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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/browser/net/view_net_internals_job_factory.h" | 5 #include "chrome/browser/net/view_http_cache_job_factory.h" |
6 | 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" | 7 #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" | 8 #include "net/url_request/url_request.h" |
25 #include "net/url_request/url_request_context.h" | 9 #include "net/url_request/url_request_context.h" |
26 #include "net/url_request/url_request_simple_job.h" | 10 #include "net/url_request/url_request_simple_job.h" |
27 #include "net/url_request/view_cache_helper.h" | 11 #include "net/url_request/view_cache_helper.h" |
28 | 12 |
29 namespace { | 13 namespace { |
30 | 14 |
31 const char kViewHttpCacheSubPath[] = "view-cache"; | 15 // A job subclass that dumps an HTTP cache entry. |
32 | 16 class ViewHttpCacheJob : public URLRequestSimpleJob { |
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: | 17 public: |
97 | 18 explicit ViewHttpCacheJob(URLRequest* request) |
98 explicit ViewNetInternalsJob(URLRequest* request) | |
99 : URLRequestSimpleJob(request) {} | 19 : URLRequestSimpleJob(request) {} |
100 | 20 |
101 // URLRequestSimpleJob methods: | 21 // URLRequestSimpleJob methods: |
102 virtual bool GetData(std::string* mime_type, | 22 virtual bool GetData(std::string* mime_type, |
103 std::string* charset, | 23 std::string* charset, |
104 std::string* data) const; | 24 std::string* data) const; |
105 | 25 |
106 // Overridden methods from URLRequestJob: | |
107 virtual bool IsRedirectResponse(GURL* location, int* http_status_code); | |
108 | |
109 private: | 26 private: |
110 ~ViewNetInternalsJob() {} | 27 ~ViewHttpCacheJob() {} |
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 }; | 28 }; |
116 | 29 |
117 //------------------------------------------------------------------------------ | 30 bool ViewHttpCacheJob::GetData(std::string* mime_type, |
118 // Format helpers. | 31 std::string* charset, |
119 //------------------------------------------------------------------------------ | 32 std::string* data) const { |
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"); | 33 mime_type->assign("text/html"); |
756 charset->assign("UTF-8"); | 34 charset->assign("UTF-8"); |
757 | 35 |
758 URLRequestContext* context = | |
759 static_cast<URLRequestContext*>(request_->context()); | |
760 | |
761 data->clear(); | 36 data->clear(); |
762 | 37 |
763 // Use a different handler for "view-cache/*" subpaths. | |
764 std::string cache_key; | 38 std::string cache_key; |
765 if (GetViewCacheKeyForRequest(&cache_key)) { | 39 cache_key = |
766 GURL url = MakeURL(kViewHttpCacheSubPath + std::string("/")); | 40 request_->url().spec().substr(strlen(chrome::kNetworkViewCacheURL)); |
767 ViewCacheHelper::GetEntryInfoHTML(cache_key, context, url.spec(), data); | 41 ViewCacheHelper::GetEntryInfoHTML(cache_key, |
768 return true; | 42 request_->context(), |
769 } | 43 chrome::kNetworkViewCacheURL, |
770 | 44 data); |
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 | 45 |
858 return true; | 46 return true; |
859 } | 47 } |
860 | 48 |
861 } // namespace | 49 } // namespace |
862 | 50 |
863 // static | 51 // static |
864 bool ViewNetInternalsJobFactory::IsSupportedURL(const GURL& url) { | 52 bool ViewHttpCacheJobFactory::IsSupportedURL(const GURL& url) { |
865 // Note that kNetworkViewInternalsURL is terminated by a '/'. | |
866 return StartsWithASCII(url.spec(), | 53 return StartsWithASCII(url.spec(), |
867 chrome::kNetworkViewInternalsURL, | 54 chrome::kNetworkViewCacheURL, |
868 true /*case_sensitive*/); | 55 true /*case_sensitive*/); |
869 } | 56 } |
870 | 57 |
871 // static | 58 // static |
872 URLRequestJob* ViewNetInternalsJobFactory::CreateJobForRequest( | 59 URLRequestJob* ViewHttpCacheJobFactory::CreateJobForRequest( |
873 URLRequest* request) { | 60 URLRequest* request) { |
874 return new ViewNetInternalsJob(request); | 61 return new ViewHttpCacheJob(request); |
875 } | 62 } |
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