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| -rw-r--r-- | dom/base/nsIContentPolicy.idl | 575 |
1 files changed, 575 insertions, 0 deletions
diff --git a/dom/base/nsIContentPolicy.idl b/dom/base/nsIContentPolicy.idl new file mode 100644 index 0000000000..9c0755a9f1 --- /dev/null +++ b/dom/base/nsIContentPolicy.idl @@ -0,0 +1,575 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ft=cpp tw=78 sw=2 et ts=8 : */ +/* 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/. */ + +#include "nsISupports.idl" + +interface nsIURI; +interface nsILoadInfo; + +/** + * Interface for content policy mechanism. Implementations of this + * interface can be used to control loading of various types of out-of-line + * content, or processing of certain types of in-line content. + * + * WARNING: do not block the caller from shouldLoad or shouldProcess (e.g., + * by launching a dialog to prompt the user for something). + */ + +[scriptable, uuid(caad4f1f-d047-46ac-ae9d-dc598e4fb91b)] +interface nsIContentPolicy : nsISupports +{ + /** + * The type of nsIContentPolicy::TYPE_* + */ + cenum nsContentPolicyType : 8 { + /** + * Indicates a unset or bogus policy type. + */ + TYPE_INVALID = 0, + + /** + * Gecko/Firefox developers: Avoid using TYPE_OTHER. Especially for + * requests that are coming from webpages. Or requests in general which + * you expect that security checks will be done on. + * Always use a more specific type if one is available. And do not hesitate + * to add more types as appropriate. + * But if you are fairly sure that no one would care about your more specific + * type, then it's ok to use TYPE_OTHER. + * + * Extension developers: Whenever it is reasonable, use one of the existing + * content types. If none of the existing content types are right for + * something you are doing, file a bug in the Core/DOM component that + * includes a patch that adds your new content type to the end of the list of + * TYPE_* constants here. But, don't start using your new content type until + * your patch has been accepted, because it will be uncertain what exact + * value and name your new content type will have; in that interim period, + * use TYPE_OTHER. In your patch, document your new content type in the style + * of the existing ones. In the bug you file, provide a more detailed + * description of the new type of content you want Gecko to support, so that + * the existing implementations of nsIContentPolicy can be properly modified + * to deal with that new type of content. + * + * Implementations of nsIContentPolicy should treat this the same way they + * treat unknown types, because existing users of TYPE_OTHER may be converted + * to use new content types. + * + * Note that the TYPE_INTERNAL_* constants are never passed to content + * policy implementations. They are mapped to other TYPE_* constants, and + * are only intended for internal usage inside Gecko. + */ + TYPE_OTHER = 1, + + /** + * Indicates an executable script (such as JavaScript). + */ + TYPE_SCRIPT = 2, + + /** + * Indicates an image (e.g., IMG elements). + */ + TYPE_IMAGE = 3, + + /** + * Indicates a stylesheet (e.g., STYLE elements). + */ + TYPE_STYLESHEET = 4, + + /** + * Indicates a generic object (plugin-handled content typically falls under + * this category). + */ + TYPE_OBJECT = 5, + + /** + * Indicates a document at the top-level (i.e., in a browser). + */ + TYPE_DOCUMENT = 6, + + /** + * Indicates a document contained within another document (e.g., IFRAMEs, + * FRAMES, and OBJECTs). + */ + TYPE_SUBDOCUMENT = 7, + + /* + * XXX: nsContentPolicyType = 8 used to inicate a timed refresh request. + */ + + /* + * XXX: nsContentPolicyType = 9 used to inicate an XBL binding request. + */ + + /** + * Indicates a ping triggered by a click on <A PING="..."