302 lines
13 KiB
Java
302 lines
13 KiB
Java
package androidx.core.content;
|
|
|
|
import android.content.ContentProvider;
|
|
import android.content.ContentValues;
|
|
import android.content.Context;
|
|
import android.content.pm.ProviderInfo;
|
|
import android.content.res.XmlResourceParser;
|
|
import android.database.Cursor;
|
|
import android.database.MatrixCursor;
|
|
import android.net.Uri;
|
|
import android.os.Environment;
|
|
import android.os.ParcelFileDescriptor;
|
|
import android.text.TextUtils;
|
|
import android.webkit.MimeTypeMap;
|
|
import androidx.annotation.GuardedBy;
|
|
import androidx.annotation.NonNull;
|
|
import androidx.annotation.Nullable;
|
|
import c.d.b.a.a;
|
|
import java.io.File;
|
|
import java.io.FileNotFoundException;
|
|
import java.io.IOException;
|
|
import java.util.HashMap;
|
|
import java.util.Map;
|
|
import org.xmlpull.v1.XmlPullParserException;
|
|
public class FileProvider extends ContentProvider {
|
|
private static final String ATTR_NAME = "name";
|
|
private static final String ATTR_PATH = "path";
|
|
private static final String[] COLUMNS = {"_display_name", "_size"};
|
|
private static final File DEVICE_ROOT = new File("/");
|
|
private static final String META_DATA_FILE_PROVIDER_PATHS = "android.support.FILE_PROVIDER_PATHS";
|
|
private static final String TAG_CACHE_PATH = "cache-path";
|
|
private static final String TAG_EXTERNAL = "external-path";
|
|
private static final String TAG_EXTERNAL_CACHE = "external-cache-path";
|
|
private static final String TAG_EXTERNAL_FILES = "external-files-path";
|
|
private static final String TAG_EXTERNAL_MEDIA = "external-media-path";
|
|
private static final String TAG_FILES_PATH = "files-path";
|
|
private static final String TAG_ROOT_PATH = "root-path";
|
|
@GuardedBy("sCache")
|
|
private static HashMap<String, PathStrategy> sCache = new HashMap<>();
|
|
private PathStrategy mStrategy;
|
|
|
|
public interface PathStrategy {
|
|
File getFileForUri(Uri uri);
|
|
|
|
Uri getUriForFile(File file);
|
|
}
|
|
|
|
public static class SimplePathStrategy implements PathStrategy {
|
|
private final String mAuthority;
|
|
private final HashMap<String, File> mRoots = new HashMap<>();
|
|
|
|
public SimplePathStrategy(String str) {
|
|
this.mAuthority = str;
|
|
}
|
|
|
|
public void addRoot(String str, File file) {
|
|
if (!TextUtils.isEmpty(str)) {
|
|
try {
|
|
this.mRoots.put(str, file.getCanonicalFile());
|
|
} catch (IOException e) {
|
|
throw new IllegalArgumentException("Failed to resolve canonical path for " + file, e);
|
|
}
|
|
} else {
|
|
throw new IllegalArgumentException("Name must not be empty");
|
|
}
|
|
}
|
|
|
|
@Override // androidx.core.content.FileProvider.PathStrategy
|
|
public File getFileForUri(Uri uri) {
|
|
String encodedPath = uri.getEncodedPath();
|
|
int indexOf = encodedPath.indexOf(47, 1);
|
|
String decode = Uri.decode(encodedPath.substring(1, indexOf));
|
|
String decode2 = Uri.decode(encodedPath.substring(indexOf + 1));
|
|
File file = this.mRoots.get(decode);
|
|
if (file != null) {
|
|
File file2 = new File(file, decode2);
|
|
try {
|
|
File canonicalFile = file2.getCanonicalFile();
|
|
if (canonicalFile.getPath().startsWith(file.getPath())) {
|
|
return canonicalFile;
|
|
}
|
|
throw new SecurityException("Resolved path jumped beyond configured root");
|
|
} catch (IOException unused) {
|
|
throw new IllegalArgumentException("Failed to resolve canonical path for " + file2);
|
|
}
|
|
} else {
|
|
throw new IllegalArgumentException("Unable to find configured root for " + uri);
|
|
}
|
|
}
|
|
|
|
@Override // androidx.core.content.FileProvider.PathStrategy
|
|
public Uri getUriForFile(File file) {
|
|
try {
|
|
String canonicalPath = file.getCanonicalPath();
|
|
Map.Entry<String, File> entry = null;
|
|
for (Map.Entry<String, File> entry2 : this.mRoots.entrySet()) {
