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#!/usr/bin/env php
<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2009, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
# Abort if called from a web server
define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
$helptext = <<<ENDOFHELP
console.php - provide an interactive PHP interpreter for testing
ENDOFHELP;
require_once INSTALLDIR.'/scripts/commandline.inc';
if (function_exists('posix_isatty')) {
define('CONSOLE_INTERACTIVE', posix_isatty(0));
} else {
// Windows? Assume we're on a terminal. :P
define('CONSOLE_INTERACTIVE', false);
}
if (CONSOLE_INTERACTIVE) {
define('CONSOLE_READLINE', function_exists('readline'));
}
if (CONSOLE_READLINE && CONSOLE_INTERACTIVE && file_exists(CONSOLE_HISTORY)) {
define(CONSOLE_HISTORY, getenv("HOME") . "/.statusnet_console_history");
readline_read_history(CONSOLE_HISTORY);
}
function read_input_line($prompt)
{
if (CONSOLE_INTERACTIVE) {
if (CONSOLE_READLINE) {
$line = readline($prompt);
readline_add_history($line);
return $line;
} else {
return readline_emulation($prompt);
}
} else {
return fgets(STDIN);
}
}
/**
* On Unix-like systems where PHP readline extension is not present,
* -cough- Mac OS X -cough- we can shell out to bash to do it for us.
* This lets us at least handle things like arrow keys, but we do not
* get any entry history. :(
*
* Shamelessly ripped from when I wrote the same code for MediaWiki. :)
* @author Brion Vibber <brion@status.net>
*
* @param string $prompt
* @return mixed string on success, false on fail or EOF
*/
function readline_emulation($prompt)
{
if(file_exists(trim(shell_exec('which bash')))) {
$encPrompt = escapeshellarg($prompt);
$command = "read -er -p $encPrompt && echo \"\$REPLY\"";
$encCommand = escapeshellarg($command);
$metaCommand = "bash -c $encCommand";
// passthru passes our STDIN and TTY to the child...
// We can pull the returned string via output buffering.
ob_start();
$retval = false;
passthru($metaCommand, $retval);
$line = ob_get_contents();
ob_end_clean();
if ($retval == 0) {
return $line;
} elseif ($retval == 127) {
// Couldn't execute bash even though we thought we saw it.
// Shell probably spit out an error message, sorry :(
// Fall through to fgets()...
} else {
// EOF/ctrl+D
return false;
}
}
// Fallback... we'll have no editing controls, EWWW
if (feof(STDIN)) {
return false;
}
print $prompt;
return fgets(STDIN);
}
function console_help()
{
print "Welcome to StatusNet's interactive PHP console!\n";
print "Type some PHP code and it'll execute...\n";
print "\n";
print "Hint: return a value of any type to output it via var_export():\n";
print " \$profile = new Profile();\n";
print " \$profile->find();\n";
print " \$profile->fetch();\n";
print " return \$profile;\n";
print "\n";
print "Note that PHP is cranky and you can easily kill your session by mistyping.\n";
print "\n";
print "Type ctrl+D or enter 'exit' to exit.\n";
}
print "StatusNet interactive PHP console... type ctrl+D or enter 'exit' to exit.\n";
$prompt = common_config('site', 'name') . '> ';
while (!feof(STDIN)) {
$line = read_input_line($prompt);
if ($line === false) {
print "\n";
break;
} elseif ($line !== '') {
try {
if (trim($line) == 'exit') {
break;
} elseif (trim($line) == 'help') {
console_help();
continue;
}
// Let's do this!
$result = eval($line);
if ($result === false) {
// parse error
} elseif ($result === null) {
// no return
} else {
// return value from eval'd code
var_export($result);
}
} catch(Exception $e) {
print get_class($e) . ": " . $e->getMessage() . "\n";
}
}
print "\n";
}
if (CONSOLE_READLINE && CONSOLE_INTERACTIVE) {
@readline_write_history(CONSOLE_HISTORY);
}
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