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Commit | Line | Data |
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cb69b4c7 | 1 | /* |
ef57eb7b | 2 | * Copyright (C) 1996-2016 The Squid Software Foundation and contributors |
cb69b4c7 | 3 | * |
bbc27441 AJ |
4 | * Squid software is distributed under GPLv2+ license and includes |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
cb69b4c7 | 7 | */ |
8 | ||
bbc27441 AJ |
9 | /* DEBUG: section 55 HTTP Header */ |
10 | ||
582c2af2 | 11 | #include "squid.h" |
81ab22b6 | 12 | #include "base/EnumIterator.h" |
25f98340 | 13 | #include "base64.h" |
67679543 | 14 | #include "globals.h" |
7ebe76de | 15 | #include "HttpHdrCc.h" |
582c2af2 | 16 | #include "HttpHdrContRange.h" |
1da82544 | 17 | #include "HttpHdrScTarget.h" // also includes HttpHdrSc.h |
8822ebee | 18 | #include "HttpHeader.h" |
79cb238d | 19 | #include "HttpHeaderFieldInfo.h" |
e1656dc4 | 20 | #include "HttpHeaderStat.h" |
a5bac1d2 | 21 | #include "HttpHeaderTools.h" |
0eb49b6d | 22 | #include "MemBuf.h" |
8822ebee | 23 | #include "mgr/Registration.h" |
582c2af2 | 24 | #include "profiler/Profiler.h" |
25f98340 | 25 | #include "rfc1123.h" |
602d9612 | 26 | #include "SquidConfig.h" |
00a7574e | 27 | #include "StatHist.h" |
8822ebee | 28 | #include "Store.h" |
28204b3b | 29 | #include "StrList.h" |
81a94152 | 30 | #include "TimeOrTag.h" |
ed6e9fb9 | 31 | #include "util.h" |
cb69b4c7 | 32 | |
42865d25 FC |
33 | #include <algorithm> |
34 | ||
6fda1515 FC |
35 | /* XXX: the whole set of API managing the entries vector should be rethought |
36 | * after the parse4r-ng effort is complete. | |
37 | */ | |
38 | ||
cb69b4c7 | 39 | /* |
2ac76861 | 40 | * On naming conventions: |
26ac0430 AJ |
41 | * |
42 | * HTTP/1.1 defines message-header as | |
43 | * | |
2ac76861 | 44 | * message-header = field-name ":" [ field-value ] CRLF |
45 | * field-name = token | |
46 | * field-value = *( field-content | LWS ) | |
26ac0430 | 47 | * |
2ac76861 | 48 | * HTTP/1.1 does not give a name name a group of all message-headers in a message. |
49 | * Squid 1.1 seems to refer to that group _plus_ start-line as "headers". | |
26ac0430 | 50 | * |
2ac76861 | 51 | * HttpHeader is an object that represents all message-headers in a message. |
52 | * HttpHeader does not manage start-line. | |
26ac0430 | 53 | * |
d8b249ef | 54 | * HttpHeader is implemented as a collection of header "entries". |
55 | * An entry is a (field_id, field_name, field_value) triplet. | |
2ac76861 | 56 | */ |
cb69b4c7 | 57 | |
cb69b4c7 | 58 | /* |
59 | * local constants and vars | |
60 | */ | |
61 | ||
789217a2 | 62 | // statistics counters for headers. clients must not allow Http::HdrType::BAD_HDR to be counted |
81ab22b6 | 63 | std::vector<HttpHeaderFieldStat> headerStatsTable(Http::HdrType::enumEnd_); |
cb69b4c7 | 64 | |
81ab22b6 | 65 | /* request-only headers. Used for cachemgr */ |
f53969cc | 66 | static HttpHeaderMask RequestHeadersMask; /* set run-time using RequestHeaders */ |
16d3204a | 67 | |
81ab22b6 | 68 | /* reply-only headers. Used for cachemgr */ |
f53969cc | 69 | static HttpHeaderMask ReplyHeadersMask; /* set run-time using ReplyHeaders */ |
2cdeea82 | 70 | |
12cf1be2 | 71 | /* header accounting */ |
26735116 | 72 | // NP: keep in sync with enum http_hdr_owner_type |
26ac0430 | 73 | static HttpHeaderStat HttpHeaderStats[] = { |
95cc1e3e | 74 | HttpHeaderStat(/*hoNone*/ "all", NULL), |
9f4d4f65 | 75 | #if USE_HTCP |
95cc1e3e | 76 | HttpHeaderStat(/*hoHtcpReply*/ "HTCP reply", &ReplyHeadersMask), |
9f4d4f65 | 77 | #endif |
95cc1e3e FC |
78 | HttpHeaderStat(/*hoRequest*/ "request", &RequestHeadersMask), |
79 | HttpHeaderStat(/*hoReply*/ "reply", &ReplyHeadersMask) | |
26735116 AJ |
80 | #if USE_OPENSSL |
81 | /* hoErrorDetail */ | |
82 | #endif | |
83 | /* hoEnd */ | |
26ac0430 | 84 | }; |
9bea1d5b | 85 | static int HttpHeaderStatCount = countof(HttpHeaderStats); |
12cf1be2 | 86 | |
7faf2bdb | 87 | static int HeaderEntryParsedCount = 0; |
cb69b4c7 | 88 | |
12cf1be2 | 89 | /* |
f734cda2 | 90 | * forward declarations and local routines |
12cf1be2 | 91 | */ |
cb69b4c7 | 92 | |
f734cda2 | 93 | class StoreEntry; |
cb69b4c7 | 94 | |
81ab22b6 FC |
95 | // update parse statistics for header id; if error is true also account |
96 | // for errors and write to debug log what happened | |
97 | static void httpHeaderNoteParsedEntry(Http::HdrType id, String const &value, bool error); | |
73b2aa87 | 98 | static void httpHeaderStatDump(const HttpHeaderStat * hs, StoreEntry * e); |
f734cda2 FC |
99 | /** store report about current header usage and other stats */ |
100 | static void httpHeaderStoreReport(StoreEntry * e); | |
101 | ||
cb69b4c7 | 102 | /* |
103 | * Module initialization routines | |
104 | */ | |
105 | ||
6b7d87bb FC |
106 | static void |
107 | httpHeaderRegisterWithCacheManager(void) | |
108 | { | |
8822ebee | 109 | Mgr::RegisterAction("http_headers", |
d9fc6862 A |
110 | "HTTP Header Statistics", |
111 | httpHeaderStoreReport, 0, 1); | |
6b7d87bb FC |
112 | } |
113 | ||
cb69b4c7 | 114 | void |
9bea1d5b | 115 | httpHeaderInitModule(void) |
cb69b4c7 | 116 | { |
9bea1d5b | 117 | /* check that we have enough space for masks */ |
81ab22b6 FC |
118 | assert(8 * sizeof(HttpHeaderMask) >= Http::HdrType::enumEnd_); |
119 | ||
120 | // masks are needed for stats page still | |
121 | for (auto h : WholeEnum<Http::HdrType>()) { | |
122 | if (Http::HeaderLookupTable.lookup(h).request) | |
123 | CBIT_SET(RequestHeadersMask,h); | |
124 | if (Http::HeaderLookupTable.lookup(h).reply) | |
125 | CBIT_SET(ReplyHeadersMask,h); | |
126 | } | |
dcf3665b | 127 | |
26735116 | 128 | /* header stats initialized by class constructor */ |
9bea1d5b | 129 | assert(HttpHeaderStatCount == hoReply + 1); |
16d3204a | 130 | |
9bea1d5b | 131 | /* init dependent modules */ |
132 | httpHdrCcInitModule(); | |
43ae1d95 | 133 | httpHdrScInitModule(); |
ea391f18 FC |
134 | |
135 | httpHeaderRegisterWithCacheManager(); | |
62ee09ca | 136 | } |
43ae1d95 | 137 | |
cb69b4c7 | 138 | /* |
139 | * HttpHeader Implementation | |
140 | */ | |
141 | ||
3e42b356 | 142 | HttpHeader::HttpHeader() : owner (hoNone), len (0), conflictingContentLength_(false) |
cb69b4c7 | 143 | { |
75faaa7a | 144 | httpHeaderMaskInit(&mask, 0); |
145 | } | |
146 | ||
3e42b356 | 147 | HttpHeader::HttpHeader(const http_hdr_owner_type anOwner): owner(anOwner), len(0), conflictingContentLength_(false) |
75faaa7a | 148 | { |
02259ff8 | 149 | assert(anOwner > hoNone && anOwner < hoEnd); |
efc26e8e | 150 | debugs(55, 7, "init-ing hdr: " << this << " owner: " << owner); |
75faaa7a | 151 | httpHeaderMaskInit(&mask, 0); |
152 | } | |
153 | ||
3e42b356 | 154 | HttpHeader::HttpHeader(const HttpHeader &other): owner(other.owner), len(other.len), conflictingContentLength_(false) |
5e5fa5b1 AR |
155 | { |
156 | httpHeaderMaskInit(&mask, 0); | |
2d4f252d | 157 | update(&other); // will update the mask as well |
5e5fa5b1 AR |
158 | } |
159 | ||
75faaa7a | 160 | HttpHeader::~HttpHeader() |
161 | { | |
519e0948 | 162 | clean(); |
cb69b4c7 | 163 | } |
164 | ||
5e5fa5b1 AR |
165 | HttpHeader & |
166 | HttpHeader::operator =(const HttpHeader &other) | |
167 | { | |
168 | if (this != &other) { | |
169 | // we do not really care, but the caller probably does | |
170 | assert(owner == other.owner); | |
171 | clean(); | |
2d4f252d | 172 | update(&other); // will update the mask as well |
5e5fa5b1 | 173 | len = other.len; |
3e42b356 | 174 | conflictingContentLength_ = other.conflictingContentLength_; |
5e5fa5b1 AR |
175 | } |
176 | return *this; | |
177 | } | |
178 | ||
cb69b4c7 | 179 | void |
519e0948 | 180 | HttpHeader::clean() |
cb69b4c7 | 181 | { |
9bea1d5b | 182 | |
02259ff8 | 183 | assert(owner > hoNone && owner < hoEnd); |
efc26e8e | 184 | debugs(55, 7, "cleaning hdr: " << this << " owner: " << owner); |
9bea1d5b | 185 | |
3a9cf2d5 | 186 | PROF_start(HttpHeaderClean); |
187 | ||
0de73a38 | 188 | if (owner <= hoReply) { |
c594d76c A |
189 | /* |
190 | * An unfortunate bug. The entries array is initialized | |
191 | * such that count is set to zero. httpHeaderClean() seems to | |
192 | * be called both when 'hdr' is created, and destroyed. Thus, | |
193 | * we accumulate a large number of zero counts for 'hdr' before | |
194 | * it is ever used. Can't think of a good way to fix it, except | |
195 | * adding a state variable that indicates whether or not 'hdr' | |
196 | * has been used. As a hack, just never count zero-sized header | |
197 | * arrays. | |
198 | */ | |
4c9eadc2 FC |
199 | if (!entries.empty()) |
200 | HttpHeaderStats[owner].hdrUCountDistr.count(entries.size()); | |
51328da8 | 201 | |
95dc7ff4 | 202 | ++ HttpHeaderStats[owner].destroyedCount; |
