src/chrome/browser/google_apis/gdata_wapi_parser.cc

   1 // Copyright (c) 2012 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/google_apis/gdata_wapi_parser.h"
   6
   7 #include <algorithm>
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/files/file_path.h"
  12 #include "base/json/json_value_converter.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/strings/string_number_conversions.h"
  15 #include "base/strings/string_piece.h"
  16 #include "base/strings/string_util.h"
  17 #include "base/strings/utf_string_conversions.h"
  18 #include "base/values.h"
  19 #include "chrome/browser/google_apis/time_util.h"
  20
  21 using base::Value;
  22 using base::DictionaryValue;
  23 using base::ListValue;
  24
  25 namespace google_apis {
  26
  27 namespace {
  28
  29 // Term values for kSchemeKind category:
  30 const char kTermPrefix[] = "http://schemas.google.com/docs/2007#";
  31
  32 // Node names.
  33 const char kEntryNode[] = "entry";
  34
  35 // Field names.
  36 const char kAuthorField[] = "author";
  37 const char kCategoryField[] = "category";
  38 const char kChangestampField[] = "docs$changestamp.value";
  39 const char kContentField[] = "content";
  40 const char kDeletedField[] = "gd$deleted";
  41 const char kETagField[] = "gd$etag";
  42 const char kEmailField[] = "email.$t";
  43 const char kEntryField[] = "entry";
  44 const char kFeedField[] = "feed";
  45 const char kFeedLinkField[] = "gd$feedLink";
  46 const char kFileNameField[] = "docs$filename.$t";
  47 const char kHrefField[] = "href";
  48 const char kIDField[] = "id.$t";
  49 const char kInstalledAppField[] = "docs$installedApp";
  50 const char kInstalledAppNameField[] = "docs$installedAppName";
  51 const char kInstalledAppIdField[] = "docs$installedAppId";
  52 const char kInstalledAppIconField[] = "docs$installedAppIcon";
  53 const char kInstalledAppIconCategoryField[] = "docs$installedAppIconCategory";
  54 const char kInstalledAppIconSizeField[] = "docs$installedAppIconSize";
  55 const char kInstalledAppObjectTypeField[] = "docs$installedAppObjectType";
  56 const char kInstalledAppPrimaryFileExtensionField[] =
  57     "docs$installedAppPrimaryFileExtension";
  58 const char kInstalledAppPrimaryMimeTypeField[] =
  59     "docs$installedAppPrimaryMimeType";
  60 const char kInstalledAppSecondaryFileExtensionField[] =
  61     "docs$installedAppSecondaryFileExtension";
  62 const char kInstalledAppSecondaryMimeTypeField[] =
  63     "docs$installedAppSecondaryMimeType";
  64 const char kInstalledAppSupportsCreateField[] =
  65     "docs$installedAppSupportsCreate";
  66 const char kItemsPerPageField[] = "openSearch$itemsPerPage.$t";
  67 const char kLabelField[] = "label";
  68 const char kLargestChangestampField[] = "docs$largestChangestamp.value";
  69 const char kLastViewedField[] = "gd$lastViewed.$t";
  70 const char kLinkField[] = "link";
  71 const char kMD5Field[] = "docs$md5Checksum.$t";
  72 const char kNameField[] = "name.$t";
  73 const char kPublishedField[] = "published.$t";
  74 const char kQuotaBytesTotalField[] = "gd$quotaBytesTotal.$t";
  75 const char kQuotaBytesUsedField[] = "gd$quotaBytesUsed.$t";
  76 const char kRelField[] = "rel";
  77 const char kRemovedField[] = "docs$removed";
  78 const char kResourceIdField[] = "gd$resourceId.$t";
  79 const char kSchemeField[] = "scheme";
  80 const char kSizeField[] = "docs$size.$t";
  81 const char kSrcField[] = "src";
  82 const char kStartIndexField[] = "openSearch$startIndex.$t";
  83 const char kSuggestedFileNameField[] = "docs$suggestedFilename.$t";
  84 const char kTField[] = "$t";
  85 const char kTermField[] = "term";
  86 const char kTitleField[] = "title";
  87 const char kTitleTField[] = "title.$t";
  88 const char kTypeField[] = "type";
  89 const char kUpdatedField[] = "updated.$t";
  90
  91 // Link Prefixes
  92 const char kOpenWithPrefix[] = "http://schemas.google.com/docs/2007#open-with-";
  93 const size_t kOpenWithPrefixSize = arraysize(kOpenWithPrefix) - 1;
  94
  95 struct EntryKindMap {
  96   DriveEntryKind kind;
  97   const char* entry;
