caps/nsIScriptSecurityManager.idl

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "nsISupports.idl"
   7 #include "nsIPrincipal.idl"
   8 interface nsIURI;
   9 interface nsIChannel;
  10 interface nsIClassInfo;
  11 interface nsIDocShell;
  12 interface nsIDomainPolicy;
  13 interface nsILoadContext;
  14
  15 %{ C++
  16 #include "jspubtd.h"
  17
  18 namespace mozilla {
  19 namespace dom {
  20 class DomainPolicyClone;
  21 }
  22 }
  23 %}
  24
  25 [ptr] native JSContextPtr(JSContext);
  26 [ptr] native JSObjectPtr(JSObject);
  27 [ptr] native DomainPolicyClonePtr(mozilla::dom::DomainPolicyClone);
  28
  29 [scriptable, builtinclass, uuid(51daad87-3a0c-44cc-b620-7356801c9022)]
  30 interface nsIScriptSecurityManager : nsISupports
  31 {
  32     /**
  33      * For each of these hooks returning NS_OK means 'let the action continue'.
  34      * Returning an error code means 'veto the action'. XPConnect will return
  35      * false to the js engine if the action is vetoed. The implementor of this
  36      * interface is responsible for setting a JS exception into the JSContext
  37      * if that is appropriate.
  38      */
  39     [noscript] void canCreateWrapper(in JSContextPtr aJSContext,
  40                                      in nsIIDRef aIID,
  41                                      in nsISupports aObj,
  42                                      in nsIClassInfo aClassInfo);
  43
  44     [noscript] void canCreateInstance(in JSContextPtr aJSContext,
  45                                       in nsCIDRef aCID);
  46
  47     [noscript] void canGetService(in JSContextPtr aJSContext,
  48                                   in nsCIDRef aCID);
  49
  50     /**
  51      * Check that the script currently running in context "cx" can load "uri".
  52      *
  53      * Will return error code NS_ERROR_DOM_BAD_URI if the load request
  54      * should be denied.
  55      *
  56      * @param cx the JSContext of the script causing the load
  57      * @param uri the URI that is being loaded
  58      */
  59     [noscript] void checkLoadURIFromScript(in JSContextPtr cx, in nsIURI uri);
  60
  61     /**
  62      * Default CheckLoadURI permissions
  63      */
  64     // Default permissions
  65     const unsigned long STANDARD = 0;
  66
  67     // Indicate that the load is a load of a new document that is not
  68     // user-triggered.  Here "user-triggered" could be broadly interpreted --
  69     // for example, scripted sets of window.location.href might be treated as
  70     // "user-triggered" in some circumstances.  A typical example of a load
  71     // that is not user-triggered is a <meta> refresh load.  If this flag is
  72     // set, the load will be denied if the originating principal's URI has the
  73     // nsIProtocolHandler::URI_FORBIDS_AUTOMATIC_DOCUMENT_REPLACEMENT flag set.
  74     const unsigned long LOAD_IS_AUTOMATIC_DOCUMENT_REPLACEMENT = 1 << 0;
  75
  76     // Allow the loading of chrome URLs by non-chrome URLs.  Use with great
  77     // care!  This will actually allow the loading of any URI which has the
  78     // nsIProtocolHandler::URI_IS_UI_RESOURCE protocol handler flag set.  Ths
  79     // probably means at least chrome: and resource:.
  80     const unsigned long ALLOW_CHROME = 1 << 1;
  81
  82     // Don't allow URLs which would inherit the caller's principal (such as
  83     // javascript: or data:) to load.  See
  84     // nsIProtocolHandler::URI_INHERITS_SECURITY_CONTEXT.
  85     const unsigned long DISALLOW_INHERIT_PRINCIPAL = 1 << 2;
  86
  87     // Alias for DISALLOW_INHERIT_PRINCIPAL for backwards compat with
  88     // JS-implemented extensions.
  89     const unsigned long DISALLOW_SCRIPT_OR_DATA = DISALLOW_INHERIT_PRINCIPAL;
  90
  91     // Don't allow javascript: URLs to load
  92     //   WARNING: Support for this value was added in Mozilla 1.7.8 and
  93     //   Firefox 1.0.4.  Use in prior versions WILL BE IGNORED.
  94     // When using this, make sure that you actually want DISALLOW_SCRIPT, not
  95     // DISALLOW_INHERIT_PRINCIPAL
  96     const unsigned long DISALLOW_SCRIPT = 1 << 3;
  97
  98     // Do not report errors if we just want to check if a principal can load
  99     // a URI to not unnecessarily spam the error console.
