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eec82323 LMI |
1 | ;;; nnweb.el --- retrieving articles via web search engines |
2 | ;; Copyright (C) 1996,97 Free Software Foundation, Inc. | |
3 | ||
4 | ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no> | |
5 | ;; Keywords: news | |
6 | ||
7 | ;; This file is part of GNU Emacs. | |
8 | ||
9 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation; either version 2, or (at your option) | |
12 | ;; any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
23 | ||
24 | ;;; Commentary: | |
25 | ||
26 | ;; Note: You need to have `url' and `w3' installed for this | |
27 | ;; backend to work. | |
28 | ||
29 | ;;; Code: | |
30 | ||
5ab7173c RS |
31 | (eval-when-compile (require 'cl)) |
32 | ||
eec82323 LMI |
33 | (require 'nnoo) |
34 | (require 'message) | |
35 | (require 'gnus-util) | |
36 | (require 'gnus) | |
eec82323 | 37 | (require 'nnmail) |
0d5dc4a5 DL |
38 | (eval-when-compile |
39 | (ignore-errors | |
40 | (require 'w3) | |
41 | (require 'url) | |
42 | (require 'w3-forms))) | |
43 | ;; Report failure to find w3 at load time if appropriate. | |
44 | (eval '(progn | |
45 | (require 'w3) | |
46 | (require 'url) | |
47 | (require 'w3-forms))) | |
eec82323 LMI |
48 | |
49 | (nnoo-declare nnweb) | |
50 | ||
51 | (defvoo nnweb-directory (nnheader-concat gnus-directory "nnweb/") | |
52 | "Where nnweb will save its files.") | |
53 | ||
54 | (defvoo nnweb-type 'dejanews | |
55 | "What search engine type is being used.") | |
56 | ||
57 | (defvar nnweb-type-definition | |
58 | '((dejanews | |
59 | (article . nnweb-dejanews-wash-article) | |
60 | (map . nnweb-dejanews-create-mapping) | |
61 | (search . nnweb-dejanews-search) | |
62 | (address . "http://xp9.dejanews.com/dnquery.xp") | |
63 | (identifier . nnweb-dejanews-identity)) | |
64 | (reference | |
65 | (article . nnweb-reference-wash-article) | |
66 | (map . nnweb-reference-create-mapping) | |
67 | (search . nnweb-reference-search) | |
68 | (address . "http://www.reference.com/cgi-bin/pn/go") | |
69 | (identifier . identity)) | |
70 | (altavista | |
71 | (article . nnweb-altavista-wash-article) | |
72 | (map . nnweb-altavista-create-mapping) | |
73 | (search . nnweb-altavista-search) | |
74 | (address . "http://www.altavista.digital.com/cgi-bin/query") | |
75 | (id . "/cgi-bin/news?id@%s") | |
76 | (identifier . identity))) | |
77 | "Type-definition alist.") | |
78 | ||
79 | (defvoo nnweb-search nil | |
80 | "Search string to feed to DejaNews.") | |
81 | ||
82 | (defvoo nnweb-max-hits 100 | |
83 | "Maximum number of hits to display.") | |
84 | ||
85 | (defvoo nnweb-ephemeral-p nil | |
86 | "Whether this nnweb server is ephemeral.") | |
87 | ||
88 | ;;; Internal variables | |
89 | ||
90 | (defvoo nnweb-articles nil) | |
91 | (defvoo nnweb-buffer nil) | |
92 | (defvoo nnweb-group-alist nil) | |
93 | (defvoo nnweb-group nil) | |
94 | (defvoo nnweb-hashtb nil) | |
95 | ||
96 | ;;; Interface functions | |
97 | ||
98 | (nnoo-define-basics nnweb) | |
99 | ||
100 | (deffoo nnweb-retrieve-headers (articles &optional group server fetch-old) | |
101 | (nnweb-possibly-change-server group server) | |
102 | (save-excursion | |