  98   const char* extension;
  99 };
 100
 101 const EntryKindMap kEntryKindMap[] = {
 102     { ENTRY_KIND_UNKNOWN,      "unknown",      NULL},
 103     { ENTRY_KIND_ITEM,         "item",         NULL},
 104     { ENTRY_KIND_DOCUMENT,     "document",     ".gdoc"},
 105     { ENTRY_KIND_SPREADSHEET,  "spreadsheet",  ".gsheet"},
 106     { ENTRY_KIND_PRESENTATION, "presentation", ".gslides" },
 107     { ENTRY_KIND_DRAWING,      "drawing",      ".gdraw"},
 108     { ENTRY_KIND_TABLE,        "table",        ".gtable"},
 109     { ENTRY_KIND_FORM,         "form",         ".gform"},
 110     { ENTRY_KIND_EXTERNAL_APP, "externalapp",  ".glink"},
 111     { ENTRY_KIND_SITE,         "site",         NULL},
 112     { ENTRY_KIND_FOLDER,       "folder",       NULL},
 113     { ENTRY_KIND_FILE,         "file",         NULL},
 114     { ENTRY_KIND_PDF,          "pdf",          NULL},
 115 };
 116 COMPILE_ASSERT(arraysize(kEntryKindMap) == ENTRY_KIND_MAX_VALUE,
 117                EntryKindMap_and_DriveEntryKind_are_not_in_sync);
 118
 119 struct LinkTypeMap {
 120   Link::LinkType type;
 121   const char* rel;
 122 };
 123
 124 const LinkTypeMap kLinkTypeMap[] = {
 125     { Link::LINK_SELF,
 126       "self" },
 127     { Link::LINK_NEXT,
 128       "next" },
 129     { Link::LINK_PARENT,
 130       "http://schemas.google.com/docs/2007#parent" },
 131     { Link::LINK_ALTERNATE,
 132       "alternate"},
 133     { Link::LINK_EDIT,
 134       "edit" },
 135     { Link::LINK_EDIT_MEDIA,
 136       "edit-media" },
 137     { Link::LINK_ALT_EDIT_MEDIA,
 138       "http://schemas.google.com/docs/2007#alt-edit-media" },
 139     { Link::LINK_ALT_POST,
 140       "http://schemas.google.com/docs/2007#alt-post" },
 141     { Link::LINK_FEED,
 142       "http://schemas.google.com/g/2005#feed"},
 143     { Link::LINK_POST,
 144       "http://schemas.google.com/g/2005#post"},
 145     { Link::LINK_BATCH,
 146       "http://schemas.google.com/g/2005#batch"},
 147     { Link::LINK_THUMBNAIL,
 148       "http://schemas.google.com/docs/2007/thumbnail"},
 149     { Link::LINK_RESUMABLE_EDIT_MEDIA,
 150       "http://schemas.google.com/g/2005#resumable-edit-media"},
 151     { Link::LINK_RESUMABLE_CREATE_MEDIA,
 152       "http://schemas.google.com/g/2005#resumable-create-media"},
 153     { Link::LINK_TABLES_FEED,
 154       "http://schemas.google.com/spreadsheets/2006#tablesfeed"},
 155     { Link::LINK_WORKSHEET_FEED,
 156       "http://schemas.google.com/spreadsheets/2006#worksheetsfeed"},
 157     { Link::LINK_EMBED,
 158       "http://schemas.google.com/docs/2007#embed"},
 159     { Link::LINK_PRODUCT,
 160       "http://schemas.google.com/docs/2007#product"},
 161     { Link::LINK_ICON,
 162       "http://schemas.google.com/docs/2007#icon"},
 163     { Link::LINK_SHARE,
 164       "http://schemas.google.com/docs/2007#share"},
 165 };
 166
 167 struct ResourceLinkTypeMap {
 168   ResourceLink::ResourceLinkType type;
 169   const char* rel;
 170 };
 171
 172 const ResourceLinkTypeMap kFeedLinkTypeMap[] = {
 173     { ResourceLink::FEED_LINK_ACL,
 174       "http://schemas.google.com/acl/2007#accessControlList" },
 175     { ResourceLink::FEED_LINK_REVISIONS,
 176       "http://schemas.google.com/docs/2007/revisions" },
 177 };
 178
 179 struct CategoryTypeMap {
 180   Category::CategoryType type;
 181   const char* scheme;
 182 };
 183
 184 const CategoryTypeMap kCategoryTypeMap[] = {
 185     { Category::CATEGORY_KIND, "http://schemas.google.com/g/2005#kind" },
 186     { Category::CATEGORY_LABEL, "http://schemas.google.com/g/2005/labels" },
 187 };
 188
 189 struct AppIconCategoryMap {
 190   AppIcon::IconCategory category;
 191   const char* category_name;
 192 };
 193
 194 const AppIconCategoryMap kAppIconCategoryMap[] = {
 195     { AppIcon::ICON_DOCUMENT, "document" },
 196     { AppIcon::ICON_APPLICATION, "application" },
 197     { AppIcon::ICON_SHARED_DOCUMENT, "documentShared" },
 198 };
 199
 200 // Converts |url_string| to |result|.  Always returns true to be used
 201 // for JSONValueConverter::RegisterCustomField method.
