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Commit | Line | Data |
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22f3fd98 | 1 | /* |
b8ae064d | 2 | * Copyright (C) 1996-2023 The Squid Software Foundation and contributors |
e25c139f | 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. | |
22f3fd98 | 7 | */ |
8 | ||
bbc27441 AJ |
9 | /* DEBUG: section 16 Cache Manager Objects */ |
10 | ||
f7f3304a | 11 | #include "squid.h" |
7e6eabbc | 12 | #include "AccessLogEntry.h" |
8822ebee | 13 | #include "base/TextException.h" |
62ee09ca | 14 | #include "CacheManager.h" |
5c336a3b | 15 | #include "comm/Connection.h" |
675b8408 | 16 | #include "debug/Stream.h" |
26e65059 | 17 | #include "error/ExceptionErrorDetail.h" |
53521734 | 18 | #include "errorpage.h" |
8822ebee | 19 | #include "fde.h" |
92a5adb7 | 20 | #include "HttpHdrCc.h" |
528b2c61 | 21 | #include "HttpReply.h" |
22 | #include "HttpRequest.h" | |
8822ebee | 23 | #include "mgr/Action.h" |
602d9612 A |
24 | #include "mgr/ActionCreator.h" |
25 | #include "mgr/ActionPasswordList.h" | |
8822ebee AR |
26 | #include "mgr/ActionProfile.h" |
27 | #include "mgr/BasicActions.h" | |
28 | #include "mgr/Command.h" | |
29 | #include "mgr/Forwarder.h" | |
30 | #include "mgr/FunAction.h" | |
b8151fa1 | 31 | #include "mgr/QueryParams.h" |
26e65059 | 32 | #include "parser/Tokenizer.h" |
592b8687 | 33 | #include "protos.h" |
26e65059 | 34 | #include "sbuf/Stream.h" |
2582f64a | 35 | #include "sbuf/StringConvert.h" |
4d5904f7 | 36 | #include "SquidConfig.h" |
8822ebee | 37 | #include "Store.h" |
602d9612 | 38 | #include "tools.h" |
d295d770 | 39 | #include "wordlist.h" |
5bed43d6 | 40 | |
8822ebee | 41 | #include <algorithm> |
92a5adb7 | 42 | #include <memory> |
22f3fd98 | 43 | |
63be0a78 | 44 | /// \ingroup CacheManagerInternal |
22f3fd98 | 45 | #define MGR_PASSWD_SZ 128 |
46 | ||
8822ebee AR |
47 | /// creates Action using supplied Action::Create method and command |
48 | class ClassActionCreator: public Mgr::ActionCreator | |
49 | { | |
50 | public: | |
51 | typedef Mgr::Action::Pointer Handler(const Mgr::Command::Pointer &cmd); | |
c83f0bd5 | 52 | |
8822ebee AR |
53 | public: |
54 | ClassActionCreator(Handler *aHandler): handler(aHandler) {} | |
55 | ||
337b9aa4 | 56 | Mgr::Action::Pointer create(const Mgr::Command::Pointer &cmd) const override { |
8822ebee AR |
57 | return handler(cmd); |
58 | } | |
59 | ||
60 | private: | |
61 | Handler *handler; | |
62 | }; | |
63 | ||
8822ebee AR |
64 | /// Registers new profiles, ignoring attempts to register a duplicate |
65 | void | |
66 | CacheManager::registerProfile(const Mgr::ActionProfile::Pointer &profile) | |
62ee09ca | 67 | { |
aee3523a | 68 | Must(profile != nullptr); |
e3c2ea01 | 69 | if (!CacheManager::findAction(profile->name)) { |
8822ebee | 70 | menu_.push_back(profile); |
bf95c10a | 71 | debugs(16, 3, "registered profile: " << *profile); |
8822ebee | 72 | } else { |
bf95c10a | 73 | debugs(16, 2, "skipped duplicate profile: " << *profile); |
8822ebee | 74 | } |
62ee09ca | 75 | } |
22f3fd98 | 76 | |
50847dca AJ |
77 | /** |
78 | \ingroup CacheManagerAPI | |
79 | * Registers a C-style action, which is implemented as a pointer to a function | |
80 | * taking as argument a pointer to a StoreEntry and returning void. | |
81 | * Implemented via CacheManagerActionLegacy. | |
82 | */ | |
22f3fd98 | 83 | void |