103 | (set-buffer nntp-server-buffer) | |
104 | (erase-buffer) | |
105 | (let (article header) | |
106 | (while (setq article (pop articles)) | |
107 | (when (setq header (cadr (assq article nnweb-articles))) | |
108 | (nnheader-insert-nov header))) | |
109 | 'nov))) | |
110 | ||
111 | (deffoo nnweb-request-scan (&optional group server) | |
112 | (nnweb-possibly-change-server group server) | |
113 | (setq nnweb-hashtb (gnus-make-hashtable 4095)) | |
114 | (funcall (nnweb-definition 'map)) | |
115 | (unless nnweb-ephemeral-p | |
116 | (nnweb-write-active) | |
117 | (nnweb-write-overview group))) | |
118 | ||
119 | (deffoo nnweb-request-group (group &optional server dont-check) | |
120 | (nnweb-possibly-change-server nil server) | |
121 | (when (and group | |
122 | (not (equal group nnweb-group)) | |
123 | (not nnweb-ephemeral-p)) | |
124 | (let ((info (assoc group nnweb-group-alist))) | |
125 | (setq nnweb-group group) | |
126 | (setq nnweb-type (nth 2 info)) | |
127 | (setq nnweb-search (nth 3 info)) | |
128 | (unless dont-check | |
129 | (nnweb-read-overview group)))) | |
130 | (cond | |
131 | ((not nnweb-articles) | |
132 | (nnheader-report 'nnweb "No matching articles")) | |
133 | (t | |
134 | (let ((active (if nnweb-ephemeral-p | |
135 | (cons (caar nnweb-articles) | |
136 | (caar (last nnweb-articles))) | |
137 | (cadr (assoc group nnweb-group-alist))))) | |
138 | (nnheader-report 'nnweb "Opened group %s" group) | |
139 | (nnheader-insert | |
140 | "211 %d %d %d %s\n" (length nnweb-articles) | |
141 | (car active) (cdr active) group))))) | |
142 | ||
143 | (deffoo nnweb-close-group (group &optional server) | |
144 | (nnweb-possibly-change-server group server) | |
145 | (when (gnus-buffer-live-p nnweb-buffer) | |
146 | (save-excursion | |
147 | (set-buffer nnweb-buffer) | |
148 | (set-buffer-modified-p nil) | |
149 | (kill-buffer nnweb-buffer))) | |
150 | t) | |
151 | ||
152 | (deffoo nnweb-request-article (article &optional group server buffer) | |
153 | (nnweb-possibly-change-server group server) | |
154 | (save-excursion | |
155 | (set-buffer (or buffer nntp-server-buffer)) | |
156 | (let* ((header (cadr (assq article nnweb-articles))) | |
157 | (url (and header (mail-header-xref header)))) | |
158 | (when (or (and url | |
159 | (nnweb-fetch-url url)) | |
160 | (and (stringp article) | |
161 | (nnweb-definition 'id t) | |
162 | (let ((fetch (nnweb-definition 'id)) | |
163 | art) | |
164 | (when (string-match "^<\\(.*\\)>$" article) | |
165 | (setq art (match-string 1 article))) | |
166 | (and fetch | |
167 | art | |
168 | (nnweb-fetch-url | |
169 | (format fetch article)))))) | |
170 | (unless nnheader-callback-function | |
171 | (funcall (nnweb-definition 'article)) | |
172 | (nnweb-decode-entities)) | |
173 | (nnheader-report 'nnweb "Fetched article %s" article) | |
174 | t)))) | |
175 | ||
176 | (deffoo nnweb-close-server (&optional server) | |
177 | (when (and (nnweb-server-opened server) | |
178 | (gnus-buffer-live-p nnweb-buffer)) | |
179 | (save-excursion | |
180 | (set-buffer nnweb-buffer) | |
181 | (set-buffer-modified-p nil) | |
182 | (kill-buffer nnweb-buffer))) | |
183 | (nnoo-close-server 'nnweb server)) | |
