content/browser/frame_host/navigation_entry_impl.cc

   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 "content/browser/frame_host/navigation_entry_impl.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "base/strings/string_util.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "content/common/navigation_params.h"
  11 #include "content/public/common/content_constants.h"
  12 #include "content/public/common/url_constants.h"
  13 #include "net/base/net_util.h"
  14 #include "ui/gfx/text_elider.h"
  15
  16 // Use this to get a new unique ID for a NavigationEntry during construction.
  17 // The returned ID is guaranteed to be nonzero (which is the "no ID" indicator).
  18 static int GetUniqueIDInConstructor() {
  19   static int unique_id_counter = 0;
  20   return ++unique_id_counter;
  21 }
  22
  23 namespace content {
  24
  25 int NavigationEntryImpl::kInvalidBindings = -1;
  26
  27 NavigationEntryImpl::TreeNode::TreeNode(FrameNavigationEntry* frame_entry)
  28     : frame_entry(frame_entry) {
  29 }
  30
  31 NavigationEntryImpl::TreeNode::~TreeNode() {
  32 }
  33
  34 NavigationEntryImpl::TreeNode* NavigationEntryImpl::TreeNode::Clone() const {
  35   // Clone the tree using a copy of the FrameNavigationEntry, without sharing.
  36   NavigationEntryImpl::TreeNode* copy =
  37       new NavigationEntryImpl::TreeNode(frame_entry->Clone());
  38
  39   // TODO(creis): Clone children once we add them.
  40   return copy;
  41 }
  42
  43 NavigationEntry* NavigationEntry::Create() {
  44   return new NavigationEntryImpl();
  45 }
  46
  47 NavigationEntryImpl* NavigationEntryImpl::FromNavigationEntry(
  48     NavigationEntry* entry) {
  49   return static_cast<NavigationEntryImpl*>(entry);
  50 }
  51
  52 NavigationEntryImpl::NavigationEntryImpl()
  53     : NavigationEntryImpl(nullptr, -1, GURL(), Referrer(), base::string16(),
  54                           ui::PAGE_TRANSITION_LINK, false) {
  55 }
  56
  57 NavigationEntryImpl::NavigationEntryImpl(SiteInstanceImpl* instance,
  58                                          int page_id,
  59                                          const GURL& url,
  60                                          const Referrer& referrer,
  61                                          const base::string16& title,
  62                                          ui::PageTransition transition_type,
  63                                          bool is_renderer_initiated)
  64     : frame_tree_(
  65           new TreeNode(new FrameNavigationEntry(instance, url, referrer))),
  66       unique_id_(GetUniqueIDInConstructor()),
  67       bindings_(kInvalidBindings),
  68       page_type_(PAGE_TYPE_NORMAL),
  69       update_virtual_url_with_url_(false),
  70       title_(title),
  71       page_id_(page_id),
  72       transition_type_(transition_type),
  73       has_post_data_(false),
  74       post_id_(-1),
  75       restore_type_(RESTORE_NONE),
  76       is_overriding_user_agent_(false),
  77       http_status_code_(0),
  78       is_renderer_initiated_(is_renderer_initiated),
  79       should_replace_entry_(false),
  80       should_clear_history_list_(false),
  81       can_load_local_resources_(false),
  82       frame_tree_node_id_(-1) {
  83 }
  84
  85 NavigationEntryImpl::~NavigationEntryImpl() {
  86 }
  87
  88 int NavigationEntryImpl::GetUniqueID() const {
  89   return unique_id_;
  90 }
  91
