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Use correct extension based on file contents.

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Bug: 180364535
Test: atest com.android.server.graphics.fonts
Test: atest ApkVerityTest
Test: atest UpdatableSystemFontTest
Test: atest FontManagerTest
Change-Id: Ia0e0822105868e47e7356a120ce20d8bf5d1e106
This commit is contained in:
Seigo Nonaka
2021-02-25 15:20:02 -08:00
parent 1c2df9c562
commit 9040d23fc7
4 changed files with 125 additions and 66 deletions
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17
graphics/java/android/graphics/fonts/FontFileUtil.java
View File

@@ -183,6 +183,23 @@ public class FontFileUtil {
return nIsPostScriptType1Font(buffer, index);
}
/**
* Analyze the file content and returns 1 if the font file is an OpenType collection file, 0 if
* the font file is a OpenType font file, -1 otherwise.
*/
public static int isCollectionFont(@NonNull ByteBuffer buffer) {
ByteBuffer copied = buffer.slice();
copied.order(ByteOrder.BIG_ENDIAN);
int magicNumber = copied.getInt(0);
if (magicNumber == TTC_TAG) {
return 1;
} else if (magicNumber == SFNT_VERSION_1 || magicNumber == SFNT_VERSION_OTTO) {
return 0;
} else {
return -1;
}
}
@FastNative
private static native long nGetFontRevision(@NonNull ByteBuffer buffer,
@IntRange(from = 0) int index);

19
services/core/java/com/android/server/graphics/fonts/FontManagerService.java
View File

@@ -31,6 +31,7 @@ import android.os.SharedMemory;
import android.os.ShellCallback;
import android.system.ErrnoException;
import android.text.FontConfig;
import android.text.TextUtils;
import android.util.AndroidException;
import android.util.IndentingPrintWriter;
import android.util.Slog;
@@ -148,10 +149,24 @@ public final class FontManagerService extends IFontManager.Stub {
/* package */ static class OtfFontFileParser implements UpdatableFontDir.FontFileParser {
@Override
public String getPostScriptName(File file) throws IOException {
public String getCanonicalFileName(File file) throws IOException {
ByteBuffer buffer = mmap(file);
try {
return FontFileUtil.getPostScriptName(buffer, 0);
String psName = FontFileUtil.getPostScriptName(buffer, 0);
int isType1Font = FontFileUtil.isPostScriptType1Font(buffer, 0);
int isCollection = FontFileUtil.isCollectionFont(buffer);
if (TextUtils.isEmpty(psName) || isType1Font == -1 || isCollection == -1) {
return null;
}
String extension;
if (isCollection == 1) {
extension = isType1Font == 1 ? ".otc" : ".ttc";
} else {
extension = isType1Font == 1 ? ".otf" : ".ttf";
}
return psName + extension;
} finally {
NioUtils.freeDirectBuffer(buffer);
}

56
services/core/java/com/android/server/graphics/fonts/UpdatableFontDir.java
View File

@@ -56,14 +56,12 @@ final class UpdatableFontDir {
private static final String TAG = "UpdatableFontDir";
private static final String RANDOM_DIR_PREFIX = "~~";
// TODO: Support .otf
private static final String ALLOWED_EXTENSION = ".ttf";
private static final String CONFIG_XML_FILE = "/data/fonts/config/config.xml";
/** Interface to mock font file access in tests. */
interface FontFileParser {
String getPostScriptName(File file) throws IOException;
String getCanonicalFileName(File file) throws IOException;
long getRevision(File file) throws IOException;
}
@@ -321,20 +319,20 @@ final class UpdatableFontDir {
FontManager.RESULT_ERROR_VERIFICATION_FAILURE,
"Failed to setup fs-verity.", e);
}
String postScriptName;
String canonicalFileName;
try {
postScriptName = mParser.getPostScriptName(tempNewFontFile);
canonicalFileName = mParser.getCanonicalFileName(tempNewFontFile);
} catch (IOException e) {
throw new SystemFontException(
FontManager.RESULT_ERROR_INVALID_FONT_FILE,
"Failed to read PostScript name from font file", e);
}
if (postScriptName == null) {
if (canonicalFileName == null) {
throw new SystemFontException(
FontManager.RESULT_ERROR_INVALID_FONT_NAME,
"Failed to read PostScript name from font file");
}
File newFontFile = new File(newDir, postScriptName + ALLOWED_EXTENSION);
File newFontFile = new File(newDir, canonicalFileName);
if (!mFsverityUtil.rename(tempNewFontFile, newFontFile)) {
throw new SystemFontException(
FontManager.RESULT_ERROR_FAILED_TO_WRITE_FONT_FILE,
@@ -380,20 +378,38 @@ final class UpdatableFontDir {
return dir;
}
private FontFileInfo lookupFontFileInfo(File file) {
String name = file.getName();
if (!name.endsWith(".ttf") && !name.endsWith(".otf") && !name.endsWith(".ttc")
&& !name.endsWith(".otc")) {
return null;
}
String key = name.substring(0, name.length() - 4);
return mFontFileInfoMap.get(key);
}
private void putFontFileInfo(FontFileInfo info) {
String name = info.getFile().getName();
// The file name in FontFileInfo is already validated. Thus, just strip last 4 chars.
