From 60079467f60229032d6ee84a17d6aeb3d76b0df0 Mon Sep 17 00:00:00 2001
From: Cyrille L <echolib@a-lec.org>
Date: Mon, 16 Jan 2023 23:12:45 +0100
Subject: [PATCH] indev: added pic to share to social network

---
 README.md                         |  4 ++++
 src/var/lib/tyto/program/check.py | 20 ++++++++++++++++++++
 src/var/lib/tyto/program/html.py  |  4 ++--
 src/var/lib/tyto/program/tyto.py  |  3 ++-
 4 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index ea91fe9..355a99c 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,10 @@ abbr:   NOM (en majuscule)
         Définition du NOM
         nom (forme à afficher dans l'artile (optionnel))
 
+# L'image doit d'abord être configurée
+# Utiliser l'image précisée comme défaut dans les réseaux sociaux
+snpic:  Nom
+
 # Séparateur d'au moins 5 "-" pour définir la fin
 # des métadonnées d'entête de l'article
 ----------
diff --git a/src/var/lib/tyto/program/check.py b/src/var/lib/tyto/program/check.py
index 26fbc82..e7a098b 100644
--- a/src/var/lib/tyto/program/check.py
+++ b/src/var/lib/tyto/program/check.py
@@ -185,6 +185,10 @@ def check_headers(post_header):
   global date, title, author, tags, about
   global stat_links, stat_images, stat_files, stat_raws, stat_abbrs
   global post_tags
+  global snpic_url
+  
+  snshare = False
+  snpic_name = ''
   
   # Needed Tags
   title = author = tags = about = ''
@@ -454,6 +458,21 @@ def check_headers(post_header):
                   '__%s'%file_name, web_link
                   )
 
+    # snpic (set image to share to social networks)
+    if snpic_name: continue
+    tag = tyto.headers[11] # snpic:
+    if line.startswith(tag):
+      snpic_name = post_header[ln - 1].rsplit(tag)[1].lstrip()
+      for ln, line in enumerate(post_header, 1):
+        if re.search(r"^image:\s+hello$", line):
+          image_uri  = post_header[ln].lstrip()
+          check_file_uri('image', image_uri, ln + 1)
+          snshare = True
+          snpic_url = '%s%s'%(domain_url, web_uri)
+          break
+      if not snshare:
+        tyto.exiting("10", '%s %s'%(tyto.headers[6], snpic_name), True)
+    
   # Exit if error in optional tags
   #-------------------------------
   if post_err:
@@ -644,6 +663,7 @@ def create_database():
              'author = "%s"\n'%author + \
              'tags   = "%s"\n'%tags + \
              'date   = %s\n'%str(date) + \
+             'snpic  = "%s"\n'%snpic_url + \
              '\n# Post configuration from optional tags'
              
   if stat_abbrs > 0:
diff --git a/src/var/lib/tyto/program/html.py b/src/var/lib/tyto/program/html.py
index 87aeb39..a193600 100644
--- a/src/var/lib/tyto/program/html.py
+++ b/src/var/lib/tyto/program/html.py
@@ -18,7 +18,7 @@
 #**********************************************************************
 import os, sys
 
-import tyto, domain, html
+import tyto, domain
 
 # Load domain configuration DB
 exec(open(tyto.domain_conf).read())
@@ -126,7 +126,7 @@ def create_metas_page():
   '    <meta property="og:type" content="article" />\n' + \
   '    <meta property="og:url" content="%s" />\n'%post_url + \
   '    <meta property="og:description" content="%s" />\n'%about + \
-  '    <meta property="og:image" content="" />\n' + \
+  '    <meta property="og:image" content="%s" />\n'%snpic + \
   '%s'%relme + \
   '\n<!--# include virtual="/template/metas.html"-->\n' + \
   '    <title>%s</title>'%title
diff --git a/src/var/lib/tyto/program/tyto.py b/src/var/lib/tyto/program/tyto.py
index 2099f25..57c9c7d 100644
--- a/src/var/lib/tyto/program/tyto.py
+++ b/src/var/lib/tyto/program/tyto.py
@@ -108,7 +108,8 @@ headers = (
            'file:',
            'abbr:',
            'raw:',
-           '#'
+           '#',
+           'snpic:',
           )