  92 PageType NavigationEntryImpl::GetPageType() const {
  93   return page_type_;
  94 }
  95
  96 void NavigationEntryImpl::SetURL(const GURL& url) {
  97   frame_tree_->frame_entry->set_url(url);
  98   cached_display_title_.clear();
  99 }
 100
 101 const GURL& NavigationEntryImpl::GetURL() const {
 102   return frame_tree_->frame_entry->url();
 103 }
 104
 105 void NavigationEntryImpl::SetBaseURLForDataURL(const GURL& url) {
 106   base_url_for_data_url_ = url;
 107 }
 108
 109 const GURL& NavigationEntryImpl::GetBaseURLForDataURL() const {
 110   return base_url_for_data_url_;
 111 }
 112
 113 void NavigationEntryImpl::SetReferrer(const Referrer& referrer) {
 114   frame_tree_->frame_entry->set_referrer(referrer);
 115 }
 116
 117 const Referrer& NavigationEntryImpl::GetReferrer() const {
 118   return frame_tree_->frame_entry->referrer();
 119 }
 120
 121 void NavigationEntryImpl::SetVirtualURL(const GURL& url) {
 122   virtual_url_ = (url == GetURL()) ? GURL() : url;
 123   cached_display_title_.clear();
 124 }
 125
 126 const GURL& NavigationEntryImpl::GetVirtualURL() const {
 127   return virtual_url_.is_empty() ? GetURL() : virtual_url_;
 128 }
 129
 130 void NavigationEntryImpl::SetTitle(const base::string16& title) {
 131   title_ = title;
 132   cached_display_title_.clear();
 133 }
 134
 135 const base::string16& NavigationEntryImpl::GetTitle() const {
 136   return title_;
 137 }
 138
 139 void NavigationEntryImpl::SetPageState(const PageState& state) {
 140   page_state_ = state;
 141 }
 142
 143 const PageState& NavigationEntryImpl::GetPageState() const {
 144   return page_state_;
 145 }
 146
 147 void NavigationEntryImpl::SetPageID(int page_id) {
 148   page_id_ = page_id;
 149 }
 150
 151 int32 NavigationEntryImpl::GetPageID() const {
 152   return page_id_;
 153 }
 154
 155 void NavigationEntryImpl::set_site_instance(SiteInstanceImpl* site_instance) {
 156   // TODO(creis): Update all callers and remove this method.
 157   frame_tree_->frame_entry->set_site_instance(site_instance);
 158 }
 159
 160 void NavigationEntryImpl::set_source_site_instance(
 161     SiteInstanceImpl* source_site_instance) {
 162   source_site_instance_ = source_site_instance;
 163 }
 164
 165 void NavigationEntryImpl::SetBindings(int bindings) {
 166   // Ensure this is set to a valid value, and that it stays the same once set.
 167   CHECK_NE(bindings, kInvalidBindings);
 168   CHECK(bindings_ == kInvalidBindings || bindings_ == bindings);
 169   bindings_ = bindings;
 170 }
 171
 172 const base::string16& NavigationEntryImpl::GetTitleForDisplay(
 173     const std::string& languages) const {
 174   // Most pages have real titles. Don't even bother caching anything if this is
 175   // the case.
 176   if (!title_.empty())
 177     return title_;
 178
 179   // More complicated cases will use the URLs as the title. This result we will
 180   // cache since it's more complicated to compute.
 181   if (!cached_display_title_.empty())
 182     return cached_display_title_;
 183
 184   // Use the virtual URL first if any, and fall back on using the real URL.
 185   base::string16 title;
 186   if (!virtual_url_.is_empty()) {
 187     title = net::FormatUrl(virtual_url_, languages);
 188   } else if (!GetURL().is_empty()) {
 189     title = net::FormatUrl(GetURL(), languages);
 190   }
 191
 192   // For file:// URLs use the filename as the title, not the full path.
