Add admin form to view and edit users

config/apache/rewrites/users.conf

@@ -0,0 +1,6 @@
+RewriteCond	expr "tolower(%{REQUEST_METHOD}) =~ /^post$/"
+RewriteRule	^/users/([\d]+)$				/users/post.php?user-id=$1 [L]
+
+RewriteRule	^/users/([^/]+)$				/users/get.php?user-identifier=$1 [L]
+
+RewriteRule	^/users/([\d]+)/edit$				/users/edit.php?user-id=$1 [L]

config/apache/standardebooks.org.conf

@@ -216,6 +216,7 @@ Define conf_rewrite_root ${web_root}/config/apache/rewrites
 	Include ${conf_rewrite_root}/newsletters.conf
 	Include ${conf_rewrite_root}/artworks.conf
 	Include ${conf_rewrite_root}/polls.conf
+	Include ${conf_rewrite_root}/users.conf
 
 	# Specific config for /ebooks/<author>/<ebook>/downloads
 	<DirectoryMatch "^${web_root}/www/ebooks/.+">

config/apache/standardebooks.test.conf

@@ -198,6 +198,7 @@ Define conf_rewrite_root ${web_root}/config/apache/rewrites
 	Include ${conf_rewrite_root}/newsletters.conf
 	Include ${conf_rewrite_root}/artworks.conf
 	Include ${conf_rewrite_root}/polls.conf
+	Include ${conf_rewrite_root}/users.conf
 
 	# Specific config for /ebooks/<author>/<ebook>/downloads
 	<DirectoryMatch "^${web_root}/www/ebooks/.+">

config/sql/se/Benefits.sql

@@ -6,6 +6,7 @@ CREATE TABLE IF NOT EXISTS `Benefits` (
   `CanUploadArtwork` tinyint(1) unsigned NOT NULL DEFAULT 0,
   `CanReviewArtwork` tinyint(1) unsigned NOT NULL DEFAULT 0,
   `CanReviewOwnArtwork` tinyint(1) unsigned NOT NULL DEFAULT 0,
+  `CanEditUsers` tinyint(1) unsigned NOT NULL DEFAULT 0,
   PRIMARY KEY (`UserId`),
   KEY `idxBenefits` (`CanAccessFeeds`,`CanVote`,`CanBulkDownload`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

config/sql/se/Users.sql

@@ -3,8 +3,13 @@ CREATE TABLE IF NOT EXISTS `Users` (
   `Email` varchar(80) DEFAULT NULL,
   `Name` varchar(255) DEFAULT NULL,
   `Created` timestamp NOT NULL DEFAULT current_timestamp(),
+  `Updated` timestamp NOT NULL DEFAULT current_timestamp() on update current_timestamp(),
   `Uuid` char(36) NOT NULL DEFAULT (uuid()),
   `PasswordHash` varchar(255) NULL,
   PRIMARY KEY (`UserId`),
-  UNIQUE KEY `idxEmail` (`Email`)
+  UNIQUE KEY `idxEmail` (`Email`,`Uuid`,`UserId`),
+  UNIQUE KEY `idxUniqueEmail` (`Email`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+ALTER TABLE `se`.`Users`
+ADD INDEX `idxUniqueEmail` (`Email` ASC) VISIBLE;
+;

lib/Benefits.php

@@ -1,9 +1,84 @@
 <?
+/**
+ * @property bool $HasBenefits Are any of the benefits in this object **`TRUE`**?
+ * @property bool $RequiresPassword Do any of the benefits in this object require the `User` to have a password set?
+ */
 class Benefits{
+	use Traits\Accessor;
+	use Traits\PropertyFromHttp;
+
+	public int $UserId;
 	public bool $CanAccessFeeds = false;
 	public bool $CanVote = false;
 	public bool $CanBulkDownload = false;
 	public bool $CanUploadArtwork = false;
 	public bool $CanReviewArtwork = false;
 	public bool $CanReviewOwnArtwork = false;
+	public bool $CanEditUsers = false;
+
+	protected bool $_HasBenefits;
+
+	protected function GetRequiresPassword(): bool{
+		if(
+			$this->CanUploadArtwork
+			||
+			$this->CanReviewArtwork
+			||
+			$this->CanReviewOwnArtwork
+			||
+			$this->CanEditUsers
+		){
+			return true;
+		}
+
+		return false;
+	}
+
+	protected function GetHasBenefits(): bool{
+		if(!isset($this->_HasBenefits)){
+			$this->_HasBenefits = false;
+
+			/** @phpstan-ignore-next-line */
+			foreach($this as $property => $value){
+				$rp = new ReflectionProperty(self::class, $property);
+				$type = $rp->getType();
+
+				if($type !== null && ($type instanceof \ReflectionNamedType)){
+					$typeName = $type->getName();
+					if($typeName == 'bool' && $value == true){
+						$this->_HasBenefits = true;
+						break;
+					}
+				}
+			}
+		}
+
+		return $this->_HasBenefits;
+	}
+
+	public function Create(): void{
+		Db::Query('
+				INSERT into Benefits (UserId, CanAccessFeeds, CanVote, CanBulkDownload, CanUploadArtwork, CanReviewArtwork, CanReviewOwnArtwork, CanEditUsers)
+				values (?, ?, ?, ?, ?, ?, ?, ?)
+		', [$this->UserId, $this->CanAccessFeeds, $this->CanVote, $this->CanBulkDownload, $this->CanUploadArtwork, $this->CanReviewArtwork, $this->CanReviewOwnArtwork, $this->CanEditUsers]);
+	}
+
+	public function Save(): void{
+		Db::Query('
+				UPDATE Benefits
+				set CanAccessFeeds = ?, CanVote = ?, CanBulkDownload = ?, CanUploadArtwork = ?, CanReviewArtwork = ?, CanReviewOwnArtwork = ?, CanEditUsers = ?
+				where
+				UserId = ?
+		', [$this->CanAccessFeeds, $this->CanVote, $this->CanBulkDownload, $this->CanUploadArtwork, $this->CanReviewArtwork, $this->CanReviewOwnArtwork, $this->CanEditUsers, $this->UserId]);
+	}
+
+	public function FillFromHttpPost(): void{
+		$this->PropertyFromHttp('CanAccessFeeds');
+		$this->PropertyFromHttp('CanVote');
+		$this->PropertyFromHttp('CanBulkDownload');
+		$this->PropertyFromHttp('CanUploadArtwork');
+		$this->PropertyFromHttp('CanReviewArtwork');
+		$this->PropertyFromHttp('CanReviewOwnArtwork');
+		$this->PropertyFromHttp('CanEditUsers');
+	}
 }

lib/Enums/PasswordActionType.php

@@ -0,0 +1,8 @@
+<?
+namespace Enums;
+
+enum PasswordActionType: string{
+	case Edit = 'edit';
+	case None = 'none';
+	case Delete = 'delete';
+}

