Add a “canonical” link to the index page.

Ignore-this: 73714c5d314f5faedadd1063b4946d4d

darcs-hash:a725dccc3ce111876d96a5cb9ef84fff3aa19e1c

2 files changed, 11 insertions, 7 deletions

diff --git a/journal.lisp b/journal.lisp
index a78e7a0..2669060 100755
--- a/journal.lisp
+++ b/journal.lisp
@@ -411,7 +411,7 @@
           (<:as-is "Ver&ouml;ffentlichen"))))))))
 
 
-(defun call-with-web-journal (page-title thunk &key post-id)
+(defun call-with-web-journal (page-title thunk &key canonical-uri)
   ;; TODO: Check how to make Squid not wait for the CGI script's
   ;;       termination, which makes generating a Last-Modified header
   ;;       feel slower to the end user rather than faster.
@@ -452,8 +452,8 @@
     (<:link :rel "stylesheet" :type "text/css" :href (link-to :css))
     (<:link :rel "openid.server" :href "https://meinguter.name/index.php/serve")
     (<:link :rel "openid.delegate" :href "https://matthias.benkard.meinguter.name")
-    (when post-id
-      (<:link :rel "canonical" :type "text/html" :href (link-to :view :post-id post-id :absolute t))))
+    (when canonical-uri
+      (<:link :rel "canonical" :type "text/html" :href canonical-uri)))
    (<:body
     (<:div :id :main-title-box
      (<:h1 :id :main-title
@@ -501,7 +501,11 @@
                                             :save-entry))
                          (title-of (find-entry *post-number*))
                          nil)
-                     :post-id (when (eq *action* :view) *post-number*))
+                     :canonical-uri (case *action*
+                                      (:view
+                                       (link-to :view :post-id post-id :absolute t))
+                                      ((:index nil)
+                                       (link-to :index :absolute t))))
     (case *action*
       ((:index nil)
        (let ((entries (select 'journal-entry
@@ -739,7 +743,7 @@
        (with-open-file (*standard-output* file-path :direction :output :if-exists :supersede)
          (with-yaclml-stream *standard-output*
            (let ((*mode* :file))
-             (with-web-journal (title :post-id id)
+             (with-web-journal (title :canonical-uri (link-to :view :post-id post-id :absolute t))
                (show-journal-entry entry :comments-p t))))))))
 
 (defun update-atom-feed ()
diff --git a/macros.lisp b/macros.lisp
index 0b516f4..4d0124a 100644
--- a/macros.lisp
+++ b/macros.lisp
@@ -41,8 +41,8 @@
   (emit-close-tag "html"))
 
 
-(defmacro with-web-journal ((page-title &key post-id) &body body)
-  `(call-with-web-journal ,page-title #'(lambda () ,@body) :post-id ,post-id))
+(defmacro with-web-journal ((page-title &key canonical-uri) &body body)
+  `(call-with-web-journal ,page-title #'(lambda () ,@body) :canonical-uri ,canonical-uri))
 
 
 (defmacro with-result-cache ((cache-id &key (younger-than nil younger-than-p))