Add pledgie to the repo

- Service was discontinued in January 2018

pledgie/README

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+Pledgie
+
+Allows administrators to add a Pledgie-Donation Button to all their friendica pages. 
+This could be useful f.e. for public nodes that want to raise some money for server 
+maintenance costs.
+
+Usage: 
+Add the campaign number of your pledgie campaign in the first field. To find out the campaign number, 
+go to your Pledgie campaign webpage. The campaign number is the number at the end of the URL.
+
+Add a describtion of your campaign in the second field.

pledgie/pledgie.css

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+#pledgie-label {
+	float: left;
+	width: 300px;
+	margin-top: 10px;
+}
+
+#pledgie-campaign {
+	float: left;
+	margin-top: 10px;
+	width: 100px;
+}
+
+#pledgie-describe {
+	float: left;
+	margin-top: 10px;
+	width: 300px;
+}
+
+#pledgie-submit {
+	margin-top: 15px;
+}
+
+.pledgie {
+    text-align: center;
+	width: 100%;
+	margin-top: 25px;
+	font-size: 20px;
+}

pledgie/pledgie.php

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+<?php
+/**
+ * Name: Pledgie
+ * Description: Show link to a pledgie account for donating
+ * Version: 1.1
+ * Author: tony baldwin <tony@free-haven.org>
+ *         Hauke Altmann <https://snarl.de/profile/tugelblend>
+ *
+ */
+use Friendica\Core\Config;
+use Friendica\Core\Hook;
+use Friendica\Core\L10n;
+
+function pledgie_install() { 
+	Hook::register('page_end', 'addon/pledgie/pledgie.php', 'pledgie_active');
+	Hook::register('addon_settings', 'addon/pledgie/pledgie.php', 'pledgie_addon_settings');
+	Hook::register('addon_settings_post', 'addon/pledgie/pledgie.php', 'pledgie_addon_settings_post');
+}
+
+function pledgie_uninstall() { 
+	Hook::unregister('page_end', 'addon/pledgie/pledgie.php', 'pledgie_active');
+	Hook::unregister('addon_settings', 'addon/pledgie/pledgie.php', 'pledgie_addon_settings');
+	Hook::unregister('addon_settings_post', 'addon/pledgie/pledgie.php', 'pledgie_addon_settings_post');
+}
+
+function pledgie_addon_settings(&$a,&$s) {
+
+	if(! is_site_admin())
+		return;
+
+	/* Add our stylesheet to the page so we can make our settings look nice */
+
+	$a->page['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . $a->getBaseURL() . '/addon/pledgie/pledgie.css' . '" media="all" />' . "\r\n";
+
+	$campaign = Config::get('pledgie-campaign','text');
+	$describe = Config::get('pledgie-describe','text');
+	
+	if(! $campaign)
+		$campaign = '';
+	
+	if(! describe)
+		$describe = '';
+
+	$s .= '<div class="settings-block">';
+	$s .= '<h3>' . L10n::t('"pledgie" Settings') . '</h3>';
+	$s .= '<div id="pledgie-wrapper">';
+	$s .= '<label id="pledgie-label" for="pledgie-campaign">' . L10n::t('Pledgie campaign number to use for donations') . ' </label>';
+	$s .= '<input id="pledgie-campaign" type="text" name="pledgie-campaign" value="' . $campaign . '">';
+	$s .= '</div><div class="clear"></div>';
+	
+	$s .= '<div id="pledgie-wrapper">';
+	$s .= '<label id="pledgie-label" for="pledgie-describe">' . L10n::t('Description of the Pledgie campaign') . ' </label>';
+	$s .= '<input id="pledgie-describe" type="text" name="pledgie-describe" value="' . $describe . '">';
+	$s .= '</div><div class="clear"></div>';
+
+	$s .= '<div class="settings-submit-wrapper" ><input type="submit" id="pledgie-submit" name="pledgie-submit" class="settings-submit" value="' . L10n::t('Save Settings') . '" /></div></div>';
+
+	return;
+}
+
+function pledgie_addon_settings_post(&$a,&$b) {
+
+	if(! is_site_admin())
+		return;
+
+	if($_POST['pledgie-submit']) {
+		Config::set('pledgie-describe','text',trim(strip_tags($_POST['pledgie-describe'])));
+		Config::set('pledgie-campaign','text',trim(strip_tags($_POST['pledgie-campaign'])));
+		info(L10n::t('pledgie Settings saved.') . EOL);
+	}
+}
+
+function pledgie_active(&$a,&$b) {
+	$campaign = Config::get('pledgie-campaign','text');
+	$describe = Config::get('pledgie-describe','text');
+	$b .= '<div style="position: fixed; padding:5px; border-style:dotted; border-width:1px; background-color: white; line-height: 1; bottom: 5px; left: 20px; z-index: 1000; width: 150px; font-size: 12px;">';
+	$b .= $describe . '<br/><a href="https://pledgie.com/campaigns/';
+	$b .= $campaign;
+	$b .= '"><img alt="Click here to lend your support to: ' . $describe .  '!" src="https://pledgie.com/campaigns/';
+	$b .= $campaign;
+	$b .= '.png?skin_name=chrome" border="0" target="_blank" /></a></div>';
+}