Rewrite archiver project
* Rewrite archiver.rkt to manage the stages order * Rewrite archiver-gui.rkt: * Remembers the previous incomplete queue items * Pretty graphics for icons and progress bars * Segmented progress bars to indicate different stages * Fix archiver-cli.rkt to use new stages * Switch to req -d, so it doesn't auto-install gui libs
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		|  | @ -6,24 +6,24 @@ | |||
|              "" | ||||
|              "Downloaded pages go into `archive/` next to the executable." | ||||
|              "Database goes into `archiver.db*` next to the executable." | ||||
|              "The database is necessary to store your download progress and resume where you left off if the process is interrupted.") | ||||
|       (ps "" | ||||
|           "Default output style is `progress` in a tty and `lines` otherwise.")) | ||||
|              "The database is necessary to store your download progress and resume where you left off if the process is interrupted.")) | ||||
| 
 | ||||
| (flag (output-quiet?) | ||||
|       ("-q" "--output-quiet" "disable progress output") | ||||
|       (output-quiet? #t)) | ||||
| 
 | ||||
| (flag (output-lines?) | ||||
|       ("-l" "--output-lines" "output the name of each file downloaded") | ||||
|       (output-lines? #t)) | ||||
| 
 | ||||
| (flag (output-progress?) | ||||
|       ("-p" "--output-progress" "progress output for terminals") | ||||
|       ("-p" "--output-progress" "progress output for terminals (default in a tty)") | ||||
|       (output-progress? #t)) | ||||
| 
 | ||||
| (flag (output-lines?) | ||||
|       ("-l" "--output-lines" "output the name of each file downloaded (default outside of a tty)") | ||||
|       (output-lines? #t)) | ||||
| 
 | ||||
| (constraint (one-of output-quiet? output-lines? output-progress?)) | ||||
| 
 | ||||
| 
 | ||||
| 
 | ||||
| (program | ||||
|  (start [wikiname "wikiname to download"]) | ||||
|  ;; set up arguments | ||||
|  | @ -42,30 +42,27 @@ | |||
|  ;; check | ||||
|  (when (or (not wikiname) (equal? wikiname "")) | ||||
|    (raise-user-error "Please specify the wikiname to download on the command line.")) | ||||
|  ;; stage 1 | ||||
|  (cond [(output-lines?) (displayln "Downloading list of pages...")] | ||||
|        [(output-progress?) (printf "Downloading list of pages... \r")]) | ||||
|  (if-necessary-download-list-of-pages | ||||
|   wikiname | ||||
|   (λ (a b c) | ||||
|     (cond [(output-progress?) (printf "Downloading list of pages... [~a/~b]\r" a b)]))) | ||||
|  ;; stage 2 | ||||
|  (save-each-page | ||||
|   wikiname | ||||
|   (λ (a b c) | ||||
|     (define basename (basename->name-for-query c)) | ||||
|     (cond | ||||
|       [(output-lines?) | ||||
|        (displayln basename)] | ||||
|       [(output-progress?) | ||||
|        (when (eq? (modulo a 20) 0) | ||||
|          (thread (λ () (update-width)))) | ||||
|        (define prefix (format "[~a/~a] " a b)) | ||||
|        (define rest (- width (string-length prefix))) | ||||
|        (define real-width (min (string-length basename) rest)) | ||||
|        (define spare-width (- rest real-width)) | ||||
|        (define name-display (substring basename 0 real-width)) | ||||
|        (define whitespace (make-string spare-width #\ )) | ||||
|        (printf "~a~a~a\r" prefix name-display whitespace)])))) | ||||
|  ;; progress reporting based on selected mode | ||||
|  (define (report-progress a b c) | ||||
|    (define basename (basename->name-for-query c)) | ||||
|    (cond | ||||
|      [(output-lines?) | ||||
|       (displayln basename)] | ||||
|      [(output-progress?) | ||||
|       (when (eq? (modulo a 20) 0) | ||||
|         (thread (λ () (update-width)))) | ||||
|       (define prefix (format "[~a] [~a/~a] " wikiname a b)) | ||||
|       (define rest (- width (string-length prefix))) | ||||
|       (define real-width (min (string-length basename) rest)) | ||||
|       (define spare-width (- rest real-width)) | ||||
|       (define name-display (substring basename 0 real-width)) | ||||
|       (define whitespace (make-string spare-width #\ )) | ||||
|       (printf "~a~a~a\r" prefix name-display whitespace)])) | ||||
|  ;; download all stages | ||||
|  (for ([stage all-stages] | ||||
|        [i (in-naturals 1)]) | ||||
|    (printf "> Stage ~a/~a~n" i (length all-stages)) | ||||
|    (stage wikiname report-progress) | ||||
|    (displayln ""))) | ||||
| 
 | ||||
| (run start) | ||||
|  |  | |||
|  | @ -1,7 +1,7 @@ | |||
| #lang racket/base | ||||
| (require racket/list | ||||
| (require racket/file | ||||
|          racket/list | ||||
|          racket/path | ||||
|          racket/runtime-path | ||||
|          racket/string | ||||
|          json | ||||
|          json-pointer | ||||
|  | @ -9,9 +9,16 @@ | |||
|          "../lib/syntax.rkt") | ||||
| 
 | ||||
| (provide | ||||
|  slc) | ||||
|  get-slc | ||||
|  query-exec* | ||||
|  query-rows* | ||||
|  query-list* | ||||
|  query-value* | ||||
|  query-maybe-value* | ||||
|  query-maybe-row*) | ||||
| 
 | ||||
| (define-runtime-path database-file "../storage/archiver.db") | ||||
| (define storage-path (anytime-path ".." "storage")) | ||||
| (define database-file (build-path storage-path "archiver.db")) | ||||
| 
 | ||||
| (define migrations | ||||
|   (wrap-sql | ||||
|  | @ -25,23 +32,50 @@ | |||
|     (query-exec slc "alter table wiki add column license_text TEXT") | ||||
|     (query-exec slc "alter table wiki add column license_url TEXT")))) | ||||
| 
 | ||||
| (define slc (sqlite3-connect #:database database-file #:mode 'create)) | ||||
| (query-exec slc "PRAGMA journal_mode=WAL") | ||||
| (define database-version | ||||
|   (with-handlers ([exn:fail:sql? | ||||
|                    (λ (exn) | ||||
|                      ; need to set up the database | ||||
|                      (query-exec slc "create table database_version (version integer, primary key (version))") | ||||
|                      (query-exec slc "insert into database_version values (0)") | ||||
|                      0)]) | ||||
|     (query-value slc "select version from database_version"))) | ||||
| (define slc (box #f)) | ||||
| (define (get-slc) | ||||
|   (define slc* (unbox slc)) | ||||
|   (cond | ||||
|     [slc* slc*] | ||||
|     [else | ||||
|      (make-directory* storage-path) | ||||