8822ebee | 84 | CacheManager::registerProfile(char const * action, char const * desc, OBJH * handler, int pw_req_flag, int atomic) |
22f3fd98 | 85 | { |
bf95c10a | 86 | debugs(16, 3, "registering legacy " << action); |
8822ebee | 87 | const Mgr::ActionProfile::Pointer profile = new Mgr::ActionProfile(action, |
d9fc6862 | 88 | desc, pw_req_flag, atomic, new Mgr::FunActionCreator(handler)); |
8822ebee | 89 | registerProfile(profile); |
1d8395bd | 90 | } |
62e76326 | 91 | |
d154d3ec | 92 | /** |
e0d28505 | 93 | * \ingroup CacheManagerAPI |
a750e510 | 94 | * Registers a C++-style action, via a pointer to a subclass of |
d154d3ec FC |
95 | * a CacheManagerAction object, whose run() method will be invoked when |
96 | * CacheManager identifies that the user has requested the action. | |
97 | */ | |
1d8395bd | 98 | void |
8822ebee | 99 | CacheManager::registerProfile(char const * action, char const * desc, |
d9fc6862 A |
100 | ClassActionCreator::Handler *handler, |
101 | int pw_req_flag, int atomic) | |
1d8395bd | 102 | { |
8822ebee | 103 | const Mgr::ActionProfile::Pointer profile = new Mgr::ActionProfile(action, |
d9fc6862 | 104 | desc, pw_req_flag, atomic, new ClassActionCreator(handler)); |
8822ebee | 105 | registerProfile(profile); |
62ee09ca | 106 | } |
107 | ||
d154d3ec FC |
108 | /** |
109 | \ingroup CacheManagerInternal | |
110 | * Locates an action in the actions registry ActionsList. | |
111 | \retval NULL if Action not found | |
112 | \retval CacheManagerAction* if the action was found | |
113 | */ | |
8822ebee AR |
114 | Mgr::ActionProfile::Pointer |
115 | CacheManager::findAction(char const * action) const | |
22f3fd98 | 116 | { |
aee3523a | 117 | Must(action != nullptr); |
8822ebee | 118 | Menu::const_iterator a; |
03c4599f K |
119 | |
120 | debugs(16, 5, "CacheManager::findAction: looking for action " << action); | |
8822ebee AR |
121 | for (a = menu_.begin(); a != menu_.end(); ++a) { |
122 | if (0 == strcmp((*a)->name, action)) { | |
03c4599f K |
123 | debugs(16, 6, " found"); |
124 | return *a; | |
125 | } | |
22f3fd98 | 126 | } |
62e76326 | 127 | |
03c4599f | 128 | debugs(16, 6, "Action not found."); |
8822ebee AR |
129 | return Mgr::ActionProfilePointer(); |
130 | } | |
131 | ||
132 | Mgr::Action::Pointer | |
133 | CacheManager::createNamedAction(const char *actionName) | |
134 | { | |
135 | Must(actionName); | |
136 | ||
137 | Mgr::Command::Pointer cmd = new Mgr::Command; | |
138 | cmd->profile = findAction(actionName); | |
139 | cmd->params.actionName = actionName; | |
140 | ||
aee3523a | 141 | Must(cmd->profile != nullptr); |
8822ebee AR |
142 | return cmd->profile->creator->create(cmd); |
143 | } | |
144 | ||
145 | Mgr::Action::Pointer | |
146 | CacheManager::createRequestedAction(const Mgr::ActionParams ¶ms) | |
147 | { | |
148 | Mgr::Command::Pointer cmd = new Mgr::Command; | |
149 | cmd->params = params; | |
150 | cmd->profile = findAction(params.actionName.termedBuf()); | |
aee3523a | 151 | Must(cmd->profile != nullptr); |
8822ebee | 152 | return cmd->profile->creator->create(cmd); |
22f3fd98 | 153 | } |
154 | ||
832c08ab | 155 | /** |
7902bd5b EB |
156 | * Parses the action requested by the user and checks via |
157 | * CacheManager::ActionProtection() that the item is accessible by the user. | |
26e65059 AJ |
158 | * |
159 | * Syntax: | |
160 | * | |
