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navi2ch-thumbnail.el
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navi2ch-thumbnail.el
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;;; navi2ch-thumbnail.el --- thumbnail view for navi2ch -*- coding: iso-2022-7bit; -*-
;; Copyright (C) 2010 by Navi2ch Project
;; Authors: MIZUNUMA Yuto <mizmiz@users.sourceforge.net>
;; Keywords: network 2ch
;; This file 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, or (at your option)
;; any later version.
;; This file 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 GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; $B%5%`%M%$%k$rI=<($9$k5!G=$G$9(B
;; $B2hA|I=<($KBP1~$7$?(Bemacs$B$GF0$-$^$9(B
;; $B2hA|%j%s%/(BURL$B>e$G(B','$B$r2!$9$H%5%`%M%$%k2hA|$rA^F~I=<($7$^$9!#<+F0<hF@!"(B
;; $B<+F0I=<($O$7$^$;$s!#4pK\E*$K%-!<$G6nF0$G$9!#%-%c%C%7%e$r;}$C$F$$$k2h(B
;; $BA|$O<+F0I=<($5$l$^$9!#%-%c%C%7%e$N<+F0:o=|5!G=$O$"$j$^$;$s!#4pK\E*$K(B
;; $B%3%^%s%I$O(BImageMagick$B0MB8$G$9!#(B
;;
;; $B;29M$K$7$?%3!<%I(B(navi2ch$B%9%l$N$I$3$+$G8+$?(B)$B$OHsF14|$@$C$?$j30It%7%'(B
;; $B%kC!$-$@$C$?$j$HJ#;($J$N$G!"$J$k$Y$/%7%s%W%k$K:F9=@.$7$^$7$?(B
;; To Do
;; - $B$I$3$+(B($BA4BN(B?)$B$r(B(display-images-p)$B$G0O$`$Y$-$@$,MW8!F$(B
;; - $B%-!<%P%$%s%ID4@0(B
;; - $B%9%l:FIA2h;~$K%5%`%M$rFI$^$J$+$C$?$jFI$s$@$j$,$"$k$+$b(B
;; $B@_DjNc(B
;; Windows
;; (setq navi2ch-thumbnail-image-convert-program
;; "C:/Program Files/ImageMagick-6.2.8-Q16/convert.exe")
;; (setq navi2ch-thumbnail-image-identify-program
;; "C:/Program Files/ImageMagick-6.2.8-Q16/identify.exe")
;; (setq navi2ch-browse-url-image-program
;; "c:/win/iview425j/i_view32.exe") ;; IrfanView
;; MacOSX
;; (setq navi2ch-browse-url-image-program
;; "/Applications/Preview.app/Contents/MacOS/Preview")
;; (setq navi2ch-thumbnail-image-convert-program
;; "/opt/local/bin/convert") ;; MacPort ImageMagick
;; (setq navi2ch-thumbnail-image-identify-program "/opt/local/bin/identify")
;; $B;H$$J}!"7s%-!<%P%$%s%I(B
;;
;; URL$B$K%+!<%=%k$,$"$k>uBV$G(B','$B$r2!$9$H%5%`%M%$%kA^F~(B. $B%5%`%M%$%k$K%+!<(B
;; $B%=%k$,$"$k>uBV$G(B','$B$r2!$9$H30It%S%e!<%"!<$G%*%j%8%J%k2hA|I=<((B($BK\Ev$O(B
;; enter$B%-!<$G$d$k$[$&$,4qNo$J5$$b$9$k(B)
;;
;; $B%5%`%M%$%k$K%+!<%=%k$,$"$k>uBV$G(B'V'(shift+v)$B$G2hA|$rJ]B8(B($B%5%`%M%$%k$G$O$J$/!"(B
;; $B85$NBg$-$$2hA|(B)
;;
;; Esc+Enter$B$G(BURL$B$r%V%i%&%6$G3+$/(B($B4{B85!G=$K4]Ej$2(B)$B!#2hA|%S%e!<%"!<$,;X(B
;; $BDj$5$l$F$k$H!"$=$N(BURL$B$r3+$/$N$G%j%b!<%H$J%U%!%$%k$r3+$1$k%S%e!<%"!<(B
;; $B$,I,MW(B($B85!9$=$NF0:n(B)
;;
;; $B%5%`%M%$%k$K%+!<%=%k$,$"$k>uBV$G(B'C-cC-d'$B$r2!$9$H%-%c%C%7%e2hA|$r:o=|(B.
