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<?php
/**
* @file
* Tweeper - a Twitter to RSS web scraper.
*
* Copyright (C) 2013-2020 Antonio Ospite <ao2@ao2.it>
*
* This program 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.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
require_once 'autoload.php';
use Tweeper\Tweeper;
date_default_timezone_set('UTC');
/**
* Check if the script is being run from the command line.
*/
function is_cli() {
return (php_sapi_name() === "cli");
}
/**
* Show the script usage.
*/
function usage($argv) {
if (is_cli()) {
$usage = "{$argv[0]} [-e|-m <0|1>|-u <0|1>|-v <0|1>|-h|--help] <src_url>\n";
}
else {
$usage = htmlentities("{$_SERVER['SCRIPT_NAME']}?src_url=<src_url>&generate_enclosure=<0|1>&show_usernames=<0|1>&show_multimedia=<0|1>&verbose_output=<0|1>");
}
return "usage: $usage";
}
/**
* Parse command line options.
*/
function parse_options_cli($argv, $argc) {
$options = [
'generate_enclosure' => FALSE,
'show_usernames' => TRUE,
'show_multimedia' => TRUE,
'verbose_output' => TRUE,
];
if ($argc < 2) {
return $options;
}
$cli_options = getopt("em:u:v:h", ["help"]);
foreach ($cli_options as $opt => $val) {
switch ($opt) {
case 'e':
$options['generate_enclosure'] = TRUE;
break;
case 'm':
$ret = filter_var($val, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
if (NULL === $ret) {
fwrite(STDERR, "Invalid argument for the -m option.\n");
fwrite(STDERR, usage($argv));
exit(1);
}
$options['show_multimedia'] = $val;
break;
case 'u':
$ret = filter_var($val, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
if (NULL === $ret) {
fwrite(STDERR, "Invalid argument for the -u option.\n");
fwrite(STDERR, usage($argv));
exit(1);
}
$options['show_usernames'] = $val;
break;
case 'v':
$ret = filter_var($val, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
if (NULL === $ret) {
fwrite(STDERR, "Invalid argument for the -v option.\n");
fwrite(STDERR, usage($argv));
exit(1);
}
$options['verbose_output'] = $val;
break;
case 'h':
case 'help':
echo usage($argv);
exit(0);
default:
fwrite(STDERR, usage($argv));
exit(1);
}
}
// For now assume that the URL is the lest argument, in the future we could
// switch to PHP >= 7.1 and use the $optind argument of getopt().
$options['src_url'] = array_pop($argv);
return $options;
}
/**
* Parse options passed from a query string.
*/
function parse_options_query_string() {
$options = [
'generate_enclosure' => FALSE,
'show_usernames' => TRUE,
'show_multimedia' => TRUE,
'verbose_output' => TRUE,
];
if (isset($_GET['src_url'])) {
$options['src_url'] = $_GET['src_url'];
}
if (isset($_GET['generate_enclosure'])) {
$options['generate_enclosure'] = $_GET['generate_enclosure'] == 1;
}
if (isset($_GET['show_multimedia'])) {
$options['show_multimedia'] = $_GET['show_multimedia'] != 0;
}
if (isset($_GET['show_usernames'])) {
$options['show_usernames'] = $_GET['show_usernames'] != 0;
}
if (isset($_GET['verbose_output'])) {
$options['verbose_output'] = $_GET['verbose_output'] != 0;
}
return $options;
}
if (is_cli()) {
$options = parse_options_cli($argv, $argc);
$error_stream = fopen('php://stderr', 'w');
}
else {
$options = parse_options_query_string();
$error_stream = fopen('php://output', 'w');
}
if (!isset($options['src_url'])) {
fwrite($error_stream, usage(is_cli() ? $argv : NULL));
exit(1);
}
$tweeper = new Tweeper($options['generate_enclosure'], $options['show_usernames'], $options['show_multimedia'], $options['verbose_output']);
$output = $tweeper->tweep($options['src_url']);
if (is_null($output)) {
exit(1);
}
echo $output;
|
