From 10c6b1f0978710cf5a9f309b6fdcaef922f9b07f Mon Sep 17 00:00:00 2001
From: Tomas Bzatek <tbzatek@users.sourceforge.net>
Date: Fri, 8 Oct 2010 17:02:47 +0200
Subject: Add basic Atom feed writer

---
 sample/src/entities/index.xml      |   6 +
 sample/src/index.xml               |  10 ++
 sample/src/setup.xml               |  43 ++++--
 sample/src/subdir/Tatry/index.xml  |   3 +
 src/Makefile.am                    |   2 +
 src/atom-writer.c                  | 307 +++++++++++++++++++++++++++++++++++++
 src/atom-writer.h                  |  70 +++++++++
 src/cgg.c                          |  34 +++-
 src/generators.c                   |  18 +++
 src/items.c                        |  66 +++++++-
 src/job-manager.c                  |   4 +-
 src/setup.c                        |  43 +++---
 src/setup.h                        |   6 +
 src/xml-parser.c                   |  13 ++
 src/xml-parser.h                   |   1 +
 templates/template-album.tmpl      |   1 +
 templates/template-index.tmpl      |   1 +
 templates/template-view_photo.tmpl |   1 +
 18 files changed, 580 insertions(+), 49 deletions(-)
 create mode 100644 src/atom-writer.c
 create mode 100644 src/atom-writer.h

diff --git a/sample/src/entities/index.xml b/sample/src/entities/index.xml
index 54bdb2f..44776ca 100644
--- a/sample/src/entities/index.xml
+++ b/sample/src/entities/index.xml
@@ -11,6 +11,12 @@
       <author>META Author &#8594; '&amp;' "&amp;copy;"</author>
       <description><![CDATA[META Description &#8594; '&amp;' "&copy;" &lt; <b>ahoj!</b> <!-- comment <b>neco</b> -->]]></description>
     </meta>  
+    <news timestamp="2010-10-07T17:51:51+04:00" type="html" title="Entities test">
+      Entities &#8594; '&amp;' "&amp;copy;"
+    </news>
+    <news timestamp="2010-10-07T18:15:15.000Z" type="html" title="Entities test CDATA">
+      <![CDATA[Entities &#8594; '&amp;' "&copy;" &lt; <b>ahoj!</b> <!-- comment <b>neco</b> -->]]>
+    </news>
   </general>
   
   <items>
diff --git a/sample/src/index.xml b/sample/src/index.xml
index 92813f1..c5ec849 100644
--- a/sample/src/index.xml
+++ b/sample/src/index.xml
@@ -15,6 +15,16 @@
         This is footnote, text after item list.
       ]]>
     </footnote>
+    <news timestamp="2010-10-07T16:43:43+02:00" type="text" title="Introducing Atom feeds">
+      This is the first attempt of an Atom feed generator built in CGG. For the moment only textual and html records are supported.
+      This basic type of feed should serve as a "news" feed, to keep visitors notified about site updates.
+    </news>
+    <news timestamp="2010-10-07T16:47:47+02:00" type="text" title="Multiple news per page supported">
+      You can add second news for the same page, e.g. when you add new subgallery or new images.
+    </news>
+    <news title="Invalid item">
+      This item is missing a timestamp, which is important in Atom feed world. You should not see this record in your feed reader.
+    </news>
   </general>
   
