libraries/replication_gui.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Functions for the replication GUI
   5  *
   6  * @package PhpMyAdmin
   7  */
   8 use PMA\libraries\Message;
   9 use PMA\libraries\Response;
  10 use PMA\libraries\URL;
  11
  12 /**
  13  * returns HTML for error message
  14  *
  15  * @return String HTML code
  16  */
  17 function PMA_getHtmlForErrorMessage()
  18 {
  19     $html = '';
  20     if (isset($_SESSION['replication']['sr_action_status'])
  21         && isset($_SESSION['replication']['sr_action_info'])
  22     ) {
  23         if ($_SESSION['replication']['sr_action_status'] == 'error') {
  24             $error_message = $_SESSION['replication']['sr_action_info'];
  25             $html .= Message::error($error_message)->getDisplay();
  26             $_SESSION['replication']['sr_action_status'] = 'unknown';
  27         } elseif ($_SESSION['replication']['sr_action_status'] == 'success') {
  28             $success_message = $_SESSION['replication']['sr_action_info'];
  29             $html .= Message::success($success_message)->getDisplay();
  30             $_SESSION['replication']['sr_action_status'] = 'unknown';
  31         }
  32     }
  33     return $html;
  34 }
  35
  36 /**
  37  * returns HTML for master replication
  38  *
  39  * @return String HTML code
  40  */
  41 function PMA_getHtmlForMasterReplication()
  42 {
  43     $html = '';
  44     if (! isset($_REQUEST['repl_clear_scr'])) {
  45         $html .= '<fieldset>';
  46         $html .= '<legend>' . __('Master replication') . '</legend>';
  47         $html .= __('This server is configured as master in a replication process.');
  48         $html .= '<ul>';
  49         $html .= '  <li><a href="#master_status_href" id="master_status_href">';
  50         $html .= __('Show master status') . '</a>';
  51         $html .= PMA_getHtmlForReplicationStatusTable('master', true, false);
  52         $html .= '  </li>';
  53
  54         $html .= '  <li><a href="#master_slaves_href" id="master_slaves_href">';
  55         $html .= __('Show connected slaves') . '</a>';
  56         $html .= PMA_getHtmlForReplicationSlavesTable(true);
  57         $html .= '  </li>';
  58
  59         $_url_params = $GLOBALS['url_params'];
  60         $_url_params['mr_adduser'] = true;
  61         $_url_params['repl_clear_scr'] = true;
  62
  63         $html .= '  <li><a href="server_replication.php';
  64         $html .= URL::getCommon($_url_params)
  65             . '" id="master_addslaveuser_href">';
  66         $html .= __('Add slave replication user') . '</a></li>';
  67     }
  68
  69     // Display 'Add replication slave user' form
  70     if (isset($_REQUEST['mr_adduser'])) {
  71         $html .= PMA_getHtmlForReplicationMasterAddSlaveuser();
  72     } elseif (! isset($_REQUEST['repl_clear_scr'])) {
  73         $html .= "</ul>";
  74         $html .= "</fieldset>";
  75     }
  76
  77     return $html;
  78 }
  79
  80 /**
  81  * returns HTML for master replication configuration
  82  *
  83  * @return String HTML code
  84  */
  85 function PMA_getHtmlForMasterConfiguration()
  86 {
  87     $html  = '<fieldset>';
  88     $html .= '<legend>' . __('Master configuration') . '</legend>';
  89     $html .= __(
  90         'This server is not configured as a master server in a '
  91         . 'replication process. You can choose from either replicating '
  92         . 'all databases and ignoring some of them (useful if you want to '
  93         . 'replicate a majority of the databases) or you can choose to ignore '
  94         . 'all databases by default and allow only certain databases to be '
  95         . 'replicated. Please select the mode:'
  96     ) . '<br /><br />';
  97
  98     $html .= '<select name="db_type" id="db_type">';
  99     $html .= '<option value="all">' . __('Replicate all databases; Ignore:');
 100     $html .= '</option>';
 101     $html .= '<option value="ign">' . __('Ignore all databases; Replicate:');
 102     $html .= '</option>';
 103     $html .= '</select>';
 104     $html .= '<br /><br />';
 105     $html .= __('Please select databases:') . '<br />';
 106     $html .= PMA_getHtmlForReplicationDbMultibox();
 107     $html .= '<br /><br />';
 108     $html .= __(
 109         'Now, add the following lines at the end of [mysqld] section'
 110         . ' in your my.cnf and please restart the MySQL server afterwards.'
 111     ) . '<br />';
 112     $html .= '<pre id="rep"></pre>';
 113     $html .= __(
 114         'Once you restarted MySQL server, please click on Go button. '
 115         . 'Afterwards, you should see a message informing you, that this server'
 116         . ' <b>is</b> configured as master.'
