diff options
Diffstat (limited to 'src/xmpp/connection.c')
| -rw-r--r-- | src/xmpp/connection.c | 360 |
1 files changed, 359 insertions, 1 deletions
diff --git a/src/xmpp/connection.c b/src/xmpp/connection.c index 30ef0a9e..5570fb1a 100644 --- a/src/xmpp/connection.c +++ b/src/xmpp/connection.c @@ -58,6 +58,7 @@ #include "event/server_events.h" #include "xmpp/connection.h" #include "xmpp/session.h" +#include "xmpp/stanza.h" #include "xmpp/iq.h" #include "ui/ui.h" @@ -77,6 +78,12 @@ typedef struct prof_conn_t GHashTable* requested_features; } ProfConnection; +typedef struct +{ + const char* username; + const char* password; +} prof_reg_t; + static ProfConnection conn; static gchar* profanity_instance_id = NULL; static gchar* prof_identifier = NULL; @@ -245,6 +252,341 @@ connection_connect(const char* const jid, const char* const passwd, const char* return conn.conn_status; } +static int +iq_reg2_cb(xmpp_conn_t* xmpp_conn, xmpp_stanza_t* stanza, void* userdata) +{ + const char* type; + + (void)userdata; + + type = xmpp_stanza_get_type(stanza); + if (!type || strcmp(type, "error") == 0) { + char* error_message = stanza_get_error_message(stanza); + cons_show_error("Server error: %s", error_message); + log_debug("Registration error: %s", error_message); + goto quit; + } + + if (strcmp(type, "result") != 0) { + log_debug("Expected type 'result', but got %s.", type); + goto quit; + } + + cons_show("Registration successful."); + log_info("Registration successful."); + goto quit; + +quit: + xmpp_disconnect(xmpp_conn); + + return 0; +} + +static int +iq_reg_cb(xmpp_conn_t* xmpp_conn, xmpp_stanza_t* stanza, void* userdata) +{ + prof_reg_t* reg = (prof_reg_t*)userdata; + xmpp_stanza_t* registered = NULL; + xmpp_stanza_t* query; + const char* type; + + type = xmpp_stanza_get_type(stanza); + if (!type || strcmp(type, "error") == 0) { + char* error_message = stanza_get_error_message(stanza); + cons_show_error("Server error: %s", error_message); + log_debug("Registration error: %s", error_message); + xmpp_disconnect(xmpp_conn); + goto quit; + } + + if (strcmp(type, "result") != 0) { + log_debug("Expected type 'result', but got %s.", type); + xmpp_disconnect(xmpp_conn); + goto quit; + } + + query = xmpp_stanza_get_child_by_name(stanza, "query"); + if (query) + registered = xmpp_stanza_get_child_by_name(query, "registered"); + if (registered != NULL) { + cons_show_error("Already registered."); + log_debug("Already registered."); + xmpp_disconnect(xmpp_conn); + goto quit; + } + xmpp_stanza_t* iq = stanza_register_new_account(conn.xmpp_ctx, reg->username, reg->password); + xmpp_id_handler_add(xmpp_conn, iq_reg2_cb, xmpp_stanza_get_id(iq), reg); + xmpp_send(xmpp_conn, iq); + +quit: + return 0; +} + +static int +_register_handle_error(xmpp_conn_t* xmpp_conn, xmpp_stanza_t* stanza, void* userdata) +{ + (void)stanza; + (void)userdata; + + char* error_message = stanza_get_error_message(stanza); + cons_show_error("Server error: %s", error_message); + log_debug("Registration error: %s", error_message); + xmpp_disconnect(xmpp_conn); + + return 0; +} + +static int +_register_handle_proceedtls_default(xmpp_conn_t* xmpp_conn, + xmpp_stanza_t* stanza, + void* userdata) +{ + const char* name = xmpp_stanza_get_name(stanza); + + (void)userdata; + + if (strcmp(name, "proceed") == 0) { + log_debug("Proceeding with TLS."); + if (xmpp_conn_tls_start(xmpp_conn) == 0) { + xmpp_handler_delete(xmpp_conn, _register_handle_error); + xmpp_conn_open_stream_default(xmpp_conn); + } else { + log_debug("TLS failed."); + /* failed tls spoils the connection, so disconnect */ + xmpp_disconnect(xmpp_conn); + } + } + return 0; +} + +static int +_register_handle_missing_features(xmpp_conn_t* xmpp_conn, void* userdata) +{ + (void)userdata; + + log_debug("Timeout"); + xmpp_disconnect(xmpp_conn); + + return 0; +} + +static int +_register_handle_features(xmpp_conn_t* xmpp_conn, xmpp_stanza_t* stanza, void* userdata) +{ + prof_reg_t* reg = (prof_reg_t*)userdata; + xmpp_ctx_t* ctx = conn.xmpp_ctx; + xmpp_stanza_t* child; + xmpp_stanza_t* iq; + char* domain; + + xmpp_timed_handler_delete(xmpp_conn, _register_handle_missing_features); + + /* secure connection if possible */ + child = xmpp_stanza_get_child_by_name(stanza, "starttls"); + if (child && (strcmp(xmpp_stanza_get_ns(child), XMPP_NS_TLS) == 0)) { + log_debug("Server supports TLS. Attempting to establish..."); + child = xmpp_stanza_new(ctx); + xmpp_stanza_set_name(child, "starttls"); + xmpp_stanza_set_ns(child, XMPP_NS_TLS); + xmpp_handler_add(xmpp_conn, _register_handle_proceedtls_default, XMPP_NS_TLS, NULL, + NULL, NULL); + xmpp_send(xmpp_conn, child); + xmpp_stanza_release(child); + return 0; + } + + /* check whether server supports in-band registration */ + child = xmpp_stanza_get_child_by_name(stanza, "register"); + if (!child) { + log_debug("Server does not support in-band registration."); + cons_show_error("Server does not support in-band registration, aborting."); + xmpp_disconnect(xmpp_conn); + return 0; + } + + log_debug("Server supports in-band registration. Attempting registration."); + + domain = strdup(conn.domain); + iq = xmpp_iq_new(ctx, "get", "reg1"); + xmpp_stanza_set_to(iq, domain); + child = xmpp_stanza_new(ctx); + xmpp_stanza_set_name(child, "query"); + xmpp_stanza_set_ns(child, STANZA_NS_REGISTER); + xmpp_stanza_add_child(iq, child); + + xmpp_handler_add(xmpp_conn, iq_reg_cb, STANZA_NS_REGISTER, "iq", NULL, reg); + xmpp_send(xmpp_conn, iq); + + xmpp_free(ctx, domain); + xmpp_stanza_release(child); + xmpp_stanza_release(iq); + + return 0; +} + +static void +_register_handler(xmpp_conn_t* xmpp_conn, + xmpp_conn_event_t status, + int error, + xmpp_stream_error_t* stream_error, + void* userdata) +{ + conn.conn_last_event = status; + + prof_reg_t* reg = (prof_reg_t*)userdata; + int secured; + + (void)error; + (void)stream_error; + + switch (status) { + + case XMPP_CONN_RAW_CONNECT: + log_debug("Raw connection established."); + xmpp_conn_open_stream_default(xmpp_conn); + conn.conn_status = JABBER_RAW_CONNECTED; + break; + + case XMPP_CONN_CONNECT: + log_debug("Connected."); + secured = xmpp_conn_is_secured(xmpp_conn); + conn.conn_status = JABBER_CONNECTED; + log_debug("Connection is %s.\n", + secured ? "secured" : "NOT secured"); + + Jid* my_jid = jid_create(xmpp_conn_get_jid(xmpp_conn)); + conn.domain = strdup(my_jid->domainpart); + jid_destroy(my_jid); + + xmpp_handler_add(xmpp_conn, _register_handle_error, XMPP_NS_STREAMS, "error", NULL, + NULL); + xmpp_handler_add(xmpp_conn, _register_handle_features, XMPP_NS_STREAMS, "features", + NULL, reg); + xmpp_timed_handler_add(xmpp_conn, _register_handle_missing_features, 5000, + NULL); + break; + + case XMPP_CONN_DISCONNECT: + log_debug("Disconnected"); + conn.conn_status = JABBER_DISCONNECTED; + break; + + default: + break; + } +} + +jabber_conn_status_t +connection_register(const char* const altdomain, int port, const char* const tls_policy, + const char* const username, const char* const password) +{ + long flags; + + Jid* jidp = jid_create(altdomain); + if (jidp == NULL) { + log_error("Malformed JID not able to connect: %s", altdomain); + conn.conn_status = JABBER_DISCONNECTED; + return