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OX: XEP-0373: OpenPGP for XMPP - Version 0.5.0 (2020-06-19)
Discovering Public Keys via PEP * 4.3 Discovering Public Keys of a User * 4.4 Requesting Public Keys * Import Public Keys into GnuPG's local keyring. Issue: #1331
This commit is contained in:
DebXWoody
committed by
Michael Vetter
Michael Vetter
parent
ec6b61c2bb
commit
0552e50c78
232
src/xmpp/ox.c
232
src/xmpp/ox.c
@@ -44,6 +44,10 @@
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#ifdef HAVE_LIBGPGME
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static void _ox_metadata_node__public_key(const char* const fingerprint);
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static int _ox_metadata_result(xmpp_conn_t* const conn, xmpp_stanza_t* const stanza, void* const userdata);
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static void _ox_request_public_key(const char* const jid, const char* const fingerprint);
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static int _ox_public_key_result(xmpp_conn_t* const conn, xmpp_stanza_t* const stanza, void* const userdata);
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/*!
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* \brief Current Date and Time.
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@@ -62,7 +66,7 @@ static char* _gettimestamp();
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<pre>
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<iq type='set' from='juliet@example.org/balcony' id='publish1'>
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<pubsub xmlns='http://jabber.org/protocol/pubsub'>
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<publish node='urn:xmpp:openpgp:0:public-keys:1357B01865B2503C18453D208CAC2A9678548E35'>
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<publish node='urn:xmpp:openpgp:0:public-keys:123456789ABCDEF1234567891238484848484848'>
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<item id='2020-01-21T10:46:21Z'>
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<pubkey xmlns='urn:xmpp:openpgp:0'>
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<data>
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@@ -138,6 +142,56 @@ ox_announce_public_key(const char* const filename)
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return TRUE;
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}
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/*!
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* <pre>
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<iq from='romeo@example.org/orchard'
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to='juliet@example.org'
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type='get'
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id='getmeta'>
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<pubsub xmlns='http://jabber.org/protocol/pubsub'>
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<items node='urn:xmpp:openpgp:0:public-keys'/>
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</pubsub>
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</iq>
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* </pre>
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*
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*/
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void
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ox_discover_public_key(const char* const jid)
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{
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assert(jid);
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log_info("Discovering Public Key for %s", jid);
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cons_show("Discovering Public Key for %s", jid);
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// iq
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xmpp_ctx_t* const ctx = connection_get_ctx();
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char* id = xmpp_uuid_gen(ctx);
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xmpp_stanza_t* iq = xmpp_iq_new(ctx, STANZA_TYPE_GET, id);
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xmpp_stanza_set_from(iq, xmpp_conn_get_jid(connection_get_conn()));
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xmpp_stanza_set_to(iq, jid);
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// pubsub
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xmpp_stanza_t* pubsub = xmpp_stanza_new(ctx);
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xmpp_stanza_set_name(pubsub, STANZA_NAME_PUBSUB);
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xmpp_stanza_set_ns(pubsub, XMPP_FEATURE_PUBSUB);
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// items
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xmpp_stanza_t* items = xmpp_stanza_new(ctx);
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xmpp_stanza_set_name(items, STANZA_NAME_ITEMS);
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xmpp_stanza_set_attribute(items, STANZA_ATTR_NODE, STANZA_NS_OPENPGP_0_PUBLIC_KEYS);
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xmpp_stanza_add_child(pubsub, items);
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xmpp_stanza_add_child(iq, pubsub);
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xmpp_id_handler_add(connection_get_conn(), _ox_metadata_result, id, strdup(jid));
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xmpp_send(connection_get_conn(), iq);
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}
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void
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ox_request_public_key(const char* const jid, const char* const fingerprint)
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{
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_ox_request_public_key(jid, fingerprint);
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}
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/*!