51328da8 | 203 | |
4c9eadc2 | 204 | HttpHeaderStats[owner].busyDestroyedCount += entries.size() > 0; |
0de73a38 | 205 | } // if (owner <= hoReply) |
62e76326 | 206 | |
81ab22b6 | 207 | for (HttpHeaderEntry *e : entries) { |
1da82544 | 208 | if (e == nullptr) |
6fda1515 | 209 | continue; |
1da82544 | 210 | if (!Http::any_valid_header(e->id)) { |
6fda1515 | 211 | debugs(55, DBG_CRITICAL, "BUG: invalid entry (" << e->id << "). Ignored."); |
c594d76c A |
212 | } else { |
213 | if (owner <= hoReply) | |
f30f7998 | 214 | HttpHeaderStats[owner].fieldTypeDistr.count(e->id); |
c594d76c | 215 | delete e; |
62e76326 | 216 | } |
c594d76c | 217 | } |
6fda1515 | 218 | |
c33a88ca | 219 | entries.clear(); |
519e0948 | 220 | httpHeaderMaskInit(&mask, 0); |
5e5fa5b1 | 221 | len = 0; |
3e42b356 | 222 | conflictingContentLength_ = false; |
3a9cf2d5 | 223 | PROF_stop(HttpHeaderClean); |
cb69b4c7 | 224 | } |
225 | ||
2246b732 | 226 | /* append entries (also see httpHeaderUpdate) */ |
227 | void | |
a9925b40 | 228 | HttpHeader::append(const HttpHeader * src) |
2246b732 | 229 | { |
a9925b40 | 230 | assert(src); |
231 | assert(src != this); | |
efc26e8e | 232 | debugs(55, 7, "appending hdr: " << this << " += " << src); |
9bea1d5b | 233 | |
81ab22b6 FC |
234 | for (auto e : src->entries) { |
235 | if (e) | |
236 | addEntry(e->clone()); | |
2246b732 | 237 | } |
238 | } | |
239 | ||
1a210de4 EB |
240 | /// check whether the fresh header has any new/changed updatable fields |
241 | bool | |
242 | HttpHeader::needUpdate(HttpHeader const *fresh) const | |
243 | { | |
244 | for (const auto e: fresh->entries) { | |
245 | if (skipUpdateHeader(e->id)) | |
246 | continue; | |
247 | String value; | |
248 | const char *name = e->name.termedBuf(); | |
249 | if (!getByNameIfPresent(name, strlen(name), value) || | |
250 | (value != fresh->getByName(name))) | |
251 | return true; | |
252 | } | |
253 | return false; | |
254 | } | |
255 | ||
924f73bc | 256 | void |
2d4f252d EB |
257 | HttpHeader::updateWarnings() |
258 | { | |
259 | int count = 0; | |
260 | HttpHeaderPos pos = HttpHeaderInitPos; | |
261 | ||
262 | // RFC 7234, section 4.3.4: delete 1xx warnings and retain 2xx warnings | |
263 | while (HttpHeaderEntry *e = getEntry(&pos)) { | |
264 | if (e->id == Http::HdrType::WARNING && (e->getInt()/100 == 1) ) | |
265 | delAt(pos, count); | |
266 | } | |
267 | } | |
268 | ||
269 | bool | |
270 | HttpHeader::skipUpdateHeader(const Http::HdrType id) const | |
271 | { | |
272 | // RFC 7234, section 4.3.4: use fields other from Warning for update | |
273 | return id == Http::HdrType::WARNING; | |
274 | } | |
275 | ||
1a210de4 | 276 | bool |
2d4f252d | 277 | HttpHeader::update(HttpHeader const *fresh) |
cb69b4c7 | 278 | { |
a9925b40 | 279 | assert(fresh); |
924f73bc | 280 | assert(this != fresh); |
9bea1d5b | 281 | |
1a210de4 EB |
282 | // Optimization: Finding whether a header field changed is expensive |
283 | // and probably not worth it except for collapsed revalidation needs. | |
284 | if (Config.onoff.collapsed_forwarding && !needUpdate(fresh)) | |
285 | return false; | |
286 | ||
2d4f252d EB |
287 | updateWarnings(); |
288 | ||
1a210de4 EB |
289 | const HttpHeaderEntry *e; |
290 | HttpHeaderPos pos = HttpHeaderInitPos; | |
291 | ||
a9925b40 | 292 | while ((e = fresh->getEntry(&pos))) { |
789217a2 | 293 | /* deny bad guys (ok to check for Http::HdrType::OTHER) here */ |
62e76326 | 294 | |
2d4f252d | 295 | if (skipUpdateHeader(e->id)) |
62e76326 | 296 | continue; |
297 | ||
789217a2 | 298 | if (e->id != Http::HdrType::OTHER) |
ba9fb01d | 299 | delById(e->id); |
300 | else | |
9d7a89a5 | 301 | delByName(e->name.termedBuf()); |
9917847f | 302 | } |
303 | ||
304 | pos = HttpHeaderInitPos; | |
305 | while ((e = fresh->getEntry(&pos))) { | |
789217a2 | 306 | /* deny bad guys (ok to check for Http::HdrType::OTHER) here */ |
9917847f | 307 | |
2d4f252d | 308 | if (skipUpdateHeader(e->id)) |
9917847f | 309 | continue; |
310 | ||
81ab22b6 | 311 | debugs(55, 7, "Updating header '" << Http::HeaderLookupTable.lookup(e->id).name << "' in cached entry"); |
62e76326 | 312 | |
eede25e7 | 313 | addEntry(e->clone()); |
cb69b4c7 | 314 | } |
1a210de4 | 315 | return true; |
cb69b4c7 | 316 | } |
317 | ||
cb69b4c7 | 318 | int |
784619e6 | 319 | HttpHeader::parse(const char *header_start, size_t hdrLen) |
cb69b4c7 | 320 | { |
52d3f198 | 321 | const char *field_ptr = header_start; |
784619e6 | 322 | const char *header_end = header_start + hdrLen; // XXX: remove |
52d3f198 | 323 | HttpHeaderEntry *e, *e2; |
56cd29e6 | 324 | int warnOnError = (Config.onoff.relaxed_header_parser <= 0 ? DBG_IMPORTANT : 2); |
9bea1d5b | 325 | |
3a9cf2d5 | 326 | PROF_start(HttpHeaderParse); |
327 | ||
9bea1d5b | 328 | assert(header_start && header_end); |
81858ebc | 329 | debugs(55, 7, "parsing hdr: (" << this << ")" << std::endl << getStringPrefix(header_start, hdrLen)); |
95dc7ff4 | 330 | ++ HttpHeaderStats[owner].parsedCount; |
62e76326 | 331 | |
1d8a896b | 332 | char *nulpos; |
784619e6 | 333 | if ((nulpos = (char*)memchr(header_start, '\0', hdrLen))) { |
e0236918 | 334 | debugs(55, DBG_IMPORTANT, "WARNING: HTTP header contains NULL characters {" << |
81858ebc | 335 | getStringPrefix(header_start, nulpos-header_start) << "}\nNULL\n{" << getStringPrefix(nulpos+1, hdrLen-(nulpos-header_start)-1)); |
6d7bc97b | 336 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
337 | clean(); |
338 | return 0; | |
52d3f198 | 339 | } |
340 | ||
341 | /* common format headers are "<name>:[ws]<value>" lines delimited by <CRLF>. | |
342 | * continuation lines start with a (single) space or tab */ | |
343 | while (field_ptr < header_end) { | |
344 | const char *field_start = field_ptr; | |
62e76326 | 345 | const char *field_end; |
62e76326 | 346 | |
347 | do { | |
52d3f198 | 348 | const char *this_line = field_ptr; |
349 | field_ptr = (const char *)memchr(field_ptr, '\n', header_end - field_ptr); | |
350 | ||
6d7bc97b AJ |
351 | if (!field_ptr) { |
352 | // missing <LF> | |
353 | PROF_stop(HttpHeaderParse); | |
81ab22b6 FC |
354 | clean(); |
355 | return 0; | |
6d7bc97b | 356 | } |
52d3f198 | 357 | |
358 | field_end = field_ptr; | |
359 | ||
f53969cc | 360 | ++field_ptr; /* Move to next line */ |
52d3f198 | 361 | |
362 | if (field_end > this_line && field_end[-1] == '\r') { | |
f53969cc | 363 | --field_end; /* Ignore CR LF */ |
52d3f198 | 364 | |
e10272fc AR |
365 | if (owner == hoRequest && field_end > this_line) { |
366 | bool cr_only = true; | |
367 | for (const char *p = this_line; p < field_end && cr_only; ++p) { | |
368 | if (*p != '\r') | |
369 | cr_only = false; | |
370 | } | |
371 | if (cr_only) { | |
6e09ed7b | 372 | debugs(55, DBG_IMPORTANT, "SECURITY WARNING: Rejecting HTTP request with a CR+ " |
e10272fc | 373 | "header field to prevent request smuggling attacks: {" << |
81858ebc | 374 | getStringPrefix(header_start, hdrLen) << "}"); |
6d7bc97b | 375 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
376 | clean(); |
377 | return 0; | |
e10272fc | 378 | } |
52d3f198 | 379 | } |
380 | } | |
381 | ||
382 | /* Barf on stray CR characters */ | |
383 | if (memchr(this_line, '\r', field_end - this_line)) { | |
6e09ed7b | 384 | debugs(55, warnOnError, "WARNING: suspicious CR characters in HTTP header {" << |
81858ebc | 385 | getStringPrefix(field_start, field_end-field_start) << "}"); |
52d3f198 | 386 | |
387 | if (Config.onoff.relaxed_header_parser) { | |
f53969cc | 388 | char *p = (char *) this_line; /* XXX Warning! This destroys original header content and violates specifications somewhat */ |
52d3f198 | 389 | |
a38ec4b1 FC |
390 | while ((p = (char *)memchr(p, '\r', field_end - p)) != NULL) { |
391 | *p = ' '; | |
392 | ++p; | |
393 | } | |
6d7bc97b AJ |
394 | } else { |
395 | PROF_stop(HttpHeaderParse); | |
81ab22b6 FC |
396 | clean(); |
397 | return 0; | |
6d7bc97b | 398 | } |
52d3f198 | 399 | } |
400 | ||
401 | if (this_line + 1 == field_end && this_line > field_start) { | |
6e09ed7b | 402 | debugs(55, warnOnError, "WARNING: Blank continuation line in HTTP header {" << |
81858ebc | 403 | getStringPrefix(header_start, hdrLen) << "}"); |
6d7bc97b | 404 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
405 | clean(); |
406 | return 0; | |
52d3f198 | 407 | } |
408 | } while (field_ptr < header_end && (*field_ptr == ' ' || *field_ptr == '\t')); | |
409 | ||
410 | if (field_start == field_end) { | |
411 | if (field_ptr < header_end) { | |
6e09ed7b | 412 | debugs(55, warnOnError, "WARNING: unparseable HTTP header field near {" << |
81858ebc | 413 | getStringPrefix(field_start, hdrLen-(field_start-header_start)) << "}"); |
6d7bc97b | 414 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