184 | ||
185 | (deffoo nnweb-request-list (&optional server) | |
186 | (nnweb-possibly-change-server nil server) | |
187 | (save-excursion | |
188 | (set-buffer nntp-server-buffer) | |
189 | (nnmail-generate-active nnweb-group-alist) | |
190 | t)) | |
191 | ||
192 | (deffoo nnweb-request-update-info (group info &optional server) | |
193 | (nnweb-possibly-change-server group server) | |
194 | ;;(setcar (cddr info) nil) | |
195 | ) | |
196 | ||
197 | (deffoo nnweb-asynchronous-p () | |
198 | t) | |
199 | ||
200 | (deffoo nnweb-request-create-group (group &optional server args) | |
201 | (nnweb-possibly-change-server nil server) | |
202 | (nnweb-request-delete-group group) | |
203 | (push `(,group ,(cons 1 0) ,@args) nnweb-group-alist) | |
204 | (nnweb-write-active) | |
205 | t) | |
206 | ||
207 | (deffoo nnweb-request-delete-group (group &optional force server) | |
208 | (nnweb-possibly-change-server group server) | |
209 | (gnus-delete-assoc group nnweb-group-alist) | |
210 | (gnus-delete-file (nnweb-overview-file group)) | |
211 | t) | |
212 | ||
213 | (nnoo-define-skeleton nnweb) | |
214 | ||
215 | ;;; Internal functions | |
216 | ||
217 | (defun nnweb-read-overview (group) | |
218 | "Read the overview of GROUP and build the map." | |
219 | (when (file-exists-p (nnweb-overview-file group)) | |
220 | (nnheader-temp-write nil | |
221 | (nnheader-insert-file-contents (nnweb-overview-file group)) | |
222 | (goto-char (point-min)) | |
223 | (let (header) | |
224 | (while (not (eobp)) | |
225 | (setq header (nnheader-parse-nov)) | |
226 | (forward-line 1) | |
227 | (push (list (mail-header-number header) | |
228 | header (mail-header-xref header)) | |
229 | nnweb-articles) | |
230 | (nnweb-set-hashtb header (car nnweb-articles))))))) | |
231 | ||
232 | (defun nnweb-write-overview (group) | |
233 | "Write the overview file for GROUP." | |
234 | (nnheader-temp-write (nnweb-overview-file group) | |
235 | (let ((articles nnweb-articles)) | |
236 | (while articles | |
237 | (nnheader-insert-nov (cadr (pop articles))))))) | |
238 | ||
239 | (defun nnweb-set-hashtb (header data) | |
240 | (gnus-sethash (nnweb-identifier (mail-header-xref header)) | |
241 | data nnweb-hashtb)) | |
242 | ||
243 | (defun nnweb-get-hashtb (url) | |
244 | (gnus-gethash (nnweb-identifier url) nnweb-hashtb)) | |
245 | ||
246 | (defun nnweb-identifier (ident) | |
247 | (funcall (nnweb-definition 'identifier) ident)) | |
248 | ||
249 | (defun nnweb-overview-file (group) | |
250 | "Return the name of the overview file of GROUP." | |
251 | (nnheader-concat nnweb-directory group ".overview")) | |
252 | ||
253 | (defun nnweb-write-active () | |
254 | "Save the active file." | |
255 | (nnheader-temp-write (nnheader-concat nnweb-directory "active") | |
256 | (prin1 `(setq nnweb-group-alist ',nnweb-group-alist) (current-buffer)))) | |
257 | ||
258 | (defun nnweb-read-active () | |
259 | "Read the active file." | |
260 | (load (nnheader-concat nnweb-directory "active") t t t)) | |
261 | ||
262 | (defun nnweb-definition (type &optional noerror) | |
263 | "Return the definition of TYPE." | |
264 | (let ((def (cdr (assq type (assq nnweb-type nnweb-type-definition))))) | |