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*
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*
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@@ -149,11 +203,11 @@ ox_announce_public_key(const char* const filename)
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<item>
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<public-keys-list xmlns='urn:xmpp:openpgp:0'>
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<pubkey-metadata
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v4-fingerprint='1357B01865B2503C18453D208CAC2A9678548E35'
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v4-fingerprint='1234512345678122ABCDE2222222222222222222'
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date='2018-03-01T15:26:12Z'
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/>
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<pubkey-metadata
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v4-fingerprint='67819B343B2AB70DED9320872C6464AF2A8E4C02'
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v4-fingerprint='1234ABCD1234409865ABCD234482728939483472'
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date='1953-05-16T12:00:00Z'
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/>
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</public-keys-list>
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@@ -205,6 +259,178 @@ _ox_metadata_node__public_key(const char* const fingerprint)
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xmpp_send(connection_get_conn(), iq);
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}
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static int
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_ox_metadata_result(xmpp_conn_t* const conn, xmpp_stanza_t* const stanza, void* const userdata)
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{
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log_debug("OX: Processing result %s's meatadata.", (char*)userdata);
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if (g_strcmp0(xmpp_stanza_get_type(stanza), "result") != 0) {
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cons_show("OX: Fehler");
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return FALSE;
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}
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// pubsub
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xmpp_stanza_t* pubsub = stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_PUBSUB, XMPP_FEATURE_PUBSUB);
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if (!pubsub) {
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cons_show("OX: Fehler - Kein pubsub");
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return FALSE;
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}
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xmpp_stanza_t* items = xmpp_stanza_get_child_by_name(pubsub, STANZA_NAME_ITEMS);
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if (!items) {
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cons_show("OX: Fehler - Kein items");
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return FALSE;
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}
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xmpp_stanza_t* item = xmpp_stanza_get_child_by_name(items, STANZA_NAME_ITEM);
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if (!item) {
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cons_show("OX: Fehler - Kein item");
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return FALSE;
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}
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xmpp_stanza_t* publickeyslist = stanza_get_child_by_name_and_ns(item, STANZA_NAME_PUBLIC_KEYS_LIST, STANZA_NS_OPENPGP_0);
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if (!publickeyslist) {
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cons_show("OX: Fehler - Kein publickeyslist");
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return FALSE;
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}
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xmpp_stanza_t* pubkeymetadata = xmpp_stanza_get_children(publickeyslist);
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while (pubkeymetadata) {
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const char* fingerprint = xmpp_stanza_get_attribute(pubkeymetadata, STANZA_ATTR_V4_FINGERPRINT);
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cons_show(fingerprint);
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pubkeymetadata = xmpp_stanza_get_next(pubkeymetadata);
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}
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return FALSE;
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}
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/*!
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*
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* <pre>
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<iq from='romeo@example.org/orchard'
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to='juliet@example.org'
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type='get'
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id='getpub'>
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<pubsub xmlns='http://jabber.org/protocol/pubsub'>
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<items node='urn:xmpp:openpgp:0:public-keys:1234567890ABCDF12349ABCD1293848292983833'
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max_items='1'/>
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</pubsub>
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</iq>
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* </pre>
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*/
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void
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_ox_request_public_key(const char* const jid, const char* const fingerprint)
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{
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assert(jid);
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assert(fingerprint);
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assert(strlen(fingerprint) == 40);
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cons_show("Requesting Public Key %s for %s", fingerprint, jid);
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log_info("OX: Request %s's public key %s.", jid, fingerprint);
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// iq
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xmpp_ctx_t* const ctx = connection_get_ctx();
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char* id = xmpp_uuid_gen(ctx);
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xmpp_stanza_t* iq = xmpp_iq_new(ctx, STANZA_TYPE_GET, id);
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xmpp_stanza_set_from(iq, xmpp_conn_get_jid(connection_get_conn()));
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xmpp_stanza_set_to(iq, jid);
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// pubsub
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xmpp_stanza_t* pubsub = xmpp_stanza_new(ctx);
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xmpp_stanza_set_name(pubsub, STANZA_NAME_PUBSUB);
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xmpp_stanza_set_ns(pubsub, XMPP_FEATURE_PUBSUB);
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// items
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GString* node_name = g_string_new(STANZA_NS_OPENPGP_0_PUBLIC_KEYS);
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g_string_append(node_name, ":");
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g_string_append(node_name, fingerprint);
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xmpp_stanza_t* items = xmpp_stanza_new(ctx);
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xmpp_stanza_set_name(items, STANZA_NAME_ITEMS);
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xmpp_stanza_set_attribute(items, STANZA_ATTR_NODE, node_name->str);
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xmpp_stanza_set_attribute(items, "max_items", "1");
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xmpp_stanza_add_child(pubsub, items);
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xmpp_stanza_add_child(iq, pubsub);
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xmpp_id_handler_add(connection_get_conn(), _ox_public_key_result, id, NULL);
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xmpp_send(connection_get_conn(), iq);
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}
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/*!