 193   if (GetURL().SchemeIsFile()) {
 194     base::string16::size_type slashpos = title.rfind('/');
 195     if (slashpos != base::string16::npos)
 196       title = title.substr(slashpos + 1);
 197   }
 198
 199   gfx::ElideString(title, kMaxTitleChars, &cached_display_title_);
 200   return cached_display_title_;
 201 }
 202
 203 bool NavigationEntryImpl::IsViewSourceMode() const {
 204   return virtual_url_.SchemeIs(kViewSourceScheme);
 205 }
 206
 207 void NavigationEntryImpl::SetTransitionType(
 208     ui::PageTransition transition_type) {
 209   transition_type_ = transition_type;
 210 }
 211
 212 ui::PageTransition NavigationEntryImpl::GetTransitionType() const {
 213   return transition_type_;
 214 }
 215
 216 const GURL& NavigationEntryImpl::GetUserTypedURL() const {
 217   return user_typed_url_;
 218 }
 219
 220 void NavigationEntryImpl::SetHasPostData(bool has_post_data) {
 221   has_post_data_ = has_post_data;
 222 }
 223
 224 bool NavigationEntryImpl::GetHasPostData() const {
 225   return has_post_data_;
 226 }
 227
 228 void NavigationEntryImpl::SetPostID(int64 post_id) {
 229   post_id_ = post_id;
 230 }
 231
 232 int64 NavigationEntryImpl::GetPostID() const {
 233   return post_id_;
 234 }
 235
 236 void NavigationEntryImpl::SetBrowserInitiatedPostData(
 237     const base::RefCountedMemory* data) {
 238   browser_initiated_post_data_ = data;
 239 }
 240
 241 const base::RefCountedMemory*
 242 NavigationEntryImpl::GetBrowserInitiatedPostData() const {
 243   return browser_initiated_post_data_.get();
 244 }
 245
 246
 247 const FaviconStatus& NavigationEntryImpl::GetFavicon() const {
 248   return favicon_;
 249 }
 250
 251 FaviconStatus& NavigationEntryImpl::GetFavicon() {
 252   return favicon_;
 253 }
 254
 255 const SSLStatus& NavigationEntryImpl::GetSSL() const {
 256   return ssl_;
 257 }
 258
 259 SSLStatus& NavigationEntryImpl::GetSSL() {
 260   return ssl_;
 261 }
 262
 263 void NavigationEntryImpl::SetOriginalRequestURL(const GURL& original_url) {
 264   original_request_url_ = original_url;
 265 }
 266
 267 const GURL& NavigationEntryImpl::GetOriginalRequestURL() const {
 268   return original_request_url_;
 269 }
 270
 271 void NavigationEntryImpl::SetIsOverridingUserAgent(bool override) {
 272   is_overriding_user_agent_ = override;
 273 }
 274
 275 bool NavigationEntryImpl::GetIsOverridingUserAgent() const {
 276   return is_overriding_user_agent_;
 277 }
 278
 279 void NavigationEntryImpl::SetTimestamp(base::Time timestamp) {
 280   timestamp_ = timestamp;
 281 }
 282
 283 base::Time NavigationEntryImpl::GetTimestamp() const {
 284   return timestamp_;
 285 }
 286
 287 void NavigationEntryImpl::SetHttpStatusCode(int http_status_code) {
 288   http_status_code_ = http_status_code;
 289 }
 290
 291 int NavigationEntryImpl::GetHttpStatusCode() const {
 292   return http_status_code_;
 293 }
 294
 295 void NavigationEntryImpl::SetRedirectChain(
 296     const std::vector<GURL>& redirect_chain) {
 297   redirect_chain_ = redirect_chain;
 298 }
 299
 300 const std::vector<GURL>& NavigationEntryImpl::GetRedirectChain() const {
 301   return redirect_chain_;
 302 }
 303
 304 bool NavigationEntryImpl::IsRestored() const {
 305   return restore_type_ != RESTORE_NONE;
 306 }
 307
 308 void NavigationEntryImpl::SetCanLoadLocalResources(bool allow) {
 309   can_load_local_resources_ = allow;
 310 }
 311
 312 bool NavigationEntryImpl::GetCanLoadLocalResources() const {
 313   return can_load_local_resources_;
 314 }
 315
 316 void NavigationEntryImpl::SetExtraData(const std::string& key,
 317                                        const base::string16& data) {
 318   extra_data_[key] = data;
 319 }
 320
 321 bool NavigationEntryImpl::GetExtraData(const std::string& key,
 322                                        base::string16* data) const {
 323   std::map<std::string, base::string16>::const_iterator iter =
 324       extra_data_.find(key);
 325   if (iter == extra_data_.end())
 326     return false;
 327   *data = iter->second;
 328   return true;
 329 }
 330
 331 void NavigationEntryImpl::ClearExtraData(const std::string& key) {
 332   extra_data_.erase(key);
 333 }
 334
 335 NavigationEntryImpl* NavigationEntryImpl::Clone() const {
 336   NavigationEntryImpl* copy = new NavigationEntryImpl();
 337
 338   // TODO(creis): Only share the same FrameNavigationEntries if cloning within
 339   // the same tab.