 117     );
 118     $html .= '</fieldset>';
 119     $html .= '<fieldset class="tblFooters">';
 120     $html .= ' <form method="post" action="server_replication.php" >';
 121     $html .= URL::getHiddenInputs('', '');
 122     $html .= '  <input type="submit" value="' . __('Go') . '" id="goButton" />';
 123     $html .= ' </form>';
 124     $html .= '</fieldset>';
 125
 126     return $html;
 127 }
 128
 129 /**
 130  * returns HTML for slave replication configuration
 131  *
 132  * @param bool  $server_slave_status      Whether it is Master or Slave
 133  * @param array $server_slave_replication Slave replication
 134  *
 135  * @return String HTML code
 136  */
 137 function PMA_getHtmlForSlaveConfiguration(
 138     $server_slave_status, $server_slave_replication
 139 ) {
 140     $html  = '<fieldset>';
 141     $html .= '<legend>' . __('Slave replication') . '</legend>';
 142     /**
 143      * check for multi-master replication functionality
 144      */
 145     $server_slave_multi_replication = $GLOBALS['dbi']->fetchResult(
 146         'SHOW ALL SLAVES STATUS'
 147     );
 148     if ($server_slave_multi_replication) {
 149         $html .= __('Master connection:');
 150         $html .= '<form method="get" action="server_replication.php">';
 151         $html .= URL::getHiddenInputs($GLOBALS['url_params']);
 152         $html .= ' <select name="master_connection">';
 153         $html .= '<option value="">' . __('Default') . '</option>';
 154         foreach ($server_slave_multi_replication as $server) {
 155             $html .= '<option' . (isset($_REQUEST['master_connection'])
 156                 && $_REQUEST['master_connection'] == $server['Connection_name'] ?
 157                     ' selected="selected"' : '') . '>' . $server['Connection_name']
 158                 . '</option>';
 159         }
 160         $html .= '</select>';
 161         $html .= ' <input type="submit" value="' . __('Go') . '" id="goButton" />';
 162         $html .= '</form>';
 163         $html .= '<br /><br />';
 164     }
 165     if ($server_slave_status) {
 166         $html .= '<div id="slave_configuration_gui">';
 167
 168         $_url_params = $GLOBALS['url_params'];
 169         $_url_params['sr_take_action'] = true;
 170         $_url_params['sr_slave_server_control'] = true;
 171
 172         if ($server_slave_replication[0]['Slave_IO_Running'] == 'No') {
 173             $_url_params['sr_slave_action'] = 'start';
 174         } else {
 175             $_url_params['sr_slave_action'] = 'stop';
 176         }
 177
 178         $_url_params['sr_slave_control_parm'] = 'IO_THREAD';
 179         $slave_control_io_link = 'server_replication.php'
 180             . URL::getCommon($_url_params);
 181
 182         if ($server_slave_replication[0]['Slave_SQL_Running'] == 'No') {
 183             $_url_params['sr_slave_action'] = 'start';
 184         } else {
 185             $_url_params['sr_slave_action'] = 'stop';
 186         }
 187
 188         $_url_params['sr_slave_control_parm'] = 'SQL_THREAD';
 189         $slave_control_sql_link = 'server_replication.php'
 190             . URL::getCommon($_url_params);
 191
 192         if ($server_slave_replication[0]['Slave_IO_Running'] == 'No'
 193             || $server_slave_replication[0]['Slave_SQL_Running'] == 'No'
 194         ) {
 195             $_url_params['sr_slave_action'] = 'start';
 196         } else {
 197             $_url_params['sr_slave_action'] = 'stop';
 198         }
 199
 200         $_url_params['sr_slave_control_parm'] = null;
 201         $slave_control_full_link = 'server_replication.php'
 202             . URL::getCommon($_url_params);
 203
 204         $_url_params['sr_slave_action'] = 'reset';
 205         $slave_control_reset_link = 'server_replication.php'
 206             . URL::getCommon($_url_params);
 207
 208         $_url_params = $GLOBALS['url_params'];
 209         $_url_params['sr_take_action'] = true;
 210         $_url_params['sr_slave_skip_error'] = true;
 211         $slave_skip_error_link = 'server_replication.php'
 212             . URL::getCommon($_url_params);
 213
 214         if ($server_slave_replication[0]['Slave_SQL_Running'] == 'No') {
 215             $html .= Message::error(
 216                 __('Slave SQL Thread not running!')
 217             )->getDisplay();
 218         }
 219         if ($server_slave_replication[0]['Slave_IO_Running'] == 'No') {
 220             $html .= Message::error(
 221                 __('Slave IO Thread not running!')
 222             )->getDisplay();
 223         }
 224
 225         $_url_params = $GLOBALS['url_params'];
 226         $_url_params['sl_configure'] = true;
 227         $_url_params['repl_clear_scr'] = true;
 228
 229         $reconfiguremaster_link = 'server_replication.php'
 230             . URL::getCommon($_url_params);
 231
 232         $html .= __(
 233             'Server is configured as slave in a replication process. Would you ' .