;;
;; 'T'$B$r2!$9$H%+!<%=%k$,$"$k%l%9(B1$B8D$N%l%9Fb$N(BURL$B$rA4<hF@(B
;;; Code
(provide 'navi2ch-thumbnail)
(defcustom navi2ch-thumbnail-thumbnail-directory
(expand-file-name "navi2ch-thumbnails/" navi2ch-directory)
"* $B2hA|%-%c%C%7%e%G%#%l%/%H%j(B"
:type 'string
:group 'navi2ch)
(defcustom navi2ch-thumbnail-save-content-dir "~/"
"* $B2hA|J]B8;~$N%G%#%U%)%k%H%G%#%l%/%H%j(B"
:type 'string
:group 'navi2ch)
(defcustom navi2ch-thumbnail-image-convert-program
(executable-find "convert")
"* $B%5%`%M%$%k:n@.%W%m%0%i%`(B"
:type 'string
:group 'navi2ch)
(defcustom navi2ch-thumbnail-image-identify-program
(executable-find "identify")
"* $B%5%`%M%$%k2hA|H=JL%W%m%0%i%`(B"
:type 'string
:group 'navi2ch)
(defcustom navi2ch-thumbnail-thumbsize-width 300
"* $B%5%`%M%$%kI=<(%5%$%:2#(B($BEyG\=L>.$G%"%9%Z%/%HHfJ];}(B)"
:type 'integer
:group 'navi2ch)
(defcustom navi2ch-thumbnail-thumbsize-height 150
"* $B%5%`%M%$%kI=<(%5%$%:=D(B($BEyG\=L>.$G%"%9%Z%/%HHfJ];}(B)"
:type 'integer
:group 'navi2ch)
(defcustom navi2ch-thumbnail-use-mac-sips nil
"* $B%5%`%M%$%k:n@.$K(BMacOSX$B$NI8=`%D!<%k$G$"$k(Bsips$B$r;H$&(B"
:type 'bool
:group 'navi2ch)
(defcustom navi2ch-thumbanil-imagemagick-resize-option "-sample"
"* ImageMagick $B$G3HBg=L>.$r9T$J$&$5$$$N%*%W%7%g%s(B"
:group 'navi2ch
:type '(radio (const :format "-sample ($B9bB.(B)" "-sample")
(const :format "-resize ($B9b2h<A(B)" "-resize")))
(defvar navi2ch-thumbnail-404-list
(list "/404\.s?html$"
"10mai_404\.html$"))
(defvar navi2ch-thumbnail-enable-status-check t)
(defvar navi2ch-thumbnail-url-coversion-table
'(
;; http://imepic.jp/20111231/11111 ->
;; http://img1.imepic.jp/image/20111231/11111.jpg?550e3768ff8455488ae8d5582f55db6d
("h?ttp://imepic\\.jp/\\([0-9/]+\\)" ".jpg" navi2ch-thumbnail-imepic "http://img1.imepic.jp/image/")
("h?t?tps?://twitter.com/.+/status/[0-9]+/photo/1" ".jpg" navi2ch-thumbnail-twitpic nil)
)
"$B%j%9%H9=B$(B
0:$BBP>](BURL$B@55,I=8=(B
1:$BI,MW$J$i$PIU2C3HD%;R(B($B3HD%;RL5$7$@$H2hA|%S%e!<%"!<$,<oN`$NH=JL%_%9$r$9$k(B)
2:$BCV49=hM}4X?t(B(2$BCJ3,$N<hF@%W%m%;%9$,I,MW$J>l9g(B)
3:$BCV49@55,I=8=(B($B>e5-(B0$B$G=&$C$?@55,I=8=$rKvHx$KIU2C(B)"
)
(defun navi2ch-thumbnail-image-pre (url &optional force)
"force$B$O%9%l:FIA2h$G$O(Bnil"
(let ((rtn nil) (real-image-url url) (target-list nil) (cache-url url))
;;imepic$BEy$N(BURL$B$,2hA|$C$]$/$J$$>l9g$N=hM}(B
(dolist (l navi2ch-thumbnail-url-coversion-table)
(setq url-regex (nth 0 l))
(setq ext (nth 1 l))
(when (string-match url-regex url)
(setq target-list l)
(if ext
(setq cache-url (concat url ext)))))
;;$B%-%c%C%7%e$,$"$k>l9g$O%-%c%C%7%eI=<((B
(setq rtn (navi2ch-thumbnail-insert-image-cache cache-url))
;;$B%-%c%C%7%e$,L5$$$N$G<hF@(B
(when (and (not rtn) force)
(setq real-image-url (navi2ch-thumbnail-url-status-check url))
(dolist (l navi2ch-thumbnail-404-list)
(when (string-match l real-image-url)
(error "$B%U%!%$%k$,(B404 url=%s" url)))
;;URL$B=q$-49$($,I,MW$J>l9g(B
(if target-list
