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#+TITLE: clog
Supposedly simplistic blogging in Common Lisp.
I'm working on it...

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;; clog -- Supposedly simplistic blogging in Common Lisp
;; Copyright (C) 2013 Tom Willemse
;; clog is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; clog 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 Affero General Public License for more details.
;; You should have received a copy of the GNU Affero General Public License
;; along with clog. If not, see <http://www.gnu.org/licenses/>.
(asdf:defsystem :clog
:serial t
:description "A blog in Common Lisp"
:author "Tom Willemse"
:license "AGPLv3"
:depends-on (:ningle :postmodern :simple-date :closure-template
:clack-middleware-postmodern)
:defsystem-depends-on (:closure-template)
:components ((:closure-template "templates/clog")
(:file "packages")
(:file "tables")
(:file "config")
(:file "clog")))

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;; clog -- Supposedly simplistic blogging in Common Lisp
;; Copyright (C) 2013 Tom Willemse
;; clog is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; clog 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 Affero General Public License for more details.
;; You should have received a copy of the GNU Affero General Public License
;; along with clog. If not, see <http://www.gnu.org/licenses/>.
(in-package :clog)
(defclass clog (<app>) ())
(defvar *app* (make-instance 'clog))
(defmethod call ((this clog) env)
(prepare-tables)
(call-next-method))
(defun make-tpl-parameters (&rest args)
(append (list :prefix (script-name *request*)) args))
(defun post-tags (post)
(query (:select 'tag.* :from 'tag
:inner-join 'post-tag
:on (:and (:= 'id 'tag_id)
(:= 'post_id (post-id post))))
(:dao tag)))
(defun post-comments (post)
(query (:order-by
(:select :* :from 'post
:where (:and (:= 'type "comment")
(:= 'parent (post-id post))))
'timestamp)
(:dao post)))
(defun tag-posts (tag)
(query (:order-by
(:select 'post.* :from 'post
:inner-join 'post-tag
:on (:and (:= 'id 'post_id)
(:= 'tag_id (tag-id tag))))
'timestamp)
(:dao post)))
(defun page-posts (page)
(query (:order-by
(:select :* :from 'post
:where (:and (:= 'parent (post-id page))
(:= 'type "blog")))
'timestamp)
(:dao post)))
(defun comment-comments (comment)
(query (:order-by
(:select :* :from 'post
:where (:and (:= 'parent (post-id comment))
(:= 'type "comment")))
'timestamp)
(:dao post)))
(defun timestamp->string (ts)
(multiple-value-bind (year month day hour minute second)
(decode-timestamp ts)
(format nil "~2,'0d-~2,'0d-~d ~2,'0d:~2,'0d:~2,'0d"
day month year hour minute second)))
(defun post-params (post)
(list :title (post-title post)
:timestamp (timestamp->string (post-time post))
:slug (post-slug post)))
(defun render-post (post &key (lvl 2) (content-render 'post-content))
(clog-templates:post
(append (post-params post)
(make-tpl-parameters
:content (funcall content-render post)
:tags (mapcar #'render-tag (post-tags post))
:lvl lvl
:type "posts"
:author (post-author-name post)))))
(defun render-tag (tag)
(clog-templates:tag
(make-tpl-parameters :name (tag-name tag) :slug (tag-slug tag))))
(defun render-page (page)
(clog-templates:post
(append (post-params page)
(make-tpl-parameters
