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1 // Copyright 2013 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/spdyproxy/data_reduction_proxy_settings_android.h" | |
6 | |
7 #include "base/android/build_info.h" | |
8 #include "base/android/jni_android.h" | |
9 #include "base/android/jni_string.h" | |
10 #include "base/base64.h" | |
11 #include "base/bind.h" | |
12 #include "base/command_line.h" | |
13 #include "base/metrics/field_trial.h" | |
14 #include "base/metrics/histogram.h" | |
15 #include "base/prefs/pref_member.h" | |
16 #include "base/prefs/pref_service.h" | |
17 #include "base/strings/string_number_conversions.h" | |
18 #include "base/strings/string_util.h" | |
19 #include "base/strings/stringprintf.h" | |
20 #include "base/strings/utf_string_conversions.h" | |
21 #include "chrome/browser/browser_process.h" | |
22 #include "chrome/browser/prefs/proxy_prefs.h" | |
23 #include "chrome/browser/prefs/scoped_user_pref_update.h" | |
24 #include "chrome/browser/profiles/profile.h" | |
25 #include "chrome/browser/profiles/profile_manager.h" | |
26 #include "chrome/common/chrome_switches.h" | |
27 #include "chrome/common/pref_names.h" | |
28 #include "jni/DataReductionProxySettingsAndroid_jni.h" | |
29 #include "net/base/host_port_pair.h" | |
30 #include "net/base/load_flags.h" | |
31 #include "net/base/net_errors.h" | |
32 #include "net/url_request/url_fetcher.h" | |
33 #include "net/url_request/url_fetcher_delegate.h" | |
34 #include "net/url_request/url_request_status.h" | |
35 #include "url/gurl.h" | |
36 | |
37 using base::android::CheckException; | |
38 using base::android::ConvertJavaStringToUTF8; | |
39 using base::android::ConvertUTF8ToJavaString; | |
40 using base::android::ScopedJavaLocalRef; | |
41 using base::FieldTrialList; | |
42 using base::StringPrintf; | |
43 | |
44 | |
45 namespace { | |
46 | |
47 // The C++ definition of enum SpdyProxyAuthState defined in | |
48 // tools/histograms/histograms.xml. | |
49 // New values should be added at the end before |NUM_SPDY_PROXY_AUTH_STATE|. | |
50 enum { | |
51 CHROME_STARTUP, | |
52 SPDY_PROXY_AUTH_ON_AT_STARTUP, | |
53 SPDY_PROXY_AUTH_ON_BY_USER, | |
54 SPDY_PROXY_AUTH_OFF_BY_USER, | |
55 // Used by UMA histograms and should always be the last value. | |
56 NUM_SPDY_PROXY_AUTH_STATE | |
57 }; | |
58 | |
59 bool IsProxyOriginSetOnCommandLine() { | |
60 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | |
61 if (command_line.HasSwitch(switches::kSpdyProxyAuthOrigin)) { | |
62 return true; | |
63 } | |
64 return false; | |
65 } | |
66 | |
67 bool IsProxyAllowed() { | |
68 return IsProxyOriginSetOnCommandLine() || | |
69 (FieldTrialList::FindFullName("DataCompressionProxyRollout") == | |
mef
2013/09/19 20:21:44
nit: Probably should define those strings (especia
bengr
2013/09/19 20:31:25
Done for "Enabled". The others only appear once, s
| |
70 "Enabled"); | |
71 } | |
72 | |
73 bool IsProxyPromoAllowed() { | |
74 return IsProxyOriginSetOnCommandLine() || | |
75 (IsProxyAllowed() && | |
76 FieldTrialList::FindFullName("DataCompressionProxyPromoVisibility") == | |
77 "Enabled"); | |
78 } | |
79 | |
80 int64 GetInt64PrefValue(const ListValue& list_value, size_t index) { | |
81 int64 val = 0; | |
82 std::string pref_value; | |
83 bool rv = list_value.GetString(index, &pref_value); | |
84 DCHECK(rv); | |
