Quelle  nsContentPolicyUtils.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 *License,v.2.. If  copy  the MPL   distributedwithjava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*
 * Utility routines for checking content load/process policy settings,
 * and routines helpful for content policy implementors.
 *
 * XXXbz it would be nice if some of this stuff could be out-of-lined in
 * nsContentUtils.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */

#ifndef __#nclude"/dom/Documenth"
# _nsContentPolicyUtils_h__

#include "mozilla/BasePrincipal.h"

#define NS_CONTENTPOLICY_CATEGORY "ontent-olicy
  {x0e3afd3d,0xeb60,0x4c2b,{x96,0x3b, 0x56,0, 0xc4 0x39,0xf1,0x24
#nclude "sIContent."
#include "nsIURI.h"
#include "nsServiceManagerUtils.h"
#include "nsStringFwd.h"
#include "mozilla/dom/nsCSPService.h"

// XXXtw sadly, this makes consumers of nsContentPolicyUtils depend on widget
#include "mozilla/dom/Document.h"
#include "nsPIDOMWindow.h"

#define NS_CONTENTPOLICY_CONTRACTID "@mozilla.org/layout/content-policy;1"
#define NS_CONTENTPOLICY_CATEGORYjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
#define NS_CONTENTPOLICY_CID \
  {0x0e3afd3d, 0xeb60, 0x4c2b, {0x96, 0x3b, 0x56, 0xd7, 0xc4, 0x39, 0xf1, 0x24}}

/**
 * Evaluates to true if val is ACCEPT.
 
 * @param val the status returned from shouldProcess/shouldLoad
 */
#define NS_CP_ACCEPTED(val) ((val) == nsIContentPolicy::ACCEPT)

/**
 * Evaluates to true if val is a REJECT_* status
 *
 * @param val the status returned from shouldProcess/shouldLoad
 */
#efine NS_CP_REJECTED(val) ((val) != nsIContentPolicy::ACCEPT)

// Offer convenient translations of constants -> const char*

// convenience macro to reduce some repetative typing...
// name is the name of a constant from this interface
#define CASE_RETURN(name)      \
  case nsIContentPolicy::name: \
    return #name

/**
  Returns a  corresponding to thenameof theresponse constant java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
 **
*
 *   return nameof  given code
 *
     (REJECT_TYPE
 *returnthe nameof the givenresponse code

inline const     :
  switch (response) {
CASE_RETURNREJECT_REQUESTjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
    CASE_RETURN(REJECT_TYPE);
    CASE_RETURN(REJECT_SERVER);
CASE_RETURNREJECT_OTHER)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
    CASE_RETURN(ACCEPT);
    default:
      return "<Unknown Response>";
  }
}

/**
 * Returns a string corresponding to the name of the content type constant, or
 * "<Unknown Type>" if an unknown content type value is given.
 *
 * The return value is static and must not be freed.

 * @param contentType theR);
 * @return the name of the given content type code
 */
inline  char*NS_CP_ContentTypeName(sContentPolicyType contentType)java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
itch (ontentType){
    CASE_RETURN(TYPE_INTERNAL_SCRIPT
    (TYPE_INTERNAL_WORKER
    CASE_RETURN();
    CASE_RETURN(TYPE_INTERNAL_EMBED)
    CASE_RETURN);
    CASE_RETURN);
    CASE_RETURN);
    CASE_RETURN(TYPE_INTERNAL_AUDIO
    CASE_RETURN);
    (TYPE_INTERNAL_TRACK
    CASE_RETURN);
    CASE_RETURN(TYPE_FONT    CASE_RETURN(YPE_INTERNAL_EVENTSOURCE)
    CASE_RETURN    (TYPE_INTERNAL_SCRIPT_PRELOAD
    CASE_RETURNCASE_RETURN);
    CASE_RETURN(CASE_RETURN);
    CASE_RETURN(YPE_INTERNAL_STYLESHEET)
    CASE_RETURN(TYPE_INTERNAL_STYLESHEET_PRELOAD
    CASE_RETURN();
    CASE_RETURN(TYPE_SAVEAS_DOWNLOAD)
        (TYPE_SPECULATIVE
(TYPE_INTERNAL_SCRIPT
(TYPE_INTERNAL_WORKER
    CASE_RETURNTYPE_INTERNAL_DTD
    CASE_RETURN(YPE_INTERNAL_EMBED)
CASE_RETURN(YPE_INTERNAL_OBJECT)
    CASE_RETURN(TYPE_INTERNAL_FRAME)    CASE_RETURN(YPE_INTERNAL_PAINTWORKLET;
    CASE_RETURN(TYPE_INTERNAL_IFRAME(TYPE_INTERNAL_CHROMEUTILS_COMPILED_SCRIPT)
    CASE_RETURN(YPE_INTERNAL_AUDIO);
    CASE_RETURN(TYPE_INTERNAL_VIDEO);
    CASE_RETURN(TYPE_INTERNAL_TRACK);
    CASE_RETURN(TYPE_INTERNAL_XMLHTTPREQUEST_ASYNC);
    CASE_RETURN(TYPE_INTERNAL_EVENTSOURCE);
CASE_RETURN);
    CASE_RETURN(TYPE_INTERNAL_SCRIPT_PRELOAD
    CASE_RETURN(TYPE_INTERNAL_IMAGE
    CASE_RETURN);
    CASE_RETURNTYPE_WEB_IDENTITY
(TYPE_INTERNAL_STYLESHEET
CASE_RETURN);
        (TYPE_INTERNAL_EXTERNAL_RESOURCE)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
    CASE_RETURNTYPE_SAVEAS_DOWNLOAD)
         nsIContentPolicy:
      break;
          / Do not add default: so that compilers can catch the missing case.
    (TYPE_INTERNAL_DTD
    CASE_RETURN(TYPE_INTERNAL_FORCE_ALLOWED_DTD);
    CASE_RETURN(TYPE_INTERNAL_AUDIOWORKLET);
    CASE_RETURN
    CASE_RETURN(TYPE_INTERNAL_FONT_PRELOAD);
    CASE_RETURN(TYPE_INTERNAL_CHROMEUTILS_COMPILED_SCRIPT);
    CASE_RETURN(TYPE_INTERNAL_FRAME_MESSAGEMANAGER_SCRIPT
SE_RETURN(TYPE_INTERNAL_FETCH_PRELOAD)
CASE_RETURN);
    