415 | clean(); |
416 | return 0; | |
52d3f198 | 417 | } |
418 | ||
f53969cc | 419 | break; /* terminating blank line */ |
52d3f198 | 420 | } |
62e76326 | 421 | |
cdce6c61 | 422 | if ((e = HttpHeaderEntry::parse(field_start, field_end)) == NULL) { |
6e09ed7b | 423 | debugs(55, warnOnError, "WARNING: unparseable HTTP header field {" << |
81858ebc AJ |
424 | getStringPrefix(field_start, field_end-field_start) << "}"); |
425 | debugs(55, warnOnError, " in {" << getStringPrefix(header_start, hdrLen) << "}"); | |
52d3f198 | 426 | |
427 | if (Config.onoff.relaxed_header_parser) | |
428 | continue; | |
6e09ed7b | 429 | |
6d7bc97b | 430 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
431 | clean(); |
432 | return 0; | |
47ac2ebe | 433 | } |
62e76326 | 434 | |
40274c24 | 435 | // XXX: RFC 7230 Section 3.3.3 item #4 requires sending a 502 error in |
3e42b356 | 436 | // several cases that we do not yet cover. TODO: Rewrite to cover more. |
1da82544 | 437 | if (e->id == Http::HdrType::CONTENT_LENGTH && (e2 = findEntry(e->id)) != nullptr) { |
9d7a89a5 | 438 | if (e->value != e2->value) { |
3e62bd58 | 439 | int64_t l1, l2; |
6e09ed7b | 440 | debugs(55, warnOnError, "WARNING: found two conflicting content-length headers in {" << |
81858ebc | 441 | getStringPrefix(header_start, hdrLen) << "}"); |
9331e4b4 | 442 | |
443 | if (!Config.onoff.relaxed_header_parser) { | |
eede25e7 | 444 | delete e; |
6d7bc97b | 445 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
446 | clean(); |
447 | return 0; | |
9331e4b4 | 448 | } |
449 | ||
9d7a89a5 | 450 | if (!httpHeaderParseOffset(e->value.termedBuf(), &l1)) { |
e0236918 | 451 | debugs(55, DBG_IMPORTANT, "WARNING: Unparseable content-length '" << e->value << "'"); |
eede25e7 | 452 | delete e; |
9331e4b4 | 453 | continue; |
9d7a89a5 | 454 | } else if (!httpHeaderParseOffset(e2->value.termedBuf(), &l2)) { |
e0236918 | 455 | debugs(55, DBG_IMPORTANT, "WARNING: Unparseable content-length '" << e2->value << "'"); |
a9925b40 | 456 | delById(e2->id); |
9331e4b4 | 457 | } else { |
3e42b356 AR |
458 | if (l1 != l2) |
459 | conflictingContentLength_ = true; | |
eede25e7 | 460 | delete e; |
9331e4b4 | 461 | continue; |
462 | } | |
52d3f198 | 463 | } else { |
6e09ed7b AJ |
464 | debugs(55, warnOnError, "NOTICE: found double content-length header"); |
465 | delete e; | |
b3123159 | 466 | |
6e09ed7b | 467 | if (Config.onoff.relaxed_header_parser) |
b3123159 | 468 | continue; |
6e09ed7b | 469 | |
6d7bc97b | 470 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
471 | clean(); |
472 | return 0; | |
52d3f198 | 473 | } |
474 | } | |
62e76326 | 475 | |
789217a2 | 476 | if (e->id == Http::HdrType::OTHER && stringHasWhitespace(e->name.termedBuf())) { |
6e09ed7b | 477 | debugs(55, warnOnError, "WARNING: found whitespace in HTTP header name {" << |
81858ebc | 478 | getStringPrefix(field_start, field_end-field_start) << "}"); |
47ac2ebe | 479 | |
52d3f198 | 480 | if (!Config.onoff.relaxed_header_parser) { |
eede25e7 | 481 | delete e; |
6d7bc97b | 482 | PROF_stop(HttpHeaderParse); |
81ab22b6 FC |
483 | clean(); |
484 | return 0; | |
52d3f198 | 485 | } |
486 | } | |
62e76326 | 487 | |
a9925b40 | 488 | addEntry(e); |
cb69b4c7 | 489 | } |
62e76326 | 490 | |
c3d0ba0c AR |
491 | if (chunked()) { |
492 | // RFC 2616 section 4.4: ignore Content-Length with Transfer-Encoding | |
789217a2 | 493 | delById(Http::HdrType::CONTENT_LENGTH); |
3e42b356 AR |
494 | // RFC 7230 section 3.3.3 #4: ignore Content-Length conflicts with Transfer-Encoding |
495 | conflictingContentLength_ = false; | |
40274c24 | 496 | } else if (conflictingContentLength_) { |
3e42b356 AR |
497 | // ensure our callers do not see the conflicting Content-Length value |
498 | delById(Http::HdrType::CONTENT_LENGTH); | |
c3d0ba0c AR |
499 | } |
500 | ||
3a9cf2d5 | 501 | PROF_stop(HttpHeaderParse); |
f53969cc | 502 | return 1; /* even if no fields where found, it is a valid header */ |
cb69b4c7 | 503 | } |
504 | ||
99edd1c3 | 505 | /* packs all the entries using supplied packer */ |
cb69b4c7 | 506 | void |
17802cf1 | 507 | HttpHeader::packInto(Packable * p, bool mask_sensitive_info) const |
cb69b4c7 | 508 | { |
9bea1d5b | 509 | HttpHeaderPos pos = HttpHeaderInitPos; |
510 | const HttpHeaderEntry *e; | |
a9925b40 | 511 | assert(p); |
3cc0f4e7 AR |
512 | debugs(55, 7, this << " into " << p << |
513 | (mask_sensitive_info ? " while masking" : "")); | |
9bea1d5b | 514 | /* pack all entries one by one */ |
d8f6c79c FC |
515 | while ((e = getEntry(&pos))) { |
516 | if (!mask_sensitive_info) { | |
517 | e->packInto(p); | |
518 | continue; | |
519 | } | |
3cc0f4e7 AR |
520 | |
521 | bool maskThisEntry = false; | |
d8f6c79c | 522 | switch (e->id) { |
789217a2 FC |
523 | case Http::HdrType::AUTHORIZATION: |
524 | case Http::HdrType::PROXY_AUTHORIZATION: | |
3cc0f4e7 | 525 | maskThisEntry = true; |
d3823ea7 | 526 | break; |
3cc0f4e7 | 527 | |
789217a2 FC |
528 | case Http::HdrType::FTP_ARGUMENTS: |
529 | if (const HttpHeaderEntry *cmd = findEntry(Http::HdrType::FTP_COMMAND)) | |
3cc0f4e7 AR |
530 | maskThisEntry = (cmd->value == "PASS"); |
531 | break; | |
532 | ||
d3823ea7 | 533 | default: |
d3823ea7 | 534 | break; |
d8f6c79c | 535 | } |
3cc0f4e7 | 536 | if (maskThisEntry) { |
785b508d AJ |
537 | p->append(e->name.rawBuf(), e->name.size()); |
538 | p->append(": ** NOT DISPLAYED **\r\n", 23); | |
3cc0f4e7 AR |
539 | } else { |
540 | e->packInto(p); | |
541 | } | |
542 | ||
d8f6c79c | 543 | } |
35b88ed2 | 544 | /* Pack in the "special" entries */ |
545 | ||
546 | /* Cache-Control */ | |
cb69b4c7 | 547 | } |
548 | ||
549 | /* returns next valid entry */ | |
99edd1c3 | 550 | HttpHeaderEntry * |
a9925b40 | 551 | HttpHeader::getEntry(HttpHeaderPos * pos) const |
cb69b4c7 | 552 | { |
a9925b40 | 553 | assert(pos); |
c0abe2ec | 554 | assert(*pos >= HttpHeaderInitPos && *pos < static_cast<ssize_t>(entries.size())); |
62e76326 | 555 | |
c0abe2ec | 556 | for (++(*pos); *pos < static_cast<ssize_t>(entries.size()); ++(*pos)) { |
4c9eadc2 | 557 | if (entries[*pos]) |
c0abe2ec | 558 | return static_cast<HttpHeaderEntry*>(entries[*pos]); |
cb69b4c7 | 559 | } |
62e76326 | 560 | |
9bea1d5b | 561 | return NULL; |
cb69b4c7 | 562 | } |
563 | ||
564 | /* | |
26ac0430 | 565 | * returns a pointer to a specified entry if any |
d8b249ef | 566 | * note that we return one entry so it does not make much sense to ask for |
567 | * "list" headers | |
cb69b4c7 | 568 | */ |
de336bbe | 569 | HttpHeaderEntry * |
789217a2 | 570 | HttpHeader::findEntry(Http::HdrType id) const |
cb69b4c7 | 571 | { |
8cccf1f8 | 572 | assert(any_registered_header(id)); |
81ab22b6 | 573 | assert(!Http::HeaderLookupTable.lookup(id).list); |
9bea1d5b | 574 | |
575 | /* check mask first */ | |
62e76326 | 576 | |
a9925b40 | 577 | if (!CBIT_TEST(mask, id)) |
62e76326 | 578 | return NULL; |
579 | ||
9bea1d5b | 580 | /* looks like we must have it, do linear search */ |
81ab22b6 FC |
581 | for (auto e : entries) { |
582 | if (e && e->id == id) | |
62e76326 | 583 | return e; |
cb69b4c7 | 584 | } |
62e76326 | 585 | |
9bea1d5b | 586 | /* hm.. we thought it was there, but it was not found */ |
81ab22b6 FC |
587 | assert(false); |
588 | return nullptr; /* not reached */ | |
cb69b4c7 | 589 | } |
590 | ||
a622fff0 | 591 | /* |
592 | * same as httpHeaderFindEntry | |
593 | */ | |
a9925b40 | 594 | HttpHeaderEntry * |
789217a2 | 595 | HttpHeader::findLastEntry(Http::HdrType id) const |
a622fff0 | 596 | { |
8cccf1f8 | 597 | assert(any_registered_header(id)); |
81ab22b6 | 598 | assert(!Http::HeaderLookupTable.lookup(id).list); |
9bea1d5b | 599 | |
600 | /* check mask first */ | |
a9925b40 | 601 | if (!CBIT_TEST(mask, id)) |
62e76326 | 602 | return NULL; |
603 | ||
81ab22b6 FC |
604 | for (auto e = entries.rbegin(); e != entries.rend(); ++e) { |
605 | if (*e && (*e)->id == id) | |
606 | return *e; | |
a622fff0 | 607 | } |
62e76326 | 608 | |
81ab22b6 FC |
609 | /* hm.. we thought it was there, but it was not found */ |
610 | assert(false); | |
611 | return nullptr; /* not reached */ | |
a622fff0 | 612 | } |
613 | ||
cb69b4c7 | 614 | /* |
26ac0430 | 615 | * deletes all fields with a given name if any, returns #fields deleted; |
cb69b4c7 | 616 | */ |
2ac76861 | 617 | int |
a9925b40 | 618 | HttpHeader::delByName(const char *name) |
cb69b4c7 | 619 | { |
9bea1d5b | 620 | int count = 0; |
621 | HttpHeaderPos pos = HttpHeaderInitPos; | |
622 | HttpHeaderEntry *e; | |
f53969cc | 623 | httpHeaderMaskInit(&mask, 0); /* temporal inconsistency */ |
efc26e8e | 624 | debugs(55, 9, "deleting '" << name << "' fields in hdr " << this); |
62e76326 | 625 | |
a9925b40 | 626 | while ((e = getEntry(&pos))) { |
30abd221 | 627 | if (!e->name.caseCmp(name)) |