(setq real-image-url (funcall (nth 2 target-list) url (nth 0 target-list) (nth 3 target-list))))
(setq rtn (navi2ch-thumbnail-show-image real-image-url cache-url url))
rtn )))
(defun navi2ch-thumbnail-url-replace (url regex-src-url regex-dist-url)
"URL$B$NC1=cCV49(B"
(string-match regex-src-url url)
(message "%s" regex-dist-url)
(concat regex-dist-url (match-string 1 url)))
(defun navi2ch-thumbnail-imepic (url regex-src-url regex-dist-url)
"imepic$B$N>l9g$N2hA|$r<hF@(B"
(let ((proc (navi2ch-net-send-request
url
"GET"))
cont)
(setq cont (navi2ch-net-get-content proc))
(if (string-match "\\(http://img1\.imepic\.jp/image/[0-9]+/[0-9]+\.jpg\?.+\\)\"" cont)
(setq img-url (match-string 1 cont))
(error "can't get image url from %s" url)))
; (message "imepic:%s" img-url)
img-url)
(defun navi2ch-thumbnail-twitpic (url &optional dummy0 dummy1)
"twitpic$B$N>l9g$N2hA|$r<hF@(B"
(let ((proc (navi2ch-net-send-request
url
"GET"))
cont)
(setq cont (navi2ch-net-get-content proc))
(if (string-match "src=\"\\(https?://pbs\.twimg\.com/media/.+\.jpg\\)\"" cont)
(setq twitpic-img (match-string 1 cont))
(error "can't get image url from %s" url))))
;;article$B$+$i2hA|$i$7$-%j%s%/$rC5$9(Bregex$B$r(B1$B9T$K$^$H$a$k(B
(defvar navi2ch-thumbnail-image-url-regex nil)
(defun navi2ch-thumbnail-image-url-regex-build ()
"article$B$+$i2hA|$i$7$-%j%s%/$rC5$9(Bregex$B$r(B1$B9T$K$^$H$a$k(B"
(setq navi2ch-thumbnail-image-url-regex
(concat "\\("
(mapconcat (function (lambda (x) (nth 0 x)))
navi2ch-thumbnail-url-coversion-table "\\|")
"\\|h?t?tps?://[^ \t\n\r]+\\.\\(gif\\|jpe?g\\|png\\)"
"\\)")))
(defun navi2ch-thumbnail-insert-image-reload ()
"$B%9%l$,:FIA2h$5$l$k;~$K%5%`%M$b:FIA2h(B"
(interactive)
(let (url)
(when (display-images-p)
(save-excursion
(if (not navi2ch-thumbnail-image-url-regex)
(navi2ch-thumbnail-image-url-regex-build))
(let ((buffer-read-only nil))
(goto-char (point-min))
(while (re-search-forward navi2ch-thumbnail-image-url-regex nil t)
(setq url (match-string 1))
(navi2ch-thumbnail-image-pre url nil)))))))
(eval-and-compile
(defalias 'navi2ch-create-image (if (fboundp 'create-animated-image)
'create-animated-image
'create-image)))
(defun navi2ch-plist-drop (props drops)
(let (new-props)
(while props
(unless (memq (car props) drops)
(setq new-props (nconc new-props (list (car props) (cadr props)))))
(setq props (cddr props)))
new-props))
(defun navi2ch-create-scaled-image (file-or-data &optional type data-p &rest props)
(setq file-or-data (substring-no-properties file-or-data))
(when (and (plist-member props :width)
(plist-member props :height))
(let* ((new-props (navi2ch-plist-drop props '(:width :height)))
(image (apply 'navi2ch-create-image
file-or-data type data-p new-props))
(size (image-size image))
(width (car size))
(height (cdr size)))
(setq props
(if (< (/ (float height) navi2ch-thumbnail-thumbsize-height)
(/ (float width) navi2ch-thumbnail-thumbsize-width))
(plist-put new-props :width navi2ch-thumbnail-thumbsize-width)
