(in-package #:mulkcms) (defvar *requested-characteristics*) (defvar *propagated-params*) (defvar *use-ssl-p*) (defvar *base-uri*) (defvar *user-agent*) (defvar *real-remote-addr*) (defvar *request-method*) (defvar *headers*) (defvar *user-name*) (defvar *password*) (defvar *authorization-page-handler*) (unless (member "html-human-date" *template-formatters* :key #'car :test #'equal) (setq *template-formatters* (list* (cons "html-human-date" 'format-human-date) (cons "html-short-human-date" 'format-short-human-date) (cons "html-iso-date" 'format-iso-date) (cons "article-html" 'format-article) (cons "comment-html" 'format-comment) *template-formatters*))) (defparameter *month-abbreviations* '("Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec")) (defun make-uuid () ;; Taken from Mulkblog. "Generate a version 4 UUID according to RFC 4122, section 4.4." (let ((*random-state* (make-random-state t))) (format nil "~(~8,'0x-~4,'0x-~4,'0x-~2,'0x~2,'0x-~12,'0x~)" (random #x100000000) ;time_low (random #x10000) ;time_mid (logior #b0100000000000000 (logand #b0000111111111111 (random #x10000))) ;time_hi_and_version (logior #b10000000 (logand #b00111111 (random #x100))) ;clock_seq_hi_and_reserved (random #x100) ;clock_seq_low (random #x1000000000000)))) (defmacro dynamic-lambda ((&rest dynvars) lambda-list &body body) (let ((lexvars (mapcar (lambda (x) (declare (ignore x)) (gensym)) dynvars))) `(let ,(mapcar #'list lexvars dynvars) (lambda ,lambda-list (let ,(mapcar #'list dynvars lexvars) ,@body))))) (defun hashcash-hash-validp (text) (let* ((stripped-text (ppcre:regex-replace-all "\\s+" text "")) (digest (ironclad:digest-sequence 'ironclad:sha256 (flexi-streams:string-to-octets stripped-text :external-format :utf8)))) (every #'zerop (subseq digest 0 2)))) (defun akismet-login () ;; Taken from Mulkblog. (drakma:http-request "http://rest.akismet.com/1.1/verify-key" :protocol :http/1.0 :method :post :user-agent "MulkCMS/0.1.0" :parameters `(("key" . ,*wordpress-key*) ("blog" . ,*base-uri*)))) (defun akismet-check-comment (body author-name author-website user-agent submitter-ip) ;; Taken from Mulkblog. (drakma:http-request (format nil "http://~A.rest.akismet.com/1.1/comment-check" *wordpress-key*) :protocol :http/1.0 :method :post :user-agent "Mulk Journal/0.0.1" :parameters `(("blog" . ,*base-uri*) ("user_ip" . ,submitter-ip) ("user_agent" . ,user-agent) ("comment_type" . "comment") ("comment_author" . ,author-name) ("comment_author_url" . ,author-website) ("comment_content" . ,body)))) (defun use-akismet-p () (and (boundp '*wordpress-key*) *wordpress-key*)) (defun spamp/akismet (&rest comment-data) ;; Taken from Mulkblog. (cond ((use-akismet-p) (ignore-errors (akismet-login) (string= "true" (apply #'akismet-check-comment comment-data)))) (*drop-unfiltered* t) (t nil))) (defun parse-http-date (date-string) (or (when-let (groups ;; Match rfc1123-date (the whitespace stuff), ;; rfc850-date (the hyphen stuff) (nth-value 1 (ppcre:scan-to-strings "\\w+, (\\d+)[- ](\\w+)[- ](\\d+) (\\d+):(\\d+):(\\d+) GMT" date-string))) (simple-date:encode-timestamp (let ((yr (parse-integer (elt groups 2)))) ;; Well. For the two-digit year version, I'm just going to ;; assume a year >= 2000. If some clown client software ;; thinks it needs to ask my server whether the site's ;; content has changed since 1978 and does so using a ;; two-digit year code, it deserves all the problems that ;; this may cause it. (if (>= yr 100) yr (+ 2000 yr))) (1+ (position (elt groups 1) *month-abbreviations* :test #'equal)) (parse-integer (elt groups 0)) (parse-integer (elt groups 3)) (parse-integer (elt groups 4)) (parse-integer (elt groups 5)))) (when-let (groups ;; Match asctime-date. (nth-value 1 (ppcre:scan-to-strings "\\w+ (\\w+)\\s+(\\d+) (\\d+):(\\d+):(\\d+) (\\d+)" date-string))) (simple-date:encode-timestamp (parse-integer (elt groups 5)) (1+ (position (elt groups 1) *month-abbreviations* :test #'equal)) (parse-integer (elt groups 0)) (parse-integer (elt groups 2)) (parse-integer (elt groups 3)) (parse-integer (elt groups 4)))))) (defun call-with-cache (path last-update content-type characteristics full-p thunk) (when (eq *request-method* :post) (return-from call-with-cache (let ((result (funcall thunk))) (typecase result (cons (append (list :content-type content-type) result)) (t (list :content-type content-type :body result)))))) (when-let (date-string (cdr (assoc :if-modified-since *headers*))) (when-let (if-modified-since (parse-http-date date-string)) ;; We need to subtract 1 second, since LAST-UPDATE will probably ;; have a non-zero millisecond part, which will make the ;; comparison fail in the very common case that the ;; If-Modified-Since time is exactly what we previously sent as ;; the Last-Modified header (which didn't include milliseconds). (when (simple-date:time<= (simple-date:time-subtract last-update (simple-date:encode-interval :second 1)) if-modified-since) (return-from call-with-cache (list :return-code 304)) ;;304 Not Modified ))) (let* ((chars characteristics) (charstring (format nil "~A; ssl=~A; full=~A" (prin1-to-string chars) *use-ssl-p* full-p)) (charbytes (flexi-streams:string-to-octets charstring :external-format :utf-8)) (charhash (ironclad:digest-sequence 'ironclad:crc32 charbytes)) (charhashnum (- #x80000000 (logior (ash (elt charhash 0) 24) (ash (elt charhash 1) 16) (ash (elt charhash 2) 8) (ash (elt charhash 3) 0)))) (cached-data (query "SELECT content, date FROM cached_pages WHERE characteristic_hash = $1 AND alias = $2" charhashnum path :row))) (list :headers `((:last-modified . ,(local-time:format-timestring nil (local-time:universal-to-timestamp (simple-date:timestamp-to-universal-time last-update)) :format local-time:+rfc-1123-format+))) :content-type content-type :body (if (and cached-data (simple-date:time< last-update (second cached-data))) (first cached-data) (let ((generated-content (funcall thunk))) (query "DELETE FROM cached_pages WHERE characteristic_hash = $1 AND alias = $2" charhashnum path :none) (query "INSERT INTO cached_pages(characteristic_hash, alias, content) VALUES ($1, $2, $3)" charhashnum path generated-content :none) generated-content))))) (defmacro with-cache ((path last-update &optional content-type characteristics full-p) &body body) `(call-with-cache ,path ,last-update ,content-type ,characteristics ,full-p (lambda () ,@body))) (defun find-canonical-article-alias (article) (query "SELECT alias FROM article_aliases WHERE article = $1 LIMIT 1" article :single)) (defun queryize-alist (alist) (format nil "~{~A~^&~}" (mapcar (lambda (x) (destructuring-bind (name . value) x (format nil "~A=~A" (json-template::escape-for-uri name) (json-template::escape-for-uri value)))) alist))) (defun uri-with-query (string alist) (if alist (format nil "~A~A~A" string (if (position #\? string) #\& #\?) (queryize-alist alist)) string)) (defun link-to (action &key comment-id article-id revision-id (absolute nil)) ;; Taken from Mulkblog. (symbol-macrolet ((article-base (find-canonical-article-alias article-id))) (multiple-value-call #'(lambda (&rest args) (let ((path (apply #'format nil args))) (if absolute (uri-with-query (with-output-to-string (strout) (puri:render-uri (puri:merge-uris path *base-uri*) strout)) *propagated-params*) path))) (ecase action (:index "") (:journal-index "/journal") (:full-journal-index "/journal?full") (:view-atom-feed (values "/feed")) (:view (cond (comment-id (values "/~A#comment-~D" article-base comment-id)) (article-id (values "/~A" article-base)) (t "/"))) (:view-comments (values "/~A#comments" article-base)) ((:edit :preview) (cond (revision-id (values "/~A?edit&revision=~D" article-base revision-id)) (t (values "/~A?edit" article-base)))) (:post-comment (values "/~A" article-base)) (:trackback (values "/~A?trackback" article-base)) (:view-atom-entry (values "/~A?atom" article-base)) (:save (values "/~A?save" article-base)) (:moderation-page "/moderate") (:css "/journal.css") (:prettify.css "/prettify/prettify.css") (:prettify.js "/prettify/prettify.js") (:prettify-lisp.js "/prettify/lang-lisp.js") (:prettify-rust.js "/prettify/lang-rust.js") (:prettify-hs.js "/prettify/lang-hs.js") (:pingback "/rpc"))))) (defun call-with-db (thunk) (call-with-connection (list *database-name* *database-user* *database-password* *database-host* :pooled-p t :use-ssl :no) thunk)) (defmacro with-db (&body body) `(call-with-db (lambda () ,@body))) (defun invalidate-cache () (with-db (query "DELETE FROM cached_pages"))) (defun find-template (template-name) (first (directory (make-pathname :name template-name :type :wild :directory *templates*)))) (defun format-short-human-date (date) (multiple-value-bind (year month day hour minute second millisecond) (decode-timestamp date) (declare (ignore second millisecond)) (format