   <items>
diff --git a/sample/src/setup.xml b/sample/src/setup.xml
index 88e7eba..80d04da 100644
--- a/sample/src/setup.xml
+++ b/sample/src/setup.xml
@@ -3,7 +3,7 @@
   <templates>
     <!-- path to templates (design)  -->
     <path>../../templates</path>
-    
+
     <!-- index: top level page -->
     <index>template-index.tmpl</index>   
     <!-- album: list of photos in directory -->
@@ -18,12 +18,12 @@
       styles.css
       scripts-general.js
     ]]></template_files>
-    
+
     <!--  specify index file name to use (default = index.html)                    -->
     <!--  e.g. you may want 'index.php' if your templates are server-side dynamic  -->
     <!--  filename extension is also used for separate image files                 -->
     <index_file>index.html</index_file>
-    
+
     <!--  use root gallery directory to store all support files   -->
     <!--  and relative paths in sub-albums                        -->
     <!--  default = no (old behaviour)                            -->
@@ -53,7 +53,7 @@
     <!--  erase embedded thumbnail image (both from original and big images)?    -->
     <!--   (allowed values: "yes", "no") default = no                            -->
     <erase_embed_thumbnail value="yes" />
-    
+
     <!--  don't copy full size (original) images                         -->
     <!--    <nofullsize/> can be used globally for whole gallery,        -->
     <!--    for full album or selectively for each image                 -->
@@ -64,31 +64,33 @@
     <thumbnail_dir>_thumb</thumbnail_dir>
     <preview_dir>_big</preview_dir>
     <original_dir>_orig</original_dir>
-    
+
     <!--  printf() format-style string of thumbnail file names  -->
     <!--    %s is mandatory, represents file name (with ext.)   -->
     <!--    %d is optional, denotes item index in the album     -->
     <!--       this also avoids conflicts with identical names  -->
     <thumbnail_name_format>thn_%d_%s</thumbnail_name_format>
   </images>
-  
+
   <meta>
-    <!--  global META tags in html head section  -->
-    <!--  these will automatically apply to _all_ pages unless overriden in the album  -->
-    <!--  it's not probably a good idea for large galleries  -->
+    <!--  Global metainformation for use in META tags in html head section  -->
+    <!--  and also for the Atom feed. In case of META tags these will       -->
+    <!--  automatically apply to _all_ pages unless overriden in the album. -->
+    <!--  This is probably not a good idea for large galleries.             -->
     <author>John Doe</author>
+    <author_email>johndoe@example.com</author_email>
     <description>CGG Sample gallery</description>
     <!--  keywords are usually not needed at all  -->
     <keywords>cataract, sample, gallery</keywords>
-    
+
     <!--  use item (image) title as <meta description> tag value          -->
     <!--   (allowed values: "yes", "no") default = yes                    -->
     <!--  this setting is independent from the global meta tags settings  -->
     <use_title_as_meta value="yes" />
-    
+
     <!--  mandatory site name, part of all page titles  -->
     <site title="CGG Testing Site" />
-    
+
     <!--  add your copyright string to every picture                          -->
     <!--  stored in EXIF::Image::Copyright and IPTC::Application2::Copyright  -->
     <!--  usual format: "Copyright, John Smith, 19xx. All rights reserved."   -->
@@ -102,20 +104,31 @@ And the second line.</add_copyright>
     <!--    declared earlier applies to favicons as well                 -->
     <favicon type="image/png">apple-red.png</favicon>
   </meta>
-  
+
   <navigation>
     <!--  enabled: jump to the parent item when going up in the structure  -->
     <!--  disabled: links will always go to the top of the parent page     -->
     <use_inpage_links value="yes" />
-    
+
     <!--  enabled: show "Go Up..." links if not top-level (default)  -->
     <!--  disabled: never show that link                             -->
     <show_go_up value="yes" />
-    
+
     <!--  show/hide exif table in single photo view  (default = yes)  -->
     <show_exif_table value="yes" />
   </navigation>
 
+  <feed enable="yes">
+    <!--  Atom feed generator, disabled by default.                  -->
+    <!--  Feeds are used to keep users informed about site updates.  -->
+    <!--  It's required to add corresponding <news> sections         -->
+    <!--  to particular album index files.                           -->
+    <filename>atomfeed.xml</filename>
+    <title>CGG Sample gallery site news</title>
+    <!--  It's crucial to set URL of the site. Enter root URL of the gallery.  -->
+    <base_url>http://www.example.com/</base_url>
+  </feed>
+
   <footer><![CDATA[
     So this is footer, suitable place for copyright, W3C validation links and advertisement! | 
     Generated with <a href="http://cgg.bzatek.net/" title="Cataract Gallery Generator">Cataract Gallery Generator</a>. |
diff --git a/sample/src/subdir/Tatry/index.xml b/sample/src/subdir/Tatry/index.xml
index 0e31ae3..566509e 100644
--- a/sample/src/subdir/Tatry/index.xml
+++ b/sample/src/subdir/Tatry/index.xml
@@ -5,6 +5,9 @@
     <title>Račkova dolina, Bystrá</title>
     <description><![CDATA[sobota 29. září 2007<br/>
     ]]></description>
+    <news timestamp="2010-10-07T18:18:18+02:00" type="text" title="Nested album">
+      This comes from a nested album, multiple levels.
+    </news>
   </general>
   
   <items>
diff --git a/src/Makefile.am b/src/Makefile.am
index 492e863..8c4aa15 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -19,6 +19,8 @@ bin_SCRIPTS =				\
 
