Pepperminty-Wiki/modules/feature-user-preferences.php

<?php
register_module([
	"name" => "User Preferences",
	"version" => "0.2",
	"author" => "Starbeamrainbowlabs",
	"description" => "Adds a user preferences page, letting pople do things like change their email address and password.",
	"id" => "feature-user-preferences",
	"code" => function() {
		global $env, $settings;
		/**
		 * @api {get} ?action=user-preferences Get a user preferences configuration page.
		 * @apiName UserPreferences
		 * @apiGroup Settings
		 * @apiPermission User
		 */
		
		 /*
 		 * ██    ██ ███████ ███████ ██████
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 		 * 
 		 * ██████  ██████  ███████ ███████ ███████
 		 * ██   ██ ██   ██ ██      ██      ██
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 		 * ██      ██   ██ ██      ██           ██
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 		 */
		add_action("user-preferences", function() {
			global $env, $settings;
			
			if(!$env->is_logged_in)
			{
				exit(page_renderer::render_main("Error  - $settings->sitename", "<p>Since you aren't logged in, you can't change your preferences. This is because stored preferences are tied to each registered user account. You can login <a href='?action=login&returnto=" . rawurlencode("?action=user-preferences") . "'>here</a>.</p>"));
			}
			
			$statusMessages = [
				"change-password" => "Password changed successfully!"
			];
			
			if(!isset($env->user_data->emailAddress)) {
				$env->user_data->emailAddress = "";
				save_userdata();
			}
			
			$content = "<h2>User Preferences</h2>\n";
			if(isset($_GET["success"]) && $_GET["success"] === "yes")
			{
				$content .= "<p class='user-prefs-status-message'><em>" . $statusMessages[$_GET["operation"]] . "</em></p>\n";
			}
			$content .= "<label for='username'>Username:</label>\n";
			$content .= "<input type='text' name='username' value='$env->user' readonly />\n";
			$content .= "<form method='post' action='?action=save-preferences'>\n";
			$content .= "	<label for='email-address'>Email Address:</label>\n";
			$content .= "	<input type='email' id='email-address' name='email-address' placeholder='e.g. bob@bobsrockets.com' value='{$env->user_data->emailAddress}' />\n";
			$content .= "	<p><small>Used to send you notifications etc. Never shared with anyone except $settings->admindetails_name, $settings->sitename's administrator.</small></p>\n";
			$content .= "	<input type='submit' value='Save Preferences' />\n";
			$content .= "</form>\n";
			$content .= "<h3>Change Password</h3\n>";
			$content .= "<form method='post' action='?action=change-password'>\n";
			$content .= "	<label for='old-pass'>Current Password:</label>\n";
			$content .= "	<input type='password' name='current-pass'  />\n";
			$content .= "	<br />\n";
			$content .= "	<label for='new-pass'>New Password:</label>\n";
			$content .= "	<input type='password' name='new-pass' />\n";
			$content .= "	<br />\n";
			$content .= "	<label for='new-pass-confirm'>Confirm New Password:</label>\n";
			$content .= "	<input type='password' name='new-pass-confirm' />\n";
			$content .= "	<br />\n";
			$content .= "	<input type='submit' value='Change Password' />\n";
			$content .= "</form>\n";
			
			exit(page_renderer::render_main("User Preferences - $settings->sitename", $content));
		});
		
		add_action("save-preferences", function() {
			global $env, $settings;
			
			if(!$env->is_logged_in)
			{
				http_response_code(400);
				exit(page_renderer::render_main("Error Saving Preferences - $settings->sitename", "<p>You aren't logged in, so you can't save your preferences. Try <a href='?action=login&returnto=" . rawurlencode("?action=user-preferences") . "'>logging in</a> first.</p>"));
			}
			
