From f7bfdf58def6aadc922e1632f407d1418269a0d7 Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Sat, 9 Jul 2022 19:40:17 +0300
Subject: initial

---
 handler/admin/AdminRequestHandler.php |  20 ++++++
 handler/admin/AutoAddOrEdit.php       |  97 ++++++++++++++++++++++++++
 handler/admin/AutoDelete.php          |  34 +++++++++
 handler/admin/AutoEdit.php            | 127 ++++++++++++++++++++++++++++++++++
 handler/admin/Index.php               |  13 ++++
 handler/admin/Login.php               |  31 +++++++++
 handler/admin/Logout.php              |  17 +++++
 handler/admin/MarkdownPreview.php     |  22 ++++++
 handler/admin/PageAdd.php             |  66 ++++++++++++++++++
 handler/admin/PostAdd.php             |  68 ++++++++++++++++++
 handler/admin/UploadDelete.php        |  25 +++++++
 handler/admin/UploadEditNote.php      |  25 +++++++
 handler/admin/Uploads.php             |  73 +++++++++++++++++++
 13 files changed, 618 insertions(+)
 create mode 100644 handler/admin/AdminRequestHandler.php
 create mode 100644 handler/admin/AutoAddOrEdit.php
 create mode 100644 handler/admin/AutoDelete.php
 create mode 100644 handler/admin/AutoEdit.php
 create mode 100644 handler/admin/Index.php
 create mode 100644 handler/admin/Login.php
 create mode 100644 handler/admin/Logout.php
 create mode 100644 handler/admin/MarkdownPreview.php
 create mode 100644 handler/admin/PageAdd.php
 create mode 100644 handler/admin/PostAdd.php
 create mode 100644 handler/admin/UploadDelete.php
 create mode 100644 handler/admin/UploadEditNote.php
 create mode 100644 handler/admin/Uploads.php

(limited to 'handler/admin')

diff --git a/handler/admin/AdminRequestHandler.php b/handler/admin/AdminRequestHandler.php
new file mode 100644
index 0000000..04b7cde
--- /dev/null
+++ b/handler/admin/AdminRequestHandler.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace handler\admin;
+
+use admin;
+use Response;
+
+class AdminRequestHandler extends \RequestHandler {
+
+    public function beforeDispatch(): ?Response {
+        $this->skin->static[] = '/css/admin.css';
+        $this->skin->static[] = '/js/admin.js';
+
+        if (!($this instanceof Login) && !admin::isAdmin())
+            throw new \ForbiddenException('looks like you are not admin');
+
+        return null;
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/AutoAddOrEdit.php b/handler/admin/AutoAddOrEdit.php
new file mode 100644
index 0000000..027c827
--- /dev/null
+++ b/handler/admin/AutoAddOrEdit.php
@@ -0,0 +1,97 @@
+<?php
+
+namespace handler\admin;
+
+use Page;
+use Post;
+use Response;
+
+abstract class AutoAddOrEdit extends AdminRequestHandler {
+
+    public function beforeDispatch(): ?Response {
+        $this->skin->setOptions([
+            'full_width' => true,
+            'no_footer' => true
+        ]);
+        return parent::beforeDispatch();
+    }
+
+    protected function _get_postAdd(
+        string $title = '',
+        string $text = '',
+        ?array $tags = null,
+        string $short_name = '',
+        ?string $error_code = null
+    ): Response {
+        $this->skin->addLangKeys($this->lang->search('/^(err_)?blog_/'));
+        $this->skin->title = $this->lang['blog_write'];
+        return $this->skin->renderPage('admin/postForm',
+            title: $title,
+            text: $text,
+            tags: $tags ? implode(', ', $tags) : '',
+            short_name: $short_name,
+            error_code: $error_code);
+    }
+
+    protected function _get_postEdit(
+        Post $post,
+        string $title = '',
+        string $text = '',
+        ?array $tags = null,
+        bool $visible = false,
+        string $short_name = '',
+        ?string $error_code = null,
+        bool $saved = false,
+    ): Response {
+        $this->skin->addLangKeys($this->lang->search('/^(err_)?blog_/'));
+        $this->skin->title = ($this->lang)('blog_post_edit_title', $post->title);
+        return $this->skin->renderPage('admin/postForm',
+            is_edit: true,
+            post_id: $post->id,
+            post_url: $post->getUrl(),
+            title: $title,
+            text: $text,
+            tags: $tags ? implode(', ', $tags) : '',
+            visible: $visible,