 cgg_SOURCES =				\
 	cgg.c				\
+	atom-writer.c			\
+	atom-writer.h			\
 	block-parser.c			\
 	block-parser.h			\
 	gallery-utils.c			\
diff --git a/src/atom-writer.c b/src/atom-writer.c
new file mode 100644
index 0000000..958d700
--- /dev/null
+++ b/src/atom-writer.c
@@ -0,0 +1,307 @@
+/*   Cataract - Static web photo gallery generator
+ *   Copyright (C) 2010 Tomas Bzatek <tbzatek@users.sourceforge.net>
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version 2
+ *   of the License, or any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#define _XOPEN_SOURCE   /*  for strptime()  */
+#define _BSD_SOURCE     /*  for struct tm.tm_gmtoff  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <time.h>
+
+#include <glib.h>
+
+#include <config.h>
+
+#include "setup.h"
+#include "atom-writer.h"
+#include "gallery-utils.h"
+
+
+
+
+TAtomFeed *
+atom_writer_new ()
+{
+  return g_new0 (TAtomFeed, 1);
+}
+
+static time_t
+parse_timestamp (const gchar *timestamp)
+{
+  struct tm t = {0};
+  long saved_tm_gmtoff;
+
+
+  if (timestamp == NULL || strlen (timestamp) == 0) {
+    g_print ("parse_timestamp() error: invalid timestamp NULL\n");
+    return 0;
+  }
+
+  strptime (timestamp, "%FT%T%z", &t);
+  saved_tm_gmtoff = t.tm_gmtoff;
+
+  return mktime (&t) - saved_tm_gmtoff;
+}
+
+static gint
+feed_list_date_sort_func (TAtomFeedItem *item1, TAtomFeedItem *item2)
+{
+  time_t t1, t2;
+
+  t1 = parse_timestamp (item1->date);
+  t2 = parse_timestamp (item2->date);
+
+  return - (t1 - t2);
+}
+
+static gchar *
+atom_create_tag (const gchar *base_url, const gchar *date, const gchar *title, const gchar *path)
+{
+  gchar *s, *s2, *s3;
+
+  /*  http://feedvalidator.org/docs/error/InvalidTAG.html  */
+
+  /*  extract domain name  */
+  s2 = strstr (base_url, "://");
+  if (s2 != NULL) {
+    s2 += 3;
+    s3 = strstr (s2, "/");
+
+    /*  no slash found, treat it as is  */
+    if (s3 == NULL)
+      s3 = g_strdup (s2);
+    else
+      s3 = g_strndup (s2, s3 - s2);
+
+    s = g_strdup_printf ("tag:%s,", s3);
+    g_free (s3);
+  }
+  else {
+    g_print ("atom_create_tag() error: invalid base_url '%s'\n", base_url);
+    s = g_strdup ("tag:unknown.cgg.gallery.com,");
+  }
+
+  /*  copy the date, let's assume correct format  */
+  s3 = g_strndup (date, 10);
+  s2 = g_strdup_printf ("%s%s:x", s, s3 ? s3 : "2010-01-01");
+  g_free (s3);
+  g_free (s);
+  s = s2;
+
+  /*  append hashed title and path  */
+  if (title) {
+    s2 = g_strdup_printf ("%s.%u", s, g_str_hash (title));
+    g_free (s);
+    s = s2;
+  }
+  if (path) {
+    s2 = g_strdup_printf ("%s.%u", s, g_str_hash (path));
+    g_free (s);
+    s = s2;
+  }
+
+  return s;
+}
+
+void
+atom_writer_write_to_file (TAtomFeed *feed, const gchar *filename, TGallerySetup *setup)
+{
+  FILE* f;
+  GSList *list;
+  TAtomFeedItem *item;
+  gchar *s;
+  const gchar *last_updated;
+
+  f = fopen (filename, "w");
+  if (f == NULL) {
+    log_error ("Error writing atom feed: %s\n", strerror (errno));
+    return;
+  }
+
+  /*  sort items by date  */
+  feed->items = g_slist_sort (feed->items, (GCompareFunc) feed_list_date_sort_func);
+
+  /*  find most recent date  */
+  last_updated = NULL;
+  for (list = feed->items; list; list = list->next) {
+    item = list->data;
+    last_updated = item->date;
+    if (last_updated)
+      break;
+  }
+
+  /*  write header  */
+  fprintf (f, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
+  fprintf (f, "<feed xmlns=\"http://www.w3.org/2005/Atom\">\n");
+  fprintf (f, "   <title>%s</title>\n", feed->title);
+  if (last_updated)
+    fprintf (f, "   <updated>%s</updated>\n", last_updated);
+
+  s = atom_create_tag (feed->base_url, last_updated, feed->title, NULL);
+  fprintf (f, "   <id>%s</id>\n", s);
+  g_free (s);
+
+  s = g_build_path ("/", feed->base_url, "/", NULL);
+  fprintf (f, "   <link rel=\"alternate\" type=\"text/html\" href=\"%s\"/>\n", s);
+  g_free (s);
+
+  fprintf (f, "   <link rel=\"self\" type=\"application/atom+xml\" href=\"%s\"/>\n", feed->feed_url);
+  fprintf (f, "   <generator uri=\"%s\" version=\"%s\">%s</generator>\n", APP_HOMEPAGE, VERSION, APP_NAME_FULL);
+
+  if (setup->favicon_file)
+    fprintf (f, "   <icon>%s</icon>\n", setup->favicon_file);
+
+  if (setup->meta_author || setup->meta_author_email) {
+    fprintf (f, "   <author>\n");
+    if (setup->meta_author)
+      fprintf (f, "      <name>%s</name>\n", setup->meta_author);
+    if (setup->meta_author_email)
+      fprintf (f, "      <email>%s</email>\n", setup->meta_author_email);
+    fprintf (f, "   </author>\n");
+  }
+  fprintf (f, "\n");
+
+  /*  write items  */
+  for (list = feed->items; list; list = list->next) {
+    item = list->data;
+    if (item->title == NULL || strlen (item->title) == 0 ||
+        item->date == NULL || strlen (item->date) == 0 ||
+        item->path == NULL || strlen (item->path) == 0)
+      log_error ("Error: missing required fields in feed item data (title = '%s').\n", item->title);
+    else {
+      fprintf (f, "   <entry>\n");
+      fprintf (f, "      <title>%s</title>\n", item->title);
+      s = g_build_path ("/", setup->feed_base_url, item->path, "/", NULL);