(plist-put new-props :height navi2ch-thumbnail-thumbsize-height)))))
(apply 'navi2ch-create-image
file-or-data type data-p props))
(defun navi2ch-thumbnail-save-content
(cache-filename filename &optional overwrite)
"$B%-%c%C%7%e$+$i2hA|$rJ]B8(B($B%5%`%M%$%k$G$O$J$/852hA|(B)"
(interactive
(let* ((prop-filename (get-text-property (point) 'file-name))
(default-filename (and prop-filename
(file-name-nondirectory prop-filename))))
(list (or (get-text-property (point) 'navi2ch-link)
(error "No file to save."))
(let ((filename
(read-file-name
(if default-filename
(format "Save file (default `%s'): "
default-filename)
"Save file: ")
navi2ch-thumbnail-save-content-dir
(expand-file-name default-filename
navi2ch-thumbnail-save-content-dir))))
(if (file-directory-p filename)
(if default-filename
(expand-file-name default-filename filename)
(error "%s is a directory" filename))
filename))
0)))
(copy-file cache-filename filename overwrite))
(defun navi2ch-thumbnail-show-image-external ()
"$B30It%S%e!<%"!<$GI=<((B"
(interactive)
(let ((type (car (get-text-property (point) 'display)))
(prop (get-text-property (point) 'navi2ch-link)))
(when (eq type 'image)
(navi2ch-browse-url-image
(if (eq system-type 'windows-nt)
(navi2ch-replace-string "/" "\\\\" prop t)
prop)))))
(defun navi2ch-thumbnail-image-delete-cache ()
"$B<hF@$7$?2hA|$r:o=|!#%-%c%C%7%e$,L5$/$J$k$NI=<($5$l$J$/$J$k(B"
(interactive)
(let* ((type (car (get-text-property (point) 'display)))
(file (get-text-property (point) 'navi2ch-link))
(thumb (concat file ".jpg")))
(when (and file (file-exists-p file))
(delete-file file)
(message "deleting file:%s " file))
(when (and thumb (file-exists-p thumb))
(delete-file thumb)
(message "deleting thumbnail:%s " thumb))))
(defun navi2ch-thumbnail-insert-image-cache (url)
(if (string-match "h?ttps?://\\(.+\\)$" url)
(setq url (match-string 1 url)))
(let ((thumb_dir navi2ch-thumbnail-thumbnail-directory)
file thumb image-attr)
(setq url (navi2ch-thumbnail-image-escape-filename url))
(setq file (concat thumb_dir url))
(setq thumb (concat thumb_dir url ".jpg"))
(when (and (not (file-exists-p thumb)) (file-exists-p file))
(setq thumb file))
(let ((buffer-read-only nil))
(when (file-exists-p thumb)
(move-beginning-of-line nil)
(insert-image
(if (fboundp 'imagemagick-types)
(navi2ch-create-scaled-image thumb
'imagemagick nil
:width navi2ch-thumbnail-thumbsize-width
:height navi2ch-thumbnail-thumbsize-height)
(navi2ch-create-image thumb)))
(add-text-properties
(1- (point)) (point)
(list 'link t 'link-head t
'url file 'help-echo file
'navi2ch-link-type 'image 'navi2ch-link file 'file-name file))
(setq image-attr (navi2ch-thumbnail-image-identify file))
(insert (format " (%sx%s:%sk%s)"
(nth 0 image-attr)
(nth 1 image-attr)
(round (/ (nth 7 (file-attributes file)) 1024))
(if (nth 2 image-attr) " GIF ANIME" "")))
(if (re-search-forward
(concat "h?ttps?://\\([^ \t\n\r]+\\."
