diff options
Diffstat (limited to 'media/java/android/drm/mobile1/DrmRawContent.java')
| -rw-r--r-- | media/java/android/drm/mobile1/DrmRawContent.java | 464 |
1 files changed, 0 insertions, 464 deletions
diff --git a/media/java/android/drm/mobile1/DrmRawContent.java b/media/java/android/drm/mobile1/DrmRawContent.java deleted file mode 100644 index 046b84a..0000000 --- a/media/java/android/drm/mobile1/DrmRawContent.java +++ /dev/null @@ -1,464 +0,0 @@ -/* - * Copyright (C) 2007 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.drm.mobile1; - -import java.io.*; - -/** - * This class provides interfaces to access the DRM raw content. - */ -public class DrmRawContent { - /** - * The "application/vnd.oma.drm.message" mime type. - */ - public static final String DRM_MIMETYPE_MESSAGE_STRING = "application/vnd.oma.drm.message"; - - /** - * The "application/vnd.oma.drm.content" mime type. - */ - public static final String DRM_MIMETYPE_CONTENT_STRING = "application/vnd.oma.drm.content"; - - /** - * The DRM delivery type: Forward-Lock - */ - public static final int DRM_FORWARD_LOCK = 1; - - /** - * The DRM delivery type: Combined Delivery - */ - public static final int DRM_COMBINED_DELIVERY = 2; - - /** - * The DRM delivery type: Separate Delivery - */ - public static final int DRM_SEPARATE_DELIVERY = 3; - - /** - * The DRM delivery type: Separate Delivery in DRM message - */ - public static final int DRM_SEPARATE_DELIVERY_DM = 4; - - /** - * The DRM media content length is unknown currently - */ - public static final int DRM_UNKNOWN_DATA_LEN = -1; - - - /** - * The id of "application/vnd.oma.drm.message" mime type. - */ - private static final int DRM_MIMETYPE_MESSAGE = 1; - - /** - * The id of "application/vnd.oma.drm.content" mime type. - */ - private static final int DRM_MIMETYPE_CONTENT = 2; - - /** - * Successful operation. - */ - private static final int JNI_DRM_SUCCESS = 0; - - /** - * General failure. - */ - private static final int JNI_DRM_FAILURE = -1; - - /** - * Indicates the end of the DRM content is reached. - */ - private static final int JNI_DRM_EOF = -2; - - /** - * The media content length is unknown from native method - */ - private static final int JNI_DRM_UNKNOWN_DATA_LEN = -3; - - /** - * The member to save the original InputStream data. - */ - private BufferedInputStream inData; - - /** - * The member to save the original InputStream data length. - */ - private int inDataLen; - - /** - * The unique id to this DRM content. It will be initialized - * in constructor by native method. And it will not be changed - * after initialization. - */ - private int id; - - /** - * The rights issuer address of this DRM object. - */ - private String rightsIssuer; - - /** - * The media content type of this DRM object. - */ - private String mediaType; - - /** - * The delivery method type of this DRM object. - */ - private int rawType; - - - /** - * Construct a DrmRawContent object. - * - * @param inRawdata object of DRM raw data stream. - * @param len the length of raw data can be read. - * @param mimeTypeStr the mime type of the DRM content. - */ - public DrmRawContent(InputStream inRawdata, int len, String mimeTypeStr) throws DrmException, IOException { - int mimeType; - - id = -1; - inData = new BufferedInputStream(inRawdata, 1024); - inDataLen = len; - - if (DRM_MIMETYPE_MESSAGE_STRING.equals(mimeTypeStr)) - mimeType = DRM_MIMETYPE_MESSAGE; - else if (DRM_MIMETYPE_CONTENT_STRING.equals(mimeTypeStr)) - mimeType = DRM_MIMETYPE_CONTENT; - else - throw new IllegalArgumentException("mimeType must be DRM_MIMETYPE_MESSAGE or DRM_MIMETYPE_CONTENT"); - - if (len <= 0) - throw new IllegalArgumentException("len must be > 0"); - - /* call native method to initialize this DRM content */ - id = nativeConstructDrmContent(inData, inDataLen, mimeType); - - if (JNI_DRM_FAILURE == id) - throw new