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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/net/view_net_internals_job_factory.h" | |
| 6 | |
| 7 #include <sstream> | |
| 8 | |
| 9 #include "base/format_macros.h" | |
| 10 #include "base/stl_util-inl.h" | |
| 11 #include "base/string_util.h" | |
| 12 #include "chrome/browser/net/chrome_net_log.h" | |
| 13 #include "chrome/browser/net/chrome_url_request_context.h" | |
| 14 #include "chrome/browser/net/passive_log_collector.h" | |
| 15 #include "chrome/common/url_constants.h" | |
| 16 #include "net/base/escape.h" | |
| 17 #include "net/base/host_resolver_impl.h" | |
| 18 #include "net/base/net_errors.h" | |
| 19 #include "net/base/net_log_util.h" | |
| 20 #include "net/base/net_util.h" | |
| 21 #include "net/base/sys_addrinfo.h" | |
| 22 #include "net/proxy/proxy_service.h" | |
| 23 #include "net/socket_stream/socket_stream.h" | |
| 24 #include "net/url_request/url_request.h" | |
| 25 #include "net/url_request/url_request_context.h" | |
| 26 #include "net/url_request/url_request_simple_job.h" | |
| 27 #include "net/url_request/view_cache_helper.h" | |
| 28 | |
| 29 namespace { | |
| 30 | |
| 31 const char kViewHttpCacheSubPath[] = "view-cache"; | |
| 32 | |
| 33 // TODO(eroman): Delete this file. It should be replaced by | |
| 34 // chrome/browser/dom_ui/net_internals_ui.cc once the porting is | |
| 35 // complete. | |
| 36 | |
| 37 PassiveLogCollector* GetPassiveLogCollector(URLRequestContext* context) { | |
| 38 // Really this is the same as: | |
| 39 // g_browser_process->io_thread()->globals()-> | |
| 40 // net_log.get() | |
| 41 // (But we can't access g_browser_process from the IO thread). | |
| 42 ChromeNetLog* chrome_net_log = static_cast<ChromeNetLog*>( | |
| 43 static_cast<ChromeURLRequestContext*>(context)->net_log()); | |
| 44 return chrome_net_log->passive_collector(); | |
| 45 } | |
| 46 | |
| 47 PassiveLogCollector::RequestTracker* GetURLRequestTracker( | |
| 48 URLRequestContext* context) { | |
| 49 return GetPassiveLogCollector(context)->url_request_tracker(); | |
| 50 } | |
| 51 | |
| 52 PassiveLogCollector::RequestTracker* GetSocketStreamTracker( | |
| 53 URLRequestContext* context) { | |
| 54 return GetPassiveLogCollector(context)->socket_stream_tracker(); | |
| 55 } | |
| 56 | |
| 57 PassiveLogCollector::InitProxyResolverTracker* GetInitProxyResolverTracker( | |
| 58 URLRequestContext* context) { | |
| 59 return GetPassiveLogCollector(context)->init_proxy_resolver_tracker(); | |
| 60 } | |
| 61 | |
| 62 std::string GetDetails(const GURL& url) { | |
| 63 DCHECK(ViewNetInternalsJobFactory::IsSupportedURL(url)); | |
| 64 size_t start = strlen(chrome::kNetworkViewInternalsURL); | |
| 65 if (start >= url.spec().size()) | |
| 66 return std::string(); | |
| 67 return url.spec().substr(start); | |
| 68 } | |
| 69 | |
| 70 GURL MakeURL(const std::string& details) { | |
| 71 return GURL(std::string(chrome::kNetworkViewInternalsURL) + details); | |
| 72 } | |
| 73 | |
| 74 // Converts a PassiveLogCollector::EntryList to a CapturingNetLog::EntryList. | |
| 75 // | |
| 76 // They are basically the same thing, except PassiveLogCollector has an extra | |
| 77 // "order" field which we will drop. | |
| 78 net::CapturingNetLog::EntryList ConvertEntryList( | |
| 79 const PassiveLogCollector::EntryList& input) { | |
| 80 net::CapturingNetLog::EntryList result; | |
| 81 for (size_t i = 0; i < input.size(); ++i) { | |
| 82 result.push_back( | |
| 83 net::CapturingNetLog::Entry( | |
| 84 input[i].type, | |
| 85 input[i].time, | |
| 86 input[i].source, | |
| 87 input[i].phase, | |
| 88 input[i].extra_parameters)); | |
| 89 } | |
| 90 return result; | |
| 91 } | |
| 92 | |
| 93 // A job subclass that implements a protocol to inspect the internal | |
| 94 // state of the network stack. | |
| 95 class ViewNetInternalsJob : public URLRequestSimpleJob { | |
| 96 public: | |
| 97 | |
| 98 explicit ViewNetInternalsJob(URLRequest* request) | |
| 99 : URLRequestSimpleJob(request) {} | |
| 100 | |
| 101 // URLRequestSimpleJob methods: | |
| 102 virtual bool GetData(std::string* mime_type, | |
| 103 std::string* charset, | |
| 104 std::string* data) const; | |
| 105 | |
