freifunk-versions/freifunk-versions.php

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<?php
/*
Plugin Name: Freifunk Hamburg Firmware Shortcodes
Plugin URI: https://github.com/freifunkhamburg/freifunk-versions
Description: Shortcodes for Freifunk Hamburg firmware information
Author: Freifunk Hamburg
Author URI: https://github.com/freifunkhamburg
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Author: Martin Schuette
Author URI: https://mschuette.name/
Licence: 2-Clause BSD
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*/
define( 'FIRMWARE_BASE_URL', 'https://updates.hamburg.freifunk.net' );
define( 'FIRMWARE_CACHETIME', 1 );
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// Download firmware list and return the current release.
function firmware_get_release( $base_url, $domain, $branch ) {
$cache_key = 'ff_firmware_release_' . $domain . '_' . $branch;
if ( false === ( $sw_ver = get_transient( $cache_key ) ) ) {
$sw_ver = '???';
$url = "$base_url/$domain/$branch/images/images.list";
$http_response = wp_remote_get( $url );
$input = wp_remote_retrieve_body( $http_response );
foreach ( explode( "\n", $input ) as $line ) {
$ret = sscanf( $line, 'RELEASE=%s', $sw_ver );
if ( $ret === 1 ) {
// break processing on first matching line
$cachetime = FIRMWARE_CACHETIME * MINUTE_IN_SECONDS;
set_transient( $cache_key, $sw_ver, $cachetime );
break;
}
}
}
return $sw_ver;
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}
// Download firmware list and return the firmware versions.
// The returned array is structured like this:
// versions[hardware_name][hardware_version][factory|upgrade] => URL
function firmware_get_versions( $base_url, $domain, $branch ) {
$release = firmware_get_release( $base_url, $domain, $branch );
$factory_regex = "/^(?:.*$release-)(.*)\.(?:bin|img|img\.gz)$/";
$upgrade_regex = "/^(?:.*$release-)(.*)(?:-sysupgrade\..*)$/";
$cache_key = 'ff_firmware_versions_' . $domain . '_' . $branch;
if ( WP_DEBUG || ( false === ( $versions = get_transient( $cache_key ) ) ) ) {
$versions = [];
$url = "$base_url/$domain/$branch/images/images.list";
$http_response = wp_remote_get( $url );
$input = wp_remote_retrieve_body( $http_response );
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foreach ( explode( "\n", $input ) as $line ) {
$ret = sscanf( $line, '%s %s', $folder, $filename );
if ( $ret !== 2 ) {
continue;
}
$url = "$base_url/$domain/$branch/images/$folder/$filename";
if ( $folder === 'sysupgrade' ) {
$result = firmware_parse_version( $filename, $upgrade_regex );
if ( $result !== NULL ) {
$versions[$result[0]][$result[1]]['upgrade'] = $url;
}
} else {
$result = firmware_parse_version( $filename, $factory_regex );
if ( $result !== NULL ) {
$versions[$result[0]][$result[1]]['factory'] = $url;
}
}
}
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$cachetime = FIRMWARE_CACHETIME * MINUTE_IN_SECONDS;
set_transient( $cache_key, $versions, $cachetime );
}
return $versions;
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}
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function firmware_parse_version( $filename, $regex ) {
if ( preg_match( $regex, $filename, $matches ) ) {
$hw = $matches[1];
$hw_ver = '1';
if ( preg_match( '/^(.*?)-?v(\d+)$/', $hw, $matches ) ) {
$hw = $matches[1];
$hw_ver = $matches[2];
}
return [$hw, $hw_ver];
} else {
return NULL;
}
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}
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// Example:
// [ff_firmware_release]
// [ff_firmware_release domain="ffhh" branch="experimental"]
function firmware_release( $atts, $content, $name ) {
$domain = 'multi';
$branch = 'stable';
if ( is_array( $atts ) ) {
if ( array_key_exists( 'domain', $atts ) && ! empty( $atts['domain'] ) ) {
$domain = $atts['domain'];
}
if ( array_key_exists( 'branch', $atts ) && ! empty( $atts['branch'] ) ) {
$branch = $atts['branch'];
}
}
$sw_ver = firmware_get_release( FIRMWARE_BASE_URL, $domain, $branch );
$outstr = "<span class=\"ff $name\">$sw_ver</span>";
return $outstr;
}
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// Example:
// [ff_firmware_versions]
// [ff_firmware_versions prefix="ubiquiti,ubnt" filter="ac-pro"]
function firmware_versions( $atts, $content, $name ) {
$domain = 'multi';
$branch = 'stable';
$prefix = false;
$filter = false;
if ( is_array( $atts ) ) {
if ( array_key_exists( 'domain', $atts ) && ! empty( $atts['domain'] ) ) {
$domain = $atts['domain'];