(regexp-opt navi2ch-browse-url-image-extentions t)
"\\)") nil t)
(save-excursion
(let ((url (concat "https?://" (match-string 1)))
(beg (match-beginning 0))
(end (match-end 0)))
(add-text-properties beg end '(navi2ch-image-shown "shown")))))
(move-end-of-line nil)
t))))
(defun navi2ch-thumbnail-all-show ()
"1$B%l%9Fb$N2hA|$rO"B3<hF@I=<((B"
(interactive)
(let* ((prop (get-text-property (point) 'current-number))
(beg (if prop
(point)
(previous-single-property-change (point) 'current-number)))
(end (next-single-property-change
(if prop (1+ (point)) (point))
'current-number)))
(navi2ch-thumbnail-image-show-region
(if beg (max (1- beg) (point-min)) (point-min))
end)))
(defun navi2ch-thumbnail-image-show-region (begin end)
"$B%j!<%8%g%sFb$N2hA|(BURL$B$rI=<((B"
(interactive "rP")
(save-restriction
(save-excursion
(let ((num (navi2ch-article-get-current-number))
(board (cdr (assq 'uri navi2ch-article-current-board)))
(regex (concat "h?ttp://\\([^ \t\n\r]+\\."
(regexp-opt navi2ch-browse-url-image-extentions t)
"\\)")))
(narrow-to-region begin end)
(goto-char begin)
(while (re-search-forward regex nil t)
(goto-char (match-beginning 0))
(navi2ch-thumbnail-select-current-link)
(goto-char (match-end 0)))))))
(defun navi2ch-thumbnail-image-shown-p ()
(string= (get-text-property (point) 'navi2ch-image-shown) "shown"))
(defun navi2ch-thumbnail-image-escape-filename (filename)
"$B%U%!%$%kL>$K;H$($J$$J8;z$r%(%9%1!<%W(B"
(navi2ch-replace-string-regexp-alist '(("-" . "%2d")
(":" . "%3a")
("\\?" . "%63"))
filename
t))
(defun navi2ch-thumbnail-show-image (url org-url &optional referer)
(save-excursion
(let ((buffer-read-only nil)
(thumb-dir navi2ch-thumbnail-thumbnail-directory)
thumb-file file width height size anime filename
image-attr)
(unless (and (stringp org-url)
(string-match "tps?://\\(.+\\)$" org-url))
(error "URL not match"))
(setq file (expand-file-name
(navi2ch-thumbnail-image-escape-filename
(match-string 1 org-url))
thumb-dir))
(setq thumb-file (concat file ".jpg"))
(when (navi2ch-net-update-file url file nil nil nil nil
(when referer
(list (cons "Referer" referer))))
(unless (file-exists-p file)
(error "$B%U%!%$%k$,$"$j$^$;$s(B %s" file))
(unless (image-type-from-file-header file)
(let (buffer-error)
(with-temp-buffer
(insert-file-contents file nil 0 500)
(setq buffer-error (buffer-string)))
(delete-file file)
(error "$B2hA|%U%!%$%k$G$O$"$j$^$;$s(B %s %s" file buffer-error)))
(setq filename (file-name-nondirectory file))
(setq image-attr (navi2ch-thumbnail-image-identify file))
(if (not image-attr)
(error "$B2hA|%U%!%$%k$r<1JL$G$-$^$;$s(B %s" file))
(setq anime (nth 2 image-attr))
(setq width (nth 0 image-attr))
(setq height (nth 1 image-attr))
(setq size (nth 7 (file-attributes file)))
(cond
((and (< width navi2ch-thumbnail-thumbsize-width)
(< height navi2ch-thumbnail-thumbsize-height))
(copy-file file thumb-file)