| 106 // Overridden methods from URLRequestJob: | |
| 107 virtual bool IsRedirectResponse(GURL* location, int* http_status_code); | |
| 108 | |
| 109 private: | |
| 110 ~ViewNetInternalsJob() {} | |
| 111 | |
| 112 // Returns true if the current request is for a "view-cache" URL. | |
| 113 // If it is, then |key| is assigned the particular cache URL of the request. | |
| 114 bool GetViewCacheKeyForRequest(std::string* key) const; | |
| 115 }; | |
| 116 | |
| 117 //------------------------------------------------------------------------------ | |
| 118 // Format helpers. | |
| 119 //------------------------------------------------------------------------------ | |
| 120 | |
| 121 void OutputTextInPre(const std::string& text, std::string* out) { | |
| 122 out->append("<pre>"); | |
| 123 out->append(EscapeForHTML(text)); | |
| 124 out->append("</pre>"); | |
| 125 } | |
| 126 | |
| 127 // Appends an input button to |data| with text |title| that sends the command | |
| 128 // string |command| back to the browser, and then refreshes the page. | |
| 129 void DrawCommandButton(const std::string& title, | |
| 130 const std::string& command, | |
| 131 std::string* data) { | |
| 132 StringAppendF(data, "<input type=\"button\" value=\"%s\" " | |
| 133 "onclick=\"DoCommand('%s')\" />", | |
| 134 title.c_str(), | |
| 135 command.c_str()); | |
| 136 } | |
| 137 | |
| 138 //------------------------------------------------------------------------------ | |
| 139 // URLRequestContext helpers. | |
| 140 //------------------------------------------------------------------------------ | |
| 141 | |
| 142 net::HostResolverImpl* GetHostResolverImpl(URLRequestContext* context) { | |
| 143 return context->host_resolver()->GetAsHostResolverImpl(); | |
| 144 } | |
| 145 | |
| 146 net::HostCache* GetHostCache(URLRequestContext* context) { | |
| 147 if (GetHostResolverImpl(context)) | |
| 148 return GetHostResolverImpl(context)->cache(); | |
| 149 return NULL; | |
| 150 } | |
| 151 | |
| 152 //------------------------------------------------------------------------------ | |
| 153 // Subsection definitions. | |
| 154 //------------------------------------------------------------------------------ | |
| 155 | |
| 156 class SubSection { | |
| 157 public: | |
| 158 // |name| is the URL path component for this subsection. | |
| 159 // |title| is the textual description. | |
| 160 SubSection(SubSection* parent, const char* name, const char* title) | |
| 161 : parent_(parent), | |
| 162 name_(name), | |
| 163 title_(title) { | |
| 164 } | |
| 165 | |
| 166 virtual ~SubSection() { | |
| 167 STLDeleteContainerPointers(children_.begin(), children_.end()); | |
| 168 } | |
| 169 | |
| 170 // Outputs the subsection's contents to |out|. | |
| 171 virtual void OutputBody(URLRequestContext* context, std::string* out) {} | |
| 172 | |
| 173 // Outputs this subsection, and all of its children. | |
| 174 void OutputRecursive(URLRequestContext* context, std::string* out) { | |
| 175 if (!is_root()) { | |
| 176 // Canonicalizing the URL escapes characters which cause problems in HTML. | |
| 177 std::string section_url = MakeURL(GetFullyQualifiedName()).spec(); | |
| 178 | |
| 179 // Print the heading. | |
| 180 StringAppendF( | |
| 181 out, | |
| 182 "<div>" | |
| 183 "<span class=subsection_title>%s</span> " | |
| 184 "<span class=subsection_name>(<a href='%s'>%s</a>)<span>" | |
| 185 "</div>", | |
| 186 EscapeForHTML(title_).c_str(), | |
| 187 section_url.c_str(), | |
| 188 EscapeForHTML(section_url).c_str()); | |
| 189 | |
| 190 out->append("<div class=subsection_body>"); | |
| 191 } | |
| 192 | |
| 193 OutputBody(context, out); | |
| 194 | |
| 195 for (size_t i = 0; i < children_.size(); ++i) | |
| 196 children_[i]->OutputRecursive(context, out); | |
| 197 | |
| 198 if (!is_root()) | |
| 199 out->append("</div>"); | |
| 200 } | |
| 201 | |
| 202 // Returns the SubSection contained by |this| with fully qualified name | |
| 203 // |dotted_name|, or NULL if none was found. | |
| 204 SubSection* FindSubSectionByName(const std::string& dotted_name) { | |
| 205 if (dotted_name == "") | |
| 206 return this; | |
| 207 | |
| 208 std::string child_name; | |
| 209 std::string child_sub_name; | |
| 210 | |