nil "~4,'0D-~2,'0D-~2,'0D ~2,'0D:~2,'0D" year month day hour minute))) (defun format-human-date (date) ;; FIXME (multiple-value-bind (year month day hour minute second millisecond) (decode-timestamp date) (declare (ignore second millisecond)) (format nil "~4,'0D-~2,'0D-~2,'0D ~2,'0D:~2,'0D" year month day hour minute))) (defun format-iso-date (date) (multiple-value-bind (year month day hour minute second millisecond) (decode-timestamp date) (declare (ignore millisecond)) (format nil "~4,'0D-~2,'0D-~2,'0DT~2,'0D:~2,'0D:~2,'0DZ" year month day hour minute second))) (defun template (template-name) (parse-template-string (read-file-into-string (find-template template-name) :external-format :utf-8))) (defun format-article (article-params) (let ((article-template (template "article"))) (expand-template article-template article-params))) (defun format-comment (comment-params) (let ((comment-template (template "comment"))) (expand-template comment-template comment-params))) (defun paramify-article-data (revision-data &optional (comments nil commentary-p)) (destructuring-bind (rid article date title content author format status global-id &optional publishing-date comment-num &rest args) revision-data (declare (ignore args format author)) (list :publishing-date publishing-date :revision rid :last-updated-date date :title (and (not (equal "" title)) title) :body content :article-id article :global-id global-id :status status :link (link-to :view :article-id article :absolute t) :commentary (if commentary-p (list :comments comments) nil) :comment-submission (when commentary-p (list :fields (list (list :field-id "name" :field-label "Name") (list :field-id "website" :field-label "Website") (list :field-id "email" :field-label "E-Mail")) :require-js (and (not (use-akismet-p)) *drop-unfiltered*) :body-label "Message" :submit-button-label "Submit" :title "Submit a comment" :notes (format nil "

Note: ~A Comment format is plain text. Use blank lines to separate paragraphs.

" (cond ((use-akismet-p) "This website uses Akismet for spam detection. E-mail addresses are never disclosed to anyone (including Akismet) other than the site owner.") (*drop-unfiltered* "This website uses a JavaScript-based spam prevention system. Please enable JavaScript in your browser to post comments.") (t ""))) :action (link-to :post-comment :article-id article :absolute t))) :edit-link (link-to :edit :article-id article) :edit-button-label "Edit" :comments-label (case comment-num (0 "no comments") (1 "1 comment") (otherwise (format nil "~D comments" comment-num))) :comments-link (link-to :view-comments :article-id article :absolute t) :comments-heading "Comments"))) (defun format-comment-content (text) ;; Taken from Mulkblog. (with-html-output-to-string (out) (loop for last-position = 0 then (cadr matches) for matches = (ppcre:all-matches "(\\n|\\r|\\r\\n)(\\n|\\r|\\r\\n)+" text) then (cddr matches) while (not (endp matches)) do (htm (:p (esc (subseq text last-position (car matches))))) finally (htm (:p (esc (subseq text last-position))))))) #-portable-mulkcms (defun make-characteristic-lists (characteristics &aux (first1-p t) (first2-p t)) (with-output-to-string (out) (format out "(ARRAY[") (dolist (characteristic-list characteristics) (if first1-p (setq first1-p nil) (format out ", ")) (format out "ROW(ARRAY[") (dolist (ch characteristic-list) (if first2-p (setq first2-p nil) (format out ", ")) (format out "ROW(~A, ~A)::characteristic" (sql-escape (car ch)) (sql-escape (cdr ch)))) (setq first2-p t) (format out "])")) (format out "]::characteristic_list[])"))) #-portable-mulkcms (defun find-article-revisions (article characteristics) (query (format nil "SELECT article_revisions_for_characteristics($1, ~A)" (make-characteristic-lists characteristics)) article :column)) #-portable-mulkcms (defun find-all-revisions (characteristics &optional constraints) (query (format nil "SELECT (most_recent_revision(r)).