 202 // TODO(mukai): make it return false in case of invalid |url_string|.
 203 bool GetGURLFromString(const base::StringPiece& url_string, GURL* result) {
 204   *result = GURL(url_string.as_string());
 205   return true;
 206 }
 207
 208 // Converts boolean string values like "true" into bool.
 209 bool GetBoolFromString(const base::StringPiece& value, bool* result) {
 210   *result = (value == "true");
 211   return true;
 212 }
 213
 214 bool SortBySize(const InstalledApp::IconList::value_type& a,
 215                 const InstalledApp::IconList::value_type& b) {
 216   return a.first < b.first;
 217 }
 218
 219 }  // namespace
 220
 221 ////////////////////////////////////////////////////////////////////////////////
 222 // Author implementation
 223
 224 Author::Author() {
 225 }
 226
 227 // static
 228 void Author::RegisterJSONConverter(
 229     base::JSONValueConverter<Author>* converter) {
 230   converter->RegisterStringField(kNameField, &Author::name_);
 231   converter->RegisterStringField(kEmailField, &Author::email_);
 232 }
 233
 234 ////////////////////////////////////////////////////////////////////////////////
 235 // Link implementation
 236
 237 Link::Link() : type_(Link::LINK_UNKNOWN) {
 238 }
 239
 240 Link::~Link() {
 241 }
 242
 243 // static
 244 bool Link::GetAppID(const base::StringPiece& rel, std::string* app_id) {
 245   DCHECK(app_id);
 246   // Fast return path if the link clearly isn't an OPEN_WITH link.
 247   if (rel.size() < kOpenWithPrefixSize) {
 248     app_id->clear();
 249     return true;
 250   }
 251
 252   const std::string kOpenWithPrefixStr(kOpenWithPrefix);
 253   if (StartsWithASCII(rel.as_string(), kOpenWithPrefixStr, false)) {
 254     *app_id = rel.as_string().substr(kOpenWithPrefixStr.size());
 255     return true;
 256   }
 257
 258   app_id->clear();
 259   return true;
 260 }
 261
 262 // static.
 263 bool Link::GetLinkType(const base::StringPiece& rel, Link::LinkType* type) {
 264   DCHECK(type);
 265   for (size_t i = 0; i < arraysize(kLinkTypeMap); i++) {
 266     if (rel == kLinkTypeMap[i].rel) {
 267       *type = kLinkTypeMap[i].type;
 268       return true;
 269     }
 270   }
 271
 272   // OPEN_WITH links have extra information at the end of the rel that is unique
 273   // for each one, so we can't just check the usual map. This check is slightly
 274   // redundant to provide a quick skip if it's obviously not an OPEN_WITH url.
 275   if (rel.size() >= kOpenWithPrefixSize &&
 276       StartsWithASCII(rel.as_string(), kOpenWithPrefix, false)) {
 277     *type = LINK_OPEN_WITH;
 278     return true;
 279   }
 280
 281   // Let unknown link types through, just report it; if the link type is needed
 282   // in the future, add it into LinkType and kLinkTypeMap.
 283   DVLOG(1) << "Ignoring unknown link type for rel " << rel;
 284   *type = LINK_UNKNOWN;
 285   return true;
 286 }
 287
 288 // static
 289 void Link::RegisterJSONConverter(base::JSONValueConverter<Link>* converter) {
 290   converter->RegisterCustomField<Link::LinkType>(kRelField,
 291                                                  &Link::type_,
 292                                                  &Link::GetLinkType);
 293   // We have to register kRelField twice because we extract two different pieces
 294   // of data from the same rel field.
 295   converter->RegisterCustomField<std::string>(kRelField,
 296                                               &Link::app_id_,
 297                                               &Link::GetAppID);
 298   converter->RegisterCustomField(kHrefField, &Link::href_, &GetGURLFromString);
 299   converter->RegisterStringField(kTitleField, &Link::title_);
 300   converter->RegisterStringField(kTypeField, &Link::mime_type_);
 301 }
 302
 303 ////////////////////////////////////////////////////////////////////////////////
 304 // ResourceLink implementation
 305
 306 ResourceLink::ResourceLink() : type_(ResourceLink::FEED_LINK_UNKNOWN) {
 307 }
 308
 309 // static.
