5b | 1315 | assert(tot.time < 0 || !tot.tag.str); /* paranoid */ |
1316 | return tot; | |
a9771e51 | 1317 | } |
1318 | ||
cb69b4c7 | 1319 | /* |
1320 | * HttpHeaderEntry | |
1321 | */ | |
1322 | ||
d8b249ef | 1323 | static HttpHeaderEntry * |
9bea1d5b | 1324 | httpHeaderEntryCreate(http_hdr_type id, const char *name, const char *value) |
cb69b4c7 | 1325 | { |
9bea1d5b | 1326 | HttpHeaderEntry *e; |
1327 | assert_eid(id); | |
0353e724 | 1328 | e = new HttpHeaderEntry; |
9bea1d5b | 1329 | e->id = id; |
62e76326 | 1330 | |
9bea1d5b | 1331 | if (id != HDR_OTHER) |
62e76326 | 1332 | e->name = Headers[id].name; |
9bea1d5b | 1333 | else |
62e76326 | 1334 | e->name = name; |
1335 | ||
528b2c61 | 1336 | e->value = value; |
62e76326 | 1337 | |
9bea1d5b | 1338 | Headers[id].stat.aliveCount++; |
62e76326 | 1339 | |
528b2c61 | 1340 | debug(55, 9) ("created entry %p: '%s: %s'\n", e, e->name.buf(), e->value.buf()); |
62e76326 | 1341 | |
9bea1d5b | 1342 | return e; |
cb69b4c7 | 1343 | } |
1344 | ||
de336bbe | 1345 | static void |
9bea1d5b | 1346 | httpHeaderEntryDestroy(HttpHeaderEntry * e) |
2ac76861 | 1347 | { |
9bea1d5b | 1348 | assert(e); |
1349 | assert_eid(e->id); | |
528b2c61 | 1350 | debug(55, 9) ("destroying entry %p: '%s: %s'\n", e, e->name.buf(), e->value.buf()); |
9bea1d5b | 1351 | /* clean name if needed */ |
62e76326 | 1352 | |
9bea1d5b | 1353 | if (e->id == HDR_OTHER) |
62e76326 | 1354 | e->name.clean(); |
1355 | ||
528b2c61 | 1356 | e->value.clean(); |
62e76326 | 1357 | |
9bea1d5b | 1358 | assert(Headers[e->id].stat.aliveCount); |
62e76326 | 1359 | |
9bea1d5b | 1360 | Headers[e->id].stat.aliveCount--; |
62e76326 | 1361 | |
e6ccf245 | 1362 | e->id = HDR_BAD_HDR; |
62e76326 | 1363 | |
0353e724 | 1364 | delete e; |
cb69b4c7 | 1365 | } |
1366 | ||
d8b249ef | 1367 | /* parses and inits header entry, returns new entry on success */ |
1368 | static HttpHeaderEntry * | |
9bea1d5b | 1369 | httpHeaderEntryParseCreate(const char *field_start, const char *field_end) |
cb69b4c7 | 1370 | { |
9bea1d5b | 1371 | HttpHeaderEntry *e; |
e6ccf245 | 1372 | http_hdr_type id; |
9bea1d5b | 1373 | /* note: name_start == field_start */ |
52d3f198 | 1374 | const char *name_end = (const char *)memchr(field_start, ':', field_end - field_start); |
1375 | int name_len = name_end ? name_end - field_start : 0; | |
9bea1d5b | 1376 | const char *value_start = field_start + name_len + 1; /* skip ':' */ |
1377 | /* note: value_end == field_end */ | |
1378 | ||
1379 | HeaderEntryParsedCount++; | |
1380 | ||
1381 | /* do we have a valid field name within this field? */ | |
62e76326 | 1382 | |
9bea1d5b | 1383 | if (!name_len || name_end > field_end) |
62e76326 | 1384 | return NULL; |
1385 | ||
67746eea | 1386 | if (name_len > 65534) { |
1387 | /* String must be LESS THAN 64K and it adds a terminating NULL */ | |
62e76326 | 1388 | debug(55, 1) ("WARNING: ignoring header name of %d bytes\n", name_len); |
1389 | return NULL; | |
25acfb53 | 1390 | } |
62e76326 | 1391 | |
52d3f198 | 1392 | if (Config.onoff.relaxed_header_parser && xisspace(field_start[name_len - 1])) { |
1393 | debug(55, Config.onoff.relaxed_header_parser <= 0 ? 1 : 2) | |