lib/Exceptions/BenefitsRequirePasswordException.php

@@ -0,0 +1,7 @@
+<?
+namespace Exceptions;
+
+class BenefitsRequirePasswordException extends AppException{
+	/** @var string $message */
+	protected $message = 'One or more of the selected benefits require that the user have a password set.';
+}

lib/Exceptions/EmailRequiredException.php

@@ -0,0 +1,7 @@
+<?
+namespace Exceptions;
+
+class EmailRequiredException extends AppException{
+	/** @var string $message */
+	protected $message = 'An email is required.';
+}

lib/Exceptions/InvalidUserException.php

@@ -0,0 +1,7 @@
+<?
+namespace Exceptions;
+
+class InvalidUserException extends ValidationException{
+	/** @var string $message */
+	protected $message = 'User is invalid.';
+}

lib/Exceptions/InvalidUuidException.php

@@ -0,0 +1,7 @@
+<?
+namespace Exceptions;
+
+class InvalidUuidException extends AppException{
+	/** @var string $message */
+	protected $message = 'Invalid UUID.';
+}

lib/Exceptions/SeeOtherException.php

@@ -0,0 +1,12 @@
+<?
+namespace Exceptions;
+
+class SeeOtherException extends AppException{
+	public string $Url;
+
+	public function __construct(string $url){
+		$this->Url = $url;
+
+		parent::__construct();
+	}
+}

lib/Exceptions/UuidRequiredException.php

@@ -0,0 +1,7 @@
+<?
+namespace Exceptions;
+
+class UuidRequiredException extends AppException{
+	/** @var string $message */
+	protected $message = 'A UUID is required.';
+}

lib/NewsletterSubscription.php

@@ -42,18 +42,18 @@ class NewsletterSubscription{
 	public function Create(?string $expectedCaptcha = null, ?string $receivedCaptcha = null): void{
 		$this->Validate($expectedCaptcha, $receivedCaptcha);
 
-		// Do we need to create a user?
+		// Do we need to create a `User`?
 		try{
 			$this->User = User::GetByEmail($this->User->Email);
 		}
 		catch(Exceptions\UserNotFoundException){
-			// User doesn't exist, create the user
+			// User doesn't exist, create the `User`.
 
 			try{
 				$this->User->Create();
 			}
-			catch(Exceptions\UserExistsException){
+			catch(Exceptions\UserExistsException | Exceptions\InvalidUserException){
-				// User exists, pass
+				// `User` exists, pass.
 			}
 		}
 
@@ -75,7 +75,7 @@ class NewsletterSubscription{
 			throw new Exceptions\NewsletterSubscriptionExistsException();
 		}
 
-		// Send the double opt-in confirmation email
+		// Send the double opt-in confirmation email.
 		$this->SendConfirmationEmail();
 	}
 
@@ -162,13 +162,27 @@ class NewsletterSubscription{
 			throw new Exceptions\NewsletterSubscriptionNotFoundException();
 		}
 
-		$result = Db::Query('
+		return Db::Query('
 				SELECT ns.*
 				from NewsletterSubscriptions ns
 				inner join Users u using(UserId)
 				where u.Uuid = ?
-			', [$uuid], NewsletterSubscription::class);
+			', [$uuid], NewsletterSubscription::class)[0] ?? throw new Exceptions\NewsletterSubscriptionNotFoundException();
+	}
 
-		return $result[0] ?? throw new Exceptions\NewsletterSubscriptionNotFoundException();
+	/**
+	 * @throws Exceptions\NewsletterSubscriptionNotFoundException
+	 */
+	public static function GetByUserId(?int $userId): NewsletterSubscription{
+		if($userId === null){
+			throw new Exceptions\NewsletterSubscriptionNotFoundException();
+		}
+
+		return Db::Query('
+				SELECT ns.*
+				from NewsletterSubscriptions ns
+				inner join Users u using(UserId)
+				where u.UserId = ?
+			', [$userId], NewsletterSubscription::class)[0] ?? throw new Exceptions\NewsletterSubscriptionNotFoundException();
 	}
 }

lib/Payment.php

@@ -45,18 +45,18 @@ class Payment{
 	 */
 	public function Create(): void{
 		if($this->UserId === null){
-			// Check if we have to create a new user in the database
+			// Check if we have to create a new `User` in the database.
 
-			// If the User object isn't null, then check if we already have this user in our system
+			// If the `User` isn't **null**, then check if we already have this user in our system.
 			if($this->User !== null && $this->User->Email !== null){
 				try{
 					$user = User::GetByEmail($this->User->Email);
 
-					// User exists, use their data
+					// `User` exists, use their data
 					$user->Name = $this->User->Name;
 					$this->User = $user;
 
-					// Update their name in case we have their email (but not name) recorded from a newsletter subscription
+					// Update their name in case we have their email (but not name) recorded from a newsletter subscription.
 					Db::Query('
 						UPDATE Users
 						set Name = ?
@@ -64,13 +64,13 @@ class Payment{
 					', [$this->User->Name, $this->User->UserId]);
 				}
 				catch(Exceptions\UserNotFoundException){
-					// User doesn't exist, create it now
+					// User doesn't exist, create it now.
 
 					try{
 						$this->User->Create();
 					}
-					catch(Exceptions\UserExistsException){
+					catch(Exceptions\UserExistsException | Exceptions\InvalidUserException){
-						// User already exists, pass
+						// `User` already exists, pass.
 					}
 				}
 

lib/User.php

@@ -2,18 +2,26 @@
 use Ramsey\Uuid\Uuid;
 use Safe\DateTimeImmutable;
 
+use function Safe\preg_match;
+
 /**
  * @property array<Payment> $Payments
- * @property bool $IsRegistered
+ * @property bool $IsRegistered A user is "registered" if they have an entry in the `Benefits` table; a password is required to log in.
  * @property Benefits $Benefits
+ * @property string $Url
+ * @property bool $IsPatron
+ * @property ?Patron $Patron
+ * @property ?NewsletterSubscription $NewsletterSubscription
  */
 class User{
 	use Traits\Accessor;
+	use Traits\PropertyFromHttp;
 
 	public int $UserId;
 	public ?string $Name = null;
 	public ?string $Email = null;
 	public DateTimeImmutable $Created;
+	public DateTimeImmutable $Updated;
 	public string $Uuid;
 	public ?string $PasswordHash = null;
 
@@ -21,12 +29,60 @@ class User{
 	/** @var array<Payment> $_Payments */
 	protected array $_Payments;
 	protected Benefits $_Benefits;
+	protected string $_Url;
+	protected bool $_IsPatron;
+	protected ?Patron $_Patron;
+	protected ?NewsletterSubscription $_NewsletterSubscription;
 
