android: Set the FONTCONFIG_FILE envvar to the fonts.conf (if exists).

Change-Id: Ic9fd97a2ff8a6d96ffcc7ad300ef30201d786528
Reviewed-on: https://gerrit.libreoffice.org/67876
Tested-by: Jenkins
Reviewed-by: Jan Holesovsky <kendy@collabora.com>

android/Bootstrap/src/org/libreoffice/kit/LibreOfficeKit.java

@@ -67,19 +67,6 @@ public final class LibreOfficeKit
         String cacheDir = activity.getApplication().getCacheDir().getAbsolutePath();
         String apkFile = activity.getApplication().getPackageResourcePath();
 
-        // If there is a fonts.conf file in the apk that can be extracted, automatically
-        // set the FONTCONFIG_FILE env var.
-        InputStream inputStream;
-        try {
-            inputStream = activity.getAssets().open("unpack/etc/fonts/fonts.conf");
-        } catch (java.io.IOException exception) {
-            inputStream = null;
-        }
-
-        if (inputStream != null) {
-            putenv("FONTCONFIG_FILE=" + dataDir + "/etc/fonts/fonts.conf");
-        }
-
         if (!initializeNative(dataDir, cacheDir, apkFile, mgr)) {
             Log.e(LOGTAG, "Initialize native failed!");
             return;

sal/android/libreofficekit-jni.c

@@ -74,6 +74,9 @@ jboolean libreofficekit_initialize(JNIEnv* env,
     const char *cacheDirPath;
     const char *apkFilePath;
 
+    const char *fontsConf = "/etc/fonts/fonts.conf";
+    char *fontsConfPath;
+
     setenv("OOO_DISABLE_RECOVERY", "1", 1);
 
     native_asset_manager = AAssetManager_fromJava(env, assetManager);
@@ -89,6 +92,18 @@ jboolean libreofficekit_initialize(JNIEnv* env,
     // TMPDIR is used by osl_getTempDirURL()
     setenv("TMPDIR", cache_dir, 1);
 
+    fontsConfPath = malloc(strlen(data_dir) + sizeof(fontsConf));
+    strcpy(fontsConfPath, data_dir);
+    strcat(fontsConfPath, fontsConf);
+
+    fd = open(fontsConfPath, O_RDONLY);
+    if (fd != -1) {
+        close(fd);
+        LOGI("Setting FONTCONFIG_FILE to %s", fontsConfPath);
+        setenv("FONTCONFIG_FILE", fontsConfPath, 1);
+    }
+    free(fontsConfPath);
+
     apkFilePath =  (*env)->GetStringUTFChars(env, apkFile, NULL);
 
     fd = open(apkFilePath, O_RDONLY);