1/*
2 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "NetscapePlugInStreamLoader.h"
31
32#include "FrameLoader.h"
33#include "DocumentLoader.h"
34
35namespace WebCore {
36
37NetscapePlugInStreamLoader::NetscapePlugInStreamLoader(Frame* frame, NetscapePlugInStreamLoaderClient* client)
38    : ResourceLoader(frame, true, true)
39    , m_client(client)
40{
41}
42
43NetscapePlugInStreamLoader::~NetscapePlugInStreamLoader()
44{
45}
46
47PassRefPtr<NetscapePlugInStreamLoader> NetscapePlugInStreamLoader::create(Frame* frame, NetscapePlugInStreamLoaderClient* client, const ResourceRequest& request)
48{
49    RefPtr<NetscapePlugInStreamLoader> loader(adoptRef(new NetscapePlugInStreamLoader(frame, client)));
50    loader->setShouldBufferData(false);
51    loader->documentLoader()->addPlugInStreamLoader(loader.get());
52    if (!loader->init(request))
53        return 0;
54
55    return loader.release();
56}
57
58bool NetscapePlugInStreamLoader::isDone() const
59{
60    return !m_client;
61}
62
63void NetscapePlugInStreamLoader::releaseResources()
64{
65    m_client = 0;
66    ResourceLoader::releaseResources();
67}
68
69void NetscapePlugInStreamLoader::didReceiveResponse(const ResourceResponse& response)
70{
71    RefPtr<NetscapePlugInStreamLoader> protect(this);
72
73    m_client->didReceiveResponse(this, response);
74
75    // Don't continue if the stream is cancelled
76    if (!m_client)
77        return;
78
79    ResourceLoader::didReceiveResponse(response);
80
81    // Don't continue if the stream is cancelled
82    if (!m_client)
83        return;
84
85    if (!response.isHTTP())
86        return;
87
88    if (m_client->wantsAllStreams())
89        return;
90
91    if (response.httpStatusCode() < 100 || response.httpStatusCode() >= 400)
92        didCancel(frameLoader()->fileDoesNotExistError(response));
93}
94
95void NetscapePlugInStreamLoader::didReceiveData(const char* data, int length, long long encodedDataLength, bool allAtOnce)
96{
97    RefPtr<NetscapePlugInStreamLoader> protect(this);
98
99    m_client->didReceiveData(this, data, length);
100
101    ResourceLoader::didReceiveData(data, length, encodedDataLength, allAtOnce);
102}
103
104void NetscapePlugInStreamLoader::didFinishLoading(double finishTime)
105{
106    RefPtr<NetscapePlugInStreamLoader> protect(this);
107
108    m_documentLoader->removePlugInStreamLoader(this);
109    m_client->didFinishLoading(this);
110    ResourceLoader::didFinishLoading(finishTime);
111}
112
113void NetscapePlugInStreamLoader::didFail(const ResourceError& error)
114{
115    RefPtr<NetscapePlugInStreamLoader> protect(this);
116
117    m_documentLoader->removePlugInStreamLoader(this);
118    m_client->didFail(this, error);
119    ResourceLoader::didFail(error);
120}
121
122void NetscapePlugInStreamLoader::didCancel(const ResourceError& error)
123{
124    RefPtr<NetscapePlugInStreamLoader> protect(this);
125
126    m_client->didFail(this, error);
127
128    // If calling didFail spins the run loop the stream loader can reach the terminal state.
129    // If that's the case we just return early.
130    if (reachedTerminalState())
131        return;
132
133    // We need to remove the stream loader after the call to didFail, since didFail can
134    // spawn a new run loop and if the loader has been removed it won't be deferred when
135    // the document loader is asked to defer loading.
136    m_documentLoader->removePlugInStreamLoader(this);
137
138    ResourceLoader::didCancel(error);
139}
140
141}
142