 
 	// *******
 	// GETTERS
 	// *******
 
+	protected function GetIsPatron(): bool{
+		if(!isset($this->_IsPatron)){
+			$this->GetPatron();
+		}
+
+		return $this->_IsPatron;
+	}
+
+	protected function GetNewsletterSubscription(): ?NewsletterSubscription{
+		if(!isset($this->_NewsletterSubscription)){
+			try{
+				$this->_NewsletterSubscription = NewsletterSubscription::GetByUserId($this->UserId);
+			}
+			catch(Exceptions\NewsletterSubscriptionNotFoundException){
+				$this->_NewsletterSubscription = null;
+			}
+		}
+
+		return $this->_NewsletterSubscription;
+	}
+
+	protected function GetPatron(): ?Patron{
+		if(!isset($this->_Patron)){
+			try{
+				$this->_Patron = Patron::Get($this->UserId);
+				$this->IsPatron = true;
+			}
+			catch(Exceptions\PatronNotFoundException){
+				$this->_Patron = null;
+				$this->IsPatron = false;
+			}
+		}
+
+		return $this->_Patron;
+	}
+
+	protected function GetUrl(): string{
+		if(!isset($this->_Url)){
+			$this->_Url = '/users/' . $this->UserId;
+		}
+
+		return $this->_Url;
+	}
+
 	/**
 	* @return array<Payment>
 	*/
@@ -66,7 +122,7 @@ class User{
 
 	protected function GetIsRegistered(): ?bool{
 		if(!isset($this->_IsRegistered)){
-			// A user is "registered" if they have a benefits entry in the table.
+			// A user is "registered" if they have an entry in the `Benefits` table.
 			// This function will fill it out for us.
 			$this->GetBenefits();
 		}
@@ -80,11 +136,61 @@ class User{
 	// *******
 
 	/**
+	 * @throws Exceptions\InvalidUserException
+	 */
+	public function Validate(): void{
+		$error = new Exceptions\InvalidUserException();
+
+		if(!isset($this->Email)){
+			$error->Add(new Exceptions\EmailRequiredException());
+		}
+		else{
+			if(filter_var($this->Email, FILTER_VALIDATE_EMAIL) === false){
+				$error->Add(new Exceptions\InvalidEmailException('Email is invalid.'));
+			}
+		}
+
+		if(!isset($this->Uuid)){
+			$error->Add(new Exceptions\UuidRequiredException());
+		}
+		else{
+			if(!preg_match('/^[0-9a-f]{8}\-[0-9a-f]{4}\-[0-9a-f]{4}\-[0-9a-f]{4}\-[0-9a-f]{12}$/', $this->Uuid)){
+				$error->Add(new Exceptions\InvalidUuidException());
+			}
+		}
+
+		if(trim($this->Name ?? '') == ''){
+			$this->Name = null;
+		}
+
+		if(trim($this->PasswordHash ?? '') == ''){
+			$this->PasswordHash = null;
+		}
+
+		// Some benefits require this `User` to have a password set.
+		if($this->Benefits->RequiresPassword && $this->PasswordHash === null){
+			$error->Add(new Exceptions\BenefitsRequirePasswordException());
+		}
+
+		if($error->HasExceptions){
+			throw $error;
+		}
+	}
+
+	public function GenerateUuid(): void{
+		$uuid = Uuid::uuid4();
+		$this->Uuid = $uuid->toString();
+	}
+
+
+	/**
+	 * @throws Exceptions\InvalidUserException
 	 * @throws Exceptions\UserExistsException
 	 */
 	public function Create(?string $password = null): void{
-		$uuid = Uuid::uuid4();
+		$this->GenerateUuid();
-		$this->Uuid = $uuid->toString();
+
+		$this->Validate();
 
 		$this->Created = NOW;
 
@@ -110,6 +216,37 @@ class User{
 		$this->UserId = Db::GetLastInsertedId();
 	}
 
+	/**
+	 * @throws Exceptions\InvalidUserException
+	 * @throws Exceptions\UserExistsException
+	 */
+	public function Save(): void{
+		$this->Validate();
+
+		$this->Updated = NOW;
+
+		try{
+			Db::Query('
+					UPDATE Users
+					set Email = ?, Name = ?, Uuid = ?, Updated = ?, PasswordHash = ?
+					where
+					UserId = ?
+				', [$this->Email, $this->Name, $this->Uuid, $this->Updated, $this->PasswordHash, $this->UserId]);
+
+			if($this->IsRegistered){
+				$this->Benefits->Save();
+			}
+			elseif($this->Benefits->HasBenefits){
+				$this->Benefits->UserId = $this->UserId;
+				$this->Benefits->Create();
+				$this->IsRegistered = true;
+			}
+		}
+		catch(Exceptions\DuplicateDatabaseKeyException){
+			throw new Exceptions\UserExistsException();
+		}
+	}
+
 
 	// ***********
 	// ORM METHODS
@@ -130,6 +267,30 @@ class User{
 				', [$userId], User::class)[0] ?? throw new Exceptions\UserNotFoundException();
 	}
 
+	/**
+	 * Get a `User` based on either a `UserId`, `Email`, or `Uuid`.
+	 *
+	 * @throws Exceptions\UserNotFoundException
+	 */
+	public static function GetByIdentifier(?string $identifier): User{
+		if($identifier === null){
+			throw new Exceptions\UserNotFoundException();
+		}
+
+		if(ctype_digit($identifier)){
+			return User::Get(intval($identifier));
+		}
+		elseif(mb_stripos($identifier, '@') !== false){
+			return User::GetByEmail($identifier);
+		}
+		elseif(mb_stripos($identifier, '-') !== false){
+			return User::GetByUuid($identifier);
+		}
+		else{
+			throw new Exceptions\UserNotFoundException();
+		}
+	}
+
 	/**
 	 * @throws Exceptions\UserNotFoundException
 	 */
@@ -145,6 +306,21 @@ class User{
 				', [$email], User::class)[0] ?? throw new Exceptions\UserNotFoundException();
 	}
 
+	/**
+	 * @throws Exceptions\UserNotFoundException
+	 */
+	public static function GetByUuid(?string $uuid): User{
+		if($uuid === null){
+			throw new Exceptions\UserNotFoundException();
+		}
+
+		return Db::Query('
+					SELECT *
+					from Users
+					where Uuid = ?
+				', [$uuid], User::class)[0] ?? throw new Exceptions\UserNotFoundException();
+	}
+
 	/**
 	 * Get a `User` if they are considered "registered".
 	 *
@@ -169,7 +345,7 @@ class User{
 				', [$identifier, $identifier], User::class)[0] ?? throw new Exceptions\UserNotFoundException();
 
 		if($user->PasswordHash !== null && $password === null){
-			// Indicate that a password is required before we log in
+			// Indicate that a password is required before we log in.
 			throw new Exceptions\PasswordRequiredException();
 		}
 