265 | (when (and (not def) | |
266 | (not noerror)) | |
267 | (error "Undefined definition %s" type)) | |
268 | def)) | |
269 | ||
270 | (defun nnweb-possibly-change-server (&optional group server) | |
271 | (nnweb-init server) | |
272 | (when server | |
273 | (unless (nnweb-server-opened server) | |
274 | (nnweb-open-server server))) | |
275 | (unless nnweb-group-alist | |
276 | (nnweb-read-active)) | |
277 | (when group | |
278 | (when (and (not nnweb-ephemeral-p) | |
279 | (not (equal group nnweb-group))) | |
280 | (nnweb-request-group group nil t)))) | |
281 | ||
282 | (defun nnweb-init (server) | |
283 | "Initialize buffers and such." | |
284 | (unless (gnus-buffer-live-p nnweb-buffer) | |
285 | (setq nnweb-buffer | |
286 | (save-excursion | |
287 | (nnheader-set-temp-buffer | |
288 | (format " *nnweb %s %s %s*" nnweb-type nnweb-search server)))))) | |
289 | ||
290 | (defun nnweb-fetch-url (url) | |
291 | (save-excursion | |
292 | (if (not nnheader-callback-function) | |
293 | (let ((buf (current-buffer))) | |
294 | (save-excursion | |
295 | (set-buffer nnweb-buffer) | |
296 | (erase-buffer) | |
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297 | (url-insert-file-contents url) |
298 | (copy-to-buffer buf (point-min) (point-max)) | |
299 | t)) | |
eec82323 LMI |
300 | (nnweb-url-retrieve-asynch |
301 | url 'nnweb-callback (current-buffer) nnheader-callback-function) | |
302 | t))) | |
303 | ||
304 | (defun nnweb-callback (buffer callback) | |
305 | (when (gnus-buffer-live-p url-working-buffer) | |
306 | (save-excursion | |
307 | (set-buffer url-working-buffer) | |
308 | (funcall (nnweb-definition 'article)) | |
309 | (nnweb-decode-entities) | |
310 | (set-buffer buffer) | |
311 | (goto-char (point-max)) | |
312 | (insert-buffer-substring url-working-buffer)) | |
313 | (funcall callback t) | |
314 | (gnus-kill-buffer url-working-buffer))) | |
315 | ||
316 | (defun nnweb-url-retrieve-asynch (url callback &rest data) | |
317 | (let ((url-request-method "GET") | |
318 | (old-asynch url-be-asynchronous) | |
319 | (url-request-data nil) | |
320 | (url-request-extra-headers nil) | |
321 | (url-working-buffer (generate-new-buffer-name " *nnweb*"))) | |
322 | (setq-default url-be-asynchronous t) | |
323 | (save-excursion | |
324 | (set-buffer (get-buffer-create url-working-buffer)) | |
325 | (setq url-current-callback-data data | |
326 | url-be-asynchronous t | |
327 | url-current-callback-func callback) | |
328 | (url-retrieve url)) | |
329 | (setq-default url-be-asynchronous old-asynch))) | |
330 | ||
331 | (defun nnweb-encode-www-form-urlencoded (pairs) | |
332 | "Return PAIRS encoded for forms." | |
333 | (mapconcat | |
334 | (function | |
335 | (lambda (data) | |
336 | (concat (w3-form-encode-xwfu (car data)) "=" | |
337 | (w3-form-encode-xwfu (cdr data))))) | |
338 | pairs "&")) | |
339 | ||
340 | (defun nnweb-fetch-form (url pairs) | |
341 | (let ((url-request-data (nnweb-encode-www-form-urlencoded pairs)) | |
342 | (url-request-method "POST") | |
343 | (url-request-extra-headers | |
344 | '(("Content-type" . "application/x-www-form-urlencoded")))) | |
345 | (url-insert-file-contents url) | |