7902bd5b | 161 | * [ scheme "://" authority ] '/squid-internal-mgr' path-absolute [ "?" query ] [ "#" fragment ] |
26e65059 | 162 | * |
7902bd5b | 163 | * see RFC 3986 for definitions of scheme, authority, path-absolute, query |
26e65059 AJ |
164 | * |
165 | * \returns Mgr::Command object with action to perform and parameters it might use | |
832c08ab | 166 | */ |
8822ebee | 167 | Mgr::Command::Pointer |
26e65059 | 168 | CacheManager::ParseUrl(const AnyP::Uri &uri) |
22f3fd98 | 169 | { |
26e65059 | 170 | Parser::Tokenizer tok(uri.path()); |
8822ebee | 171 | |
26e65059 | 172 | static const SBuf internalMagicPrefix("/squid-internal-mgr/"); |
7902bd5b | 173 | Assure(tok.skip(internalMagicPrefix)); |
62e76326 | 174 | |
26e65059 AJ |
175 | Mgr::Command::Pointer cmd = new Mgr::Command(); |
176 | cmd->params.httpUri = SBufToString(uri.absolute()); | |
5366b99b | 177 | |
7902bd5b | 178 | static const auto fieldChars = CharacterSet("mgr-field", "?#").complement(); |
26e65059 AJ |
179 | |
180 | SBuf action; | |
181 | if (!tok.prefix(action, fieldChars)) { | |
7902bd5b EB |
182 | static const SBuf indexReport("index"); |
183 | action = indexReport; | |
22f3fd98 | 184 | } |
26e65059 AJ |
185 | cmd->params.actionName = SBufToString(action); |
186 | ||
187 | const auto profile = findAction(action.c_str()); | |
188 | if (!profile) | |
189 | throw TextException(ToSBuf("action '", action, "' not found"), Here()); | |
62e76326 | 190 | |
8822ebee | 191 | const char *prot = ActionProtection(profile); |
26e65059 AJ |
192 | if (!strcmp(prot, "disabled") || !strcmp(prot, "hidden")) |
193 | throw TextException(ToSBuf("action '", action, "' is ", prot), Here()); | |
194 | cmd->profile = profile; | |
195 | ||
26e65059 AJ |
196 | // TODO: fix when AnyP::Uri::parse() separates path?query#fragment |
197 | SBuf params; | |
198 | if (tok.skip('?')) { | |
199 | params = tok.remaining(); | |
200 | Mgr::QueryParams::Parse(tok, cmd->params.queryParams); | |
201 | } | |
202 | ||
203 | if (!tok.skip('#') && !tok.atEnd()) | |
204 | throw TextException("invalid characters in URL", Here()); | |
205 | // else ignore #fragment (if any) | |
206 | ||
7902bd5b | 207 | debugs(16, 3, "MGR request: host=" << uri.host() << ", action=" << action << ", params=" << params); |
26e65059 | 208 | |
8822ebee | 209 | return cmd; |
22f3fd98 | 210 | } |
211 | ||
63be0a78 | 212 | /// \ingroup CacheManagerInternal |
832c08ab FC |
213 | /* |
214 | \ingroup CacheManagerInternal | |
215 | * Decodes the headers needed to perform user authentication and fills | |
216 | * the details into the cachemgrStateData argument | |
217 | */ | |
c83f0bd5 | 218 | void |
8822ebee | 219 | CacheManager::ParseHeaders(const HttpRequest * request, Mgr::ActionParams ¶ms) |
63259c34 | 220 | { |
8822ebee AR |
221 | assert(request); |
222 | ||
223 | params.httpMethod = request->method.id(); | |
224 | params.httpFlags = request->flags; | |
225 | ||
9da6b594 AJ |
226 | #if HAVE_AUTH_MODULE_BASIC |
227 | // TODO: use the authentication system decode to retrieve these details properly. | |
228 | ||
229 | /* base 64 _decoded_ user:passwd pair */ | |
2582f64a | 230 | const auto basic_cookie(request->header.getAuthToken(Http::HdrType::AUTHORIZATION, "Basic")); |
62e76326 | 231 | |
2582f64a | 232 | if (basic_cookie.isEmpty()) |
62e76326 | 233 | return; |
234 | ||
2582f64a AJ |
235 | const auto colonPos = basic_cookie.find(':'); |
