1/*
2 * Copyright (c) 2018, Daniel Gultsch All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation and/or
12 * other materials provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors
15 * may be used to endorse or promote products derived from this software without
16 * specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
25 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30package eu.siacs.conversations.http;
31
32import android.util.Log;
33
34import com.google.common.collect.ImmutableMap;
35
36import java.util.Map;
37
38import eu.siacs.conversations.Config;
39import eu.siacs.conversations.entities.Account;
40import eu.siacs.conversations.entities.DownloadableFile;
41import eu.siacs.conversations.parser.IqParser;
42import eu.siacs.conversations.services.XmppConnectionService;
43import eu.siacs.conversations.xml.Element;
44import eu.siacs.conversations.xml.Namespace;
45import eu.siacs.conversations.xmpp.Jid;
46import eu.siacs.conversations.xmpp.stanzas.IqPacket;
47import okhttp3.Headers;
48import okhttp3.HttpUrl;
49
50public class SlotRequester {
51
52 private final XmppConnectionService service;
53
54 public SlotRequester(XmppConnectionService service) {
55 this.service = service;
56 }
57
58 public void request(Method method, Account account, DownloadableFile file, String mime, OnSlotRequested callback) {
59 if (method == Method.HTTP_UPLOAD_LEGACY) {
60 final Jid host = account.getXmppConnection().findDiscoItemByFeature(Namespace.HTTP_UPLOAD_LEGACY);
61 requestHttpUploadLegacy(account, host, file, mime, callback);
62 } else {
63 final Jid host = account.getXmppConnection().findDiscoItemByFeature(Namespace.HTTP_UPLOAD);
64 requestHttpUpload(account, host, file, mime, callback);
65 }
66 }
67
68 private void requestHttpUploadLegacy(Account account, Jid host, DownloadableFile file, String mime, OnSlotRequested callback) {
69 IqPacket request = service.getIqGenerator().requestHttpUploadLegacySlot(host, file, mime);
70 service.sendIqPacket(account, request, (a, packet) -> {
71 if (packet.getType() == IqPacket.TYPE.RESULT) {
72 Element slotElement = packet.findChild("slot", Namespace.HTTP_UPLOAD_LEGACY);
73 if (slotElement != null) {
74 try {
75 final String putUrl = slotElement.findChildContent("put");
76 final String getUrl = slotElement.findChildContent("get");
77 if (getUrl != null && putUrl != null) {
78 final Slot slot = new Slot(
79 HttpUrl.get(putUrl),
80 HttpUrl.get(getUrl),
81 Headers.of("Content-Type", mime == null ? "application/octet-stream" : mime)
82 );
83 callback.success(slot);
84 return;
85 }
86 } catch (IllegalArgumentException e) {
87 //fall through
88 }
89 }
90 }
91 Log.d(Config.LOGTAG, account.getJid().toString() + ": invalid response to slot request " + packet);
92 callback.failure(IqParser.extractErrorMessage(packet));
93 });
94
95 }
96
97 private void requestHttpUpload(Account account, Jid host, DownloadableFile file, String mime, OnSlotRequested callback) {
98 IqPacket request = service.getIqGenerator().requestHttpUploadSlot(host, file, mime);
99 service.sendIqPacket(account, request, (a, packet) -> {
100 if (packet.getType() == IqPacket.TYPE.RESULT) {
101 final Element slotElement = packet.findChild("slot", Namespace.HTTP_UPLOAD);
102 if (slotElement != null) {
103 try {
104 final Element put = slotElement.findChild("put");
105 final Element get = slotElement.findChild("get");
106 final String putUrl = put == null ? null : put.getAttribute("url");
107 final String getUrl = get == null ? null : get.getAttribute("url");
108 if (getUrl != null && putUrl != null) {
109 final ImmutableMap.Builder<String, String> headers = new ImmutableMap.Builder<>();
110 for (Element child : put.getChildren()) {
111 if ("header".equals(child.getName())) {
112 final String name = child.getAttribute("name");
113 final String value = child.getContent();
114 if (HttpUploadConnection.WHITE_LISTED_HEADERS.contains(name) && value != null && !value.trim().contains("\n")) {
115 headers.put(name, value.trim());
116 }
117 }
118 }
119 headers.put("Content-Type", mime == null ? "application/octet-stream" : mime);
120 final Slot slot = new Slot(HttpUrl.get(putUrl), HttpUrl.get(getUrl), headers.build());
121 callback.success(slot);
122 return;
123 }
124 } catch (IllegalArgumentException e) {
125 //fall through
126 }
127 }
128 }
129 Log.d(Config.LOGTAG, account.getJid().toString() + ": invalid response to slot request " + packet);
130 callback.failure(IqParser.extractErrorMessage(packet));
131 });
132
133 }
134
135 public interface OnSlotRequested {
136 void success(Slot slot);
137 void failure(String message);
138 }
139
140 public static class Slot {
141 public final HttpUrl put;
142 public final HttpUrl get;
143 public final Headers headers;
144
145 private Slot(HttpUrl put, HttpUrl get, Headers headers) {
146 this.put = put;
147 this.get = get;
148 this.headers = headers;
149 }
150
151 private Slot(HttpUrl put, HttpUrl getUrl, Map<String, String> headers) {
152 this.put = put;
153 this.get = getUrl;
154 this.headers = Headers.of(headers);
155 }
156 }
157}