|      (define slc* (sqlite3-connect #:database database-file #:mode 'create)) | ||||
|      (query-exec slc* "PRAGMA journal_mode=WAL") | ||||
|      (define database-version | ||||
|        (with-handlers ([exn:fail:sql? | ||||
|                         (λ (exn) | ||||
|                           ; need to set up the database | ||||
|                           (query-exec slc* "create table database_version (version integer, primary key (version))") | ||||
|                           (query-exec slc* "insert into database_version values (0)") | ||||
|                           0)]) | ||||
|          (query-value slc* "select version from database_version"))) | ||||
| 
 | ||||
| (let do-migrate-step () | ||||
|   (when (database-version . < . (length migrations)) | ||||
|     (call-with-transaction | ||||
|      slc | ||||
|      (list-ref migrations database-version)) | ||||
|     (set! database-version (add1 database-version)) | ||||
|     (query-exec slc "update database_version set version = $1" database-version) | ||||
|     (do-migrate-step))) | ||||
|      (let do-migrate-step () | ||||
|        (when (database-version . < . (length migrations)) | ||||
|          (call-with-transaction | ||||
|           slc* | ||||
|           (list-ref migrations database-version)) | ||||
|          (set! database-version (add1 database-version)) | ||||
|          (query-exec slc* "update database_version set version = $1" database-version) | ||||
|          (do-migrate-step))) | ||||
| 
 | ||||
|      (set-box! slc slc*) | ||||
|      slc*])) | ||||
| 
 | ||||
| (define (query-exec* . args) | ||||
|   (apply query-exec (get-slc) args)) | ||||
| 
 | ||||
| (define (query-rows* . args) | ||||
|   (apply query-rows (get-slc) args)) | ||||
| 
 | ||||
| (define (query-list* . args) | ||||
|   (apply query-list (get-slc) args)) | ||||
| 
 | ||||
| (define (query-value* . args) | ||||
|   (apply query-value (get-slc) args)) | ||||
| 
 | ||||
| (define (query-maybe-value* . args) | ||||
|   (apply query-maybe-value (get-slc) args)) | ||||
| 
 | ||||
| (define (query-maybe-row* . args) | ||||
|   (apply query-maybe-row (get-slc) args)) | ||||
|  |  | |||
|  | @ -1,89 +1,128 @@ | |||
| #lang racket/base | ||||
| (require racket/class | ||||
|          racket/draw | ||||
|          racket/format | ||||
|          racket/list | ||||
|          racket/port | ||||
|          racket/set | ||||
|          racket/splicing | ||||
|          racket/string | ||||
|          db | ||||
|          net/http-easy | ||||
|          memo | ||||
|          (only-in racket/gui timer%) | ||||
|          racket/gui/easy | ||||
|          racket/gui/easy/operator | ||||
|          (only-in pict bitmap) | ||||
|          images/icons/style | ||||
|          images/icons/control | ||||
|          images/icons/stickman | ||||
|          images/icons/symbol | ||||
|          "archiver-database.rkt" | ||||
|          "archiver.rkt" | ||||
|          "../lib/url-utils.rkt" | ||||
|          "../lib/xexpr-utils.rkt") | ||||
| 
 | ||||
| (define active-threads (mutable-seteq)) | ||||
| (default-icon-material rubber-icon-material) | ||||
| 
 | ||||
| (require (for-syntax racket/base racket/match racket/set racket/string)) | ||||
| 
 | ||||
| (define-syntax (@> stx) | ||||
|   (define form (cdr (syntax->datum stx))) | ||||
|   (match form | ||||
|     [(list form) ; (@> (fn @obs)) | ||||
|      ;; identify the observables and replace with non-@ symbols | ||||
|      (define collection (mutable-set)) | ||||
|      (define updated | ||||
|        (let loop ([sexp form]) | ||||
|          (cond [(symbol? sexp) | ||||
|                 (let ([as-s (symbol->string sexp)]) | ||||
|                   (if (string-prefix? as-s "@") | ||||
|                       (let ([without-@ (string->symbol (substring as-s 1))]) | ||||
|                         (set-add! collection (cons sexp without-@)) | ||||
|                         without-@) | ||||
|                       sexp))] | ||||
|                [(pair? sexp) (cons (loop (car sexp)) (loop (cdr sexp)))] | ||||
|                [#t sexp]))) | ||||
|      (define collection-l (set->list collection)) | ||||
|      ;; return obs-combine -> updated-form | ||||
|      (datum->syntax stx `(obs-combine (λ (,@(map cdr collection-l)) ,updated) ,@(map car collection-l)))] | ||||
|     [(list (? string? str) args ...) ; (@> "Blah: ~a/~a" @arg1 arg2) | ||||
|      ;; identify the observables and replace with non-@ symbols | ||||
|      (define collection-l | ||||
|        (for/list ([arg args]) | ||||
|          (if (symbol? arg) | ||||
|              (let ([as-s (symbol->string arg)]) | ||||
|                (if (string-prefix? as-s "@") | ||||
|                    (let ([without-@ (string->symbol (substring as-s 1))]) | ||||
|                      (cons arg without-@)) | ||||
|                    (cons #f arg))) | ||||
|              (cons #f arg)))) | ||||
|      (define collection-lo (filter car collection-l)) | ||||
|      ;; return obs-combine -> format | ||||
|      (datum->syntax stx `(obs-combine (λ (,@(map cdr collection-lo)) (format ,str ,@(map cdr collection-l))) ,@(map car collection-lo)))])) | ||||
| 
 | ||||
| (define/obs @auto-retry #f) | ||||
| (define/obs @wikiname "") | ||||
| (define/obs @state 'waiting) | ||||
| (define/obs @num-pages 1) | ||||
| (define/obs @done-pages 0) | ||||
| (define/obs @just-done "") | ||||
| (define/obs @queue '()) | ||||
| (define @title | ||||
|   (obs-combine | ||||
|    (λ (state queue num-pages done-pages) | ||||
|      (define suffix (if (pair? queue) | ||||
|                         (format " +~a" (length queue)) | ||||
|                         "")) | ||||
|      (define progress (if (eq? num-pages 0) | ||||
|                           " 0%" | ||||
|                           (format " ~a%" (round (inexact->exact (* (/ done-pages num-pages) 100)))))) | ||||
|      (case state | ||||
|        [(waiting stage-0) (format "Fandom Archiver~a" suffix)] | ||||
|        [(stage-1) (format "Fandom Archiver 0%~a" suffix)] | ||||
|        [(stage-2) (format "Fandom Archiver~a~a" progress suffix)] | ||||
|        [(err) "ERROR Fandom Archiver"] | ||||
|        [(done) "Fandom Archiver 100%"])) | ||||
|    @state @queue @num-pages (obs-throttle @done-pages #:duration 5000))) | ||||
| 
