/** Write the signature file to the given output stream. */
private void generateSignatureFile(Manifest manifest, OutputStream out)
throws IOException, GeneralSecurityException {
out.write(("Signature-Version: 1.0\r\n").getBytes());
out.write(("Created-By: 1.0 (Android SignApk)\r\n").getBytes());
// BASE64Encoder base64 = new BASE64Encoder();
MessageDigest md = MessageDigest.getInstance("SHA1");
PrintStream print =
new PrintStream(new DigestOutputStream(new ByteArrayOutputStream(), md), true, "UTF-8");
// Digest of the entire manifest
manifest.write(print);
print.flush();
out.write(("SHA1-Digest-Manifest: " + Base64.encode(md.digest()) + "\r\n\r\n").getBytes());
Map<String, Attributes> entries = manifest.getEntries();
for (Map.Entry<String, Attributes> entry : entries.entrySet()) {
if (canceled) break;
progressHelper.progress(ProgressEvent.PRORITY_NORMAL, "Generating signature file");
// Digest of the manifest stanza for this entry.
String nameEntry = "Name: " + entry.getKey() + "\r\n";
print.print(nameEntry);
for (Map.Entry<Object, Object> att : entry.getValue().entrySet()) {
print.print(att.getKey() + ": " + att.getValue() + "\r\n");
}
print.print("\r\n");
print.flush();
out.write(nameEntry.getBytes());
out.write(("SHA1-Digest: " + Base64.encode(md.digest()) + "\r\n\r\n").getBytes());
}
}
/** Add the SHA1 of every file to the manifest, creating it if necessary. */
private Manifest addDigestsToManifest(Map<String, ZioEntry> entries)
throws IOException, GeneralSecurityException {
Manifest input = null;
ZioEntry manifestEntry = entries.get(JarFile.MANIFEST_NAME);
if (manifestEntry != null) {
input = new Manifest();
input.read(manifestEntry.getInputStream());
}
Manifest output = new Manifest();
Attributes main = output.getMainAttributes();
if (input != null) {
main.putAll(input.getMainAttributes());
} else {
main.putValue("Manifest-Version", "1.0");
main.putValue("Created-By", "1.0 (Android SignApk)");
}
// BASE64Encoder base64 = new BASE64Encoder();
MessageDigest md = MessageDigest.getInstance("SHA1");
byte[] buffer = new byte[512];
int num;
// We sort the input entries by name, and add them to the
// output manifest in sorted order. We expect that the output
// map will be deterministic.
TreeMap<String, ZioEntry> byName = new TreeMap<String, ZioEntry>();
byName.putAll(entries);
boolean debug = getLogger().isDebugEnabled();
if (debug) getLogger().debug("Manifest entries:");
for (ZioEntry entry : byName.values()) {
if (canceled) break;
String name = entry.getName();
if (debug) getLogger().debug(name);
if (!entry.isDirectory()
&& !name.equals(JarFile.MANIFEST_NAME)
&& !name.equals(CERT_SF_NAME)
&& !name.equals(CERT_RSA_NAME)
&& (stripPattern == null || !stripPattern.matcher(name).matches())) {
progressHelper.progress(ProgressEvent.PRORITY_NORMAL, "Generating manifest");
InputStream data = entry.getInputStream();
while ((num = data.read(buffer)) > 0) {
md.update(buffer, 0, num);
}
Attributes attr = null;
if (input != null) {
java.util.jar.Attributes inAttr = input.getAttributes(name);
if (inAttr != null) attr = new Attributes(inAttr);
}
if (attr == null) attr = new Attributes();
attr.putValue("SHA1-Digest", Base64.encode(md.digest()));
output.getEntries().put(name, attr);
}
}
return output;
}