+            saved: $saved,
+            short_name: $short_name,
+            error_code: $error_code
+        );
+    }
+
+    protected function _get_pageAdd(
+        string $name,
+        string $title = '',
+        string $text = '',
+        ?string $error_code = null
+    ): Response {
+        $this->skin->addLangKeys($this->lang->search('/^(err_)?pages_/'));
+        $this->skin->title = ($this->lang)('pages_create_title', $name);
+        return $this->skin->renderPage('admin/pageForm',
+            short_name: $name,
+            title: $title,
+            text: $text,
+            error_code: $error_code);
+    }
+
+    protected function _get_pageEdit(
+        Page $page,
+        string $title = '',
+        string $text = '',
+        bool $saved = false,
+        bool $visible = false,
+        ?string $error_code = null
+    ): Response {
+        $this->skin->addLangKeys($this->lang->search('/^(err_)?pages_/'));
+        $this->skin->title = ($this->lang)('pages_page_edit_title', $page->shortName.'.html');
+        return $this->skin->renderPage('admin/pageForm',
+            is_edit: true,
+            short_name: $page->shortName,
+            title: $title,
+            text: $text,
+            visible: $visible,
+            saved: $saved,
+            error_code: $error_code);
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/AutoDelete.php b/handler/admin/AutoDelete.php
new file mode 100644
index 0000000..80c8eef
--- /dev/null
+++ b/handler/admin/AutoDelete.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace handler\admin;
+
+use csrf;
+use NotFoundException;
+use pages;
+use posts;
+use RedirectResponse;
+use Response;
+
+class AutoDelete extends AdminRequestHandler {
+
+    public function get(): Response {
+        list($name) = $this->input('short_name');
+
+        $post = posts::getPostByName($name);
+        if ($post) {
+            csrf::check('delpost'.$post->id);
+            posts::delete($post);
+            return new RedirectResponse('/');
+        }
+
+        $page = pages::getPageByName($name);
+        if ($page) {
+            csrf::check('delpage'.$page->shortName);
+            pages::delete($page);
+            return new RedirectResponse('/');
+        }
+
+        throw new NotFoundException();
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/AutoEdit.php b/handler/admin/AutoEdit.php
new file mode 100644
index 0000000..9d70c5b
--- /dev/null
+++ b/handler/admin/AutoEdit.php
@@ -0,0 +1,127 @@
+<?php
+
+namespace handler\admin;
+
+use csrf;
+use pages;
+use posts;
+use Response;
+
+class AutoEdit extends AutoAddOrEdit {
+
+    public function get(): Response {
+        list($short_name, $saved) = $this->input('short_name, b:saved');
+
+        $post = posts::getPostByName($short_name);
+        if ($post) {
+            $tags = $post->getTags();
+            return $this->_get_postEdit($post,
+                tags: $post->getTags(),
+                saved: $saved,
+                title: $post->title,
+                text: $post->md,
+                visible: $post->visible,
+                short_name: $post->shortName,
+            );
+        }
+
+        $page = pages::getPageByName($short_name);
+        if ($page) {
+            return $this->_get_pageEdit($page,
+                title: $page->title,
+                text: $page->md,
+                visible: $page->visible,
+                saved: $saved,
+            );
+        }
+
+        throw new \NotFoundException();
+    }
+
+    public function post(): Response {
+        list($short_name) = $this->input('short_name');
+
+        $post = posts::getPostByName($short_name);
+        if ($post) {
+            csrf::check('editpost'.$post->id);
+
+            list($text, $title, $tags, $visible, $short_name)
+                = $this->input('text, title, tags, b:visible, new_short_name');
+
+            $tags = posts::splitStringToTags($tags);
+            $error_code = null;
+
+            if (!$title) {
+                $error_code = 'no_title';
+            } else if (!$text) {
+                $error_code = 'no_text';
+            } else if (empty($tags)) {
+                $error_code = 'no_tags';