| 211 size_t split_pos = dotted_name.find('.'); | |
| 212 if (split_pos == std::string::npos) { | |
| 213 child_name = dotted_name; | |
| 214 child_sub_name = std::string(); | |
| 215 } else { | |
| 216 child_name = dotted_name.substr(0, split_pos); | |
| 217 child_sub_name = dotted_name.substr(split_pos + 1); | |
| 218 } | |
| 219 | |
| 220 for (size_t i = 0; i < children_.size(); ++i) { | |
| 221 if (children_[i]->name_ == child_name) | |
| 222 return children_[i]->FindSubSectionByName(child_sub_name); | |
| 223 } | |
| 224 | |
| 225 return NULL; // Not found. | |
| 226 } | |
| 227 | |
| 228 std::string GetFullyQualifiedName() { | |
| 229 if (!parent_) | |
| 230 return name_; | |
| 231 | |
| 232 std::string parent_name = parent_->GetFullyQualifiedName(); | |
| 233 if (parent_name.empty()) | |
| 234 return name_; | |
| 235 | |
| 236 return parent_name + "." + name_; | |
| 237 } | |
| 238 | |
| 239 bool is_root() const { | |
| 240 return parent_ == NULL; | |
| 241 } | |
| 242 | |
| 243 protected: | |
| 244 typedef std::vector<SubSection*> SubSectionList; | |
| 245 | |
| 246 void AddSubSection(SubSection* subsection) { | |
| 247 children_.push_back(subsection); | |
| 248 } | |
| 249 | |
| 250 SubSection* parent_; | |
| 251 std::string name_; | |
| 252 std::string title_; | |
| 253 | |
| 254 SubSectionList children_; | |
| 255 }; | |
| 256 | |
| 257 class ProxyServiceCurrentConfigSubSection : public SubSection { | |
| 258 public: | |
| 259 explicit ProxyServiceCurrentConfigSubSection(SubSection* parent) | |
| 260 : SubSection(parent, "config", "Current configuration") { | |
| 261 } | |
| 262 | |
| 263 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 264 DrawCommandButton("Force reload", "reload-proxy-config", out); | |
| 265 | |
| 266 net::ProxyService* proxy_service = context->proxy_service(); | |
| 267 if (proxy_service->config_has_been_initialized()) { | |
| 268 // net::ProxyConfig defines an operator<<. | |
| 269 std::ostringstream stream; | |
| 270 stream << proxy_service->config(); | |
| 271 OutputTextInPre(stream.str(), out); | |
| 272 } else { | |
| 273 out->append("<i>Not yet initialized</i>"); | |
| 274 } | |
| 275 } | |
| 276 }; | |
| 277 | |
| 278 class ProxyServiceLastInitLogSubSection : public SubSection { | |
| 279 public: | |
| 280 explicit ProxyServiceLastInitLogSubSection(SubSection* parent) | |
| 281 : SubSection(parent, "init_log", "Last initialized load log") { | |
| 282 } | |
| 283 | |
| 284 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 285 OutputTextInPre( | |
| 286 net::NetLogUtil::PrettyPrintAsEventTree( | |
| 287 ConvertEntryList(GetInitProxyResolverTracker(context)->entries()), | |
| 288 0), | |
| 289 out); | |
| 290 } | |
| 291 }; | |
| 292 | |
| 293 class ProxyServiceBadProxiesSubSection : public SubSection { | |
| 294 public: | |
| 295 explicit ProxyServiceBadProxiesSubSection(SubSection* parent) | |
| 296 : SubSection(parent, "bad_proxies", "Bad Proxies") { | |
| 297 } | |
| 298 | |
| 299 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 300 net::ProxyService* proxy_service = context->proxy_service(); | |
| 301 const net::ProxyRetryInfoMap& bad_proxies_map = | |
| 302 proxy_service->proxy_retry_info(); | |
| 303 | |
| 304 DrawCommandButton("Clear", "clear-badproxies", out); | |
| 305 | |
| 306 out->append("<table border=1>"); | |
| 307 out->append("<tr><th>Bad proxy server</th>" | |
| 308 "<th>Remaining time until retry (ms)</th></tr>"); | |
| 309 | |
| 310 for (net::ProxyRetryInfoMap::const_iterator it = bad_proxies_map.begin(); | |
| 311 it != bad_proxies_map.end(); ++it) { | |
| 312 const std::string& proxy_uri = it->first; | |
| 313 const net::ProxyRetryInfo& retry_info = it->second; | |
| 314 | |
| 315 // Note that ttl_ms may be negative, for the cases where entries have | |
| 316 // expired but not been garbage collected yet. | |
| 317 int ttl_ms = static_cast<int>( | |
| 318 (retry_info.bad_until - base::TimeTicks::Now()).InMilliseconds()); | |
| 319 | |
| 320 // Color expired entries blue. | |
| 321 if (ttl_ms > 0) | |
| 322 out->append("<tr>"); | |
| 323 else | |
| 324 out->append("<tr style='color:blue'>"); | |
| 325 | |
| 326 StringAppendF(out, "<td>%s</td><td>%d</td>", | |