346 | (setq buffer-file-name nil)) | |
347 | t) | |
348 | ||
349 | (defun nnweb-decode-entities () | |
350 | (goto-char (point-min)) | |
351 | (while (re-search-forward "&\\([a-z]+\\);" nil t) | |
352 | (replace-match (char-to-string (or (cdr (assq (intern (match-string 1)) | |
a8151ef7 | 353 | w3-html-entities)) |
eec82323 LMI |
354 | ?#)) |
355 | t t))) | |
356 | ||
357 | (defun nnweb-remove-markup () | |
358 | (goto-char (point-min)) | |
359 | (while (search-forward "<!--" nil t) | |
360 | (delete-region (match-beginning 0) | |
361 | (or (search-forward "-->" nil t) | |
362 | (point-max)))) | |
363 | (goto-char (point-min)) | |
364 | (while (re-search-forward "<[^>]+>" nil t) | |
365 | (replace-match "" t t))) | |
366 | ||
367 | ;;; | |
368 | ;;; DejaNews functions. | |
369 | ;;; | |
370 | ||
371 | (defun nnweb-dejanews-create-mapping () | |
372 | "Perform the search and create an number-to-url alist." | |
373 | (save-excursion | |
374 | (set-buffer nnweb-buffer) | |
375 | (erase-buffer) | |
376 | (when (funcall (nnweb-definition 'search) nnweb-search) | |
377 | (let ((i 0) | |
378 | (more t) | |
379 | (case-fold-search t) | |
380 | (active (or (cadr (assoc nnweb-group nnweb-group-alist)) | |
381 | (cons 1 0))) | |
382 | Subject Score Date Newsgroup Author | |
383 | map url) | |
384 | (while more | |
385 | ;; Go through all the article hits on this page. | |
386 | (goto-char (point-min)) | |
387 | (nnweb-decode-entities) | |
388 | (goto-char (point-min)) | |
389 | (while (re-search-forward "^ +[0-9]+\\." nil t) | |
390 | (narrow-to-region | |
391 | (point) | |
392 | (cond ((re-search-forward "^ +[0-9]+\\." nil t) | |
393 | (match-beginning 0)) | |
394 | ((search-forward "\n\n" nil t) | |
395 | (point)) | |
396 | (t | |
397 | (point-max)))) | |
398 | (goto-char (point-min)) | |
399 | (when (looking-at ".*HREF=\"\\([^\"]+\\)\"") | |
400 | (setq url (match-string 1))) | |
401 | (nnweb-remove-markup) | |
402 | (goto-char (point-min)) | |
403 | (while (search-forward "\t" nil t) | |
404 | (replace-match " ")) | |
405 | (goto-char (point-min)) | |
406 | (while (re-search-forward "^ +\\([^:]+\\): +\\(.*\\)$" nil t) | |
407 | (set (intern (match-string 1)) (match-string 2))) | |
408 | (widen) | |
409 | (when (string-match "#[0-9]+/[0-9]+ *$" Subject) | |
410 | (setq Subject (substring Subject 0 (match-beginning 0)))) | |
411 | (incf i) | |
412 | (unless (nnweb-get-hashtb url) | |
413 | (push | |
414 | (list | |
415 | (incf (cdr active)) | |
416 | (make-full-mail-header | |
417 | (cdr active) (concat "(" Newsgroup ") " Subject) Author Date | |
418 | (concat "<" (nnweb-identifier url) "@dejanews>") | |
419 | nil 0 (string-to-int Score) url)) | |
420 | map) | |
421 | (nnweb-set-hashtb (cadar map) (car map)))) | |
422 | ;; See whether there is a "Get next 20 hits" button here. | |
423 | (if (or (not (re-search-forward | |
424 | "HREF=\"\\([^\"]+\\)\">Get next" nil t)) | |
425 | (>= i nnweb-max-hits)) | |
426 | (setq more nil) | |
427 | ;; Yup -- fetch it. | |
428 | (setq more (match-string 1)) | |
429 | (erase-buffer) | |
430 | (url-insert-file-contents more))) | |
431 | ;; Return the articles in the right order. | |
432 | (setq nnweb-articles | |