conn.conn_status; + } + + _compute_identifier(jidp->barejid); + jid_destroy(jidp); + + if (conn.xmpp_log) { + free(conn.xmpp_log); + } + conn.xmpp_log = _xmpp_get_file_logger(); + + if (conn.xmpp_conn) { + xmpp_conn_release(conn.xmpp_conn); + } + if (conn.xmpp_ctx) { + xmpp_ctx_free(conn.xmpp_ctx); + } + conn.xmpp_ctx = xmpp_ctx_new(NULL, conn.xmpp_log); + if (conn.xmpp_ctx == NULL) { + log_warning("Failed to get libstrophe ctx during connect"); + return JABBER_DISCONNECTED; + } + conn.xmpp_conn = xmpp_conn_new(conn.xmpp_ctx); + if (conn.xmpp_conn == NULL) { + log_warning("Failed to get libstrophe conn during connect"); + return JABBER_DISCONNECTED; + } + xmpp_conn_set_jid(conn.xmpp_conn, altdomain); + + flags = xmpp_conn_get_flags(conn.xmpp_conn); + + if (!tls_policy || (g_strcmp0(tls_policy, "force") == 0)) { + flags |= XMPP_CONN_FLAG_MANDATORY_TLS; + } else if (g_strcmp0(tls_policy, "trust") == 0) { + flags |= XMPP_CONN_FLAG_MANDATORY_TLS; + flags |= XMPP_CONN_FLAG_TRUST_TLS; + } else if (g_strcmp0(tls_policy, "disable") == 0) { + flags |= XMPP_CONN_FLAG_DISABLE_TLS; + } else if (g_strcmp0(tls_policy, "legacy") == 0) { + flags |= XMPP_CONN_FLAG_LEGACY_SSL; + } + + xmpp_conn_set_flags(conn.xmpp_conn, flags); + + /* Print debug logs that can help when users share the logs */ + if (flags != 0) { + log_debug("Connecting with flags (0x%lx):", flags); +#define LOG_FLAG_IF_SET(name) \ + if (flags & name) { \ + log_debug(" " #name); \ + } + LOG_FLAG_IF_SET(XMPP_CONN_FLAG_MANDATORY_TLS); + LOG_FLAG_IF_SET(XMPP_CONN_FLAG_TRUST_TLS); + LOG_FLAG_IF_SET(XMPP_CONN_FLAG_DISABLE_TLS); + LOG_FLAG_IF_SET(XMPP_CONN_FLAG_LEGACY_SSL); +#undef LOG_FLAG_IF_SET + } + + prof_reg_t* reg; + + reg = calloc(1, sizeof(*reg)); + if (reg == NULL) { + log_warning("Failed to allocate registration data struct during connect"); + return JABBER_DISCONNECTED; + } + + reg->username = strdup(username); + reg->password = strdup(password); + +#ifdef HAVE_LIBMESODE + char* cert_path = prefs_get_tls_certpath(); + if (cert_path) { + xmpp_conn_tlscert_path(conn.xmpp_conn, cert_path); + free(cert_path); + } + + int connect_status = xmpp_connect_raw( + conn.xmpp_conn, + altdomain, + port, + _connection_certfail_cb, + _register_handler, + reg); +#else + int connect_status = xmpp_connect_raw( + conn.xmpp_conn, + altdomain, + port, + _register_handler, + reg); +#endif + + if (connect_status == 0) { + conn.conn_status = JABBER_RAW_CONNECTING; + } else { + conn.conn_status = JABBER_DISCONNECTED; + } + + return conn.conn_status; +} + void connection_disconnect(void) { @@ -515,7 +857,6 @@ char* connection_create_stanza_id(void) { char* rndid = get_random_string(CON_RAND_ID_LEN); - assert(rndid != NULL); gchar* hmac = g_compute_hmac_for_string(G_CHECKSUM_SHA1, @@ -581,6 +922,23 @@ _connection_handler(xmpp_conn_t* const xmpp_conn, const xmpp_conn_event_t status break; + // raw connection success + case XMPP_CONN_RAW_CONNECT: + log_debug("Connection handler: XMPP_CONN_RAW_CONNECT"); + conn.conn_status = JABBER_RAW_CONNECTED; + + Jid* my_raw_jid = jid_create(xmpp_conn_get_jid(conn.xmpp_conn)); + log_debug("jid: %s", xmpp_conn_get_jid(conn.xmpp_conn)); + conn.domain = strdup(my_raw_jid->domainpart); + jid_destroy(my_raw_jid); + + conn.features_by_jid = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)g_hash_table_destroy); + g_hash_table_insert(conn.features_by_jid, strdup(conn.domain), g_hash_table_new_full(g_str_hash, g_str_equal, free, NULL)); + + xmpp_conn_open_stream_default(xmpp_conn); + + break; + // disconnected case XMPP_CONN_DISCONNECT: log_debug("Connection handler: XMPP_CONN_DISCONNECT"); |