(insert-image (navi2ch-create-image file)))
((fboundp 'imagemagick-types)
(let ((thumb (navi2ch-create-scaled-image
file
'imagemagick nil
:width navi2ch-thumbnail-thumbsize-width
:height navi2ch-thumbnail-thumbsize-height)))
(insert-image thumb)))
(t
(with-temp-buffer
(cond
;;MacOSX$B$O(Bsips$B$H$$$&I8=`%D!<%k$G2hA|JQ49$G$-$k(B
;;GIF$B%"%K%a=hM}$O=L>.$@$1$G$G$-$k(B($B!)(B)
(navi2ch-thumbnail-use-mac-sips
(call-process "sips" nil t nil
"-s" "format" "jpeg" file "--out" thumb-file)
(call-process "sips" nil t nil
"--resampleHeight"
(number-to-string navi2ch-thumbnail-thumbsize-height)
thumb-file "--out" thumb-file))
(t
(if (or (not anime) (fboundp 'create-animated-image))
(call-process navi2ch-thumbnail-image-convert-program
nil t nil
navi2ch-thumbanil-imagemagick-resize-option
(format "%sx%s"
navi2ch-thumbnail-thumbsize-width
navi2ch-thumbnail-thumbsize-height)
file thumb-file)
;; GIF$B%"%K%a$O(B1$B%U%l!<%`$@$1$r;H$&(B
(call-process navi2ch-thumbnail-image-convert-program
nil t nil
"-scene" "0"
navi2ch-thumbanil-imagemagick-resize-option
(format "%sx%s"
navi2ch-thumbnail-thumbsize-width
navi2ch-thumbnail-thumbsize-height)
file (concat file ".jpg"))
(rename-file (concat file "-0" ".jpg") thumb-file)
(dolist (delfile (directory-files (file-name-directory thumb-file)
t
(concat (file-name-nondirectory file)
"-.+\.jpg")))
(delete-file delfile))
(message "gif anime %s" anime)))))
(insert-image (navi2ch-create-image thumb-file))))
(add-text-properties (1- (point)) (point)
(list 'link t 'link-head t
'url file 'help-echo file
'navi2ch-link-type 'image 'navi2ch-link file
'file-name filename
'width width 'height height 'size size)))
(insert (format " (%s x %s :%s%sk) " width height
(if anime " GIF ANIME" "") (round (/ size 1024))))
(when (re-search-forward
(concat "h?ttps?://\\([^ \t\n\r]+\\."
(regexp-opt navi2ch-browse-url-image-extentions t)
"\\)") nil t)
(save-excursion
(let ((url (concat "http://" (match-string 1)))
(beg (match-beginning 0))
(end (match-end 0)))
(add-text-properties beg end '(navi2ch-image-shown "shown"))))))))
(defun navi2ch-thumbnail-select-current-link (&optional browse-p)
(interactive "P")
(let ((type (get-text-property (point) 'navi2ch-link-type))
(prop (get-text-property (point) 'navi2ch-link))
url)
(cond
((eq type 'url)
(cond
((and (not (navi2ch-thumbnail-image-shown-p))
(string-match navi2ch-thumbnail-image-url-regex prop))
(navi2ch-thumbnail-image-pre prop t)
; (message "not image url but image")
)
((and (file-name-extension prop)
(member (downcase (file-name-extension prop))
navi2ch-browse-url-image-extentions))
; (when (not (navi2ch-thumbnail-insert-image-cache
; (substring prop 7 nil)))
; (setq url (navi2ch-thumbnail-url-status-check prop))
; (dolist (l navi2ch-thumbnail-404-list)
; (when (string-match l url)
; (error "$B%U%!%$%k$,(B404 url=%s" url)))
; (navi2ch-thumbnail-show-image url prop))
)))
((eq type 'image)