:content (apply 'concatenate 'string (post-content page)
(mapcar #'(lambda (post)
(render-post post :lvl 3))
(page-posts page)))
:tags (mapcar #'render-tag (post-tags page))
:lvl 2
:type "pages"))))
(defun render-comment (comment)
(clog-templates:comment
(make-tpl-parameters
:comment (post-content comment)
:timestamp (timestamp->string (post-time comment))
:author (post-author-name comment)
:md5 (post-author-md5 comment)
:comments (mapcar #'render-comment
(comment-comments comment)))))
(defun get-posts (&key (type "blog") (parent-id :NULL))
(query (:order-by
(:select :* :from 'post
:where (:and (:= 'type type)
(:or (:and (:is-null parent-id)
(:is-null 'parent))
(:= 'parent parent-id))))
(:desc 'timestamp))
(:dao post)))
(defun get-post (slug &key (type "blog"))
(query (:select :* :from 'post
:where (:and (:= 'slug slug)
(:= 'type type)))
(:dao post :single)))
(defun get-tag (slug)
(query (:select :* :from 'tag :where (:= 'slug slug))
(:dao tag :single)))
(defun post-list-page ()
(clog-templates:main
(make-tpl-parameters
:content (clog-templates:list
(make-tpl-parameters
:posts (mapcar #'render-post (get-posts)))))))
(defun post-page (slug)
(let ((post (get-post slug)))
(list (if post 200 404)
'(:content-type "text/html")
(clog-templates:main
(make-tpl-parameters
:content (if post
(clog-templates:single
(make-tpl-parameters
:post (render-post post)
:comments (mapcar #'render-comment
(post-comments post))))
"No such post"))))))
(defun tag-page (slug)
(let ((tag (get-tag slug)))
(list (if tag 200 404)
'(:content-type "text/html")
(clog-templates:main
(make-tpl-parameters
:content
(if tag
(clog-templates:list
(make-tpl-parameters
:posts (mapcar #'render-post (tag-posts tag))))
"No such tag"))))))
(defun page-page (slug)
(let ((page (get-post slug :type "page")))
(list (if page 200 404)
'(:content-type "text/html")
(clog-templates:main
(make-tpl-parameters
:content
(if page
(clog-templates:single
(make-tpl-parameters
:post (render-page page)
:comments (mapcar #'render-comment
(post-comments page))))
"No such page"))))))
(setf (route *app* "/") (lambda (params) (post-list-page)))
(setf (route *app* "/posts/:slug")
(lambda (params) (post-page (getf params :slug))))
(setf (route *app* "/tags/:slug")
(lambda (params) (tag-page (getf params :slug))))
(setf (route *app* "/pages/:slug")
(lambda (params) (page-page (getf params :slug))))
(setf (route *app* "/login" :method :POST)
#'(lambda (params)
(if (authorize (getf params :|username|)
(getf params :|password|))
"Authorized!"
"Failed...Try again.")))
(setf (route *app* "/hello/:name")
#'(lambda (params)
(format nil "Hello, ~A" (getf params :name))))
(setf (route *app* "/say/*/to/*")
#'(lambda (params)
;; matches /say/hello/to/world
(format nil "~S" (getf params :splat))))
(setf (route *app* "/download/*.*")
#'(lambda (params)
;; matches /download/path/to/file.xml
(format nil "~S" (getf params :splat))))
(defun get-app ()
(clack.builder:builder
(<clack-middleware-static> :path "/static/" :root "static/")
(<clack-middleware-postmodern>
:database *dbname* :user *dbuser* :password *dbpass* :host *dbhost*)
clack.middleware.session:<clack-middleware-session>
*app*))
;; (defparameter *urlmap* (make-instance '<clack-app-urlmap>))
;; (mount *urlmap* "/clog/" (get-app))
;; (defvar *handler*
;; (clackup *urlmap* :port 5004))