@@ -179,4 +355,12 @@ class User{
 
 		return $user;
 	}
+
+	public function FillFromHttpPost(): void{
+		$this->PropertyFromHttp('Name');
+		$this->PropertyFromHttp('Email');
+		$this->PropertyFromHttp('Uuid');
+
+		$this->Benefits->FillFromHttpPost();
+	}
 }

templates/ArtworkForm.php

@@ -196,5 +196,11 @@ $isEditForm = $isEditForm ?? false;
 	</fieldset>
 <? } ?>
 <div class="footer">
-	<button><? if($isEditForm){ ?>Save changes<? }else{ ?>Submit<? } ?></button>
+	<button>
+		<? if($isEditForm){ ?>
+			Save changes
+		<? }else{ ?>
+			Submit
+		<? } ?>
+	</button>
 </div>

templates/DonationCounter.php

@@ -41,7 +41,7 @@ $digits = str_split(str_pad((string)$current, 3, "0", STR_PAD_LEFT))
 ?>
 <aside class="donation counter closable">
 	<? if($autoHide){ ?>
-		<form action="/settings" method="post">
+		<form action="/settings" method="<?= Enums\HttpMethod::Post->value ?>">
 			<input type="hidden" name="hide-donation-alert" value="true" />
 			<button class="close" title="Close this box">Close this box</button>
 		</form>

templates/DonationProgress.php

@@ -43,7 +43,7 @@ else{
 ?>
 <aside class="donation closable">
 	<? if($autoHide){ ?>
-		<form action="/settings" method="post">
+		<form action="/settings" method="<?= Enums\HttpMethod::Post->value ?>">
 			<input type="hidden" name="hide-donation-alert" value="true" />
 			<button class="close" title="Close this box">Close this box</button>
 		</form>

templates/Header.php

@@ -5,7 +5,6 @@ $title = $title ?? '';
 $highlight = $highlight ?? '';
 $description = $description ?? '';
 $manual = $manual ?? false;
-$artwork = $artwork ?? false;
 $colorScheme = $_COOKIE['color-scheme'] ?? 'auto';
 $isXslt = $isXslt ?? false;
 $feedUrl = $feedUrl ?? null;
@@ -13,11 +12,11 @@ $feedTitle = $feedTitle ?? '';
 $isErrorPage = $isErrorPage ?? false;
 $downloadUrl = $downloadUrl ?? null;
 $canonicalUrl = $canonicalUrl ?? null;
+$css = $css ?? [];
 
-// As of Sep 2022, all versions of Safari have a bug where if the page is served as XHTML,
+// As of Sep. 2022, all versions of Safari have a bug where if the page is served as XHTML, then `<picture>` elements download all `<source>`s instead of the first supported match.
-// then <picture> elements download all <source>s instead of the first supported match.
+// So, we try to detect Safari here, and don't use multiple `<source>` if we find Safari.
-// So, we try to detect Safari here, and don't use multiple <source> if we find Safari.
+// See <https://bugs.webkit.org/show_bug.cgi?id=245411>.
-// See https://bugs.webkit.org/show_bug.cgi?id=245411
 $isSafari = stripos($_SERVER['HTTP_USER_AGENT'] ?? '', 'safari') !== false;
 
 if(!$isXslt){
@@ -56,8 +55,8 @@ if(!$isXslt){
 			<link href="/css/manual-dark.css?version=<?= filemtime(WEB_ROOT . '/css/manual-dark.css') ?>" media="screen<? if($colorScheme == 'auto'){ ?> and (prefers-color-scheme: dark)<? } ?>" rel="stylesheet" type="text/css"/>
 		<? } ?>
 	<? } ?>
-	<? if($artwork){ ?>
+	<? foreach($css as $url){ ?>
-		<link href="/css/artwork.css?version=<?= filemtime(WEB_ROOT . '/css/artwork.css') ?>" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="<?= Formatter::EscapeHtml($url) ?>?version=<?= filemtime(WEB_ROOT . $url) ?>" media="screen" rel="stylesheet" type="text/css"/>
 	<? } ?>
 	<? if($canonicalUrl){ ?>
 		<link rel="canonical" href="<?= Formatter::EscapeHtml($canonicalUrl) ?>" />

templates/UserForm.php

@@ -0,0 +1,149 @@
+<?
+$user = $user ?? new User();
+$isEditForm = $isEditForm ?? false;
+$generateNewUuid = $generateNewUuid ?? false;
+$passwordAction = $passwordAction ?? Enums\PasswordActionType::None;
+?>
+
+<label class="email">
+	Email
+	<input
+		type="email"
+		name="user-email"
+		required="required"
+		value="<?= Formatter::EscapeHtml($user->Email) ?>"
+	/>
+</label>
+
+<label class="user">
+	Name
+	<input
+		type="text"
+		name="user-name"
+		value="<?= Formatter::EscapeHtml($user->Name) ?>"
+	/>
+</label>
+<fieldset>
+	<label>
+		UUID
+		<input
+			type="text"
+			name="user-uuid"
+			value="<?= Formatter::EscapeHtml($user->Uuid) ?>"
+		/>
+	</label>
+	<label>
+		<input type="hidden" name="generate-new-uuid" value="false" />
+		<input type="checkbox" name="generate-new-uuid" value="true"<? if($generateNewUuid){ ?> checked="checked"<? } ?> />
+		Generate a new UUID
+	</label>
+</fieldset>
+<fieldset>
+	<ul>
+		<li>
+			<label>
+				<input type="radio" name="password-action" value="<?= Enums\PasswordActionType::None->value ?>"<? if($passwordAction == Enums\PasswordActionType::None){ ?> checked="checked"<? } ?> />Don’t change password
+			</label>
+		</li>
+		<? if($user->PasswordHash === null){ ?>
+			<li>
+				<fieldset>
+					<label>
+						<input type="radio" name="password-action" value="<?= Enums\PasswordActionType::Edit->value ?>"<? if($passwordAction == Enums\PasswordActionType::Edit){ ?> checked="checked"<? } ?> />Create a new password
+					</label>
+					<label>
+						Password
+						<input
+							type="password"
+							name="user-password"
+						/>
+					</label>
+				</fieldset>
+			</li>
+		<? }else{ ?>
+			<li>
+				<label>
+					<input type="radio" name="password-action" value="<?= Enums\PasswordActionType::Delete->value ?>"<? if($passwordAction == Enums\PasswordActionType::Delete){ ?> checked="checked"<? } ?> />Remove password
+				</label>
+			</li>
+			<li>
+				<fieldset>
+					<label>
+						<input type="radio" name="password-action" value="<?= Enums\PasswordActionType::Edit->value ?>"<? if($passwordAction == Enums\PasswordActionType::Edit){ ?> checked="checked"<? } ?> />Change password
+					</label>
+					<label>
+						Password
+						<input
+							type="password"
+							name="user-password"
+						/>
+					</label>
+				</fieldset>
+			</li>
+		<? } ?>
+	</ul>
+</fieldset>
+<fieldset>
+	<legend>Benefits</legend>
+	<ul>
+		<li>
+			<label>
+				<input type="hidden" name="benefits-can-access-feeds" value="false" />
+				<input type="checkbox" name="benefits-can-access-feeds" value="true"<? if($user->Benefits->CanAccessFeeds){ ?> checked="checked"<? } ?> />
+				Can access feeds
+			</label>
+		</li>
+		<li>
+			<label>
+				<input type="hidden" name="benefits-can-vote" value="false" />
+				<input type="checkbox" name="benefits-can-vote" value="true"<? if($user->Benefits->CanVote){ ?> checked="checked"<? } ?> />
+				Can vote in polls
+			</label>
+		</li>
+		<li>
+			<label>
+				<input type="hidden" name="benefits-can-bulk-download" value="false" />
+				<input type="checkbox" name="benefits-can-bulk-download" value="true"<? if($user->Benefits->CanBulkDownload){ ?> checked="checked"<? } ?> />
+				Can access bulk downloads
+			</label>
+		</li>
+		<li>
+			<label>
+				<input type="hidden" name="benefits-can-upload-artwork" value="false" />
+				<input type="checkbox" name="benefits-can-upload-artwork" value="true"<? if($user->Benefits->CanUploadArtwork){ ?> checked="checked"<? } ?> />
+				Can upload artwork
+			</label>
+		</li>
+		<li>
+			<label>
+				<input type="hidden" name="benefits-can-review-artwork" value="false" />
+				<input type="checkbox" name="benefits-can-review-artwork" value="true"<? if($user->Benefits->CanReviewArtwork){ ?> checked="checked"<? } ?> />
+				Can review artwork
+			</label>
+		</li>
+		<li>
+			<label>
+				<input type="hidden" name="benefits-can-review-own-artwork" value="false" />
+				<input type="checkbox" name="benefits-can-review-own-artwork" value="true"<? if($user->Benefits->CanReviewOwnArtwork){ ?> checked="checked"<? } ?> />
+				Can review own artwork
+			</label>
+		</li>
+		<li>
+			<label>
+				<input type="hidden" name="benefits-can-edit-users" value="false" />
+				<input type="checkbox" name="benefits-can-edit-users" value="true"<? if($user->Benefits->CanEditUsers){ ?> checked="checked"<? } ?> />
+				Can edit users
+			</label>
+		</li>
+	</ul>
+</fieldset>
+
+<div class="footer">
+	<button>
+		<? if($isEditForm){ ?>
+			Save changes
+		<? }else{ ?>
+			Submit
+		<? } ?>
+	</button>
+</div>

