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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "nsIWebProgressListener2.idl"
+
+interface nsIArray;
+interface nsIURI;
+interface nsICancelable;
+interface nsIMIMEInfo;
+interface nsIFile;
+interface nsIReferrerInfo;
+interface nsIHttpChannel;
+webidl BrowsingContext;
+
+[scriptable, uuid(37ec75d3-97ad-4da8-afaa-eabe5b4afd73)]
+interface nsITransfer : nsIWebProgressListener2 {
+
+ const unsigned long DOWNLOAD_ACCEPTABLE = 0;
+ const unsigned long DOWNLOAD_FORBIDDEN = 1;
+ const unsigned long DOWNLOAD_POTENTIALLY_UNSAFE = 2;
+
+ /**
+ * Initializes the transfer with certain properties. This function must
+ * be called prior to accessing any properties on this interface.
+ *
+ * @param aSource The source URI of the transfer. Must not be null.
+ *
+ * @param aSourceOriginalURI The original URI of the transfer in case
+ * aSource is a blob URL. Can be null.
+ *
+ * @param aTarget The target URI of the transfer. Must not be null.
+ *
+ * @param aDisplayName The user-readable description of the transfer.
+ * Can be empty.
+ *
+ * @param aMIMEInfo The MIME info associated with the target,
+ * including MIME type and helper app when appropriate.
+ * This parameter is optional.
+ *
+ * @param startTime Time when the download started (ie, when the first
+ * response from the server was received)
+ * XXX presumably wbp and exthandler do this differently
+ *
+ * @param aTempFile The location of a temporary file; i.e. a file in which
+ * the received data will be stored, but which is not
+ * equal to the target file. (will be moved to the real
+ * target by the caller, when the download is finished)
+ * May be null.
+ *
+ * @param aCancelable An object that can be used to abort the download.
+ * Must not be null.
+ * Implementations are expected to hold a strong
+ * reference to this object until the download is
+ * finished, at which point they should release the
+ * reference.
+ *
+ * @param aIsPrivate Used to determine the privacy status of the new transfer.
+ * If true, indicates that the transfer was initiated from
+ * a source that desires privacy.
+ *
+ * @param aDownloadClassification Indicates wheter the download is unwanted,
+ * should be considered dangerous or insecure.
+ *
+ * @param aReferrerInfo The Referrer this download is started with
+ *
+ * @param aOpenDownloadsListOnStart true (default) - Open downloads panel.
+ * false - Only show an icon indicator.
+ * This parameter is optional.
+ */
+ void init(in nsIURI aSource,
+ in nsIURI aSourceOriginalURI,
+ in nsIURI aTarget,
+ in AString aDisplayName,
+ in nsIMIMEInfo aMIMEInfo,
+ in PRTime startTime,
+ in nsIFile aTempFile,
+ in nsICancelable aCancelable,
+ in boolean aIsPrivate,
+ in long aDownloadClassification,
+ in nsIReferrerInfo aReferrerInfo,
+ [optional] in boolean aOpenDownloadsListOnStart);
+
+ /**
+ * Same as init, but allows for passing the browsingContext
+ * which will allow for opening the download with the same
+ * userContextId and auth header.
+ *
+ * @param aBrowsingContext BrowsingContext of the initiating document.
+ *
+ * @param aHandleInternally Set to true if the download should be opened within
+ * the browser.
+ * @param aHttpChannel Channel of the initiating document.
+ */
+ void initWithBrowsingContext(in nsIURI aSource,
+ in nsIURI aTarget,
+ in AString aDisplayName,
+ in nsIMIMEInfo aMIMEInfo,
+ in PRTime startTime,
+ in nsIFile aTempFile,
+ in nsICancelable aCancelable,
+ in boolean aIsPrivate,
+ in long aDownloadClassification,
+ in nsIReferrerInfo aReferrerInfo,
+ in boolean aOpenDownloadsListOnStart,
+ in BrowsingContext aBrowsingContext,
+ in boolean aHandleInternally,
+ in nsIHttpChannel aHttpChannel);
+
+
+ /*
+ * Used to notify the transfer object of the hash of the downloaded file.
+ * Must be called on the main thread, only after the download has finished
+ * successfully.
+ * @param aHash The SHA-256 hash in raw bytes of the downloaded file.
+ */
+ void setSha256Hash(in ACString aHash);
+
+ /*
+ * Used to notify the transfer object of the signature of the downloaded
+ * file. Must be called on the main thread, only after the download has
+ * finished successfully.
+ * @param aSignatureInfo The Array of Array of Array of bytes
+ * certificates of the downloaded file.
+ */
+ void setSignatureInfo(in Array<Array<Array<uint8_t> > > aSignatureInfo);
+
+ /*
+ * Used to notify the transfer object of the redirects associated with the
+ * channel that terminated in the downloaded file. Must be called on the
+ * main thread, only after the download has finished successfully.
+ * @param aRedirects The nsIArray of nsIPrincipal of redirected URIs
+ * associated with the downloaded file.
+ */
+ void setRedirects(in nsIArray aRedirects);
+};
+
+%{C++
+/**
+ * A component with this contract ID will be created each time a download is
+ * started, and nsITransfer::Init will be called on it and an observer will be set.
+ *
+ * Notifications of the download progress will happen via
+ * nsIWebProgressListener/nsIWebProgressListener2.
+ *
+ * INTERFACES THAT MUST BE IMPLEMENTED:
+ * nsITransfer
+ * nsIWebProgressListener
+ * nsIWebProgressListener2
+ *
+ * XXX move this to nsEmbedCID.h once the interfaces (and the contract ID) are
+ * frozen.
+ */
+#define NS_TRANSFER_CONTRACTID "@mozilla.org/transfer;1"
+%}