236 | if (colonPos == SBuf::npos) { | |
d816f28d | 237 | debugs(16, DBG_IMPORTANT, "ERROR: CacheManager::ParseHeaders: unknown basic_cookie format '" << basic_cookie << "'"); |
62e76326 | 238 | return; |
63259c34 | 239 | } |
62e76326 | 240 | |
63259c34 | 241 | /* found user:password pair, reset old values */ |
2582f64a AJ |
242 | params.userName = SBufToString(basic_cookie.substr(0, colonPos)); |
243 | params.password = SBufToString(basic_cookie.substr(colonPos+1)); | |
62e76326 | 244 | |
9da6b594 | 245 | /* warning: this prints decoded password which maybe not be what you want to do @?@ @?@ */ |
8822ebee | 246 | debugs(16, 9, "CacheManager::ParseHeaders: got user: '" << |
d9fc6862 | 247 | params.userName << "' passwd: '" << params.password << "'"); |
9da6b594 | 248 | #endif |
63259c34 | 249 | } |
250 | ||
63be0a78 | 251 | /** |
252 | \ingroup CacheManagerInternal | |
253 | * | |
f53969cc SM |
254 | \retval 0 if mgr->password is good or "none" |
255 | \retval 1 if mgr->password is "disable" | |
256 | \retval !0 if mgr->password does not match configured password | |
22f3fd98 | 257 | */ |
c83f0bd5 | 258 | int |
8822ebee | 259 | CacheManager::CheckPassword(const Mgr::Command &cmd) |
22f3fd98 | 260 | { |
aee3523a | 261 | assert(cmd.profile != nullptr); |
8822ebee AR |
262 | const char *action = cmd.profile->name; |
263 | char *pwd = PasswdGet(Config.passwd_list, action); | |
03c4599f | 264 | |
8822ebee | 265 | debugs(16, 4, "CacheManager::CheckPassword for action " << action); |
62e76326 | 266 | |
aee3523a | 267 | if (pwd == nullptr) |
8822ebee | 268 | return cmd.profile->isPwReq; |
62e76326 | 269 | |
22f3fd98 | 270 | if (strcmp(pwd, "disable") == 0) |
62e76326 | 271 | return 1; |
272 | ||
22f3fd98 | 273 | if (strcmp(pwd, "none") == 0) |
62e76326 | 274 | return 0; |
275 | ||
8822ebee | 276 | if (!cmd.params.password.size()) |
62e76326 | 277 | return 1; |
278 | ||
8822ebee | 279 | return cmd.params.password != pwd; |
22f3fd98 | 280 | } |
281 | ||
832c08ab FC |
282 | /** |
283 | \ingroup CacheManagerAPI | |
284 | * Main entry point in the Cache Manager's activity. Gets called as part | |
285 | * of the forward chain if the right URL is detected there. Initiates | |
286 | * all needed internal work and renders the response. | |
287 | */ | |
22f3fd98 | 288 | void |
7e6eabbc | 289 | CacheManager::start(const Comm::ConnectionPointer &client, HttpRequest *request, StoreEntry *entry, const AccessLogEntry::Pointer &ale) |
22f3fd98 | 290 | { |
26e65059 | 291 | debugs(16, 3, "request-url= '" << request->url << "', entry-url='" << entry->url() << "'"); |
62e76326 | 292 | |
26e65059 AJ |
293 | Mgr::Command::Pointer cmd; |
294 | try { | |
295 | cmd = ParseUrl(request->url); | |
296 | ||
297 | } catch (...) { | |
298 | debugs(16, 2, "request URL error: " << CurrentException); | |
7e6eabbc | 299 | const auto err = new ErrorState(ERR_INVALID_URL, Http::scNotFound, request, ale); |
3900307b | 300 | err->url = xstrdup(entry->url()); |
26e65059 | 301 | err->detailError(new ExceptionErrorDetail(Here().id())); |
62e76326 | 302 | errorAppendEntry(entry, err); |
303 | entry->expires = squid_curtime; | |
304 | return; | |
22f3fd98 | 305 | } |
62e76326 | 306 | |
8822ebee | 307 | const char *actionName = cmd->profile->name; |
34266cde | 308 | |
22f3fd98 | 309 | entry->expires = squid_curtime; |
34266cde | 310 | |