| 327 EscapeForHTML(proxy_uri).c_str(), | |
| 328 ttl_ms); | |
| 329 | |
| 330 out->append("</tr>"); | |
| 331 } | |
| 332 out->append("</table>"); | |
| 333 } | |
| 334 }; | |
| 335 | |
| 336 class ProxyServiceSubSection : public SubSection { | |
| 337 public: | |
| 338 explicit ProxyServiceSubSection(SubSection* parent) | |
| 339 : SubSection(parent, "proxyservice", "ProxyService") { | |
| 340 AddSubSection(new ProxyServiceCurrentConfigSubSection(this)); | |
| 341 AddSubSection(new ProxyServiceLastInitLogSubSection(this)); | |
| 342 AddSubSection(new ProxyServiceBadProxiesSubSection(this)); | |
| 343 } | |
| 344 }; | |
| 345 | |
| 346 class HostResolverCacheSubSection : public SubSection { | |
| 347 public: | |
| 348 explicit HostResolverCacheSubSection(SubSection* parent) | |
| 349 : SubSection(parent, "hostcache", "HostCache") { | |
| 350 } | |
| 351 | |
| 352 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 353 const net::HostCache* host_cache = GetHostCache(context); | |
| 354 | |
| 355 if (!host_cache || host_cache->caching_is_disabled()) { | |
| 356 out->append("<i>Caching is disabled.</i>"); | |
| 357 return; | |
| 358 } | |
| 359 | |
| 360 DrawCommandButton("Clear", "clear-hostcache", out); | |
| 361 | |
| 362 StringAppendF( | |
| 363 out, | |
| 364 "<ul><li>Size: %" PRIuS "</li>" | |
| 365 "<li>Capacity: %" PRIuS "</li>" | |
| 366 "<li>Time to live (ms) for success entries: %" PRId64"</li>" | |
| 367 "<li>Time to live (ms) for failure entries: %" PRId64"</li></ul>", | |
| 368 host_cache->size(), | |
| 369 host_cache->max_entries(), | |
| 370 host_cache->success_entry_ttl().InMilliseconds(), | |
| 371 host_cache->failure_entry_ttl().InMilliseconds()); | |
| 372 | |
| 373 out->append("<table border=1>" | |
| 374 "<tr>" | |
| 375 "<th>Host</th>" | |
| 376 "<th>Address family</th>" | |
| 377 "<th>Address list</th>" | |
| 378 "<th>Canonical name</th>" | |
| 379 "<th>Time to live (ms)</th>" | |
| 380 "</tr>"); | |
| 381 | |
| 382 for (net::HostCache::EntryMap::const_iterator it = | |
| 383 host_cache->entries().begin(); | |
| 384 it != host_cache->entries().end(); | |
| 385 ++it) { | |
| 386 const net::HostCache::Key& key = it->first; | |
| 387 const net::HostCache::Entry* entry = it->second.get(); | |
| 388 | |
| 389 std::string address_family_str = | |
| 390 AddressFamilyToString(key.address_family); | |
| 391 | |
| 392 // Note that ttl_ms may be negative, for the cases where entries have | |
| 393 // expired but not been garbage collected yet. | |
| 394 int ttl_ms = static_cast<int>( | |
| 395 (entry->expiration - base::TimeTicks::Now()).InMilliseconds()); | |
| 396 | |
| 397 // Color expired entries blue. | |
| 398 if (ttl_ms > 0) { | |
| 399 out->append("<tr>"); | |
| 400 } else { | |
| 401 out->append("<tr style='color:blue'>"); | |
| 402 } | |
| 403 | |
| 404 // Stringify all of the addresses in the address list, separated | |
| 405 // by newlines (br). | |
| 406 std::string address_list_html; | |
| 407 std::string canonical_name_html; | |
| 408 | |
| 409 if (entry->error != net::OK) { | |
| 410 address_list_html = "<span style='font-weight: bold; color:red'>" + | |
| 411 EscapeForHTML(net::ErrorToString(entry->error)) + | |
| 412 "</span>"; | |
| 413 } else { | |
| 414 const struct addrinfo* current_address = entry->addrlist.head(); | |
| 415 while (current_address) { | |
| 416 if (!address_list_html.empty()) | |
| 417 address_list_html += "<br>"; | |
| 418 address_list_html += EscapeForHTML( | |
| 419 net::NetAddressToString(current_address)); | |
| 420 current_address = current_address->ai_next; | |
| 421 } | |
| 422 std::string canonical_name; | |
| 423 if (entry->addrlist.GetCanonicalName(&canonical_name)) | |
| 424 canonical_name_html = EscapeForHTML(canonical_name); | |
| 425 } | |
| 426 | |
| 427 StringAppendF(out, | |
| 428 "<td>%s</td><td>%s</td><td>%s</td>" | |
| 429 "<td>%s</td><td>%d</td></tr>", | |
| 430 EscapeForHTML(key.hostname).c_str(), | |
| 431 EscapeForHTML(address_family_str).c_str(), | |
| 432 address_list_html.c_str(), | |
| 433 canonical_name_html.c_str(), | |
| 434 ttl_ms); | |
| 435 } | |
| 436 | |
| 437 out->append("</table>"); | |
| 438 } | |
| 439 | |