 | ||||
| (define-syntax-rule (t body ...) | ||||
|   (set-add! active-threads (thread (λ () body ...)))) | ||||
| (define-struct qi^ (wikiname st stage progress max-progress eta th) #:transparent) ;; queue item | ||||
| 
 | ||||
| (define (do-start-or-queue) | ||||
|   (define wikiname (obs-peek @wikiname)) | ||||
|   (:= @wikiname "") | ||||
|   (when (not (equal? (string-trim wikiname) "")) | ||||
|     (@queue . <~ . (λ (q) (append q (list wikiname)))) | ||||
|     (shift-queue-maybe))) | ||||
| (define rows (query-rows* "select wikiname, progress from wiki where progress < 4")) | ||||
| (define/obs @queue null) | ||||
| (define (add-wikiname-to-queue wikiname st stage) | ||||
|   (@queue . <~ . (λ (queue) | ||||
|                    (define already-exists? (findf (λ (qi) (equal? (qi^-wikiname qi) wikiname)) queue)) | ||||
|                    (if already-exists? | ||||
|                        queue | ||||
|                        (append queue (list (qi^ wikiname st stage 0 1 "..." #f))))))) | ||||
| (for ([row rows]) | ||||
|   (add-wikiname-to-queue (vector-ref row 0) | ||||
|                          (if (= (vector-ref row 1) 4) | ||||
|                              'complete | ||||
|                              'queued) | ||||
|                          (vector-ref row 1))) | ||||
| 
 | ||||
| (define (shift-queue-maybe) | ||||
|   (when (memq (obs-peek @state) '(waiting done)) | ||||
|     (define q (obs-peek @queue)) | ||||
|     (cond | ||||
|       [(pair? q) | ||||
|        (define wikiname (car q)) | ||||
|        (:= @queue (cdr q)) | ||||
|        (do-start-stage1 wikiname)] | ||||
|       [#t (:= @state 'done)]))) | ||||
| (define status-icon-size 32) | ||||
| (define status-icon-min-width 36) | ||||
| (define button-icon-size 12) | ||||
| 
 | ||||
| (define (do-start-stage1 wikiname) | ||||
|   (:= @just-done "") | ||||
|   (:= @done-pages 0) | ||||
|   (:= @num-pages 1) | ||||
|   (t (with-handlers ([exn:fail? (handle-graphical-exn wikiname)]) | ||||
|        (:= @state 'stage-0) | ||||
|        (if-necessary-download-list-of-pages wikiname (λ (now-done num-pages just-done-name) | ||||
|                                                        (:= @num-pages num-pages) | ||||
|                                                        (:= @done-pages now-done) | ||||
|                                                        (:= @just-done just-done-name) | ||||
|                                                        (:= @state 'stage-1))) | ||||
|        (do-start-stage2 wikiname)))) | ||||
| (define color-green (make-color 90 212 68)) | ||||
| 
 | ||||
| (define (do-start-stage2 wikiname) | ||||
|   (:= @just-done "") | ||||
|   (:= @num-pages 1) | ||||
|   (:= @done-pages 0) | ||||
|   (t (with-handlers ([exn:fail? (handle-graphical-exn wikiname)]) | ||||
|        (save-each-page wikiname (λ (now-done num-pages just-done-path) | ||||
|                                   (:= @num-pages num-pages) | ||||
|                                   (:= @done-pages now-done) | ||||
|                                   (:= @just-done just-done-path))) | ||||
|        (:= @state 'waiting) | ||||
|        (shift-queue-maybe))) | ||||
|   (:= @state 'stage-2)) | ||||
| (define/obs @input "") | ||||
| 
 | ||||
| (splicing-let ([frame-count 30]) | ||||
|   (define stickman-frames | ||||
|     (for/vector ([s (in-range 0 1 (/ 1 frame-count))]) | ||||
|       (running-stickman-icon | ||||
|        s | ||||
|        #:height status-icon-size | ||||
|        #:material (default-icon-material)))) | ||||
| 
 | ||||
|   (define/obs @stick-frame-no 0) | ||||
|   (define stick-timer | ||||
|     (new timer% | ||||
|          [notify-callback (λ () (@stick-frame-no . <~ . add1))] | ||||
|          [interval (truncate (/ 1000 frame-count))])) | ||||
|   (define/obs @stick | ||||
|     (@stick-frame-no . ~> . (λ (n) (vector-ref stickman-frames | ||||
|                                                (modulo n (vector-length stickman-frames))))))) | ||||
| 
 | ||||
| (define status-icons | ||||
|   (hasheq 'queued (stop-icon #:color syntax-icon-color #:height status-icon-size) | ||||
|           'paused (continue-forward-icon #:color syntax-icon-color #:height status-icon-size) | ||||
|           'running @stick | ||||
|           'error (x-icon #:height status-icon-size) | ||||
|           'complete (check-icon #:color color-green #:height status-icon-size))) | ||||
| 
 | ||||
| (define action-icons | ||||
|   (hasheq 'pause (pause-icon #:color syntax-icon-color #:height button-icon-size) | ||||
|           'resume (play-icon #:color color-green #:height button-icon-size))) | ||||
| 
 | ||||
| (define (bitmap-view @the-bitmap [min-width 1]) | ||||
|   (pict-canvas #:min-size (@> (list (max min-width (send @the-bitmap get-width)) (send @the-bitmap get-height))) #;(if min-size (list min-size min-size) #f) | ||||
|                #:stretch '(#f #f) | ||||
|                #:style '(transparent) | ||||
|                @the-bitmap | ||||
|                bitmap)) | ||||
| 
 | ||||
| (define (exn->string e) | ||||
|   (with-output-to-string | ||||
|  | @ -96,13 +135,15 @@ | |||
|           (printf ": ~a" (car item))) | ||||
|         (displayln ""))))) | ||||
| 
 | ||||
| (define ((handle-graphical-exn wikiname) e) | ||||
| (define ((handle-graphical-exn @qi) e) | ||||
|   (displayln (exn->string e) (current-error-port)) | ||||
|   (cond | ||||
|     [(obs-peek @auto-retry) | ||||
|      (do-retry-end wikiname)] | ||||
|      (void) ;; TODO | ||||
|      #;(do-retry-end wikiname)] | ||||
|     [#t | ||||
|      (:= @state 'err) | ||||
|      (update-qi @qi [st 'error]) | ||||
|      (do-try-unpause-next-entry) | ||||
|      (thread | ||||
|       (λ () | ||||
|         (define/obs @visible? #t) | ||||
|  | @ -116,89 +157,177 @@ | |||
|                          (input #:style '(multiple hscroll) | ||||
|                                 #:min-size '(#f 200) | ||||
|                                 (exn->string e)) | ||||
|                          (button "Retry Now" (λ () (:= @visible? #f) (do-retry-now wikiname))) | ||||
|                          (button "Retry Round-Robin" (λ () (:= @visible? #f) (do-retry-end wikiname))) | ||||
|                          (button "Skip Wiki" (λ () (:= @visible? #f) (do-continue))) | ||||