433 | (sort (nconc nnweb-articles map) | |
434 | (lambda (s1 s2) (< (car s1) (car s2))))))))) | |
435 | ||
436 | (defun nnweb-dejanews-wash-article () | |
437 | (let ((case-fold-search t)) | |
438 | (goto-char (point-min)) | |
439 | (re-search-forward "<PRE>" nil t) | |
440 | (delete-region (point-min) (point)) | |
441 | (re-search-forward "</PRE>" nil t) | |
442 | (delete-region (point) (point-max)) | |
443 | (nnweb-remove-markup) | |
444 | (goto-char (point-min)) | |
445 | (while (and (looking-at " *$") | |
446 | (not (eobp))) | |
447 | (gnus-delete-line)) | |
448 | (while (looking-at "\\(^[^ ]+:\\) *") | |
449 | (replace-match "\\1 " t) | |
450 | (forward-line 1)) | |
451 | (when (re-search-forward "\n\n+" nil t) | |
a8151ef7 LMI |
452 | (replace-match "\n" t t)) |
453 | (goto-char (point-min)) | |
454 | (when (search-forward "[More Headers]" nil t) | |
455 | (replace-match "" t t)))) | |
eec82323 LMI |
456 | |
457 | (defun nnweb-dejanews-search (search) | |
458 | (nnweb-fetch-form | |
459 | (nnweb-definition 'address) | |
460 | `(("query" . ,search) | |
461 | ("defaultOp" . "AND") | |
462 | ("svcclass" . "dncurrent") | |
463 | ("maxhits" . "100") | |
464 | ("format" . "verbose") | |
465 | ("threaded" . "0") | |
466 | ("showsort" . "score") | |
467 | ("agesign" . "1") | |
468 | ("ageweight" . "1"))) | |
469 | t) | |
470 | ||
471 | (defun nnweb-dejanews-identity (url) | |
472 | "Return an unique identifier based on URL." | |
473 | (if (string-match "recnum=\\([0-9]+\\)" url) | |
474 | (match-string 1 url) | |
475 | url)) | |
476 | ||
477 | ;;; | |
478 | ;;; InReference | |
479 | ;;; | |
480 | ||
481 | (defun nnweb-reference-create-mapping () | |
482 | "Perform the search and create an number-to-url alist." | |
483 | (save-excursion | |
484 | (set-buffer nnweb-buffer) | |
485 | (erase-buffer) | |
486 | (when (funcall (nnweb-definition 'search) nnweb-search) | |
487 | (let ((i 0) | |
488 | (more t) | |
489 | (case-fold-search t) | |
490 | (active (or (cadr (assoc nnweb-group nnweb-group-alist)) | |
491 | (cons 1 0))) | |
492 | Subject Score Date Newsgroups From Message-ID | |
493 | map url) | |
494 | (while more | |
495 | ;; Go through all the article hits on this page. | |
496 | (goto-char (point-min)) | |
497 | (search-forward "</pre><hr>" nil t) | |
498 | (delete-region (point-min) (point)) | |
499 | ;(nnweb-decode-entities) | |
500 | (goto-char (point-min)) | |
501 | (while (re-search-forward "^ +[0-9]+\\." nil t) | |
502 | (narrow-to-region | |
503 | (point) | |
504 | (if (re-search-forward "^$" nil t) | |
505 | (match-beginning 0) | |
506 | (point-max))) | |
507 | (goto-char (point-min)) | |
508 | (when (looking-at ".*href=\"\\([^\"]+\\)\"") | |
509 | (setq url (match-string 1))) | |
510 | (nnweb-remove-markup) | |
511 | (goto-char (point-min)) | |
512 | (while (search-forward "\t" nil t) | |
513 | (replace-match " ")) | |
514 | (goto-char (point-min)) | |
515 | (while (re-search-forward "^\\([^:]+\\): \\(.*\\)$" nil t) | |
516 | (set (intern (match-string 1)) (match-string 2))) | |
517 | (widen) | |
518 | (search-forward "</pre>" nil t) | |
519 | (incf i) | |
520 | (unless (nnweb-get-hashtb url) | |