 234             'like to:'
 235         );
 236         $html .= '<br />';
 237         $html .= '<ul>';
 238         $html .= ' <li><a href="#slave_status_href" id="slave_status_href">';
 239         $html .= __('See slave status table') . '</a>';
 240         $html .= PMA_getHtmlForReplicationStatusTable('slave', true, false);
 241         $html .= ' </li>';
 242
 243         $html .= ' <li><a href="#slave_control_href" id="slave_control_href">';
 244         $html .= __('Control slave:') . '</a>';
 245         $html .= ' <div id="slave_control_gui" style="display: none">';
 246         $html .= '  <ul>';
 247         $html .= '   <li><a href="' . $slave_control_full_link . '">';
 248         $html .= (($server_slave_replication[0]['Slave_IO_Running'] == 'No' ||
 249                    $server_slave_replication[0]['Slave_SQL_Running'] == 'No')
 250                  ? __('Full start')
 251                  : __('Full stop')) . ' </a></li>';
 252         $html .= '   <li><a class="ajax" id="reset_slave"'
 253             . ' href="' . $slave_control_reset_link . '">';
 254         $html .= __('Reset slave') . '</a></li>';
 255         if ($server_slave_replication[0]['Slave_SQL_Running'] == 'No') {
 256             $html .= '   <li><a href="' . $slave_control_sql_link . '">';
 257             $html .= __('Start SQL Thread only') . '</a></li>';
 258         } else {
 259             $html .= '   <li><a href="' . $slave_control_sql_link . '">';
 260             $html .= __('Stop SQL Thread only') . '</a></li>';
 261         }
 262         if ($server_slave_replication[0]['Slave_IO_Running'] == 'No') {
 263             $html .= '   <li><a href="' . $slave_control_io_link . '">';
 264             $html .= __('Start IO Thread only') . '</a></li>';
 265         } else {
 266             $html .= '   <li><a href="' . $slave_control_io_link . '">';
 267             $html .= __('Stop IO Thread only') . '</a></li>';
 268         }
 269         $html .= '  </ul>';
 270         $html .= ' </div>';
 271         $html .= ' </li>';
 272         $html .= ' <li>';
 273         $html .= PMA_getHtmlForSlaveErrorManagement($slave_skip_error_link);
 274         $html .= ' </li>';
 275         $html .= ' <li><a href="' . $reconfiguremaster_link . '">';
 276         $html .=  __('Change or reconfigure master server') . '</a></li>';
 277         $html .= '</ul>';
 278         $html .= '</div>';
 279
 280     } elseif (! isset($_REQUEST['sl_configure'])) {
 281         $_url_params = $GLOBALS['url_params'];
 282         $_url_params['sl_configure'] = true;
 283         $_url_params['repl_clear_scr'] = true;
 284
 285         $html .= sprintf(
 286             __(
 287                 'This server is not configured as slave in a replication process. '
 288                 . 'Would you like to <a href="%s">configure</a> it?'
 289             ),
 290             'server_replication.php' . URL::getCommon($_url_params)
 291         );
 292     }
 293     $html .= '</fieldset>';
 294
 295     return $html;
 296 }
 297
 298 /**
 299  * returns HTML for Slave Error Management
 300  *
 301  * @param String $slave_skip_error_link error link
 302  *
 303  * @return String HTML code
 304  */
 305 function PMA_getHtmlForSlaveErrorManagement($slave_skip_error_link)
 306 {
 307     $html  = '<a href="#slave_errormanagement_href" '
 308         . 'id="slave_errormanagement_href">';
 309     $html .= __('Error management:') . '</a>';
 310     $html .= ' <div id="slave_errormanagement_gui" style="display: none">';
 311     $html .= Message::error(
 312         __('Skipping errors might lead into unsynchronized master and slave!')
 313     )->getDisplay();
 314     $html .= '  <ul>';
 315     $html .= '   <li><a href="' . $slave_skip_error_link . '">';
 316     $html .= __('Skip current error') . '</a></li>';
 317     $html .= '   <li>';
 318     $html .= '    <form method="post" action="server_replication.php">';
 319     $html .= URL::getHiddenInputs('', '');
 320     $html .= sprintf(
 321         __('Skip next %s errors.'),
 322         '<input type="text" name="sr_skip_errors_count" value="1" '
 323         . 'style="width: 30px" />'
 324     );
 325     $html .= '              <input type="submit" name="sr_slave_skip_error" ';
 326     $html .= 'value="' . __('Go') . '" />';
 327     $html .= '      <input type="hidden" name="sr_take_action" value="1" />';
 328     $html .= '    </form></li>';
 329     $html .= '  </ul>';
 330     $html .= ' </div>';
 331     return $html;
 332 }
 333
 334 /**
 335  * returns HTML for not configure for a server replication
 336  *
 337  * @return String HTML code
 338  */
 339 function PMA_getHtmlForNotServerReplication()
 340 {
 341     $_url_params = $GLOBALS['url_params'];
 342     $_url_params['mr_configure'] = true;
 343
 344     $html  = '<fieldset>';
 345     $html .= '<legend>' . __('Master replication') . '</legend>';
 346     $html .= sprintf(
 347         __(
 348             'This server is not configured as master in a replication process. '
 349             . 'Would you like to <a href="%s">configure</a> it?'