*, d.publishing_date, c.comment_count FROM (SELECT article_revisions_for_characteristics(a.id, ~A) AS revision FROM articles a) AS mr JOIN article_revisions r ON r.id = mr.revision JOIN article_publishing_dates d ON d.article = r.article JOIN article_comment_counts c ON c.article = r.article GROUP BY r.article, d.publishing_date, c.comment_count HAVING ~A ORDER BY d.publishing_date DESC" (make-characteristic-lists characteristics) (or constraints "true")))) #+portable-mulkcms (defun find-article-revisions (article characteristics &optional fixed-characteristics) ;; CHARACTERISTICS --- a proper list. ;; ;; CHARACTERISTICS is a list of lists of (key . value) pairs. Each component list ;; is a precedence list of characteristics that are to be considered fallbacks for ;; each other and that will be tried in order. (let* ((fixed-characteristics-conditions (mapcar (lambda (x) (format nil "AND EXISTS (SELECT 1 FROM article_revision_characteristics WHERE revision = article_revisions.id AND characteristic = ~A AND value = ~A)" (sql-escape (car x)) (sql-escape (cdr x)))) fixed-characteristics)) (query (format nil "SELECT id FROM article_revisions WHERE article = $1~ ~{~&~A~} ORDER BY date DESC" fixed-characteristics-conditions))) (when-let ((revisions (query query article :column))) (if (consp characteristics) (progn (dolist (potential-fixed-characteristic (first characteristics)) (when-let ((more-specific-revisions (find-article-revisions article (rest characteristics) (cons potential-fixed-characteristic fixed-characteristics)))) (return-from find-article-revisions more-specific-revisions))) revisions) revisions)))) ;;;; Alternative definition. ;; ;; #+portable-mulkcms ;; (defun find-article-revisions (article characteristics) ;; ;; CHARACTERISTICS --- a proper list. ;; ;; ;; ;; CHARACTERISTICS is a list of lists of (key . value) pairs. Each component list ;; ;; is a precedence list of characteristics that are to be considered fallbacks for ;; ;; each other and that will be tried in order. ;; (labels ((find-more-specific-revisions (revisions characteristics) ;; (let ((alternatives (first characteristics)) ;; (rest (rest characteristics))) ;; (dolist (alternative alternatives) ;; (when-let ((potential-revisions ;; (remove-if-not (lambda (x) ;; (query "SELECT 1 ;; FROM article_revision_characteristics ;; WHERE revision = $1 ;; AND characteristic = $2 AND value = $3" ;; x ;; (car alternative) ;; (cdr alternative) ;; :column)) ;; revisions))) ;; (if-let ((subresults (find-more-specific-revisions potential-revisions rest))) ;; (return-from find-more-specific-revisions subresults) ;; (return-from find-more-specific-revisions potential-revisions))))))) ;; (let ((revisions (query "SELECT id FROM article_revisions ;; WHERE article = $1 ;; ORDER BY date DESC" ;; article ;; :column))) ;; (if characteristics ;; (find-more-specific-revisions revisions characteristics) ;; revisions)))) (defun paramify-comment (comment-revision-data) (destructuring-bind (crid comment date content author format status article-revision submitter-ip user-agent &rest args) comment-revision-data (declare (ignore args status format submitter-ip user-agent)) (destructuring-bind (author-name author-website) (query "SELECT name, website FROM users WHERE id = $1" author :row) (let ((article (query "SELECT article FROM article_revisions WHERE id = $1" article-revision :single!))) (list :publishing-date date :revision-id crid :comment-id comment :article-revision article-revision :body (format-comment-content content) :author author-name ;;FIXME :author-link (if (and author-website (not (equal author-website ""))) author-website nil) :link (link-to :view :article-id article :comment-id comment :absolute t) :edit-link "" :edit-button-label "Edit" :generic-commenter-name "Someone"))))) (defprepared find-journal-articles "SELECT article FROM journal_entries WHERE journal = 0 ORDER BY index DESC" :column) (defun find-journal-archive-request-handler (path full-p &optional action (characteristics *requested-characteristics*)) (declare (ignore action)) (when (member path '("journal" "journal/" "feed" "feed/" "journal/feed" "journal/feed") :test #'string=) (dynamic-lambda (*propagated-params* *base-uri* *use-ssl-p* *request-method* *headers* *user-name* *password*) () (with-db (with-cache (path (query "SELECT max(date) FROM article_revisions" :single) (if (member path '("feed" "feed/" "journal/feed" "journal/feed") :test #'string=) "application/atom+xml; charset=UTF-8" "text/html; charset=UTF-8") characteristics full-p) (let* (#+portable-mulkcms (articles (find-journal-articles)) #+portable-mulkcms (revisions (remove-if #'null (mapcar (lambda (x) (find-article-params x characteristics)) articles))) #-portable-mulkcms (revisions (mapcar #'paramify-article (find-all-revisions characteristics "EXISTS (SELECT 1 FROM