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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 #include "nsISupports.idl" |
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7 |
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8 interface nsIInputStream; |
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9 |
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10 /** |
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11 * nsIUploadChannel |
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12 * |
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13 * A channel may optionally implement this interface if it supports the |
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14 * notion of uploading a data stream. The upload stream may only be set |
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15 * prior to the invocation of asyncOpen on the channel. |
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16 */ |
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17 [scriptable, uuid(5cfe15bd-5adb-4a7f-9e55-4f5a67d15794)] |
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18 interface nsIUploadChannel : nsISupports |
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19 { |
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20 /** |
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21 * Sets a stream to be uploaded by this channel. |
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22 * |
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23 * Most implementations of this interface require that the stream: |
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24 * (1) implement threadsafe addRef and release |
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25 * (2) implement nsIInputStream::readSegments |
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26 * (3) implement nsISeekableStream::seek |
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27 * |
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28 * History here is that we need to support both streams that already have |
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29 * headers (e.g., Content-Type and Content-Length) information prepended to |
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30 * the stream (by plugins) as well as clients (composer, uploading |
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31 * application) that want to upload data streams without any knowledge of |
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32 * protocol specifications. For this reason, we have a special meaning |
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33 * for the aContentType parameter (see below). |
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34 * |
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35 * @param aStream |
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36 * The stream to be uploaded by this channel. |
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37 * @param aContentType |
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38 * If aContentType is empty, the protocol will assume that no |
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39 * content headers are to be added to the uploaded stream and that |
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40 * any required headers are already encoded in the stream. In the |
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41 * case of HTTP, if this parameter is non-empty, then its value will |
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42 * replace any existing Content-Type header on the HTTP request. |
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43 * In the case of FTP and FILE, this parameter is ignored. |
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44 * @param aContentLength |
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45 * A value of -1 indicates that the length of the stream should be |
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46 * determined by calling the stream's |available| method. |
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47 */ |
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48 void setUploadStream(in nsIInputStream aStream, |
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49 in ACString aContentType, |
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50 in long long aContentLength); |
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51 |
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52 /** |
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53 * Get the stream (to be) uploaded by this channel. |
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54 */ |
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55 readonly attribute nsIInputStream uploadStream; |
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56 }; |