(navi2ch-thumbnail-show-image-external)))))
(defun navi2ch-thumbnail-url-status-check (url)
"$B2hA|<hF@A0$K(B302$B$d(B404$B$N%A%'%C%/!#(B302$B$N>l9g0\F0@h(BURL$B$rJV$9(B"
(when navi2ch-thumbnail-enable-status-check
(let (header status md5 proc)
(while (not (or (string= status "200")
(string= status "201")
(string= status "400")
(string= status "405")))
(setq proc (navi2ch-net-send-request
url "HEAD"
(list
; (cons "User-Agent:" navi2ch-net-user-agent)
(cons "Referer" url )
)))
(unless proc (error "$B%5!<%P$K@\B3$G$-$^$;$s(B url=%s" url))
(setq status (navi2ch-net-get-status proc))
(unless status (error "$B%5!<%P$K@\B3$G$-$^$;$s(B url=%s" url))
(message "status %s" status)
;; (setq header (navi2ch-net-get-header proc))
;; (when (setq md5 (cdr (assq 'Content-MD5 header)))
;; (error "Content-MD5 %s" md5))
(cond ((or (string= status "404")
(string= status "403")
(string= status "408")
(string= status "503"))
(error "$B%V%i%&%:$9$k$N$d$a$^$7$?(B return code %s" status))
((or (string= status "301")
(string= status "302")
(string= status "303")
(string= status "307")
)
(setq header (navi2ch-net-get-header proc))
(setq url (cdr (assq 'location header)))
(message "loacation %s" url))))))
url)
(defun navi2ch-thumbnail-image-jpeg-identify (data)
(let ((len (length data)) (i 2) (anime nil))
(catch 'jfif
;;read more 8 byte in loop
(while (< i (- len 8))
(let ((nbytes (+ (lsh (aref data (+ i 2)) 8)
(aref data (+ i 3))))
(code (+ (lsh (aref data i) 8)
(aref data (+ i 1)))))
(cond
;; DHT
((= code #xffc4))
;; APP
((and (>= code #xffe0) (<= code #xffed)))
;; SOF0(baseline) or SOF2(progressive)
((and (>= code #xffc0) (<= code #xffcF))
(let ((sample (aref data (+ i 4)))
(ysize (+ (lsh (aref data (+ i 5)) 8)
(aref data (+ i 6))))
(xsize (+ (lsh (aref data (+ i 7)) 8)
(aref data (+ i 8)))))
(throw 'jfif (list xsize ysize anime)))))
;;skip x00(end marker) xff(start marker)
(setq i (+ i 2 nbytes)))))))
(defun navi2ch-thumbnail-image-png-identify (data)
(let ((i 8)
(anime nil))
;; magic number
(when (string-match "\\`\x49\x48\x44\x52"
(substring data (+ i 4)))
(let (;; 4byte
(xsize
(+
(lsh (aref data (+ i 8)) 24)
(lsh (aref data (+ i 9)) 16)
(lsh (aref data (+ i 10)) 8)
(aref data (+ i 11))))
;; 4byte
(ysize
(+
(lsh (aref data (+ i 12)) 24)
(lsh (aref data (+ i 13)) 16)
(lsh (aref data (+ i 14)) 8)
(aref data (+ i 15)))))
(list xsize ysize anime)))))
(defun navi2ch-thumbnail-image-gif-identify (data)
(let ((i 0)
(len (length data))
xsize
ysize
(anime nil)
sgct slct)
(setq i (+ i 6))
;; GIF Header
;; 2byte
(setq xsize (+ (lsh (aref data (+ i 1)) 8)
(aref data i)))
(setq i (+ i 2))
;; 2byte
(setq ysize (+ (lsh (aref data (+ i 1)) 8)
(aref data (+ i 0))))
(setq i (+ i 2))
;; Size of Global Color Table(3 Bits)
(setq sgct (+ 1 (logand (aref data i) 7)))
(setq i (+ i 3))
;; skip Global Color Table
(setq i (+ i (* (expt 2 sgct) 3)))
;; Block