+            } else if (empty($short_name)) {
+                $error_code = 'no_short_name';
+            }
+
+            if ($error_code)
+                $this->_get_postEdit($post,
+                    text: $text,
+                    title: $title,
+                    tags: $tags,
+                    visible: $visible,
+                    short_name: $short_name,
+                    error_code: $error_code
+                );
+
+            $post->edit([
+                'title' => $title,
+                'md' => $text,
+                'visible' => (int)$visible,
+                'short_name' => $short_name
+            ]);
+            $tag_ids = posts::getTagIds($tags);
+            $post->setTagIds($tag_ids);
+
+            return new \RedirectResponse($post->getUrl().'edit/?saved=1');
+        }
+
+        $page = pages::getPageByName($short_name);
+        if ($page) {
+            csrf::check('editpage'.$page->shortName);
+
+            list($text, $title, $visible, $short_name)
+                = $this->input('text, title, b:visible, new_short_name');
+
+            $text = trim($text);
+            $title = trim($title);
+            $error_code = null;
+
+            if (!$title) {
+                $error_code = 'no_title';
+            } else if (!$text) {
+                $error_code = 'no_text';
+            } else if (!$short_name) {
+                $error_code = 'no_short_name';
+            }
+
+            if ($error_code) {
+                return $this->_get_pageEdit($page,
+                    title: $title,
+                    text: $text,
+                    visible: $visible,
+                    error_code: $error_code
+                );
+            }
+
+            $page->edit([
+                'title' => $title,
+                'md' => $text,
+                'visible' => (int)$visible,
+                'short_name' => $short_name,
+            ]);
+
+            return new \RedirectResponse($page->getUrl().'edit/?saved=1');
+        }
+
+        throw new \NotFoundException();
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/Index.php b/handler/admin/Index.php
new file mode 100644
index 0000000..e829913
--- /dev/null
+++ b/handler/admin/Index.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace handler\admin;
+
+use Response;
+
+class Index extends AdminRequestHandler {
+
+    public function get(): Response {
+        return $this->skin->renderPage('admin/index');
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/Login.php b/handler/admin/Login.php
new file mode 100644
index 0000000..cade137
--- /dev/null
+++ b/handler/admin/Login.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace handler\admin;
+
+use admin;
+use csrf;
+use RedirectResponse;
+use Response;
+use UnauthorizedException;
+
+class Login extends AdminRequestHandler {
+
+    public function get(): Response {
+        if (admin::isAdmin())
+            return new RedirectResponse('/admin/');
+        return $this->skin->renderPage('admin/login');
+    }
+
+    public function post(): Response {
+        csrf::check('adminlogin');
+        $password = $_POST['password'] ?? '';
+        $valid = admin::checkPassword($password);
+        if ($valid) {
+            admin::logAuth();
+            admin::setCookie();
+            return new RedirectResponse('/admin/');
+        }
+        throw new UnauthorizedException('nice try');
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/Logout.php b/handler/admin/Logout.php
new file mode 100644
index 0000000..bb11e43
--- /dev/null
+++ b/handler/admin/Logout.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace handler\admin;
+
+use admin;
+use csrf;
+use Response;
+
+class Logout extends AdminRequestHandler {
+
+    public function get(): Response {
+        csrf::check('logout');
+        admin::unsetCookie();
+        return new \RedirectResponse('/admin/login/');
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/MarkdownPreview.php b/handler/admin/MarkdownPreview.php
new file mode 100644
index 0000000..e513709
--- /dev/null
+++ b/handler/admin/MarkdownPreview.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace handler\admin;
+
+use Response;
+