85 if (rv) { | |
86 rv = base::StringToInt64(pref_value, &val); | |
87 DCHECK(rv); | |
88 } | |
89 return val; | |
90 } | |
91 | |
92 std::string GetProxyCheckURL(){ | |
93 if (!IsProxyAllowed()) | |
94 return std::string(); | |
95 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | |
96 if (command_line.HasSwitch(switches::kDataReductionProxyProbeURL)) { | |
97 return command_line.GetSwitchValueASCII(switches::kSpdyProxyAuthOrigin); | |
98 } | |
99 #if defined(DATA_REDUCTION_PROXY_PROBE_URL) | |
100 return DATA_REDUCTION_PROXY_PROBE_URL; | |
101 #else | |
102 return std::string(); | |
103 #endif | |
104 } | |
105 | |
106 std::string GetDataReductionProxyOriginInternal() { | |
107 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | |
108 if (command_line.HasSwitch(switches::kSpdyProxyAuthOrigin)) { | |
109 return command_line.GetSwitchValueASCII(switches::kSpdyProxyAuthOrigin); | |
110 } | |
111 #if defined(SPDY_PROXY_AUTH_ORIGIN) | |
112 return SPDY_PROXY_AUTH_ORIGIN; | |
113 #else | |
114 return std::string(); | |
115 #endif | |
116 } | |
117 | |
118 std::string GetDataReductionProxyOriginHostPort() { | |
119 std::string spdy_proxy = GetDataReductionProxyOriginInternal(); | |
120 if (spdy_proxy.empty()) { | |
121 DLOG(ERROR) << "A SPDY proxy has not been set."; | |
122 return spdy_proxy; | |
123 } | |
124 // Remove a trailing slash from the proxy string if one exists as well as | |
125 // leading HTTPS scheme. | |
126 return net::HostPortPair::FromURL(GURL(spdy_proxy)).ToString(); | |
127 } | |
128 | |
129 } // namespace | |
130 | |
131 | |
132 DataReductionProxySettingsAndroid::DataReductionProxySettingsAndroid( | |
133 JNIEnv* env, jobject obj) | |
134 : has_turned_on_(false), | |
135 has_turned_off_(false), | |
136 disabled_by_carrier_(false), | |
137 enabled_by_user_(false) { | |
138 } | |
139 | |
140 DataReductionProxySettingsAndroid::~DataReductionProxySettingsAndroid() { | |
141 if (IsProxyAllowed()) | |
142 spdy_proxy_auth_enabled_.Destroy(); | |
143 } | |
144 | |
145 void DataReductionProxySettingsAndroid::InitPrefMembers() { | |
146 spdy_proxy_auth_enabled_.Init( | |
147 prefs::kSpdyProxyAuthEnabled, | |
148 GetOriginalProfilePrefs(), | |
149 base::Bind(&DataReductionProxySettingsAndroid::OnProxyEnabledPrefChange, | |
150 base::Unretained(this))); | |
151 } | |
152 | |
153 void DataReductionProxySettingsAndroid::InitDataReductionProxySettings( | |
154 JNIEnv* env, | |
155 jobject obj) { | |
156 // Disable the proxy if it is not allowed to be used. | |
157 if (!IsProxyAllowed()) | |
158 return; | |
159 | |
160 InitPrefMembers(); | |
161 | |
162 AddDefaultProxyBypassRules(); | |
163 net::NetworkChangeNotifier::AddIPAddressObserver(this); | |
164 | |
165 CommandLine* command_line = CommandLine::ForCurrentProcess(); | |
166 | |
167 // Setting the kEnableSpdyProxyAuth switch has the same effect as enabling | |
168 // the feature via settings, in that once set, the preference will be sticky | |
169 // across instances of Chrome. Disabling the feature can only be done through | |
170 // the settings menu. | |
171 UMA_HISTOGRAM_ENUMERATION("SpdyProxyAuth.State", CHROME_STARTUP, | |
172 NUM_SPDY_PROXY_AUTH_STATE); | |
173 if (spdy_proxy_auth_enabled_.GetValue() || | |
174 command_line->HasSwitch(switches::kEnableSpdyProxyAuth)) { | |
175 MaybeActivateDataReductionProxy(true); | |