> element. + */ + TYPE_PING = 10, + + /** + * Indicates an XMLHttpRequest. Also used for document.load and for EventSource. + */ + TYPE_XMLHTTPREQUEST = 11, + + /** + * Indicates a request by a plugin. + */ + TYPE_OBJECT_SUBREQUEST = 12, + + /** + * Indicates a DTD loaded by an XML document. + */ + TYPE_DTD = 13, + + /** + * Indicates a font loaded via @font-face rule. + */ + TYPE_FONT = 14, + + /** + * Indicates a video or audio load. + */ + TYPE_MEDIA = 15, + + /** + * Indicates a WebSocket load. + */ + TYPE_WEBSOCKET = 16, + + /** + * Indicates a Content Security Policy report. + */ + TYPE_CSP_REPORT = 17, + + /** + * Indicates a style sheet transformation. + */ + TYPE_XSLT = 18, + + /** + * Indicates a beacon post. + */ + TYPE_BEACON = 19, + + /** + * Indicates a load initiated by the fetch() function from the Fetch + * specification. + */ + TYPE_FETCH = 20, + + /** + * Indicates a <img srcset> or <picture> request. + */ + TYPE_IMAGESET = 21, + + /** + * Indicates a web manifest. + */ + TYPE_WEB_MANIFEST = 22, + + /** + * Indicates an internal constant for scripts loaded through script + * elements. + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_SCRIPT = 23, + + /** + * Indicates an internal constant for scripts loaded through a dedicated + * worker. + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_WORKER = 24, + + /** + * Indicates an internal constant for scripts loaded through a shared + * worker. + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_SHARED_WORKER = 25, + + /** + * Indicates an internal constant for content loaded from embed elements. + * + * This will be mapped to TYPE_OBJECT. + */ + TYPE_INTERNAL_EMBED = 26, + + /** + * Indicates an internal constant for content loaded from object elements. + * + * This will be mapped to TYPE_OBJECT. + */ + TYPE_INTERNAL_OBJECT = 27, + + /** + * Indicates an internal constant for content loaded from frame elements. + * + * This will be mapped to TYPE_SUBDOCUMENT. + */ + TYPE_INTERNAL_FRAME = 28, + + /** + * Indicates an internal constant for content loaded from iframe elements. + * + * This will be mapped to TYPE_SUBDOCUMENT. + */ + TYPE_INTERNAL_IFRAME = 29, + + /** + * Indicates an internal constant for content loaded from audio elements. + * + * This will be mapped to TYPE_MEDIA. + */ + TYPE_INTERNAL_AUDIO = 30, + + /** + * Indicates an internal constant for content loaded from video elements. + * + * This will be mapped to TYPE_MEDIA. + */ + TYPE_INTERNAL_VIDEO = 31, + + /** + * Indicates an internal constant for content loaded from track elements. + * + * This will be mapped to TYPE_MEDIA. + */ + TYPE_INTERNAL_TRACK = 32, + + /** + * Indicates an internal constant for an XMLHttpRequest. + * + * This will be mapped to TYPE_XMLHTTPREQUEST. + */ + TYPE_INTERNAL_XMLHTTPREQUEST = 33, + + /** + * Indicates an internal constant for EventSource. + * + * This will be mapped to TYPE_XMLHTTPREQUEST. + */ + TYPE_INTERNAL_EVENTSOURCE = 34, + + /** + * Indicates an internal constant for scripts loaded through a service + * worker. + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_SERVICE_WORKER = 35, + + /** + * Indicates an internal constant for *preloaded* scripts + * loaded through script elements. + * + * This will be mapped to TYPE_SCRIPT before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_SCRIPT_PRELOAD = 36, + + /** + * Indicates an internal constant for normal images. + * + * This will be mapped to TYPE_IMAGE before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_IMAGE = 37, + + /** + * Indicates an internal constant for *preloaded* images. + * + * This will be mapped to TYPE_IMAGE before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_IMAGE_PRELOAD = 38, + + /** + * Indicates an internal constant for normal stylesheets. + * + * This will be mapped to TYPE_STYLESHEET before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_STYLESHEET = 39, + + /** + * Indicates an internal constant for *preloaded* stylesheets. + * + * This will be mapped to TYPE_STYLESHEET before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_STYLESHEET_PRELOAD = 40, + + /** + * Indicates an internal constant for favicon. + * + * This will be mapped to TYPE_IMAGE before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_IMAGE_FAVICON = 41, + + /** + * Indicates an importScripts() inside a worker script. + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_WORKER_IMPORT_SCRIPTS = 42, + + /** + * Indicates an save-as link download from the front-end code. + */ + TYPE_SAVEAS_DOWNLOAD = 