www/artists/get.php

@@ -23,7 +23,7 @@ try{
 catch(Exceptions\ArtistNotFoundException){
 	Template::Emit404();
 }
-?><?= Template::Header(['title' => 'Artwork by ' . $artworks[0]->Artist->Name, 'artwork' => true]) ?>
+?><?= Template::Header(['title' => 'Artwork by ' . $artworks[0]->Artist->Name, 'css' => ['/css/artwork.css']]) ?>
 <main class="artworks">
 	<section class="narrow">
 		<h1>Artwork by <?= Formatter::EscapeHtml($artworks[0]->Artist->Name) ?></h1>

www/artworks/edit.php

@@ -3,10 +3,8 @@ use function Safe\session_unset;
 
 session_start();
 
-/** @var ?\Exception $exception */
+$exception = HttpInput::SessionObject('exception', Exceptions\AppException::class);
-$exception = $_SESSION['exception'] ?? null;
+$artwork = HttpInput::SessionObject('artwork', Artwork::class);
-/** @var ?Artwork $artwork */
-$artwork = $_SESSION['artwork'] ?? null;
 
 try{
 	if(Session::$User === null){
@@ -41,7 +39,7 @@ catch(Exceptions\InvalidPermissionsException){
 <?= Template::Header(
 	[
 		'title' => 'Edit ' . $artwork->Name . ', by ' . $artwork->Artist->Name,
-		'artwork' => true,
+		'css' => ['/css/artwork.css'],
 		'highlight' => '',
 		'description' => 'Edit ' . $artwork->Name . ', by ' . $artwork->Artist->Name . ' in the Standard Ebooks cover art database.'
 	]
@@ -57,8 +55,8 @@ catch(Exceptions\InvalidPermissionsException){
 			<img src="<?= $artwork->ThumbUrl ?>" alt="" property="schema:image"/>
 		</picture>
 
-		<form class="create-update-artwork" method="post" action="<?= $artwork->Url ?>" enctype="multipart/form-data" autocomplete="off">
+		<form class="create-update-artwork" method="<?= Enums\HttpMethod::Post->value ?>" action="<?= $artwork->Url ?>" enctype="multipart/form-data" autocomplete="off">
-			<input type="hidden" name="_method" value="PUT" />
+			<input type="hidden" name="_method" value="<?= Enums\HttpMethod::Put->value ?>" />
 			<?= Template::ArtworkForm(['artwork' => $artwork, 'isEditForm' => true]) ?>
 		</form>
 	</section>

www/artworks/get.php

@@ -4,8 +4,7 @@ use function Safe\session_unset;
 session_start();
 
 $isSaved = HttpInput::Bool(SESSION, 'is-artwork-saved') ?? false;
-/** @var ?\Exception $exception */
+$exception = HttpInput::SessionObject('exception', Exceptions\AppException::class);
-$exception = $_SESSION['exception'] ?? null;
 
 try{
 	try{
@@ -65,7 +64,7 @@ catch(Exceptions\InvalidPermissionsException){
 	Template::Emit403();
 }
 
-?><?= Template::Header(['title' => $artwork->Name, 'artwork' => true]) ?>
+?><?= Template::Header(['title' => $artwork->Name, 'css' => ['/css/artwork.css']]) ?>
 <main class="artworks">
 	<section class="narrow">
 		<h1><?= Formatter::EscapeHtml($artwork->Name) ?></h1>
@@ -173,8 +172,8 @@ catch(Exceptions\InvalidPermissionsException){
 			<? if($artwork->CanStatusBeChangedBy(Session::$User)){ ?>
 				<p>Review the metadata and PD proof for this artwork submission. Approve to make it available for future producers. Once an artwork is approved, it can no longer be edited.</p>
 			<? } ?>
-			<form method="post" action="<?= $artwork->Url ?>" autocomplete="off">
+			<form method="<?= Enums\HttpMethod::Post->value ?>" action="<?= $artwork->Url ?>" autocomplete="off">
-				<input type="hidden" name="_method" value="PATCH" />
+				<input type="hidden" name="_method" value="<?= Enums\HttpMethod::Patch->value ?>" />
 				<? if($artwork->CanStatusBeChangedBy(Session::$User)){ ?>
 					<label>
 						<span>Artwork approval status</span>

www/artworks/index.php

@@ -135,7 +135,7 @@ catch(Exceptions\PageOutOfBoundsException){
 	header('Location: ' . $url);
 	exit();
 }
-?><?= Template::Header(['title' => $pageTitle, 'artwork' => true, 'description' => $pageDescription, 'canonicalUrl' => $canonicalUrl]) ?>
+?><?= Template::Header(['title' => $pageTitle, 'css' => ['/css/artwork.css'], 'description' => $pageDescription, 'canonicalUrl' => $canonicalUrl]) ?>
 <main class="artworks">
 	<section class="narrow">
 		<h1>Browse U.S. Public Domain Artwork</h1>

www/artworks/new.php

@@ -4,10 +4,8 @@ use function Safe\session_unset;
 session_start();
 