String key = name.substring(0, name.length() - 4);
mFontFileInfoMap.put(key, info);
}
/**
* Add the given {@link FontFileInfo} to {@link #mFontFileInfoMap} if its font revision is
* higher than the currently used font file (either in {@link #mFontFileInfoMap} or {@link
* #mPreinstalledFontDirs}).
*/
private boolean addFileToMapIfNewer(FontFileInfo fontFileInfo, boolean deleteOldFile) {
String name = fontFileInfo.getFile().getName();
FontFileInfo existingInfo = mFontFileInfoMap.get(name);
FontFileInfo existingInfo = lookupFontFileInfo(fontFileInfo.getFile());
final boolean shouldAddToMap;
if (existingInfo == null) {
// We got a new updatable font. We need to check if it's newer than preinstalled fonts.
// Note that getPreinstalledFontRevision() returns -1 if there is no preinstalled font
// with 'name'.
shouldAddToMap = getPreinstalledFontRevision(name) < fontFileInfo.getRevision();
long preInstalledRev = getPreinstalledFontRevision(fontFileInfo.getFile().getName());
shouldAddToMap = preInstalledRev < fontFileInfo.getRevision();
} else {
shouldAddToMap = existingInfo.getRevision() < fontFileInfo.getRevision();
}
@@ -401,7 +417,7 @@ final class UpdatableFontDir {
if (deleteOldFile && existingInfo != null) {
FileUtils.deleteContentsAndDir(existingInfo.getRandomizedFontDir());
}
mFontFileInfoMap.put(name, fontFileInfo);
putFontFileInfo(fontFileInfo);
} else {
if (deleteOldFile) {
FileUtils.deleteContentsAndDir(fontFileInfo.getRandomizedFontDir());
@@ -464,15 +480,18 @@ final class UpdatableFontDir {
*/
private boolean validateFontFileName(File file) {
String fileName = file.getName();
String postScriptName = getPostScriptName(file);
return (postScriptName + ALLOWED_EXTENSION).equals(fileName);
String canonicalFileName = getCanonicalFileName(file);
if (canonicalFileName == null) {
return false;
}
return canonicalFileName.equals(fileName);
}
/** Returns the PostScript name of the given font file, or null. */
@Nullable
private String getPostScriptName(File file) {
private String getCanonicalFileName(File file) {
try {
return mParser.getPostScriptName(file);
return mParser.getCanonicalFileName(file);
} catch (IOException e) {
Slog.e(TAG, "Failed to read font file", e);
return null;
@@ -514,7 +533,7 @@ final class UpdatableFontDir {
List<FontConfig.Font> fontList = fontFamily.getFontList();
for (int i = 0; i < fontList.size(); i++) {
FontConfig.Font font = fontList.get(i);
FontFileInfo info = mFontFileInfoMap.get(font.getFile().getName());
FontFileInfo info = lookupFontFileInfo(font.getFile());
if (info == null) {
return null;
}
@@ -537,8 +556,9 @@ final class UpdatableFontDir {
Map<String, File> getFontFileMap() {
Map<String, File> map = new ArrayMap<>();
for (Map.Entry<String, FontFileInfo> entry : mFontFileInfoMap.entrySet()) {
map.put(entry.getKey(), entry.getValue().getFile());
for (int i = 0; i < mFontFileInfoMap.size(); ++i) {
File file = mFontFileInfoMap.valueAt(i).getFile();
map.put(file.getName(), file);
}
return map;
}

99
services/tests/servicestests/src/com/android/server/graphics/fonts/UpdatableFontDirTest.java
View File

@@ -68,7 +68,7 @@ public final class UpdatableFontDirTest {
*/
private static class FakeFontFileParser implements UpdatableFontDir.FontFileParser {
@Override
public String getPostScriptName(File file) throws IOException {
public String getCanonicalFileName(File file) throws IOException {
String content = FileUtils.readTextFile(file, 100, "");
return content.split(",")[0];
}
@@ -160,10 +160,10 @@ public final class UpdatableFontDirTest {
assertThat(dirForPreparation.getSystemFontConfig().getLastModifiedTimeMillis())
.isEqualTo(expectedModifiedDate);