 100     const unsigned long DONT_REPORT_ERRORS = 1 << 4;
 101
 102     /**
 103      * Check that content with principal aPrincipal can load "uri".
 104      *
 105      * Will return error code NS_ERROR_DOM_BAD_URI if the load request
 106      * should be denied.
 107      *
 108      * @param aPrincipal the principal identifying the actor causing the load
 109      * @param uri the URI that is being loaded
 110      * @param flags the permission set, see above
 111      * @param innerWindowID the window ID for error reporting.  If this is 0
 112      *        (which happens automatically if it's not passed from JS), errors
 113      *        will only appear in the browser console, not window-associated
 114      *        consoles like the web console.
 115      */
 116     void checkLoadURIWithPrincipal(in nsIPrincipal aPrincipal,
 117                                    in nsIURI uri,
 118                                    in unsigned long flags,
 119                                    [optional] in unsigned long long innerWindowID);
 120
 121     /**
 122      * Similar to checkLoadURIWithPrincipal but there are two differences:
 123      *
 124      * 1) The URI is a string, not a URI object.
 125      * 2) This function assumes that the URI may still be subject to fixup (and
 126      * hence will check whether fixed-up versions of the URI are allowed to
 127      * load as well); if any of the versions of this URI is not allowed, this
 128      * function will return error code NS_ERROR_DOM_BAD_URI.
 129      */
 130     void checkLoadURIStrWithPrincipal(in nsIPrincipal aPrincipal,
 131                                       in AUTF8String uri,
 132                                       in unsigned long flags);
 133
 134     /**
 135      * Returns true if the URI is from a domain that is allow-listed through
 136      * prefs to be allowed to use file:// URIs.
 137      * @param aUri the URI to be tested
 138      */
 139     bool inFileURIAllowlist(in nsIURI aUri);
 140
 141     ///////////////// Principals ///////////////////////
 142
 143     /**
 144      * Return the all-powerful system principal.
 145      */
 146     nsIPrincipal getSystemPrincipal();
 147
 148     /**
 149      * Returns a principal that has the OriginAttributes of the load context.
 150      * @param loadContext to get the OriginAttributes from.
 151      */
 152     nsIPrincipal getLoadContextContentPrincipal(in nsIURI uri,
 153                                                  in nsILoadContext loadContext);
 154
 155     /**
 156      * Returns a principal that has the OriginAttributes of the docshell.
 157      * @param docShell to get the OriginAttributes from.
 158      */
 159     nsIPrincipal getDocShellContentPrincipal(in nsIURI uri,
 160                                               in nsIDocShell docShell);
 161
 162     /**
 163      * If this is a content principal, return a copy with different
 164      * origin attributes.
 165      */
 166     [implicit_jscontext]
 167     nsIPrincipal principalWithOA(in nsIPrincipal principal,
 168                                  in jsval originAttributes);
 169
 170     /**
 171      * Returns a principal whose origin is composed of |uri| and |originAttributes|.
 172      * See nsIPrincipal.idl for a description of origin attributes, and
 173      * ChromeUtils.webidl for a list of origin attributes and their defaults.
 174      */
 175     [implicit_jscontext]
 176     nsIPrincipal createContentPrincipal(in nsIURI uri, in jsval originAttributes);
 177
 178     /**
 179      * Returns a principal whose origin is the one we pass in.
 180      * See nsIPrincipal.idl for a description of origin attributes, and
 181      * ChromeUtils.webidl for a list of origin attributes and their defaults.
 182      */
 183     nsIPrincipal createContentPrincipalFromOrigin(in ACString origin);
 184
 185     /**
 186      * Takes a principal and returns a string representation of it or a nullptr if it can't be serialized.
 187      * Example output: `{"1": {"0": "https://mozilla.com", "2": "^privateBrowsingId=1"}}`
 188      */
 189     ACString principalToJSON(in nsIPrincipal principal);
 190
 191     /**
 192      * Takes a string of the following format:
 193      * `{"1": {"0": "https://mozilla.com", "2": "^privateBrowsingId=1"}}`
 194      * and turns it into a principal or a nullptr on error.
 195      */
 196     nsIPrincipal JSONToPrincipal(in ACString json);
 197
 198     /**
 199      * Returns a unique nonce principal with |originAttributes|.
 200      * See nsIPrincipal.idl for a description of origin attributes, and
 201      * ChromeUtils.webidl for a list of origin attributes and their defaults.
 202      */
 203     [implicit_jscontext]
 204     nsIPrincipal createNullPrincipal(in jsval originAttributes);
 205
 206     /**
 207      * Returns OK if aSourceURI and target have the same "origin"
 208      * (scheme, host, and port).
