Revision 2218920 of "Extension:Astro" on mediawikiwiki{{Delete|Unmaintained, ancient, code posted on-wiki, several XSS vectors, half of it doesn't work anyway. Bonus: trivially breaks because of $wgRequest in parsing context}}
{{TNT|Unmaintained extension}}
{{TNT|Extension code in wiki}}
{{TNT|Extension
|type=tag
|status=experimental
|needs-updatephp=no
|license=GPL v2+
|description=
|download=See below
}}
The '''Astro extension''' provides capabilities to parse Astronomical Equatorial coordinates and pass results into an article.
== Install ==
Create a file called 'astro_extension.php' in your <code>extensions/</code> directory, and add the following code:
=== Code ===
<source lang="php" enclose="div">
<?php
# Astro Extension
# Extract astronomical coordinates from astro_params http request's parameter.
#
# Example Code
#
# <astro>{ra_hour}<sup>h</sup> {ra_min}<sup>m</sup> {ra_sec}<sup>s</sup> {dec_deg}° {dec_min}′ {dec_sec}″</astro>
#
$wgExtensionFunctions[] = "wfAstroExtension";
$wgExtensionCredits['parserhook'][] = array(
'name' => 'Astro',
'author' => 'Friendlystar',
'description' => 'adds <astro> tag, for astronomical coordinates insertion ',
'url' => 'http://www.mediawiki.org/wiki/Extension:Astro'
);
/* DO NOT EDIT BEYOND THIS LINE */
function wfAstroExtension() {
global $wgParser;
$wgParser->setHook( "astro", "astro" );
$wgParser->setHook( "astro_ra", "astro_ra" );
$wgParser->setHook( "astro_dec", "astro_dec" );
}
# The callback function for converting the input text to HTML output
function astro($input)
{
global $wgRequest, $wgOut;
#$input = $wgOut->parse($input, false);
#return $input;
#
/*
#new method to parse: http://meta.wikimedia.org/wiki/MediaWiki_extensions_FAQ
$localParser = new Parser();
$output = $localParser->parse("<big>$input</big>", $parser->mTitle, $parser->mOptions);
$text = $output->getText();
*/
$title = $wgRequest->getVal( 'title', false );
$mTitle = Title::makeTitle( NS_MAIN, $title );
$coor = $wgRequest->getVal( 'astro_params', false );
if ($coor) {
$p = new astro_coord( $coor );
if ($p->error) {
return $p->error;
} else {
$search = array(
"{ra}", "{ra_hour}", "{ra_min}", "{ra_sec}", "{ra-in-deg}",
"{dec}", "{dec_deg}", "{dec_min}", "{dec_sec}",
"{dec_deg_url}", "{dec_deg_html}",
"{angle}", "{angle-in-deg}", "{view}",
"{box}", "{box_size}", "{box_width}", "{box_height}", "{box_color}",
"{name}" );
$replace = array(
$p->ra, $p->ra_hour, $p->ra_min, $p->ra_sec, $p->ra*15,
$p->dec, $p->dec_deg, $p->dec_min, $p->dec_sec,
str_replace( '+', '%2B', $p->dec_deg), str_replace( '-', '−', $p->dec_deg),
$p->angle, $p->angle/60, $wgRequest->getVal( 'view', '' ),
$wgRequest->getVal( 'astro_pointer', '' ), $wgRequest->getVal( 'astro_pointer_size', '' ), $wgRequest->getVal( 'astro_pointer_width', '' ), $wgRequest->getVal( 'astro_pointer_height', '' ), $wgRequest->getVal( 'astro_pointer_color', '' ),
$p->name
);
#return $wgParser->parse(str_replace( $search, $replace, $input ), $mTitle, ParserOptions::newFromUser($wgUser), false, false)->getText();
return str_replace( $search, $replace, $input );
}
} else {
return "(Undefined)";
}
/**/
}
# The callback function for converting the input text to HTML output
function astro_ra($input)
{
global $wgRequest;
$coor = $wgRequest->getVal( 'astro_params', false );
if ($coor) {
$p = new astro_param( $coor, $title );
return $p->ra;
}
return $text;
}
# The callback function for converting the input text to HTML output
function astro_dec($input)
{
global $wgRequest;