| 440 static std::string AddressFamilyToString(net::AddressFamily address_family) { | |
| 441 switch (address_family) { | |
| 442 case net::ADDRESS_FAMILY_IPV4: | |
| 443 return "IPV4"; | |
| 444 case net::ADDRESS_FAMILY_IPV6: | |
| 445 return "IPV6"; | |
| 446 case net::ADDRESS_FAMILY_UNSPECIFIED: | |
| 447 return "UNSPECIFIED"; | |
| 448 default: | |
| 449 NOTREACHED(); | |
| 450 return "???"; | |
| 451 } | |
| 452 } | |
| 453 }; | |
| 454 | |
| 455 class HostResolverTraceSubSection : public SubSection { | |
| 456 public: | |
| 457 explicit HostResolverTraceSubSection(SubSection* parent) | |
| 458 : SubSection(parent, "trace", "Trace of requests") { | |
| 459 } | |
| 460 | |
| 461 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 462 net::HostResolverImpl* resolver = GetHostResolverImpl(context); | |
| 463 if (!resolver) { | |
| 464 out->append("<i>Tracing is not supported by this resolver.</i>"); | |
| 465 return; | |
| 466 } | |
| 467 | |
| 468 DrawCommandButton("Clear", "clear-hostresolver-trace", out); | |
| 469 | |
| 470 if (resolver->IsRequestsTracingEnabled()) { | |
| 471 DrawCommandButton("Disable tracing", "hostresolver-trace-disable", out); | |
| 472 } else { | |
| 473 DrawCommandButton("Enable tracing", "hostresolver-trace-enable", out); | |
| 474 } | |
| 475 | |
| 476 net::CapturingNetLog::EntryList entries; | |
| 477 if (resolver->GetRequestsTrace(&entries)) { | |
| 478 out->append( | |
| 479 "<p>To make sense of this trace, process it with the Python script " | |
| 480 "formatter.py at " | |
| 481 "<a href='http://src.chromium.org/viewvc/chrome/trunk/src/net/tools/" | |
| 482 "dns_trace_formatter/'>net/tools/dns_trace_formatter</a></p>"); | |
| 483 OutputTextInPre(net::NetLogUtil::PrettyPrintAsEventTree(entries, 0), | |
| 484 out); | |
| 485 } else { | |
| 486 out->append("<p><i>No trace information, must enable tracing.</i></p>"); | |
| 487 } | |
| 488 } | |
| 489 }; | |
| 490 | |
| 491 class HostResolverSubSection : public SubSection { | |
| 492 public: | |
| 493 explicit HostResolverSubSection(SubSection* parent) | |
| 494 : SubSection(parent, "hostresolver", "HostResolver") { | |
| 495 AddSubSection(new HostResolverCacheSubSection(this)); | |
| 496 AddSubSection(new HostResolverTraceSubSection(this)); | |
| 497 } | |
| 498 }; | |
| 499 | |
| 500 // Helper for the URLRequest "outstanding" and "live" sections. | |
| 501 void OutputURLAndLoadLog(const PassiveLogCollector::RequestInfo& request, | |
| 502 std::string* out) { | |
| 503 out->append("<li>"); | |
| 504 out->append("<nobr>"); | |
| 505 out->append(EscapeForHTML(request.url)); | |
| 506 out->append("</nobr>"); | |
| 507 OutputTextInPre( | |
| 508 net::NetLogUtil::PrettyPrintAsEventTree( | |
| 509 ConvertEntryList(request.entries), | |
| 510 request.num_entries_truncated), | |
| 511 out); | |
| 512 out->append("</li>"); | |
| 513 } | |
| 514 | |
| 515 class URLRequestLiveSubSection : public SubSection { | |
| 516 public: | |
| 517 explicit URLRequestLiveSubSection(SubSection* parent) | |
| 518 : SubSection(parent, "outstanding", "Outstanding requests") { | |
| 519 } | |
| 520 | |
| 521 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 522 PassiveLogCollector::RequestInfoList requests = | |
| 523 GetURLRequestTracker(context)->GetLiveRequests(); | |
| 524 | |
| 525 out->append("<ol>"); | |
| 526 for (size_t i = 0; i < requests.size(); ++i) { | |
| 527 // Reverse the list order, so we display from most recent to oldest. | |
| 528 size_t index = requests.size() - i - 1; | |
| 529 OutputURLAndLoadLog(requests[index], out); | |
| 530 } | |
| 531 out->append("</ol>"); | |
| 532 } | |
| 533 }; | |
| 534 | |
| 535 class URLRequestRecentSubSection : public SubSection { | |
| 536 public: | |
| 537 explicit URLRequestRecentSubSection(SubSection* parent) | |
| 538 : SubSection(parent, "recent", "Recently completed requests") { | |
| 539 } | |
| 540 | |
| 541 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 542 PassiveLogCollector::RequestInfoList recent = | |
| 543 GetURLRequestTracker(context)->GetRecentlyDeceased(); | |
| 544 | |
| 545 DrawCommandButton("Clear", "clear-urlrequest-graveyard", out); | |
| 546 | |
| 547 out->append("<ol>"); | |
| 548 for (size_t i = 0; i < recent.size(); ++i) { | |