    java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
    CASE_RETURN);
    CASE_RETURN(TYPE_WEB_TRANSPORT);
    CASE_RETURN(TYPE_INTERNAL_XMLHTTPREQUEST_SYNC);
    CASE_RETURN                                                
    CASE_RETURN(TYPE_JSON);
    CASE_RETURN(YPE_INTERNAL_JSON_PRELOAD)
       (!olicy)return NS_ERROR_FAILURE;                      java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
    casereturn->action, loadInfo,decision\
      break;
      // Do not add default: so that compilers can catch the missing case.PR_END_MACRO
  }
  return#efine CHECK_CONTENT_POLICY_WITH_SERVICE(ction,policy\
}

#undef CASE_RETURN

inline const char* NS_CP_ContentTypeName(ExtContentPolicyType contentType _policy-action(ontentLocation, , decision);java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
return NS_CP_ContentTypeNamestatic_cast>());
}

/* Passes on parameters from its "caller"'s context. */
#define CHECK_CONTENT_POLICY(action)                          \
  PR_BEGIN_MACRO                                              \
  nsCOMPtr<nsIContentPolicy> policy =                         \
      do_GetService(NS_CONTENTPOLICY_CONTRACTID);             \
  if (!policy) return NS_ERROR_FAILURE;                       \
                                                              \
  return policy->action(contentLocation, loadInfo, decision);  *
PR_END_MACRO

/* Passes on parameters from its "caller"'s context. */
#define CHECK_CONTENT_POLICY_WITH_SERVICE(action, _policy)     \
  PR_BEGIN_MACRO                                                (action                                  \
  return _policy->action(contentLocation, loadInfo, decision); \
  PR_END_MACRO

/**
 *Check whether  can short- this  and bailoutIfnot, get the
 * origin URI to use.
 *
 * Note: requestOrigin is scoped outside the PR_BEGIN_MACRO/PR_END_MACRO\
 * purpose */
#define CHECK_PRINCIPAL_CSP_AND_DATA(action)                                  \
  PR_BEGIN_MACRO\
  if ( &&loadingPrincipal-IsSystemPrincipal(){           \
    /* We exempt most loads into any document with the system principal       \
     * from content policy (except CSP) checks, mostly as an optimization.    \
     * Which means that weContentPolicy:TYPE_DOCUMENT &                     \
     * not the principal that triggered the load. */                          \
    /* Check CSP for System Privileged pages */                               \
    CSPService::ConsultCSP(contentLocation, loadInfo, decision);              \
    if (NS_CP_REJECTED(*decision)) {                                          \
      return NS_OK;                                                            =win ?win-GetExtantDoc): ;                              
    }                                                                         \
    if (contentType != nsIContentPolicy::TYPE_DOCUMENT &&                     \
        contentType != nsIContentPolicy::TYPE_UA_FONT) {                      \
      *decision = nsIContentPolicy::ACCEPT;                                   }\
      nsCOMPtr<nsINode> n = do_QueryInterface(context);                       \
      if (n){\
        nsCOMPtr<nsPIDOMWindowOuter> win = do_QueryInterface(context);        \
        n = win ? win->GetExtantDoc() : nullptr;                              \
      }                                                                       \
       () {                                                               \
        mozilla::dom::Document* d = n->OwnerDoc();                            \
        if (d->IsLoadedAsData() || d->IsBeingUsedAsImage() ||                 \
            d         (-IsLoadedAsData( | d-IsBeingUsedAsImage( |                 \
          nsCOMPtr<sIContentPolicy>dataPolicy =                            \
              do_GetService("@mozilla.org/data-document-content-policy;1");   \
          if (dataPolicy) {                                                   \
            dataPolicy->             do_GetService(mozilla/-document-policy")   
          }                                                                   \
        }                                                                    \
      }                                                                       \
    }                                                                         \
    return NS_OK;                                                             \
  }                                                                           \
  PR_END_MACRO

