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using Gee;
using GPG;
namespace GPGHelper {
public static string encrypt_armor(string plain, Key[] keys, EncryptFlags flags) throws GLib.Error {
global_mutex.lock();
Data plain_data = Data.create_from_memory(plain.data, false);
Context context = Context.create();
context.set_armor(true);
Data enc_data = context.op_encrypt(keys, flags, plain_data);
global_mutex.unlock();
return get_string_from_data(enc_data);
}
public static string decrypt(string encr) throws GLib.Error {
global_mutex.lock();
Data enc_data = Data.create_from_memory(encr.data, false);
Context context = Context.create();
Data dec_data = context.op_decrypt(enc_data);
global_mutex.unlock();
return get_string_from_data(dec_data);
}
public static string sign(string plain, SigMode mode) throws GLib.Error {
global_mutex.lock();
Data plain_data = Data.create_from_memory(plain.data, false);
Context context = Context.create();
Data signed_data = context.op_sign(plain_data, mode);
global_mutex.unlock();
return get_string_from_data(signed_data);
}
public static string? get_sign_key(string signature, string? text) throws GLib.Error {
global_mutex.lock();
Data sig_data = Data.create_from_memory(signature.data, false);
Data text_data;
if (text != null) {
text_data = Data.create_from_memory(text.data, false);
} else {
text_data = Data.create();
}
Context context = Context.create();
context.op_verify(sig_data, text_data);
VerifyResult* verify_res = context.op_verify_result();
if (verify_res == null || verify_res.signatures == null) return null;
global_mutex.unlock();
return verify_res.signatures.fpr;
}
public static Gee.List<Key> get_keylist(string? pattern = null, bool secret_only = false) throws GLib.Error {
Gee.List<Key> keys = new ArrayList<Key>();
Context context = Context.create();
context.op_keylist_start(pattern, secret_only ? 1 : 0);
try {
while (true) {
Key key = context.op_keylist_next();
keys.add(key);
}
} catch (Error e) {
if (e.code != GPGError.ErrorCode.EOF) throw e;
}
return keys;
}
public static Key? get_public_key(string sig) throws GLib.Error {
global_mutex.lock();
Context context = Context.create();
Key key = context.get_key(sig, false);
global_mutex.unlock();
return key;
}
private static string get_string_from_data(Data data) {
data.seek(0);
uint8[] buf = new uint8[256];
ssize_t? len = null;
string res = "";
do {
len = data.read(buf);
if (len > 0) {
string part = (string) buf;
part = part.substring(0, (long) len);
res += part;
}
} while (len > 0);
return res;
}
}
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