1 files changed, 136 insertions, 0 deletions
diff --git a/errorprone/java/android/annotation/RequiresPermission.java b/errorprone/java/android/annotation/RequiresPermission.java
new file mode 100644
index 000000000000..303ab41bec8e
--- /dev/null
+++ b/errorprone/java/android/annotation/RequiresPermission.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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 android.annotation;
+
+import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
+import static java.lang.annotation.ElementType.CONSTRUCTOR;
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.PARAMETER;
+import static java.lang.annotation.RetentionPolicy.CLASS;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+/**
+ * Denotes that the annotated element requires (or may require) one or more permissions.
+ * <p/>
+ * Example of requiring a single permission:
+ * <pre>{@code
+ *   {@literal @}RequiresPermission(Manifest.permission.SET_WALLPAPER)
+ *   public abstract void setWallpaper(Bitmap bitmap) throws IOException;
+ *
+ *   {@literal @}RequiresPermission(ACCESS_COARSE_LOCATION)
+ *   public abstract Location getLastKnownLocation(String provider);
+ * }</pre>
+ * Example of requiring at least one permission from a set:
+ * <pre>{@code
+ *   {@literal @}RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION})
+ *   public abstract Location getLastKnownLocation(String provider);
+ * }</pre>
+ * Example of requiring multiple permissions:
+ * <pre>{@code
+ *   {@literal @}RequiresPermission(allOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION})
+ *   public abstract Location getLastKnownLocation(String provider);
+ * }</pre>
+ * Example of requiring separate read and write permissions for a content provider:
+ * <pre>{@code
+ *   {@literal @}RequiresPermission.Read(@RequiresPermission(READ_HISTORY_BOOKMARKS))
+ *   {@literal @}RequiresPermission.Write(@RequiresPermission(WRITE_HISTORY_BOOKMARKS))
+ *   public static final Uri BOOKMARKS_URI = Uri.parse("content://browser/bookmarks");
+ * }</pre>
+ * <p>
+ * When specified on a parameter, the annotation indicates that the method requires
+ * a permission which depends on the value of the parameter. For example, consider
+ * {@link android.app.Activity#startActivity(android.content.Intent)
+ * Activity#startActivity(Intent)}:
+ * <pre>{@code
+ *   public void startActivity(@RequiresPermission Intent intent) { ... }
+ * }</pre>
+ * Notice how there are no actual permission names listed in the annotation. The actual
+ * permissions required will depend on the particular intent passed in. For example,
+ * the code may look like this:
+ * <pre>{@code
+ *   Intent intent = new Intent(Intent.ACTION_CALL);
+ *   startActivity(intent);
+ * }</pre>
+ * and the actual permission requirement for this particular intent is described on
+ * the Intent name itself:
+ * <pre>{@code
+ *   {@literal @}RequiresPermission(Manifest.permission.CALL_PHONE)
+ *   public static final String ACTION_CALL = "android.intent.action.CALL";
+ * }</pre>
+ *
+ * @hide
+ */
+@Retention(CLASS)
+@Target({ANNOTATION_TYPE,METHOD,CONSTRUCTOR,FIELD,PARAMETER})
+public @interface RequiresPermission {
+    /**
+     * The name of the permission that is required, if precisely one permission
+     * is required. If more than one permission is required, specify either
+     * {@link #allOf()} or {@link #anyOf()} instead.
+     * <p>
+     * If specified, {@link #anyOf()} and {@link #allOf()} must both be null.
+     */
+    String value() default "";
+
+    /**
+     * Specifies a list of permission names that are all required.
+     * <p>
+     * If specified, {@link #anyOf()} and {@link #value()} must both be null.
+     */
+    String[] allOf() default {};
+
+    /**
+     * Specifies a list of permission names where at least one is required
+     * <p>
+     * If specified, {@link #allOf()} and {@link #value()} must both be null.
+     */
+    String[] anyOf() default {};
+
+    /**
+     * If true, the permission may not be required in all cases (e.g. it may only be
+     * enforced on certain platforms, or for certain call parameters, etc.
+     */
+    boolean conditional() default false;
+
+    /**
+     * Specifies that the given permission is required for read operations.
+     * <p>
+     * When specified on a parameter, the annotation indicates that the method requires
+     * a permission which depends on the value of the parameter (and typically
+     * the corresponding field passed in will be one of a set of constants which have
+     * been annotated with a <code>@RequiresPermission</code> annotation.)
+     */
+    @Target({FIELD, METHOD, PARAMETER})
+    @interface Read {
+        RequiresPermission value() default @RequiresPermission;
+    }
+
+    /**
+     * Specifies that the given permission is required for write operations.
+     * <p>
+     * When specified on a parameter, the annotation indicates that the method requires
+     * a permission which depends on the value of the parameter (and typically
+     * the corresponding field passed in will be one of a set of constants which have
+     * been annotated with a <code>@RequiresPermission</code> annotation.)
+     */
+    @Target({FIELD, METHOD, PARAMETER})
+    @interface Write {
+        RequiresPermission value() default @RequiresPermission;
+    }
+}