521 | (push | |
522 | (list | |
523 | (incf (cdr active)) | |
524 | (make-full-mail-header | |
525 | (cdr active) (concat "(" Newsgroups ") " Subject) From Date | |
526 | Message-ID | |
527 | nil 0 (string-to-int Score) url)) | |
528 | map) | |
529 | (nnweb-set-hashtb (cadar map) (car map)))) | |
530 | (setq more nil)) | |
531 | ;; Return the articles in the right order. | |
532 | (setq nnweb-articles | |
533 | (sort (nconc nnweb-articles map) | |
534 | (lambda (s1 s2) (< (car s1) (car s2))))))))) | |
535 | ||
536 | (defun nnweb-reference-wash-article () | |
537 | (let ((case-fold-search t)) | |
538 | (goto-char (point-min)) | |
539 | (re-search-forward "^</center><hr>" nil t) | |
540 | (delete-region (point-min) (point)) | |
541 | (search-forward "<pre>" nil t) | |
542 | (forward-line -1) | |
543 | (let ((body (point-marker))) | |
544 | (search-forward "</pre>" nil t) | |
545 | (delete-region (point) (point-max)) | |
546 | (nnweb-remove-markup) | |
547 | (goto-char (point-min)) | |
548 | (while (looking-at " *$") | |
549 | (gnus-delete-line)) | |
550 | (narrow-to-region (point-min) body) | |
551 | (while (and (re-search-forward "^$" nil t) | |
552 | (not (eobp))) | |
553 | (gnus-delete-line)) | |
554 | (goto-char (point-min)) | |
555 | (while (looking-at "\\(^[^ ]+:\\) *") | |
556 | (replace-match "\\1 " t) | |
557 | (forward-line 1)) | |
558 | (goto-char (point-min)) | |
559 | (when (re-search-forward "^References:" nil t) | |
560 | (narrow-to-region | |
561 | (point) (if (re-search-forward "^$\\|^[^:]+:" nil t) | |
562 | (match-beginning 0) | |
563 | (point-max))) | |
564 | (goto-char (point-min)) | |
565 | (while (not (eobp)) | |
566 | (unless (looking-at "References") | |
567 | (insert "\t") | |
568 | (forward-line 1))) | |
569 | (goto-char (point-min)) | |
570 | (while (search-forward "," nil t) | |
571 | (replace-match " " t t))) | |
572 | (widen) | |
573 | (set-marker body nil)))) | |
574 | ||
575 | (defun nnweb-reference-search (search) | |
a8151ef7 LMI |
576 | (url-insert-file-contents |
577 | (concat | |
578 | (nnweb-definition 'address) | |
579 | "?" | |
580 | (nnweb-encode-www-form-urlencoded | |
581 | `(("search" . "advanced") | |
582 | ("querytext" . ,search) | |
583 | ("subj" . "") | |
584 | ("name" . "") | |
585 | ("login" . "") | |
586 | ("host" . "") | |
587 | ("organization" . "") | |
588 | ("groups" . "") | |
589 | ("keywords" . "") | |
590 | ("choice" . "Search") | |
591 | ("startmonth" . "Jul") | |
592 | ("startday" . "25") | |
593 | ("startyear" . "1996") | |
594 | ("endmonth" . "Aug") | |
595 | ("endday" . "24") | |
596 | ("endyear" . "1996") | |
597 | ("mode" . "Quick") | |
598 | ("verbosity" . "Verbose") | |
599 | ("ranking" . "Relevance") | |
600 | ("first" . "1") | |
601 | ("last" . "25") | |
602 | ("score" . "50"))))) | |
603 | (setq buffer-file-name nil) | |
eec82323 LMI |
604 | t) |
605 | ||
606 | ;;; | |
607 | ;;; Alta Vista | |
608 | ;;; | |
609 | ||
610 | (defun nnweb-altavista-create-mapping () | |
611 | "Perform the search and create an number-to-url alist." | |
612 | (save-excursion | |
613 | (set-buffer nnweb-buffer) | |
614 | (erase-buffer) | |
615 | (let ((part 0)) | |
