merge: sync upstream profanity-im/profanity

Sync with upstream profanity-im/profanity.

Major upstream changes incorporated:

Memory management
  - Replace malloc+memset with g_new0 throughout codebase
  - Adopt auto_gchar / auto_gcharv / auto_gerror / auto_jid cleanup macros
  - Replace free() with g_free() for GAlloc'd memory

Editor rewrite
  - Remove pthread-based async editor; use GChildWatch callback API
  - New launch_editor(initial_content, callback, user_data) interface
  - Proper signal handling (SIGINT, SIGTSTP, SIGPIPE reset in child)
  - ui_suspend()/ui_resume() integration for TTY management

OMEMO improvements
  - Dual backend support: libsignal-protocol-c and libomemo-c
  - Proper pre-key removal after use (XEP-0384 compliance)
  - Automatic pre-key regeneration when store drops below threshold
  - New functions: omemo_is_device_active(), omemo_is_jid_trusted()
  - omemo_get_jid_untrusted_fingerprints() for better error messages
  - Fingerprint notifications on new device identity discovery
  - Deterministic pre-key ID generation tracking max_pre_key_id
  - omemo_trust_changed() UI updates on trust state changes

JID validation
  - RFC 6122-compliant validation in jid_is_valid()
  - Character-level checks (RFC 6122 forbidden chars: & ' / : < > @)
  - Length limits: 1023 per component, 3071 total
  - New jid_is_valid_user_jid() for user vs. service JID distinction

Database
  - Schema migration v3: UNIQUE constraint on archive_id for deduplication
  - Triggers for corrected message tracking (replaces_db_id / replaced_by_db_id)
  - db_history_result_t return type, _truncate_datetime_suffix()

UI / console
  - win_warn_needed() / win_warn_sent() warning deduplication hash table
  - PAD_MIN_HEIGHT dynamic pad sizing with PAD_THRESHOLD auto-cleanup
  - Spellcheck integration in input field with Unicode word detection
  - cons_spellcheck_setting() for /settings ui output
  - /[command]? shortcut for command help

Account config
  - Account name sanitization for GKeyFile special chars ([ ] = # \n \r)
  - Replace popen() with g_spawn_sync() for eval_password
  - TLS policy: add "direct" option alongside legacy

Connection
  - Port validation with g_assert (0–65535)
  - SHA-256 certificate fingerprint support (XMPP_CERT_PUBKEY_FINGERPRINT_SHA256)
  - "direct" TLS policy alias for legacy SSL

Common utilities
  - str_xml_sanitize() for XML 1.0 illegal character removal
  - string_matches_one_of() with formatted error messages
  - valid_tls_policy_option() helper
  - prof_date_time_format_iso8601() utility
  - Improved strip_arg_quotes() with backslash unescaping
  - prof_occurrences() uses g_slist_prepend + reverse for performance

PGP / OX
  - Proper GPGME resource cleanup with goto-cleanup pattern
  - g_string_free(xmppuri) leak fix in _ox_key_lookup

CSV export
  - Use GString + g_file_set_contents instead of raw write() syscalls

Tests
  - Restructured into subdirectories: command/, config/, xmpp/, ui/, omemo/, otr/, pgp/
  - New test_cmd_ac.c for autocompleter unit tests
  - Updated stubs for new UI suspend/resume functions

License headers
  - Migrate to SPDX-3.0 identifiers (GPL-3.0-or-later WITH OpenSSL-exception)

────────────────────────────────────────────────────
cproof-specific preservations:

  - XEP-0308 LMC: replace_id ?: id logic in message/stanza/omemo
  - Force encryption: cmd_force_encryption, test_forced_encryption
  - CWE-134: format string protection (cons_show("%s", ...))
  - y_start_pos-based paging in window.c
  - db_history_result_t return type, _truncate_datetime_suffix()

Merge-time fixes:

  - common.c: format-security (-Werror) — cons_show(errmsg) → cons_show("%s", errmsg)
  - database.c: null-deref guard — !msg->timestamp → msg && !msg->timestamp
  - console.c: implicit size_t → int cast — (int)(maxlen + 1)
  - tlscerts.c: %d for size_t — %zu

Build system:
  - Kept autotools (Makefile.am, configure.ac); upstream uses Meson
  - Restored deleted files: bootstrap.sh, autogen.sh, ax_valgrind_check.m4, configure-debug
  - Updated Makefile.am test paths for subdirectory structure
  - Added test_cmd_ac, test_forced_encryption to test sources

Functional tests:
  - Use cproof version; upstream requires stbbr_for_xmlns from updated stabber
  - Not yet available in devs/stabber fork

Closes #64

Merge author: jabber.developer2
Commits authors:
 Michael Vetter <jubalh@iodoru.org>
& Steffen Jaeckel <s@jaeckel.eu>

src/xmpp/blocking.c

@@ -4,33 +4,7 @@
  *
  * Copyright (C) 2012 - 2019 James Booth <boothj5@gmail.com>
  *
- * This file is part of Profanity.
- *
- * Profanity is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Profanity is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Profanity.  If not, see <https://www.gnu.org/licenses/>.
- *
- * In addition, as a special exception, the copyright holders give permission to
- * link the code of portions of this program with the OpenSSL library under
- * certain conditions as described in each individual source file, and
- * distribute linked combinations including the two.
- *
- * You must obey the GNU General Public License in all respects for all of the
- * code used other than OpenSSL. If you modify file(s) with this exception, you
- * may extend this exception to your version of the file(s), but you are not
- * obligated to do so. If you do not wish to do so, delete this exception
- * statement from your version. If you delete this exception statement from all
- * source files in the program, then also delete it here.
- *
+ * SPDX-License-Identifier: GPL-3.0-or-later WITH OpenSSL-exception
  */
 