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;; clog -- Supposedly simplistic blogging in Common Lisp
;; Copyright (C) 2013 Tom Willemse
;; clog is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; clog 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 Affero General Public License for more details.
;; You should have received a copy of the GNU Affero General Public License
;; along with clog. If not, see <http://www.gnu.org/licenses/>.
(in-package :clog)
(defparameter *dbname* "clog") ; Database name
(defparameter *dbuser* ) ; Database username
(defparameter *dbpass* ) ; Database password
(defparameter *dbhost* "localhost") ; Database host

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;; clog -- Supposedly simplistic blogging in Common Lisp
;; Copyright (C) 2013 Tom Willemse
;; clog is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; clog 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 Affero General Public License for more details.
;; You should have received a copy of the GNU Affero General Public License
;; along with clog. If not, see <http://www.gnu.org/licenses/>.
(defpackage :clog
(:use :cl :postmodern :simple-date :ningle :clack
:clack.middleware.postmodern :clack.middleware.static
:clack.request :clack.app.urlmap))

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/* clog --- Supposedly simplistic blogging in Common Lisp
Copyright (C) 2013 Tom Willemse
clog is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clog 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with clog. If not, see <http://www.gnu.org/licenses/>. */
body {
font-family: sans-serif;
line-height: 145%;
font-size: 16px;
}
pre {
line-height: 120%;
font-size: 15px;
}
body > footer {
font-size: 12px;
margin: 0 auto;
width: 700px;
margin-top: 20px;
}
.comment footer {
font-size: 12px;
}
.comment header img {
float: left;
padding-right: 10px;
}
.comment .content {
white-space: pre-line;
}
.container {
margin: 0 auto;
width: 700px;
}
.post footer {
font-size: 12px;
}
.post .title {
text-align: left;
margin-bottom: 2px;
}
.subcomments {
padding-left: 20px;
}
.title {
text-align: center;
}

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;; clog -- Supposedly simplistic blogging in Common Lisp
;; Copyright (C) 2013 Tom Willemse
;; clog is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; clog 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 Affero General Public License for more details.
;; You should have received a copy of the GNU Affero General Public License
;; along with clog. If not, see <http://www.gnu.org/licenses/>.
(in-package :clog)
(defclass tag ()
((id :col-type serial :reader tag-id)
(name :col-type string :reader tag-name)
(slug :col-type (varchar 255) :reader tag-slug))
(:metaclass dao-class)
(:keys id))
(defclass post ()
((id :col-type serial :reader post-id)
(timestamp :col-type timestamp :reader post-time)
(type :col-type (varchar 10) :reader post-type)
(title :col-type (varchar 500) :reader post-title)
(author-email :col-type (varchar 255) :reader post-author-email)
(author-name :col-type (varchar 255) :reader post-author-name)
(author-md5 :col-type (varchar 255) :reader post-author-md5)
(slug :col-type (or db-null (varchar 255)) :reader post-slug)
(content :col-type string :reader post-content)
(parent :col-type (or db-null integer) :reader post-parent))
(:metaclass dao-class)
(:keys id))
(deftable tag
(!dao-def)
(!unique :name)
(!unique :slug))
(deftable post
(!dao-def)
(!foreign 'post 'parent 'id)
(!unique '(type slug)))
(deftable post-tag
(:create-table
post-tag ((post-id :type :integer)
(tag-id :type :integer)))
(!foreign 'post 'post-id 'id)
(!foreign 'tag 'tag-id 'id)
(!unique '(post-id tag-id)))
(defun prepare-tables ()
(map nil (lambda (tbl)
(unless (table-exists-p tbl)
(create-table tbl)))
'(post tag post-tag)))

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/* -*- mode: closure-template-html; -*- */
/* clog --- Supposedly simplistic blogging in Common Lisp
Copyright (C) 2013 Tom Willemse
clog is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clog 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with clog. If not, see <http://www.gnu.org/licenses/>. */
{namespace clog-templates}
{template main}
<!DOCTYPE html>
<html>
<head>
<link href="{$prefix}static/css/clog.css" rel="stylesheet"
type="text/css" />
</head>
<body>
<div class="container">
<h1 class="title">ryu/blog</h1>
{$content|noAutoescape}
</div>
<footer>
This blog is powered by clog. Clog is available under
the <a href="https://www.gnu.org/licenses/agpl-3.0.html">GNU
Affero General Public License</a>. You can download its source
code <a href="http://code.ryuslash.org/cgit.cgi/clog/">here</a>.
</footer>
</body>
</html>
{/template}
{template list}
{foreach $post in $posts}
{$post|noAutoescape}
{/foreach}
{/template}
{template single}
{$post|noAutoescape}
<h3>Comments</h3>
{foreach $comment in $comments}
{$comment|noAutoescape}
{/foreach}
{/template}
{template post}
<article class="post">
<h{$lvl} class="title">
<a href="{$prefix}{$type}/{$slug}">{$title}</a>
</h{$lvl}>
<div class="content">{$content|noAutoescape}</div>
<footer>
Posted on {$timestamp} in
{foreach $tag in $tags}
{$tag|noAutoescape}
{if not isLast($tag)} |&nbsp;{/if}
{/foreach}
by {$author}.
</footer>
</article>
{/template}
{template tag}
<a href="{$prefix}tags/{$slug}">{$name}</a>
{/template}
{template comment}
<article class="comment">
<header>
<img src="https://secure.gravatar.com/avatar/{$md5}?s=24" />
<h4>{$author} said:</h4>
</header>
<div class="content">
{$comment}
</div>
<footer>
Posted on {$timestamp}
</footer>
</article>
<div class="subcomments">
{foreach $comment in $comments}
{$comment|noAutoescape}
{/foreach}
</div>
{/template}