a750e510 | 311 | debugs(16, 5, "CacheManager: " << client << " requesting '" << actionName << "'"); |
34266cde | 312 | |
63259c34 | 313 | /* get additional info from request headers */ |
8822ebee AR |
314 | ParseHeaders(request, cmd->params); |
315 | ||
316 | const char *userName = cmd->params.userName.size() ? | |
d9fc6862 | 317 | cmd->params.userName.termedBuf() : "unknown"; |
34266cde | 318 | |
22f3fd98 | 319 | /* Check password */ |
62e76326 | 320 | |
8822ebee | 321 | if (CheckPassword(*cmd) != 0) { |
62e76326 | 322 | /* build error message */ |
7e6eabbc | 323 | ErrorState errState(ERR_CACHE_MGR_ACCESS_DENIED, Http::scUnauthorized, request, ale); |
62e76326 | 324 | /* warn if user specified incorrect password */ |
325 | ||
8822ebee | 326 | if (cmd->params.password.size()) { |
26ac0430 | 327 | debugs(16, DBG_IMPORTANT, "CacheManager: " << |
8822ebee | 328 | userName << "@" << |
5c336a3b | 329 | client << ": incorrect password for '" << |
8822ebee AR |
330 | actionName << "'" ); |
331 | } else { | |
26ac0430 | 332 | debugs(16, DBG_IMPORTANT, "CacheManager: " << |
8822ebee | 333 | userName << "@" << |
5c336a3b | 334 | client << ": password needed for '" << |
8822ebee AR |
335 | actionName << "'" ); |
336 | } | |
62e76326 | 337 | |
913524f0 | 338 | HttpReply *rep = errState.BuildHttpReply(); |
62e76326 | 339 | |
9da6b594 | 340 | #if HAVE_AUTH_MODULE_BASIC |
62e76326 | 341 | /* |
8822ebee AR |
342 | * add Authenticate header using action name as a realm because |
343 | * password depends on the action | |
62e76326 | 344 | */ |
8822ebee | 345 | rep->header.putAuth("Basic", actionName); |
9da6b594 | 346 | #endif |
92a5adb7 AR |
347 | |
348 | const auto originOrNil = request->header.getStr(Http::HdrType::ORIGIN); | |
349 | PutCommonResponseHeaders(*rep, originOrNil); | |
62e76326 | 350 | |
351 | /* store the reply */ | |
db237875 | 352 | entry->replaceHttpReply(rep); |
62e76326 | 353 | |
354 | entry->expires = squid_curtime; | |
355 | ||
356 | entry->complete(); | |
357 | ||
62e76326 | 358 | return; |
22f3fd98 | 359 | } |
62e76326 | 360 | |
789217a2 FC |
361 | if (request->header.has(Http::HdrType::ORIGIN)) { |
362 | cmd->params.httpOrigin = request->header.getStr(Http::HdrType::ORIGIN); | |
3865965d AJ |
363 | } |
364 | ||
0be039f4 | 365 | debugs(16, 2, "CacheManager: " << |
8822ebee | 366 | userName << "@" << |
5c336a3b | 367 | client << " requesting '" << |
8822ebee | 368 | actionName << "'" ); |
62e76326 | 369 | |
b073fc4b AJ |
370 | // special case: /squid-internal-mgr/ index page |
371 | if (!strcmp(cmd->profile->name, "index")) { | |
7e6eabbc | 372 | ErrorState err(MGR_INDEX, Http::scOkay, request, ale); |
b073fc4b AJ |
373 | err.url = xstrdup(entry->url()); |
374 | HttpReply *rep = err.BuildHttpReply(); | |
375 | if (strncmp(rep->body.content(),"Internal Error:", 15) == 0) | |
9b769c67 | 376 | rep->sline.set(Http::ProtocolVersion(1,1), Http::scNotFound); |
92a5adb7 AR |
377 | |
378 | const auto originOrNil = request->header.getStr(Http::HdrType::ORIGIN); | |
379 | PutCommonResponseHeaders(*rep, originOrNil); | |
380 | ||
b073fc4b AJ |
381 | entry->replaceHttpReply(rep); |
382 | entry->complete(); | |
383 | return; | |
384 | } | |
385 | ||
8822ebee | 386 | if (UsingSmp() && IamWorkerProcess()) { |
1b76e6c1 | 387 | // is client the right connection to pass here? |
7e6eabbc | 388 | AsyncJob::Start(new Mgr::Forwarder(client, cmd->params, request, entry, ale)); |