ba9fb01d | 628 | delAt(pos, count); |
629 | else | |
a9925b40 | 630 | CBIT_SET(mask, e->id); |
cb69b4c7 | 631 | } |
62e76326 | 632 | |
9bea1d5b | 633 | return count; |
cb69b4c7 | 634 | } |
635 | ||
2246b732 | 636 | /* deletes all entries with a given id, returns the #entries deleted */ |
637 | int | |
789217a2 | 638 | HttpHeader::delById(Http::HdrType id) |
d8b249ef | 639 | { |
efc26e8e | 640 | debugs(55, 8, this << " del-by-id " << id); |
8cccf1f8 | 641 | assert(any_registered_header(id)); |
62e76326 | 642 | |
a9925b40 | 643 | if (!CBIT_TEST(mask, id)) |
62e76326 | 644 | return 0; |
645 | ||
5134d3a4 AR |
646 | int count = 0; |
647 | ||
648 | HttpHeaderPos pos = HttpHeaderInitPos; | |
649 | while (HttpHeaderEntry *e = getEntry(&pos)) { | |
650 | if (e->id == id) | |
651 | delAt(pos, count); // deletes e | |
652 | } | |
62e76326 | 653 | |
a9925b40 | 654 | CBIT_CLR(mask, id); |
9bea1d5b | 655 | assert(count); |
656 | return count; | |
d8b249ef | 657 | } |
d8b249ef | 658 | |
cb69b4c7 | 659 | /* |
660 | * deletes an entry at pos and leaves a gap; leaving a gap makes it | |
661 | * possible to iterate(search) and delete fields at the same time | |
ba9fb01d | 662 | * NOTE: Does not update the header mask. Caller must follow up with |
663 | * a call to refreshMask() if headers_deleted was incremented. | |
cb69b4c7 | 664 | */ |
2246b732 | 665 | void |
ba9fb01d | 666 | HttpHeader::delAt(HttpHeaderPos pos, int &headers_deleted) |
cb69b4c7 | 667 | { |
9bea1d5b | 668 | HttpHeaderEntry *e; |
c0abe2ec FC |
669 | assert(pos >= HttpHeaderInitPos && pos < static_cast<ssize_t>(entries.size())); |
670 | e = static_cast<HttpHeaderEntry*>(entries[pos]); | |
4c9eadc2 | 671 | entries[pos] = NULL; |
9bea1d5b | 672 | /* decrement header length, allow for ": " and crlf */ |
a9925b40 | 673 | len -= e->name.size() + 2 + e->value.size() + 2; |
674 | assert(len >= 0); | |
eede25e7 | 675 | delete e; |
ba9fb01d | 676 | ++headers_deleted; |
cb69b4c7 | 677 | } |
678 | ||
394499bd | 679 | /* |
680 | * Compacts the header storage | |
681 | */ | |
682 | void | |
683 | HttpHeader::compact() | |
684 | { | |
6e1410f9 | 685 | // TODO: optimize removal, or possibly make it so that's not needed. |
81ab22b6 FC |
686 | entries.erase( std::remove(entries.begin(), entries.end(), nullptr), |
687 | entries.end()); | |
394499bd | 688 | } |
689 | ||
ba9fb01d | 690 | /* |
691 | * Refreshes the header mask. Required after delAt() calls. | |
692 | */ | |
693 | void | |
694 | HttpHeader::refreshMask() | |
695 | { | |
696 | httpHeaderMaskInit(&mask, 0); | |
697 | debugs(55, 7, "refreshing the mask in hdr " << this); | |
81ab22b6 FC |
698 | for (auto e : entries) { |
699 | if (e) | |
700 | CBIT_SET(mask, e->id); | |
ba9fb01d | 701 | } |
702 | } | |
99edd1c3 | 703 | |
62e76326 | 704 | /* appends an entry; |
eede25e7 | 705 | * does not call e->clone() so one should not reuse "*e" |
cb69b4c7 | 706 | */ |
99edd1c3 | 707 | void |
a9925b40 | 708 | HttpHeader::addEntry(HttpHeaderEntry * e) |
cb69b4c7 | 709 | { |
a9925b40 | 710 | assert(e); |
1da82544 | 711 | assert(any_HdrType_enum_value(e->id)); |
59c50530 | 712 | assert(e->name.size()); |
9bea1d5b | 713 | |
4c9eadc2 | 714 | debugs(55, 7, this << " adding entry: " << e->id << " at " << entries.size()); |
62e76326 | 715 | |
789217a2 | 716 | if (e->id != Http::HdrType::BAD_HDR) { |
73b2aa87 FC |
717 | if (CBIT_TEST(mask, e->id)) { |
718 | ++ headerStatsTable[e->id].repCount; | |
719 | } else { | |
720 | CBIT_SET(mask, e->id); | |
721 | } | |
b88a45ed | 722 | } |
62e76326 | 723 | |
a9925b40 | 724 | entries.push_back(e); |
62e76326 | 725 | |
9bea1d5b | 726 | /* increment header length, allow for ": " and crlf */ |
a9925b40 | 727 | len += e->name.size() + 2 + e->value.size() + 2; |
cb69b4c7 | 728 | } |
729 | ||
bbe58ab5 | 730 | /* inserts an entry; |
eede25e7 | 731 | * does not call e->clone() so one should not reuse "*e" |
bbe58ab5 | 732 | */ |
733 | void | |
a9925b40 | 734 | HttpHeader::insertEntry(HttpHeaderEntry * e) |
bbe58ab5 | 735 | { |
a9925b40 | 736 | assert(e); |
229eb96e | 737 | assert(any_valid_header(e->id)); |
bbe58ab5 | 738 | |
f9514ae8 | 739 | debugs(55, 7, this << " adding entry: " << e->id << " at " << entries.size()); |
bbe58ab5 | 740 | |
789217a2 | 741 | // Http::HdrType::BAD_HDR is filtered out by assert_any_valid_header |
b88a45ed | 742 | if (CBIT_TEST(mask, e->id)) { |
73b2aa87 | 743 | ++ headerStatsTable[e->id].repCount; |
b88a45ed | 744 | } else { |
a9925b40 | 745 | CBIT_SET(mask, e->id); |
b88a45ed | 746 | } |
bbe58ab5 | 747 | |
42865d25 | 748 | entries.insert(entries.begin(),e); |
bbe58ab5 | 749 | |
750 | /* increment header length, allow for ": " and crlf */ | |
a9925b40 | 751 | len += e->name.size() + 2 + e->value.size() + 2; |
bbe58ab5 | 752 | } |
753 | ||
35b88ed2 | 754 | bool |
789217a2 | 755 | HttpHeader::getList(Http::HdrType id, String *s) const |
35b88ed2 | 756 | { |
efc26e8e | 757 | debugs(55, 9, this << " joining for id " << id); |
35b88ed2 | 758 | /* only fields from ListHeaders array can be "listed" */ |
81ab22b6 | 759 | assert(Http::HeaderLookupTable.lookup(id).list); |
35b88ed2 | 760 | |
761 | if (!CBIT_TEST(mask, id)) | |
762 | return false; | |
763 | ||
81ab22b6 FC |
764 | for (auto e: entries) { |
765 | if (e && e->id == id) | |
9d7a89a5 | 766 | strListAdd(s, e->value.termedBuf(), ','); |
35b88ed2 | 767 | } |
768 | ||
769 | /* | |
770 | * note: we might get an empty (size==0) string if there was an "empty" | |
771 | * header. This results in an empty length String, which may have a NULL | |
772 | * buffer. | |
773 | */ | |
774 | /* temporary warning: remove it? (Is it useful for diagnostics ?) */ | |
775 | if (!s->size()) | |
81ab22b6 | 776 | debugs(55, 3, "empty list header: " << Http::HeaderLookupTable.lookup(id).name << "(" << id << ")"); |
35b88ed2 | 777 | else |
778 | debugs(55, 6, this << ": joined for id " << id << ": " << s); | |
779 | ||
780 | return true; | |
781 | } | |
782 | ||
99edd1c3 | 783 | /* return a list of entries with the same id separated by ',' and ws */ |
30abd221 | 784 | String |
789217a2 | 785 | HttpHeader::getList(Http::HdrType id) const |
cb69b4c7 | 786 | { |
9bea1d5b | 787 | HttpHeaderEntry *e; |
788 | HttpHeaderPos pos = HttpHeaderInitPos; | |
efc26e8e | 789 | debugs(55, 9, this << "joining for id " << id); |
9bea1d5b | 790 | /* only fields from ListHeaders array can be "listed" */ |
81ab22b6 | 791 | assert(Http::HeaderLookupTable.lookup(id).list); |
62e76326 | 792 | |
a9925b40 | 793 | if (!CBIT_TEST(mask, id)) |
30abd221 | 794 | return String(); |
650c4b88 | 795 | |
30abd221 | 796 | String s; |
62e76326 | 797 | |
a9925b40 | 798 | while ((e = getEntry(&pos))) { |
62e76326 | 799 | if (e->id == id) |
9d7a89a5 | 800 | strListAdd(&s, e->value.termedBuf(), ','); |
d35b9a94 | 801 | } |
62e76326 | 802 | |
9bea1d5b | 803 | /* |
948078e3 | 804 | * note: we might get an empty (size==0) string if there was an "empty" |
805 | * header. This results in an empty length String, which may have a NULL | |
806 | * buffer. | |
9bea1d5b | 807 | */ |
948078e3 | 808 | /* temporary warning: remove it? (Is it useful for diagnostics ?) */ |
528b2c61 | 809 | if (!s.size()) |
81ab22b6 | 810 | debugs(55, 3, "empty list header: " << Http::HeaderLookupTable.lookup(id).name << "(" << id << ")"); |
948078e3 | 811 | else |
812 | debugs(55, 6, this << ": joined for id " << id << ": " << s); | |
62e76326 | 813 | |
9bea1d5b | 814 | return s; |
cb69b4c7 | 815 | } |
816 | ||
f66a9ef4 | 817 | /* return a string or list of entries with the same id separated by ',' and ws */ |
30abd221 | 818 | String |
789217a2 | 819 | HttpHeader::getStrOrList(Http::HdrType id) const |
f66a9ef4 | 820 | { |
c7327fa0 | 821 | HttpHeaderEntry *e; |
9bea1d5b | 822 | |
81ab22b6 | 823 | if (Http::HeaderLookupTable.lookup(id).list) |
a9925b40 | 824 | return getList(id); |
62e76326 | 825 | |
a9925b40 | 826 | if ((e = findEntry(id))) |
62e76326 | 827 | return e->value; |
828 | ||
30abd221 | 829 | return String(); |
f66a9ef4 | 830 | } |
831 | ||
832 | /* | |
b2c44718 | 833 | * Returns the value of the specified header and/or an undefined String. |
f66a9ef4 | 834 | */ |
30abd221 | 835 | String |
a9925b40 | 836 | HttpHeader::getByName(const char *name) const |
81ab22b6 FC |
837 | { |
838 | String result; | |
839 | // ignore presence: return undefined string if an empty header is present | |
840 | (void)getByNameIfPresent(name, strlen(name), result); | |
841 | return result; | |
842 | } | |
843 | ||
844 | String | |
845 | HttpHeader::getByName(const SBuf &name) const | |
b2c44718 AR |
846 | { |
847 | String result; | |
848 | // ignore presence: return undefined string if an empty header is present | |