 #include "config.h"
@@ -142,9 +116,26 @@ blocked_add(char* jid, blocked_report reportkind, const char* const message)
             xmpp_stanza_set_attribute(report, STANZA_ATTR_REASON, STANZA_REPORTING_SPAM);
         }
 
+        xmpp_stanza_t* origin = xmpp_stanza_new(ctx);
+        xmpp_stanza_set_name(origin, STANZA_NAME_REPORT_ORIGIN);
+        xmpp_stanza_set_attribute(origin, STANZA_ATTR_JID, connection_get_fulljid());
+        xmpp_stanza_add_child(report, origin);
+        xmpp_stanza_release(origin);
+
+        xmpp_stanza_t* third_party = xmpp_stanza_new(ctx);
+        xmpp_stanza_set_name(third_party, STANZA_NAME_THIRD_PARTY);
+        xmpp_stanza_set_attribute(third_party, STANZA_ATTR_JID, jid);
+        xmpp_stanza_add_child(report, third_party);
+        xmpp_stanza_release(third_party);
+
         if (message) {
             xmpp_stanza_t* text = xmpp_stanza_new(ctx);
-            xmpp_stanza_set_name(text, STANZA_NAME_TEXT);
+            if (reportkind == BLOCKED_REPORT_SPAM) {
+                xmpp_stanza_set_name(text, STANZA_NAME_BODY);
+                xmpp_stanza_set_ns(text, "jabber:client");
+            } else {
+                xmpp_stanza_set_name(text, STANZA_NAME_TEXT);
+            }
 
             xmpp_stanza_t* txt = xmpp_stanza_new(ctx);
             xmpp_stanza_set_text(txt, message);
@@ -340,3 +331,83 @@ _blocklist_result_handler(xmpp_stanza_t* const stanza, void* const userdata)
 
     return 0;
 }
+
+int
+reporting_set_handler(xmpp_stanza_t* stanza)
+{
+    const char* from = xmpp_stanza_get_from(stanza);
+    xmpp_stanza_t* report = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_REPORTING);
+    if (!report) {
+        return 1;
+    }
+
+    const char* reason = xmpp_stanza_get_attribute(report, STANZA_ATTR_REASON);
+    const char* display_reason = "unknown";
+    if (g_strcmp0(reason, STANZA_REPORTING_SPAM) == 0) {
+        display_reason = "spam";
+    } else if (g_strcmp0(reason, STANZA_REPORTING_ABUSE) == 0) {
+        display_reason = "abuse";
+    }
+
+    char* message = NULL;
+    xmpp_stanza_t* body = xmpp_stanza_get_child_by_name(report, STANZA_NAME_BODY);
+    if (body) {
+        message = xmpp_stanza_get_text(body);
+    } else {
+        xmpp_stanza_t* text = xmpp_stanza_get_child_by_name(report, STANZA_NAME_TEXT);
+        if (text) {
+            message = xmpp_stanza_get_text(text);
+        }
+    }
+
+    // Attempt to find the reported JID if it's wrapped in an item (sync push style)
+    const char* reported_jid = NULL;
+    xmpp_stanza_t* block = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_BLOCKING);
+    if (block) {
+        xmpp_stanza_t* item = xmpp_stanza_get_child_by_name(block, STANZA_NAME_ITEM);
+        if (item) {
+            reported_jid = xmpp_stanza_get_attribute(item, STANZA_ATTR_JID);
+        }
+    }
+
+    xmpp_stanza_t* third_party = xmpp_stanza_get_child_by_name(report, STANZA_NAME_THIRD_PARTY);
+    if (third_party) {
+        reported_jid = xmpp_stanza_get_attribute(third_party, STANZA_ATTR_JID);
+    }
+
+    const char* reported_by = NULL;
+    xmpp_stanza_t* origin = xmpp_stanza_get_child_by_name(report, STANZA_NAME_REPORT_ORIGIN);
+    if (origin) {
+        reported_by = xmpp_stanza_get_attribute(origin, STANZA_ATTR_JID);
+    }
+
+    auto_gchar gchar* report_origin_str = NULL;
+    if (reported_by) {
+        report_origin_str = g_strdup_printf(" (origin: %s)", reported_by);
+    } else {
+        report_origin_str = g_strdup("");
+    }
+
+    if (reported_jid) {
+        if (message) {
+            cons_show("Incoming %s report%s from %s: User %s reported for %s. Content: \"%s\"",
+                      display_reason, report_origin_str, from, reported_jid, display_reason, message);
+        } else {
+            cons_show("Incoming %s report%s from %s: User %s reported for %s.",
+                      display_reason, report_origin_str, from, reported_jid, display_reason);
+        }
+    } else {
+        if (message) {
+            cons_show("Incoming %s report%s from %s. Content: \"%s\"",
+                      display_reason, report_origin_str, from, message);
+        } else {
+            cons_show("Incoming %s report%s from %s.", display_reason, report_origin_str, from);
+        }
+    }
+
+    if (message) {
+        xmpp_free(xmpp_stanza_get_context(stanza), message);
+    }
+
+    return 1;
+}