Merge branch 'add-cenital-recipe' of https://github.com/rpazos98/calibre

recipes/cenital.recipe

@@ -0,0 +1,142 @@
+__license__   = 'GPL v3'
+__copyright__ = '2026, Rodrigo Pazos'
+
+from calibre.web.feeds.news import BasicNewsRecipe
+
+
+class Cenital(BasicNewsRecipe):
+    title            = 'Cenital'
+    __author__       = 'Rodrigo Pazos'
+    description      = (
+        'Revista semanal con el último número de cada newsletter semanal de Cenital: '
+        'análisis político, económico, internacional y cultural argentino. '
+        'Incluye: Mundo propio, Off the record, Rollover, Receta para el desastre, '
+        'Una calle me separa, El hilo conductor, Sistema 2 y Kohan.'
+    )
+    publisher        = 'Cenital'
+    language         = 'es_AR'
+    category         = 'politics, economics, Argentina, news'
+    publication_type = 'magazine'
+
+    oldest_article        = 30
+    max_articles_per_feed = 1
+    timefmt               = ' [%a, %d %b %Y]'
+
+    # Use full content from RSS <content:encoded> — avoids fetching each article individually
+    use_embedded_content = True
+
+    no_stylesheets       = True
+    remove_javascript    = True
+    auto_cleanup         = True
+    compress_news_images = True
+
+    masthead_url = 'https://cenital.com/wp-content/uploads/2020/04/cenital-logo.png'
+
+    # 8 weekly newsletters (Mon–Fri dailies "Primera mañana" and "Antes de mañana" excluded)
+    feeds = [
+        ('Mundo propio',            'https://cenital.com/secciones/newsletters/mundo-propio/feed/'),
+        ('Off the record',          'https://cenital.com/secciones/newsletters/off-the-record/feed/'),
+        ('Rollover',                'https://cenital.com/secciones/newsletters/rollover/feed/'),
+        ('Receta para el desastre', 'https://cenital.com/secciones/newsletters/receta-para-el-desastre/feed/'),
+        ('Una calle me separa',     'https://cenital.com/secciones/newsletters/una-calle-me-separa/feed/'),
+        ('El hilo conductor',       'https://cenital.com/secciones/newsletters/el-hilo-conductor/feed/'),
+        ('Sistema 2',               'https://cenital.com/secciones/newsletters/sistema-dos/feed/'),
+        ('Kohan',                   'https://cenital.com/secciones/newsletters/kohan/feed/'),
+    ]
+
+    remove_tags = [
+        dict(name=['script', 'style', 'iframe', 'form']),
+        dict(attrs={'class': lambda x: x and any(c in x for c in [
+            'wp-block-subscribe',
+            'wp-block-buttons',
+            'newsletter',
+            'subscription',
+            'suscripcion',
+        ])}),
+    ]
+
+    remove_attributes = ['style', 'onclick', 'data-src']
+
+    extra_css = '''
+        h1, h2 { font-size: 1.4em; margin-bottom: 0.3em; }
+        p { line-height: 1.5; margin-bottom: 0.8em; }
+        img { max-width: 100%; height: auto; }
+    '''
+
+    def get_cover_url(self):
+        '''
+        Builds a magazine-style cover: 2x4 grid of the featured image from each
+        newsletter's latest article, with a dark overlay and the Cenital logo centred.
+        Falls back to the static wide image if PIL is unavailable.
+        '''
+        import tempfile
+        from io import BytesIO
+        from xml.etree import ElementTree as ET
+        from urllib.request import urlopen, Request
+
+        try:
+            from PIL import Image
+        except ImportError:
+            return 'https://cenital.com/wp-content/uploads/2021/12/cenital_wide.jpg'
+
+        MEDIA_NS = '{http://search.yahoo.com/mrss/}'
+        HEADERS  = {'User-Agent': 'Mozilla/5.0'}
+        W, H     = 800, 1200
+        COLS     = 2
+        ROWS     = len(self.feeds) // COLS   # 4 rows for 8 feeds
+        CELL_W   = W // COLS
+        CELL_H   = H // ROWS
+
+        cover = Image.new('RGB', (W, H), (15, 15, 15))
+        col, row = 0, 0
+
+        for _name, feed_url in self.feeds:
+            if row >= ROWS:
+                break
+            try:
+                root    = ET.fromstring(urlopen(Request(feed_url, headers=HEADERS), timeout=15).read())
+                channel = root.find('channel')
+                item    = channel.find('item') if channel is not None else None
+                if item is None:
+                    raise ValueError('empty feed')
+
+                media   = item.find(MEDIA_NS + 'content')
+                img_url = media.get('url') if media is not None else None
+                if not img_url:
+                    raise ValueError('no media:content')
+
+                tile = Image.open(BytesIO(
+                    urlopen(Request(img_url, headers=HEADERS), timeout=15).read()
+                )).convert('RGB').resize((CELL_W, CELL_H), Image.LANCZOS)
+                cover.paste(tile, (col * CELL_W, row * CELL_H))
+
+            except Exception:
+                pass   # leave that cell dark — don't abort the whole cover
+
+            col += 1
+            if col >= COLS:
+                col = 0
+                row += 1
+
+        # Semi-transparent dark overlay so the white logo is always readable
+        overlay = Image.new('RGBA', (W, H), (0, 0, 0, 150))
+        cover   = Image.alpha_composite(cover.convert('RGBA'), overlay)
+
+        # Cenital logo centred
+        try:
+            logo = Image.open(BytesIO(
+                urlopen(Request(
+                    'https://cenital.com/wp-content/uploads/2020/04/cenital-logo.png',
+                    headers=HEADERS
+                ), timeout=15).read()
+            )).convert('RGBA')
+            logo_w = int(W * 0.65)
+            logo_h = int(logo.height * logo_w / logo.width)
+            logo   = logo.resize((logo_w, logo_h), Image.LANCZOS)
+            cover.paste(logo, ((W - logo_w) // 2, (H - logo_h) // 2), logo)
+        except Exception:
+            pass
+
+        tmp = tempfile.NamedTemporaryFile(suffix='.jpg', delete=False)
+        cover.convert('RGB').save(tmp.name, 'JPEG', quality=90)
+        return tmp.name