+      fprintf (f, "      <link rel=\"alternate\" type=\"text/html\" href=\"%s\"/>\n", s);
+      g_free (s);
+
+      s = atom_create_tag (feed->base_url, item->date, item->title, item->path);
+      fprintf (f, "      <id>%s</id>\n", s);
+      g_free (s);
+
+      fprintf (f, "      <updated>%s</updated>\n", item->date);
+      fprintf (f, "      <summary");
+      if (item->summary_type)
+        fprintf (f, " type=\"%s\"", item->summary_type);
+      fprintf (f, ">\n%s\n      </summary>\n", item->summary);
+      fprintf (f, "   </entry>\n\n");
+    }
+  }
+
+  fprintf (f, "</feed>\n");
+  fclose (f);
+}
+
+static void
+atom_feed_item_free (TAtomFeedItem *item)
+{
+  g_free (item->title);
+  g_free (item->path);
+  g_free (item->date);
+  g_free (item->summary);
+  g_free (item->summary_type);
+}
+
+void
+atom_writer_free (TAtomFeed *feed)
+{
+  if (feed) {
+    g_slist_foreach (feed->items, (GFunc) atom_feed_item_free, NULL);
+    g_slist_free (feed->items);
+    g_free (feed->title);
+    g_free (feed->base_url);
+    g_free (feed->feed_url);
+    g_free (feed);
+  }
+}
+
+void
+atom_writer_set_title (TAtomFeed *feed, const gchar *title)
+{
+  g_free (feed->title);
+  feed->title = g_markup_escape_text (title, -1);
+}
+
+void
+atom_writer_set_base_url (TAtomFeed *feed, const gchar *base_url)
+{
+  g_free (feed->base_url);
+  feed->base_url = g_strdup (base_url);
+}
+
+void
+atom_writer_set_feed_url (TAtomFeed *feed, const gchar *feed_url)
+{
+  g_free (feed->feed_url);
+  feed->feed_url = g_strdup (feed_url);
+}
+
+
+G_LOCK_DEFINE (atom_writer_items);
+
+TAtomFeedItem *
+atom_writer_add_item (TAtomFeed *feed)
+{
+  TAtomFeedItem *item;
+
+  item = g_new0 (TAtomFeedItem, 1);
+
+  G_LOCK (atom_writer_items);
+  feed->items = g_slist_append (feed->items, item);
+  G_UNLOCK (atom_writer_items);
+
+  return item;
+}
+
+
+void
+atom_feed_item_set_title (TAtomFeedItem *item, const gchar *title)
+{
+  g_free (item->title);
+  item->title = g_markup_escape_text (title, -1);
+}
+
+void
+atom_feed_item_set_path (TAtomFeedItem *item, const gchar *path)
+{
+  g_free (item->path);
+  item->path = g_strdup (path);
+}
+
+void
+atom_feed_item_set_date (TAtomFeedItem *item, const gchar *date)
+{
+  g_free (item->date);
+  item->date = g_strdup (date);
+}
+
+void
+atom_feed_item_set_summary (TAtomFeedItem *item, const gchar *summary)
+{
+  g_free (item->summary);
+  item->summary = g_markup_escape_text (summary, -1);
+}
+
+void
+atom_feed_item_set_summary_type (TAtomFeedItem *item, const gchar *summary_type)
+{
+  g_free (item->summary_type);
+  item->summary_type = g_strdup (summary_type);
+}
+
diff --git a/src/atom-writer.h b/src/atom-writer.h
new file mode 100644
index 0000000..cf90001
--- /dev/null
+++ b/src/atom-writer.h
@@ -0,0 +1,70 @@
+/*   Cataract - Static web photo gallery generator
+ *   Copyright (C) 2010 Tomas Bzatek <tbzatek@users.sourceforge.net>
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version 2
+ *   of the License, or any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#ifndef __ATOM_WRITER_H__
+#define __ATOM_WRITER_H__
+
+#include <glib.h>
+#include "setup.h"
+
+/*
+ *  Resources:
+ *     http://tools.ietf.org/html/rfc4287
+ *     http://www.atomenabled.org/developers/syndication/
+ *     http://feedvalidator.org/
+ *     http://diveintomark.org/archives/2004/05/28/howto-atom-id
+ *
+ */
+
+
+typedef struct {
+  gchar *title;
+  gchar *base_url;
+  gchar *feed_url;
+
+  GSList *items;
+} TAtomFeed;
+
+typedef struct {
+  gchar *title;
+  gchar *path;           /*  relative path in the gallery structure  */
+  gchar *date;           /*  format ISO.8601.1988 yyyy-mm-ddThh:mm:ssZ or yyyy-mm-ddThh:mm:ss+hh:mm (timezone)  */
+  gchar *summary;        /*  escaped automatically  */
+  gchar *summary_type;   /*  valid values are "text", "html", "xhtml"  */
+} TAtomFeedItem;
+
+
+/*  Global instances  */
+TAtomFeed *news_feed;
+
+
+TAtomFeed *      atom_writer_new ();
+void             atom_writer_write_to_file (TAtomFeed *feed, const gchar *filename, TGallerySetup *setup);
+void             atom_writer_set_title     (TAtomFeed *feed, const gchar *title);
+void             atom_writer_set_base_url  (TAtomFeed *feed, const gchar *base_url);
+void             atom_writer_set_feed_url  (TAtomFeed *feed, const gchar *feed_url);
+void             atom_writer_free          (TAtomFeed *feed);    /*  will free data of all items  */
+
+TAtomFeedItem *  atom_writer_add_item   (TAtomFeed *feed);
+void             atom_feed_item_set_title        (TAtomFeedItem *item, const gchar *title);
+void             atom_feed_item_set_path         (TAtomFeedItem *item, const gchar *path);
+void             atom_feed_item_set_date         (TAtomFeedItem *item, const gchar *date);
+void             atom_feed_item_set_summary      (TAtomFeedItem *item, const gchar *summary);
+void             atom_feed_item_set_summary_type (TAtomFeedItem *item, const gchar *summary_type);
+
+
+#endif /* __ATOM_WRITER_H__ */
diff --git a/src/cgg.c b/src/cgg.c
index 00cd63d..5ec8652 100644
--- a/src/cgg.c
+++ b/src/cgg.c
@@ -34,6 +34,8 @@
 #include "setup.h"
 #include "job-manager.h"
 #include "stats.h"
+#include "atom-writer.h"
+#include "gallery-utils.h"
 