8822ebee | 389 | return; |
cb69b4c7 | 390 | } |
62e76326 | 391 | |
8822ebee | 392 | Mgr::Action::Pointer action = cmd->profile->creator->create(cmd); |
aee3523a | 393 | Must(action != nullptr); |
8822ebee | 394 | action->run(entry, true); |
22f3fd98 | 395 | } |
396 | ||
832c08ab FC |
397 | /* |
398 | \ingroup CacheManagerInternal | |
399 | * Renders the protection level text for an action. | |
400 | * Also doubles as a check for the protection level. | |
832c08ab | 401 | */ |
c83f0bd5 | 402 | const char * |
8822ebee | 403 | CacheManager::ActionProtection(const Mgr::ActionProfile::Pointer &profile) |
7395afb8 | 404 | { |
aee3523a | 405 | assert(profile != nullptr); |
8822ebee | 406 | const char *pwd = PasswdGet(Config.passwd_list, profile->name); |
62e76326 | 407 | |
7395afb8 | 408 | if (!pwd) |
8822ebee | 409 | return profile->isPwReq ? "hidden" : "public"; |
62e76326 | 410 | |
7395afb8 | 411 | if (!strcmp(pwd, "disable")) |
62e76326 | 412 | return "disabled"; |
413 | ||
7395afb8 | 414 | if (strcmp(pwd, "none") == 0) |
62e76326 | 415 | return "public"; |
416 | ||
7395afb8 | 417 | return "protected"; |
418 | } | |
419 | ||
832c08ab | 420 | /* |
ee82937c | 421 | * \ingroup CacheManagerInternal |
832c08ab FC |
422 | * gets from the global Config the password the user would need to supply |
423 | * for the action she queried | |
424 | */ | |
c83f0bd5 | 425 | char * |
613924ee | 426 | CacheManager::PasswdGet(Mgr::ActionPasswordList * a, const char *action) |
22f3fd98 | 427 | { |
a5f27c62 AJ |
428 | while (a) { |
429 | for (auto &w : a->actions) { | |
430 | if (w.cmp(action) == 0) | |
62e76326 | 431 | return a->passwd; |
432 | ||
a5f27c62 AJ |
433 | static const SBuf allAction("all"); |
434 | if (w == allAction) | |
62e76326 | 435 | return a->passwd; |
436 | } | |
437 | ||
438 | a = a->next; | |
22f3fd98 | 439 | } |
62e76326 | 440 | |
aee3523a | 441 | return nullptr; |
22f3fd98 | 442 | } |
c83f0bd5 | 443 | |
92a5adb7 AR |
444 | void |
445 | CacheManager::PutCommonResponseHeaders(HttpReply &response, const char *httpOrigin) | |
446 | { | |
447 | // Allow cachemgr and other XHR scripts access to our version string | |
448 | if (httpOrigin) { | |
449 | response.header.putExt("Access-Control-Allow-Origin", httpOrigin); | |
450 | #if HAVE_AUTH_MODULE_BASIC | |
451 | response.header.putExt("Access-Control-Allow-Credentials", "true"); | |
452 | #endif | |
453 | response.header.putExt("Access-Control-Expose-Headers", "Server"); | |
454 | } | |
455 | ||
456 | std::unique_ptr<HttpHdrCc> cc(new HttpHdrCc()); | |
457 | // this is honored by more caches but allows pointless revalidation; | |
458 | // revalidation will always fail because we do not support it (yet?) | |
459 | cc->noCache(String()); | |
460 | // this is honored by fewer caches but prohibits pointless revalidation | |
461 | cc->noStore(true); | |
462 | response.putCc(cc.release()); | |
463 | } | |
464 | ||
c83f0bd5 | 465 | CacheManager* |
26ac0430 AJ |
466 | CacheManager::GetInstance() |
467 | { | |
f0ffd7c3 | 468 | static CacheManager *instance = nullptr; |
7658a296 AJ |
469 | if (!instance) { |
470 | debugs(16, 6, "starting cachemanager up"); | |
26ac0430 | 471 | instance = new CacheManager; |
8822ebee | 472 | Mgr::RegisterBasics(); |
26ac0430 AJ |
473 | } |
474 | return instance; | |
c83f0bd5 | 475 | } |
53521734 | 476 |