 $isCreated = HttpInput::Bool(SESSION, 'is-artwork-created') ?? false;
-/** @var ?\Exception $exception */
+$exception = HttpInput::SessionObject('exception', Exceptions\AppException::class);
-$exception = $_SESSION['exception'] ?? null;
+$artwork = HttpInput::SessionObject('artwork', Artwork::class);
-/** @var ?Artwork $artwork */
-$artwork = $_SESSION['artwork'] ?? null;
 
 try{
 	if(Session::$User === null){
@@ -51,7 +49,7 @@ catch(Exceptions\InvalidPermissionsException){
 <?= Template::Header(
 	[
 		'title' => 'Submit an Artwork',
-		'artwork' => true,
+		'css' => ['/css/artwork.css'],
 		'highlight' => '',
 		'description' => 'Submit public domain artwork to the database for use as cover art.'
 	]
@@ -66,7 +64,7 @@ catch(Exceptions\InvalidPermissionsException){
 			<p class="message success">Artwork submitted!</p>
 		<? } ?>
 
-		<form class="create-update-artwork" method="post" action="/artworks" enctype="multipart/form-data" autocomplete="off">
+		<form class="create-update-artwork" method="<?= Enums\HttpMethod::Post->value ?>" action="/artworks" enctype="multipart/form-data" autocomplete="off">
 			<?= Template::ArtworkForm(['artwork' => $artwork]) ?>
 		</form>
 	</section>

www/css/core.css

@@ -835,7 +835,7 @@ input[type="number"]:focus,
 input[type="url"]:focus,
 input[type="search"]:focus,
 input[type="file"]:focus,
-label.checkbox:focus-within,
+label:has(input[type="radio"]):focus-within,
 label:has(input[type="checkbox"]):focus-within,
 select:focus,
 button:focus,
@@ -1829,20 +1829,24 @@ label span + span i{
 
 input[type="file"],
 label:has(input[type="file"]),
+label:has(input[type="radio"]),
 label:has(input[type="checkbox"]){
 	cursor: pointer;
 }
 
+label + label:has(input[type="radio"]),
 label + label:has(input[type="checkbox"]){
 	margin-top: 1px; /* So we can see the top outline on focus */
 }
 
+label:has(input[type="radio"]):has(> span),
 label:has(input[type="checkbox"]):has(> span){
 	display: grid;
 	grid-template-columns: auto 1fr;
 	grid-template-rows: auto 1fr;
 }
 
+label:has(input[type="radio"]):has(> span) input,
 label:has(input[type="checkbox"]):has(> span) input{
 	grid-row: 1 / span 2;
 	justify-self: center;
@@ -1897,6 +1901,7 @@ label.tags,
 label.picture,
 label.user,
 label:has(input[type="password"]){
+	display: block;
 	position: relative;
 	max-width: 100%;
 }
@@ -2483,10 +2488,12 @@ fieldset{
 	border: none;
 }
 
-fieldset p{
+fieldset p,
+fieldset legend{
 	border-bottom: 1px dashed var(--input-border);
 }
 
+fieldset legend,
 fieldset p:has(+ ul){
 	font-weight: bold;
 }
@@ -2495,7 +2502,8 @@ input[type="checkbox"] + span:has(+ span){
 	font-weight: bold;
 }
 
-label.checkbox{
+label:has(input[type="radio"]),
+label:has(input[type="checkbox"]){
 	display: inline-flex;
 	align-items: flex-start;
 	text-align: left;
@@ -2503,20 +2511,24 @@ label.checkbox{
 	cursor: pointer;
 }
 
-label.checkbox input{
+label:has(input[type="radio"]) input,
+label:has(input[type="checkbox"]) input{
 	margin-right: .25rem;
 }
 
-label.checkbox span{
+label:has(input[type="radio"]) span,
+label:has(input[type="checkbox"]) span{
 	display: block;
 }
 
-label.checkbox span > span{
+label:has(input[type="radio"]) span > span,
+label:has(input[type="checkbox"]) span > span{
 	line-height: 1.6;
 	margin-top: .25rem;
 }
 
-label.checkbox span{
+label:has(input[type="radio"]) span,
+label:has(input[type="checkbox"]) span{
 	font-weight: normal;
 }
 

www/css/user.css

@@ -0,0 +1,34 @@
+label:has(input[name="password-action"]:not(:checked)) + label{
+	display: none;
+}
+
+label:has(input[name="password-action"]) + label{
+	margin-left: 1.5rem;
+	margin-top: .5rem;
+}
+
+table td{
+	padding: .5rem;
+	vertical-align: top;
+}
+
+table td:first-child{
+	font-weight: bold;
+	text-align: right;
+	white-space: nowrap;
+}
+
+table td + td{
+	width: 100%;
+}
+
+form{
+	display: flex;
+	flex-direction: column;
+	gap: 2rem;
+}
+
+legend{
+	width: 100%;
+}
+

www/newsletter/subscriptions/new.php

@@ -29,7 +29,7 @@ if($exception){
 
 		<?= Template::Error(['exception' => $exception]) ?>
 
-		<form action="/newsletter/subscriptions" method="post">
+		<form action="/newsletter/subscriptions" method="<?= Enums\HttpMethod::Post->value ?>">
 			<label class="automation-test"><? /* Test for spam bots filling out all fields */ ?>
 				<input type="text" name="automationtest" value="" maxlength="80" />
 			</label>
@@ -47,10 +47,10 @@ if($exception){
 				<p>What kind of email would you like to receive?</p>
 				<ul>
 					<li>
-						<label class="checkbox"><input type="checkbox" value="1" name="issubscribedtonewsletter"<? if($subscription->IsSubscribedToNewsletter){ ?> checked="checked"<? } ?> />The occasional Standard Ebooks newsletter</label>
+						<label><input type="checkbox" value="1" name="issubscribedtonewsletter"<? if($subscription->IsSubscribedToNewsletter){ ?> checked="checked"<? } ?> />The occasional Standard Ebooks newsletter</label>
 					</li>
 					<li>
-						<label class="checkbox"><input type="checkbox" value="1" name="issubscribedtosummary"<? if($subscription->IsSubscribedToSummary){ ?> checked="checked"<? } ?> />A monthly summary of new ebook releases</label>
+						<label><input type="checkbox" value="1" name="issubscribedtosummary"<? if($subscription->IsSubscribedToSummary){ ?> checked="checked"<? } ?> />A monthly summary of new ebook releases</label>
 					</li>
 				</ul>
 			</fieldset>

www/polls/votes/new.php

@@ -4,20 +4,14 @@ use function Safe\session_unset;
 session_start();
 