DrmException("nativeConstructDrmContent() returned JNI_DRM_FAILURE"); - - /* init the rights issuer field. */ - rightsIssuer = nativeGetRightsAddress(); - - /* init the raw content type. */ - rawType = nativeGetDeliveryMethod(); - if (JNI_DRM_FAILURE == rawType) - throw new DrmException("nativeGetDeliveryMethod() returned JNI_DRM_FAILURE"); - - /* init the media content type. */ - mediaType = nativeGetContentType(); - if (null == mediaType) - throw new DrmException("nativeGetContentType() returned null"); - } - - /** - * Get rights address from raw Seperate Delivery content. - * - * @return the string of the rights issuer address, - * or null if no rights issuer. - */ - public String getRightsAddress() { - return rightsIssuer; - } - - /** - * Get the type of the raw DRM content. - * - * @return one of the following delivery type of this DRM content: - * #DRM_FORWARD_LOCK - * #DRM_COMBINED_DELIVERY - * #DRM_SEPARATE_DELIVERY - * #DRM_SEPARATE_DELIVERY_DM - */ - public int getRawType() { - return rawType; - } - - /** - * Get one InputStream object to read decrypted content. - * - * @param rights the rights object contain decrypted key. - * - * @return the InputStream object of decrypted media content. - */ - public InputStream getContentInputStream(DrmRights rights) { - if (null == rights) - throw new NullPointerException(); - - return new DrmInputStream(rights); - } - - /** - * Get the type of the decrypted media content. - * - * @return the decrypted media content type of this DRM content. - */ - public String getContentType() { - return mediaType; - } - - /** - * Get the length of the decrypted media content. - * - * @param rights the rights object contain decrypted key. - * - * @return the length of the decrypted media content. - * #DRM_UNKNOWN_DATA_LEN if the length is unknown currently. - */ - public int getContentLength(DrmRights rights) throws DrmException { - /** - * Because currently the media object associate with rights object - * has been handled in native logic, so here it is not need to deal - * the rights. But for the apps, it is mandatory for user to get - * the rights object before get the media content length. - */ - if (null == rights) - throw new NullPointerException(); - - int mediaLen = nativeGetContentLength(); - - if (JNI_DRM_FAILURE == mediaLen) - throw new DrmException("nativeGetContentLength() returned JNI_DRM_FAILURE"); - - if (JNI_DRM_UNKNOWN_DATA_LEN == mediaLen) - return DRM_UNKNOWN_DATA_LEN; - - return mediaLen; - } - - /** - * This class provide a InputStream to the DRM media content. - */ - class DrmInputStream extends InputStream - { - /** - * The flag to indicate whether this stream is closed or not. - */ - private boolean isClosed; - - /** - * The offset of this DRM content to be reset. - */ - private int offset; - - /** - * A byte of data to be readed. - */ - private byte[] b; - - /** - * Construct a DrmInputStream instance. - */ - public DrmInputStream(DrmRights rights) { - /** - * Because currently the media object associate with rights object - * has been handled in native logic, so here it is not need to deal - * the rights. But for the apps, it is mandatory for user to get - * the rights object before get the media content data. - */ - - isClosed = false; - offset = 0; - b = new byte[1]; - } - - /* Non-javadoc - * @see java.io.InputStream#available() - */ - public int available() throws IOException { - /* call native method to get this DRM decrypted media content length */ - int len = nativeGetContentLength(); - - if (JNI_DRM_FAILURE == len) - throw new IOException(); - - /* if the length is unknown, just return 0 for available value */ - if (JNI_DRM_UNKNOWN_DATA_LEN == len) - return 0; - - int availableLen = len - offset; - if (availableLen < 0) - throw new IOException(); - - return availableLen; - } - - /* Non-javadoc - * @see java.io.InputStream#read() - */ - public int read() throws IOException { - int res; - - res = read(b, 0, 1); - - if (-1 == res) - return -1; - - return b[0] & 0xff; - } - - /* Non-javadoc - * @see java.io.InputStream#read(byte) - */ - public int read(byte[] b) throws IOException { - return read(b, 0, b.length); - } - - /* Non-javadoc - * @see java.io.InputStream#read(byte, int, int) - */ - public int read(byte[] b, int off, int len) throws IOException { - if (null == b) - throw new NullPointerException(); - if (off < 0 || len < 0 || off + len > b.length) - throw new IndexOutOfBoundsException(); - if (true == isClosed) - throw new IOException(); - - if (0 == len) - return 0; - - len = nativeReadContent(b, off, len, offset); - - if (JNI_DRM_FAILURE == len) - throw new IOException(); - else if (JNI_DRM_EOF == len) - return -1; - - offset += len; - - return len; - } - - /* Non-javadoc - * @see java.io.InputStream#markSupported() - */ - public boolean markSupported() { - return false; - } - - /* Non-javadoc - * @see java.io.InputStream#mark(int) - */ - public void mark(int readlimit) { - } - - /* Non-javadoc - * @see java.io.InputStream#reset() - */ - public void reset() throws IOException { - throw new IOException(); - } - - /* Non-javadoc - * @see java.io.InputStream#skip() - */ - public long skip(long n) throws IOException { - return 0; - } - - /* Non-javadoc - * @see java.io.InputStream#close() - */ - public void close() { - isClosed = true; - } - } - - /** - * native method: construct a DRM content according the mime type. - * - * @param data input DRM content data to be parsed. - * @param len the length of the data. - * @param mimeType the mime type of this DRM content. the value of this field includes: - * #DRM_MIMETYPE_MESSAGE - * #DRM_MIMETYPE_CONTENT - * - * @return #the id of the DRM content if succeed. - * #JNI_DRM_FAILURE if fail. - */ - private native int nativeConstructDrmContent(InputStream data, int len, int mimeType); - - /** - * native method: get this DRM content rights issuer. - * - * @return the address of rights issuer if in case of separate delivery. - * null if not separete delivery, or otherwise. - */ - private native String nativeGetRightsAddress(); - - /** - * native method: get this DRM content delivery type. - * - * @return the delivery method, the value may be one of the following: - * #DRM_FORWARD_LOCK - * #DRM_COMBINED_DELIVERY - * #DRM_SEPARATE_DELIVERY - * #DRM_SEPARATE_DELIVERY_DM - * #JNI_DRM_FAILURE if fail. - */ - private native int nativeGetDeliveryMethod(); - - /** - * native method: get a piece of media content data. - * - * @param buf the buffer to save DRM media content data. - * @param bufOff the offset of the buffer to start to save data. - * @param len the number of byte to read. - * @param mediaOff the offset of the media content data to start to read. - * - * @return the length of the media content data has been read. - * #JNI_DRM_EOF if reach to end of the media content. - * #JNI_DRM_FAILURE if fail. - */ - private native int nativeReadContent(byte[] buf, int bufOff, int len, int mediaOff); - - /** - * native method: get this DRM content type. - * - * @return the decrypted media content type. - * null if fail. - */ - private native String nativeGetContentType(); - - /** - * native method: get this DRM decrypted media content length. - * - * @return the length of decrypted media content. - * #JNI_DRM_FAILURE if fail. - * #JNI_DRM_UNKNOWN_DATA_LEN if the length is unknown currently. - */ - private native int nativeGetContentLength(); - - /** - * The finalizer of the DRMRawContent. Do some cleanup. - */ - protected native void finalize(); - - - /** - * Load the shared library to link the native methods. - */ - static { - try { - System.loadLibrary("drm1_jni"); - } - catch (UnsatisfiedLinkError ule) { - System.err.println("WARNING: Could not load libdrm1_jni.so"); - } - } -} |