176 } else { | |
177 LOG(WARNING) << "SPDY proxy OFF at startup."; | |
178 } | |
179 } | |
180 | |
181 void DataReductionProxySettingsAndroid::BypassHostPattern( | |
182 JNIEnv* env, jobject obj, jstring pattern) { | |
183 AddHostPatternToBypass(ConvertJavaStringToUTF8(env, pattern)); | |
184 } | |
185 void DataReductionProxySettingsAndroid::BypassURLPattern( | |
186 JNIEnv* env, jobject obj, jstring pattern) { | |
187 AddURLPatternToBypass(ConvertJavaStringToUTF8(env, pattern)); | |
188 } | |
189 | |
190 jboolean DataReductionProxySettingsAndroid::IsDataReductionProxyAllowed( | |
191 JNIEnv* env, jobject obj) { | |
192 return IsProxyAllowed(); | |
193 } | |
194 | |
195 jboolean DataReductionProxySettingsAndroid::IsDataReductionProxyPromoAllowed( | |
196 JNIEnv* env, jobject obj) { | |
197 return IsProxyPromoAllowed(); | |
198 } | |
199 | |
200 ScopedJavaLocalRef<jstring> | |
201 DataReductionProxySettingsAndroid::GetDataReductionProxyOrigin( | |
202 JNIEnv* env, jobject obj) { | |
203 return ConvertUTF8ToJavaString(env, GetDataReductionProxyOriginInternal()); | |
204 } | |
205 | |
206 ScopedJavaLocalRef<jstring> | |
207 DataReductionProxySettingsAndroid::GetDataReductionProxyAuth( | |
208 JNIEnv* env, jobject obj) { | |
209 if (!IsProxyAllowed()) | |
210 return ConvertUTF8ToJavaString(env, std::string()); | |
211 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | |
212 if (command_line.HasSwitch(switches::kSpdyProxyAuthOrigin)) { | |
213 // If an origin is provided via a switch, then only consider the value | |
214 // that is provided by a switch. Do not use the preprocessor constant. | |
215 // Don't expose SPDY_PROXY_AUTH_VALUE to a proxy passed in via the command | |
216 // line. | |
217 if (command_line.HasSwitch(switches::kSpdyProxyAuthValue)) { | |
218 return ConvertUTF8ToJavaString( | |
219 env, | |
220 command_line.GetSwitchValueASCII(switches::kSpdyProxyAuthValue)); | |
221 } | |
222 return ConvertUTF8ToJavaString(env, std::string()); | |
223 } | |
224 #if defined(SPDY_PROXY_AUTH_VALUE) | |
225 return ConvertUTF8ToJavaString(env, SPDY_PROXY_AUTH_VALUE); | |
226 #else | |
227 return ConvertUTF8ToJavaString(env, std::string()); | |
228 #endif | |
229 } | |
230 | |
231 jboolean DataReductionProxySettingsAndroid::IsDataReductionProxyEnabled( | |
232 JNIEnv* env, jobject obj) { | |
233 return spdy_proxy_auth_enabled_.GetValue(); | |
234 } | |
235 | |
236 jboolean DataReductionProxySettingsAndroid::IsDataReductionProxyManaged( | |
237 JNIEnv* env, jobject obj) { | |
238 return spdy_proxy_auth_enabled_.IsManaged(); | |
239 } | |
240 | |
241 void DataReductionProxySettingsAndroid::SetDataReductionProxyEnabled( | |
242 JNIEnv* env, | |
243 jobject obj, | |
244 jboolean enabled) { | |
245 // Prevent configuring the proxy when it is not allowed to be used. | |
246 if (!IsProxyAllowed()) | |
247 return; | |
248 | |
249 spdy_proxy_auth_enabled_.SetValue(enabled); | |
250 OnProxyEnabledPrefChange(); | |
251 } | |
252 | |
253 jlong DataReductionProxySettingsAndroid::GetDataReductionLastUpdateTime( | |
254 JNIEnv* env, jobject obj) { | |
255 PrefService* local_state = GetLocalStatePrefs(); | |
256 int64 last_update_internal = | |
257 local_state->GetInt64(prefs::kDailyHttpContentLengthLastUpdateDate); | |
258 base::Time last_update = base::Time::FromInternalValue(last_update_internal); | |