 
 
@@ -118,6 +120,7 @@ main (int argc, char* argv[])
   TGallerySetup *setup;
   time_t time_start = time (NULL);
   time_t time_stop;
+  gchar *s;
 
   /*
    * this initialize the library and check potential ABI mismatches
@@ -173,12 +176,42 @@ main (int argc, char* argv[])
     printf ("Using setup file \"%s\"\n", setup->setup_xml_path);
   }
 
+  /*  Setup feeds  */
+  news_feed = NULL;
+  if (setup->feed_enabled) {
+    news_feed = atom_writer_new ();
+    atom_writer_set_title (news_feed, setup->feed_title ? setup->feed_title : setup->site_title);
+  }
+
   /*  Start building the gallery tree  */
   setup->verbose = verbose;
   setup->update_mode = update;
   setup->override_nofullsize = fullsize;
   build_tree (setup, source_dir, dst_dir, NULL, -1, jobs);
 
+  /*  Write feeds  */
+  if (news_feed) {
+    if (verbose)
+      printf ("Writing Atom feed:  %s\n", setup->feed_filename);
+    if (setup->feed_base_url == NULL || strlen (setup->feed_base_url) == 0)
+      log_error ("Error: feed base URL not defined!\n");
+    else
+    if (setup->feed_filename == NULL || strlen (setup->feed_filename) == 0)
+      log_error ("Error: feed file name not defined!\n");
+    else {
+      atom_writer_set_base_url (news_feed, setup->feed_base_url);
+      s = g_build_filename (setup->feed_base_url, setup->feed_filename, NULL);
+      atom_writer_set_feed_url (news_feed, s);
+      g_free (s);
+
+      s = g_strdup_printf ("%s/%s", dst_dir, setup->feed_filename);
+      atom_writer_write_to_file (news_feed, s, setup);
+      g_free (s);
+    }
+    atom_writer_free (news_feed);
+  }
+
+  /*  Write stats  */
   if (verbose) {
     time_stop = time (NULL);
     printf ("\nProcessed %d images in %d albums, elapsed time = %dm %ds\n", stats_images, stats_dirs, (int) ((time_stop - time_start) / 60), (int) ((time_stop - time_start) % 60));
@@ -189,7 +222,6 @@ main (int argc, char* argv[])
   }
 
 
-
   MagickWandTerminus();
 
   /*  Cleanup function for the XML library. */
diff --git a/src/generators.c b/src/generators.c
index a28eb8a..f0ba940 100644
--- a/src/generators.c
+++ b/src/generators.c
@@ -399,6 +399,15 @@ write_html_album (TGallerySetup *setup,
   replace_table_add_key (global_replace_table, "CGG_META_TAGS", s1);
   g_free (s1);
 
+  /*  Atom feeds  */
+  if (setup->feed_enabled) {
+    s3 = make_string ("../", level - 1);
+    s1 = g_strdup_printf ("\t<link href=\"%s%s\" type=\"application/atom+xml\" rel=\"alternate\" title=\"%s\" />\n", s3, setup->feed_filename, setup->feed_title);
+    g_free (s3);
+    replace_table_add_key (global_replace_table, "CGG_ATOM_FEED_TAGS", s1);
+    g_free (s1);
+  }
+
 
   /*  Setup block parser  */
   block_parser_register_key (block_parser, "IMG_LIST", "IMG_LIST");
@@ -797,6 +806,15 @@ write_html_image (TGallerySetup *setup,
   replace_table_add_key (replace_table, "CGG_META_TAGS", s1);
   g_free (s1);
 
+  /*  Atom feeds  */
+  if (setup->feed_enabled) {
+    s3 = make_string ("../", level - 1);
+    s1 = g_strdup_printf ("\t<link href=\"%s%s\" type=\"application/atom+xml\" rel=\"alternate\" title=\"%s\" />\n", s3, setup->feed_filename, setup->feed_title);
+    g_free (s3);
+    replace_table_add_key (replace_table, "CGG_ATOM_FEED_TAGS", s1);
+    g_free (s1);
+  }
+
 