 350         ),
 351         'server_replication.php' . URL::getCommon($_url_params)
 352     );
 353     $html .= '</fieldset>';
 354     return $html;
 355 }
 356
 357 /**
 358  * returns HTML code for selecting databases
 359  *
 360  * @return String HTML code
 361  */
 362 function PMA_getHtmlForReplicationDbMultibox()
 363 {
 364     $multi_values = '';
 365     $multi_values .= '<select name="db_select[]" '
 366         . 'size="6" multiple="multiple" id="db_select">';
 367
 368     foreach ($GLOBALS['dblist']->databases as $current_db) {
 369         if ($GLOBALS['dbi']->isSystemSchema($current_db)) {
 370             continue;
 371         }
 372         $current_db = htmlspecialchars($current_db);
 373         $multi_values .= '                <option value="' . $current_db . '" ';
 374         $multi_values .= '>';
 375         $multi_values .= $current_db . '</option>';
 376     } // end while
 377
 378     $multi_values .= '</select><br />';
 379     $multi_values .= '<a href="#" id="db_select_href">' . __('Select all') . '</a>';
 380     $multi_values .= '&nbsp;/&nbsp;';
 381     $multi_values .= '<a href="#" id="db_reset_href">' . __('Unselect all') . '</a>';
 382
 383     return $multi_values;
 384 }
 385
 386 /**
 387  * returns HTML for changing master
 388  *
 389  * @param String $submitname - submit button name
 390  *
 391  * @return String HTML code
 392  */
 393 function PMA_getHtmlForReplicationChangeMaster($submitname)
 394 {
 395     $html = '';
 396     list($username_length, $hostname_length)
 397         = PMA_replicationGetUsernameHostnameLength();
 398
 399     $html .= '<form method="post" action="server_replication.php">';
 400     $html .= URL::getHiddenInputs('', '');
 401     $html .= ' <fieldset id="fieldset_add_user_login">';
 402     $html .= '  <legend>' . __('Slave configuration');
 403     $html .= ' - ' . __('Change or reconfigure master server') . '</legend>';
 404     $html .= __(
 405         'Make sure, you have unique server-id in your configuration file (my.cnf). '
 406         . 'If not, please add the following line into [mysqld] section:'
 407     );
 408     $html .= '<br />';
 409     $html .= '<pre>server-id=' . time() . '</pre>';
 410
 411     $html .= PMA_getHtmlForAddUserInputDiv(
 412         array('text'=>__('User name:'), 'for'=>"text_username"),
 413         array(
 414             'type'=>'text',
 415             'name'=>'username',
 416             'id'=>'text_username',
 417             'maxlength'=>$username_length,
 418             'title'=>__('User name'),
 419             'required'=>'required'
 420         )
 421     );
 422
 423     $html .= PMA_getHtmlForAddUserInputDiv(
 424         array('text'=>__('Password:'), 'for'=>"text_pma_pw"),
 425         array(
 426             'type'=>'password',
 427             'name'=>'pma_pw',
 428             'id'=>'text_pma_pw',
 429             'title'=>__('Password'),
 430             'required'=>'required'
 431         )
 432     );
 433
 434     $html .= PMA_getHtmlForAddUserInputDiv(
 435         array('text'=>__('Host:'), 'for'=>"text_hostname"),
 436         array(
 437             'type'=>'text',
 438             'name'=>'hostname',
 439             'id'=>'text_hostname',
 440             'maxlength'=>$hostname_length,
 441             'value'=>'',
 442             'required'=>'required'
 443         )
 444     );
 445
 446     $html .= PMA_getHtmlForAddUserInputDiv(
 447         array('text'=>__('Port:'), 'for'=>"text_port"),
 448         array(
 449             'type'=>'number',
 450             'name'=>'text_port',
 451             'id'=>'text_port',
 452             'maxlength'=>6,
 453             'value'=>'3306',
 454             'required'=>'required'
 455          )
 456     );
 457
 458     $html .= ' </fieldset>';
 459     $html .= ' <fieldset id="fieldset_user_privtable_footer" class="tblFooters">';
 460     $html .= '    <input type="hidden" name="sr_take_action" value="true" />';
 461     $html .= '     <input type="hidden" name="' . $submitname . '" value="1" />';
 462     $html .= '     <input type="submit" id="confslave_submit" value="';
 463     $html .= __('Go') . '" />';
 464     $html .= ' </fieldset>';
 465     $html .= '</form>';
 466
 467     return $html;
 468 }
 469
 470 /**
 471  * returns HTML code for Add user input div
 472  *
 473  * @param array $label_array label tag elements
 474  * @param array $input_array input tag elements
 475  *
 476  * @return String HTML code
 477  */
 478 function PMA_getHtmlForAddUserInputDiv($label_array, $input_array)
 479 {
 480     $html  = '  <div class="item">';
 481     $html .= '     <label for="' . $label_array['for'] . '">';
 482     $html .=  $label_array['text'] . '</label>';
 483
 484     $html .= '    <input ';
 485     foreach ($input_array as $key=>$value) {
 486         $html .= ' ' . $key . '="' . $value . '" ';
 487     }
 488     $html .= ' />';
 489     $html .= '  </div>';
 490     return $html;
 491 }
 492
 493 /**
 494  * This function returns html code for table with replication status.
 495  *
 496  * @param string  $type   either master or slave
 497  * @param boolean $hidden if true, then default style is set to hidden,
 498  *                        default value false
 499  * @param boolean $title  if true, then title is displayed, default true
 500  *
 501  * @return String HTML code
 502  */
 503 function PMA_getHtmlForReplicationStatusTable($type, $hidden = false, $title = true)
 504 {
 505     global ${"{$type}_variables"};
 506     global ${"{$type}_variables_alerts"};
 507     global ${"{$type}_variables_oks"};
 508     global ${"server_{$type}_replication"};
 509     global ${"strReplicationStatus_{$type}"};
 510
 511     $html = '';
 512
 513     // TODO check the Masters server id?