259 return static_cast<int64>(last_update.ToJsTime()); | |
260 } | |
261 | |
262 base::android::ScopedJavaLocalRef<jobject> | |
263 DataReductionProxySettingsAndroid::GetContentLengths(JNIEnv* env, | |
264 jobject obj) { | |
265 int64 original_content_length; | |
266 int64 received_content_length; | |
267 int64 last_update_internal; | |
268 GetContentLengthsInternal(spdyproxy::kNumDaysInHistorySummary, | |
269 &original_content_length, | |
270 &received_content_length, &last_update_internal); | |
271 | |
272 return Java_ContentLengths_create(env, | |
273 original_content_length, | |
274 received_content_length); | |
275 } | |
276 | |
277 ScopedJavaLocalRef<jlongArray> | |
278 DataReductionProxySettingsAndroid::GetDailyOriginalContentLengths( | |
279 JNIEnv* env, jobject obj) { | |
280 return GetDailyContentLengths(env, prefs::kDailyHttpOriginalContentLength); | |
281 } | |
282 | |
283 ScopedJavaLocalRef<jlongArray> | |
284 DataReductionProxySettingsAndroid::GetDailyReceivedContentLengths( | |
285 JNIEnv* env, jobject obj) { | |
286 return GetDailyContentLengths(env, prefs::kDailyHttpReceivedContentLength); | |
287 } | |
288 | |
289 // static | |
290 bool DataReductionProxySettingsAndroid::Register(JNIEnv* env) { | |
291 bool register_natives_impl_result = RegisterNativesImpl(env); | |
292 return register_natives_impl_result; | |
293 } | |
294 | |
295 void DataReductionProxySettingsAndroid::OnURLFetchComplete( | |
296 const net::URLFetcher* source) { | |
297 net::URLRequestStatus status = source->GetStatus(); | |
298 if (status.status() == net::URLRequestStatus::FAILED && | |
299 status.error() == net::ERR_INTERNET_DISCONNECTED) { | |
300 return; | |
301 } | |
302 | |
303 std::string response; | |
304 source->GetResponseAsString(&response); | |
305 | |
306 if ("OK" == response.substr(0, 2)) { | |
307 DVLOG(1) << "The data reduction proxy is not blocked."; | |
308 | |
309 if (enabled_by_user_ && disabled_by_carrier_) { | |
310 // The user enabled the proxy, but sometime previously in the session, | |
311 // the network operator had blocked the proxy. Now that the network | |
312 // operator is unblocking it, configure it to the user's desires. | |
313 SetProxyPac(true, false); | |
314 } | |
315 disabled_by_carrier_ = false; | |
316 return; | |
317 } | |
318 DVLOG(1) << "The data reduction proxy is blocked."; | |
319 | |
320 if (enabled_by_user_ && !disabled_by_carrier_) { | |
321 // Disable the proxy. | |
322 SetProxyPac(false, false); | |
323 } | |
324 disabled_by_carrier_ = true; | |
325 } | |
326 | |
327 void DataReductionProxySettingsAndroid::OnIPAddressChanged() { | |
328 if (enabled_by_user_) { | |
329 DCHECK(IsProxyAllowed()); | |
330 ProbeWhetherDataReductionProxyIsAvailable(); | |
331 } | |
332 } | |
333 | |
334 void DataReductionProxySettingsAndroid::OnProxyEnabledPrefChange() { | |
335 if (!IsProxyAllowed()) | |
336 return; | |
337 MaybeActivateDataReductionProxy(false); | |
338 } | |
339 | |
340 void DataReductionProxySettingsAndroid::AddDefaultProxyBypassRules() { | |
341 // localhost | |
342 AddHostToBypass("localhost"); | |
343 AddHostPatternToBypass("localhost.*"); | |
344 AddHostToBypass("127.0.0.1"); | |
345 AddHostToBypass("::1"); | |
346 // TODO(bengr): revisit 192.168.*, 10.*, 172.16.0.0 - 172.31.255.255. The | |
347 // concern was that adding these and other rules would add to the processing | |
