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ContentResolver: implement query() support for file:// URIs

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This is needed for the subscription import feature in NewPipe.
This commit is contained in:
Julian Winkler 2025-02-22 09:35:03 +01:00
parent 899805f23f
commit f20bb6cb1c
4 changed files with 76 additions and 2 deletions
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1
meson.build
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@ -89,6 +89,7 @@ libtranslationlayer_so = shared_library('translation_layer_main', [
'src/api-impl-jni/audio/android_media_AudioTrack.c',
'src/api-impl-jni/audio/android_media_SoundPool.c',
'src/api-impl-jni/content/android_content_ClipboardManager.c',
'src/api-impl-jni/content/android_content_ContentResolver.c',
'src/api-impl-jni/content/android_content_Context.c',
'src/api-impl-jni/content/android_content_res_XmlBlock.c',
'src/api-impl-jni/database/android_database_SQLiteCommon.c',

42
src/api-impl-jni/content/android_content_ContentResolver.c Normal file
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@ -0,0 +1,42 @@
#include <gio/gio.h>
#include <string.h>
#include "../defines.h"
#include "../generated_headers/android_content_ContentResolver.h"
JNIEXPORT void JNICALL Java_android_content_ContentResolver_native_1query_1file_1info(JNIEnv *env, jclass clazz, jstring path_jstr, jobjectArray attributes, jobjectArray results)
{
const char *path = (*env)->GetStringUTFChars(env, path_jstr, NULL);
GFile *file = g_file_new_for_path(path);
GString *attrs = g_string_new("");
for (int i = 0; i < (*env)->GetArrayLength(env, attributes); i++,g_string_append(attrs, ",")) {
const char *attr = (*env)->GetStringUTFChars(env, (*env)->GetObjectArrayElement(env, attributes, i), NULL);
if (!strcmp(attr, "_display_name")) {
g_string_append(attrs, G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME);
} else if (!strcmp(attr, "mime_type")) {
g_string_append(attrs, G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE);
}
(*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, attributes, i), attr);
}
GError *error = NULL;
GFileInfo *file_info = g_file_query_info(file, attrs->str, G_FILE_QUERY_INFO_NONE, NULL, &error);
g_string_free(attrs, TRUE);
if (error) {
g_error_free(error);
(*env)->ReleaseStringUTFChars(env, path_jstr, path);
return;
}
for (int i = 0; i < (*env)->GetArrayLength(env, attributes); i++) {
const char *attr = (*env)->GetStringUTFChars(env, (*env)->GetObjectArrayElement(env, attributes, i), NULL);
if (!strcmp(attr, "_display_name")) {
jstring name = _JSTRING(g_file_info_get_attribute_string(file_info, G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME));
(*env)->SetObjectArrayElement(env, results, i, name);
} else if (!strcmp(attr, "mime_type")) {
jstring mime_type = _JSTRING(g_content_type_get_mime_type(g_file_info_get_content_type(file_info)));
(*env)->SetObjectArrayElement(env, results, i, mime_type);
}
(*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, attributes, i), attr);
}
g_object_unref(file_info);
(*env)->ReleaseStringUTFChars(env, path_jstr, path);
}

21
src/api-impl-jni/generated_headers/android_content_ContentResolver.h Normal file
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@ -0,0 +1,21 @@
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class android_content_ContentResolver */
#ifndef _Included_android_content_ContentResolver
#define _Included_android_content_ContentResolver
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: android_content_ContentResolver
* Method: native_query_file_info
* Signature: (Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/Object;)V
*/
JNIEXPORT void JNICALL Java_android_content_ContentResolver_native_1query_1file_1info
(JNIEnv *, jclass, jstring, jobjectArray, jobjectArray);
#ifdef __cplusplus
}
#endif
#endif

14
src/api-impl/android/content/ContentResolver.java
View file

@ -6,6 +6,7 @@ import java.io.FileNotFoundException;
import android.accounts.Account;
import android.database.ContentObserver;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.CancellationSignal;
@ -40,10 +41,17 @@ public class ContentResolver {
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
ContentProvider provider = ContentProvider.providers.get(uri.getAuthority());
if (provider != null)
if (provider != null) {
return provider.query(uri, projection, selection, selectionArgs, sortOrder);
else
} else if ("file".equals(uri.getScheme())) {
MatrixCursor cursor = new MatrixCursor(projection);
Object[] row = new Object[projection.length];
native_query_file_info(uri.getPath(), projection, row);
cursor.addRow(row);
return cursor;
} else {
return null;
}
}
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder, CancellationSignal cancellationSignal) {
@ -94,4 +102,6 @@ public class ContentResolver {
public static boolean isSyncActive(Account account, String authority) {
return false;
}
private static native void native_query_file_info(String path, String[] attributes, Object[] result);
}