 310 bool ResourceLink::GetFeedLinkType(
 311     const base::StringPiece& rel, ResourceLink::ResourceLinkType* result) {
 312   for (size_t i = 0; i < arraysize(kFeedLinkTypeMap); i++) {
 313     if (rel == kFeedLinkTypeMap[i].rel) {
 314       *result = kFeedLinkTypeMap[i].type;
 315       return true;
 316     }
 317   }
 318   DVLOG(1) << "Unknown feed link type for rel " << rel;
 319   return false;
 320 }
 321
 322 // static
 323 void ResourceLink::RegisterJSONConverter(
 324     base::JSONValueConverter<ResourceLink>* converter) {
 325   converter->RegisterCustomField<ResourceLink::ResourceLinkType>(
 326       kRelField, &ResourceLink::type_, &ResourceLink::GetFeedLinkType);
 327   converter->RegisterCustomField(
 328       kHrefField, &ResourceLink::href_, &GetGURLFromString);
 329 }
 330
 331 ////////////////////////////////////////////////////////////////////////////////
 332 // Category implementation
 333
 334 Category::Category() : type_(CATEGORY_UNKNOWN) {
 335 }
 336
 337 // Converts category.scheme into CategoryType enum.
 338 bool Category::GetCategoryTypeFromScheme(
 339     const base::StringPiece& scheme, Category::CategoryType* result) {
 340   for (size_t i = 0; i < arraysize(kCategoryTypeMap); i++) {
 341     if (scheme == kCategoryTypeMap[i].scheme) {
 342       *result = kCategoryTypeMap[i].type;
 343       return true;
 344     }
 345   }
 346   DVLOG(1) << "Unknown feed link type for scheme " << scheme;
 347   return false;
 348 }
 349
 350 // static
 351 void Category::RegisterJSONConverter(
 352     base::JSONValueConverter<Category>* converter) {
 353   converter->RegisterStringField(kLabelField, &Category::label_);
 354   converter->RegisterCustomField<Category::CategoryType>(
 355       kSchemeField, &Category::type_, &Category::GetCategoryTypeFromScheme);
 356   converter->RegisterStringField(kTermField, &Category::term_);
 357 }
 358
 359 const Link* CommonMetadata::GetLinkByType(Link::LinkType type) const {
 360   for (size_t i = 0; i < links_.size(); ++i) {
 361     if (links_[i]->type() == type)
 362       return links_[i];
 363   }
 364   return NULL;
 365 }
 366
 367 ////////////////////////////////////////////////////////////////////////////////
 368 // Content implementation
 369
 370 Content::Content() {
 371 }
 372
 373 // static
 374 void Content::RegisterJSONConverter(
 375     base::JSONValueConverter<Content>* converter) {
 376   converter->RegisterCustomField(kSrcField, &Content::url_, &GetGURLFromString);
 377   converter->RegisterStringField(kTypeField, &Content::mime_type_);
 378 }
 379
 380 ////////////////////////////////////////////////////////////////////////////////
 381 // AppIcon implementation
 382
 383 AppIcon::AppIcon() : category_(AppIcon::ICON_UNKNOWN), icon_side_length_(0) {
 384 }
 385
 386 AppIcon::~AppIcon() {
 387 }
 388
 389 // static
 390 void AppIcon::RegisterJSONConverter(
 391     base::JSONValueConverter<AppIcon>* converter) {
 392   converter->RegisterCustomField<AppIcon::IconCategory>(
 393       kInstalledAppIconCategoryField,
 394       &AppIcon::category_,
 395       &AppIcon::GetIconCategory);
 396   converter->RegisterCustomField<int>(kInstalledAppIconSizeField,
 397                                       &AppIcon::icon_side_length_,
 398                                       base::StringToInt);
 399   converter->RegisterRepeatedMessage(kLinkField, &AppIcon::links_);
 400 }
 401
 402 GURL AppIcon::GetIconURL() const {
 403   for (size_t i = 0; i < links_.size(); ++i) {
 404     if (links_[i]->type() == Link::LINK_ICON)
 405       return links_[i]->href();
 406   }
 407   return GURL();
 408 }
 409
 410 // static
 411 bool AppIcon::GetIconCategory(const base::StringPiece& category,
 412                               AppIcon::IconCategory* result) {
 413   for (size_t i = 0; i < arraysize(kAppIconCategoryMap); i++) {
 414     if (category == kAppIconCategoryMap[i].category_name) {
 415       *result = kAppIconCategoryMap[i].category;
 416       return true;
 417     }
 418   }
 419   DVLOG(1) << "Unknown icon category " << category;
 420   return false;
 421 }
 422
 423 ////////////////////////////////////////////////////////////////////////////////