849 | (void)getByNameIfPresent(name, result); | |
850 | return result; | |
851 | } | |
852 | ||
81ab22b6 FC |
853 | String |
854 | HttpHeader::getById(Http::HdrType id) const | |
855 | { | |
856 | String result; | |
857 | (void)getByIdIfPresent(id,result); | |
858 | return result; | |
859 | } | |
860 | ||
861 | bool | |
862 | HttpHeader::getByNameIfPresent(const SBuf &s, String &result) const | |
863 | { | |
864 | return getByNameIfPresent(s.rawContent(), s.length(), result); | |
865 | } | |
866 | ||
867 | bool | |
868 | HttpHeader::getByIdIfPresent(Http::HdrType id, String &result) const | |
869 | { | |
870 | if (id == Http::HdrType::BAD_HDR) | |
871 | return false; | |
872 | if (!has(id)) | |
873 | return false; | |
874 | result = getStrOrList(id); | |
875 | return true; | |
876 | } | |
877 | ||
b2c44718 | 878 | bool |
81ab22b6 | 879 | HttpHeader::getByNameIfPresent(const char *name, int namelen, String &result) const |
f66a9ef4 | 880 | { |
789217a2 | 881 | Http::HdrType id; |
9bea1d5b | 882 | HttpHeaderPos pos = HttpHeaderInitPos; |
883 | HttpHeaderEntry *e; | |
9bea1d5b | 884 | |
9bea1d5b | 885 | assert(name); |
886 | ||
887 | /* First try the quick path */ | |
81ab22b6 | 888 | id = Http::HeaderLookupTable.lookup(name,namelen).id; |
62e76326 | 889 | |
789217a2 | 890 | if (id != Http::HdrType::BAD_HDR) { |
81ab22b6 FC |
891 | if (getByIdIfPresent(id, result)) |
892 | return true; | |
b2c44718 | 893 | } |
650c4b88 | 894 | |
9bea1d5b | 895 | /* Sorry, an unknown header name. Do linear search */ |
b2c44718 | 896 | bool found = false; |
a9925b40 | 897 | while ((e = getEntry(&pos))) { |
789217a2 | 898 | if (e->id == Http::HdrType::OTHER && e->name.caseCmp(name) == 0) { |
b2c44718 | 899 | found = true; |
9d7a89a5 | 900 | strListAdd(&result, e->value.termedBuf(), ','); |
62e76326 | 901 | } |
f66a9ef4 | 902 | } |
62e76326 | 903 | |
b2c44718 | 904 | return found; |
f66a9ef4 | 905 | } |
cb69b4c7 | 906 | |
14b463aa | 907 | /* |
372fdfbf | 908 | * Returns a the value of the specified list member, if any. |
14b463aa | 909 | */ |
30abd221 | 910 | String |
a9925b40 | 911 | HttpHeader::getByNameListMember(const char *name, const char *member, const char separator) const |
14b463aa | 912 | { |
30abd221 | 913 | String header; |
14b463aa | 914 | const char *pos = NULL; |
915 | const char *item; | |
916 | int ilen; | |
917 | int mlen = strlen(member); | |
918 | ||
14b463aa | 919 | assert(name); |
920 | ||
a9925b40 | 921 | header = getByName(name); |
14b463aa | 922 | |
30abd221 | 923 | String result; |
650c4b88 | 924 | |
14b463aa | 925 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { |
62e76326 | 926 | if (strncmp(item, member, mlen) == 0 && item[mlen] == '=') { |
927 | result.append(item + mlen + 1, ilen - mlen - 1); | |
928 | break; | |
929 | } | |
14b463aa | 930 | } |
62e76326 | 931 | |
14b463aa | 932 | return result; |
933 | } | |
934 | ||
935 | /* | |
936 | * returns a the value of the specified list member, if any. | |
937 | */ | |
30abd221 | 938 | String |
789217a2 | 939 | HttpHeader::getListMember(Http::HdrType id, const char *member, const char separator) const |
14b463aa | 940 | { |
30abd221 | 941 | String header; |
14b463aa | 942 | const char *pos = NULL; |
943 | const char *item; | |
944 | int ilen; | |
945 | int mlen = strlen(member); | |
946 | ||
8cccf1f8 | 947 | assert(any_registered_header(id)); |
14b463aa | 948 | |
a9925b40 | 949 | header = getStrOrList(id); |
30abd221 | 950 | String result; |
14b463aa | 951 | |
952 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { | |
62e76326 | 953 | if (strncmp(item, member, mlen) == 0 && item[mlen] == '=') { |
954 | result.append(item + mlen + 1, ilen - mlen - 1); | |
955 | break; | |
956 | } | |
14b463aa | 957 | } |
62e76326 | 958 | |
30abd221 | 959 | header.clean(); |
14b463aa | 960 | return result; |
961 | } | |
962 | ||
cb69b4c7 | 963 | /* test if a field is present */ |
2ac76861 | 964 | int |
789217a2 | 965 | HttpHeader::has(Http::HdrType id) const |
cb69b4c7 | 966 | { |
8cccf1f8 | 967 | assert(any_registered_header(id)); |
efc26e8e | 968 | debugs(55, 9, this << " lookup for " << id); |
a9925b40 | 969 | return CBIT_TEST(mask, id); |
cb69b4c7 | 970 | } |
971 | ||
972 | void | |
789217a2 | 973 | HttpHeader::putInt(Http::HdrType id, int number) |
cb69b4c7 | 974 | { |
8cccf1f8 | 975 | assert(any_registered_header(id)); |
81ab22b6 | 976 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftInt); /* must be of an appropriate type */ |
9bea1d5b | 977 | assert(number >= 0); |
eede25e7 | 978 | addEntry(new HttpHeaderEntry(id, NULL, xitoa(number))); |
cb69b4c7 | 979 | } |
980 | ||
47f6e231 | 981 | void |
789217a2 | 982 | HttpHeader::putInt64(Http::HdrType id, int64_t number) |
47f6e231 | 983 | { |
8cccf1f8 | 984 | assert(any_registered_header(id)); |
81ab22b6 | 985 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftInt64); /* must be of an appropriate type */ |
47f6e231 | 986 | assert(number >= 0); |
987 | addEntry(new HttpHeaderEntry(id, NULL, xint64toa(number))); | |
988 | } | |
989 | ||
cb69b4c7 | 990 | void |
789217a2 | 991 | HttpHeader::putTime(Http::HdrType id, time_t htime) |
cb69b4c7 | 992 | { |
8cccf1f8 | 993 | assert(any_registered_header(id)); |
81ab22b6 | 994 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftDate_1123); /* must be of an appropriate type */ |
a1d6870f | 995 | assert(htime >= 0); |
eede25e7 | 996 | addEntry(new HttpHeaderEntry(id, NULL, mkrfc1123(htime))); |
cb69b4c7 | 997 | } |
2ac76861 | 998 | |
cb69b4c7 | 999 | void |
789217a2 | 1000 | HttpHeader::putStr(Http::HdrType id, const char *str) |
cb69b4c7 | 1001 | { |
8cccf1f8 | 1002 | assert(any_registered_header(id)); |
81ab22b6 | 1003 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftStr); /* must be of an appropriate type */ |
9bea1d5b | 1004 | assert(str); |
eede25e7 | 1005 | addEntry(new HttpHeaderEntry(id, NULL, str)); |
cb69b4c7 | 1006 | } |
1007 | ||
63259c34 | 1008 | void |
a9925b40 | 1009 | HttpHeader::putAuth(const char *auth_scheme, const char *realm) |
63259c34 | 1010 | { |
a9925b40 | 1011 | assert(auth_scheme && realm); |
789217a2 | 1012 | httpHeaderPutStrf(this, Http::HdrType::WWW_AUTHENTICATE, "%s realm=\"%s\"", auth_scheme, realm); |
63259c34 | 1013 | } |
1014 | ||
99edd1c3 | 1015 | void |
a9925b40 | 1016 | HttpHeader::putCc(const HttpHdrCc * cc) |
99edd1c3 | 1017 | { |
a9925b40 | 1018 | assert(cc); |
9bea1d5b | 1019 | /* remove old directives if any */ |
789217a2 | 1020 | delById(Http::HdrType::CACHE_CONTROL); |
9bea1d5b | 1021 | /* pack into mb */ |
10201568 | 1022 | MemBuf mb; |
2fe7eff9 | 1023 | mb.init(); |
10201568 | 1024 | cc->packInto(&mb); |
9bea1d5b | 1025 | /* put */ |
789217a2 | 1026 | addEntry(new HttpHeaderEntry(Http::HdrType::CACHE_CONTROL, NULL, mb.buf)); |
9bea1d5b | 1027 | /* cleanup */ |
2fe7eff9 | 1028 | mb.clean(); |
99edd1c3 | 1029 | } |
1030 | ||
d192d11f | 1031 | void |
a9925b40 | 1032 | HttpHeader::putContRange(const HttpHdrContRange * cr) |
d192d11f | 1033 | { |
a9925b40 | 1034 | assert(cr); |
9bea1d5b | 1035 | /* remove old directives if any */ |
789217a2 | 1036 | delById(Http::HdrType::CONTENT_RANGE); |
9bea1d5b | 1037 | /* pack into mb */ |
10201568 | 1038 | MemBuf mb; |
2fe7eff9 | 1039 | mb.init(); |
10201568 | 1040 | httpHdrContRangePackInto(cr, &mb); |
9bea1d5b | 1041 | /* put */ |
789217a2 | 1042 | addEntry(new HttpHeaderEntry(Http::HdrType::CONTENT_RANGE, NULL, mb.buf)); |
9bea1d5b | 1043 | /* cleanup */ |
2fe7eff9 | 1044 | mb.clean(); |
d192d11f | 1045 | } |
1046 | ||
1047 | void | |
a9925b40 | 1048 | HttpHeader::putRange(const HttpHdrRange * range) |
d192d11f | 1049 | { |
a9925b40 | 1050 | assert(range); |
9bea1d5b | 1051 | /* remove old directives if any */ |
789217a2 | 1052 | delById(Http::HdrType::RANGE); |
9bea1d5b | 1053 | /* pack into mb */ |
10201568 | 1054 | MemBuf mb; |
2fe7eff9 | 1055 | mb.init(); |
10201568 | 1056 | range->packInto(&mb); |
9bea1d5b | 1057 | /* put */ |
789217a2 | 1058 | addEntry(new HttpHeaderEntry(Http::HdrType::RANGE, NULL, mb.buf)); |
9bea1d5b | 1059 | /* cleanup */ |
2fe7eff9 | 1060 | mb.clean(); |
d192d11f | 1061 | } |
1062 | ||
43ae1d95 | 1063 | void |
a9925b40 | 1064 | HttpHeader::putSc(HttpHdrSc *sc) |
43ae1d95 | 1065 | { |
a9925b40 | 1066 | assert(sc); |
43ae1d95 | 1067 | /* remove old directives if any */ |
789217a2 | 1068 | delById(Http::HdrType::SURROGATE_CONTROL); |
43ae1d95 | 1069 | /* pack into mb */ |
10201568 | 1070 | MemBuf mb; |
2fe7eff9 | 1071 | mb.init(); |
10201568 | 1072 | sc->packInto(&mb); |
43ae1d95 | 1073 | /* put */ |
789217a2 | 1074 | addEntry(new HttpHeaderEntry(Http::HdrType::SURROGATE_CONTROL, NULL, mb.buf)); |
43ae1d95 | 1075 | /* cleanup */ |
2fe7eff9 | 1076 | mb.clean(); |