 209      * ReportError flag suppresses error reports for functions that
 210      * don't need reporting.
 211      * FromPrivateWindow indicates whether the error occurs in a private
 212      * window or not.
 213      */
 214     void checkSameOriginURI(in nsIURI aSourceURI,
 215                             in nsIURI aTargetURI,
 216                             in boolean reportError,
 217                             in boolean fromPrivateWindow);
 218
 219     /**
 220      * Get the principal for the given channel.  This will typically be the
 221      * channel owner if there is one, and the content principal for the
 222      * channel's URI otherwise.  aChannel must not be null.
 223      */
 224     nsIPrincipal getChannelResultPrincipal(in nsIChannel aChannel);
 225
 226     /**
 227      * Get the storage principal for the given channel.  This is basically the
 228      * same of getChannelResultPrincipal() execept for trackers, where we
 229      * return a principal with a different OriginAttributes.
 230      */
 231     nsIPrincipal getChannelResultStoragePrincipal(in nsIChannel aChannel);
 232
 233     /**
 234      * This method does getChannelResultPrincipal() +
 235      * getChannelResultStoragePrincipal().
 236      * This method is mainly done for Document::Reset(). There are no other
 237      * reasons to use this method.
 238      */
 239     void getChannelResultPrincipals(in nsIChannel aChannel,
 240                                     out nsIPrincipal aPrincipal,
 241                                     out nsIPrincipal aStoragePrincipal);
 242
 243     /**
 244      * Temporary API until bug 1220687 is fixed.
 245      *
 246      * Returns the same value as getChannelResultPrincipal, but ignoring
 247      * sandboxing.  Specifically, if sandboxing would have prevented the
 248      * channel's triggering principal from being returned by
 249      * getChannelResultPrincipal, the triggering principal will be returned
 250      * by this method.
 251      *
 252      * Note that this method only ignores sandboxing of the channel in
 253      * question, it does not ignore sandboxing of any channels further up a
 254      * document chain.  The triggering principal itself may still be the null
 255      * principal due to sandboxing further up a document chain.  In that regard
 256      * the ignoring of sandboxing is limited.
 257      */
 258     [noscript, nostdcall]
 259     nsIPrincipal getChannelResultPrincipalIfNotSandboxed(in nsIChannel aChannel);
 260
 261     /**
 262      * Get the content principal for the channel's URI.
 263      * aChannel must not be null.
 264      */
 265     nsIPrincipal getChannelURIPrincipal(in nsIChannel aChannel);
 266
 267     const unsigned long DEFAULT_USER_CONTEXT_ID = 0;
 268
 269     const unsigned long DEFAULT_PRIVATE_BROWSING_ID = 0;
 270
 271     /**
 272      * Per-domain controls to enable and disable script. This system is designed
 273      * to be used by at most one consumer, and enforces this with its semantics.
 274      *
 275      * Initially, domainPolicyActive is false. When activateDomainPolicy() is
 276      * invoked, domainPolicyActive becomes true, and subsequent calls to
 277      * activateDomainPolicy() will fail until deactivate() is invoked on the
 278      * nsIDomainPolicy returned from activateDomainPolicy(). At this point,
 279      * domainPolicyActive becomes false again, and a new consumer may acquire
 280      * control of the system by invoking activateDomainPolicy().
 281      */
 282     nsIDomainPolicy activateDomainPolicy();
 283     readonly attribute boolean domainPolicyActive;
 284
 285     /**
 286      * Only the parent process can directly access domain policies, child
 287      * processes only have a read-only mirror to the one in the parent.
 288      * For child processes the mirror is updated via messages
 289      * and ContentChild will hold the DomainPolicy by calling
 290      * ActivateDomainPolicyInternal directly. New consumer to this
 291      * function should not be addded.
 292      */
 293     [noscript] nsIDomainPolicy activateDomainPolicyInternal();
 294
 295     /**
 296      * This function is for internal use only. Every time a child process is spawned, we
 297      * must clone any active domain policies in the parent to the new child.
 298      */
 299     [noscript, notxpcom] void cloneDomainPolicy(in DomainPolicyClonePtr aClone);
 300
 301     /**
 302      * Query mechanism for the above policy.
 303      *
 304      * If domainPolicyEnabled is false, this simply returns the current value
 305      * of javascript.enabled. Otherwise, it returns the same value, but taking
 306      * the various blocklist/allowlist exceptions into account.
 307      */
 308     bool policyAllowsScript(in nsIURI aDomain);
 309 };
 310
 311 %{C++
 312 #define NS_SCRIPTSECURITYMANAGER_CONTRACTID "@mozilla.org/scriptsecuritymanager;1"
 313 %}