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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  *
     25  */
     26 #include "config.h"
     27 #include "SchemeRegistry.h"
     28 
     29 namespace WebCore {
     30 
     31 static URLSchemesMap& localURLSchemes()
     32 {
     33     DEFINE_STATIC_LOCAL(URLSchemesMap, localSchemes, ());
     34 
     35     if (localSchemes.isEmpty()) {
     36         localSchemes.add("file");
     37 #if PLATFORM(MAC)
     38         localSchemes.add("applewebdata");
     39 #endif
     40 #if PLATFORM(QT)
     41         localSchemes.add("qrc");
     42 #endif
     43     }
     44 
     45     return localSchemes;
     46 }
     47 
     48 static URLSchemesMap& displayIsolatedURLSchemes()
     49 {
     50     DEFINE_STATIC_LOCAL(URLSchemesMap, displayIsolatedSchemes, ());
     51     return displayIsolatedSchemes;
     52 }
     53 
     54 static URLSchemesMap& secureSchemes()
     55 {
     56     DEFINE_STATIC_LOCAL(URLSchemesMap, secureSchemes, ());
     57 
     58     if (secureSchemes.isEmpty()) {
     59         secureSchemes.add("https");
     60         secureSchemes.add("about");
     61         secureSchemes.add("data");
     62     }
     63 
     64     return secureSchemes;
     65 }
     66 
     67 static URLSchemesMap& schemesWithUniqueOrigins()
     68 {
     69     DEFINE_STATIC_LOCAL(URLSchemesMap, schemesWithUniqueOrigins, ());
     70 
     71     // This is a willful violation of HTML5.
     72     // See https://bugs.webkit.org/show_bug.cgi?id=11885
     73     if (schemesWithUniqueOrigins.isEmpty())
     74         schemesWithUniqueOrigins.add("data");
     75 
     76     return schemesWithUniqueOrigins;
     77 }
     78 
     79 static URLSchemesMap& emptyDocumentSchemes()
     80 {
     81     DEFINE_STATIC_LOCAL(URLSchemesMap, emptyDocumentSchemes, ());
     82 
     83     if (emptyDocumentSchemes.isEmpty())
     84         emptyDocumentSchemes.add("about");
     85 
     86     return emptyDocumentSchemes;
     87 }
     88 
     89 static URLSchemesMap& canDisplayOnlyIfCanRequestSchemes()
     90 {
     91     DEFINE_STATIC_LOCAL(URLSchemesMap, canDisplayOnlyIfCanRequestSchemes, ());
     92 
     93 #if ENABLE(BLOB) || ENABLE(FILE_SYSTEM)
     94     if (canDisplayOnlyIfCanRequestSchemes.isEmpty()) {
     95 #if ENABLE(BLOB)
     96         canDisplayOnlyIfCanRequestSchemes.add("blob");
     97 #endif
     98 #if ENABLE(FILE_SYSTEM)
     99         canDisplayOnlyIfCanRequestSchemes.add("filesystem");
    100 #endif
    101     }
    102 #endif // ENABLE(BLOB) || ENABLE(FILE_SYSTEM)
    103 
    104     return canDisplayOnlyIfCanRequestSchemes;
    105 }
    106 
    107 void SchemeRegistry::registerURLSchemeAsLocal(const String& scheme)
    108 {
    109     localURLSchemes().add(scheme);
    110 }
    111 
    112 void SchemeRegistry::removeURLSchemeRegisteredAsLocal(const String& scheme)
    113 {
    114     if (scheme == "file")
    115         return;
    116 #if PLATFORM(MAC)
    117     if (scheme == "applewebdata")
    118         return;
    119 #endif
    120     localURLSchemes().remove(scheme);
    121 }
    122 
    123 const URLSchemesMap& SchemeRegistry::localSchemes()
    124 {
    125     return localURLSchemes();
    126 }
    127 
    128 bool SchemeRegistry::shouldTreatURLSchemeAsLocal(const String& scheme)
    129 {
    130     if (scheme.isEmpty())
    131         return false;
    132     return localURLSchemes().contains(scheme);
    133 }
    134 
    135 void SchemeRegistry::registerURLSchemeAsNoAccess(const String& scheme)
    136 {
    137     schemesWithUniqueOrigins().add(scheme);
    138 }
    139 
    140 bool SchemeRegistry::shouldTreatURLSchemeAsNoAccess(const String& scheme)
    141 {
    142     if (scheme.isEmpty())
    143         return false;
    144     return schemesWithUniqueOrigins().contains(scheme);
    145 }
    146 
    147 void SchemeRegistry::registerURLSchemeAsDisplayIsolated(const String& scheme)
    148 {
    149     displayIsolatedURLSchemes().add(scheme);
    150 }
    151 
    152 bool SchemeRegistry::shouldTreatURLSchemeAsDisplayIsolated(const String& scheme)
    153 {
    154     if (scheme.isEmpty())
    155         return false;
    156     return displayIsolatedURLSchemes().contains(scheme);
    157 }
    158 
    159 void SchemeRegistry::registerURLSchemeAsSecure(const String& scheme)
    160 {
    161     secureSchemes().add(scheme);
    162 }
    163 
    164 bool SchemeRegistry::shouldTreatURLSchemeAsSecure(const String& scheme)
    165 {
    166     if (scheme.isEmpty())
    167         return false;
    168     return secureSchemes().contains(scheme);
    169 }
    170 
    171 void SchemeRegistry::registerURLSchemeAsEmptyDocument(const String& scheme)
    172 {
    173     emptyDocumentSchemes().add(scheme);
    174 }
    175 
    176 bool SchemeRegistry::shouldLoadURLSchemeAsEmptyDocument(const String& scheme)
    177 {
    178     if (scheme.isEmpty())
    179         return false;
    180     return emptyDocumentSchemes().contains(scheme);
    181 }
    182 
    183 bool SchemeRegistry::canDisplayOnlyIfCanRequest(const String& scheme)
    184 {
    185     if (scheme.isEmpty())
    186         return false;
    187     return canDisplayOnlyIfCanRequestSchemes().contains(scheme);
    188 }
    189 
    190 void SchemeRegistry::registerAsCanDisplayOnlyIfCanRequest(const String& scheme)
    191 {
    192     canDisplayOnlyIfCanRequestSchemes().add(scheme);
    193 }
    194 
    195 } // namespace WebCore
    196