+class MarkdownPreview extends AdminRequestHandler {
+
+    public function post(): Response {
+        list($md, $title, $use_image_previews) = $this->input('md, title, b:use_image_previews');
+
+        $html = \markup::markdownToHtml($md, $use_image_previews);
+
+        $ctx = new \SkinContext('\\skin\\admin');
+        $html = $ctx->markdownPreview(
+            unsafe_html: $html,
+            title: $title
+        );
+        return new \AjaxOkResponse(['html' => $html]);
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/PageAdd.php b/handler/admin/PageAdd.php
new file mode 100644
index 0000000..8754f0f
--- /dev/null
+++ b/handler/admin/PageAdd.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace handler\admin;
+
+use csrf;
+use NotFoundException;
+use pages;
+use RedirectResponse;
+use Response;
+
+class PageAdd extends AutoAddOrEdit {
+
+    public function get(): Response {
+        list($name) = $this->input('short_name');
+        $page = pages::getPageByName($name);
+        if ($page)
+            throw new NotFoundException();
+
+        return $this->_get_pageAdd($name);
+    }
+
+    public function post(): Response {
+        csrf::check('addpage');
+
+        list($name) = $this->input('short_name');
+        $page = pages::getPageByName($name);
+        if ($page)
+            throw new NotFoundException();
+
+        $text = trim($_POST['text'] ?? '');
+        $title = trim($_POST['title'] ?? '');
+        $error_code = null;
+
+        if (!$title) {
+            $error_code = 'no_title';
+        } else if (!$text) {
+            $error_code = 'no_text';
+        }
+
+        if ($error_code) {
+            return $this->_get_pageAdd(
+                name: $name,
+                text: $text,
+                title: $title,
+                error_code: $error_code
+            );
+        }
+
+        if (!pages::add([
+            'short_name' => $name,
+            'title' => $title,
+            'md' => $text
+        ])) {
+            return $this->_get_pageAdd(
+                name: $name,
+                text: $text,
+                title: $title,
+                error_code: 'db_err'
+            );
+        }
+
+        $page = pages::getPageByName($name);
+        return new RedirectResponse($page->getUrl());
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/PostAdd.php b/handler/admin/PostAdd.php
new file mode 100644
index 0000000..c21a239
--- /dev/null
+++ b/handler/admin/PostAdd.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace handler\admin;
+
+use csrf;
+use posts;
+use RedirectResponse;
+use Response;
+
+class PostAdd extends AutoAddOrEdit {
+
+    public function get(): Response {
+        return $this->_get_postAdd();
+    }
+
+    public function post(): Response {
+        csrf::check('addpost');
+
+        list($text, $title, $tags, $visible, $short_name)
+            = $this->input('text, title, tags, b:visible, short_name');
+        $tags = posts::splitStringToTags($tags);
+
+        $error_code = null;
+
+        if (!$title) {
+            $error_code = 'no_title';
+        } else if (!$text) {
+            $error_code = 'no_text';
+        } else if (empty($tags)) {
+            $error_code = 'no_tags';
+        } else if (empty($short_name)) {
+            $error_code = 'no_short_name';
+        }
+
+        if ($error_code)
+            return $this->_get_postAdd(
+                text: $text,
+                title: $title,
+                tags: $tags,
+                short_name: $short_name,
+                error_code: $error_code
+            );
+
+        $id = posts::add([
+            'title' => $title,
+            'md' => $text,
+            'visible' => (int)$visible,
+            'short_name' => $short_name,
+        ]);
+
+        if (!$id)
+            $this->_get_postAdd(
+                text: $text,
+                title: $title,
+                tags: $tags,
+                short_name: $short_name,
+                error_code: 'db_err'
+            );
+
+        // set tags
+        $post = posts::get($id);
+        $tag_ids = posts::getTagIds($tags);
+        $post->setTagIds($tag_ids);
+
+        return new RedirectResponse($post->getUrl());
