Make EhClient request cancellable

app/src/main/java/com/hippo/ehviewer/client/EhEngine.java

@@ -0,0 +1,139 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer.client;
+
+import com.hippo.ehviewer.client.data.GalleryDetail;
+import com.hippo.ehviewer.client.data.PreviewSet;
+import com.hippo.httpclient.FormPoster;
+import com.hippo.httpclient.HttpClient;
+import com.hippo.httpclient.HttpRequest;
+import com.hippo.httpclient.HttpResponse;
+import com.hippo.httpclient.JsonPoster;
+
+import org.json.JSONObject;
+
+class EhEngine {
+
+    private static final String SIGN_IN_URL = "http://forums.e-hentai.org/index.php?act=Login&CODE=01";
+    public static final String API_EHVIEWER = "http://www.ehviewer.com/API";
+
+    public static String signIn(HttpClient httpClient, HttpRequest httpRequest,
+            String username, String password) throws Exception {
+        try {
+            FormPoster formPoster = new FormPoster();
+            formPoster.addData("UserName", username)
+                    .addData("PassWord", password)
+                    .addData("submit", "Log me in")
+                    .addData("CookieDate", "1")
+                    .addData("temporary_https", "off");
+            httpRequest.setUrl(SIGN_IN_URL);
+            httpRequest.setHttpImpl(formPoster);
+            HttpResponse response = httpClient.execute(httpRequest);
+            String body = response.getString();
+            return SignInParser.parse(body);
+        } catch (Exception e) {
+            if (httpRequest.isCanceled()) {
+                throw new CanceledException();
+            } else {
+                throw e;
+            }
+        } finally {
+            httpRequest.disconnect();
+        }
+    }
+
+    public static GalleryListParser.Result getGalleryList(HttpClient httpClient,
+            HttpRequest httpRequest, String url, int source) throws Exception {
+        try {
+            httpRequest.setUrl(url);
+            HttpResponse response = httpClient.execute(httpRequest);
+            String body = response.getString();
+            return GalleryListParser.parse(body, source);
+        } catch (Exception e) {
+            if (httpRequest.isCanceled()) {
+                throw new CanceledException();
+            } else {
+                throw e;
+            }
+        } finally {
+            httpRequest.disconnect();
+        }
+    }
+
+    public static PopularParser.Result getPopular(HttpClient httpClient,
+            HttpRequest httpRequest) throws Exception {
+        try {
+            final JSONObject json = new JSONObject();
+            json.put("method", "popular");
+            JsonPoster jsonPoster = new JsonPoster(json);
+            httpRequest.setUrl(API_EHVIEWER);
+            httpRequest.setHttpImpl(jsonPoster);
+            HttpResponse response = httpClient.execute(httpRequest);
+            String body = response.getString();
+            return PopularParser.parse(body);
+        } catch (Exception e) {
+            if (httpRequest.isCanceled()) {
+                throw new CanceledException();
+            } else {
+                throw e;
+            }
+        } finally {
+            httpRequest.disconnect();
+        }
+    }
+
+    public static GalleryDetail getGalleryDetail(HttpClient httpClient,
+            HttpRequest httpRequest, String url, int source) throws Exception {
+        try {
+            httpRequest.setUrl(url);
+            HttpResponse response = httpClient.execute(httpRequest);
+            String body = response.getString();
+            return GalleryDetailParser.parse(body, source,
+                    GalleryDetailParser.REQUEST_DETAIL |
+                            GalleryDetailParser.REQUEST_TAG |
+                            GalleryDetailParser.REQUEST_PREVIEW_INFO |
+                            GalleryDetailParser.REQUEST_PREVIEW |
+                            GalleryDetailParser.REQUEST_COMMENT);
+        } catch (Exception e) {
+            if (httpRequest.isCanceled()) {
+                throw new CanceledException();
+            } else {
+                throw e;
+            }
+        } finally {
+            httpRequest.disconnect();
+        }
+    }
+
+    public static PreviewSet getPreviewSet(HttpClient httpClient,
+            HttpRequest httpRequest, String url, int source) throws Exception {
+        try {
+            httpRequest.setUrl(url);
+            HttpResponse response = httpClient.execute(httpRequest);
+            String body = response.getString();
+            return GalleryDetailParser.parsePreview(body, source);
+        } catch (Exception e) {
+            if (httpRequest.isCanceled()) {
+                throw new CanceledException();
+            } else {
+                throw e;
+            }
+        } finally {
+            httpRequest.disconnect();
+        }
+    }
+}