journal_entries je WHERE journal = 0 AND r.article = je.article)"))) (displayed-revisions (if full-p revisions (subseq revisions 0 (min 5 (length revisions))))) (minor-revisions (remove-if (lambda (x) (or (null (getf x :title)) (equal (getf x :title) ""))) revisions))) (cond ((member path '("journal" "journal/") :test #'string=) (let* ((page-skeleton (template "page_skeleton")) (page-template (template "journal_page")) (template-params (list :title *site-name* :root *base-uri* :site-name *site-name* :site-subtitle "" :link (link-to :journal-index :absolute t) :full-archive-link (link-to :full-journal-index :absolute t) :full-archive-label "Full archive (slow!)" :archive-title "Older posts" :archive-table-caption "Posts by date" :archive-title-label "Title" :archive-date-label "Date" :archive-comments-label "Comments")) (head (expand-template page-template (list* :head t :articles displayed-revisions :minor-articles minor-revisions template-params))) (body (expand-template page-template (list* :body t :articles displayed-revisions :minor-articles minor-revisions template-params)))) (expand-template page-skeleton (list :title *site-name* :head head :body body)))) ((member path '("feed" "feed/" "journal/feed" "journal/feed/") :test #'string=) (let* ((authors (query "SELECT DISTINCT name FROM users JOIN article_revisions ON author = users.id" :plists)) (last-updated (query "SELECT max(date) FROM article_revisions WHERE status = 'syndicated'" :single)) (revisions-with-global-ids (mapcar (lambda (x) (let ((global-id ;; FIXME: May want to specify a ;; stopping condition in the ;; recursive query. (query "WITH RECURSIVE q(rid, rglobal_id) AS ( SELECT id, global_id FROM article_revisions WHERE id = $1 UNION SELECT id, global_id FROM q JOIN article_revision_parenthood ON rid = child JOIN article_revisions ON parent = id ) SELECT rglobal_id FROM q WHERE rglobal_id IS NOT NULL" (getf x :revision) :single))) ;; NOTE: This shadows the existing ;; :GLOBAL-ID key in X. (list* :global-id global-id x))) revisions)) (template-params (list :title *site-name* :last-updated-date last-updated :base-uri *base-uri* :subtitle "" :global-id *feed-global-id* :authors authors :feed-uri (link-to :view-atom-feed :absolute t) :articles revisions-with-global-ids))) (expand-template (template "article_feed") template-params)))))))))) (defun paramify-article (revision-data &optional commentary-p comments) (let* () (cond ((null revision-data) nil) (commentary-p (paramify-article-data revision-data comments)) (t (paramify-article-data revision-data))))) (defun find-article-params (article characteristics &optional commentary-p) (let* ((comment-data (if commentary-p (query "SELECT id FROM comments WHERE article = $1" article :column) (list))) (comment-revision-data (remove-if #'null (mapcar (lambda (cid) (first (query "SELECT * FROM comment_revisions WHERE comment = $1 AND status IN ('approved', 'trusted') ORDER BY date DESC" cid :lists))) comment-data))) (comments (mapcar #'paramify-comment comment-revision-data)) (comment-num (length comments)) ;FIXME (revisions (find-article-revisions article characteristics)) (revision (first revisions)) (revision-data (query "SELECT * FROM article_revisions WHERE id = $1" revision :row)) (publishing-date (query "SELECT min(date) FROM article_revisions WHERE article = $1 AND status IN ('published', 'syndicated')" article :single))) (cond ((null revision-data) nil) (t (paramify-article (append revision-data (list publishing-date comment-num)) commentary-p comments))))) (defun expand-page (page-template title template-params) (let ((page-skeleton (template "page_skeleton")) (head (expand-template page-template (list* :head t template-params))) (body (expand-template page-template (list* :body t template-params)))) (expand-template page-skeleton (list :title title :head head :body body)))) (defmacro with-authorization ((user-id-var &rest options) &body body) `(call-with-authorization (lambda (,user-id-var) ,@body) ,@options)) (defun call-with-authorization (thunk &key require) (with-db (let ((user-id (query (format nil "SELECT id FROM users u JOIN passwords p ON u.id = p.user WHERE p.password = $2 AND u.name = $1 AND ~A" (ecase require ((nil) "true") ((:admin) "u.status = 'admin'") ((:trusted) "u.status IN ('trusted', 'admin')") ((:approved) "u.status IN ('approved', 'trusted', 'admin')"))) *user-name* *password* :single))) (if