mef
2013/09/19 20:21:44
I think those must be added, otherwise how would i
bengr
2013/09/19 20:31:25
The data reduction proxy will issue a proxy-bypass
| |
348 // time. | |
349 | |
350 // TODO(bengr): See http://crbug.com/169959. For some reason the data | |
351 // reduction proxy is breaking the omnibox SearchProvider. Remove this rule | |
352 // when this is fixed. | |
353 AddURLPatternToBypass("http://www.google.com/complete/search*"); | |
354 | |
355 // Check for proxy availability | |
356 std::string proxy_check_url = GetProxyCheckURL(); | |
357 if (!proxy_check_url.empty()) { | |
358 AddURLPatternToBypass(GetProxyCheckURL()); | |
359 } | |
360 } | |
361 | |
362 void DataReductionProxySettingsAndroid::AddURLPatternToBypass( | |
363 const std::string& pattern) { | |
364 AddPatternToBypass("url", pattern); | |
365 } | |
366 | |
367 void DataReductionProxySettingsAndroid::AddHostPatternToBypass( | |
368 const std::string& pattern) { | |
369 AddPatternToBypass("host", pattern); | |
370 } | |
371 | |
372 void DataReductionProxySettingsAndroid::AddPatternToBypass( | |
373 const std::string& url_or_host, | |
374 const std::string& pattern) { | |
375 bypass_rules_.push_back( | |
376 StringPrintf("shExpMatch(%s, \"%s\")", | |
377 url_or_host.c_str(), pattern.c_str())); | |
378 } | |
379 | |
380 void DataReductionProxySettingsAndroid::AddHostToBypass( | |
381 const std::string& host) { | |
382 bypass_rules_.push_back( | |
383 StringPrintf("host == \"%s\"", host.c_str())); | |
384 } | |
385 | |
386 PrefService* DataReductionProxySettingsAndroid::GetOriginalProfilePrefs() { | |
387 return g_browser_process->profile_manager()->GetDefaultProfile()-> | |
388 GetOriginalProfile()->GetPrefs(); | |
389 } | |
390 | |
391 PrefService* DataReductionProxySettingsAndroid::GetLocalStatePrefs() { | |
392 return g_browser_process->local_state(); | |
393 } | |
394 | |
395 void DataReductionProxySettingsAndroid::ResetDataReductionStatistics() { | |
396 PrefService* prefs = GetLocalStatePrefs(); | |
397 if (!prefs) | |
398 return; | |
399 ListPrefUpdate original_update(prefs, prefs::kDailyHttpOriginalContentLength); | |
400 ListPrefUpdate received_update(prefs, prefs::kDailyHttpReceivedContentLength); | |
401 original_update->Clear(); | |
402 received_update->Clear(); | |
403 for (size_t i = 0; i < spdyproxy::kNumDaysInHistory; ++i) { | |
404 original_update->AppendString(base::Int64ToString(0)); | |
405 received_update->AppendString(base::Int64ToString(0)); | |
406 } | |
407 } | |
408 | |
409 void DataReductionProxySettingsAndroid::MaybeActivateDataReductionProxy( | |
410 bool at_startup) { | |
411 PrefService* prefs = GetOriginalProfilePrefs(); | |
412 | |
413 if (spdy_proxy_auth_enabled_.GetValue() && | |
414 !prefs->GetBoolean(prefs::kSpdyProxyAuthWasEnabledBefore)) { | |
415 prefs->SetBoolean(prefs::kSpdyProxyAuthWasEnabledBefore, true); | |
416 ResetDataReductionStatistics(); | |
417 } | |
418 | |
419 std::string spdy_proxy_origin = GetDataReductionProxyOriginHostPort(); | |
420 | |
421 // Configure use of the data reduction proxy if it is enabled and the proxy | |
422 // origin is non-empty. | |
423 enabled_by_user_= | |
424 spdy_proxy_auth_enabled_.GetValue() && spdy_proxy_origin != ""; | |
mef
2013/09/19 20:21:44
!spdy_proxy_origin.empty()
bengr
2013/09/19 20:31:25
Done.