|                          (button "Use Auto-Retry" (λ () | ||||
|                                                     (:= @auto-retry #t) | ||||
|                                                     (:= @visible? #f) | ||||
|                                                     (do-retry-end wikiname))) | ||||
|                          (text "Be careful not to auto-retry an infinite loop!"))) | ||||
|                          ;; TODO | ||||
|                          #;(button "Retry Now" (λ () (:= @visible? #f) (do-retry-now wikiname))) | ||||
|                          #;(button "Retry Round-Robin" (λ () (:= @visible? #f) (do-retry-end wikiname))) | ||||
|                          #;(button "Skip Wiki" (λ () (:= @visible? #f) (do-continue))) | ||||
|                          #;(button "Use Auto-Retry" (λ () | ||||
|                                                       (:= @auto-retry #t) | ||||
|                                                       (:= @visible? #f) | ||||
|                                                       (do-retry-end wikiname))) | ||||
|                          #;(text "Be careful not to auto-retry an infinite loop!"))) | ||||
|          main-window))) | ||||
|      (sleep) | ||||
|      ; make sure the old broken threads are all gone | ||||
|      (for ([th active-threads]) (kill-thread th)) | ||||
|      (set-clear! active-threads)])) | ||||
|      ; make sure the broken thread is gone | ||||
|      (define th (qi^-th (obs-peek @qi))) | ||||
|      (when th (kill-thread th))])) | ||||
| 
 | ||||
| (define (do-retry-now wikiname) | ||||
|   (@queue . <~ . (λ (q) (append (list wikiname) q))) | ||||
|   (:= @state 'waiting) | ||||
|   (shift-queue-maybe)) | ||||
| (define segments | ||||
|   (list | ||||
|    (list 5/100 (make-color 0 223 217)) | ||||
|    (list 88/100 color-green) | ||||
|    (list 2/100 (make-color 0 223 217)) | ||||
|    (list 5/100 color-green))) | ||||
| (define segment-spacing 2) | ||||
| (unless (= (apply + (map car segments)) 1) | ||||
|   (error 'segments "segments add up to ~a, not 1" (apply + (map car segments)))) | ||||
| 
 | ||||
| (define (do-retry-end wikiname) | ||||
|   (@queue . <~ . (λ (q) (append q (list wikiname)))) | ||||
|   (:= @state 'waiting) | ||||
|   (shift-queue-maybe)) | ||||
| ;; return the new bitmap, which can be drawn on a dc<%> | ||||
| (define/memoize (ray-trace width height stage progress max-progress) | ||||
|   ;; (printf "rendering ~a ~a/~a at ~a~n" stage progress max-progress (current-inexact-milliseconds)) | ||||
|   (define bm (make-object bitmap% width height #f #t)) | ||||
|   (define dc (make-object bitmap-dc% bm)) | ||||
|   (define width-available (- width (* (length segments) segment-spacing))) | ||||
|   (send dc set-smoothing 'unsmoothed) | ||||
|   (send dc set-pen "black" 0 'transparent) | ||||
|   (for/fold ([offset 0]) | ||||
|             ([segment segments] | ||||
|              [i (in-naturals 0)]) ;; zero indexed stages? | ||||
|     ;; calculate start and end locations of grey bar | ||||
|     (define-values (segment-proportion segment-color) (apply values segment)) | ||||
|     (define segment-start (if (= offset 0) 0 (+ offset segment-spacing))) | ||||
|     (define segment-width (* width-available segment-proportion)) | ||||
|     ;; draw grey bar | ||||
|     (send dc set-brush (make-color 180 180 180 0.4) 'solid) | ||||
|     (send dc draw-rectangle segment-start 0 segment-width height) | ||||
|     ;; draw solid bar according to the current item's progress | ||||
|     (define proportion | ||||
|       (cond [(stage . < . i) 0] | ||||
|             [(stage . > . i) 1] | ||||
|             [(max-progress . <= . 0) 0] | ||||
|             [(progress . < . 0) 0] | ||||
|             [(progress . >= . max-progress) 1] | ||||
|             [else (progress . / . max-progress)])) | ||||
|     (send dc set-brush segment-color 'solid) | ||||
|     (send dc draw-rectangle segment-start 0 (* proportion segment-width) height) | ||||
|     (+ segment-start segment-width)) | ||||
|   (bitmap-render-icon bm 6/8)) | ||||
| 
 | ||||
| (define (do-continue) | ||||
|   (:= @state 'waiting) | ||||
|   (shift-queue-maybe)) | ||||
| ;; get ray traced bitmap (possibly from cache) and draw on dc<%> | ||||
| (define (draw-bar orig-dc qi) | ||||
|   ;; (println ray-traced) | ||||
|   (define-values (width height) (send orig-dc get-size)) | ||||
|   (send orig-dc draw-bitmap (ray-trace width height  (qi^-stage qi) (qi^-progress qi) (qi^-max-progress qi)) 0 0)) | ||||
| 
 | ||||
| (define (display-basename basename) | ||||
|   (define limit 40) | ||||
|   (cond [(string? basename) | ||||
|          (define query (basename->name-for-query basename)) | ||||
|          (define segments (string-split query "/")) | ||||
|          (when (and ((string-length query) . > . limit) ((length segments) . >= . 2)) | ||||
|            (set! query (string-append ".../" (last segments)))) | ||||
|          (when ((string-length query) . > . limit) | ||||
|            (set! query (string-append (substring query 0 (- limit 3)) "..."))) | ||||
|          query] | ||||
|         [#t "?"])) | ||||
| (define ((make-progress-updater @qi) a b c) | ||||
|   ;; (printf "~a: ~a/~a ~a~n" (qi^-wikiname (obs-peek @qi)) a b c) | ||||
|   (update-qi @qi [progress a] [max-progress b])) | ||||
| 
 | ||||
| (define (do-add-to-queue) | ||||
|   (define wikiname (string-trim (obs-peek @input))) | ||||
|   (when ((string-length wikiname) . > . 0) | ||||
|     (add-wikiname-to-queue wikiname 'queued 0)) ;; TODO: automatically start? | ||||
|   (:= @input "")) | ||||
| 
 | ||||
| (define-syntax-rule (update-qi @qi args ...) | ||||
|   (let ([wikiname (qi^-wikiname (obs-peek @qi))]) | ||||
|     (@queue . <~ . (λ (queue) | ||||
|                      (for/list ([qi queue]) | ||||
|                        (if (equal? (qi^-wikiname qi) wikiname) | ||||
|                            (struct-copy qi^ qi args ...) | ||||
|                            qi)))))) | ||||
| 
 | ||||
| (define (do-start-qi @qi) | ||||
|   (define th | ||||
|     (thread (λ () | ||||
|               (with-handlers ([exn? (handle-graphical-exn @qi)]) | ||||
|                 (define last-stage | ||||
|                   (for/last ([stage all-stages] | ||||
|                              [i (in-naturals)]) | ||||