 $poll = new Poll();
-$vote = new PollVote();
+$vote = HttpInput::SessionObject('vote', PollVote::class) ?? new PollVote();
-/** @var ?\Exception $exception */
+$exception = HttpInput::SessionObject('exception', Exceptions\AppException::class);
-$exception = $_SESSION['exception'] ?? null;
 
 try{
 	if(Session::$User === null){
 		throw new Exceptions\LoginRequiredException();
 	}
 
-	if(isset($_SESSION['vote'])){
-		/** @var PollVote $vote */
-		$vote = $_SESSION['vote'];
-	}
-
 	if(!isset($vote->UserId)){
 		$vote->UserId = Session::$User->UserId;
 		$vote->User = Session::$User;
@@ -60,7 +54,7 @@ catch(Exceptions\PollVoteExistsException $ex){
 	<section class="narrow">
 		<h1>Vote in the <?= Formatter::EscapeHtml($poll->Name) ?> Poll</h1>
 		<?= Template::Error(['exception' => $exception]) ?>
-		<form method="post" action="<?= Formatter::EscapeHtml($poll->Url) ?>/votes">
+		<form method="<?= Enums\HttpMethod::Post->value ?>" action="<?= Formatter::EscapeHtml($poll->Url) ?>/votes">
 			<input type="hidden" name="email" value="<?= Formatter::EscapeHtml($vote->User->Email) ?>" maxlength="80" required="required" />
 			<fieldset>
 				<p>Select one of these options.</p>

www/sessions/new.php

@@ -39,7 +39,7 @@ if($exception){
 			<p>Anyone can <a href="/donate#patrons-circle">join the Patrons Circle</a> with a small donation in support of our continuing mission to create free, beautiful digital literature.</p>
 			<p><strong>Important:</strong> When making your donation, you must have selected either “List my name publicly” or “Don’t list publicly, but reveal to project” on the donation form; otherwise, your email address isn’t shared with us, and we can’t include you in our login system.</p>
 		<? } ?>
-		<form method="post" action="/sessions" class="single-row">
+		<form method="<?= Enums\HttpMethod::Post->value ?>" action="/sessions" class="single-row">
 			<input type="hidden" name="redirect" value="<?= Formatter::EscapeHtml($redirect) ?>" />
 			<? if($passwordRequired){ ?>
 				<input type="hidden" name="email" value="<?= Formatter::EscapeHtml($email) ?>" maxlength="80" required="required" />

www/settings/index.php

@@ -4,7 +4,7 @@ $colorScheme = $_COOKIE['color-scheme'] ?? 'auto';
 ?><?= Template::Header(['title' => 'Website Settings', 'description' => 'Adjust your settings for viewing the Standard Ebooks website.']) ?>
 <main>
 	<h1>Website Settings</h1>
-	<form action="/settings" method="post">
+	<form action="/settings" method="<?= Enums\HttpMethod::Post->value ?>">
 		<label>
 			<span>Color scheme</span>
 			<span>

www/users/edit.php

@@ -0,0 +1,59 @@
+<?
+use function Safe\session_unset;
+
+session_start();
+
+$exception = HttpInput::SessionObject('exception', Exceptions\AppException::class);
+$user = HttpInput::SessionObject('user', User::class);
+$generateNewUuid = HttpInput::Bool(SESSION, 'generate-new-uuid') ?? false;
+$passwordAction = HttpInput::SessionObject('password-action', Enums\PasswordActionType::class) ?? Enums\PasswordActionType::None;
+
+try{
+	if($user === null){
+		$user = User::Get(HttpInput::Int(GET, 'user-id'));
+	}
+
+	if(Session::$User === null){
+		throw new Exceptions\LoginRequiredException();
+	}
+
+	if(!Session::$User->Benefits->CanReviewOwnArtwork){
+		throw new Exceptions\InvalidPermissionsException();
+	}
+
+	// We got here because a `User` update had errors and the user has to try again.
+	if($exception){
+		http_response_code(Enums\HttpCode::UnprocessableContent->value);
+		session_unset();
+	}
+}
+catch(Exceptions\UserNotFoundException){
+	Template::Emit404();
+}
+catch(Exceptions\LoginRequiredException){
+	Template::RedirectToLogin();
+}
+catch(Exceptions\InvalidPermissionsException){
+	Template::Emit403(); // No permissions to edit artwork.
+}
+?>
+<?= Template::Header(
+	[
+		'title' => 'Edit user #' . $user->UserId,
+		'css' => ['/css/user.css'],
+		'highlight' => ''
+	]
+) ?>
+<main>
+	<section class="narrow">
+		<h1>Edit User #<?= $user->UserId ?></h1>
+
+		<?= Template::Error(['exception' => $exception]) ?>
+
+		<form class="create-update-artwork" method="<?= Enums\HttpMethod::Post->value ?>" action="<?= $user->Url ?>" autocomplete="off">
+			<input type="hidden" name="_method" value="<?= Enums\HttpMethod::Patch->value ?>" />
+			<?= Template::UserForm(['user' => $user, 'isEditForm' => true, 'generateNewUuid' => $generateNewUuid, 'passwordAction' => $passwordAction]) ?>
+		</form>
+	</section>
+</main>
+<?= Template::Footer() ?>