 340   copy->frame_tree_.reset(frame_tree_->Clone());
 341
 342   // Copy all state over, unless cleared in ResetForCommit.
 343   copy->unique_id_ = unique_id_;
 344   copy->bindings_ = bindings_;
 345   copy->page_type_ = page_type_;
 346   copy->virtual_url_ = virtual_url_;
 347   copy->update_virtual_url_with_url_ = update_virtual_url_with_url_;
 348   copy->title_ = title_;
 349   copy->favicon_ = favicon_;
 350   copy->page_state_ = page_state_;
 351   copy->page_id_ = page_id_;
 352   copy->ssl_ = ssl_;
 353   copy->transition_type_ = transition_type_;
 354   copy->user_typed_url_ = user_typed_url_;
 355   copy->has_post_data_ = has_post_data_;
 356   copy->post_id_ = post_id_;
 357   copy->restore_type_ = restore_type_;
 358   copy->original_request_url_ = original_request_url_;
 359   copy->is_overriding_user_agent_ = is_overriding_user_agent_;
 360   copy->timestamp_ = timestamp_;
 361   copy->http_status_code_ = http_status_code_;
 362   // ResetForCommit: browser_initiated_post_data_
 363   copy->screenshot_ = screenshot_;
 364   copy->extra_headers_ = extra_headers_;
 365   // ResetForCommit: source_site_instance_
 366   copy->base_url_for_data_url_ = base_url_for_data_url_;
 367   // ResetForCommit: is_renderer_initiated_
 368   copy->cached_display_title_ = cached_display_title_;
 369   // ResetForCommit: transferred_global_request_id_
 370   // ResetForCommit: should_replace_entry_
 371   copy->redirect_chain_ = redirect_chain_;
 372   // ResetForCommit: should_clear_history_list_
 373   // ResetForCommit: frame_tree_node_id_
 374   // ResetForCommit: intent_received_timestamp_
 375   copy->extra_data_ = extra_data_;
 376
 377   return copy;
 378 }
 379
 380 CommonNavigationParams NavigationEntryImpl::ConstructCommonNavigationParams(
 381     FrameMsg_Navigate_Type::Value navigation_type) const {
 382   FrameMsg_UILoadMetricsReportType::Value report_type =
 383       FrameMsg_UILoadMetricsReportType::NO_REPORT;
 384   base::TimeTicks ui_timestamp = base::TimeTicks();
 385 #if defined(OS_ANDROID)
 386   if (!intent_received_timestamp().is_null())
 387     report_type = FrameMsg_UILoadMetricsReportType::REPORT_INTENT;
 388   ui_timestamp = intent_received_timestamp();
 389 #endif
 390
 391   return CommonNavigationParams(
 392       GetURL(), GetReferrer(), GetTransitionType(), navigation_type,
 393       !IsViewSourceMode(), ui_timestamp, report_type, GetBaseURLForDataURL(),
 394       GetHistoryURLForDataURL());
 395 }
 396
 397 StartNavigationParams NavigationEntryImpl::ConstructStartNavigationParams()
 398     const {
 399   std::vector<unsigned char> browser_initiated_post_data;
 400   if (GetBrowserInitiatedPostData()) {
 401     browser_initiated_post_data.assign(
 402         GetBrowserInitiatedPostData()->front(),
 403         GetBrowserInitiatedPostData()->front() +
 404             GetBrowserInitiatedPostData()->size());
 405   }
 406
 407   return StartNavigationParams(
 408       GetHasPostData(), extra_headers(), browser_initiated_post_data,
 409       should_replace_entry(), transferred_global_request_id().child_id,
 410       transferred_global_request_id().request_id);
 411 }
 412
 413 RequestNavigationParams NavigationEntryImpl::ConstructRequestNavigationParams(
 414     base::TimeTicks navigation_start,
 415     bool intended_as_new_entry,
 416     int pending_history_list_offset,
 417     int current_history_list_offset,
 418     int current_history_list_length) const {
 419   // Set the redirect chain to the navigation's redirects, unless returning to a
 420   // completed navigation (whose previous redirects don't apply).