(while (< i len)
(cond
((= (aref data (+ i 0)) #x21)
(setq i (+ i 1))
(cond
;; Graphic Control Extension
((= (aref data (+ i 0)) #xf9)
(message "Graphic Control Extension")
(setq i (+ i 7)))
;; maybe GIF Anime
((= (aref data (+ i 0)) #xff)
(message "Application Extension GIF ANIME")
(setq anime t)
(setq i (+ i 7)))
((= (aref data (+ i 0)) #xfe)
(message "Comment Extension")
(setq i (+ i 1))
(setq i (+ i (aref data i)))
(setq i (+ i 2))
)))
;; image block table
((= (aref data (+ i 0)) #x2c)
(message "Image Block")
(setq i (+ i 9))
(setq slct (+ 1(logand (aref data i) 7)))
(setq i (+ i (* (expt 2 slct) 3)))
(setq i (+ i (aref data i)))
(setq i (+ i 1))
; (message "last i:%s" i)
)
(t (setq i (+ i 1024)))))
(list xsize ysize anime)))
(defun navi2ch-thumbnail-image-identify (file &optional size)
"$B2hA|%U%!%$%k$+$iI}(B,$B9b$5(B,GIF$B%"%K%a$+!)$r<hF@$7$F(Blist$B$GJV$9!#(B
$B<hF@$G$-$J$+$C$?>l9g$O30It%W%m%0%i%`(B(navi2ch-thumbnail-image-identify-program)$B$KMj$k!#(B
$B$=$l$G$b%@%a$J$i(Bnil$B$rJV$9!#(Bsize$B$GFI$_9~$`%5%$%:$r;XDj$b$G$-$k(B"
(let ((file-size (nth 7 (file-attributes file)))
data rtn)
(catch 'identify
(unless (file-readable-p file) (throw 'identify nil))
(with-temp-buffer
(set-buffer-multibyte nil)
(unless size
(setq size 1024))
(insert-file-contents-literally file nil 0 size)
(setq data (buffer-substring (point-min)
(min (point-max)
(+ (point-min) size))))
(cond
;; gif
((string-match "\\`GIF" data)
(setq rtn (navi2ch-thumbnail-image-gif-identify data)))
;; png
((string-match "\\`\x89\x50\x4E\x47\x0D\x0A\x1A\x0A" data)
(setq rtn (navi2ch-thumbnail-image-png-identify data)))
;; jpeg
((string-match "\\`\xff\xd8" data)
(setq rtn (navi2ch-thumbnail-image-jpeg-identify data))))
(if rtn (throw 'identify rtn)))
;; $B>pJs$,<hF@$G$-$J$+$C$?>l9g$O%X%C%@$r$5$i$KFI$_9~$`(B
(when (not (= size file-size))
(setq size (* size 10))
(if (> size file-size)
(setq size file-size))
(setq rtn (navi2ch-thumbnail-image-identify file size))
(if rtn (throw 'identify rtn)))
;; $B$=$l$G$bL5M}$J$i30It%W%m%0%i%`$KMj$k(B
(when navi2ch-thumbnail-image-identify-program
(message "identify called %s" file)
(with-temp-buffer
(cond
(navi2ch-thumbnail-use-mac-sips
(let (width height)
(call-process 'sips' nil t nil "-g" "-all" file)
(when (re-search-forward
"pixelWidth: \\([0-9]+\\)")
(setq width (string-to-number (match-string 1))))
(when (re-search-forward
"pixelHeight: \\([0-9]+\\)")
(setq height (string-to-number (match-string 1))))
;;anime gif$B$O$"$-$i$a$k(B
(list width height nil)))
(t
(call-process navi2ch-thumbnail-image-identify-program nil t nil
"-quiet" "-format" "\"%n %w %h %b\"" file)
(goto-char (point-min))
(when (re-search-forward
"\\([0-9]+\\) \\([0-9]+\\) \\([0-9]+\\) \\([0-9]+\\)")
(list (string-to-number (match-string 2))
(string-to-number (match-string 3))
(> (string-to-number (match-string 1)) 1))))))))))
;;; navi2ch-thumbnail.el ends here