www/users/get.php

@@ -0,0 +1,157 @@
+<?
+use function Safe\session_unset;
+
+session_start();
+
+$isSaved = HttpInput::Bool(SESSION, 'is-user-saved') ?? false;
+
+try{
+	$user = User::GetByIdentifier(HttpInput::Str(GET, 'user-identifier'));
+
+	// Even though the identifier can be either an email, user ID, or UUID, we want the URL of this page to be based on a user ID only.
+	if(!ctype_digit(HttpInput::Str(GET, 'user-identifier'))){
+		throw new Exceptions\SeeOtherException($user->Url);
+	}
+
+	if(Session::$User === null){
+		throw new Exceptions\LoginRequiredException();
+	}
+
+	if(!Session::$User->Benefits->CanEditUsers){
+		throw new Exceptions\InvalidPermissionsException();
+	}
+
+	// We got here because a `User` was successfully saved.
+	if($isSaved){
+		session_unset();
+	}
+}
+catch(Exceptions\UserNotFoundException){
+	Template::Emit404();
+}
+catch(Exceptions\LoginRequiredException){
+	Template::RedirectToLogin();
+}
+catch(Exceptions\InvalidPermissionsException){
+	Template::Emit403();
+}
+catch(Exceptions\SeeOtherException $ex){
+	http_response_code(Enums\HttpCode::SeeOther->value);
+	header('Location: ' . $ex->Url);
+}
+
+?><?= Template::Header(['title' => 'User #' . $user->UserId, 'css' => ['/css/user.css']]) ?>
+<main>
+	<section class="narrow">
+		<h1>User #<?= $user->UserId ?></h1>
+
+		<? if($isSaved){ ?>
+			<p class="message success">User saved!</p>
+		<? } ?>
+
+		<a href="<?= $user->Url ?>/edit">Edit user</a>
+
+		<h2>Basics</h2>
+		<table>
+			<tbody>
+				<tr>
+					<td>Email:</td>
+					<td><?= Formatter::EscapeHtml($user->Email) ?></td>
+				</tr>
+				<tr>
+					<td>Name:</td>
+					<td><?= Formatter::EscapeHtml($user->Name) ?></td>
+				</tr>
+				<tr>
+					<td>UUID:</td>
+					<td><?= Formatter::EscapeHtml($user->Uuid) ?></td>
+				</tr>
+				<tr>
+					<td>Created:</td>
+					<td><?= $user->Created->Format(Enums\DateTimeFormat::FullDateTime->value) ?></td>
+				</tr>
+			</tbody>
+		</table>
+
+		<h2>Patron info</h2>
+		<table>
+			<tbody>
+				<tr>
+					<td>Is Patron:</td>
+					<td><? if($user->IsPatron){ ?>☑<? }else{ ?>☐<? } ?></td>
+				</tr>
+				<? if($user->IsPatron && $user->Patron !== null){ ?>
+					<tr>
+						<td>Created:</td>
+						<td><?= $user->Patron->Created->format(Enums\DateTimeFormat::FullDateTime->value) ?></td>
+					</tr>
+					<tr>
+						<td>Is anonymous:</td>
+						<td><? if($user->Patron->IsAnonymous){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+					<? if($user->Patron->AlternateName !== null){ ?>
+						<tr>
+							<td>Alternate credit:</td>
+							<td><?= Formatter::EscapeHtml($user->Patron->AlternateName) ?></td>
+						</tr>
+					<? } ?>
+				<? } ?>
+			</tbody>
+		</table>
+
+		<h2>Newsletter subscriptions</h2>
+		<? if($user->NewsletterSubscription === null || (!$user->NewsletterSubscription->IsSubscribedToNewsletter && !$user->NewsletterSubscription->IsSubscribedToSummary)){ ?>
+			<p>None.</p>
+		<? }else{ ?>
+			<ul>
+				<? if($user->NewsletterSubscription->IsSubscribedToNewsletter){ ?>
+					<li>General newsletter</li>
+				<? } ?>
+				<? if($user->NewsletterSubscription->IsSubscribedToSummary){ ?>
+					<li>Monthly summary newsletter</li>
+				<? } ?>
+			</ul>
+		<? } ?>
+
+		<h2>Registration info</h2>
+		<table>
+			<tbody>
+				<tr>
+					<td>Is registered:</td>
+					<td><? if($user->IsRegistered){ ?>☑<? }else{ ?>☐<? } ?></td>
+				</tr>
+				<? if($user->IsRegistered){ ?>
+					<tr>
+						<td>Can access feeds:</td>
+						<td><? if($user->Benefits->CanAccessFeeds){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+					<tr>
+						<td>Can vote:</td>
+						<td><? if($user->Benefits->CanVote){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+					<tr>
+						<td>Can bulk download:</td>
+						<td><? if($user->Benefits->CanBulkDownload){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+					<tr>
+						<td>Can upload artwork:</td>
+						<td><? if($user->Benefits->CanUploadArtwork){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+					<tr>
+						<td>Can review artwork:</td>
+						<td><? if($user->Benefits->CanReviewArtwork){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+					<tr>
+						<td>Can review own artwork:</td>
+						<td><? if($user->Benefits->CanReviewOwnArtwork){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+					<tr>
+						<td>Can edit users:</td>
+						<td><? if($user->Benefits->CanEditUsers){ ?>☑<? }else{ ?>☐<? } ?></td>
+					</tr>
+				<? } ?>
+			</tbody>
+		</table>
+	</section>
+</main>
+<?= Template::Footer() ?>

www/users/post.php

@@ -0,0 +1,83 @@
+<?
+
+try{
+	session_start();
+	$httpMethod = HttpInput::ValidateRequestMethod([Enums\HttpMethod::Patch]);
+	$exceptionRedirectUrl = '/users';
+
+	$user = User::Get(HttpInput::Int(GET, 'user-id'));
+
+	if(Session::$User === null){
+		throw new Exceptions\LoginRequiredException();
+	}
+
+	if(!Session::$User->Benefits->CanEditUsers){
+		throw new Exceptions\InvalidPermissionsException();
+	}
+
+	// PATCHing a `User`.
+	if($httpMethod == Enums\HttpMethod::Patch){
+		$exceptionRedirectUrl = $user->Url . '/edit';
+
+		$user->FillFromHttpPost();
+
+		$generateNewUuid = HttpInput::Bool(POST, 'generate-new-uuid') ?? false;
+
+		if($generateNewUuid){
+			$oldUuid = $user->Uuid;
+			$user->GenerateUuid();
+		}
+
+		$passwordAction = Enums\PasswordActionType::tryFrom(HttpInput::Str(POST, 'password-action') ?? '') ?? Enums\PasswordActionType::None;
+		$oldPasswordHash = $user->PasswordHash;
+
+		switch($passwordAction){
+			case Enums\PasswordActionType::Delete:
+				$user->PasswordHash = null;
+				break;
+
+			case Enums\PasswordActionType::Edit:
+				$password = HttpInput::Str(POST, 'user-password');
+
+				if($password !== null){
+					$user->PasswordHash = password_hash($password, PASSWORD_DEFAULT);
+				}
+
+				break;
+		}
+
+		$user->Save();
+
+		$_SESSION['is-user-saved'] = true;
+
+		http_response_code(Enums\HttpCode::SeeOther->value);
+		header('Location: ' . $user->Url);
+	}
+}
+catch(Exceptions\LoginRequiredException){
+	Template::RedirectToLogin();
+}
+catch(Exceptions\InvalidPermissionsException){
+	Template::Emit403();
+}
+catch(Exceptions\UserNotFoundException){
+	Template::Emit404();
+}
+catch(Exceptions\InvalidUserException | Exceptions\UserExistsException $ex){
+	if($generateNewUuid){
+		$user->Uuid = $oldUuid;
+		$_SESSION['generate-new-uuid'] = $generateNewUuid;
+	}
+
+	$_SESSION['password-action'] = $passwordAction;
+
+	if($ex instanceof Exceptions\InvalidUserException && $ex->Has(Exceptions\BenefitsRequirePasswordException::class)){
+		$user->PasswordHash = $oldPasswordHash;
+	}
+
+	$_SESSION['user'] = $user;
+	$_SESSION['exception'] = $ex;
+
+	http_response_code(Enums\HttpCode::SeeOther->value);
+	header('Location: ' . $exceptionRedirectUrl);
+}