43ae1d95 | 1077 | } |
1078 | ||
bcfba8bd AR |
1079 | void |
1080 | HttpHeader::putWarning(const int code, const char *const text) | |
1081 | { | |
1082 | char buf[512]; | |
1083 | snprintf(buf, sizeof(buf), "%i %s \"%s\"", code, visible_appname_string, text); | |
789217a2 | 1084 | putStr(Http::HdrType::WARNING, buf); |
bcfba8bd AR |
1085 | } |
1086 | ||
cb69b4c7 | 1087 | /* add extension header (these fields are not parsed/analyzed/joined, etc.) */ |
1088 | void | |
a9925b40 | 1089 | HttpHeader::putExt(const char *name, const char *value) |
cb69b4c7 | 1090 | { |
9bea1d5b | 1091 | assert(name && value); |
efc26e8e | 1092 | debugs(55, 8, this << " adds ext entry " << name << " : " << value); |
789217a2 | 1093 | addEntry(new HttpHeaderEntry(Http::HdrType::OTHER, name, value)); |
528b2c61 | 1094 | } |
1095 | ||
1096 | int | |
789217a2 | 1097 | HttpHeader::getInt(Http::HdrType id) const |
528b2c61 | 1098 | { |
8cccf1f8 | 1099 | assert(any_registered_header(id)); |
81ab22b6 | 1100 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftInt); /* must be of an appropriate type */ |
528b2c61 | 1101 | HttpHeaderEntry *e; |
62e76326 | 1102 | |
a9925b40 | 1103 | if ((e = findEntry(id))) |
eede25e7 | 1104 | return e->getInt(); |
62e76326 | 1105 | |
528b2c61 | 1106 | return -1; |
7c525cc2 | 1107 | } |
1108 | ||
47f6e231 | 1109 | int64_t |
789217a2 | 1110 | HttpHeader::getInt64(Http::HdrType id) const |
47f6e231 | 1111 | { |
8cccf1f8 | 1112 | assert(any_registered_header(id)); |
81ab22b6 | 1113 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftInt64); /* must be of an appropriate type */ |
47f6e231 | 1114 | HttpHeaderEntry *e; |
1115 | ||
1116 | if ((e = findEntry(id))) | |
1117 | return e->getInt64(); | |
1118 | ||
1119 | return -1; | |
1120 | } | |
1121 | ||
de336bbe | 1122 | time_t |
789217a2 | 1123 | HttpHeader::getTime(Http::HdrType id) const |
cb69b4c7 | 1124 | { |
9bea1d5b | 1125 | HttpHeaderEntry *e; |
1126 | time_t value = -1; | |
8cccf1f8 | 1127 | assert(any_registered_header(id)); |
81ab22b6 | 1128 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftDate_1123); /* must be of an appropriate type */ |
62e76326 | 1129 | |
a9925b40 | 1130 | if ((e = findEntry(id))) { |
9d7a89a5 | 1131 | value = parse_rfc1123(e->value.termedBuf()); |
62e76326 | 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 * |
789217a2 | 1140 | HttpHeader::getStr(Http::HdrType id) const |
cb69b4c7 | 1141 | { |
9bea1d5b | 1142 | HttpHeaderEntry *e; |
8cccf1f8 | 1143 | assert(any_registered_header(id)); |
81ab22b6 | 1144 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftStr); /* must be of an appropriate type */ |
62e76326 | 1145 | |
a9925b40 | 1146 | if ((e = findEntry(id))) { |
81ab22b6 | 1147 | httpHeaderNoteParsedEntry(e->id, e->value, false); /* no errors are possible */ |
9d7a89a5 | 1148 | return e->value.termedBuf(); |
d8b249ef | 1149 | } |
62e76326 | 1150 | |
9bea1d5b | 1151 | return NULL; |
cb69b4c7 | 1152 | } |
1153 | ||
a622fff0 | 1154 | /* unusual */ |
1155 | const char * | |
789217a2 | 1156 | HttpHeader::getLastStr(Http::HdrType id) const |
a622fff0 | 1157 | { |
9bea1d5b | 1158 | HttpHeaderEntry *e; |
8cccf1f8 | 1159 | assert(any_registered_header(id)); |
81ab22b6 | 1160 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftStr); /* must be of an appropriate type */ |
62e76326 | 1161 | |
a9925b40 | 1162 | if ((e = findLastEntry(id))) { |
81ab22b6 | 1163 | httpHeaderNoteParsedEntry(e->id, e->value, false); /* no errors are possible */ |
9d7a89a5 | 1164 | return e->value.termedBuf(); |
a622fff0 | 1165 | } |
62e76326 | 1166 | |
9bea1d5b | 1167 | return NULL; |
a622fff0 | 1168 | } |
1169 | ||
7faf2bdb | 1170 | HttpHdrCc * |
a9925b40 | 1171 | HttpHeader::getCc() const |
cb69b4c7 | 1172 | { |
789217a2 | 1173 | if (!CBIT_TEST(mask, Http::HdrType::CACHE_CONTROL)) |
62e76326 | 1174 | return NULL; |
35b88ed2 | 1175 | PROF_start(HttpHeader_getCc); |
62e76326 | 1176 | |
c57b8f05 | 1177 | String s; |
789217a2 | 1178 | getList(Http::HdrType::CACHE_CONTROL, &s); |
62e76326 | 1179 | |
c57b8f05 | 1180 | HttpHdrCc *cc=new HttpHdrCc(); |
7ebe76de FC |
1181 | |
1182 | if (!cc->parse(s)) { | |
cf66f10a FC |
1183 | delete cc; |
1184 | cc = NULL; | |
1185 | } | |
62e76326 | 1186 | |
95dc7ff4 | 1187 | ++ HttpHeaderStats[owner].ccParsedCount; |
62e76326 | 1188 | |
9bea1d5b | 1189 | if (cc) |
a9925b40 | 1190 | httpHdrCcUpdateStats(cc, &HttpHeaderStats[owner].ccTypeDistr); |
62e76326 | 1191 | |
789217a2 | 1192 | httpHeaderNoteParsedEntry(Http::HdrType::CACHE_CONTROL, s, !cc); |
62e76326 | 1193 | |
35b88ed2 | 1194 | PROF_stop(HttpHeader_getCc); |
62e76326 | 1195 | |
9bea1d5b | 1196 | return cc; |
cb69b4c7 | 1197 | } |
1198 | ||
02922e76 | 1199 | HttpHdrRange * |
a9925b40 | 1200 | HttpHeader::getRange() const |
02922e76 | 1201 | { |
9bea1d5b | 1202 | HttpHdrRange *r = NULL; |
1203 | HttpHeaderEntry *e; | |
1204 | /* some clients will send "Request-Range" _and_ *matching* "Range" | |
1205 | * who knows, some clients might send Request-Range only; | |
1206 | * this "if" should work correctly in both cases; | |
1207 | * hopefully no clients send mismatched headers! */ | |
62e76326 | 1208 | |
789217a2 FC |
1209 | if ((e = findEntry(Http::HdrType::RANGE)) || |
1210 | (e = findEntry(Http::HdrType::REQUEST_RANGE))) { | |
62e76326 | 1211 | r = HttpHdrRange::ParseCreate(&e->value); |
1212 | httpHeaderNoteParsedEntry(e->id, e->value, !r); | |
d192d11f | 1213 | } |
62e76326 | 1214 | |
9bea1d5b | 1215 | return r; |
02922e76 | 1216 | } |
1217 | ||
43ae1d95 | 1218 | HttpHdrSc * |
a9925b40 | 1219 | HttpHeader::getSc() const |
43ae1d95 | 1220 | { |
789217a2 | 1221 | if (!CBIT_TEST(mask, Http::HdrType::SURROGATE_CONTROL)) |
43ae1d95 | 1222 | return NULL; |
1223 | ||
30abd221 | 1224 | String s; |
26ac0430 | 1225 | |
789217a2 | 1226 | (void) getList(Http::HdrType::SURROGATE_CONTROL, &s); |
43ae1d95 | 1227 | |
45a58345 | 1228 | HttpHdrSc *sc = httpHdrScParseCreate(s); |
43ae1d95 | 1229 | |
95dc7ff4 | 1230 | ++ HttpHeaderStats[owner].ccParsedCount; |
43ae1d95 | 1231 | |
1232 | if (sc) | |
45a58345 | 1233 | sc->updateStats(&HttpHeaderStats[owner].scTypeDistr); |
43ae1d95 | 1234 | |
789217a2 | 1235 | httpHeaderNoteParsedEntry(Http::HdrType::SURROGATE_CONTROL, s, !sc); |
43ae1d95 | 1236 | |
1237 | return sc; | |
1238 | } | |
1239 | ||
d76fcfa7 | 1240 | HttpHdrContRange * |
a9925b40 | 1241 | HttpHeader::getContRange() const |
d76fcfa7 | 1242 | { |
9bea1d5b | 1243 | HttpHdrContRange *cr = NULL; |
1244 | HttpHeaderEntry *e; | |
62e76326 | 1245 | |
789217a2 | 1246 | if ((e = findEntry(Http::HdrType::CONTENT_RANGE))) { |
9d7a89a5 | 1247 | cr = httpHdrContRangeParseCreate(e->value.termedBuf()); |
62e76326 | 1248 | httpHeaderNoteParsedEntry(e->id, e->value, !cr); |
d8b249ef | 1249 | } |
62e76326 | 1250 | |
9bea1d5b | 1251 | return cr; |
cb69b4c7 | 1252 | } |
1253 | ||
99edd1c3 | 1254 | const char * |
789217a2 | 1255 | HttpHeader::getAuth(Http::HdrType id, const char *auth_scheme) const |
cb69b4c7 | 1256 | { |
9bea1d5b | 1257 | const char *field; |
1258 | int l; | |
a9925b40 | 1259 | assert(auth_scheme); |
1260 | field = getStr(id); | |
62e76326 | 1261 | |
f53969cc | 1262 | if (!field) /* no authorization field */ |
62e76326 | 1263 | return NULL; |
1264 | ||
9bea1d5b | 1265 | l = strlen(auth_scheme); |
62e76326 | 1266 | |
f53969cc | 1267 | if (!l || strncasecmp(field, auth_scheme, l)) /* wrong scheme */ |
62e76326 | 1268 | return NULL; |
1269 | ||
9bea1d5b | 1270 | field += l; |
62e76326 | 1271 | |
f53969cc | 1272 | if (!xisspace(*field)) /* wrong scheme */ |
62e76326 | 1273 | return NULL; |
1274 | ||
9bea1d5b | 1275 | /* skip white space */ |
95dc7ff4 | 1276 | for (; field && xisspace(*field); ++field); |
62e76326 | 1277 | |
f53969cc | 1278 | if (!*field) /* no authorization cookie */ |
62e76326 | 1279 | return NULL; |
1280 | ||
8bdd0cec | 1281 | static char decodedAuthToken[8192]; |
aadbbd7d AJ |
1282 | struct base64_decode_ctx ctx; |
1283 | base64_decode_init(&ctx); | |
1284 | size_t decodedLen = 0; | |
1285 | if (!base64_decode_update(&ctx, &decodedLen, reinterpret_cast<uint8_t*>(decodedAuthToken), strlen(field), reinterpret_cast<const uint8_t*>(field)) || | |
1286 | !base64_decode_final(&ctx)) { | |
1287 | return NULL; | |
1288 | } | |
8bdd0cec AJ |
1289 | decodedAuthToken[decodedLen] = '\0'; |
1290 | return decodedAuthToken; | |
cb69b4c7 | 1291 | } |
1292 | ||
a9771e51 | 1293 | ETag |
789217a2 | 1294 | HttpHeader::getETag(Http::HdrType id) const |
a9771e51 | 1295 | { |
26ac0430 | 1296 | ETag etag = {NULL, -1}; |
9bea1d5b | 1297 | HttpHeaderEntry *e; |
81ab22b6 | 1298 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftETag); /* must be of an appropriate type */ |