|                     (update-qi @qi [stage i]) | ||||
|                     (stage (qi^-wikiname (obs-peek @qi)) (make-progress-updater @qi)) | ||||
|                     i)) | ||||
|                 (update-qi @qi [st 'complete] [stage (add1 last-stage)]) | ||||
|                 (do-try-unpause-next-entry))))) | ||||
|   (update-qi @qi [st 'running] [th th])) | ||||
| 
 | ||||
| (define (do-stop-qi @qi) | ||||
|   (define th (qi^-th (obs-peek @qi))) | ||||
|   (when th (kill-thread th)) | ||||
|   (update-qi @qi [th #f] [st 'paused])) | ||||
| 
 | ||||
| (define (do-try-unpause-next-entry) | ||||
|   (define queue (obs-peek @queue)) | ||||
|   (define next-qi (for/first ([qi queue] | ||||
|                               #:when (memq (qi^-st qi) '(paused queued error))) | ||||
|                     qi)) | ||||
|   (when next-qi | ||||
|     (define @qi (@queue . ~> . (λ (queue) (findf (λ (qi) (equal? (qi^-wikiname qi) (qi^-wikiname next-qi))) queue)))) | ||||
|     (do-start-qi @qi))) | ||||
| 
 | ||||
| (define main-window | ||||
|   (render | ||||
|    (window #:title @title | ||||
|            #:size '(360 200) | ||||
|            #:mixin (λ (%) (class % | ||||
|                             (super-new) | ||||
|                             (define/augment (on-close) | ||||
|                               (for ([th active-threads]) (kill-thread th)) | ||||
|                               (disconnect slc)))) | ||||
|            ;; input box at the top | ||||
|            (hpanel (text "https://") | ||||
|                    (input @wikiname | ||||
|                           (λ (event data) (cond | ||||
|                                             [(eq? event 'input) (:= @wikiname data)] | ||||
|                                             [(eq? event 'return) (do-start-or-queue)]))) | ||||
|                    (text ".fandom.com")) | ||||
|            (button (@queue . ~> . (λ (q) (if (null? q) "Start" "Queue"))) (λ () (do-start-or-queue))) | ||||
|            (text (@queue . ~> . (λ (q) (if (null? q) "" (string-join #:before-first "Queue: " q ", "))))) | ||||
|            ;; show status based on overall application state | ||||
|            (case-view | ||||
|             @state | ||||
|             ;; waiting for wikiname entry | ||||
|             ((waiting) (vpanel | ||||
|                         (text "Fill in the wikiname and click start."))) | ||||
|             ((stage-0) (vpanel | ||||
|                         (text "Checking data..."))) | ||||
|             ((stage-1) (vpanel | ||||
|                         (text "Gathering list of pages...") | ||||
|                         (text (@just-done . ~> . display-basename)) | ||||
|                         (text (@done-pages . ~> . (λ (x) (if (eq? x 0) | ||||
|                                                              "0/?" | ||||
|                                                              (format "~a/~a" x (obs-peek @num-pages)))))))) | ||||
|             ;; downloading contents | ||||
|             ((stage-2) (vpanel | ||||
|                         (text "Downloading page text...") | ||||
|                         (progress @done-pages #:range @num-pages) | ||||
|                         (text (@done-pages . ~> . (λ (x) (format "~a/~a" x (obs-peek @num-pages))))) | ||||
|                         (text (@just-done . ~> . display-basename)))) | ||||
|             ((done) (vpanel | ||||
|                      (text "All wikis downloaded!"))) | ||||
|             ((err) (vpanel | ||||
|                       (text "Error. Check the popup window."))) | ||||
|             (else (text (@state . ~> . (λ (state) (format "invalid state: ~a" state)))))) | ||||
|            (checkbox #:label "Auto-retry on error? (Dangerous)" | ||||
|                      #:checked? @auto-retry | ||||
|                      (λ:= @auto-retry))))) | ||||
|    (window | ||||
|     #:title "Fandom Archiver" | ||||
|     #:size '(400 300) | ||||
|     #:mixin (λ (%) (class % | ||||
|                      (super-new) | ||||
|                      (define/augment (on-close) | ||||
|                        (send stick-timer stop) | ||||
|                        (for ([qi (obs-peek @queue)]) | ||||
|                          (when (qi^-th qi) | ||||
|                            (kill-thread (qi^-th qi)))) | ||||
|                        #;(disconnect*)))) | ||||
|     (vpanel | ||||
|      #:spacing 10 | ||||
|      #:margin '(5 5) | ||||
|      (hpanel | ||||
|       #:stretch '(#t #f) | ||||
|       #:spacing 10 | ||||
|       (hpanel | ||||
|        (text "https://") | ||||
|        (input @input | ||||
|               (λ (event data) (cond | ||||
|                                 [(eq? event 'input) (:= @input data)] | ||||
|                                 [(eq? event 'return) (do-add-to-queue)]))) | ||||
|        (text ".fandom.com")) | ||||
|       (button "Download Wiki" do-add-to-queue)) | ||||
|      (list-view | ||||
|       #:style '(vertical) | ||||
|       @queue | ||||
|       #:key qi^-wikiname | ||||
|       (λ (k @qi) | ||||
|         (define @status-icons | ||||
|           (@> (case (qi^-st @qi) | ||||
|                 [(running) @stick] | ||||
|                 [else (hash-ref status-icons (qi^-st @qi))]))) | ||||
|         (define @is-running? | ||||
|           (@> (memq (qi^-st @qi) '(running)))) | ||||
|         ;; state icon at the left side | ||||
|         (hpanel #:stretch '(#t #f) | ||||
|                 #:alignment '(left center) | ||||
|                 #:spacing 8 | ||||
|                 (bitmap-view @status-icons status-icon-min-width) | ||||
|                 (vpanel | ||||
|                  ;; name and buttons (top half) | ||||
|                  (hpanel #:alignment '(left bottom) | ||||
|                          (text (@> (qi^-wikiname @qi))) | ||||
|                          (spacer) | ||||
|                          (hpanel | ||||
|                           #:stretch '(#f #f) | ||||
|                           (if-view @is-running? | ||||
|                                    (button (hash-ref action-icons 'pause) | ||||
|                                            (λ () (do-stop-qi @qi))) | ||||
|                                    (button (hash-ref action-icons 'resume) | ||||
|                                            (λ () (do-start-qi @qi)))))) | ||||