 424 // CommonMetadata implementation
 425
 426 CommonMetadata::CommonMetadata() {
 427 }
 428
 429 CommonMetadata::~CommonMetadata() {
 430 }
 431
 432 // static
 433 template<typename CommonMetadataDescendant>
 434 void CommonMetadata::RegisterJSONConverter(
 435     base::JSONValueConverter<CommonMetadataDescendant>* converter) {
 436   converter->RegisterStringField(kETagField, &CommonMetadata::etag_);
 437   converter->template RegisterRepeatedMessage<Author>(
 438       kAuthorField, &CommonMetadata::authors_);
 439   converter->template RegisterRepeatedMessage<Link>(
 440       kLinkField, &CommonMetadata::links_);
 441   converter->template RegisterRepeatedMessage<Category>(
 442       kCategoryField, &CommonMetadata::categories_);
 443   converter->template RegisterCustomField<base::Time>(
 444       kUpdatedField, &CommonMetadata::updated_time_, &util::GetTimeFromString);
 445 }
 446
 447 ////////////////////////////////////////////////////////////////////////////////
 448 // ResourceEntry implementation
 449
 450 ResourceEntry::ResourceEntry()
 451     : kind_(ENTRY_KIND_UNKNOWN),
 452       file_size_(0),
 453       deleted_(false),
 454       removed_(false),
 455       changestamp_(0),
 456       image_width_(-1),
 457       image_height_(-1),
 458       image_rotation_(-1) {
 459 }
 460
 461 ResourceEntry::~ResourceEntry() {
 462 }
 463
 464 bool ResourceEntry::HasFieldPresent(const base::Value* value,
 465                                     bool* result) {
 466   *result = (value != NULL);
 467   return true;
 468 }
 469
 470 bool ResourceEntry::ParseChangestamp(const base::Value* value,
 471                                      int64* result) {
 472   DCHECK(result);
 473   if (!value) {
 474     *result = 0;
 475     return true;
 476   }
 477
 478   std::string string_value;
 479   if (value->GetAsString(&string_value) &&
 480       base::StringToInt64(string_value, result))
 481     return true;
 482
 483   return false;
 484 }
 485
 486 // static
 487 void ResourceEntry::RegisterJSONConverter(
 488     base::JSONValueConverter<ResourceEntry>* converter) {
 489   // Inherit the parent registrations.
 490   CommonMetadata::RegisterJSONConverter(converter);
 491   converter->RegisterStringField(
 492       kResourceIdField, &ResourceEntry::resource_id_);
 493   converter->RegisterStringField(kIDField, &ResourceEntry::id_);
 494   converter->RegisterStringField(kTitleTField, &ResourceEntry::title_);
 495   converter->RegisterCustomField<base::Time>(
 496       kPublishedField, &ResourceEntry::published_time_,
 497       &util::GetTimeFromString);
 498   converter->RegisterCustomField<base::Time>(
 499       kLastViewedField, &ResourceEntry::last_viewed_time_,
 500       &util::GetTimeFromString);
 501   converter->RegisterRepeatedMessage(
 502       kFeedLinkField, &ResourceEntry::resource_links_);
 503   converter->RegisterNestedField(kContentField, &ResourceEntry::content_);
 504
 505   // File properties.  If the resource type is not a normal file, then
 506   // that's no problem because those feed must not have these fields
 507   // themselves, which does not report errors.
 508   converter->RegisterStringField(kFileNameField, &ResourceEntry::filename_);
 509   converter->RegisterStringField(kMD5Field, &ResourceEntry::file_md5_);
 510   converter->RegisterCustomField<int64>(
 511       kSizeField, &ResourceEntry::file_size_, &base::StringToInt64);
 512   converter->RegisterStringField(
 513       kSuggestedFileNameField, &ResourceEntry::suggested_filename_);
 514   // Deleted are treated as 'trashed' items on web client side. Removed files
 515   // are gone for good. We treat both cases as 'deleted' for this client.
 516   converter->RegisterCustomValueField<bool>(
 517       kDeletedField, &ResourceEntry::deleted_, &ResourceEntry::HasFieldPresent);
 518   converter->RegisterCustomValueField<bool>(
 519       kRemovedField, &ResourceEntry::removed_, &ResourceEntry::HasFieldPresent);
 520   converter->RegisterCustomValueField<int64>(
 521       kChangestampField, &ResourceEntry::changestamp_,
 522       &ResourceEntry::ParseChangestamp);
 523   // ImageMediaMetadata fields are not supported by WAPI.