 514     // seems to default to '1' when queried via SHOW VARIABLES ,
 515     // but resulted in error on the master when slave connects
 516     // [ERROR] Error reading packet from server: Misconfigured master
 517     // - server id was not set ( server_errno=1236)
 518     // [ERROR] Got fatal error 1236: 'Misconfigured master
 519     // - server id was not set' from master when reading data from binary log
 520     //
 521     //$server_id = $GLOBALS['dbi']->fetchValue(
 522     //    "SHOW VARIABLES LIKE 'server_id'", 0, 1
 523     //);
 524
 525     $html .= '<div id="replication_' . $type . '_section" style="';
 526     $html .= ($hidden ? 'display: none;' : '') . '"> ';
 527
 528     if ($title) {
 529         if ($type == 'master') {
 530             $html .= '<h4><a name="replication_' . $type . '"></a>';
 531             $html .= __('Master status') . '</h4>';
 532         } else {
 533             $html .= '<h4><a name="replication_' . $type . '"></a>';
 534             $html .= __('Slave status') . '</h4>';
 535         }
 536     } else {
 537         $html .= '<br />';
 538     }
 539
 540     $html .= '   <table id="server' . $type . 'replicationsummary" class="data"> ';
 541     $html .= '   <thead>';
 542     $html .= '    <tr>';
 543     $html .= '     <th>' . __('Variable') . '</th>';
 544     $html .= '        <th>' . __('Value') . '</th>';
 545     $html .= '    </tr>';
 546     $html .= '   </thead>';
 547     $html .= '   <tbody>';
 548
 549     foreach (${"{$type}_variables"} as $variable) {
 550         $html .= '   <tr>';
 551         $html .= '     <td class="name">';
 552         $html .= htmlspecialchars($variable);
 553         $html .= '     </td>';
 554         $html .= '     <td class="value">';
 555
 556         // TODO change to regexp or something, to allow for negative match
 557         if (isset(${"{$type}_variables_alerts"}[$variable])
 558             && ${"{$type}_variables_alerts"}[$variable] == ${"server_{$type}_replication"}[0][$variable]
 559         ) {
 560             $html .= '<span class="attention">';
 561
 562         } elseif (isset(${"{$type}_variables_oks"}[$variable])
 563             && ${"{$type}_variables_oks"}[$variable] == ${"server_{$type}_replication"}[0][$variable]
 564         ) {
 565             $html .= '<span class="allfine">';
 566         } else {
 567             $html .= '<span>';
 568         }
 569         // allow wrapping long table lists into multiple lines
 570         static $variables_wrap = array(
 571             'Replicate_Do_DB', 'Replicate_Ignore_DB',
 572             'Replicate_Do_Table', 'Replicate_Ignore_Table',
 573             'Replicate_Wild_Do_Table', 'Replicate_Wild_Ignore_Table');
 574         if (in_array($variable, $variables_wrap)) {
 575             $html .= htmlspecialchars(str_replace(
 576                 ',',
 577                 ', ',
 578                 ${"server_{$type}_replication"}[0][$variable]
 579             ));
 580         } else {
 581             $html .= htmlspecialchars(${"server_{$type}_replication"}[0][$variable]);
 582         }
 583         $html .= '</span>';
 584
 585         $html .= '  </td>';
 586         $html .= ' </tr>';
 587     }
 588
 589     $html .= '   </tbody>';
 590     $html .= ' </table>';
 591     $html .= ' <br />';
 592     $html .= '</div>';
 593
 594     return $html;
 595 }
 596
 597 /**
 598  * returns html code for table with slave users connected to this master
 599  *
 600  * @param boolean $hidden - if true, then default style is set to hidden,
 601  *                        - default value false
 602  *
 603  * @return string
 604  */
 605 function PMA_getHtmlForReplicationSlavesTable($hidden = false)
 606 {
 607     $html = '';
 608     // Fetch data
 609     $data = $GLOBALS['dbi']->fetchResult('SHOW SLAVE HOSTS', null, null);
 610
 611     $html .= '  <br />';
 612     $html .= '  <div id="replication_slaves_section" style="';
 613     $html .=  ($hidden ? 'display: none;' : '') . '"> ';
 614     $html .= '    <table class="data">';
 615     $html .= '    <thead>';
 616     $html .= '      <tr>';
 617     $html .= '        <th>' . __('Server ID') . '</th>';
 618     $html .= '        <th>' . __('Host') . '</th>';
 619     $html .= '      </tr>';
 620     $html .= '    </thead>';
 621     $html .= '    <tbody>';
 622
 623     foreach ($data as $slave) {
 624         $html .= '    <tr>';
 625         $html .= '      <td class="value">' . $slave['Server_id'] . '</td>';
 626         $html .= '      <td class="value">' . $slave['Host'] . '</td>';
 627         $html .= '    </tr>';
 628     }
 629
 630     $html .= '    </tbody>';
 631     $html .= '    </table>';
 632     $html .= '    <br />';
 633     $html .= Message::notice(
 634         __(
 635             'Only slaves started with the '
 636             . '--report-host=host_name option are visible in this list.'