$coor = $wgRequest->getVal( 'astro_params', false );
if ($coor) {
$p = new astro_param( $coor, $title );
return $p->dec;
}
return $text;
}
/**
* Parse astro parameters
*/
class astro_coord {
var $ra;
var $dec;
var $ra_hour;
var $ra_min;
var $ra_sec;
var $dec_deg;
var $dec_min;
var $dec_sec;
var $angle;
var $name;
var $pieces;
var $error;
var $coor;
var $title;
/**
* Constructor:
* Read coordinates, and if there is a range, read the range
*/
function astro_coord( $param )
{
$this->pieces = explode(" ", str_replace( ' ', ' +', str_replace( '_', ' ', $param ) ));
if ($i = strpos($this->pieces[0],';')) {
/* ra;dec (two values seperated by a semicolon) */
$this->ra = substr($this->pieces[0],0,$i);
$this->dec = substr($this->pieces[0],$i+1);
array_shift($this->pieces);
$this->angle = array_shift($this->pieces);
$this->name = array_shift($this->pieces);
$this->dec = str_replace( '−', '-', str_replace( '\u2212', '-', $this->dec ) );
$this->ra_hour = floor($this->ra);
$this->ra_min = floor(($this->ra-$this->ra_hour)*60);
$this->ra_sec = round((($this->ra-$this->ra_hour)*60-$this->ra_min)*60*10000)/10000;
$decfactor = 1.0 ;
if (strpos($this->dec,'-')!==false) {
$decfactor = -1.0 ;
$this->dec = -$this->dec;
}
$dec_int = floor($this->dec);
$this->dec_deg = ($decfactor==1.0?'+':'-').$dec_int;
$this->dec_min = floor(($this->dec-$dec_int)*60);
$this->dec_sec = round((($this->dec-$dec_int)*60-$this->dec_min)*60*10000)/10000;
} else {
$this->ra_hour = array_shift($this->pieces);
$this->ra_min = array_shift($this->pieces);
$this->ra_sec = array_shift($this->pieces);
$this->dec_deg = array_shift($this->pieces);
$this->dec_min = array_shift($this->pieces);
$this->dec_sec = array_shift($this->pieces);
$this->angle = array_shift($this->pieces);
$this->name = array_shift($this->pieces);
$decfactor = 1.0 ;
$this->dec_deg = str_replace( '−', '-', str_replace( '\u2212', '-', $this->dec_deg ) );
if (strpos($this->dec_deg,'-')!==false) {
$decfactor = -1.0 ;
}
$this->ra = $this->ra_hour + $this->ra_min/60.0 + $this->ra_sec/3600.0;
$this->dec = $this->dec_deg + $decfactor*($this->dec_min/60.0 + $this->dec_sec/3600.0);
if (strpos($this->dec_deg,'-')===false && strpos($this->dec_deg,'+')===false) {
$this->dec_deg = '+' . $this->dec_deg;
}
}
if ($this->ra > 24 or $this->ra < 0
or $this->dec > 90 or $this->dec < -90
or $ra_min > 60 or $ra_min < 0
or $dec_min > 60 or $dec_min < 0
or $ra_sec > 60 or $ra_sec < 0
or $dec_sec > 60 or $dec_sec < 0) {
$this->error = "Out of range";
}
}
}
</source>
=== LocalSettings changes ===
Then simply add the following line to the '''end''' of your <code>LocalSettings.php</code> file:
<source lang="php">
include("extensions/astro_extension.php");
</source>
You also have to make sure the page with extension is not cached.
One of the ways to turn off cache is to add line in your <code>LocalSettings.php</code> file:
<source lang="php">
$wgCachePages = false;
</source>
and you are ready to go! Go to the sandbox and see if it works!
== Usage ==
Basic syntax for embedding data in article, as detailed in the code:
<astro>{ra_hour}<sup>h</sup> {ra_min}<sup>m</sup> {ra_sec}<sup>s</sup> {dec_deg_html}° {dec_min}′ {dec_sec}″</astro>
For details go to [http://wikisky.org/w/index.php?title=Astro_extension&astro_params=12_22_54.9_+15_49_21_15_M100 http://wikisky.org/w/index.php?title=Astro_extension&astro_params=12_22_54.9_+15_49_21_15_M100]
Feel free to contact me [[w:User talk:Friendlystar<Friendlystar]]
== Comments ==
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