43, + + /** + * Indicates a speculative connection. + */ + TYPE_SPECULATIVE = 44, + + /** + * Indicates an internal constant for ES6 module scripts + * loaded through script elements or an import statement. + * + * This will be mapped to TYPE_SCRIPT before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_MODULE = 45, + + /** + * Indicates an internal constant for *preloaded* ES6 module scripts + * loaded through script elements or an import statement. + * + * This will be mapped to TYPE_SCRIPT before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_MODULE_PRELOAD = 46, + + /** + * Indicates a DTD loaded by an XML document the URI of which could + * not be mapped to a known local DTD. + */ + TYPE_INTERNAL_DTD = 47, + + /** + * Indicates a TYPE_INTERNAL_DTD which will not be blocked no matter + * what principal is being loaded from. + */ + TYPE_INTERNAL_FORCE_ALLOWED_DTD = 48, + + /** + * Indicates an internal constant for scripts loaded through an + * audioWorklet. + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_AUDIOWORKLET = 49, + + /** + * Indicates an internal constant for scripts loaded through an + * paintWorklet. + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_PAINTWORKLET = 50, + + /** + * Same as TYPE_FONT but indicates this is a <link rel=preload as=font> + * preload initiated load. + */ + TYPE_INTERNAL_FONT_PRELOAD = 51, + + /** + * Indicates the load of a (Firefox-internal) script through ChromeUtils + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_CHROMEUTILS_COMPILED_SCRIPT = 52, + + /** + * Indicates the load of a script through FrameMessageManager + * + * This will be mapped to TYPE_SCRIPT before being passed to content policy + * implementations. + */ + TYPE_INTERNAL_FRAME_MESSAGEMANAGER_SCRIPT = 53, + + /** + * Indicates an internal constant for *preloaded* fetch + * loaded through link elements. + * + * This will be mapped to TYPE_FETCH before being passed + * to content policy implementations. + */ + TYPE_INTERNAL_FETCH_PRELOAD = 54, + + /* When adding new content types, please update + * NS_CP_ContentTypeName, nsCSPContext, CSP_ContentTypeToDirective, + * DoContentSecurityChecks, all nsIContentPolicy implementations, the + * static_assert in dom/cache/DBSchema.cpp, ChannelWrapper.webidl, + * ChannelWrapper.cpp, PermissionManager.cpp, + * IPCMessageUtilsSpecializations.h, and other things that are not + * listed here that are related to nsIContentPolicy. */ + }; + + ////////////////////////////////////////////////////////////////////// + + /** + * Returned from shouldLoad or shouldProcess if the load or process request + * is rejected based on details of the request. + */ + const short REJECT_REQUEST = -1; + + /** + * Returned from shouldLoad or shouldProcess if the load/process is rejected + * based solely on its type (of the above flags). + * + * NOTE that it is not meant to stop future requests for this type--only the + * current request. + */ + const short REJECT_TYPE = -2; + + /** + * Returned from shouldLoad or shouldProcess if the load/process is rejected + * based on the server it is hosted on or requested from (aContentLocation or + * aRequestOrigin), e.g., if you block an IMAGE because it is served from + * goatse.cx (even if you don't necessarily block other types from that + * server/domain). + * + * NOTE that it is not meant to stop future requests for this server--only the + * current request. + */ + const short REJECT_SERVER = -3; + + /** + * Returned from shouldLoad or shouldProcess if the load/process is rejected + * based on some other criteria. Mozilla callers will handle this like + * REJECT_REQUEST; third-party implementors may, for example, use this to + * direct their own callers to consult the extra parameter for additional + * details. + */ + const short REJECT_OTHER = -4; + + /** + * Returned from shouldLoad or shouldProcess if the load/process is forbiddden + * based on enterprise policy. + */ + const short REJECT_POLICY = -5; + + /** + * Returned from shouldLoad or shouldProcess if the load or process request + * is not rejected. + */ + const short ACCEPT = 1; + + /** + * Should the resource at this location be