| |
425 SetProxyPac(enabled_by_user_ && !disabled_by_carrier_, at_startup); | |
426 | |
427 // Check if the proxy has been disabled explicitly by the carrier. | |
428 if (enabled_by_user_) | |
429 ProbeWhetherDataReductionProxyIsAvailable(); | |
430 } | |
431 | |
432 void DataReductionProxySettingsAndroid::SetProxyPac(bool enable_spdy_proxy, | |
433 bool at_startup) { | |
434 PrefService* prefs = GetOriginalProfilePrefs(); | |
435 DCHECK(prefs); | |
436 // Keys duplicated from proxy_config_dictionary.cc | |
437 // TODO(bengr): Move these to proxy_config_dictionary.h and reuse them here. | |
438 const char kProxyMode[] = "mode"; | |
439 const char kProxyPacURL[] = "pac_url"; | |
440 const char kAtStartup[] = "at startup"; | |
441 const char kByUser[] = "by user action"; | |
442 | |
443 DictionaryPrefUpdate update(prefs, prefs::kProxy); | |
444 DictionaryValue* dict = update.Get(); | |
445 if (enable_spdy_proxy) { | |
446 LOG(WARNING) << "SPDY proxy ON " << (at_startup ? kAtStartup : kByUser); | |
447 // Convert to a data URI and update the PAC settings. | |
448 std::string base64_pac; | |
449 base::Base64Encode(GetProxyPacScript(), &base64_pac); | |
450 | |
451 dict->SetString(kProxyPacURL, | |
452 "data:application/x-ns-proxy-autoconfig;base64," + | |
453 base64_pac); | |
454 dict->SetString(kProxyMode, | |
455 ProxyModeToString(ProxyPrefs::MODE_PAC_SCRIPT)); | |
456 | |
457 if (at_startup) { | |
458 UMA_HISTOGRAM_ENUMERATION("SpdyProxyAuth.State", | |
459 SPDY_PROXY_AUTH_ON_AT_STARTUP, | |
460 NUM_SPDY_PROXY_AUTH_STATE); | |
461 } else if (!has_turned_on_) { | |
462 // SPDY proxy auth is turned on by user action for the first time in | |
463 // this session. | |
464 UMA_HISTOGRAM_ENUMERATION("SpdyProxyAuth.State", | |
465 SPDY_PROXY_AUTH_ON_BY_USER, | |
466 NUM_SPDY_PROXY_AUTH_STATE); | |
467 has_turned_on_ = true; | |
468 } | |
469 } else { | |
470 LOG(WARNING) << "SPDY proxy OFF " << (at_startup ? kAtStartup : kByUser); | |
471 dict->SetString(kProxyMode, ProxyModeToString(ProxyPrefs::MODE_SYSTEM)); | |
472 dict->SetString(kProxyPacURL, ""); | |
473 | |
474 if (!at_startup && !has_turned_off_) { | |
475 UMA_HISTOGRAM_ENUMERATION("SpdyProxyAuth.State", | |
476 SPDY_PROXY_AUTH_OFF_BY_USER, | |
477 NUM_SPDY_PROXY_AUTH_STATE); | |
478 has_turned_off_ = true; | |
479 } | |
480 } | |
481 } | |
482 | |
483 ScopedJavaLocalRef<jlongArray> | |
484 DataReductionProxySettingsAndroid::GetDailyContentLengths( | |
485 JNIEnv* env, const char* pref_name) { | |
486 jlongArray result = env->NewLongArray(spdyproxy::kNumDaysInHistory); | |
487 PrefService* local_state = GetLocalStatePrefs(); | |
488 if (!local_state) | |
489 return ScopedJavaLocalRef<jlongArray>(env, result); | |
490 | |
491 const ListValue* list_value = local_state->GetList(pref_name); | |
492 if (list_value->GetSize() != spdyproxy::kNumDaysInHistory) | |
493 return ScopedJavaLocalRef<jlongArray>(env, result); | |
494 | |
495 jlong jval[spdyproxy::kNumDaysInHistory]; | |
496 for (size_t i = 0; i < spdyproxy::kNumDaysInHistory; ++i) { | |
497 jval[i] = GetInt64PrefValue(*list_value, i); | |
498 } | |
499 env->SetLongArrayRegion(result, 0, spdyproxy::kNumDaysInHistory, jval); | |
500 return ScopedJavaLocalRef<jlongArray>(env, result); | |
501 } | |
502 | |
503 void DataReductionProxySettingsAndroid::GetContentLengthsInternal( | |
504 unsigned int days, | |
505 int64* original_content_length, | |
506 int64* received_content_length, | |
507 int64* last_update_time) { | |
508 DCHECK_LE(days, spdyproxy::kNumDaysInHistory); | |
