DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (4a108e94d3e2)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsPrincipal_h__
#define nsPrincipal_h__

#include "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "nsJSPrincipals.h"
#include "nsTArray.h"
#include "nsAutoPtr.h"
#include "nsIProtocolHandler.h"
#include "nsNetUtil.h"
#include "nsScriptSecurityManager.h"

class nsIObjectInputStream;
class nsIObjectOutputStream;

class nsBasePrincipal : public nsJSPrincipals
{
public:
  nsBasePrincipal();

protected:
  virtual ~nsBasePrincipal();

public:
  NS_IMETHOD_(MozExternalRefCountType) AddRef(void);
  NS_IMETHOD_(MozExternalRefCountType) Release(void);
  NS_IMETHOD GetCsp(nsIContentSecurityPolicy** aCsp);
  NS_IMETHOD SetCsp(nsIContentSecurityPolicy* aCsp);
public:

  static const char sInvalid[];

protected:

#ifdef DEBUG
  virtual void dumpImpl() = 0;
#endif

  nsCOMPtr<nsIContentSecurityPolicy> mCSP;
};

class nsPrincipal final : public nsBasePrincipal
{
public:
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSISERIALIZABLE
  NS_IMETHOD Equals(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD EqualsConsideringDomain(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD GetHashValue(uint32_t* aHashValue) override;
  NS_IMETHOD GetURI(nsIURI** aURI) override;
  NS_IMETHOD GetDomain(nsIURI** aDomain) override;
  NS_IMETHOD SetDomain(nsIURI* aDomain) override;
  NS_IMETHOD GetOrigin(char** aOrigin) override;
  NS_IMETHOD Subsumes(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD SubsumesConsideringDomain(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD CheckMayLoad(nsIURI* uri, bool report, bool allowIfInheritsPrincipal) override;
  NS_IMETHOD GetJarPrefix(nsACString& aJarPrefix) override;
  NS_IMETHOD GetAppStatus(uint16_t* aAppStatus) override;
  NS_IMETHOD GetAppId(uint32_t* aAppStatus) override;
  NS_IMETHOD GetIsInBrowserElement(bool* aIsInBrowserElement) override;
  NS_IMETHOD GetUnknownAppId(bool* aUnknownAppId) override;
  NS_IMETHOD GetIsNullPrincipal(bool* aIsNullPrincipal) override;
  NS_IMETHOD GetBaseDomain(nsACString& aBaseDomain) override;
#ifdef DEBUG
  virtual void dumpImpl() override;
#endif

  nsPrincipal();

  // Init() must be called before the principal is in a usable state.
  nsresult Init(nsIURI* aCodebase,
                uint32_t aAppId,
                bool aInMozBrowser);

  virtual void GetScriptLocation(nsACString& aStr) override;
  void SetURI(nsIURI* aURI);

  static bool IsPrincipalInherited(nsIURI* aURI) {
    // return true if the loadee URI has
    // the URI_INHERITS_SECURITY_CONTEXT flag set.
    bool doesInheritSecurityContext;
    nsresult rv =
    NS_URIChainHasFlags(aURI,
                        nsIProtocolHandler::URI_INHERITS_SECURITY_CONTEXT,
                        &doesInheritSecurityContext);

    if (NS_SUCCEEDED(rv) && doesInheritSecurityContext) {
      return true;
    }

    return false;
  }


  /**
   * Computes the puny-encoded origin of aURI.
   */
  static nsresult GetOriginForURI(nsIURI* aURI, char **aOrigin);

  nsCOMPtr<nsIURI> mDomain;
  nsCOMPtr<nsIURI> mCodebase;
  uint32_t mAppId;
  bool mInMozBrowser;
  // If mCodebaseImmutable is true, mCodebase is non-null and immutable
  bool mCodebaseImmutable;
  bool mDomainImmutable;
  bool mInitialized;

protected:
  virtual ~nsPrincipal();

  /**
   * Returns the app status of the principal based on mAppId and mInMozBrowser.
   */
  uint16_t GetAppStatus();
};

class nsExpandedPrincipal : public nsIExpandedPrincipal, public nsBasePrincipal
{
public:
  explicit nsExpandedPrincipal(nsTArray< nsCOMPtr<nsIPrincipal> > &aWhiteList);

protected:
  virtual ~nsExpandedPrincipal();

public:
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIEXPANDEDPRINCIPAL
  NS_DECL_NSISERIALIZABLE
  NS_IMETHOD Equals(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD EqualsConsideringDomain(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD GetHashValue(uint32_t* aHashValue) override;
  NS_IMETHOD GetURI(nsIURI** aURI) override;
  NS_IMETHOD GetDomain(nsIURI** aDomain) override;
  NS_IMETHOD SetDomain(nsIURI* aDomain) override;
  NS_IMETHOD GetOrigin(char** aOrigin) override;
  NS_IMETHOD Subsumes(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD SubsumesConsideringDomain(nsIPrincipal* other, bool* _retval) override;
  NS_IMETHOD CheckMayLoad(nsIURI* uri, bool report, bool allowIfInheritsPrincipal) override;
  NS_IMETHOD GetJarPrefix(nsACString& aJarPrefix) override;
  NS_IMETHOD GetAppStatus(uint16_t* aAppStatus) override;
  NS_IMETHOD GetAppId(uint32_t* aAppStatus) override;
  NS_IMETHOD GetIsInBrowserElement(bool* aIsInBrowserElement) override;
  NS_IMETHOD GetUnknownAppId(bool* aUnknownAppId) override;
  NS_IMETHOD GetIsNullPrincipal(bool* aIsNullPrincipal) override;
  NS_IMETHOD GetBaseDomain(nsACString& aBaseDomain) override;
#ifdef DEBUG
  virtual void dumpImpl() override;
#endif
  
  virtual void GetScriptLocation(nsACString &aStr) override;

private:
  nsTArray< nsCOMPtr<nsIPrincipal> > mPrincipals;
};

#define NS_PRINCIPAL_CONTRACTID "@mozilla.org/principal;1"
#define NS_PRINCIPAL_CID \
  { 0x09b7e598, 0x490d, 0x423f, \
    { 0xa8, 0xa6, 0x2e, 0x6c, 0x4e, 0xc8, 0x77, 0x50 }}

#define NS_EXPANDEDPRINCIPAL_CONTRACTID "@mozilla.org/expandedprincipal;1"
#define NS_EXPANDEDPRINCIPAL_CID \
  { 0xb33a3807, 0xb76c, 0x44e5, \
    { 0xb9, 0x9d, 0x95, 0x7e, 0xe9, 0xba, 0x6e, 0x39 }}

#endif // nsPrincipal_h__