loaded? + * ShouldLoad will be called before loading the resource at aContentLocation + * to determine whether to start the load at all. + * + * @param aContentLocation the location of the content being checked; must + * not be null + * + * @param aLoadInfo the loadinfo of the channel being evaluated. + * + * @param aMimeTypeGuess OPTIONAL. a guess for the requested content's + * MIME type, based on information available to + * the request initiator (e.g., an OBJECT's type + * attribute); does not reliably reflect the + * actual MIME type of the requested content + * + * @return ACCEPT or REJECT_* + * + * @note shouldLoad can be called while the DOM and layout of the document + * involved is in an inconsistent state. This means that implementors of + * this method MUST NOT do any of the following: + * 1) Modify the DOM in any way (e.g. setting attributes is a no-no). + * 2) Query any DOM properties that depend on layout (e.g. offset* + * properties). + * 3) Query any DOM properties that depend on style (e.g. computed style). + * 4) Query any DOM properties that depend on the current state of the DOM + * outside the "context" node (e.g. lengths of node lists). + * 5) [JavaScript implementations only] Access properties of any sort on any + * object without using XPCNativeWrapper (either explicitly or + * implicitly). Due to various DOM0 things, this leads to item 4. + * If you do any of these things in your shouldLoad implementation, expect + * unpredictable behavior, possibly including crashes, content not showing + * up, content showing up doubled, etc. If you need to do any of the things + * above, do them off timeout or event. + */ + short shouldLoad(in nsIURI aContentLocation, + in nsILoadInfo aLoadInfo, + in ACString aMimeTypeGuess); + + /** + * Should the resource be processed? + * ShouldProcess will be called once all the information passed to it has + * been determined about the resource, typically after part of the resource + * has been loaded. + * + * @param aContentLocation OPTIONAL; the location of the resource being + * requested: MAY be, e.g., a post-redirection URI + * for the resource. + * + * @param aLoadInfo the loadinfo of the channel being evaluated. + * + * @param aMimeType the MIME type of the requested resource (e.g., + * image/png), as reported by the networking library, + * if available (may be empty if inappropriate for + * the type). + * + * @return ACCEPT or REJECT_* + * + * @note shouldProcess can be called while the DOM and layout of the document + * involved is in an inconsistent state. See the note on shouldLoad to see + * what this means for implementors of this method. + */ + short shouldProcess(in nsIURI aContentLocation, + in nsILoadInfo aLoadInfo, + in ACString aMimeType); +}; + +typedef nsIContentPolicy_nsContentPolicyType nsContentPolicyType; + +%{C++ +enum class ExtContentPolicyType : uint8_t { + /** + * The type of ExtContentPolicy::TYPE_* + */ + TYPE_INVALID = nsIContentPolicy::TYPE_INVALID, + TYPE_OTHER = nsIContentPolicy::TYPE_OTHER, + TYPE_SCRIPT = nsIContentPolicy::TYPE_SCRIPT, + TYPE_IMAGE = nsIContentPolicy::TYPE_IMAGE, + TYPE_STYLESHEET = nsIContentPolicy::TYPE_STYLESHEET, + TYPE_OBJECT = nsIContentPolicy::TYPE_OBJECT, + TYPE_DOCUMENT = nsIContentPolicy::TYPE_DOCUMENT, + TYPE_SUBDOCUMENT = nsIContentPolicy::TYPE_SUBDOCUMENT, + TYPE_PING = nsIContentPolicy::TYPE_PING, + TYPE_XMLHTTPREQUEST = nsIContentPolicy::TYPE_XMLHTTPREQUEST, + TYPE_OBJECT_SUBREQUEST = nsIContentPolicy::TYPE_OBJECT_SUBREQUEST, + TYPE_DTD = nsIContentPolicy::TYPE_DTD, + TYPE_FONT = nsIContentPolicy::TYPE_FONT, + TYPE_MEDIA = nsIContentPolicy::TYPE_MEDIA, + TYPE_WEBSOCKET = nsIContentPolicy::TYPE_WEBSOCKET, + TYPE_CSP_REPORT = nsIContentPolicy::TYPE_CSP_REPORT, + TYPE_XSLT = nsIContentPolicy::TYPE_XSLT, + TYPE_BEACON = nsIContentPolicy::TYPE_BEACON, + TYPE_FETCH = nsIContentPolicy::TYPE_FETCH, + TYPE_IMAGESET = nsIContentPolicy::TYPE_IMAGESET, + TYPE_WEB_MANIFEST = nsIContentPolicy::TYPE_WEB_MANIFEST, + TYPE_SAVEAS_DOWNLOAD = nsIContentPolicy::TYPE_SAVEAS_DOWNLOAD, + TYPE_SPECULATIVE = nsIContentPolicy::TYPE_SPECULATIVE, +}; + +typedef ExtContentPolicyType ExtContentPolicy; +%} |