user-id (funcall thunk user-id) (funcall *authorization-page-handler*))))) (defun parse-row-or-array (string) (let ((output (list))) (with-input-from-string (in string) (read-char in) (loop for char = (read-char in nil nil nil) while (and char (not (member char (list #\} #\))))) do (push (with-output-to-string (out) (if (char= char #\") (loop for c = (read-char in) if (char= c #\\) do (format out "~C" (read-char in)) else if (member c (list #\")) do (if (char= (peek-char nil in) #\") (progn (format out "\"") (read-char in)) (progn (read-char in) (return))) else do (format out "~C" c)) (progn (format out "~C" char) (loop for c = (read-char in) until (member c (list #\) #\, #\})) do (format out "~C" c))))) output))) (nreverse output))) (defun parse-row (string) (assert (and (char= (char string 0) #\() (char= (char string (1- (length string))) #\)))) (parse-row-or-array string)) (defun parse-array (string) (assert (and (char= (char string 0) #\{) (char= (char string (1- (length string))) #\}))) (parse-row-or-array string)) (defun find-comment-moderation-handler (path params &optional action (characteristics *requested-characteristics*)) (declare (ignore characteristics action)) (when (string= path "admin/comments") (dynamic-lambda (*user-name* *password* *propagated-params* *base-uri* *use-ssl-p*) () (with-authorization (user-id :require :admin) (declare (ignore user-id)) (with-db (when-let (status (cond ((assoc "mark-as-spam" params :test #'equal) "spam") ((assoc "reject" params :test #'equal) "rejected") ((assoc "approve" params :test #'equal) "approved") (t nil))) (query "UPDATE comment_revisions SET status = $2 WHERE id = $1" (parse-integer (cdr (assoc "revision-id" params :test #'equal))) status :none)) (let* ((comments (query "SELECT * FROM comment_revisions WHERE status IN ('pending')" :rows)) (comment-data (mapcar #'paramify-comment comments)) (comment-data-with-article-data (mapcar (lambda (comment) (let ((revision (query "SELECT * FROM article_revisions WHERE id = $1" (getf comment :article-revision) :row))) (list* :article (paramify-article revision) comment))) comment-data))) (expand-page (template "comment_moderation_page") "Comments Awaiting Moderation" (list :spam-label "Mark as spam" :reject-label "Reject" :approve-label "Approve" :site-name *site-name* :title "Comments Awaiting Moderation" :comments comment-data-with-article-data)))))))) (defun find-article-summary-handler (path params &optional action (characteristics *requested-characteristics*)) (declare (ignore characteristics action)) (when (string= path "admin/articles") (dynamic-lambda (*user-name* *password* *propagated-params* *base-uri* *use-ssl-p*) () (with-authorization (user-id :require :admin) (with-db (labels ((paramify-revision-row (row article-id) (destructuring-bind (id title date characteristics) row (list :id id :title title :date date :link (link-to :edit :article-id article-id :revision-id id :absolute t) :characteristics (parse-array characteristics)))) (paramify-article-row (row) (destructuring-bind (id revisions aliases) row (let ((revision-data (mapcar (lambda (x) (paramify-revision-row x id)) (mapcar #'parse-row (parse-array revisions))))) (list :id id :aliases (if (eq aliases :null) nil aliases) :revisions revision-data :revision-num (length revision-data)))))) (when (assoc "add-alias" params :test #'equal) (with-transaction () (query "INSERT INTO article_aliases(article, alias) VALUES ($1, $2)" (parse-integer (cdr (assoc "article" params :test #'equal))) (cdr (assoc "alias" params :test #'equal)) :none))) (when (assoc "create-article" params :test #'equal) (with-transaction () (let ((article-id (query "INSERT INTO articles(type) VALUES (1) RETURNING id" :single!))) (query "INSERT INTO article_revisions(article, title, content, author, format, status, global_id) VALUES ($1, '', '', $2, 'html', 'draft', $3)" article-id user-id (format nil "urn:uuid:~A" (make-uuid)))))) (when (assoc "create-journal-entry" params :test #'equal) (with-transaction () (let* ((article-id (query "INSERT INTO articles(type) VALUES (1) RETURNING id" :single!)) (article-revision-id (query "INSERT INTO article_revisions(article, title, content, author, format, status, global_id) VALUES ($1, '', '', $2, 'html', 'draft', $3) RETURNING id" article-id user-id (format nil "urn:uuid:~A" (make-uuid)) :single!)) (journal-index (query "INSERT INTO