 524 }
 525
 526 std::string ResourceEntry::GetHostedDocumentExtension() const {
 527   for (size_t i = 0; i < arraysize(kEntryKindMap); i++) {
 528     if (kEntryKindMap[i].kind == kind_) {
 529       if (kEntryKindMap[i].extension)
 530         return std::string(kEntryKindMap[i].extension);
 531       else
 532         return std::string();
 533     }
 534   }
 535   return std::string();
 536 }
 537
 538 // static
 539 int ResourceEntry::ClassifyEntryKindByFileExtension(
 540     const base::FilePath& file_path) {
 541 #if defined(OS_WIN)
 542   std::string file_extension = WideToUTF8(file_path.Extension());
 543 #else
 544   std::string file_extension = file_path.Extension();
 545 #endif
 546   for (size_t i = 0; i < arraysize(kEntryKindMap); ++i) {
 547     const char* document_extension = kEntryKindMap[i].extension;
 548     if (document_extension && file_extension == document_extension)
 549       return ClassifyEntryKind(kEntryKindMap[i].kind);
 550   }
 551   return 0;
 552 }
 553
 554 // static
 555 DriveEntryKind ResourceEntry::GetEntryKindFromTerm(
 556     const std::string& term) {
 557   if (!StartsWithASCII(term, kTermPrefix, false)) {
 558     DVLOG(1) << "Unexpected term prefix term " << term;
 559     return ENTRY_KIND_UNKNOWN;
 560   }
 561
 562   std::string type = term.substr(strlen(kTermPrefix));
 563   for (size_t i = 0; i < arraysize(kEntryKindMap); i++) {
 564     if (type == kEntryKindMap[i].entry)
 565       return kEntryKindMap[i].kind;
 566   }
 567   DVLOG(1) << "Unknown entry type for term " << term << ", type " << type;
 568   return ENTRY_KIND_UNKNOWN;
 569 }
 570
 571 // static
 572 int ResourceEntry::ClassifyEntryKind(DriveEntryKind kind) {
 573   int classes = 0;
 574
 575   // All DriveEntryKind members are listed here, so the compiler catches if a
 576   // newly added member is missing here.
 577   switch (kind) {
 578     case ENTRY_KIND_UNKNOWN:
 579     // Special entries.
 580     case ENTRY_KIND_ITEM:
 581     case ENTRY_KIND_SITE:
 582       break;
 583
 584     // Hosted Google document.
 585     case ENTRY_KIND_DOCUMENT:
 586     case ENTRY_KIND_SPREADSHEET:
 587     case ENTRY_KIND_PRESENTATION:
 588     case ENTRY_KIND_DRAWING:
 589     case ENTRY_KIND_TABLE:
 590     case ENTRY_KIND_FORM:
 591       classes = KIND_OF_GOOGLE_DOCUMENT | KIND_OF_HOSTED_DOCUMENT;
 592       break;
 593
 594     // Hosted external application document.
 595     case ENTRY_KIND_EXTERNAL_APP:
 596       classes = KIND_OF_EXTERNAL_DOCUMENT | KIND_OF_HOSTED_DOCUMENT;
 597       break;
 598
 599     // Folders, collections.
 600     case ENTRY_KIND_FOLDER:
 601       classes = KIND_OF_FOLDER;
 602       break;
 603
 604     // Regular files.
 605     case ENTRY_KIND_FILE:
 606     case ENTRY_KIND_PDF:
 607       classes = KIND_OF_FILE;
 608       break;
 609
 610     case ENTRY_KIND_MAX_VALUE:
 611       NOTREACHED();
 612   }
 613
 614   return classes;
 615 }
 616
 617 void ResourceEntry::FillRemainingFields() {
 618   // Set |kind_| and |labels_| based on the |categories_| in the class.
 619   // JSONValueConverter does not have the ability to catch an element in a list
 620   // based on a predicate.  Thus we need to iterate over |categories_| and
 621   // find the elements to set these fields as a post-process.
 622   for (size_t i = 0; i < categories_.size(); ++i) {
 623     const Category* category = categories_[i];
 624     if (category->type() == Category::CATEGORY_KIND)
 625       kind_ = GetEntryKindFromTerm(category->term());
 626     else if (category->type() == Category::CATEGORY_LABEL)
 627       labels_.push_back(category->label());
 628   }
 629 }
 630
 631 // static
 632 scoped_ptr<ResourceEntry> ResourceEntry::ExtractAndParse(
 633     const base::Value& value) {
 634   const base::DictionaryValue* as_dict = NULL;
 635   const base::DictionaryValue* entry_dict = NULL;
 636   if (value.GetAsDictionary(&as_dict) &&
 637       as_dict->GetDictionary(kEntryField, &entry_dict)) {
 638     return ResourceEntry::CreateFrom(*entry_dict);
 639   }
 640   return scoped_ptr<ResourceEntry>();
 641 }
 642
 643 // static
 644 scoped_ptr<ResourceEntry> ResourceEntry::CreateFrom(const base::Value& value) {
 645   base::JSONValueConverter<ResourceEntry> converter;
 646   scoped_ptr<ResourceEntry> entry(new ResourceEntry());
 647   if (!converter.Convert(value, entry.get())) {
 648     DVLOG(1) << "Invalid resource entry!";
 649     return scoped_ptr<ResourceEntry>();
 650   }
 651
 652   entry->FillRemainingFields();
 653   return entry.Pass();
 654 }
 655
 656 // static
 657 std::string ResourceEntry::GetEntryNodeName() {
 658   return kEntryNode;
 659 }
 660
 661 ////////////////////////////////////////////////////////////////////////////////
 662 // ResourceList implementation
 663
 664 ResourceList::ResourceList()
 665     : start_index_(0),
 666       items_per_page_(0),
 667       largest_changestamp_(0) {
 668 }
 669
 670 ResourceList::~ResourceList() {
 671 }
 672
 673 // static
 674 void ResourceList::RegisterJSONConverter(
 675     base::JSONValueConverter<ResourceList>* converter) {
 676   // inheritance
 677   CommonMetadata::RegisterJSONConverter(converter);
 678   // TODO(zelidrag): Once we figure out where these will be used, we should
 679   // check for valid start_index_ and items_per_page_ values.