 637         )
 638     )->getDisplay();
 639     $html .= '    <br />';
 640     $html .= '  </div>';
 641
 642     return $html;
 643 }
 644
 645 /**
 646  * get the correct username and hostname lengths for this MySQL server
 647  *
 648  * @return array   username length, hostname length
 649  */
 650 function PMA_replicationGetUsernameHostnameLength()
 651 {
 652     $fields_info = $GLOBALS['dbi']->getColumns('mysql', 'user');
 653     $username_length = 16;
 654     $hostname_length = 41;
 655     foreach ($fields_info as $val) {
 656         if ($val['Field'] == 'User') {
 657             strtok($val['Type'], '()');
 658             $v = strtok('()');
 659             if (is_int($v)) {
 660                 $username_length = $v;
 661             }
 662         } elseif ($val['Field'] == 'Host') {
 663             strtok($val['Type'], '()');
 664             $v = strtok('()');
 665             if (is_int($v)) {
 666                 $hostname_length = $v;
 667             }
 668         }
 669     }
 670     return array($username_length, $hostname_length);
 671 }
 672
 673 /**
 674  * returns html code to add a replication slave user to the master
 675  *
 676  * @return String HTML code
 677  */
 678 function PMA_getHtmlForReplicationMasterAddSlaveuser()
 679 {
 680     $html = '';
 681     list($username_length, $hostname_length)
 682         = PMA_replicationGetUsernameHostnameLength();
 683
 684     if (isset($_REQUEST['username']) && strlen($_REQUEST['username']) === 0) {
 685         $GLOBALS['pred_username'] = 'any';
 686     }
 687     $html .= '<div id="master_addslaveuser_gui">';
 688     $html .= '<form autocomplete="off" method="post" ';
 689     $html .= 'action="server_privileges.php"';
 690     $html .= ' onsubmit="return checkAddUser(this);">';
 691     $html .= URL::getHiddenInputs('', '');
 692     $html .= '<fieldset id="fieldset_add_user_login">'
 693         . '<legend>' . __('Add slave replication user') . '</legend>'
 694         . PMA_getHtmlForAddUserLoginForm($username_length)
 695         . '<div class="item">'
 696         . '<label for="select_pred_hostname">'
 697         . '    ' . __('Host:')
 698         . '</label>'
 699         . '<span class="options">'
 700         . '    <select name="pred_hostname" id="select_pred_hostname" title="'
 701         . __('Host') . '"';
 702
 703     $_current_user = $GLOBALS['dbi']->fetchValue('SELECT USER();');
 704     if (! empty($_current_user)) {
 705         $thishost = str_replace(
 706             "'",
 707             '',
 708             mb_substr(
 709                 $_current_user,
 710                 (mb_strrpos($_current_user, '@') + 1)
 711             )
 712         );
 713         if ($thishost != 'localhost' && $thishost != '127.0.0.1') {
 714             $html .= ' data-thishost="' . htmlspecialchars($thishost) . '" ';
 715         } else {
 716             unset($thishost);
 717         }
 718     }
 719     $html .= '>' . "\n";
 720     unset($_current_user);
 721
 722     // when we start editing a user, $GLOBALS['pred_hostname'] is not defined
 723     if (! isset($GLOBALS['pred_hostname']) && isset($_REQUEST['hostname'])) {
 724         switch (mb_strtolower($_REQUEST['hostname'])) {
 725         case 'localhost':
 726         case '127.0.0.1':
 727             $GLOBALS['pred_hostname'] = 'localhost';
 728             break;
 729         case '%':
 730             $GLOBALS['pred_hostname'] = 'any';
 731             break;
 732         default:
 733             $GLOBALS['pred_hostname'] = 'userdefined';
 734             break;
 735         }
 736     }
 737     $html .= '        <option value="any"'
 738         . ((isset($GLOBALS['pred_hostname']) && $GLOBALS['pred_hostname'] == 'any')
 739         ? ' selected="selected"' : '') . '>' . __('Any host')
 740         . '</option>'
 741         . '        <option value="localhost"'
 742         . ((isset($GLOBALS['pred_hostname'])
 743             && $GLOBALS['pred_hostname'] == 'localhost')
 744         ? ' selected="selected"' : '') . '>' . __('Local')
 745         . '</option>';
 746
 747     if (!empty($thishost)) {
 748         $html .= '        <option value="thishost"'
 749             . ((isset($GLOBALS['pred_hostname'])
 750                 && $GLOBALS['pred_hostname'] == 'thishost')
 751             ? ' selected="selected"' : '') . '>' . __('This Host')
 752             . '</option>';
 753     }
 754     unset($thishost);
 755
 756     $html .= PMA_getHtmlForTableInfoForm($hostname_length);
 757     $html .= '</form>';
 758     $html .= '</div>';
 759
 760     return $html;
 761 }
 762 /**
 763  *  returns html code to add a replication slave user to the master
 764  *
 765  * @param int $username_length Username length
 766  *
 767  * @return String HTML code
 768  */
 769 function PMA_getHtmlForAddUserLoginForm($username_length)
 770 {
 771     $html = '<input type="hidden" name="grant_count" value="25" />'
 772         . '<input type="hidden" name="createdb" id="createdb_0" value="0" />'
 773         . '<input id="checkbox_Repl_slave_priv" type="hidden"'
 774         . ' title="Needed for the replication slaves." '
 775         . 'value="Y" name="Repl_slave_priv"/>'
 776         . '<input id="checkbox_Repl_client_priv" type="hidden" '
 777         . 'title="Needed for the replication slaves."'