journal_entries(journal, index, article) SELECT 0, 1+MAX(index), $1 FROM journal_entries WHERE journal = 0 RETURNING index" article-id :single!))) (query "INSERT INTO article_aliases(alias, article) VALUES ('journal/' || ($1 :: TEXT), $2)" journal-index article-id) (query "INSERT INTO article_revision_characteristics(revision, characteristic, value) VALUES ($1, 'language', 'de')" article-revision-id)))) (let* ((articles (query "SELECT a.id, array_agg(DISTINCT ROW(r.id, r.title, r.date, r.characteristics)), array_agg(DISTINCT aa.alias) FROM articles a LEFT OUTER JOIN article_aliases aa ON aa.article = a.id LEFT OUTER JOIN article_branch_tips bt ON bt.article = a.id LEFT OUTER JOIN (SELECT r.id AS id, r.title AS title, r.date AS date, array_agg(DISTINCT ROW(ch.characteristic, ch.value)) AS characteristics FROM article_revisions r LEFT OUTER JOIN article_revision_characteristics ch ON ch.revision = r.id GROUP BY r.id, r.title, r.date) AS r ON bt.revision = r.id LEFT OUTER JOIN article_publishing_dates pd ON pd.article = a.id GROUP BY a.id, pd.publishing_date ORDER BY pd.publishing_date DESC, a.id DESC" :rows)) (article-data (mapcar #'paramify-article-row articles))) (expand-page (template "article_summary_page") "Articles" (list :id-label "Article" :aliases-label "Aliases" :branch-label "Branch" :branch-title-label "Title" :characteristics-label "Characteristics" :date-label "Date" :create-article-button-label "Add Article" :create-journal-entry-button-label "Add Journal Entry" :add-alias-label "+" :articles article-data))))))))) (defun parse-characteristic-string (char-string) (let* ((delimiter (position #\: char-string)) (char (subseq char-string 0 delimiter)) (value (subseq char-string (1+ delimiter)))) (values char value))) (defun find-article-request-handler (path params &optional action (characteristics *requested-characteristics*)) (with-db (when-let ((article (query "SELECT article FROM article_aliases WHERE alias = $1" path :single))) (ecase action (:edit (dynamic-lambda (*user-name* *password* *propagated-params* *base-uri* *use-ssl-p*) () (with-authorization (user-id :require :admin) (with-db (with-transaction () (let* ((revision (if (assoc "save" params :test #'equal) (query "INSERT INTO article_revisions(article, title, content, author, format, status) VALUES ($1, $2, $3, $4, $5, $6) RETURNING *" article (cdr (assoc "title" params :test #'equal)) (cdr (assoc "content" params :test #'equal)) user-id "html" (if (assoc "publish-p" params :test #'equal) "syndicated" "draft") :row) (query "SELECT * FROM article_revisions WHERE id = $1 AND article = $2" (parse-integer (cdr (assoc "revision" params :test #'equal))) article :row))) (article-params (list* (paramify-article revision))) (editor-template (template "edit_page"))) (assert (not (null revision))) (when-let (del-char-command (find-if (lambda (x) (starts-with-subseq "delete-char:" (car x))) params)) (let* ((char-string (subseq (car del-char-command) (length "delete-char:")))) (multiple-value-bind (name value) (parse-characteristic-string char-string) (query "DELETE FROM article_revision_characteristics WHERE revision = $1 AND characteristic = $2 AND value = $3" (first revision) name value :none)))) (when (assoc "add-char" params :test #'equal) (let ((name (cdr (assoc "new-char-name" params :test #'equal))) (value (cdr (assoc "new-char-value" params :test #'equal)))) (query "INSERT INTO article_revision_characteristics( revision, characteristic, value ) VALUES ($1, $2, $3)" (first revision) name value :none))) (when (assoc "save" params :test #'equal) (query "INSERT INTO article_revision_parenthood(parent, child) VALUES ($1, $2)" (parse-integer (cdr (assoc "revision" params :test #'equal))) (first revision) :none) (query "INSERT INTO article_revision_characteristics(revision, characteristic, value) SELECT $2, characteristic, value FROM article_revision_characteristics WHERE revision = $1" (parse-integer (cdr (assoc "revision" params :test #'equal))) (first revision) :none)) (setq characteristics (query "SELECT characteristic, value FROM article_revision_characteristics WHERE revision = $1" (first revision) :plists)) (expand-page editor-template (getf article-params :title) (list :article article-params :characteristics characteristics :title (getf article-params :title) :root *base-uri* :site-name *site-name* :site-subtitle "" :link (link-to :edit :article-id