 680   converter->RegisterCustomField<int>(
 681       kStartIndexField, &ResourceList::start_index_, &base::StringToInt);
 682   converter->RegisterCustomField<int>(
 683       kItemsPerPageField, &ResourceList::items_per_page_, &base::StringToInt);
 684   converter->RegisterStringField(kTitleTField, &ResourceList::title_);
 685   converter->RegisterRepeatedMessage(kEntryField, &ResourceList::entries_);
 686   converter->RegisterCustomField<int64>(
 687      kLargestChangestampField, &ResourceList::largest_changestamp_,
 688      &base::StringToInt64);
 689 }
 690
 691 bool ResourceList::Parse(const base::Value& value) {
 692   base::JSONValueConverter<ResourceList> converter;
 693   if (!converter.Convert(value, this)) {
 694     DVLOG(1) << "Invalid resource list!";
 695     return false;
 696   }
 697
 698   ScopedVector<ResourceEntry>::iterator iter = entries_.begin();
 699   while (iter != entries_.end()) {
 700     ResourceEntry* entry = (*iter);
 701     entry->FillRemainingFields();
 702     ++iter;
 703   }
 704   return true;
 705 }
 706
 707 // static
 708 scoped_ptr<ResourceList> ResourceList::ExtractAndParse(
 709     const base::Value& value) {
 710   const base::DictionaryValue* as_dict = NULL;
 711   const base::DictionaryValue* feed_dict = NULL;
 712   if (value.GetAsDictionary(&as_dict) &&
 713       as_dict->GetDictionary(kFeedField, &feed_dict)) {
 714     return ResourceList::CreateFrom(*feed_dict);
 715   }
 716   return scoped_ptr<ResourceList>();
 717 }
 718
 719 // static
 720 scoped_ptr<ResourceList> ResourceList::CreateFrom(const base::Value& value) {
 721   scoped_ptr<ResourceList> feed(new ResourceList());
 722   if (!feed->Parse(value)) {
 723     DVLOG(1) << "Invalid resource list!";
 724     return scoped_ptr<ResourceList>();
 725   }
 726
 727   return feed.Pass();
 728 }
 729
 730 bool ResourceList::GetNextFeedURL(GURL* url) const {
 731   DCHECK(url);
 732   for (size_t i = 0; i < links_.size(); ++i) {
 733     if (links_[i]->type() == Link::LINK_NEXT) {
 734       *url = links_[i]->href();
 735       return true;
 736     }
 737   }
 738   return false;
 739 }
 740
 741 void ResourceList::ReleaseEntries(std::vector<ResourceEntry*>* entries) {
 742   entries_.release(entries);
 743 }
 744
 745 ////////////////////////////////////////////////////////////////////////////////
 746 // InstalledApp implementation
 747
 748 InstalledApp::InstalledApp() : supports_create_(false) {
 749 }
 750
 751 InstalledApp::~InstalledApp() {
 752 }
 753
 754 InstalledApp::IconList InstalledApp::GetIconsForCategory(
 755     AppIcon::IconCategory category) const {
 756   IconList result;
 757
 758   for (ScopedVector<AppIcon>::const_iterator icon_iter = app_icons_.begin();
 759        icon_iter != app_icons_.end(); ++icon_iter) {
 760     if ((*icon_iter)->category() != category)
 761       continue;
 762     GURL icon_url = (*icon_iter)->GetIconURL();
 763     if (icon_url.is_empty())
 764       continue;
 765     result.push_back(std::make_pair((*icon_iter)->icon_side_length(),
 766                                     icon_url));
 767   }
 768
 769   // Return a sorted list, smallest to largest.