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/UploadDelete.php b/handler/admin/UploadDelete.php
new file mode 100644
index 0000000..26b58b7
--- /dev/null
+++ b/handler/admin/UploadDelete.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace handler\admin;
+
+use csrf;
+use RedirectResponse;
+use Response;
+
+class UploadDelete extends AdminRequestHandler {
+
+    public function get(): Response {
+        list($id) = $this->input('i:id');
+
+        $upload = \uploads::get($id);
+        if (!$upload)
+            return new RedirectResponse('/uploads/?error='.urlencode('upload not found'));
+
+        csrf::check('delupl'.$id);
+
+        \uploads::delete($id);
+
+        return new RedirectResponse('/uploads/');
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/UploadEditNote.php b/handler/admin/UploadEditNote.php
new file mode 100644
index 0000000..e7cdbb2
--- /dev/null
+++ b/handler/admin/UploadEditNote.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace handler\admin;
+
+use csrf;
+use Response;
+
+class UploadEditNote extends AdminRequestHandler {
+
+    public function post(): Response {
+        list($id) = $this->input('i:id');
+
+        $upload = \uploads::get($id);
+        if (!$upload)
+            return new \RedirectResponse('/uploads/?error='.urlencode('upload not found'));
+
+        csrf::check('editupl'.$id);
+
+        $note = $_POST['note'] ?? '';
+        $upload->setNote($note);
+
+        return new \RedirectResponse('/uploads/');
+    }
+
+}
\ No newline at end of file
diff --git a/handler/admin/Uploads.php b/handler/admin/Uploads.php
new file mode 100644
index 0000000..0cbb2f6
--- /dev/null
+++ b/handler/admin/Uploads.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace handler\admin;
+
+use csrf;
+use RedirectResponse;
+use Response;
+
+// So it's 2022 outside, and it's PHP 8.1 already, which is actually so cool comparing to 5.x and even 7.4, but...
+// ...class names are still case-insensitive?!! And I can't import \uploads because it's the same as Uploads?!!
+//
+// PHP, what the fuck is wrong with you?!
+
+class Uploads extends AdminRequestHandler {
+
+    public function get(): Response {
+        list($error) = $this->input('error');
+        $uploads = \uploads::getAll();
+
+        $this->skin->title = ($this->lang)('blog_upload');
+        return $this->skin->renderPage('admin/uploads',
+            error: $error,
+            uploads: $uploads);
+    }
+
+    public function post(): Response {
+        csrf::check('addupl');
+
+        list($custom_name, $note) = $this->input('name, note');
+
+        if (!isset($_FILES['files']))
+            return new RedirectResponse('/uploads/?error='.urlencode('no file'));
+
+        $files = [];
+        for ($i = 0; $i < count($_FILES['files']['name']); $i++) {
+            $files[] = [
+                'name' => $_FILES['files']['name'][$i],
+                'type' => $_FILES['files']['type'][$i],
+                'tmp_name' => $_FILES['files']['tmp_name'][$i],
+                'error' => $_FILES['files']['error'][$i],
+                'size' => $_FILES['files']['size'][$i],
+            ];
+        }
+
+        if (count($files) > 1) {
+            $note = '';
+            $custom_name = '';
+        }
+
+        foreach ($files as $f) {
+            if ($f['error'])
+                return new RedirectResponse('/uploads/?error='.urlencode('error code '.$f['error']));
+
+            if (!$f['size'])
+                return new RedirectResponse('/uploads/?error='.urlencode('received empty file'));
+
+            $ext = extension($f['name']);
+            if (!\uploads::isExtensionAllowed($ext))
+                return new RedirectResponse('/uploads/?error='.urlencode('extension not allowed'));
+
+            $upload_id = \uploads::add(
+                $f['tmp_name'],
+                $custom_name ?: $f['name'],
+                $note);
+
+            if (!$upload_id)
+                return new RedirectResponse('/uploads/?error='.urlencode('failed to create upload'));
+        }
+
+        return new RedirectResponse('/uploads/');
+    }
+
+}
\ No newline at end of file
-- 
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