1package eu.siacs.conversations.http;
2
3import static eu.siacs.conversations.utils.Random.SECURE_RANDOM;
4
5import android.util.Log;
6
7import androidx.annotation.NonNull;
8import androidx.annotation.Nullable;
9
10import com.google.common.util.concurrent.FutureCallback;
11import com.google.common.util.concurrent.Futures;
12import com.google.common.util.concurrent.ListenableFuture;
13import com.google.common.util.concurrent.MoreExecutors;
14
15import java.io.IOException;
16import java.util.Arrays;
17import java.util.List;
18import java.util.concurrent.Future;
19
20import eu.siacs.conversations.Config;
21import eu.siacs.conversations.entities.Account;
22import eu.siacs.conversations.entities.DownloadableFile;
23import eu.siacs.conversations.entities.Message;
24import eu.siacs.conversations.entities.Transferable;
25import eu.siacs.conversations.services.AbstractConnectionManager;
26import eu.siacs.conversations.services.XmppConnectionService;
27import eu.siacs.conversations.utils.CryptoHelper;
28import okhttp3.Call;
29import okhttp3.Callback;
30import okhttp3.OkHttpClient;
31import okhttp3.Request;
32import okhttp3.RequestBody;
33import okhttp3.Response;
34
35public class HttpUploadConnection implements Transferable, AbstractConnectionManager.ProgressListener {
36
37 static final List<String> WHITE_LISTED_HEADERS = Arrays.asList(
38 "Authorization",
39 "Cookie",
40 "Expires"
41 );
42
43 private final HttpConnectionManager mHttpConnectionManager;
44 private final XmppConnectionService mXmppConnectionService;
45 private final Method method;
46 private boolean delayed = false;
47 private DownloadableFile file;
48 private final Message message;
49 private SlotRequester.Slot slot;
50 private byte[] key = null;
51
52 private long transmitted = 0;
53 private Call mostRecentCall;
54 private ListenableFuture<SlotRequester.Slot> slotFuture;
55
56 public HttpUploadConnection(Message message, Method method, HttpConnectionManager httpConnectionManager) {
57 this.message = message;
58 this.method = method;
59 this.mHttpConnectionManager = httpConnectionManager;
60 this.mXmppConnectionService = httpConnectionManager.getXmppConnectionService();
61 }
62
63 @Override
64 public boolean start() {
65 return false;
66 }
67
68 @Override
69 public int getStatus() {
70 return STATUS_UPLOADING;
71 }
72
73 @Override
74 public Long getFileSize() {
75 return file == null ? null : file.getExpectedSize();
76 }
77
78 @Override
79 public int getProgress() {
80 if (file == null) {
81 return 0;
82 }
83 return (int) ((((double) transmitted) / file.getExpectedSize()) * 100);
84 }
85
86 @Override
87 public void cancel() {
88 final ListenableFuture<SlotRequester.Slot> slotFuture = this.slotFuture;
89 if (slotFuture != null && !slotFuture.isDone()) {
90 if (slotFuture.cancel(true)) {
91 Log.d(Config.LOGTAG,"cancelled slot requester");
92 }
93 }
94 final Call call = this.mostRecentCall;
95 if (call != null && !call.isCanceled()) {
96 call.cancel();
97 Log.d(Config.LOGTAG,"cancelled HTTP request");
98 }
99 }
100
101 private void fail(String errorMessage) {
102 finish();
103 final Call call = this.mostRecentCall;
104 final Future<SlotRequester.Slot> slotFuture = this.slotFuture;
105 final boolean cancelled = (call != null && call.isCanceled()) || (slotFuture != null && slotFuture.isCancelled());
106 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, cancelled ? Message.ERROR_MESSAGE_CANCELLED : errorMessage);
107 }
108
109 private void finish() {
110 mHttpConnectionManager.finishUploadConnection(this);
111 message.setTransferable(null);
112 }
113
114 public void init(boolean delay) {