   /*  Setup block parser  */
   block_parser_register_key (block_parser, "IMG_FULLSIZE_LINK", "IMG_FULLSIZE_LINK");
diff --git a/src/items.c b/src/items.c
index 730908e..4a6f7ea 100644
--- a/src/items.c
+++ b/src/items.c
@@ -27,8 +27,35 @@
 #include "items.h"
 #include "xml-parser.h"
 #include "gallery-utils.h"
+#include "atom-writer.h"
 
 
+static gchar *
+get_album_path (TAlbum *items)
+{
+  TIndexItem *parent_item;
+  TAlbum *parent;
+  int old_parent_item_index;
+  gchar *path;
+  gchar *s;
+
+  path = NULL;
+  parent = items->parent_index;
+  old_parent_item_index = items->parent_item_index;
+  while (parent) {
+    parent_item = g_ptr_array_index (parent->items, old_parent_item_index);
+    if (! parent_item)
+      break;
+    s = g_strdup_printf ("/%s%s", parent_item->path, path ? path : "");
+    g_free (path);
+    path = s;
+    old_parent_item_index = parent->parent_item_index;
+    parent = parent->parent_index;
+  }
+
+  return path ? path : g_strdup ("/");
+}
+
 
 /*
  *   parse_album_xml: XML parser for gallery index.xml files
@@ -43,16 +70,12 @@ parse_album_xml (const gchar *filename, TAlbum *index)
   gchar *s, *s2;
   gchar *node_name;
   TIndexItem *item;
+  TAtomFeedItem *feed_item;
 
   xml = xml_parser_load (filename);
   if (xml == NULL)
     return FALSE;
 
-  /*  Initialize data struct  */
-  if (index == NULL)
-    index = g_malloc0 (sizeof (TAlbum));
-  memset (index, 0, sizeof (TAlbum));
-
   index->base_dir = g_path_get_dirname (filename);
 
   /*  Retrieve gallery type  */
@@ -81,7 +104,6 @@ parse_album_xml (const gchar *filename, TAlbum *index)
     g_free (s);
   }
 
-
   index->quality = xml_file_get_node_attribute_long (xml, "/gallery/general/images", "quality", -1);
   index->landscape_width = xml_file_get_node_attribute_long (xml, "/gallery/general/images", "landscape_w", 0);
   index->landscape_height = xml_file_get_node_attribute_long (xml, "/gallery/general/images", "landscape_h", 0);
@@ -96,6 +118,38 @@ parse_album_xml (const gchar *filename, TAlbum *index)
   index->nofullsize = xml_file_get_node_present (xml, "/gallery/general/nofullsize");
   index->fullsize = xml_file_get_node_present (xml, "/gallery/general/fullsize");
 
+  /*  News records  */
+  if (news_feed) {
+    count = xml_file_node_get_children_count (xml, "/gallery/general/news");
+    for (i = 0; i < count; i++) {
+      feed_item = atom_writer_add_item (news_feed);
+      s = g_strdup_printf ("/gallery/general/news[%d]", i + 1);
+
+      s2 = xml_file_get_node_attribute (xml, s, "title");
+      atom_feed_item_set_title (feed_item, s2);
+      g_free (s2);
+
+      s2 = xml_file_get_node_attribute (xml, s, "timestamp");
+      atom_feed_item_set_date (feed_item, s2);
+      g_free (s2);
+
+      s2 = xml_file_get_node_attribute (xml, s, "type");
+      atom_feed_item_set_summary_type (feed_item, s2);
+      g_free (s2);
+      g_free (s);
+
+      s = g_strdup_printf ("/gallery/general/news[%d]/text()", i + 1);
+      s2 = xml_file_get_node_value (xml, s);
+      atom_feed_item_set_summary (feed_item, s2);
+      g_free (s2);
+
+      s = get_album_path (index);
+      atom_feed_item_set_path (feed_item, s);
+      g_free (s);
+    }
+
+  }
+
   /*  Section Items  */
   count = xml_file_node_get_children_count (xml, "/gallery/items/*");
   index->items = g_ptr_array_new();
diff --git a/src/job-manager.c b/src/job-manager.c
index ecfe5b6..87b3425 100644
--- a/src/job-manager.c
+++ b/src/job-manager.c
@@ -226,14 +226,14 @@ build_tree (TGallerySetup *setup,
 
   /*  Read the index file and fill items array  */
   items = g_malloc0 (sizeof (TAlbum));
+  items->parent_index = parent_index;
+  items->parent_item_index = parent_item_index;
   if (! parse_album_xml (idx_file, items)) {
     log_error ("error reading index file '%s'\n", idx_file);
     g_free (idx_file);
     free_album_data (items);
     return FALSE;
   }
-  items->parent_index = parent_index;
-  items->parent_item_index = parent_item_index;
 