 770   std::sort(result.begin(), result.end(), SortBySize);
 771   return result;
 772 }
 773
 774 GURL InstalledApp::GetProductUrl() const {
 775   for (ScopedVector<Link>::const_iterator it = links_.begin();
 776        it != links_.end(); ++it) {
 777     const Link* link = *it;
 778     if (link->type() == Link::LINK_PRODUCT)
 779       return link->href();
 780   }
 781   return GURL();
 782 }
 783
 784 // static
 785 bool InstalledApp::GetValueString(const base::Value* value,
 786                                   std::string* result) {
 787   const base::DictionaryValue* dict = NULL;
 788   if (!value->GetAsDictionary(&dict))
 789     return false;
 790
 791   if (!dict->GetString(kTField, result))
 792     return false;
 793
 794   return true;
 795 }
 796
 797 // static
 798 void InstalledApp::RegisterJSONConverter(
 799     base::JSONValueConverter<InstalledApp>* converter) {
 800   converter->RegisterRepeatedMessage(kInstalledAppIconField,
 801                                      &InstalledApp::app_icons_);
 802   converter->RegisterStringField(kInstalledAppIdField,
 803                                  &InstalledApp::app_id_);
 804   converter->RegisterStringField(kInstalledAppNameField,
 805                                  &InstalledApp::app_name_);
 806   converter->RegisterStringField(kInstalledAppObjectTypeField,
 807                                  &InstalledApp::object_type_);
 808   converter->RegisterCustomField<bool>(kInstalledAppSupportsCreateField,
 809                                        &InstalledApp::supports_create_,
 810                                        &GetBoolFromString);
 811   converter->RegisterRepeatedCustomValue(kInstalledAppPrimaryMimeTypeField,
 812                                          &InstalledApp::primary_mimetypes_,
 813                                          &GetValueString);
 814   converter->RegisterRepeatedCustomValue(kInstalledAppSecondaryMimeTypeField,
 815                                          &InstalledApp::secondary_mimetypes_,
 816                                          &GetValueString);
 817   converter->RegisterRepeatedCustomValue(kInstalledAppPrimaryFileExtensionField,
 818                                          &InstalledApp::primary_extensions_,
 819                                          &GetValueString);
 820   converter->RegisterRepeatedCustomValue(
 821       kInstalledAppSecondaryFileExtensionField,
 822       &InstalledApp::secondary_extensions_,
 823       &GetValueString);
 824   converter->RegisterRepeatedMessage(kLinkField, &InstalledApp::links_);
 825 }
 826
 827 ////////////////////////////////////////////////////////////////////////////////
 828 // AccountMetadata implementation
 829
 830 AccountMetadata::AccountMetadata()
 831     : quota_bytes_total_(0),
 832       quota_bytes_used_(0),
 833       largest_changestamp_(0) {
 834 }
 835
 836 AccountMetadata::~AccountMetadata() {
 837 }
 838
 839 // static
 840 void AccountMetadata::RegisterJSONConverter(
 841     base::JSONValueConverter<AccountMetadata>* converter) {
 842   converter->RegisterCustomField<int64>(
 843       kQuotaBytesTotalField,
 844       &AccountMetadata::quota_bytes_total_,
 845       &base::StringToInt64);
 846   converter->RegisterCustomField<int64>(
 847       kQuotaBytesUsedField,
 848       &AccountMetadata::quota_bytes_used_,
 849       &base::StringToInt64);
 850   converter->RegisterCustomField<int64>(
 851       kLargestChangestampField,
 852       &AccountMetadata::largest_changestamp_,
 853       &base::StringToInt64);
 854   converter->RegisterRepeatedMessage(kInstalledAppField,
 855                                      &AccountMetadata::installed_apps_);
 856 }
 857
 858 // static
 859 scoped_ptr<AccountMetadata> AccountMetadata::CreateFrom(
 860     const base::Value& value) {
 861   scoped_ptr<AccountMetadata> metadata(new AccountMetadata());
 862   const base::DictionaryValue* dictionary = NULL;
 863   const base::Value* entry = NULL;
 864   if (!value.GetAsDictionary(&dictionary) ||
 865       !dictionary->Get(kEntryField, &entry) ||
 866       !metadata->Parse(*entry)) {
 867     LOG(ERROR) << "Unable to create: Invalid account metadata feed!";
 868     return scoped_ptr<AccountMetadata>();
 869   }
 870
 871   return metadata.Pass();
 872 }
 873
 874 bool AccountMetadata::Parse(const base::Value& value) {
 875   base::JSONValueConverter<AccountMetadata> converter;
 876   if (!converter.Convert(value, this)) {
 877     LOG(ERROR) << "Unable to parse: Invalid account metadata feed!";
 878     return false;
 879   }
 880   return true;
 881 }
 882
 883 }  // namespace google_apis