dirForPreparation.update(Arrays.asList(
newFontUpdateRequest("foo,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar,4", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,4", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family name='foobar'>"
+ " <font>foo.ttf</font>"
+ " <font>bar.ttf</font>"
@@ -214,10 +214,10 @@ public final class UpdatableFontDirTest {
mConfigFile);
dirForPreparation.loadFontFileMap();
dirForPreparation.update(Arrays.asList(
newFontUpdateRequest("foo,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar,4", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,4", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family name='foobar'>"
+ " <font>foo.ttf</font>"
+ " <font>bar.ttf</font>"
@@ -246,10 +246,10 @@ public final class UpdatableFontDirTest {
mConfigFile);
dirForPreparation.loadFontFileMap();
dirForPreparation.update(Arrays.asList(
newFontUpdateRequest("foo,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar,4", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,4", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family name='foobar'>"
+ " <font>foo.ttf</font>"
+ " <font>bar.ttf</font>"
@@ -279,10 +279,10 @@ public final class UpdatableFontDirTest {
mConfigFile);
dirForPreparation.loadFontFileMap();
dirForPreparation.update(Arrays.asList(
newFontUpdateRequest("foo,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar,4", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,2", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,3", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,4", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family name='foobar'>"
+ " <font>foo.ttf</font>"
+ " <font>bar.ttf</font>"
@@ -332,14 +332,14 @@ public final class UpdatableFontDirTest {
mConfigFile);
dirForPreparation.loadFontFileMap();
dirForPreparation.update(Arrays.asList(
newFontUpdateRequest("foo,1", GOOD_SIGNATURE),
newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family name='foobar'>"
+ " <font>foo.ttf</font>"
+ "</family>")));
try {
dirForPreparation.update(Arrays.asList(
newFontUpdateRequest("foo,2", GOOD_SIGNATURE),
newFontUpdateRequest("bar,2", "Invalid signature"),
newFontUpdateRequest("foo.ttf,2", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,2", "Invalid signature"),
newAddFontFamilyRequest("<family name='foobar'>"
+ " <font>foo.ttf</font>"
+ " <font>bar.ttf</font>"
@@ -372,7 +372,7 @@ public final class UpdatableFontDirTest {
mConfigFile);
dir.loadFontFileMap();
dir.update(Collections.singletonList(newFontUpdateRequest("test,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("test.ttf,1", GOOD_SIGNATURE)));
assertThat(dir.getFontFileMap()).containsKey("test.ttf");
assertThat(parser.getRevision(dir.getFontFileMap().get("test.ttf"))).isEqualTo(1);
File fontFile = dir.getFontFileMap().get("test.ttf");
@@ -390,9 +390,9 @@ public final class UpdatableFontDirTest {
mConfigFile);
dir.loadFontFileMap();
dir.update(Collections.singletonList(newFontUpdateRequest("test,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("test.ttf,1", GOOD_SIGNATURE)));
Map<String, File> mapBeforeUpgrade = dir.getFontFileMap();
dir.update(Collections.singletonList(newFontUpdateRequest("test,2", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("test.ttf,2", GOOD_SIGNATURE)));
assertThat(dir.getFontFileMap()).containsKey("test.ttf");
assertThat(parser.getRevision(dir.getFontFileMap().get("test.ttf"))).isEqualTo(2);
assertThat(mapBeforeUpgrade).containsKey("test.ttf");
@@ -409,9 +409,10 @@ public final class UpdatableFontDirTest {
mConfigFile);
dir.loadFontFileMap();