| 549 // Reverse the list order, so we dispay from most recent to oldest. | |
| 550 size_t index = recent.size() - i - 1; | |
| 551 OutputURLAndLoadLog(recent[index], out); | |
| 552 } | |
| 553 out->append("</ol>"); | |
| 554 } | |
| 555 }; | |
| 556 | |
| 557 class URLRequestSubSection : public SubSection { | |
| 558 public: | |
| 559 explicit URLRequestSubSection(SubSection* parent) | |
| 560 : SubSection(parent, "urlrequest", "URLRequest") { | |
| 561 AddSubSection(new URLRequestLiveSubSection(this)); | |
| 562 AddSubSection(new URLRequestRecentSubSection(this)); | |
| 563 } | |
| 564 }; | |
| 565 | |
| 566 class HttpCacheStatsSubSection : public SubSection { | |
| 567 public: | |
| 568 explicit HttpCacheStatsSubSection(SubSection* parent) | |
| 569 : SubSection(parent, "stats", "Statistics") { | |
| 570 } | |
| 571 | |
| 572 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 573 ViewCacheHelper::GetStatisticsHTML(context, out); | |
| 574 } | |
| 575 }; | |
| 576 | |
| 577 class HttpCacheSection : public SubSection { | |
| 578 public: | |
| 579 explicit HttpCacheSection(SubSection* parent) | |
| 580 : SubSection(parent, "httpcache", "HttpCache") { | |
| 581 AddSubSection(new HttpCacheStatsSubSection(this)); | |
| 582 } | |
| 583 | |
| 584 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 585 // Advertise the view-cache URL (too much data to inline it). | |
| 586 out->append("<p><a href='/"); | |
| 587 out->append(kViewHttpCacheSubPath); | |
| 588 out->append("'>View all cache entries</a></p>"); | |
| 589 } | |
| 590 }; | |
| 591 | |
| 592 class SocketStreamLiveSubSection : public SubSection { | |
| 593 public: | |
| 594 explicit SocketStreamLiveSubSection(SubSection* parent) | |
| 595 : SubSection(parent, "live", "Live SocketStreams") { | |
| 596 } | |
| 597 | |
| 598 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 599 PassiveLogCollector::RequestInfoList sockets = | |
| 600 GetSocketStreamTracker(context)->GetLiveRequests(); | |
| 601 | |
| 602 out->append("<ol>"); | |
| 603 for (size_t i = 0; i < sockets.size(); ++i) { | |
| 604 // Reverse the list order, so we dispay from most recent to oldest. | |
| 605 size_t index = sockets.size() - i - 1; | |
| 606 OutputURLAndLoadLog(sockets[index], out); | |
| 607 } | |
| 608 out->append("</ol>"); | |
| 609 } | |
| 610 }; | |
| 611 | |
| 612 class SocketStreamRecentSubSection : public SubSection { | |
| 613 public: | |
| 614 explicit SocketStreamRecentSubSection(SubSection* parent) | |
| 615 : SubSection(parent, "recent", "Recently completed SocketStreams") { | |
| 616 } | |
| 617 | |
| 618 virtual void OutputBody(URLRequestContext* context, std::string* out) { | |
| 619 PassiveLogCollector::RequestInfoList recent = | |
| 620 GetSocketStreamTracker(context)->GetRecentlyDeceased(); | |
| 621 | |
| 622 DrawCommandButton("Clear", "clear-socketstream-graveyard", out); | |
| 623 | |
| 624 out->append("<ol>"); | |
| 625 for (size_t i = 0; i < recent.size(); ++i) { | |
| 626 // Reverse the list order, so we dispay from most recent to oldest. | |
| 627 size_t index = recent.size() - i - 1; | |
| 628 OutputURLAndLoadLog(recent[index], out); | |
| 629 } | |
| 630 out->append("</ol>"); | |
| 631 } | |
| 632 }; | |
| 633 | |
| 634 class SocketStreamSubSection : public SubSection { | |
| 635 public: | |
| 636 explicit SocketStreamSubSection(SubSection* parent) | |
| 637 : SubSection(parent, "socketstream", "SocketStream") { | |
| 638 AddSubSection(new SocketStreamLiveSubSection(this)); | |
| 639 AddSubSection(new SocketStreamRecentSubSection(this)); | |
| 640 } | |
| 641 }; | |
| 642 | |
| 643 class AllSubSections : public SubSection { | |
| 644 public: | |
| 645 AllSubSections() : SubSection(NULL, "", "") { | |
| 646 AddSubSection(new ProxyServiceSubSection(this)); | |
| 647 AddSubSection(new HostResolverSubSection(this)); | |
| 648 AddSubSection(new URLRequestSubSection(this)); | |
| 649 AddSubSection(new HttpCacheSection(this)); | |
| 650 AddSubSection(new SocketStreamSubSection(this)); | |
| 651 } | |
| 652 }; | |
| 653 | |
| 654 bool HandleCommand(const std::string& command, | |
| 655 URLRequestContext* context) { | |
| 656 if (StartsWithASCII(command, "full-logging-", true)) { | |