1394 | ("NOTICE: Whitespace after header name in '%s'\n", getStringPrefix(field_start, field_end)); | |
1395 | ||
1396 | while (name_len > 0 && xisspace(field_start[name_len - 1])) | |
1397 | name_len--; | |
1398 | ||
1399 | if (!name_len) | |
1400 | return NULL; | |
1401 | } | |
1402 | ||
9bea1d5b | 1403 | /* now we know we can parse it */ |
0353e724 | 1404 | e = new HttpHeaderEntry; |
62e76326 | 1405 | |
9bea1d5b | 1406 | debug(55, 9) ("creating entry %p: near '%s'\n", e, getStringPrefix(field_start, field_end)); |
62e76326 | 1407 | |
9bea1d5b | 1408 | /* is it a "known" field? */ |
1409 | id = httpHeaderIdByName(field_start, name_len, Headers, HDR_ENUM_END); | |
62e76326 | 1410 | |
9bea1d5b | 1411 | if (id < 0) |
62e76326 | 1412 | id = HDR_OTHER; |
1413 | ||
9bea1d5b | 1414 | assert_eid(id); |
62e76326 | 1415 | |
9bea1d5b | 1416 | e->id = id; |
62e76326 | 1417 | |
9bea1d5b | 1418 | /* set field name */ |
1419 | if (id == HDR_OTHER) | |
62e76326 | 1420 | e->name.limitInit(field_start, name_len); |
9bea1d5b | 1421 | else |
62e76326 | 1422 | e->name = Headers[id].name; |
1423 | ||
9bea1d5b | 1424 | /* trim field value */ |
1425 | while (value_start < field_end && xisspace(*value_start)) | |
62e76326 | 1426 | value_start++; |
1427 | ||
52d3f198 | 1428 | while (value_start < field_end && xisspace(field_end[-1])) |
1429 | field_end--; | |
1430 | ||
67746eea | 1431 | if (field_end - value_start > 65534) { |
1432 | /* String must be LESS THAN 64K and it adds a terminating NULL */ | |
62e76326 | 1433 | debug(55, 1) ("WARNING: ignoring '%s' header of %d bytes\n", |
1434 | e->name.buf(), (int) (field_end - value_start)); | |
1435 | ||
1436 | if (e->id == HDR_OTHER) | |
1437 | e->name.clean(); | |
1438 | ||
0353e724 | 1439 | delete e; |
62e76326 | 1440 | |
1441 | return NULL; | |
25acfb53 | 1442 | } |
62e76326 | 1443 | |
9bea1d5b | 1444 | /* set field value */ |
528b2c61 | 1445 | e->value.limitInit(value_start, field_end - value_start); |
62e76326 | 1446 | |
9bea1d5b | 1447 | Headers[id].stat.seenCount++; |
62e76326 | 1448 | |
9bea1d5b | 1449 | Headers[id].stat.aliveCount++; |
62e76326 | 1450 | |
528b2c61 | 1451 | debug(55, 9) ("created entry %p: '%s: %s'\n", e, e->name.buf(), e->value.buf()); |
62e76326 | 1452 | |
9bea1d5b | 1453 | return e; |
cb69b4c7 | 1454 | } |
1455 | ||
99edd1c3 | 1456 | HttpHeaderEntry * |
9bea1d5b | 1457 | httpHeaderEntryClone(const HttpHeaderEntry * e) |
cb69b4c7 | 1458 | { |
528b2c61 | 1459 | return httpHeaderEntryCreate(e->id, e->name.buf(), e->value.buf()); |
cb69b4c7 | 1460 | } |
1461 | ||
de336bbe | 1462 | void |
9bea1d5b | 1463 | httpHeaderEntryPackInto(const HttpHeaderEntry * e, Packer * p) |
cb69b4c7 | 1464 | { |
9bea1d5b | 1465 | assert(e && p); |
528b2c61 | 1466 | packerAppend(p, e->name.buf(), e->name.size()); |
9bea1d5b | 1467 | packerAppend(p, ": ", 2); |
528b2c61 | 1468 | packerAppend(p, e->value.buf(), e->value.size()); |
9bea1d5b | 1469 | packerAppend(p, "\r\n", 2); |
cb69b4c7 | 1470 | } |
1471 | ||
1472 | static void | |
9bea1d5b | 1473 | httpHeaderNoteParsedEntry(http_hdr_type id, String context, int error) |
cb69b4c7 | 1474 | { |
9bea1d5b | 1475 | Headers[id].stat.parsCount++; |