|                  ;; progress bar (bottom half) | ||||
|                  (hpanel | ||||
|                   (canvas | ||||
|                    @qi | ||||
|                    #:style '(transparent) | ||||
|                    #:margin '(3 3) | ||||
|                    draw-bar) | ||||
|                   (hpanel #:min-size '(68 #f) | ||||
|                           #:stretch '(#f #f) | ||||
|                           #:alignment '(right center) | ||||
|                           (text (@> (format "eta ~a" (qi^-eta @qi)))))))))))))) | ||||
|  |  | |||
|  | @ -2,38 +2,35 @@ | |||
| (require racket/file | ||||
|          racket/function | ||||
|          racket/list | ||||
|          racket/runtime-path | ||||
|          racket/path | ||||
|          racket/sequence | ||||
|          racket/string | ||||
|          net/url | ||||
|          net/mime | ||||
|          file/sha1 | ||||
|          net/http-easy | ||||
|          db | ||||
|          "../lib/html-parsing/main.rkt" | ||||
|          json | ||||
|          "archiver-database.rkt" | ||||
|          "../lib/html-parsing/main.rkt" | ||||
|          "../lib/mime-types.rkt" | ||||
|          "../lib/syntax.rkt" | ||||
|          "../lib/tree-updater.rkt" | ||||
|          "../lib/url-utils.rkt" | ||||
|          "../lib/xexpr-utils.rkt" | ||||
|          "../lib/archive-file-mappings.rkt") | ||||
| 
 | ||||
| (define archive-slc slc) | ||||
| 
 | ||||
| (provide | ||||
|  if-necessary-download-list-of-pages | ||||
|  download-list-of-pages | ||||
|  save-each-page | ||||
|  basename->name-for-query | ||||
|  image-url->values | ||||
|  hash->save-dir | ||||
|  archive-slc) | ||||
|  all-stages) | ||||
| 
 | ||||
| (module+ test | ||||
|   (require rackunit)) | ||||
| 
 | ||||
| (define-runtime-path archive-root "../storage/archive") | ||||
| #;(define archive-root "archive") | ||||
| (define archive-root (anytime-path ".." "storage/archive")) | ||||
| (make-directory* archive-root) | ||||
| 
 | ||||
| (define sources '#hasheq((style . 1) (page . 2))) | ||||
| 
 | ||||
|  | @ -46,127 +43,34 @@ | |||
|             wikiname | ||||
|             (params->query '(("action" . "query") | ||||
|                              ("meta" . "siteinfo") | ||||
|                              ("siprop" . "general|rightsinfo") | ||||
|                              ("siprop" . "general|rightsinfo|statistics") | ||||
|                              ("format" . "json") | ||||
|                              ("formatversion" . "2"))))) | ||||
|   (define data (response-json (get dest-url))) | ||||
|   (define exists? (query-maybe-value slc "select progress from wiki where wikiname = ?" wikiname)) | ||||
|   (if exists? | ||||
|       (query-exec slc "update wiki set sitename = ?, basepage = ?, license_text = ?, license_url = ? where wikiname = ?" | ||||
|   (define exists? (query-maybe-value* "select progress from wiki where wikiname = ?" wikiname)) | ||||
|   (if (and exists? (not (sql-null? exists?))) | ||||
|       (query-exec* "update wiki set sitename = ?, basepage = ?, license_text = ?, license_url = ? where wikiname = ?" | ||||
|                   (jp "/query/general/sitename" data) | ||||
|                   (second (regexp-match #rx"/wiki/(.*)" (jp "/query/general/base" data))) | ||||
|                   (jp "/query/rightsinfo/text" data) | ||||
|                   (jp "/query/rightsinfo/url" data) | ||||
|                   wikiname) | ||||
|       (query-exec slc "insert into wiki (wikiname, progress, sitename, basepage, license_text, license_url) values (?, 1, ?, ?, ?, ?)" | ||||
|       (query-exec* "insert into wiki (wikiname, progress, sitename, basepage, license_text, license_url) values (?, 0, ?, ?, ?, ?)" | ||||
|                   wikiname | ||||
|                   (jp "/query/general/sitename" data) | ||||
|                   (second (regexp-match #rx"/wiki/(.*)" (jp "/query/general/base" data))) | ||||
|                   (jp "/query/rightsinfo/text" data) | ||||
|                   (jp "/query/rightsinfo/url" data)))) | ||||
|                   (jp "/query/rightsinfo/url" data))) | ||||
|   (jp "/query/statistics/articles" data)) | ||||
| 
 | ||||
| ;; call 1 if not yet done for that wiki | ||||
| (define (if-necessary-download-list-of-pages wikiname callback) | ||||
|   (define wiki-progress (query-maybe-value slc "select progress from wiki where wikiname = ?" wikiname)) | ||||
|   ;; done yet? | ||||
|   (unless (and (real? wiki-progress) (wiki-progress . >= . 1)) | ||||
|     ;; count total pages | ||||
|     (define dest-url | ||||
|       (format "https://~a.fandom.com/api.php?~a" | ||||
|               wikiname | ||||
|               (params->query `(("action" . "query") ("meta" . "siteinfo") ("siprop" . "statistics") ("format" . "json"))))) | ||||
|     (define num-pages (jp "/query/statistics/articles" (response-json (get dest-url)))) | ||||
|     (download-list-of-pages wikiname callback 0 num-pages #f))) | ||||
| 
 | ||||
| ;; 1. Download list of wiki pages and store in database | ||||
| (define (download-list-of-pages wikiname callback total-so-far grand-total path-with-namefrom) | ||||
|   (define url (if path-with-namefrom | ||||
|                   (format "https://~a.fandom.com~a" wikiname path-with-namefrom) | ||||
|                   (format "https://~a.fandom.com/wiki/Local_Sitemap" wikiname))) | ||||
|   (define r (get url)) | ||||
|   (define page (html->xexp (bytes->string/utf-8 (response-body r)))) | ||||
|   (define link-namefrom | ||||
|     ((query-selector (λ (t a c x) (and (eq? t 'a) | ||||
|                                        (pair? x) | ||||
|                                        (string-contains? (car x) "Next page") | ||||
|                                        (let ([href (get-attribute 'href a)] ) | ||||
|                                          (and href (string-contains? href "/wiki/Local_Sitemap"))))) | ||||
|                      page #:include-text? #t))) | ||||
|   (define row-values | ||||
|     (for/list ([link (in-producer | ||||
|                       (query-selector | ||||
|                        (λ (t a c) (eq? t 'a)) | ||||
|                        ((query-selector (λ (t a c) (has-class? "mw-allpages-chunk" a)) page))) | ||||
|                       #f)]) | ||||
