parent
e327a88898
commit
49bcbdaa51
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@ -313,6 +313,15 @@ public class FileManager : StreamInteractionModule, Object {
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file_transfer.size = (int)file_meta.size;
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file_transfer.info = info;
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var encryption = file_provider.get_encryption(file_transfer, receive_data, file_meta);
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if (encryption != Encryption.NONE) file_transfer.encryption = encryption;
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foreach (FileDecryptor decryptor in file_decryptors) {
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if (decryptor.can_decrypt_file(conversation, file_transfer, receive_data)) {
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file_transfer.encryption = decryptor.get_encryption();
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}
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}
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file_transfer.persist(db);
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if (is_sender_trustworthy(file_transfer, conversation)) {
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@ -389,6 +398,7 @@ public class HttpFileReceiveData : FileReceiveData {
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public interface FileProvider : Object {
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public signal void file_incoming(string info, Jid from, DateTime time, DateTime local_time, Conversation conversation, FileReceiveData receive_data, FileMeta file_meta);
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public abstract Encryption get_encryption(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta);
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public abstract FileMeta get_file_meta(FileTransfer file_transfer) throws FileReceiveError;
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public abstract FileReceiveData? get_file_receive_data(FileTransfer file_transfer);
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@ -419,6 +429,7 @@ public interface FileEncryptor : Object {
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}
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public interface FileDecryptor : Object {
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public abstract Encryption get_encryption();
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public abstract FileReceiveData prepare_get_meta_info(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data);
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public abstract FileMeta prepare_download_file(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta);
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public abstract bool can_decrypt_file(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data);
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@ -11,7 +11,7 @@ public interface JingleFileEncryptionHelper : Object {
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public abstract async bool can_encrypt(Conversation conversation, FileTransfer file_transfer, Jid? full_jid = null);
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public abstract string? get_precondition_name(Conversation conversation, FileTransfer file_transfer);
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public abstract Object? get_precondition_options(Conversation conversation, FileTransfer file_transfer);
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public abstract FileMeta complete_meta(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta, Xmpp.Xep.JingleFileTransfer.FileTransfer jingle_transfer);
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public abstract Encryption get_encryption(Xmpp.Xep.JingleFileTransfer.FileTransfer jingle_transfer);
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}
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public class JingleFileEncryptionHelperTransferOnly : JingleFileEncryptionHelper, Object {
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@ -27,8 +27,8 @@ public class JingleFileEncryptionHelperTransferOnly : JingleFileEncryptionHelper
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public Object? get_precondition_options(Conversation conversation, FileTransfer file_transfer) {
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return null;
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}
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public FileMeta complete_meta(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta, Xmpp.Xep.JingleFileTransfer.FileTransfer jingle_transfer) {
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return file_meta;
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public Encryption get_encryption(Xmpp.Xep.JingleFileTransfer.FileTransfer jingle_transfer) {
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return Encryption.NONE;
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}
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}
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@ -79,15 +79,19 @@ public class JingleFileProvider : FileProvider, Object {
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}
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public async FileMeta get_meta_info(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) throws FileReceiveError {
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return file_meta;
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}
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public Encryption get_encryption(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) {
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Xmpp.Xep.JingleFileTransfer.FileTransfer? jingle_file_transfer = file_transfers[file_transfer.info];
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if (jingle_file_transfer == null) {
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throw new FileReceiveError.DOWNLOAD_FAILED("Transfer data not available anymore");
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}
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FileMeta meta = file_meta;
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foreach (JingleFileEncryptionHelper helper in JingleFileHelperRegistry.instance.encryption_helpers.values) {
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meta = helper.complete_meta(file_transfer, receive_data, meta, jingle_file_transfer);
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var encryption = helper.get_encryption(jingle_file_transfer);
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if (encryption != Encryption.NONE) return encryption;
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}
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return meta;
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return Encryption.NONE;
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}
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public async InputStream download(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) throws FileReceiveError {
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@ -97,9 +101,6 @@ public class JingleFileProvider : FileProvider, Object {
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if (jingle_file_transfer == null) {
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throw new FileReceiveError.DOWNLOAD_FAILED("Transfer data not available anymore");
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}
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foreach (JingleFileEncryptionHelper helper in JingleFileHelperRegistry.instance.encryption_helpers.values) {
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helper.complete_meta(file_transfer, receive_data, file_meta, jingle_file_transfer);
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}
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try {
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jingle_file_transfer.accept(stream);
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} catch (IOError e) {
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@ -92,6 +92,10 @@ public class FileProvider : Dino.FileProvider, Object {
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return file_meta;
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}
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public Encryption get_encryption(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) {
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return Encryption.NONE;
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}
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public async InputStream download(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) throws FileReceiveError {
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HttpFileReceiveData? http_receive_data = receive_data as HttpFileReceiveData;
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if (http_receive_data == null) assert(false);
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@ -13,6 +13,10 @@ public class OmemoFileDecryptor : FileDecryptor, Object {
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private Regex url_regex = /^aesgcm:\/\/(.*)#(([A-Fa-f0-9]{2}){48}|([A-Fa-f0-9]{2}){44})$/;
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public Encryption get_encryption() {
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return Encryption.OMEMO;
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}
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public FileReceiveData prepare_get_meta_info(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data) {
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HttpFileReceiveData? http_receive_data = receive_data as HttpFileReceiveData;
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if (http_receive_data == null) assert(false);
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@ -42,12 +42,12 @@ public class EncryptionHelper : JingleFileEncryptionHelper, Object {
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return new Xep.Jet.Options(Omemo.NS_URI, AES_128_GCM_URI);
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}
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public FileMeta complete_meta(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta, Xmpp.Xep.JingleFileTransfer.FileTransfer jingle_transfer) {
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public Encryption get_encryption(Xmpp.Xep.JingleFileTransfer.FileTransfer jingle_transfer) {
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Xep.Jet.SecurityParameters? security = jingle_transfer.security as Xep.Jet.SecurityParameters;
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if (security != null && security.encoding.get_type_uri() == Omemo.NS_URI) {
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file_transfer.encryption = Encryption.OMEMO;
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return Encryption.OMEMO;
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}
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return file_meta;
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return Encryption.NONE;
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}
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}
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}
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}
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@ -4,6 +4,10 @@ namespace Dino.Plugins.OpenPgp {
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public class PgpFileDecryptor : FileDecryptor, Object {
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public Encryption get_encryption() {
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return Encryption.PGP;
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}
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public FileReceiveData prepare_get_meta_info(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data) {
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return receive_data;
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}
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Reference in a new issue