509 PrefService* local_state = GetLocalStatePrefs(); | |
510 if (!local_state) { | |
511 *original_content_length = 0L; | |
512 *received_content_length = 0L; | |
513 *last_update_time = 0L; | |
514 return; | |
515 } | |
516 | |
517 const ListValue* original_list = | |
518 local_state->GetList(prefs::kDailyHttpOriginalContentLength); | |
519 const ListValue* received_list = | |
520 local_state->GetList(prefs::kDailyHttpReceivedContentLength); | |
521 | |
522 if (original_list->GetSize() != spdyproxy::kNumDaysInHistory || | |
523 received_list->GetSize() != spdyproxy::kNumDaysInHistory) { | |
524 *original_content_length = 0L; | |
525 *received_content_length = 0L; | |
526 *last_update_time = 0L; | |
527 return; | |
528 } | |
529 | |
530 int64 orig = 0L; | |
531 int64 recv = 0L; | |
532 // We include days from the end of the list going backwards. | |
533 for (unsigned int i = 0; i < days; ++i) { | |
534 int read_index = spdyproxy::kNumDaysInHistory - 1 - i; | |
535 std::string result; | |
536 orig += GetInt64PrefValue(*original_list, read_index); | |
537 recv += GetInt64PrefValue(*received_list, read_index); | |
538 } | |
539 *original_content_length = orig; | |
540 *received_content_length = recv; | |
541 *last_update_time = | |
542 local_state->GetInt64(prefs::kDailyHttpContentLengthLastUpdateDate); | |
543 } | |
544 | |
545 net::URLFetcher* DataReductionProxySettingsAndroid::GetURLFetcher() { | |
546 std::string url = GetProxyCheckURL(); | |
547 if (url.empty()) | |
548 return NULL; | |
549 net::URLFetcher* fetcher = net::URLFetcher::Create(GURL(url), | |
550 net::URLFetcher::GET, | |
551 this); | |
552 fetcher->SetLoadFlags(net::LOAD_DISABLE_CACHE); | |
553 Profile* profile = g_browser_process->profile_manager()-> | |
554 GetDefaultProfile(); | |
555 fetcher->SetRequestContext(profile->GetRequestContext()); | |
556 // Configure to max_retries at most kMaxRetries times for 5xx errors. | |
557 static const int kMaxRetries = 5; | |
558 fetcher->SetMaxRetriesOn5xx(kMaxRetries); | |
559 return fetcher; | |
560 } | |
561 | |
562 void | |
563 DataReductionProxySettingsAndroid::ProbeWhetherDataReductionProxyIsAvailable() { | |
564 net::URLFetcher* fetcher = GetURLFetcher(); | |
565 if (!fetcher) | |
566 return; | |
567 fetcher_.reset(fetcher); | |
568 fetcher_->Start(); | |
569 } | |
570 | |
571 // TODO(bengr): Replace with our own ProxyResolver. | |
572 std::string DataReductionProxySettingsAndroid::GetProxyPacScript() { | |
573 std::string bypass_clause = "(" + JoinString(bypass_rules_, ") || (") + ")"; | |
574 | |
575 // We want to fall back to direct loading when the proxy is unavailable and | |
576 // only process HTTP traffic, so we concoct a PAC configuration | |
577 // accordingly. (With a statically configured proxy, proxy failures will | |
578 // simply result in a connection error presented to users.) | |
579 | |
580 std::string pac = "function FindProxyForURL(url, host) {" | |
581 " if (" + bypass_clause + ") {" | |
582 " return \"DIRECT\";" | |
583 " } " | |
584 " if (url.substring(0, 5) == \"http:\") {" | |
585 " return \"HTTPS " + GetDataReductionProxyOriginHostPort() + | |
586 "; DIRECT\";" | |
587 " }" | |
588 " return \"DIRECT\";" | |
589 "}"; | |
590 return pac; | |
591 } | |
592 | |
593 // Used by generated jni code. | |
594 static jint Init(JNIEnv* env, jobject obj) { | |
595 DataReductionProxySettingsAndroid* settings = | |
596 new DataReductionProxySettingsAndroid(env, obj); | |
597 return reinterpret_cast<jint>(settings); | |
598 } | |
599 | |
600 | |
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