| 657 bool enable_full_logging = (command == "full-logging-enable"); | |
| 658 GetURLRequestTracker(context)->SetUnbounded(enable_full_logging); | |
| 659 GetSocketStreamTracker(context)->SetUnbounded(enable_full_logging); | |
| 660 return true; | |
| 661 } | |
| 662 | |
| 663 if (StartsWithASCII(command, "hostresolver-trace-", true)) { | |
| 664 bool enable_tracing = (command == "hostresolver-trace-enable"); | |
| 665 if (GetHostResolverImpl(context)) { | |
| 666 GetHostResolverImpl(context)->EnableRequestsTracing(enable_tracing); | |
| 667 } | |
| 668 } | |
| 669 | |
| 670 if (command == "clear-urlrequest-graveyard") { | |
| 671 GetURLRequestTracker(context)->ClearRecentlyDeceased(); | |
| 672 return true; | |
| 673 } | |
| 674 | |
| 675 if (command == "clear-socketstream-graveyard") { | |
| 676 GetSocketStreamTracker(context)->ClearRecentlyDeceased(); | |
| 677 return true; | |
| 678 } | |
| 679 | |
| 680 if (command == "clear-hostcache") { | |
| 681 net::HostCache* host_cache = GetHostCache(context); | |
| 682 if (host_cache) | |
| 683 host_cache->clear(); | |
| 684 return true; | |
| 685 } | |
| 686 | |
| 687 if (command == "clear-badproxies") { | |
| 688 context->proxy_service()->ClearBadProxiesCache(); | |
| 689 return true; | |
| 690 } | |
| 691 | |
| 692 if (command == "clear-hostresolver-trace") { | |
| 693 if (GetHostResolverImpl(context)) | |
| 694 GetHostResolverImpl(context)->ClearRequestsTrace(); | |
| 695 } | |
| 696 | |
| 697 if (command == "reload-proxy-config") { | |
| 698 context->proxy_service()->ForceReloadProxyConfig(); | |
| 699 return true; | |
| 700 } | |
| 701 | |
| 702 return false; | |
| 703 } | |
| 704 | |
| 705 // Process any query strings in the request (for actions like toggling | |
| 706 // full logging. | |
| 707 void ProcessQueryStringCommands(URLRequestContext* context, | |
| 708 const std::string& query) { | |
| 709 if (!StartsWithASCII(query, "commands=", true)) { | |
| 710 // Not a recognized format. | |
| 711 return; | |
| 712 } | |
| 713 | |
| 714 std::string commands_str = query.substr(strlen("commands=")); | |
| 715 commands_str = UnescapeURLComponent(commands_str, UnescapeRule::NORMAL); | |
| 716 | |
| 717 // The command list is comma-separated. | |
| 718 std::vector<std::string> commands; | |
| 719 SplitString(commands_str, ',', &commands); | |
| 720 | |
| 721 for (size_t i = 0; i < commands.size(); ++i) | |
| 722 HandleCommand(commands[i], context); | |
| 723 } | |
| 724 | |
| 725 // Appends some HTML controls to |data| that allow the user to enable full | |
| 726 // logging, and clear some of the already logged data. | |
| 727 void DrawControlsHeader(URLRequestContext* context, std::string* data) { | |
| 728 bool is_full_logging_enabled = | |
| 729 GetURLRequestTracker(context)->is_unbounded() && | |
| 730 GetSocketStreamTracker(context)->is_unbounded(); | |
| 731 | |
| 732 data->append("<div style='margin-bottom: 10px'>"); | |
| 733 | |
| 734 if (is_full_logging_enabled) { | |
| 735 DrawCommandButton("Disable full logging", "full-logging-disable", data); | |
| 736 } else { | |
| 737 DrawCommandButton("Enable full logging", "full-logging-enable", data); | |
| 738 } | |
| 739 | |
| 740 DrawCommandButton("Clear all data", | |
| 741 // Send a list of comma separated commands: | |
| 742 "clear-badproxies," | |
| 743 "clear-hostcache," | |
| 744 "clear-urlrequest-graveyard," | |
| 745 "clear-socketstream-graveyard," | |
| 746 "clear-hostresolver-trace", | |
| 747 data); | |
| 748 | |
| 749 data->append("</div>"); | |
| 750 } | |
| 751 | |
| 752 bool ViewNetInternalsJob::GetData(std::string* mime_type, | |
| 753 std::string* charset, | |
| 754 std::string* data) const { | |
| 755 mime_type->assign("text/html"); | |
| 756 charset->assign("UTF-8"); | |
| 757 | |
| 758 URLRequestContext* context = | |
| 759 static_cast<URLRequestContext*>(request_->context()); | |
| 760 | |
| 761 data->clear(); | |
| 762 | |
| 763 // Use a different handler for "view-cache/*" subpaths. | |
| 764 std::string cache_key; | |
| 765 if (GetViewCacheKeyForRequest(&cache_key)) { | |
| 766 GURL url = MakeURL(kViewHttpCacheSubPath + std::string("/")); | |
| 767 ViewCacheHelper::GetEntryInfoHTML(cache_key, context, url.spec(), data); | |