|
|
String path = entry2.getValue().getPath();
|
|
if (canonicalPath.startsWith(path) && (entry == null || path.length() > entry.getValue().getPath().length())) {
|
|
entry = entry2;
|
|
}
|
|
}
|
|
if (entry != null) {
|
|
String path2 = entry.getValue().getPath();
|
|
String substring = path2.endsWith("/") ? canonicalPath.substring(path2.length()) : canonicalPath.substring(path2.length() + 1);
|
|
return new Uri.Builder().scheme("content").authority(this.mAuthority).encodedPath(Uri.encode(entry.getKey()) + '/' + Uri.encode(substring, "/")).build();
|
|
}
|
|
throw new IllegalArgumentException(a.t("Failed to find configured root that contains ", canonicalPath));
|
|
} catch (IOException unused) {
|
|
throw new IllegalArgumentException("Failed to resolve canonical path for " + file);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static File buildPath(File file, String... strArr) {
|
|
for (String str : strArr) {
|
|
if (str != null) {
|
|
file = new File(file, str);
|
|
}
|
|
}
|
|
return file;
|
|
}
|
|
|
|
private static Object[] copyOf(Object[] objArr, int i) {
|
|
Object[] objArr2 = new Object[i];
|
|
System.arraycopy(objArr, 0, objArr2, 0, i);
|
|
return objArr2;
|
|
}
|
|
|
|
private static String[] copyOf(String[] strArr, int i) {
|
|
String[] strArr2 = new String[i];
|
|
System.arraycopy(strArr, 0, strArr2, 0, i);
|
|
return strArr2;
|
|
}
|
|
|
|
private static PathStrategy getPathStrategy(Context context, String str) {
|
|
PathStrategy pathStrategy;
|
|
synchronized (sCache) {
|
|
pathStrategy = sCache.get(str);
|
|
if (pathStrategy == null) {
|
|
try {
|
|
pathStrategy = parsePathStrategy(context, str);
|
|
sCache.put(str, pathStrategy);
|
|
} catch (IOException e) {
|
|
throw new IllegalArgumentException("Failed to parse android.support.FILE_PROVIDER_PATHS meta-data", e);
|
|
} catch (XmlPullParserException e2) {
|
|
throw new IllegalArgumentException("Failed to parse android.support.FILE_PROVIDER_PATHS meta-data", e2);
|
|
}
|
|
}
|
|
}
|
|
return pathStrategy;
|
|
}
|
|
|
|
public static Uri getUriForFile(@NonNull Context context, @NonNull String str, @NonNull File file) {
|
|
return getPathStrategy(context, str).getUriForFile(file);
|
|
}
|
|
|
|
private static int modeToMode(String str) {
|
|
if ("r".equals(str)) {
|
|
return 268435456;
|
|
}
|
|
if ("w".equals(str) || "wt".equals(str)) {
|
|
return 738197504;
|
|
}
|
|
if ("wa".equals(str)) {
|
|
return 704643072;
|
|
}
|
|
if ("rw".equals(str)) {
|
|
return 939524096;
|
|
}
|
|
if ("rwt".equals(str)) {
|
|
return 1006632960;
|
|
}
|
|
throw new IllegalArgumentException(a.t("Invalid mode: ", str));
|
|
}
|
|
|
|
private static PathStrategy parsePathStrategy(Context context, String str) throws IOException, XmlPullParserException {
|
|
SimplePathStrategy simplePathStrategy = new SimplePathStrategy(str);
|
|
ProviderInfo resolveContentProvider = context.getPackageManager().resolveContentProvider(str, 128);
|
|
if (resolveContentProvider != null) {
|
|
XmlResourceParser loadXmlMetaData = resolveContentProvider.loadXmlMetaData(context.getPackageManager(), "android.support.FILE_PROVIDER_PATHS");
|
|
if (loadXmlMetaData != null) {
|
|
while (true) {
|
|
int next = loadXmlMetaData.next();
|
|
if (next == 1) {
|
|
return simplePathStrategy;
|
|
}
|
|
if (next == 2) {
|
|
String name = loadXmlMetaData.getName();
|
|
File file = null;
|
|
String attributeValue = loadXmlMetaData.getAttributeValue(null, "name");
|
|
String attributeValue2 = loadXmlMetaData.getAttributeValue(null, "path");
|
|
if ("root-path".equals(name)) {
|
|
file = DEVICE_ROOT;
|
|
} else if ("files-path".equals(name)) {
|
|
file = context.getFilesDir();
|
|
} else if ("cache-path".equals(name)) {
|
|
file = context.getCacheDir();
|
|
} else if ("external-path".equals(name)) {
|
|
file = Environment.getExternalStorageDirectory();
|
|