62e76326 | 1476 | |
9bea1d5b | 1477 | if (error) { |
62e76326 | 1478 | Headers[id].stat.errCount++; |
1479 | debug(55, 2) ("cannot parse hdr field: '%s: %s'\n", | |
1480 | Headers[id].name.buf(), context.buf()); | |
cb69b4c7 | 1481 | } |
cb69b4c7 | 1482 | } |
1483 | ||
cb69b4c7 | 1484 | /* |
12cf1be2 | 1485 | * Reports |
cb69b4c7 | 1486 | */ |
cb69b4c7 | 1487 | |
fcd2d3ef | 1488 | /* tmp variable used to pass stat info to dumpers */ |
0cdcddb9 | 1489 | extern const HttpHeaderStat *dump_stat; /* argh! */ |
fcd2d3ef | 1490 | const HttpHeaderStat *dump_stat = NULL; |
1491 | ||
cb69b4c7 | 1492 | static void |
9bea1d5b | 1493 | httpHeaderFieldStatDumper(StoreEntry * sentry, int idx, double val, double size, int count) |
cb69b4c7 | 1494 | { |
9bea1d5b | 1495 | const int id = (int) val; |
1496 | const int valid_id = id >= 0 && id < HDR_ENUM_END; | |
528b2c61 | 1497 | const char *name = valid_id ? Headers[id].name.buf() : "INVALID"; |
9bea1d5b | 1498 | int visible = count > 0; |
1499 | /* for entries with zero count, list only those that belong to current type of message */ | |
62e76326 | 1500 | |
9bea1d5b | 1501 | if (!visible && valid_id && dump_stat->owner_mask) |
62e76326 | 1502 | visible = CBIT_TEST(*dump_stat->owner_mask, id); |
1503 | ||
9bea1d5b | 1504 | if (visible) |
62e76326 | 1505 | storeAppendPrintf(sentry, "%2d\t %-20s\t %5d\t %6.2f\n", |
1506 | id, name, count, xdiv(count, dump_stat->busyDestroyedCount)); | |
cb69b4c7 | 1507 | } |
1508 | ||
12cf1be2 | 1509 | static void |
9bea1d5b | 1510 | httpHeaderFldsPerHdrDumper(StoreEntry * sentry, int idx, double val, double size, int count) |
cb69b4c7 | 1511 | { |
9bea1d5b | 1512 | if (count) |
62e76326 | 1513 | storeAppendPrintf(sentry, "%2d\t %5d\t %5d\t %6.2f\n", |
1514 | idx, (int) val, count, | |
1515 | xpercent(count, dump_stat->destroyedCount)); | |
cb69b4c7 | 1516 | } |
1517 | ||
1518 | ||
1519 | static void | |
9bea1d5b | 1520 | httpHeaderStatDump(const HttpHeaderStat * hs, StoreEntry * e) |
12cf1be2 | 1521 | { |
9bea1d5b | 1522 | assert(hs && e); |
1523 | ||
1524 | dump_stat = hs; | |
1525 | storeAppendPrintf(e, "\nHeader Stats: %s\n", hs->label); | |
1526 | storeAppendPrintf(e, "\nField type distribution\n"); | |
1527 | storeAppendPrintf(e, "%2s\t %-20s\t %5s\t %6s\n", | |
62e76326 | 1528 | "id", "name", "count", "#/header"); |
9bea1d5b | 1529 | statHistDump(&hs->fieldTypeDistr, e, httpHeaderFieldStatDumper); |
1530 | storeAppendPrintf(e, "\nCache-control directives distribution\n"); | |
1531 | storeAppendPrintf(e, "%2s\t %-20s\t %5s\t %6s\n", | |
62e76326 | 1532 | "id", "name", "count", "#/cc_field"); |
9bea1d5b | 1533 | statHistDump(&hs->ccTypeDistr, e, httpHdrCcStatDumper); |
43ae1d95 | 1534 | storeAppendPrintf(e, "\nSurrogate-control directives distribution\n"); |
1535 | storeAppendPrintf(e, "%2s\t %-20s\t %5s\t %6s\n", | |
1536 | "id", "name", "count", "#/sc_field"); | |
1537 | statHistDump(&hs->scTypeDistr, e, httpHdrScStatDumper); | |
9bea1d5b | 1538 | storeAppendPrintf(e, "\nNumber of fields per header distribution\n"); |
1539 | storeAppendPrintf(e, "%2s\t %-5s\t %5s\t %6s\n", | |