|       (list wikiname (local-encoded-url->basename (get-attribute 'href (bits->attributes link))) 0))) | ||||
|   (define query-template (string-join (make-list (length row-values) "(?, ?, ?)") ", " #:before-first "insert or ignore into page (wikiname, basename, progress) values ")) | ||||
|   (apply query-exec slc query-template (flatten row-values)) | ||||
|   (define new-total (+ (length row-values) total-so-far)) | ||||
|   (callback new-total grand-total (second (last row-values))) | ||||
|   (cond | ||||
|     [link-namefrom ; repeat on the next page | ||||
|      (download-list-of-pages wikiname callback new-total grand-total (get-attribute 'href (bits->attributes link-namefrom)))] | ||||
|     [#t ; all done downloading sitemap | ||||
|      (insert-wiki-entry wikiname)])) | ||||
| 
 | ||||
| ;; 2. Download each page via API and: | ||||
| ;; * Save API response to file | ||||
| (define max-page-progress 1) | ||||
| (define (save-each-page wikiname callback) | ||||
|   ;; prepare destination folder | ||||
|   (define save-dir (build-path archive-root wikiname)) | ||||
|   (make-directory* save-dir) | ||||
|   ;; gather list of basenames to download (that aren't yet complete) | ||||
|   (define basenames (query-list slc "select basename from page where wikiname = ? and progress < ?" | ||||
|                                 wikiname max-page-progress)) | ||||
|   ;; counter of complete/incomplete basenames | ||||
|   (define already-done-count | ||||
|     (query-value slc "select count(*) from page where wikiname = ? and progress = ?" | ||||
|                  wikiname max-page-progress)) | ||||
|   (define not-done-count | ||||
|     (query-value slc "select count(*) from page where wikiname = ? and progress < ?" | ||||
|                  wikiname max-page-progress)) | ||||
|   ;; set initial progress | ||||
|   (callback already-done-count (+ already-done-count not-done-count) "") | ||||
|   ;; loop through basenames and download | ||||
|   (for ([basename basenames] | ||||
|         [i (in-naturals 1)]) | ||||
|     (define name-for-query (basename->name-for-query basename)) | ||||
|     (define dest-url | ||||
|       (format "https://~a.fandom.com/api.php?~a" | ||||
|               wikiname | ||||
|               (params->query `(("action" . "parse") | ||||
|                                ("page" . ,name-for-query) | ||||
|                                ("prop" . "text|headhtml|langlinks") | ||||
|                                ("formatversion" . "2") | ||||
|                                ("format" . "json"))))) | ||||
|     (define r (get dest-url)) | ||||
|     (define body (response-body r)) | ||||
|     (define filename (string-append basename ".json")) | ||||
|     (define save-path | ||||
|       (cond [((string-length basename) . > . 240) | ||||
|              (define key (sha1 (string->bytes/latin-1 basename))) | ||||
|              (query-exec slc "insert into special_page (wikiname, key, basename) values (?, ?, ?)" | ||||
|                          wikiname key basename) | ||||
|              (build-path save-dir (string-append key ".json"))] | ||||
|             [#t | ||||
|              (build-path save-dir (string-append basename ".json"))])) | ||||
|     (display-to-file body save-path #:exists 'replace) | ||||
|     (query-exec slc "update page set progress = 1 where wikiname = ? and basename = ?" | ||||
|                 wikiname basename) | ||||
|     (callback (+ already-done-count i) (+ already-done-count not-done-count) basename)) | ||||
|   ;; saved all pages, register that fact in the database | ||||
|   (query-exec slc "update wiki set progress = 2 where wikiname = ?" wikiname)) | ||||
| 
 | ||||
| ;; 3. Download CSS and: | ||||
| ;; * Save CSS to file | ||||
| ;; * Record style images to database | ||||
| (define (check-style-for-images wikiname path) | ||||
|   (define content (file->string path)) | ||||
|   (define urls (regexp-match* #rx"url\\(\"?'?([^)]*)'?\"?\\)" content #:match-select cadr)) | ||||
|   (for/list ([url urls] | ||||
|              #:when (not (or (equal? url "") | ||||
|                              (equal? url "'") | ||||
|                              (string-suffix? url "\"") | ||||
|                              (string-contains? url "/resources-ucp/") | ||||
|                              (string-contains? url "/fonts/") | ||||
|                              (string-contains? url "/drm_fonts/") | ||||
|  | @ -184,7 +88,7 @@ | |||
|       [(string-prefix? url "/") (format "https://~a.fandom.com~a" wikiname url)] | ||||
|       [else (raise-user-error "While calling check-style-for-images, this URL had an unknown format and couldn't be saved:" url path)]))) | ||||
| 
 | ||||
| (define (download-styles-for-wiki wikiname) | ||||
| (define (download-styles-for-wiki wikiname callback) | ||||
|   (define save-dir (build-path archive-root wikiname "styles")) | ||||
|   (make-directory* save-dir) | ||||
|   (define theme (λ (theme-name) | ||||
|  | @ -198,18 +102,137 @@ | |||
|      (theme "dark") | ||||
|      (cons (format "https://~a.fandom.com/load.php?lang=en&modules=skin.fandomdesktop.styles%7Cext.fandom.PortableInfoboxFandomDesktop.css%7Cext.fandom.GlobalComponents.CommunityHeaderBackground.css%7Cext.gadget.site-styles%2Csound-styles%7Csite.styles&only=styles&skin=fandomdesktop" wikiname) | ||||
|            (build-path save-dir "site.css")))) | ||||
|   (for ([style styles]) | ||||
|   (for ([style styles] | ||||
|         [i (in-naturals)]) | ||||
|     (callback i (length styles) "styles...") | ||||
|     (define r (get (car style))) | ||||
|     (define body (response-body r)) | ||||
|     (display-to-file body (cdr style) #:exists 'replace) | ||||
|     ;; XXX: how the HELL do I deal with @import?? would need some kind of recursion here. how will the page server know where to look up the style file to be able to serve them again? do I add another link-stylesheet tag to the main page? what about the remaining stuck @import url? | ||||
|     ) | ||||
|   (callback (length styles) (length styles) "styles...") | ||||
|   styles) | ||||
| 
 | ||||
| (define (do-step-3 wikiname) | ||||
|   (define wiki-progress (query-maybe-value slc "select progress from wiki where wikiname = ?" wikiname)) | ||||
| (define (hash->save-dir wikiname hash) | ||||
|   (build-path archive-root wikiname "images" (substring hash 0 1) (substring hash 0 2))) | ||||