dir.update(Collections.singletonList(newFontUpdateRequest("test,2", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("test.ttf,2", GOOD_SIGNATURE)));
try {
dir.update(Collections.singletonList(newFontUpdateRequest("test,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("test.ttf,1",
GOOD_SIGNATURE)));
fail("Expect SystemFontException");
} catch (FontManagerService.SystemFontException e) {
assertThat(e.getErrorCode()).isEqualTo(FontManager.RESULT_ERROR_DOWNGRADING);
@@ -430,8 +431,8 @@ public final class UpdatableFontDirTest {
mConfigFile);
dir.loadFontFileMap();
dir.update(Collections.singletonList(newFontUpdateRequest("foo,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("bar,2", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("bar.ttf,2", GOOD_SIGNATURE)));
assertThat(dir.getFontFileMap()).containsKey("foo.ttf");
assertThat(parser.getRevision(dir.getFontFileMap().get("foo.ttf"))).isEqualTo(1);
assertThat(dir.getFontFileMap()).containsKey("bar.ttf");
@@ -448,8 +449,8 @@ public final class UpdatableFontDirTest {
dir.loadFontFileMap();
dir.update(Arrays.asList(
newFontUpdateRequest("foo,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar,2", GOOD_SIGNATURE)));
newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,2", GOOD_SIGNATURE)));
assertThat(dir.getFontFileMap()).containsKey("foo.ttf");
assertThat(parser.getRevision(dir.getFontFileMap().get("foo.ttf"))).isEqualTo(1);
assertThat(dir.getFontFileMap()).containsKey("bar.ttf");
@@ -467,7 +468,8 @@ public final class UpdatableFontDirTest {
try {
dir.update(
Collections.singletonList(newFontUpdateRequest("test,1", "Invalid signature")));
Collections.singletonList(newFontUpdateRequest("test.ttf,1",
"Invalid signature")));
fail("Expect SystemFontException");
} catch (FontManagerService.SystemFontException e) {
assertThat(e.getErrorCode())
@@ -480,14 +482,15 @@ public final class UpdatableFontDirTest {
public void installFontFile_olderThanPreinstalledFont() throws Exception {
FakeFontFileParser parser = new FakeFontFileParser();
FakeFsverityUtil fakeFsverityUtil = new FakeFsverityUtil();
FileUtils.stringToFile(new File(mPreinstalledFontDirs.get(0), "test.ttf"), "test,1");
FileUtils.stringToFile(new File(mPreinstalledFontDirs.get(0), "test.ttf"), "test.ttf,1");
UpdatableFontDir dir = new UpdatableFontDir(
mUpdatableFontFilesDir, mPreinstalledFontDirs, parser, fakeFsverityUtil,
mConfigFile);
dir.loadFontFileMap();
try {
dir.update(Collections.singletonList(newFontUpdateRequest("test,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("test.ttf,1",
GOOD_SIGNATURE)));
fail("Expect SystemFontException");
} catch (FontManagerService.SystemFontException e) {
assertThat(e.getErrorCode()).isEqualTo(FontManager.RESULT_ERROR_DOWNGRADING);
@@ -500,7 +503,7 @@ public final class UpdatableFontDirTest {
long expectedModifiedDate = 1234567890;
FakeFontFileParser parser = new FakeFontFileParser();
FakeFsverityUtil fakeFsverityUtil = new FakeFsverityUtil();
FileUtils.stringToFile(new File(mPreinstalledFontDirs.get(0), "test.ttf"), "test,1");
FileUtils.stringToFile(new File(mPreinstalledFontDirs.get(0), "test.ttf"), "test.ttf,1");
File readonlyDir = new File(mCacheDir, "readonly");
assertThat(readonlyDir.mkdir()).isTrue();
@@ -519,7 +522,8 @@ public final class UpdatableFontDirTest {
try {
dir.update(
Collections.singletonList(newFontUpdateRequest("test,2", GOOD_SIGNATURE)));
Collections.singletonList(newFontUpdateRequest("test.ttf,2",
GOOD_SIGNATURE)));
} catch (FontManagerService.SystemFontException e) {
assertThat(e.getErrorCode())
.isEqualTo(FontManager.RESULT_ERROR_FAILED_UPDATE_CONFIG);
@@ -539,7 +543,7 @@ public final class UpdatableFontDirTest {