}
if ( array_key_exists( 'branch', $atts ) && ! empty( $atts['branch'] ) ) {
$branch = $atts['branch'];
}
if ( array_key_exists( 'prefix', $atts ) && ! empty( $atts['prefix'] ) ) {
$prefix = explode ( ',', $atts['prefix'] );
}
if ( array_key_exists( 'filter', $atts ) && ! empty( $atts['filter'] ) ) {
$filter = explode ( ',', $atts['filter'] );
}
}
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$versions = firmware_get_versions( FIRMWARE_BASE_URL, $domain, $branch );
if ( $prefix ) {
$filtered = [];
foreach ( $versions as $hw => $hw_versions ) {
foreach ( $prefix as $pfx ) {
if ( strpos ( $hw, $pfx ) === 0 ) {
$hw = substr( $hw, strlen($pfx) );
$hw = trim( $hw, '-' );
$filtered[$hw] = $hw_versions;
}
}
}
$versions = $filtered;
}
if ( $filter ) {
$filtered = [];
foreach ( $versions as $hw => $hw_versions ) {
foreach ( $filter as $flt ) {
if ( strpos ( $hw, $flt ) === FALSE ) {
$filtered[$hw] = $hw_versions;
}
}
}
$versions = $filtered;
}
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$outstr = "\n<div class=\"ff $name\">";
$outstr .= "\n<table>\n<tr><th>Modell</th><th>Erstinstallation</th><th>Aktualisierung</th></tr>";
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ksort($versions);
foreach ( $versions as $hw => $hw_versions ) {
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$hw = firmware_beautify_hw_name( $hw, $prefix );
$outstr .= sprintf( "\n<tr><td>%s</td>", $hw );
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// factory images
$factory_links = [];
foreach ( $hw_versions as $hw_ver => $urls ) {
if ( ! array_key_exists( 'factory', $urls ) ) {
continue;
}
$factory_url = $urls['factory'];
$factory_links[] = "<a href=\"$factory_url\">$hw_ver.x</a>";
}
if ( count($factory_links) > 0 ) {
$outstr .= '<td>Version ' . join( ', ', $factory_links ) . '</td>';
} else {
$outstr .= '<td></td>';
}
// upgrade images
$upgrade_links = [];
foreach ( $hw_versions as $hw_ver => $urls ) {
if ( ! array_key_exists( 'upgrade', $urls ) ) {
continue;
}
$upgrade_url = $urls['upgrade'];
$upgrade_links[] = "<a href=\"$upgrade_url\">$hw_ver.x</a>";
}
if ( count($upgrade_links) > 0 ) {
$outstr .= '<td>Version ' . join( ', ', $upgrade_links ) . '</td>';
} else {
$outstr .= '<td></td>';
}
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$outstr .= "</tr>";
}
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$outstr .= "\n</table>";
$outstr .= "\n</div>\n";
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return $outstr;
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}
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// Add capitalization and whitespace to the hardware model name.
function firmware_beautify_hw_name( $hw, $prefix ) {
$vendor = '';
if ( $prefix ) {
$vendor = $prefix[0];
}
if ( $vendor === '8devices' ) {
$hw = str_replace( 'carambola2-board', 'carambola 2', $hw );
$hw = ucwords( $hw );
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} elseif ( $vendor === 'buffalo' ) {
$hw = str_replace( 'hp-ag300h-wzr-600dhp', 'hp-ag300h & wzr-600dhp', $hw );
$hw = strtoupper( $hw );
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} elseif ( $vendor === 'd-link' ) {
$hw = str_replace( '-', ' ', $hw );
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$hw = str_replace( 'dir ', 'dir-', $hw );
$hw = strtoupper( $hw );
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} elseif ( $vendor === 'onion' ) {
$hw = ucwords( $hw );
} elseif ( $vendor === 'tp-link' ) {
$hw = str_replace( 'n-nd', 'n/nd', $hw );
$hw = str_replace( '-', ' ', $hw );
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$hw = str_replace( 'tl ', 'tl-', $hw );
$hw = strtoupper( $hw );
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$hw = str_replace( 'ARCHER', 'Archer', $hw );
} elseif ( $vendor === 'ubiquiti' ) {
$hw = str_replace( '-', ' ', $hw );
$hw = ucwords( $hw );
$hw = str_replace( 'Ac', 'AC', $hw );
$hw = str_replace( 'Ap', 'AP', $hw );
$hw = str_replace( 'Erx', 'ER-X', $hw );
$hw = str_replace( 'Sfp', 'SFP', $hw );
$hw = str_replace( 'Xw', 'XW', $hw );
} else {
$hw = strtoupper( $hw );
}
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return $hw;
}
if ( ! shortcode_exists( 'ff_firmware_release' ) ) {
add_shortcode( 'ff_firmware_release', 'firmware_release' );
}
if ( ! shortcode_exists( 'ff_firmware_versions' ) ) {
add_shortcode( 'ff_firmware_versions', 'firmware_versions' );
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}