616 | (when (funcall (nnweb-definition 'search) nnweb-search part) | |
617 | (let ((i 0) | |
618 | (more t) | |
619 | (case-fold-search t) | |
620 | (active (or (cadr (assoc nnweb-group nnweb-group-alist)) | |
621 | (cons 1 0))) | |
622 | subject date from id group | |
623 | map url) | |
624 | (while more | |
625 | ;; Go through all the article hits on this page. | |
626 | (goto-char (point-min)) | |
627 | (search-forward "<dt>" nil t) | |
628 | (delete-region (point-min) (match-beginning 0)) | |
629 | (goto-char (point-min)) | |
630 | (while (search-forward "<dt>" nil t) | |
631 | (replace-match "\n<blubb>")) | |
632 | (nnweb-decode-entities) | |
633 | (goto-char (point-min)) | |
634 | (while (re-search-forward "<blubb>.*href=\"\\([^\"]+\\)\"><strong>\\([^>]*\\)</strong></a><dd>\\([^-]+\\)- <b>\\([^<]+\\)<.*href=\"news:\\([^\"]+\\)\">.*\">\\(.+\\)</a><P>" | |
635 | nil t) | |
636 | (setq url (match-string 1) | |
637 | subject (match-string 2) | |
638 | date (match-string 3) | |
639 | group (match-string 4) | |
640 | id (concat "<" (match-string 5) ">") | |
641 | from (match-string 6)) | |
642 | (incf i) | |
643 | (unless (nnweb-get-hashtb url) | |
644 | (push | |
645 | (list | |
646 | (incf (cdr active)) | |
647 | (make-full-mail-header | |
648 | (cdr active) (concat "(" group ") " subject) from date | |
649 | id nil 0 0 url)) | |
650 | map) | |
651 | (nnweb-set-hashtb (cadar map) (car map)))) | |
652 | ;; See if we want more. | |
653 | (when (or (not nnweb-articles) | |
654 | (>= i nnweb-max-hits) | |
655 | (not (funcall (nnweb-definition 'search) | |
656 | nnweb-search (incf part)))) | |
657 | (setq more nil))) | |
658 | ;; Return the articles in the right order. | |
659 | (setq nnweb-articles | |
660 | (sort (nconc nnweb-articles map) | |
661 | (lambda (s1 s2) (< (car s1) (car s2)))))))))) | |
662 | ||
663 | (defun nnweb-altavista-wash-article () | |
664 | (goto-char (point-min)) | |
665 | (let ((case-fold-search t)) | |
666 | (when (re-search-forward "^<strong>" nil t) | |
667 | (delete-region (point-min) (match-beginning 0))) | |
668 | (goto-char (point-min)) | |
669 | (while (looking-at "<strong>\\([^ ]+\\) +</strong> +\\(.*\\)$") | |
670 | (replace-match "\\1: \\2" t) | |
671 | (forward-line 1)) | |
672 | (when (re-search-backward "^References:" nil t) | |
673 | (narrow-to-region (point) (progn (forward-line 1) (point))) | |
674 | (goto-char (point-min)) | |
675 | (while (re-search-forward "<A.*\\?id@\\([^\"]+\\)\">[0-9]+</A>" nil t) | |
676 | (replace-match "<\\1> " t))) | |
677 | (widen) | |
678 | (nnweb-remove-markup))) | |
679 | ||
680 | (defun nnweb-altavista-search (search &optional part) | |
a8151ef7 LMI |
681 | (url-insert-file-contents |
682 | (concat | |
683 | (nnweb-definition 'address) | |
684 | "?" | |
685 | (nnweb-encode-www-form-urlencoded | |
686 | `(("pg" . "aq") | |
687 | ("what" . "news") | |
688 | ,@(when part `(("stq" . ,(int-to-string (* part 30))))) | |
689 | ("fmt" . "d") | |
690 | ("q" . ,search) | |
691 | ("r" . "") | |
692 | ("d0" . "") | |
693 | ("d1" . ""))))) | |
694 | (setq buffer-file-name nil) | |
695 | t) | |
eec82323 LMI |
696 | |
697 | (provide 'nnweb) | |
698 | ||
699 | ;;; nnweb.el ends here |