 421   std::vector<GURL> redirects;
 422   if (ui::PageTransitionIsNewNavigation(GetTransitionType())) {
 423     redirects = GetRedirectChain();
 424   }
 425
 426   int pending_offset_to_send = pending_history_list_offset;
 427   int current_offset_to_send = current_history_list_offset;
 428   int current_length_to_send = current_history_list_length;
 429   if (should_clear_history_list()) {
 430     // Set the history list related parameters to the same values a
 431     // NavigationController would return before its first navigation. This will
 432     // fully clear the RenderView's view of the session history.
 433     pending_offset_to_send = -1;
 434     current_offset_to_send = -1;
 435     current_length_to_send = 0;
 436   }
 437   return RequestNavigationParams(
 438       GetIsOverridingUserAgent(), navigation_start, redirects,
 439       GetCanLoadLocalResources(), base::Time::Now(), GetPageState(),
 440       GetPageID(), GetUniqueID(), intended_as_new_entry, pending_offset_to_send,
 441       current_offset_to_send, current_length_to_send,
 442       should_clear_history_list());
 443 }
 444
 445 void NavigationEntryImpl::ResetForCommit() {
 446   // Any state that only matters when a navigation entry is pending should be
 447   // cleared here.
 448   // TODO(creis): This state should be moved to NavigationRequest once
 449   // PlzNavigate is enabled.
 450   SetBrowserInitiatedPostData(nullptr);
 451   set_source_site_instance(nullptr);
 452   set_is_renderer_initiated(false);
 453   set_transferred_global_request_id(GlobalRequestID());
 454   set_should_replace_entry(false);
 455
 456   set_should_clear_history_list(false);
 457   set_frame_tree_node_id(-1);
 458
 459 #if defined(OS_ANDROID)
 460   // Reset the time stamp so that the metrics are not reported if this entry is
 461   // loaded again in the future.
 462   set_intent_received_timestamp(base::TimeTicks());
 463 #endif
 464 }
 465
 466 void NavigationEntryImpl::AddOrUpdateFrameEntry(int frame_tree_node_id,
 467                                                 SiteInstanceImpl* site_instance,
 468                                                 const GURL& url,
 469                                                 const Referrer& referrer) {
 470   // TODO(creis): Walk tree to find the node to update.
 471   // TODO(creis): Only create a new entry if one doesn't exist yet.
 472   FrameNavigationEntry* frame_entry =
 473       new FrameNavigationEntry(site_instance, url, referrer);
 474   root_node()->children.push_back(
 475       new NavigationEntryImpl::TreeNode(frame_entry));
 476 }
 477
 478 void NavigationEntryImpl::SetScreenshotPNGData(
 479     scoped_refptr<base::RefCountedBytes> png_data) {
 480   screenshot_ = png_data;
 481   if (screenshot_.get())
 482     UMA_HISTOGRAM_MEMORY_KB("Overscroll.ScreenshotSize", screenshot_->size());
 483 }
 484
 485 GURL NavigationEntryImpl::GetHistoryURLForDataURL() const {
 486   return GetBaseURLForDataURL().is_empty() ? GURL() : GetVirtualURL();
 487 }
 488
 489 }  // namespace content