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PGP: Also encrypt using sender public key

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This commit is contained in:
James Booth 2016-03-29 21:24:37 +01:00
parent 18555ffcb4
commit 7b138b71db
3 changed files with 31 additions and 12 deletions
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39
src/pgp/gpg.c
View File

@ -593,7 +593,7 @@ p_gpg_sign(const char *const str, const char *const fp)
}
char*
p_gpg_encrypt(const char *const barejid, const char *const message)
p_gpg_encrypt(const char *const barejid, const char *const message, const char *const fp)
{
ProfPGPPubKeyId *pubkeyid = g_hash_table_lookup(pubkeys, barejid);
if (!pubkeyid) {
@ -607,6 +607,7 @@ p_gpg_encrypt(const char *const barejid, const char *const message)
keys[0] = NULL;
keys[1] = NULL;
keys[2] = NULL;
gpgme_ctx_t ctx;
gpgme_error_t error = gpgme_new(&ctx);
@ -615,16 +616,23 @@ p_gpg_encrypt(const char *const barejid, const char *const message)
return NULL;
}
gpgme_key_t key;
error = gpgme_get_key(ctx, pubkeyid->id, &key, 0);
if (error || key == NULL) {
log_error("GPG: Failed to get key. %s %s", gpgme_strsource(error), gpgme_strerror(error));
gpgme_key_t receiver_key;
error = gpgme_get_key(ctx, pubkeyid->id, &receiver_key, 0);
if (error || receiver_key == NULL) {
log_error("GPG: Failed to get receiver_key. %s %s", gpgme_strsource(error), gpgme_strerror(error));
gpgme_release(ctx);
return NULL;
}
keys[0] = receiver_key;
keys[0] = key;
gpgme_key_t sender_key = NULL;
error = gpgme_get_key(ctx, fp, &sender_key, 0);
if (error || sender_key == NULL) {
log_error("GPG: Failed to get sender_key. %s %s", gpgme_strsource(error), gpgme_strerror(error));
gpgme_release(ctx);
return NULL;
}
keys[1] = sender_key;
gpgme_data_t plain;
gpgme_data_new_from_mem(&plain, message, strlen(message), 1);
@ -636,7 +644,8 @@ p_gpg_encrypt(const char *const barejid, const char *const message)
error = gpgme_op_encrypt(ctx, keys, GPGME_ENCRYPT_ALWAYS_TRUST, plain, cipher);
gpgme_data_release(plain);
gpgme_release(ctx);
gpgme_key_unref(key);
gpgme_key_unref(receiver_key);
gpgme_key_unref(sender_key);
if (error) {
log_error("GPG: Failed to encrypt message. %s %s", gpgme_strsource(error), gpgme_strerror(error));
@ -691,19 +700,29 @@ p_gpg_decrypt(const char *const cipher)
gpgme_decrypt_result_t res = gpgme_op_decrypt_result(ctx);
if (res) {
GString *recipients_str = g_string_new("");
gpgme_recipient_t recipient = res->recipients;
if (recipient) {
while (recipient) {
gpgme_key_t key;
error = gpgme_get_key(ctx, recipient->keyid, &key, 1);
if (!error && key) {
const char *addr = gpgme_key_get_string_attr(key, GPGME_ATTR_EMAIL, NULL, 0);
if (addr) {
log_debug("GPG: Decrypted message for recipient: %s", addr);
g_string_append(recipients_str, addr);
}
gpgme_key_unref(key);
}
if (recipient->next) {
g_string_append(recipients_str, ", ");
}
recipient = recipient->next;
}
log_debug("GPG: Decrypted message for recipients: %s", recipients_str->str);
g_string_free(recipients_str, TRUE);
}
gpgme_release(ctx);

2
src/pgp/gpg.h
View File

@ -64,7 +64,7 @@ gboolean p_gpg_available(const char *const barejid);
const char* p_gpg_libver(void);
char* p_gpg_sign(const char *const str, const char *const fp);
void p_gpg_verify(const char *const barejid, const char *const sign);
char* p_gpg_encrypt(const char *const barejid, const char *const message);
char* p_gpg_encrypt(const char *const barejid, const char *const message, const char *const fp);
char* p_gpg_decrypt(const char *const cipher);
void p_gpg_free_decrypted(char *decrypted);
char* p_gpg_autocomplete_key(const char *const search_str);

2
src/xmpp/message.c
View File

@ -163,7 +163,7 @@ message_send_chat_pgp(const char *const barejid, const char *const msg)
ProfAccount *account = accounts_get_account(account_name);
if (account->pgp_keyid) {
Jid *jidp = jid_create(jid);
char *encrypted = p_gpg_encrypt(jidp->barejid, msg);
char *encrypted = p_gpg_encrypt(jidp->barejid, msg, account->pgp_keyid);
if (encrypted) {
message = stanza_create_message(ctx, id, jid, STANZA_TYPE_CHAT, "This message is encrypted.");
xmpp_stanza_t *x = xmpp_stanza_new(ctx);