article :absolute t) :save-button-label "Save" :publish-flag-label "Publish" :title-label "Title" :content-label "Content" :characteristics-label "Characteristics")))))))) (:view (dynamic-lambda (*propagated-params* *base-uri* *use-ssl-p* *headers* *real-remote-addr* *user-agent* *request-method* *user-name* *password*) () (with-db (with-cache (path (query "SELECT max(date) FROM article_revisions WHERE article = $1" article :single) "text/html; charset=UTF-8" characteristics) (let* ((page-template-name (query "SELECT page_template FROM articles JOIN article_types ON articles.type = article_types.id WHERE articles.id = $1" article :single!)) (article-params (find-article-params article characteristics t)) (page-template (template page-template-name)) (template-params (list :title (getf article-params :title) :root *base-uri* :site-name *site-name* :site-subtitle "" :link "")) (submission-notice nil)) (when (assoc "post-comment" params :test #'equal) (let* ((name (cdr (assoc "name" params :test #'equal))) (website (cdr (assoc "website" params :test #'equal))) (email (cdr (assoc "email" params :test #'equal))) (body (cdr (assoc "body" params :test #'equal))) (article (cdr (assoc "article" params :test #'equal))) (revision (cdr (assoc "revision" params :test #'equal))) (tkey (cdr (assoc "transaction-key" params :test #'equal))) (salt (cdr (assoc "salt" params :test #'equal))) (spam-p (if tkey (or (null salt) (not (hashcash-hash-validp (format nil "~A:~A:~A" body tkey salt)))) (spamp/akismet body name website *real-remote-addr* *user-agent*)))) (with-transaction () (let ((comment (query "INSERT INTO comments(article, global_id) VALUES ($1, $2) RETURNING id" article (format nil "urn:uuid:~A" (make-uuid)) :single!)) (author (query "INSERT INTO users(name, status, email, website) VALUES ($1, 'visitor', $2, $3) RETURNING id" name email website :single!))) (when tkey (query "INSERT INTO used_transaction_keys(key) VALUES ($1)" tkey :none)) (query "INSERT INTO comment_revisions(comment, content, author, format, status, article_revision, submitter_ip, submitter_user_agent) VALUES ($1, $2, $3, 'text', $4, $5, $6, $7)" comment body author (if spam-p "spam" "pending") revision *real-remote-addr* *user-agent* :none) (setq submission-notice (cond (spam-p (list :content "

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" :message-type "success-message")))))))) (expand-page page-template (getf article-params :title) (list* :articles (list article-params) :link (getf article-params :link) :info-messages (if submission-notice (list submission-notice) nil) template-params))))))))))) (defun find-transaction-key-handler (path) (when (string= path "RPC/generate-transaction-key") (dynamic-lambda (*user-name* *password* *propagated-params* *base-uri* *use-ssl-p*) () (with-db (list :content-type "text/plain; charset=utf-8" :body (format nil "~D" (query "SELECT nextval('transaction_key_seq')" :single!))))))) (defun keywordify (thing) (intern (string-upcase (format nil "~A" thing)) "KEYWORD")) (defun parse-accept-language-header (accept-lang) (let ((*read-eval* nil) languages) (ppcre:do-register-groups (lang quality) ("\\b(\\w+)(?:-\\w+)?(?:;q=([0-9.]+))?\\b" accept-lang) (push (cons lang (if quality (read-from-string quality) 1.0)) languages)) (mapcar (lambda (x) (list (cons "language" (car x)))) (stable-sort (reverse languages) #'> :key #'cdr)))) (defun find-request-handler (path params accept-lang) (let ((*requested-characteristics* (or (when-let (langstr (or (cdr (assoc "lang" params :test #'equal)) (cdr (assoc "hl" params :test #'equal)))) (let ((langs (split-sequence #\| langstr))) (mapcar (lambda (x) (list (cons "language" x))) langs))) (append (parse-accept-language-header accept-lang) *default-characteristics-precedence-list*))) (*propagated-params* (remove-if-not (lambda (x) (member (car x) (list "lang" "hl") :test #'equal)) params)) (*base-uri* (if *use-ssl-p* *base-uri/ssl* *base-uri/plain*))) (or (find-article-summary-handler path params) (find-comment-moderation-handler path params) (find-journal-archive-request-handler path (assoc "full" params :test #'equal) (cond ((assoc "feed" params :test #'equal) :view-feed) (t :view))) (find-article-request-handler path params (cond ((assoc "edit" params :test #'equal) :edit) ((assoc "atom" params :test #'equal) :view-atom-entry) (t :view))) (find-transaction-key-handler path))))