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*
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* <pre>
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<iq from='juliet@example.org'
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to='romeo@example.org/orchard'
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type='result'
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id='getpub'>
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<pubsub xmlns='http://jabber.org/protocol/pubsub'>
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<items node='urn:xmpp:openpgp:0:public-keys:123454678819283823ABCDEF1234566789001234'>
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<item id='2020-01-21T10:46:21Z'>
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<pubkey xmlns='urn:xmpp:openpgp:0'>
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<data>
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BASE64_OPENPGP_PUBLIC_KEY
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</data>
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</pubkey>
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</item>
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</items>
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</pubsub>
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</iq>
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* </pre>
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*/
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int
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_ox_public_key_result(xmpp_conn_t* const conn, xmpp_stanza_t* const stanza, void* const userdata)
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{
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log_debug("OX: Processing result public key");
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if (g_strcmp0(xmpp_stanza_get_type(stanza), "result") != 0) {
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cons_show("Public Key import failed. Check log for details.");
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log_error("OX: Public Key response type is wrong");
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return FALSE;
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}
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// pubsub
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xmpp_stanza_t* pubsub = stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_PUBSUB, XMPP_FEATURE_PUBSUB);
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if (!pubsub) {
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cons_show("Public Key import failed. Check log for details.");
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log_error("OX: Public key request response failed: No <pubsub/>");
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return FALSE;
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}
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xmpp_stanza_t* items = xmpp_stanza_get_child_by_name(pubsub, STANZA_NAME_ITEMS);
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if (!items) {
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cons_show("Public Key import failed. Check log for details.");
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log_error("OX: Public key request response failed: No <items/>");
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return FALSE;
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}
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xmpp_stanza_t* item = xmpp_stanza_get_child_by_name(items, STANZA_NAME_ITEM);
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if (!item) {
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cons_show("Public Key import failed. Check log for details.");
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log_error("OX: Public key request response failed: No <item/>");
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return FALSE;
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}
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xmpp_stanza_t* pubkey = stanza_get_child_by_name_and_ns(item, STANZA_NAME_PUPKEY, STANZA_NS_OPENPGP_0);
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if (!pubkey) {
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cons_show("Public Key import failed. Check log for details.");
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log_error("OX: Public key request response failed: No <pubkey/>");
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return FALSE;
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}
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xmpp_stanza_t* data = xmpp_stanza_get_child_by_name(pubkey, STANZA_NAME_DATA);
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char* base64_data = xmpp_stanza_get_text(data);
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log_debug("Key data: %s", base64_data);
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if (p_ox_gpg_import(base64_data)) {
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cons_show("Public Key imported");
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} else {
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cons_show("Public Key import failed. Check log for details.");
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}
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return FALSE;
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}
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// Date and Time (XEP-0082)
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char*
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_gettimestamp()
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@@ -56,3 +56,15 @@
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*/
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gboolean ox_announce_public_key(const char* const filename);
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/*!
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* \brief Discovering Public Keys of a User.
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*
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* Reads the public key from a JIDs PEP.
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*
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* \param jid JID
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*/
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void ox_discover_public_key(const char* const jid);
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void ox_request_public_key(const char* const jid, const char* const fingerprint);
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