   /*  Check if update is necessary  */
   dst_album_file = g_strconcat (dst_dir, "/", setup->index_file_name, NULL);
diff --git a/src/setup.c b/src/setup.c
index f394838..521b184 100644
--- a/src/setup.c
+++ b/src/setup.c
@@ -101,9 +101,7 @@ parse_setup_xml (const gchar *filename, TGallerySetup *setup)
     setup->template_files = g_strsplit (s, "\n", -1);
     g_free (s);
   }
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/templates/support_files_use_common_root", "value");
-  setup->support_files_use_common_root = s ? strcasecmp (s, "yes") == 0 : FALSE;  /*  default to FALSE  */
-  g_free (s);
+  setup->support_files_use_common_root = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/templates/support_files_use_common_root", "value", FALSE);
   setup->index_file_name = xml_file_get_node_value (xml, "/gallery_setup/templates/index_file/text()");
   if (setup->index_file_name == NULL || strlen (setup->index_file_name) == 0)
     setup->index_file_name = g_strdup (DEFAULT_INDEX_FILENAME);
@@ -121,7 +119,6 @@ parse_setup_xml (const gchar *filename, TGallerySetup *setup)
   if (setup->thumbnail_name_format == NULL || strlen (setup->thumbnail_name_format) == 0 || strstr (setup->thumbnail_name_format, "%s") == NULL)
     setup->thumbnail_name_format = g_strdup (DEFAULT_THUMBNAIL_NAME_FORMAT);
 
-
   setup->thumbnail_landscape_width = xml_file_get_node_attribute_long (xml, "/gallery_setup/images/thumbnail", "landscape_w", 0);
   setup->thumbnail_landscape_height = xml_file_get_node_attribute_long (xml, "/gallery_setup/images/thumbnail", "landscape_h", 0);
   setup->thumbnail_portrait_width = xml_file_get_node_attribute_long (xml, "/gallery_setup/images/thumbnail", "portrait_w", 0);
@@ -135,39 +132,31 @@ parse_setup_xml (const gchar *filename, TGallerySetup *setup)
   setup->footer = xml_file_get_node_value (xml, "/gallery_setup/footer/text()");
   setup->border_style = xml_file_get_node_attribute (xml, "/gallery_setup/images/border", "style");
   setup->meta_author = xml_file_get_node_value (xml, "/gallery_setup/meta/author/text()");
+  setup->meta_author_email = xml_file_get_node_value (xml, "/gallery_setup/meta/author_email/text()");
   setup->meta_description = xml_file_get_node_value (xml, "/gallery_setup/meta/description/text()");
   setup->meta_keywords = xml_file_get_node_value (xml, "/gallery_setup/meta/keywords/text()");
 
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/images/preload", "value");
-  setup->preload = s ? strcasecmp (s, "yes") == 0 : TRUE;  /*  default to TRUE  */
-  g_free (s);
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/images/use_iptc_exif", "value");
-  setup->use_iptc_exif = s ? strcasecmp (s, "yes") == 0 : FALSE;  /*  default to FALSE  */
-  g_free (s);
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/images/erase_embed_thumbnail", "value");
-  setup->erase_exif_thumbnail = s ? strcasecmp (s, "yes") == 0 : FALSE;  /*  default to FALSE  */
-  g_free (s);
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/meta/use_title_as_meta", "value");
-  setup->use_title_as_meta = s ? strcasecmp (s, "yes") == 0 : TRUE;  /*  default to TRUE  */
-  g_free (s);
+  setup->preload = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/images/preload", "value", TRUE);
+  setup->use_iptc_exif = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/images/use_iptc_exif", "value", FALSE);
+  setup->erase_exif_thumbnail = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/images/erase_embed_thumbnail", "value", FALSE);
+  setup->use_title_as_meta = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/meta/use_title_as_meta", "value", TRUE);
 
   setup->site_title = xml_file_get_node_attribute (xml, "/gallery_setup/meta/site", "title");
   setup->add_copyright = xml_file_get_node_value (xml, "/gallery_setup/meta/add_copyright/text()");
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/navigation/use_inpage_links", "value");
-  setup->use_inpage_links = s ? strcasecmp (s, "yes") == 0 : TRUE;  /*  default to TRUE  */
-  g_free (s);
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/navigation/show_go_up", "value");
-  setup->show_go_up = s ? strcasecmp (s, "yes") == 0 : TRUE;  /*  default to TRUE  */
-  g_free (s);
-  s = xml_file_get_node_attribute (xml, "/gallery_setup/navigation/show_exif_table", "value");
-  setup->show_exif_table = s ? strcasecmp (s, "yes") == 0 : TRUE;  /*  default to TRUE  */
-  g_free (s);
+  setup->use_inpage_links = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/navigation/use_inpage_links", "value", TRUE);
+  setup->show_go_up = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/navigation/show_go_up", "value", TRUE);
+  setup->show_exif_table = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/navigation/show_exif_table", "value", TRUE);
 
   setup->nofullsize = xml_file_get_node_present (xml, "/gallery_setup/images/nofullsize");
 
   setup->favicon_file = xml_file_get_node_value (xml, "/gallery_setup/meta/favicon/text()");
   setup->favicon_type = xml_file_get_node_attribute (xml, "/gallery_setup/meta/favicon", "type");
 