62e76326 | 1299 | |
a9925b40 | 1300 | if ((e = findEntry(id))) |
9d7a89a5 | 1301 | etagParseInit(&etag, e->value.termedBuf()); |
62e76326 | 1302 | |
9bea1d5b | 1303 | return etag; |
a9771e51 | 1304 | } |
1305 | ||
1306 | TimeOrTag | |
789217a2 | 1307 | HttpHeader::getTimeOrTag(Http::HdrType id) const |
a9771e51 | 1308 | { |
9bea1d5b | 1309 | TimeOrTag tot; |
1310 | HttpHeaderEntry *e; | |
81ab22b6 | 1311 | assert(Http::HeaderLookupTable.lookup(id).type == Http::HdrFieldType::ftDate_1123_or_ETag); /* must be of an appropriate type */ |
9bea1d5b | 1312 | memset(&tot, 0, sizeof(tot)); |
62e76326 | 1313 | |
a9925b40 | 1314 | if ((e = findEntry(id))) { |
9d7a89a5 | 1315 | const char *str = e->value.termedBuf(); |
62e76326 | 1316 | /* try as an ETag */ |
1317 | ||
1318 | if (etagParseInit(&tot.tag, str)) { | |
1319 | tot.valid = tot.tag.str != NULL; | |
1320 | tot.time = -1; | |
1321 | } else { | |
1322 | /* or maybe it is time? */ | |
1323 | tot.time = parse_rfc1123(str); | |
1324 | tot.valid = tot.time >= 0; | |
1325 | tot.tag.str = NULL; | |
1326 | } | |
a9771e51 | 1327 | } |
62e76326 | 1328 | |
f53969cc | 1329 | assert(tot.time < 0 || !tot.tag.str); /* paranoid */ |
9bea1d5b | 1330 | return tot; |
a9771e51 | 1331 | } |
1332 | ||
cb69b4c7 | 1333 | /* |
1334 | * HttpHeaderEntry | |
1335 | */ | |
1336 | ||
789217a2 | 1337 | HttpHeaderEntry::HttpHeaderEntry(Http::HdrType anId, const char *aName, const char *aValue) |
cb69b4c7 | 1338 | { |
1da82544 | 1339 | assert(any_HdrType_enum_value(anId)); |
eede25e7 | 1340 | id = anId; |
62e76326 | 1341 | |
789217a2 | 1342 | if (id != Http::HdrType::OTHER) |
81ab22b6 | 1343 | name = Http::HeaderLookupTable.lookup(id).name; |
9bea1d5b | 1344 | else |
eede25e7 | 1345 | name = aName; |
62e76326 | 1346 | |
eede25e7 | 1347 | value = aValue; |
62e76326 | 1348 | |
1da82544 | 1349 | if (id != Http::HdrType::BAD_HDR) |
73b2aa87 | 1350 | ++ headerStatsTable[id].aliveCount; |
62e76326 | 1351 | |
9d7a89a5 | 1352 | debugs(55, 9, "created HttpHeaderEntry " << this << ": '" << name << " : " << value ); |
eede25e7 | 1353 | } |
62e76326 | 1354 | |
eede25e7 | 1355 | HttpHeaderEntry::~HttpHeaderEntry() |
2ac76861 | 1356 | { |
9d7a89a5 | 1357 | debugs(55, 9, "destroying entry " << this << ": '" << name << ": " << value << "'"); |
62e76326 | 1358 | |
1da82544 FC |
1359 | if (id != Http::HdrType::BAD_HDR) { |
1360 | assert(headerStatsTable[id].aliveCount); | |
1361 | -- headerStatsTable[id].aliveCount; | |
1362 | id = Http::HdrType::BAD_HDR; // it already is BAD_HDR, no sense in resetting it | |
1363 | } | |
62e76326 | 1364 | |
cb69b4c7 | 1365 | } |
1366 | ||
eede25e7 | 1367 | /* parses and inits header entry, returns true/false */ |
cdce6c61 | 1368 | HttpHeaderEntry * |
eede25e7 | 1369 | HttpHeaderEntry::parse(const char *field_start, const char *field_end) |
cb69b4c7 | 1370 | { |
9bea1d5b | 1371 | /* note: name_start == field_start */ |
52d3f198 | 1372 | const char *name_end = (const char *)memchr(field_start, ':', field_end - field_start); |
26ac0430 | 1373 | int name_len = name_end ? name_end - field_start :0; |
f53969cc | 1374 | const char *value_start = field_start + name_len + 1; /* skip ':' */ |
9bea1d5b | 1375 | /* note: value_end == field_end */ |
1376 | ||
95dc7ff4 | 1377 | ++ HeaderEntryParsedCount; |
9bea1d5b | 1378 | |
1379 | /* do we have a valid field name within this field? */ | |
62e76326 | 1380 | |
9bea1d5b | 1381 | if (!name_len || name_end > field_end) |
cdce6c61 | 1382 | return NULL; |
62e76326 | 1383 | |
67746eea | 1384 | if (name_len > 65534) { |
1385 | /* String must be LESS THAN 64K and it adds a terminating NULL */ | |
e0236918 | 1386 | debugs(55, DBG_IMPORTANT, "WARNING: ignoring header name of " << name_len << " bytes"); |
cdce6c61 | 1387 | return NULL; |
25acfb53 | 1388 | } |
62e76326 | 1389 | |
52d3f198 | 1390 | if (Config.onoff.relaxed_header_parser && xisspace(field_start[name_len - 1])) { |
bf8fe701 | 1391 | debugs(55, Config.onoff.relaxed_header_parser <= 0 ? 1 : 2, |
81858ebc | 1392 | "NOTICE: Whitespace after header name in '" << getStringPrefix(field_start, field_end-field_start) << "'"); |
52d3f198 | 1393 | |
1394 | while (name_len > 0 && xisspace(field_start[name_len - 1])) | |
5e263176 | 1395 | --name_len; |
52d3f198 | 1396 | |
1397 | if (!name_len) | |
cdce6c61 | 1398 | return NULL; |
52d3f198 | 1399 | } |
1400 | ||
9bea1d5b | 1401 | /* now we know we can parse it */ |
62e76326 | 1402 | |
81858ebc | 1403 | debugs(55, 9, "parsing HttpHeaderEntry: near '" << getStringPrefix(field_start, field_end-field_start) << "'"); |
62e76326 | 1404 | |
9bea1d5b | 1405 | /* is it a "known" field? */ |
81ab22b6 | 1406 | Http::HdrType id = Http::HeaderLookupTable.lookup(field_start,name_len).id; |
92991271 | 1407 | debugs(55, 9, "got hdr-id=" << id); |
cdce6c61 | 1408 | |
30abd221 | 1409 | String name; |
cdce6c61 | 1410 | |
30abd221 | 1411 | String value; |
62e76326 | 1412 | |
789217a2 FC |
1413 | if (id == Http::HdrType::BAD_HDR) |
1414 | id = Http::HdrType::OTHER; | |
62e76326 | 1415 | |
9bea1d5b | 1416 | /* set field name */ |
789217a2 | 1417 | if (id == Http::HdrType::OTHER) |
eede25e7 | 1418 | name.limitInit(field_start, name_len); |
9bea1d5b | 1419 | else |
81ab22b6 | 1420 | name = Http::HeaderLookupTable.lookup(id).name; |
62e76326 | 1421 | |
9bea1d5b | 1422 | /* trim field value */ |
1423 | while (value_start < field_end && xisspace(*value_start)) | |
95dc7ff4 | 1424 | ++value_start; |
62e76326 | 1425 | |
52d3f198 | 1426 | while (value_start < field_end && xisspace(field_end[-1])) |
5e263176 | 1427 | --field_end; |
52d3f198 | 1428 | |
67746eea | 1429 | if (field_end - value_start > 65534) { |
1430 | /* String must be LESS THAN 64K and it adds a terminating NULL */ | |
e0236918 | 1431 | debugs(55, DBG_IMPORTANT, "WARNING: ignoring '" << name << "' header of " << (field_end - value_start) << " bytes"); |
62e76326 | 1432 | |
789217a2 | 1433 | if (id == Http::HdrType::OTHER) |
30abd221 | 1434 | name.clean(); |
62e76326 | 1435 | |
cdce6c61 | 1436 | return NULL; |
25acfb53 | 1437 | } |
62e76326 | 1438 | |
9bea1d5b | 1439 | /* set field value */ |
eede25e7 | 1440 | value.limitInit(value_start, field_end - value_start); |
62e76326 | 1441 | |
789217a2 | 1442 | if (id != Http::HdrType::BAD_HDR) |
73b2aa87 | 1443 | ++ headerStatsTable[id].seenCount; |
62e76326 | 1444 | |
9d7a89a5 | 1445 | debugs(55, 9, "parsed HttpHeaderEntry: '" << name << ": " << value << "'"); |
62e76326 | 1446 | |
9d7a89a5 | 1447 | return new HttpHeaderEntry(id, name.termedBuf(), value.termedBuf()); |
cb69b4c7 | 1448 | } |
1449 | ||
99edd1c3 | 1450 | HttpHeaderEntry * |
eede25e7 | 1451 | HttpHeaderEntry::clone() const |
cb69b4c7 | 1452 | { |
9d7a89a5 | 1453 | return new HttpHeaderEntry(id, name.termedBuf(), value.termedBuf()); |
cb69b4c7 | 1454 | } |
1455 | ||
de336bbe | 1456 | void |
17802cf1 | 1457 | HttpHeaderEntry::packInto(Packable * p) const |
cb69b4c7 | 1458 | { |
eede25e7 | 1459 | assert(p); |
785b508d AJ |
1460 | p->append(name.rawBuf(), name.size()); |
1461 | p->append(": ", 2); | |
1462 | p->append(value.rawBuf(), value.size()); | |
1463 | p->append("\r\n", 2); | |
cb69b4c7 | 1464 | } |
1465 | ||
eede25e7 | 1466 | int |
1467 | HttpHeaderEntry::getInt() const | |
1468 | { | |
eede25e7 | 1469 | int val = -1; |
9d7a89a5 | 1470 | int ok = httpHeaderParseInt(value.termedBuf(), &val); |
81ab22b6 | 1471 | httpHeaderNoteParsedEntry(id, value, ok == 0); |
eede25e7 | 1472 | /* XXX: Should we check ok - ie |
1473 | * return ok ? -1 : value; | |
1474 | */ | |
1475 | return val; | |
1476 | } | |
1477 | ||
47f6e231 | 1478 | int64_t |
1479 | HttpHeaderEntry::getInt64() const | |
1480 | { | |
47f6e231 | 1481 | int64_t val = -1; |
9d7a89a5 | 1482 | int ok = httpHeaderParseOffset(value.termedBuf(), &val); |
81ab22b6 | 1483 | httpHeaderNoteParsedEntry(id, value, ok == 0); |
47f6e231 | 1484 | /* XXX: Should we check ok - ie |
1485 | * return ok ? -1 : value; | |
1486 | */ | |
1487 | return val; | |
1488 | } | |
1489 | ||
cb69b4c7 | 1490 | static void |
81ab22b6 | 1491 | httpHeaderNoteParsedEntry(Http::HdrType id, String const &context, bool error) |
cb69b4c7 | 1492 | { |
789217a2 | 1493 | if (id != Http::HdrType::BAD_HDR) |
73b2aa87 | 1494 | ++ headerStatsTable[id].parsCount; |
62e76326 | 1495 | |
9bea1d5b | 1496 | if (error) { |
789217a2 | 1497 | if (id != Http::HdrType::BAD_HDR) |
73b2aa87 | 1498 | ++ headerStatsTable[id].errCount; |
81ab22b6 | 1499 | debugs(55, 2, "cannot parse hdr field: '" << Http::HeaderLookupTable.lookup(id).name << ": " << context << "'"); |
cb69b4c7 | 1500 | } |
cb69b4c7 | 1501 | } |
1502 | ||
cb69b4c7 | 1503 | /* |
12cf1be2 | 1504 | * Reports |
cb69b4c7 | 1505 | */ |
cb69b4c7 | 1506 | |
