Fossil

  const char *zMsg;
  const char *zUserName;
  login_check_credentials();
  if( 0==g.perm.Chat ) {
    chat_emit_permissions_error(0);
    return;
  }
  if( !db_table_exists("repository","chat") ){
    return;
  }
  zUserName = (g.zLogin && g.zLogin[0]) ? g.zLogin : "nobody";
  nByte = atoi(PD("file:bytes","0"));
  zMsg = PD("msg","");
  db_begin_write();
  db_unprotect(PROTECT_READONLY);

  chat_purge();
  if( nByte==0 ){
    if( zMsg[0] ){
      db_multi_exec(
        "INSERT INTO chat(mtime,lmtime,xfrom,xmsg)"
        "VALUES(julianday('now'),%Q,%Q,%Q)",
        P("lmtime"), zUserName, zMsg

        PD("file:mimetype","application/octet-stream"));
    blob_init(&b, P("file"), nByte);
    db_bind_blob(&q, ":file", &b);
    db_step(&q);
    db_finalize(&q);
    blob_reset(&b);
  }
  db_protect_pop();
  db_commit_transaction();

}

/*
** This routine receives raw (user-entered) message text and
** transforms it into HTML that is safe to insert using innerHTML. As
** of 2021-09-19, it does so by using wiki_convert() or
** markdown_to_html() to convert wiki/markdown-formatted zMsg to HTML.

#ifdef _WIN32
    zCmd = mprintf("%s %s/chat?cli &", zBrowser, zUrl);
#else
    zCmd = mprintf("%s \"%s/chat?cli\" &", zBrowser, zUrl);
#endif
    fossil_system(zCmd);
  }else if( strcmp(g.argv[2],"send")==0 ){
    const char *zFilename = find_option("file","r",1);
    const char *zAs = find_option("as",0,1);
    const char *zMsg = find_option("message","m",1);
    int allowUnsafe = find_option("unsafe",0,0)!=0;
    const int mFlags = HTTP_GENERIC | HTTP_QUIET | HTTP_NOCOMPRESS;
    int i;
    const char *zPw;
    char *zLMTime;