+  setup->feed_enabled = xml_file_get_node_attribute_boolean (xml, "/gallery_setup/feed", "enable", FALSE);
+  setup->feed_filename = xml_file_get_node_value (xml, "/gallery_setup/feed/filename/text()");
+  setup->feed_title = xml_file_get_node_value (xml, "/gallery_setup/feed/title/text()");
+  setup->feed_base_url = xml_file_get_node_value (xml, "/gallery_setup/feed/base_url/text()");
+
   xml_parser_close (xml);
   return TRUE;
 }
@@ -238,6 +227,7 @@ free_setup_data (TGallerySetup *setup)
     g_free (setup->index_file_name);
     g_free (setup->footer);
     g_free (setup->meta_author);
+    g_free (setup->meta_author_email);
     g_free (setup->border_style);
     g_free (setup->site_title);
     g_free (setup->add_copyright);
@@ -247,6 +237,9 @@ free_setup_data (TGallerySetup *setup)
     g_free (setup->img_big_dir);
     g_free (setup->img_orig_dir);
     g_free (setup->thumbnail_name_format);
+    g_free (setup->feed_filename);
+    g_free (setup->feed_title);
+    g_free (setup->feed_base_url);
     g_free (setup);
     setup = NULL;
   }
diff --git a/src/setup.h b/src/setup.h
index d4f275b..8c9927f 100644
--- a/src/setup.h
+++ b/src/setup.h
@@ -55,6 +55,7 @@ typedef struct {
 
   gchar *footer;
   gchar *meta_author;
+  gchar *meta_author_email;
   gchar *meta_description;
   gchar *meta_keywords;
   gboolean use_title_as_meta;
@@ -87,6 +88,11 @@ typedef struct {
 
   gchar *favicon_file;
   gchar *favicon_type;
+
+  gboolean feed_enabled;
+  gchar *feed_filename;
+  gchar *feed_title;
+  gchar *feed_base_url;
 } TGallerySetup;
 
 
diff --git a/src/xml-parser.c b/src/xml-parser.c
index ee40dad..70c7528 100644
--- a/src/xml-parser.c
+++ b/src/xml-parser.c
@@ -210,6 +210,19 @@ xml_file_get_node_attribute_long (TXMLFile *file, const gchar *x_path, const gch
   return i;
 }
 
+gboolean
+xml_file_get_node_attribute_boolean (TXMLFile *file, const gchar *x_path, const gchar *attr, const gboolean _default)
+{
+  gchar *s;
+  gboolean b;
+
+  s = xml_file_get_node_attribute (file, x_path, attr);
+  b = s ? (strcasecmp (s, "yes") == 0 || strcasecmp (s, "true") == 0) : _default;
+  g_free (s);
+  return b;
+}
+
+
 /*
  *   xml_file_get_node_present: existency test of the XPath node
  */
diff --git a/src/xml-parser.h b/src/xml-parser.h
index 53abf08..3d89616 100644
--- a/src/xml-parser.h
+++ b/src/xml-parser.h
@@ -55,6 +55,7 @@ gchar * xml_file_get_node_value (TXMLFile *file, const gchar *x_path);
  */
 gchar * xml_file_get_node_attribute (TXMLFile *file, const gchar *x_path, const gchar *attr);
 long int xml_file_get_node_attribute_long (TXMLFile *file, const gchar *x_path, const gchar *attr, const int _default);
+gboolean xml_file_get_node_attribute_boolean (TXMLFile *file, const gchar *x_path, const gchar *attr, const gboolean _default);
 
 /*
  *   xml_file_get_node_present: existency test of the XPath node
diff --git a/templates/template-album.tmpl b/templates/template-album.tmpl
index 4942fa8..c018057 100644
--- a/templates/template-album.tmpl
+++ b/templates/template-album.tmpl
@@ -5,6 +5,7 @@
 	<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
 	<title>$(PAGE_TITLE)</title>
 <!-- $(CGG_META_TAGS) -->
+<!-- $(CGG_ATOM_FEED_TAGS) -->
 	<link href="$(TEMPLATES_PATH)styles.css" type="text/css" rel="stylesheet" media="screen, print" />
 	<script type="text/javascript" src="$(TEMPLATES_PATH)scripts-general.js"> </script>
 </head>
diff --git a/templates/template-index.tmpl b/templates/template-index.tmpl
index 994c550..b2c7dba 100644
--- a/templates/template-index.tmpl
+++ b/templates/template-index.tmpl
@@ -5,6 +5,7 @@
 	<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
 	<title>$(PAGE_TITLE)</title>
 <!-- $(CGG_META_TAGS) -->
+<!-- $(CGG_ATOM_FEED_TAGS) -->
 	<link href="$(TEMPLATES_PATH)styles.css" type="text/css" rel="stylesheet" media="screen, print" />
 	<script type="text/javascript" src="$(TEMPLATES_PATH)scripts-general.js"> </script>
 </head>
diff --git a/templates/template-view_photo.tmpl b/templates/template-view_photo.tmpl
index 917ac0f..7fe58e2 100644
--- a/templates/template-view_photo.tmpl
+++ b/templates/template-view_photo.tmpl
@@ -5,6 +5,7 @@
 	<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
 	<title>$(PAGE_TITLE)</title>
 <!-- $(CGG_META_TAGS) -->
+<!-- $(CGG_ATOM_FEED_TAGS) -->
 	<link href="$(TEMPLATES_PATH)styles.css" type="text/css" rel="stylesheet" media="screen, print" />
 	<script type="text/javascript" src="$(TEMPLATES_PATH)scripts-general.js"> </script>
 </head>
-- 
cgit v1.2.3