 778         . ' value="Y" name="Repl_client_priv"/> '
 779         . '<input type="hidden" name="sr_take_action" value="true" />'
 780         . '<div class="item">'
 781         . '<label for="select_pred_username">'
 782         . '    ' . __('User name:')
 783         . '</label>'
 784         . '<span class="options">'
 785         . '    <select name="pred_username" id="select_pred_username" '
 786         .         'title="' . __('User name') . '">'
 787         . '        <option value="any"'
 788         . ((isset($GLOBALS['pred_username'])
 789             && $GLOBALS['pred_username'] == 'any') ? ' selected="selected"' : '')
 790         . '>' . __('Any user') . '</option>'
 791         . '        <option value="userdefined"'
 792         . ((! isset($GLOBALS['pred_username'])
 793             || $GLOBALS['pred_username'] == 'userdefined')
 794             ? ' selected="selected"' : '')
 795         . '>' . __('Use text field:') . '</option>'
 796         . '    </select>'
 797         . '</span>'
 798         . '<input type="text" name="username" id="pma_username" maxlength="'
 799         . $username_length . '" title="' . __('User name') . '"'
 800         . (empty($_REQUEST['username']) ? '' : ' value="'
 801         . (isset($GLOBALS['new_username'])
 802             ? $GLOBALS['new_username']
 803             : htmlspecialchars($_REQUEST['username'])) . '"')
 804         . ' />'
 805         . '</div>';
 806
 807     return $html;
 808 }
 809
 810 /**
 811  * returns HTML for TableInfoForm
 812  *
 813  * @param int $hostname_length Selected hostname length
 814  *
 815  * @return String HTML code
 816  */
 817 function PMA_getHtmlForTableInfoForm($hostname_length)
 818 {
 819     $html = '        <option value="hosttable"'
 820         . ((isset($GLOBALS['pred_hostname'])
 821             && $GLOBALS['pred_hostname'] == 'hosttable')
 822         ? ' selected="selected"' : '') . '>' . __('Use Host Table')
 823         . '</option>'
 824         . '        <option value="userdefined"'
 825         . ((isset($GLOBALS['pred_hostname'])
 826             && $GLOBALS['pred_hostname'] == 'userdefined')
 827         ? ' selected="selected"' : '')
 828         . '>' . __('Use text field:') . '</option>'
 829         . '    </select>'
 830         . '</span>'
 831         . '<input type="text" name="hostname" id="pma_hostname" maxlength="'
 832         . $hostname_length . '" value="'
 833         . (isset($_REQUEST['hostname']) ? htmlspecialchars($_REQUEST['hostname']) : '')
 834         . '" title="' . __('Host')
 835         . '" />'
 836         . PMA\libraries\Util::showHint(
 837             __(
 838                 'When Host table is used, this field is ignored '
 839                 . 'and values stored in Host table are used instead.'
 840             )
 841         )
 842         . '</div>'
 843         . '<div class="item">'
 844         . '<label for="select_pred_password">'
 845         . '    ' . __('Password:')
 846         . '</label>'
 847         . '<span class="options">'
 848         . '    <select name="pred_password" id="select_pred_password" title="'
 849         . __('Password') . '">'
 850         . '        <option value="none"';
 851     if (isset($_REQUEST['username'])) {
 852         $html .= '  selected="selected"';
 853     }
 854     $html .= '>' . __('No Password') . '</option>'
 855         . '        <option value="userdefined"'
 856         . (isset($_REQUEST['username']) ? '' : ' selected="selected"')
 857         . '>' . __('Use text field:') . '</option>'
 858         . '    </select>'
 859         . '</span>'
 860         . '<input type="password" id="text_pma_pw" name="pma_pw" title="'
 861         . __('Password') . '" />'
 862         . '</div>'
 863         . '<div class="item">'
 864         . '<label for="text_pma_pw2">'
 865         . '    ' . __('Re-type:')
 866         . '</label>'
 867         . '<span class="options">&nbsp;</span>'
 868         . '<input type="password" name="pma_pw2" id="text_pma_pw2" title="'
 869         . __('Re-type') . '" />'
 870         . '</div>'
 871         . '<div class="item">'
 872         . '<label for="button_generate_password">'
 873         . '    ' . __('Generate password:')
 874         . '</label>'
 875         . '<span class="options">'
 876         . '    <input type="button" class="button" '
 877         . 'id="button_generate_password" value="' . __('Generate')
 878         . '" onclick="suggestPassword(this.form)" />'
 879         . '</span>'
 880         . '<input type="text" name="generated_pw" id="generated_pw" />'
 881         . '</div>'
 882         . '</fieldset>';
 883     $html .= '<fieldset id="fieldset_user_privtable_footer" class="tblFooters">'
 884         . '    <input type="hidden" name="adduser_submit" value="1" />'
 885         . '    <input type="submit" id="adduser_submit" value="' . __('Go') . '" />'
 886         . '</fieldset>';
 887     return $html;
 888 }
 889
 890 /**
 891  * handle control requests
 892  *
 893  * @return NULL
 894  */
 895 function PMA_handleControlRequest()
 896 {
 897     if (isset($_REQUEST['sr_take_action'])) {
 898         $refresh = false;
 899         $result = false;
 900         $messageSuccess = null;
 901         $messageError = null;
 902
 903         if (isset($_REQUEST['slave_changemaster'])) {
 904             $result = PMA_handleRequestForSlaveChangeMaster();
 905         } elseif (isset($_REQUEST['sr_slave_server_control'])) {
 906             $result = PMA_handleRequestForSlaveServerControl();
 907             $refresh = true;
 908
 909             switch ($_REQUEST['sr_slave_action']) {
 910             case 'start':
 911                 $messageSuccess = __('Replication started successfully.');
 912                 $messageError = __('Error starting replication.');
 913                 break;
 914             case 'stop':
 915                 $messageSuccess = __('Replication stopped successfully.');
 916                 $messageError = __('Error stopping replication.');
 917                 break;
