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 java.net.MalformedURLException;
35import java.net.URL;
36import java.util.HashMap;
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.stanzas.IqPacket;
46import eu.siacs.conversations.xmpp.Jid;
47
48public class SlotRequester {
49
50 private XmppConnectionService service;
51
52 public SlotRequester(XmppConnectionService service) {
53 this.service = service;
54 }
55
56 public void request(Method method, Account account, DownloadableFile file, String mime, String md5, OnSlotRequested callback) {
57 if (method == Method.HTTP_UPLOAD) {
58 Jid host = account.getXmppConnection().findDiscoItemByFeature(Namespace.HTTP_UPLOAD);
59 requestHttpUpload(account, host, file, mime, callback);
60 } else if (method == Method.HTTP_UPLOAD_LEGACY) {
61 Jid host = account.getXmppConnection().findDiscoItemByFeature(Namespace.HTTP_UPLOAD_LEGACY);
62 requestHttpUploadLegacy(account, host, file, mime, callback);
63 } else {
64 requestP1S3(account, Jid.of(account.getServer()), file.getName(), md5, 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 Slot slot = new Slot(new URL(putUrl));
79 slot.getUrl = new URL(getUrl);
80 slot.headers = new HashMap<>();
81 slot.headers.put("Content-Type", mime == null ? "application/octet-stream" : mime);
82 callback.success(slot);
83 return;
84 }
85 } catch (MalformedURLException e) {
86 //fall through
87 }
88 }
89 }
90 Log.d(Config.LOGTAG, account.getJid().toString() + ": invalid response to slot request " + packet);
91 callback.failure(IqParser.extractErrorMessage(packet));
92 });
93
94 }
95
96 private void requestHttpUpload(Account account, Jid host, DownloadableFile file, String mime, OnSlotRequested callback) {
97 IqPacket request = service.getIqGenerator().requestHttpUploadSlot(host, file, mime);
98 service.sendIqPacket(account, request, (a, packet) -> {
99 if (packet.getType() == IqPacket.TYPE.RESULT) {
100 Element slotElement = packet.findChild("slot", Namespace.HTTP_UPLOAD);
101 if (slotElement != null) {
102 try {
103 final Element put = slotElement.findChild("put");
104 final Element get = slotElement.findChild("get");
105 final String putUrl = put == null ? null : put.getAttribute("url");
106 final String getUrl = get == null ? null : get.getAttribute("url");
107 if (getUrl != null && putUrl != null) {
108 Slot slot = new Slot(new URL(putUrl));
109 slot.getUrl = new URL(getUrl);
110 slot.headers = new HashMap<>();
111 for (Element child : put.getChildren()) {
112 if ("header".equals(child.getName())) {
113 final String name = child.getAttribute("name");
114 final String value = child.getContent();
115 if (HttpUploadConnection.WHITE_LISTED_HEADERS.contains(name) && value != null && !value.trim().contains("\n")) {
116 slot.headers.put(name, value.trim());
117 }
118 }
119 }
120 slot.headers.put("Content-Type", mime == null ? "application/octet-stream" : mime);
121 callback.success(slot);
122 return;
123 }
124 } catch (MalformedURLException 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 private void requestP1S3(final Account account, Jid host, String filename, String md5, OnSlotRequested callback) {
136 IqPacket request = service.getIqGenerator().requestP1S3Slot(host, md5);
137 service.sendIqPacket(account, request, (a, packet) -> {
138 if (packet.getType() == IqPacket.TYPE.RESULT) {
139 String putUrl = packet.query(Namespace.P1_S3_FILE_TRANSFER).getAttribute("upload");
140 String id = packet.query().getAttribute("fileid");
141 try {
142 if (putUrl != null && id != null) {
143 Slot slot = new Slot(new URL(putUrl));
144 slot.getUrl = P1S3UrlStreamHandler.of(id, filename);
145 slot.headers = new HashMap<>();
146 slot.headers.put("Content-MD5", md5);
147 slot.headers.put("Content-Type", " "); //required to force it to empty. otherwise library will set something
148 callback.success(slot);
149 return;
150 }
151 } catch (MalformedURLException e) {
152 //fall through;
153 }
154 }
155 callback.failure("unable to request slot");
156 });
157 Log.d(Config.LOGTAG, "requesting slot with p1. md5=" + md5);
158 }
159
160
161 public interface OnSlotRequested {
162
163 void success(Slot slot);
164
165 void failure(String message);
166
167 }
168
169 public static class Slot {
170 private final URL putUrl;
171 private URL getUrl;
172 private HashMap<String, String> headers;
173
174 private Slot(URL putUrl) {
175 this.putUrl = putUrl;
176 }
177
178 public URL getPutUrl() {
179 return putUrl;
180 }
181
182 public URL getGetUrl() {
183 return getUrl;
184 }
185
186 public HashMap<String, String> getHeaders() {
187 return headers;
188 }
189 }
190}