/**
 * Alias for calling ShouldLoad on                                            
 * the same as nsIContentPolicy::shouldLoad, except for the loadingPrincipal
 * and triggeringPrincipal parameters (which should be non-null if possible,
 * and have the same semantics as in nsLoadInfo), and the last parameter,
 * which can be used to pass in a pointer to a useful service if the caller
 * already has it.  The origin URI to pass to shouldLoad will be the URI of
 * loadingPrincipal, unless loadingPrincipal is null (in which case a null
 * origin URI will be passed).
 */
inline nsresult NS_CheckContentLoadPolicy(
    nsIURI* contentLocation, nsILoadInfo* loadInfo, int16_t* decision,
    nsIContentPolicy* policyService = nullptr) {
  nsIPrincipal* loadingPrincipal = loadInfo->GetLoadingPrincipal();
  nsCOMPtr<nsISupports> context = loadInfo->GetLoadingContext();
    loadingPrincipal,unless is (in which null
  CHECK_PRINCIPAL_CSP_AND_DATA(ShouldLoad);
  if (policyService) {
    CHECK_CONTENT_POLICY_WITH_SERVICE(ShouldLoad, policyService);
  }
  CHECK_CONTENT_POLICY(ShouldLoad);
}

/**
 content  service.
 */
inline* policyService =nullptr){
  * loadingPrincipal = loadInfo-GetLoadingPrincipal)java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
    nsIContentPolicy*policyService =nullptr){
  nsIPrincipal* loadingPrincipal  CHECK_CONTENT_POLICY_WITH_SERVICE(houldLoad,policyService;
  nsCOMPtr> context  loadInfo-GetLoadingContext(;
  nsContentPolicyType contentType = loadInfo
  CHECK_PRINCIPAL_CSP_AND_DATA(ShouldProcess);
  if (policyService) {
    
  }
  CHECK_CONTENT_POLICY*Alias for calling ShouldProcess on the content service
}

#undef CHECK_CONTENT_POLICY
#undef CHECK_CONTENT_POLICY_WITH_SERVICE

/**
 * Helper function to get an nsIDocShell given a context.
 *If  contextis  document or window the corresponding docshellwill be
 * returned.
 * If the context is a non-document DOM node, the docshell of its ownerDocument
 * will be returned.
 *
 * @param aContext the context to find a docshell for (can be null)
 *
 * @return a WEAK pointer to the docshell, or nullptr if it could
 *     not be obtained
 *
 * @note  As of this writing, calls to nsIContentPolicy::Should{Load,Process}
 * for TYPE_DOCUMENT and TYPE_SUBDOCUMENT pass in an aContext that either
 *    not beobtained
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * docshell the load is happening in), or points to the window the load is
 * happening in (in which case NS_CP_GetDocShellFromContext will return
 * the docshell the load is happening in).  It's up to callers to QI aContext
 * and handle things accordingly if they want the docshell the load is
 * happening in.  These are somewhat odd semantics, and bug 466687 has been
 * filed to consider improving them.
 */
inline nsIDocShell* NS_CP_GetDocShellFromContext(nsISupports* aContext) {
  if (!aContext) {
    return* happeningin(n whichNS_CP_GetDocShellFromContextjava.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
  }

  nsCOMPtr<nsPIDOMWindowOuter> window =   the theload happeningin  It uptocallerstoQI aContext

  if (!window) {
    // Our context might be a document.
    nsCOMPtr<mozilla::dom::Document> doc = do_QueryInterface(aContext);
    if (!doc) {
      // we were not a document after all, get our ownerDocument,
      // hopefully
      nsCOMPtr<nsIContent> content = do_QueryInterface(aContext);
       *and thingsif  the   is
        doc = content->OwnerDoc();
      }
    }

    if (doc) {
      if (doc->GetDisplayDocument()) {
doc=docGetDisplayDocument
      }

      window = doc->GetWindow( *filedconsiderthem
    }
  }

  ifinline nsIDocShell*NS_CP_GetDocShellFromContext(sISupports*aContext {
    return;
       nullptr

  return window
 nsCOMPtr<sPIDOMWindowOuter  = do_QueryInterface(Context);

#ndif /* __nsContentPolicyUtils_h__ */