feat(ui): add error handling, flash messages and SEO optimization

- Add custom error pages (404, 403, 500) with user-friendly messages
- Add flash message system with signed cookies for security
- Add toast notifications with auto-dismiss and manual close
- Add comprehensive SEO meta tags (description, keywords, OG, Twitter)
- Add canonical URLs for SEO
- Update routes to use slug-based URLs (/posts/{slug} instead of /posts/{id})
- Add Open Graph and Twitter Card meta tags for social sharing
- Add favicon SVG
- Update all templates with proper meta tags and URLs
- Add error handlers registration in main.py
- Add flash middleware for request handling
- Install itsdangerous dependency
This commit is contained in:
2026-05-02 16:23:57 +03:00
parent 4eee261107
commit b1878e470f
13 changed files with 747 additions and 42 deletions

View File

@@ -1,9 +1,35 @@
<!DOCTYPE html>
<html lang="ru" data-testid="html-root">
<html lang="en" data-testid="html-root">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="{% block meta_description %}Blog - A modern blogging platform{% endblock %}">
<meta name="description" content="{% block meta_description %}Blog - A modern blogging platform built with FastAPI{% endblock %}">
<meta name="keywords" content="{% block meta_keywords %}blog, articles, posts, writing{% endblock %}">
<meta name="author" content="{% block meta_author %}Blog Team{% endblock %}">
<meta name="robots" content="{% block meta_robots %}index, follow{% endblock %}">
<!-- Canonical URL -->
<link rel="canonical" href="{% block canonical_url %}{{ request.url }}{% endblock %}">
<!-- Open Graph / Facebook -->
<meta property="og:type" content="{% block og_type %}website{% endblock %}">
<meta property="og:url" content="{% block og_url %}{{ request.url }}{% endblock %}">
<meta property="og:title" content="{% block og_title %}{{ self.title() }}{% endblock %}">
<meta property="og:description" content="{% block og_description %}{{ self.meta_description() }}{% endblock %}">
<meta property="og:image" content="{% block og_image %}{{ request.base_url }}static/images/og-default.png{% endblock %}">
<meta property="og:site_name" content="Blog">
<!-- Twitter -->
<meta property="twitter:card" content="{% block twitter_card %}summary_large_image{% endblock %}">
<meta property="twitter:url" content="{% block twitter_url %}{{ request.url }}{% endblock %}">
<meta property="twitter:title" content="{% block twitter_title %}{{ self.title() }}{% endblock %}">
<meta property="twitter:description" content="{% block twitter_description %}{{ self.meta_description() }}{% endblock %}">
<meta property="twitter:image" content="{% block twitter_image %}{{ self.og_image() }}{% endblock %}">
<!-- Favicon -->
<link rel="icon" type="image/svg+xml" href="/static/images/favicon.svg">
<link rel="alternate icon" href="/static/images/favicon.ico">
<title data-testid="page-title">{% block title %}Blog{% endblock %}</title>
<link rel="stylesheet" href="/static/css/themes/theme-light.css" data-testid="theme-light-stylesheet">
@@ -17,6 +43,18 @@
<body data-testid="body">
{% include "partials/header.html" %}
<!-- Flash Messages -->
{% if flash_messages %}
<div class="flash-container" data-testid="flash-container">
{% for msg in flash_messages %}
<div class="flash-message flash-{{ msg.category }}" data-testid="flash-message-{{ msg.category }}" role="alert">
<span class="flash-text" data-testid="flash-text">{{ msg.message }}</span>
<button type="button" class="flash-close" data-testid="flash-close" aria-label="Close message">&times;</button>
</div>
{% endfor %}
</div>
{% endif %}
<main class="main-wrapper" data-testid="main-content">
<div class="container" data-testid="container">
{% block content %}{% endblock %}
@@ -26,6 +64,119 @@
{% include "partials/footer.html" %}
<script src="/static/js/theme.js" data-testid="theme-script"></script>
<script src="/static/js/flash.js" data-testid="flash-script"></script>
{% block extra_js %}{% endblock %}
</body>
</html>
<style>
.flash-container {
position: fixed;
top: 5rem;
right: 1rem;
z-index: 1000;
max-width: 400px;
width: calc(100% - 2rem);
}
.flash-message {
display: flex;
align-items: center;
justify-content: space-between;
gap: 1rem;
padding: 1rem 1.25rem;
margin-bottom: 0.75rem;
border-radius: 8px;
border: 1px solid transparent;
box-shadow: 0 4px 12px var(--color-shadow);
animation: slideIn 0.3s ease;
}
@keyframes slideIn {
from {
opacity: 0;
transform: translateX(100%);
}
to {
opacity: 1;
transform: translateX(0);
}
}
.flash-message.fade-out {
animation: slideOut 0.3s ease forwards;
}
@keyframes slideOut {
from {
opacity: 1;
transform: translateX(0);
}
to {
opacity: 0;
transform: translateX(100%);
}
}
.flash-success {
background-color: var(--color-success-bg);
border-color: var(--color-success-border);
color: var(--color-success-text);
}
.flash-error {
background-color: var(--color-error-bg);
border-color: var(--color-error-border);
color: var(--color-error-text);
}
.flash-warning {
background-color: var(--color-warning-bg);
border-color: var(--color-warning-border);
color: var(--color-warning-text);
}
.flash-info {
background-color: var(--color-info-bg);
border-color: var(--color-info-border);
color: var(--color-info-text);
}
.flash-text {
flex: 1;
font-size: 0.9375rem;
}
.flash-close {
display: flex;
align-items: center;
justify-content: center;
width: 1.5rem;
height: 1.5rem;
padding: 0;
background: transparent;
border: none;
color: inherit;
font-size: 1.25rem;
cursor: pointer;
opacity: 0.6;
transition: opacity 0.2s ease;
}
.flash-close:hover {
opacity: 1;
}
@media (max-width: 768px) {
.flash-container {
top: 4rem;
left: 1rem;
right: 1rem;
max-width: none;
}
.flash-message {
padding: 0.875rem 1rem;
}
}
</style>