115 final Account account = message.getConversation().getAccount();
116 this.file = mXmppConnectionService.getFileBackend().getFile(message, false);
117 final String mime;
118 if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
119 mime = "application/pgp-encrypted";
120 } else {
121 mime = this.file.getMimeType();
122 }
123 final long originalFileSize = file.getSize();
124 this.delayed = delay;
125 if (Config.ENCRYPT_ON_HTTP_UPLOADED
126 || message.getEncryption() == Message.ENCRYPTION_AXOLOTL
127 || message.getEncryption() == Message.ENCRYPTION_OTR) {
128 this.key = new byte[44];
129 SECURE_RANDOM.nextBytes(this.key);
130 this.file.setKeyAndIv(this.key);
131 }
132 this.file.setExpectedSize(originalFileSize + (file.getKey() != null ? 16 : 0));
133 this.slotFuture = new SlotRequester(mXmppConnectionService).request(method, account, file, message.getFileParams().getName(), mime);
134 Futures.addCallback(this.slotFuture, new FutureCallback<SlotRequester.Slot>() {
135 @Override
136 public void onSuccess(@Nullable SlotRequester.Slot result) {
137 HttpUploadConnection.this.slot = result;
138 try {
139 HttpUploadConnection.this.upload();
140 } catch (final Exception e) {
141 fail(e.getMessage());
142 }
143 }
144
145 @Override
146 public void onFailure(@NonNull final Throwable throwable) {
147 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to request slot", throwable);
148 // TODO consider fall back to jingle in 1-on-1 chats with exactly one online presence
149 fail(throwable.getMessage());
150 }
151 }, MoreExecutors.directExecutor());
152 message.setTransferable(this);
153 mXmppConnectionService.markMessage(message, Message.STATUS_UNSEND);
154 }
155
156 private void upload() {
157 final OkHttpClient client = mHttpConnectionManager.buildHttpClient(
158 slot.put,
159 message.getConversation().getAccount(),
160 0,
161 true
162 );
163 final RequestBody requestBody = AbstractConnectionManager.requestBody(file, this);
164 final Request request = new Request.Builder()
165 .url(slot.put)
166 .put(requestBody)
167 .headers(slot.headers)
168 .build();
169 Log.d(Config.LOGTAG, "uploading file to " + slot.put);
170 this.mostRecentCall = client.newCall(request);
171 this.mostRecentCall.enqueue(new Callback() {
172 @Override
173 public void onFailure(@NonNull Call call, IOException e) {
174 Log.d(Config.LOGTAG, "http upload failed", e);
175 fail(e.getMessage());
176 }
177
178 @Override
179 public void onResponse(@NonNull Call call, @NonNull Response response) {
180 final int code = response.code();
181 if (code == 200 || code == 201) {
182 Log.d(Config.LOGTAG, "finished uploading file");
183 final String get;
184 if (key != null) {
185 get = AesGcmURL.toAesGcmUrl(slot.get.newBuilder().fragment(CryptoHelper.bytesToHex(key)).build());
186 } else {
187 get = slot.get.toString();
188 }
189 mXmppConnectionService.getFileBackend().updateFileParams(message, get);
190 mXmppConnectionService.getFileBackend().updateMediaScanner(file);
191 finish();
192 if (!message.isPrivateMessage()) {
193 message.setCounterpart(message.getConversation().getJid().asBareJid());
194 }
195 mXmppConnectionService.resendMessage(message, delayed);
196 } else {
197 Log.d(Config.LOGTAG, "http upload failed because response code was " + code);
198 fail("http upload failed because response code was " + code);
199 }
200 }
201 });
202 }
203
204 public Message getMessage() {
205 return message;
206 }
207
208 @Override
209 public void onProgress(final long progress) {
210 this.transmitted = progress;
211 mHttpConnectionManager.updateConversationUi(false);
212 }
213}