fcd2d3ef | 1507 | /* tmp variable used to pass stat info to dumpers */ |
f53969cc | 1508 | extern const HttpHeaderStat *dump_stat; /* argh! */ |
fcd2d3ef | 1509 | const HttpHeaderStat *dump_stat = NULL; |
1510 | ||
59a09b98 | 1511 | void |
ced8def3 | 1512 | httpHeaderFieldStatDumper(StoreEntry * sentry, int, double val, double, int count) |
cb69b4c7 | 1513 | { |
92991271 | 1514 | const int id = static_cast<int>(val); |
1da82544 | 1515 | const bool valid_id = Http::any_valid_header(static_cast<Http::HdrType>(id)); |
81ab22b6 | 1516 | const char *name = valid_id ? Http::HeaderLookupTable.lookup(static_cast<Http::HdrType>(id)).name : "INVALID"; |
9bea1d5b | 1517 | int visible = count > 0; |
1518 | /* for entries with zero count, list only those that belong to current type of message */ | |
62e76326 | 1519 | |
9bea1d5b | 1520 | if (!visible && valid_id && dump_stat->owner_mask) |
62e76326 | 1521 | visible = CBIT_TEST(*dump_stat->owner_mask, id); |
1522 | ||
9bea1d5b | 1523 | if (visible) |
62e76326 | 1524 | storeAppendPrintf(sentry, "%2d\t %-20s\t %5d\t %6.2f\n", |
1525 | id, name, count, xdiv(count, dump_stat->busyDestroyedCount)); | |
cb69b4c7 | 1526 | } |
1527 | ||
12cf1be2 | 1528 | static void |
ced8def3 | 1529 | httpHeaderFldsPerHdrDumper(StoreEntry * sentry, int idx, double val, double, int count) |
cb69b4c7 | 1530 | { |
9bea1d5b | 1531 | if (count) |
62e76326 | 1532 | storeAppendPrintf(sentry, "%2d\t %5d\t %5d\t %6.2f\n", |
1533 | idx, (int) val, count, | |
1534 | xpercent(count, dump_stat->destroyedCount)); | |
cb69b4c7 | 1535 | } |
1536 | ||
cb69b4c7 | 1537 | static void |
9bea1d5b | 1538 | httpHeaderStatDump(const HttpHeaderStat * hs, StoreEntry * e) |
12cf1be2 | 1539 | { |
73b2aa87 FC |
1540 | assert(hs); |
1541 | assert(e); | |
9bea1d5b | 1542 | |
1543 | dump_stat = hs; | |
1544 | storeAppendPrintf(e, "\nHeader Stats: %s\n", hs->label); | |
1545 | storeAppendPrintf(e, "\nField type distribution\n"); | |
1546 | storeAppendPrintf(e, "%2s\t %-20s\t %5s\t %6s\n", | |
62e76326 | 1547 | "id", "name", "count", "#/header"); |
96886986 | 1548 | hs->fieldTypeDistr.dump(e, httpHeaderFieldStatDumper); |
9bea1d5b | 1549 | storeAppendPrintf(e, "\nCache-control directives distribution\n"); |
1550 | storeAppendPrintf(e, "%2s\t %-20s\t %5s\t %6s\n", | |
62e76326 | 1551 | "id", "name", "count", "#/cc_field"); |
96886986 | 1552 | hs->ccTypeDistr.dump(e, httpHdrCcStatDumper); |
43ae1d95 | 1553 | storeAppendPrintf(e, "\nSurrogate-control directives distribution\n"); |
1554 | storeAppendPrintf(e, "%2s\t %-20s\t %5s\t %6s\n", | |
1555 | "id", "name", "count", "#/sc_field"); | |
96886986 | 1556 | hs->scTypeDistr.dump(e, httpHdrScStatDumper); |
9bea1d5b | 1557 | storeAppendPrintf(e, "\nNumber of fields per header distribution\n"); |
1558 | storeAppendPrintf(e, "%2s\t %-5s\t %5s\t %6s\n", | |
62e76326 | 1559 | "id", "#flds", "count", "%total"); |
96886986 | 1560 | hs->hdrUCountDistr.dump(e, httpHeaderFldsPerHdrDumper); |
41b43e70 | 1561 | storeAppendPrintf(e, "\n"); |
9bea1d5b | 1562 | dump_stat = NULL; |
cb69b4c7 | 1563 | } |
1564 | ||
12cf1be2 | 1565 | void |
9bea1d5b | 1566 | httpHeaderStoreReport(StoreEntry * e) |
cb69b4c7 | 1567 | { |
9bea1d5b | 1568 | int i; |
9bea1d5b | 1569 | assert(e); |
1570 | ||
1571 | HttpHeaderStats[0].parsedCount = | |
62e76326 | 1572 | HttpHeaderStats[hoRequest].parsedCount + HttpHeaderStats[hoReply].parsedCount; |
9bea1d5b | 1573 | HttpHeaderStats[0].ccParsedCount = |
62e76326 | 1574 | HttpHeaderStats[hoRequest].ccParsedCount + HttpHeaderStats[hoReply].ccParsedCount; |
9bea1d5b | 1575 | HttpHeaderStats[0].destroyedCount = |
62e76326 | 1576 | HttpHeaderStats[hoRequest].destroyedCount + HttpHeaderStats[hoReply].destroyedCount; |
9bea1d5b | 1577 | HttpHeaderStats[0].busyDestroyedCount = |
62e76326 | 1578 | HttpHeaderStats[hoRequest].busyDestroyedCount + HttpHeaderStats[hoReply].busyDestroyedCount; |
9bea1d5b | 1579 | |
95dc7ff4 | 1580 | for (i = 1; i < HttpHeaderStatCount; ++i) { |
62e76326 | 1581 | httpHeaderStatDump(HttpHeaderStats + i, e); |
12cf1be2 | 1582 | } |
62e76326 | 1583 | |
9bea1d5b | 1584 | /* field stats for all messages */ |
1585 | storeAppendPrintf(e, "\nHttp Fields Stats (replies and requests)\n"); | |
62e76326 | 1586 | |
077fe581 | 1587 | storeAppendPrintf(e, "%2s\t %-25s\t %5s\t %6s\t %6s\n", |
62e76326 | 1588 | "id", "name", "#alive", "%err", "%repeat"); |
1589 | ||
fda6d769 | 1590 | // scan heaaderTable and output |
81ab22b6 FC |
1591 | for (auto h : WholeEnum<Http::HdrType>()) { |
1592 | auto stats = headerStatsTable[h]; | |
fda6d769 | 1593 | storeAppendPrintf(e, "%2d\t %-25s\t %5d\t %6.3f\t %6.3f\n", |
81ab22b6 FC |
1594 | Http::HeaderLookupTable.lookup(h).id, |
1595 | Http::HeaderLookupTable.lookup(h).name, | |
92991271 | 1596 | stats.aliveCount, |
f7ad4af5 FC |
1597 | xpercent(stats.errCount, stats.parsCount), |
1598 | xpercent(stats.repCount, stats.seenCount)); | |
fda6d769 | 1599 | } |
62e76326 | 1600 | |
9bea1d5b | 1601 | storeAppendPrintf(e, "Headers Parsed: %d + %d = %d\n", |
62e76326 | 1602 | HttpHeaderStats[hoRequest].parsedCount, |
1603 | HttpHeaderStats[hoReply].parsedCount, | |
1604 | HttpHeaderStats[0].parsedCount); | |
9bea1d5b | 1605 | storeAppendPrintf(e, "Hdr Fields Parsed: %d\n", HeaderEntryParsedCount); |
cb69b4c7 | 1606 | } |
97474590 | 1607 | |
924f73bc | 1608 | int |
789217a2 | 1609 | HttpHeader::hasListMember(Http::HdrType id, const char *member, const char separator) const |
924f73bc | 1610 | { |
1611 | int result = 0; | |
1612 | const char *pos = NULL; | |
1613 | const char *item; | |
1614 | int ilen; | |
1615 | int mlen = strlen(member); | |
1616 | ||
8cccf1f8 | 1617 | assert(any_registered_header(id)); |
924f73bc | 1618 | |
30abd221 | 1619 | String header (getStrOrList(id)); |
924f73bc | 1620 | |
9d0cdbb9 | 1621 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { |
380e7faf | 1622 | if (strncasecmp(item, member, mlen) == 0 |
9d0cdbb9 | 1623 | && (item[mlen] == '=' || item[mlen] == separator || item[mlen] == ';' || item[mlen] == '\0')) { |
1624 | result = 1; | |
1625 | break; | |
1626 | } | |
1627 | } | |
1628 | ||
1629 | return result; | |
1630 | } | |
1631 | ||
1632 | int | |
a9925b40 | 1633 | HttpHeader::hasByNameListMember(const char *name, const char *member, const char separator) const |
9d0cdbb9 | 1634 | { |
1635 | int result = 0; | |
1636 | const char *pos = NULL; | |
1637 | const char *item; | |
1638 | int ilen; | |
1639 | int mlen = strlen(member); | |
1640 | ||
9d0cdbb9 | 1641 | assert(name); |
1642 | ||
30abd221 | 1643 | String header (getByName(name)); |
9d0cdbb9 | 1644 | |
924f73bc | 1645 | while (strListGetItem(&header, separator, &item, &ilen, &pos)) { |
380e7faf | 1646 | if (strncasecmp(item, member, mlen) == 0 |
924f73bc | 1647 | && (item[mlen] == '=' || item[mlen] == separator || item[mlen] == ';' || item[mlen] == '\0')) { |
1648 | result = 1; | |
1649 | break; | |
1650 | } | |
1651 | } | |
1652 | ||
1653 | return result; | |
1654 | } | |
1655 | ||
2cdeea82 | 1656 | void |
1657 | HttpHeader::removeHopByHopEntries() | |
1658 | { | |
1659 | removeConnectionHeaderEntries(); | |
26ac0430 | 1660 | |
dcf3665b AJ |
1661 | const HttpHeaderEntry *e; |
1662 | HttpHeaderPos pos = HttpHeaderInitPos; | |
1663 | int headers_deleted = 0; | |
1664 | while ((e = getEntry(&pos))) { | |
789217a2 | 1665 | Http::HdrType id = e->id; |
81ab22b6 | 1666 | if (Http::HeaderLookupTable.lookup(id).hopbyhop) { |
26ac0430 AJ |
1667 | delAt(pos, headers_deleted); |
1668 | CBIT_CLR(mask, id); | |
1669 | } | |
dcf3665b | 1670 | } |
2cdeea82 | 1671 | } |
1672 | ||
924f73bc | 1673 | void |
1674 | HttpHeader::removeConnectionHeaderEntries() | |
1675 | { | |
789217a2 | 1676 | if (has(Http::HdrType::CONNECTION)) { |
924f73bc | 1677 | /* anything that matches Connection list member will be deleted */ |
30abd221 | 1678 | String strConnection; |
26ac0430 | 1679 | |
789217a2 | 1680 | (void) getList(Http::HdrType::CONNECTION, &strConnection); |
924f73bc | 1681 | const HttpHeaderEntry *e; |
1682 | HttpHeaderPos pos = HttpHeaderInitPos; | |
1683 | /* | |
1684 | * think: on-average-best nesting of the two loops (hdrEntry | |
1685 | * and strListItem) @?@ | |
1686 | */ | |
1687 | /* | |
1688 | * maybe we should delete standard stuff ("keep-alive","close") | |
1689 | * from strConnection first? | |
1690 | */ | |
1691 | ||
ba9fb01d | 1692 | int headers_deleted = 0; |
a9925b40 | 1693 | while ((e = getEntry(&pos))) { |
9d7a89a5 | 1694 | if (strListIsMember(&strConnection, e->name.termedBuf(), ',')) |
ba9fb01d | 1695 | delAt(pos, headers_deleted); |
924f73bc | 1696 | } |
ba9fb01d | 1697 | if (headers_deleted) |
1698 | refreshMask(); | |
924f73bc | 1699 | } |
1700 | } | |
f53969cc | 1701 |