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