 918             case 'reset':
 919                 $messageSuccess = __('Replication resetting successfully.');
 920                 $messageError = __('Error resetting replication.');
 921                 break;
 922             default:
 923                 $messageSuccess = __('Success.');
 924                 $messageError = __('Error.');
 925                 break;
 926             }
 927         } elseif (isset($_REQUEST['sr_slave_skip_error'])) {
 928             $result = PMA_handleRequestForSlaveSkipError();
 929         }
 930
 931         if ($refresh) {
 932             $response = Response::getInstance();
 933             if ($response->isAjax()) {
 934                 $response->setRequestStatus($result);
 935                 $response->addJSON(
 936                     'message',
 937                     $result
 938                     ? Message::success($messageSuccess)
 939                     : Message::error($messageError)
 940                 );
 941             } else {
 942                 PMA_sendHeaderLocation(
 943                     './server_replication.php'
 944                     . URL::getCommonRaw($GLOBALS['url_params'])
 945                 );
 946             }
 947         }
 948         unset($refresh);
 949     }
 950 }
 951 /**
 952  * handle control requests for Slave Change Master
 953  *
 954  * @return boolean
 955  */
 956 function PMA_handleRequestForSlaveChangeMaster()
 957 {
 958     $sr = array();
 959     $_SESSION['replication']['m_username'] = $sr['username']
 960         = $GLOBALS['dbi']->escapeString($_REQUEST['username']);
 961     $_SESSION['replication']['m_password'] = $sr['pma_pw']
 962         = $GLOBALS['dbi']->escapeString($_REQUEST['pma_pw']);
 963     $_SESSION['replication']['m_hostname'] = $sr['hostname']
 964         = $GLOBALS['dbi']->escapeString($_REQUEST['hostname']);
 965     $_SESSION['replication']['m_port']     = $sr['port']
 966         = $GLOBALS['dbi']->escapeString($_REQUEST['text_port']);
 967     $_SESSION['replication']['m_correct']  = '';
 968     $_SESSION['replication']['sr_action_status'] = 'error';
 969     $_SESSION['replication']['sr_action_info'] = __('Unknown error');
 970
 971     // Attempt to connect to the new master server
 972     $link_to_master = PMA_Replication_connectToMaster(
 973         $sr['username'], $sr['pma_pw'], $sr['hostname'], $sr['port']
 974     );
 975
 976     if (! $link_to_master) {
 977         $_SESSION['replication']['sr_action_status'] = 'error';
 978         $_SESSION['replication']['sr_action_info'] = sprintf(
 979             __('Unable to connect to master %s.'),
 980             htmlspecialchars($sr['hostname'])
 981         );
 982     } else {
 983         // Read the current master position
 984         $position = PMA_Replication_Slave_binLogMaster($link_to_master);
 985
 986         if (empty($position)) {
 987             $_SESSION['replication']['sr_action_status'] = 'error';
 988             $_SESSION['replication']['sr_action_info']
 989                 = __(
 990                     'Unable to read master log position. '
 991                     . 'Possible privilege problem on master.'
 992                 );
 993         } else {
 994             $_SESSION['replication']['m_correct']  = true;
 995
 996             if (! PMA_Replication_Slave_changeMaster(
 997                 $sr['username'],
 998                 $sr['pma_pw'],
 999                 $sr['hostname'],
1000                 $sr['port'],
1001                 $position,
1002                 true,
1003                 false
1004             )
1005             ) {
1006                 $_SESSION['replication']['sr_action_status'] = 'error';
1007                 $_SESSION['replication']['sr_action_info']
1008                     = __('Unable to change master!');
1009             } else {
1010                 $_SESSION['replication']['sr_action_status'] = 'success';
1011                 $_SESSION['replication']['sr_action_info'] = sprintf(
1012                     __('Master server changed successfully to %s.'),
1013                     htmlspecialchars($sr['hostname'])
1014                 );
1015             }
1016         }
1017     }
1018
1019     return $_SESSION['replication']['sr_action_status'] === 'success';
1020 }
1021
1022 /**
1023  * handle control requests for Slave Server Control
1024  *
1025  * @return boolean
1026  */
1027 function PMA_handleRequestForSlaveServerControl()
1028 {
1029     if (empty($_REQUEST['sr_slave_control_parm'])) {
1030         $_REQUEST['sr_slave_control_parm'] = null;
1031     }
1032     if ($_REQUEST['sr_slave_action'] == 'reset') {
1033         $qStop = PMA_Replication_Slave_control("STOP");
1034         $qReset = $GLOBALS['dbi']->tryQuery("RESET SLAVE;");
1035         $qStart = PMA_Replication_Slave_control("START");
1036
1037         $result = ($qStop !== false && $qStop !== -1 &&
1038             $qReset !== false && $qReset !== -1 &&
1039             $qStart !== false && $qStart !== -1);
1040     } else {
1041         $qControl = PMA_Replication_Slave_control(
1042             $_REQUEST['sr_slave_action'],
1043             $_REQUEST['sr_slave_control_parm']
1044         );
1045
1046         $result = ($qControl !== false && $qControl !== -1);
1047     }
1048
1049     return $result;
1050 }
1051
1052 /**
1053  * handle control requests for Slave Skip Error
1054  *
1055  * @return boolean
1056  */
1057 function PMA_handleRequestForSlaveSkipError()
1058 {
1059     $count = 1;
1060     if (isset($_REQUEST['sr_skip_errors_count'])) {
1061         $count = $_REQUEST['sr_skip_errors_count'] * 1;
1062     }
1063
1064     $qStop = PMA_Replication_Slave_control("STOP");
1065     $qSkip = $GLOBALS['dbi']->tryQuery(
1066         "SET GLOBAL SQL_SLAVE_SKIP_COUNTER = " . $count . ";"
1067     );
1068     $qStart = PMA_Replication_Slave_control("START");
1069
1070     $result = ($qStop !== false && $qStop !== -1 &&
1071         $qSkip !== false && $qSkip !== -1 &&
1072         $qStart !== false && $qStart !== -1);
1073
1074     return $result;
1075 }