			if(isset($_POST["email-address"]))
			{
				if(mb_strlen($_POST["email-address"]) > 320)
				{
					http_response_code(413);
					exit(page_renderer::render_main("Error Saving Email Address - $settings->sitename", "<p>The email address you supplied (<code>{$_POST['email-address']}</code>) is too long. Email addresses can only be 320 characters long. <a href='javascript:window.history.back();'>Go back</a>."));
				}
				
				if(mb_strpos($_POST["email-address"], "@") === false)
				{
					http_response_code(422);
					exit(page_renderer::render_main("Error Saving Email Address - $settings->sitename", "<p>The email address you supplied (<code>{$_POST['email-address']}</code>) doesn't appear to be valid. <a href='javascript:window.history.back();'>Go back</a>."));
				}
				
				$env->user_data->emailAddress = $_POST["email-address"];
			}
			
			// Save the user's preferences
			if(!save_userdata())
			{
				http_response_code(503);
				exit(page_renderer::render_main("Error Saving Preferences - $settings->sitename", "<p>$settings->sitename had some trouble saving your preferences! Please contact $settings->admindetails_name, $settings->sitename's administrator and tell them about this error if it still occurs in 5 minutes. They can be contacted by email at this address: <a href='mailto:" . hide_email($settings->admindetails_email) . "'>" . hide_email($settings->admindetails_email) . "</a>.</p>"));
			}
			
			exit(page_renderer::render_main("Preferences Saved Successfully - $settings->sitename", "<p>Your preferences have been saved successfully! You could go back your <a href='?action=user-preferences'>preferences page</a>, or on to the <a href='?page=" . rawurlencode($settings->defaultpage) . "'>$settings->defaultpage</a>.</p>"));
		});
		
		/**
		 * @api	{post}	?action=change-password	Change your password
		 * @apiName			ChangePassword
		 * @apiGroup		Settings
		 * @apiPermission	User
		 *
		 * @apiParam	{string}	current-pass		Your current password.
		 * @apiParam	{string}	new-pass			Your new password.
		 * @apiParam	{string}	new-pass-confirm	Your new password again, to make sure you've typed it correctly.
		 *
		 * @apiError	PasswordMismatchError	The new password fields don't match.
		 */
		add_action("change-password", function() {
		    global $env, $settings;
			
			// Make sure the new password was typed correctly
			// This comes before the current password check since that's more intensive
			if($_POST["new-pass"] !== $_POST["new-pass-confirm"]) {
				exit(page_renderer::render_main("Password mismatch - $settings->sitename", "<p>The new password you typed twice didn't match! <a href='javascript:history.back();'>Go back</a>.</p>"));
			}
			// Check the current password
			if(hash_password($_POST["current-pass"]) !== $env->user_data->password) {
				exit(page_renderer::render_main("Password mismatch - $settings->sitename", "<p>Error: You typed your current password incorrectly! <a href='javascript:history.back();'>Go back</a>.</p>"));
			}
			
			// All's good! Go ahead and change the password.
			$env->user_data->password = hash_password($_POST["new-pass"]);
			// Save the userdata back to disk
			save_userdata();
			
			http_response_code(307);
			header("location: ?action=user-preferences&success=yes&operation=change-password");
			exit(page_renderer::render_main("Password Changed Successfully", "<p>You password was changed successfully. <a href='?action=user-preferences'>Go back to the user preferences page</a>.</p>"));
		});
		
		// Display a help section on the user preferences, but only if the user
		// is logged in and so able to access them
		if($env->is_logged_in)
		{
			add_help_section("910-user-preferences", "User Preferences", "<p>As you are logged in, $settings->sitename lets you configure a selection of personal preferences. These can be viewed and tweaked to you liking over on the <a href='?action=user-preferences'>preferences page</a>, which can be accessed at any time by clicking the cog icon (it looks something like this: <a href='?action=user-preferences'>$settings->user_preferences_button_text</a>), though the administrator of $settings->sitename ($settings->admindetails_name) may have changed its appearance.</p>");
		}
	}
]);

?>