62e76326 | 1540 | "id", "#flds", "count", "%total"); |
9bea1d5b | 1541 | statHistDump(&hs->hdrUCountDistr, e, httpHeaderFldsPerHdrDumper); |
1542 | dump_stat = NULL; | |
cb69b4c7 | 1543 | } |
1544 | ||
12cf1be2 | 1545 | void |
9bea1d5b | 1546 | httpHeaderStoreReport(StoreEntry * e) |
cb69b4c7 | 1547 | { |
9bea1d5b | 1548 | int i; |
1549 | http_hdr_type ht; | |
1550 | assert(e); | |
1551 | ||
1552 | HttpHeaderStats[0].parsedCount = | |
62e76326 | 1553 | HttpHeaderStats[hoRequest].parsedCount + HttpHeaderStats[hoReply].parsedCount; |
9bea1d5b | 1554 | HttpHeaderStats[0].ccParsedCount = |
62e76326 | 1555 | HttpHeaderStats[hoRequest].ccParsedCount + HttpHeaderStats[hoReply].ccParsedCount; |
9bea1d5b | 1556 | HttpHeaderStats[0].destroyedCount = |
62e76326 | 1557 | HttpHeaderStats[hoRequest].destroyedCount + HttpHeaderStats[hoReply].destroyedCount; |
9bea1d5b | 1558 | HttpHeaderStats[0].busyDestroyedCount = |
62e76326 | 1559 | HttpHeaderStats[hoRequest].busyDestroyedCount + HttpHeaderStats[hoReply].busyDestroyedCount; |
9bea1d5b | 1560 | |
1561 | for (i = 1; i < HttpHeaderStatCount; i++) { | |
62e76326 | 1562 | httpHeaderStatDump(HttpHeaderStats + i, e); |
1563 | storeAppendPrintf(e, "%s\n", "<br>"); | |
12cf1be2 | 1564 | } |
62e76326 | 1565 | |
9bea1d5b | 1566 | /* field stats for all messages */ |
1567 | storeAppendPrintf(e, "\nHttp Fields Stats (replies and requests)\n"); | |
62e76326 | 1568 | |
9bea1d5b | 1569 | storeAppendPrintf(e, "%2s\t %-20s\t %5s\t %6s\t %6s\n", |
62e76326 | 1570 | "id", "name", "#alive", "%err", "%repeat"); |
1571 | ||
e6ccf245 | 1572 | for (ht = (http_hdr_type)0; ht < HDR_ENUM_END; ++ht) { |
62e76326 | 1573 | HttpHeaderFieldInfo *f = Headers + ht; |
1574 | storeAppendPrintf(e, "%2d\t %-20s\t %5d\t %6.3f\t %6.3f\n", | |
1575 | f->id, f->name.buf(), f->stat.aliveCount, | |
1576 | xpercent(f->stat.errCount, f->stat.parsCount), | |
1577 | xpercent(f->stat.repCount, f->stat.seenCount)); | |
12cf1be2 | 1578 | } |
62e76326 | 1579 | |
9bea1d5b | 1580 | storeAppendPrintf(e, "Headers Parsed: %d + %d = %d\n", |
62e76326 | 1581 | HttpHeaderStats[hoRequest].parsedCount, |
1582 | HttpHeaderStats[hoReply].parsedCount, | |
1583 | HttpHeaderStats[0].parsedCount); | |
9bea1d5b | 1584 | storeAppendPrintf(e, "Hdr Fields Parsed: %d\n", HeaderEntryParsedCount); |
cb69b4c7 | 1585 | } |
97474590 | 1586 | |
e6ccf245 | 1587 | http_hdr_type |
9bea1d5b | 1588 | httpHeaderIdByName(const char *name, int name_len, const HttpHeaderFieldInfo * info, int end) |
97474590 | 1589 | { |
9bea1d5b | 1590 | int i; |
62e76326 | 1591 | |
9bea1d5b | 1592 | for (i = 0; i < end; ++i) { |
62e76326 | 1593 | if (name_len >= 0 && name_len != info[i].name.size()) |
1594 | continue; | |
1595 | ||
1596 | if (!strncasecmp(name, info[i].name.buf(), | |
1597 | name_len < 0 ? info[i].name.size() + 1 : name_len)) | |
1598 | return info[i].id; | |
97474590 | 1599 | } |
62e76326 | 1600 | |
e6ccf245 | 1601 | return HDR_BAD_HDR; |
97474590 | 1602 | } |
1603 | ||
e6ccf245 | 1604 | http_hdr_type |
9bea1d5b | 1605 | httpHeaderIdByNameDef(const char *name, int name_len) |
97474590 | 1606 | { |
9bea1d5b | 1607 | if (!Headers) |