mUpdatableFontFilesDir, mPreinstalledFontDirs,
new UpdatableFontDir.FontFileParser() {
@Override
public String getPostScriptName(File file) throws IOException {
public String getCanonicalFileName(File file) throws IOException {
return null;
}
@@ -551,7 +555,8 @@ public final class UpdatableFontDirTest {
dir.loadFontFileMap();
try {
dir.update(Collections.singletonList(newFontUpdateRequest("foo,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("foo.ttf,1",
GOOD_SIGNATURE)));
fail("Expect SystemFontException");
} catch (FontManagerService.SystemFontException e) {
assertThat(e.getErrorCode())
@@ -567,7 +572,7 @@ public final class UpdatableFontDirTest {
mUpdatableFontFilesDir, mPreinstalledFontDirs,
new UpdatableFontDir.FontFileParser() {
@Override
public String getPostScriptName(File file) throws IOException {
public String getCanonicalFileName(File file) throws IOException {
throw new IOException();
}
@@ -579,7 +584,8 @@ public final class UpdatableFontDirTest {
dir.loadFontFileMap();
try {
dir.update(Collections.singletonList(newFontUpdateRequest("foo,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("foo.ttf,1",
GOOD_SIGNATURE)));
fail("Expect SystemFontException");
} catch (FontManagerService.SystemFontException e) {
assertThat(e.getErrorCode())
@@ -615,7 +621,8 @@ public final class UpdatableFontDirTest {
dir.loadFontFileMap();
try {
dir.update(Collections.singletonList(newFontUpdateRequest("foo,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("foo.ttf,1",
GOOD_SIGNATURE)));
fail("Expect SystemFontException");
} catch (FontManagerService.SystemFontException e) {
assertThat(e.getErrorCode())
@@ -633,11 +640,11 @@ public final class UpdatableFontDirTest {
mConfigFile);
dir.loadFontFileMap();
dir.update(Collections.singletonList(newFontUpdateRequest("foo,1", GOOD_SIGNATURE)));
dir.update(Collections.singletonList(newFontUpdateRequest("foo.ttf,1", GOOD_SIGNATURE)));
try {
dir.update(Arrays.asList(
newFontUpdateRequest("foo,2", GOOD_SIGNATURE),
newFontUpdateRequest("bar,2", "Invalid signature")));
newFontUpdateRequest("foo.ttf,2", GOOD_SIGNATURE),
newFontUpdateRequest("bar.ttf,2", "Invalid signature")));
fail("Batch update with invalid signature should fail");
} catch (FontManagerService.SystemFontException e) {
// Expected
@@ -657,7 +664,7 @@ public final class UpdatableFontDirTest {
dir.loadFontFileMap();
dir.update(Arrays.asList(
newFontUpdateRequest("test,1", GOOD_SIGNATURE),
newFontUpdateRequest("test.ttf,1", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family name='test'>"
+ " <font>test.ttf</font>"
+ "</family>")));
@@ -680,7 +687,7 @@ public final class UpdatableFontDirTest {
try {
dir.update(Arrays.asList(
newFontUpdateRequest("test,1", GOOD_SIGNATURE),
newFontUpdateRequest("test.ttf,1", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family lang='en'>"
+ " <font>test.ttf</font>"
+ "</family>")));
@@ -722,7 +729,7 @@ public final class UpdatableFontDirTest {
assertNamedFamilyExists(dir.getSystemFontConfig(), "monospace");
dir.update(Arrays.asList(
newFontUpdateRequest("test,1", GOOD_SIGNATURE),
newFontUpdateRequest("test.ttf,1", GOOD_SIGNATURE),
// Updating an existing font family.
newAddFontFamilyRequest("<family name='monospace'>"
+ " <font>test.ttf</font>"
@@ -755,7 +762,7 @@ public final class UpdatableFontDirTest {
assertThat(firstFontFamily.getName()).isNotEmpty();
dir.update(Arrays.asList(
newFontUpdateRequest("test,1", GOOD_SIGNATURE),
newFontUpdateRequest("test.ttf,1", GOOD_SIGNATURE),
newAddFontFamilyRequest("<family name='" + firstFontFamily.getName() + "'>"
+ " <font>test.ttf</font>"
+ "</family>")));