| 768 return true; | |
| 769 } | |
| 770 | |
| 771 // Handle any query arguments as a command request, then redirect back to | |
| 772 // the same URL stripped of query parameters. The redirect happens as part | |
| 773 // of IsRedirectResponse(). | |
| 774 if (request_->url().has_query()) { | |
| 775 ProcessQueryStringCommands(context, request_->url().query()); | |
| 776 return true; | |
| 777 } | |
| 778 | |
| 779 std::string details = GetDetails(request_->url()); | |
| 780 | |
| 781 data->append("<!DOCTYPE HTML>" | |
| 782 "<html><head><title>Network internals</title>" | |
| 783 "<style>" | |
| 784 "body { font-family: sans-serif; font-size: 0.8em; }\n" | |
| 785 "tt, code, pre { font-family: WebKitHack, monospace; }\n" | |
| 786 ".subsection_body { margin: 10px 0 10px 2em; }\n" | |
| 787 ".subsection_title { font-weight: bold; }\n" | |
| 788 "</style>" | |
| 789 "<script>\n" | |
| 790 | |
| 791 // Unfortunately we can't do XHR from chrome://net-internals | |
| 792 // because the chrome:// protocol restricts access. | |
| 793 // | |
| 794 // So instead, we will send commands by doing a form | |
| 795 // submission (which as a side effect will reload the page). | |
| 796 "function DoCommand(command) {\n" | |
| 797 " document.getElementById('cmd').value = command;\n" | |
| 798 " document.getElementById('cmdsender').submit();\n" | |
| 799 "}\n" | |
| 800 | |
| 801 "</script>\n" | |
| 802 "</head><body>" | |
| 803 "<form action='' method=GET id=cmdsender>" | |
| 804 "<input type='hidden' id=cmd name='commands'>" | |
| 805 "</form>" | |
| 806 "<p><a href='http://dev.chromium.org/" | |
| 807 "developers/design-documents/view-net-internals'>" | |
| 808 "Help: how do I use this?</a></p>"); | |
| 809 | |
| 810 DrawControlsHeader(context, data); | |
| 811 | |
| 812 SubSection* all = Singleton<AllSubSections>::get(); | |
| 813 SubSection* section = all; | |
| 814 | |
| 815 // Display only the subsection tree asked for. | |
| 816 if (!details.empty()) | |
| 817 section = all->FindSubSectionByName(details); | |
| 818 | |
| 819 if (section) { | |
| 820 section->OutputRecursive(context, data); | |
| 821 } else { | |
| 822 data->append("<i>Nothing found for \""); | |
| 823 data->append(EscapeForHTML(details)); | |
| 824 data->append("\"</i>"); | |
| 825 } | |
| 826 | |
| 827 data->append("</body></html>"); | |
| 828 | |
| 829 return true; | |
| 830 } | |
| 831 | |
| 832 bool ViewNetInternalsJob::IsRedirectResponse(GURL* location, | |
| 833 int* http_status_code) { | |
| 834 if (request_->url().has_query() && !GetViewCacheKeyForRequest(NULL)) { | |
| 835 // Strip the query parameters. | |
| 836 GURL::Replacements replacements; | |
| 837 replacements.ClearQuery(); | |
| 838 *location = request_->url().ReplaceComponents(replacements); | |
| 839 *http_status_code = 307; | |
| 840 return true; | |
| 841 } | |
| 842 return false; | |
| 843 } | |
| 844 | |
| 845 bool ViewNetInternalsJob::GetViewCacheKeyForRequest( | |
| 846 std::string* key) const { | |
| 847 std::string path = GetDetails(request_->url()); | |
| 848 if (!StartsWithASCII(path, kViewHttpCacheSubPath, true)) | |
| 849 return false; | |
| 850 | |
| 851 if (path.size() > strlen(kViewHttpCacheSubPath) && | |
| 852 path[strlen(kViewHttpCacheSubPath)] != '/') | |
| 853 return false; | |
| 854 | |
| 855 if (key && path.size() > strlen(kViewHttpCacheSubPath) + 1) | |
| 856 *key = path.substr(strlen(kViewHttpCacheSubPath) + 1); | |
| 857 | |
| 858 return true; | |
| 859 } | |
| 860 | |
| 861 } // namespace | |
| 862 | |
| 863 // static | |
| 864 bool ViewNetInternalsJobFactory::IsSupportedURL(const GURL& url) { | |
| 865 // Note that kNetworkViewInternalsURL is terminated by a '/'. | |
| 866 return StartsWithASCII(url.spec(), | |
| 867 chrome::kNetworkViewInternalsURL, | |
| 868 true /*case_sensitive*/); | |
| 869 } | |
| 870 | |
| 871 // static | |
| 872 URLRequestJob* ViewNetInternalsJobFactory::CreateJobForRequest( | |
| 873 URLRequest* request) { | |
| 874 return new ViewNetInternalsJob(request); | |
| 875 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2008007:
Replace about:net-internals with the javascript-based frontend.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/