} else if ("external-files-path".equals(name)) {
|
|
File[] externalFilesDirs = ContextCompat.getExternalFilesDirs(context, null);
|
|
if (externalFilesDirs.length > 0) {
|
|
file = externalFilesDirs[0];
|
|
}
|
|
} else if ("external-cache-path".equals(name)) {
|
|
File[] externalCacheDirs = ContextCompat.getExternalCacheDirs(context);
|
|
if (externalCacheDirs.length > 0) {
|
|
file = externalCacheDirs[0];
|
|
}
|
|
} else if ("external-media-path".equals(name)) {
|
|
File[] externalMediaDirs = context.getExternalMediaDirs();
|
|
if (externalMediaDirs.length > 0) {
|
|
file = externalMediaDirs[0];
|
|
}
|
|
}
|
|
if (file != null) {
|
|
simplePathStrategy.addRoot(attributeValue, buildPath(file, attributeValue2));
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
throw new IllegalArgumentException("Missing android.support.FILE_PROVIDER_PATHS meta-data");
|
|
}
|
|
} else {
|
|
throw new IllegalArgumentException(a.t("Couldn't find meta-data for provider with authority ", str));
|
|
}
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public void attachInfo(@NonNull Context context, @NonNull ProviderInfo providerInfo) {
|
|
super.attachInfo(context, providerInfo);
|
|
if (providerInfo.exported) {
|
|
throw new SecurityException("Provider must not be exported");
|
|
} else if (providerInfo.grantUriPermissions) {
|
|
this.mStrategy = getPathStrategy(context, providerInfo.authority);
|
|
} else {
|
|
throw new SecurityException("Provider must grant uri permissions");
|
|
}
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public int delete(@NonNull Uri uri, @Nullable String str, @Nullable String[] strArr) {
|
|
return this.mStrategy.getFileForUri(uri).delete() ? 1 : 0;
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public String getType(@NonNull Uri uri) {
|
|
String mimeTypeFromExtension;
|
|
File fileForUri = this.mStrategy.getFileForUri(uri);
|
|
int lastIndexOf = fileForUri.getName().lastIndexOf(46);
|
|
return (lastIndexOf < 0 || (mimeTypeFromExtension = MimeTypeMap.getSingleton().getMimeTypeFromExtension(fileForUri.getName().substring(lastIndexOf + 1))) == null) ? "application/octet-stream" : mimeTypeFromExtension;
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public Uri insert(@NonNull Uri uri, ContentValues contentValues) {
|
|
throw new UnsupportedOperationException("No external inserts");
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public boolean onCreate() {
|
|
return true;
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String str) throws FileNotFoundException {
|
|
return ParcelFileDescriptor.open(this.mStrategy.getFileForUri(uri), modeToMode(str));
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public Cursor query(@NonNull Uri uri, @Nullable String[] strArr, @Nullable String str, @Nullable String[] strArr2, @Nullable String str2) {
|
|
int i;
|
|
File fileForUri = this.mStrategy.getFileForUri(uri);
|
|
if (strArr == null) {
|
|
strArr = COLUMNS;
|
|
}
|
|
String[] strArr3 = new String[strArr.length];
|
|
Object[] objArr = new Object[strArr.length];
|
|
int i2 = 0;
|
|
for (String str3 : strArr) {
|
|
if ("_display_name".equals(str3)) {
|
|
strArr3[i2] = "_display_name";
|
|
i = i2 + 1;
|
|
objArr[i2] = fileForUri.getName();
|
|
} else if ("_size".equals(str3)) {
|
|
strArr3[i2] = "_size";
|
|
i = i2 + 1;
|
|
objArr[i2] = Long.valueOf(fileForUri.length());
|
|
}
|
|
i2 = i;
|
|
}
|
|
String[] copyOf = copyOf(strArr3, i2);
|
|
Object[] copyOf2 = copyOf(objArr, i2);
|
|
MatrixCursor matrixCursor = new MatrixCursor(copyOf, 1);
|
|
matrixCursor.addRow(copyOf2);
|
|
return matrixCursor;
|
|
}
|
|
|
|
@Override // android.content.ContentProvider
|
|
public int update(@NonNull Uri uri, ContentValues contentValues, @Nullable String str, @Nullable String[] strArr) {
|
|
throw new UnsupportedOperationException("No external updates");
|
|
}
|
|
}
|