62e76326 | 1608 | Headers = httpHeaderBuildFieldsInfo(HeadersAttrs, HDR_ENUM_END); |
1609 | ||
9bea1d5b | 1610 | return httpHeaderIdByName(name, name_len, Headers, HDR_ENUM_END); |
97474590 | 1611 | } |
efd900cb | 1612 | |
1613 | const char * | |
9bea1d5b | 1614 | httpHeaderNameById(int id) |
efd900cb | 1615 | { |
9bea1d5b | 1616 | if (!Headers) |
62e76326 | 1617 | Headers = httpHeaderBuildFieldsInfo(HeadersAttrs, HDR_ENUM_END); |
1618 | ||
9bea1d5b | 1619 | assert(id >= 0 && id < HDR_ENUM_END); |
62e76326 | 1620 | |
849b826a | 1621 | return Headers[id].name.buf(); |
efd900cb | 1622 | } |
0353e724 | 1623 | |
924f73bc | 1624 | int |
1625 | httpHeaderHasListMember(const HttpHeader * hdr, http_hdr_type id, const char *member, const char separator) | |
1626 | { | |
1627 | int result = 0; | |
1628 | const char *pos = NULL; | |
1629 | const char *item; | |
1630 | int ilen; | |
1631 | int mlen = strlen(member); | |
1632 | ||
1633 | assert(hdr); | |
1634 | assert(id >= 0); | |
1635 | ||
1636 | String header (httpHeaderGetStrOrList(hdr, id)); | |
1637 | ||
9d0cdbb9 | 1638 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { |
1639 | if (strncmp(item, member, mlen) == 0 | |
1640 | && (item[mlen] == '=' || item[mlen] == separator || item[mlen] == ';' || item[mlen] == '\0')) { | |
1641 | result = 1; | |
1642 | break; | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | return result; | |
1647 | } | |
1648 | ||
1649 | int | |
1650 | httpHeaderHasByNameListMember(const HttpHeader * hdr, const char *name, const char *member, const char separator) | |
1651 | { | |
1652 | int result = 0; | |
1653 | const char *pos = NULL; | |
1654 | const char *item; | |
1655 | int ilen; | |
1656 | int mlen = strlen(member); | |
1657 | ||
1658 | assert(hdr); | |
1659 | assert(name); | |
1660 | ||
1661 | String header (httpHeaderGetByName(hdr, name)); | |
1662 | ||
924f73bc | 1663 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { |
1664 | if (strncmp(item, member, mlen) == 0 | |
1665 | && (item[mlen] == '=' || item[mlen] == separator || item[mlen] == ';' || item[mlen] == '\0')) { | |
1666 | result = 1; | |
1667 | break; | |
1668 | } | |
1669 | } | |
1670 | ||
1671 | return result; | |
1672 | } | |
1673 | ||
1674 | void | |
1675 | HttpHeader::removeConnectionHeaderEntries() | |
1676 | { | |
1677 | if (httpHeaderHas(this, HDR_CONNECTION)) { | |
1678 | /* anything that matches Connection list member will be deleted */ | |
1679 | String strConnection = httpHeaderGetList(this, HDR_CONNECTION); | |
1680 | const HttpHeaderEntry *e; | |
1681 | HttpHeaderPos pos = HttpHeaderInitPos; | |
1682 | /* | |
1683 | * think: on-average-best nesting of the two loops (hdrEntry | |
1684 | * and strListItem) @?@ | |
1685 | */ | |
1686 | /* | |
1687 | * maybe we should delete standard stuff ("keep-alive","close") | |
1688 | * from strConnection first? | |
1689 | */ | |
1690 | ||
1691 | while ((e = httpHeaderGetEntry(this, &pos))) { | |
1692 | if (strListIsMember(&strConnection, e->name.buf(), ',')) | |
1693 | httpHeaderDelAt(this, pos); | |
1694 | } | |
1695 | ||
1696 | httpHeaderDelById(this, HDR_CONNECTION); | |
1697 | strConnection.clean(); | |
1698 | } | |
1699 | } |