| 
 | ||||
| (define (image-url->values i) | ||||
|   ;; TODO: handle case where there is multiple broken cb parameter on minecraft wiki | ||||
|   ;; TODO: ensure it still "works" with broken & on minecraft wiki | ||||
|   (define no-cb (regexp-replace #rx"\\cb=[0-9]+&?" i "")) ; remove cb url parameter which does nothing | ||||
|   (define key (regexp-replace #rx"[&?]$" no-cb "")) ; remove extra separator if necessary | ||||
|   (define hash (sha1 (string->bytes/utf-8 key))) | ||||
|   (cons key hash)) | ||||
| 
 | ||||
| 
 | ||||
| ;; 1. Download list of wiki pages and store in database, if not done yet for that wiki | ||||
| (define (if-necessary-download-list-of-pages wikiname callback) | ||||
|   (define wiki-progress (query-maybe-value* "select progress from wiki where wikiname = ?" wikiname)) | ||||
|   ;; done yet? | ||||
|   (unless (and (real? wiki-progress) (wiki-progress . >= . 1)) | ||||
|     ;; Count total pages | ||||
|     (define num-pages (insert-wiki-entry wikiname)) | ||||
|     ;; Download the entire index of pages | ||||
|     (define basenames | ||||
|       (let loop ([path-with-namefrom "/wiki/Local_Sitemap"] | ||||
|                  [basenames-previous-pages null]) | ||||
|         ;; Download the current index page | ||||
|         (define url (format "https://~a.fandom.com~a" wikiname path-with-namefrom)) | ||||
|         (define r (get url)) | ||||
|         ;; Metadata from this page (the link to the next page) | ||||
|         (define page (html->xexp (bytes->string/utf-8 (response-body r)))) | ||||
|         (define link-namefrom | ||||
|           ((query-selector (λ (t a c x) (and (eq? t 'a) | ||||
|                                              (pair? x) | ||||
|                                              (string-contains? (car x) "Next page") | ||||
|                                              (let ([href (get-attribute 'href a)] ) | ||||
|                                                (and href (string-contains? href "/wiki/Local_Sitemap"))))) | ||||
|                            page #:include-text? #t))) | ||||
|         ;; Content from this page | ||||
|         (define basenames-this-page | ||||
|           (for/list ([link (in-producer | ||||
|                             (query-selector | ||||
|                              (λ (t a c) (eq? t 'a)) | ||||
|                              ((query-selector (λ (t a c) (has-class? "mw-allpages-chunk" a)) page))) | ||||
|                             #f)]) | ||||
|             (local-encoded-url->basename (get-attribute 'href (bits->attributes link))))) | ||||
|         ;; Call the progress callback | ||||
|         (define all-basenames (append basenames-previous-pages basenames-this-page)) | ||||
|         (callback (length all-basenames) num-pages (last all-basenames)) | ||||
|         ;; Recurse to download from the next page | ||||
|         (if link-namefrom | ||||
|             (loop (get-attribute 'href (bits->attributes link-namefrom)) all-basenames) | ||||
|             all-basenames))) | ||||
|     ;; Save those pages into the database | ||||
|     ;; SQLite can have a maximum of 32766 parameters in a single query | ||||
|     (for ([slice (in-slice 32760 basenames)]) | ||||
|       (define query-template (string-join (make-list (length slice) "(?1, ?, 0)") ", " #:before-first "insert or ignore into page (wikiname, basename, progress) values ")) | ||||
|       (call-with-transaction | ||||
|        (get-slc) | ||||
|        (λ () | ||||
|          (apply query-exec* query-template wikiname slice) | ||||
|          ;; Record that we have the complete list of pages | ||||
|          (query-exec* "update wiki set progress = 1 where wikiname = ?" wikiname)))))) | ||||
| 
 | ||||
| 
 | ||||
| ;; 2. Download each page via API and: | ||||
| ;; * Save API response to file | ||||
| (define max-page-progress 1) | ||||
| (define (save-each-page wikiname callback) | ||||
|   ;; prepare destination folder | ||||
|   (define save-dir (build-path archive-root wikiname)) | ||||
|   (make-directory* save-dir) | ||||
|   ;; gather list of basenames to download (that aren't yet complete) | ||||
|   (define basenames (query-list* "select basename from page where wikiname = ? and progress < ?" | ||||
|                                 wikiname max-page-progress)) | ||||
|   ;; counter of complete/incomplete basenames | ||||
|   (define already-done-count | ||||
|     (query-value* "select count(*) from page where wikiname = ? and progress = ?" | ||||
|                  wikiname max-page-progress)) | ||||
|   (define not-done-count | ||||
|     (query-value* "select count(*) from page where wikiname = ? and progress < ?" | ||||
|                   wikiname max-page-progress)) | ||||
|   (define total-count (+ already-done-count not-done-count)) | ||||
|   ;; set initial progress | ||||
|   (callback already-done-count total-count "") | ||||
|   ;; loop through basenames and download | ||||
|   (for ([basename basenames] | ||||
|         [i (in-naturals (add1 already-done-count))]) | ||||
|     (define name-for-query (basename->name-for-query basename)) | ||||
|     (define dest-url | ||||
|       (format "https://~a.fandom.com/api.php?~a" | ||||
|               wikiname | ||||
|               (params->query `(("action" . "parse") | ||||
|                                ("page" . ,name-for-query) | ||||
|                                ("prop" . "text|headhtml|langlinks") | ||||
|                                ("formatversion" . "2") | ||||
|                                ("format" . "json"))))) | ||||
|     (define r (get dest-url)) | ||||
|     (define body (response-body r)) | ||||
|     (define filename (string-append basename ".json")) | ||||
|     (define save-path | ||||
|       (cond [((string-length basename) . > . 240) | ||||
|              (define key (sha1 (string->bytes/latin-1 basename))) | ||||
|              (query-exec* "insert into special_page (wikiname, key, basename) values (?, ?, ?)" | ||||
|                          wikiname key basename) | ||||
|              (build-path save-dir (string-append key ".json"))] | ||||
|             [#t | ||||
|              (build-path save-dir (string-append basename ".json"))])) | ||||
|     (display-to-file body save-path #:exists 'replace) | ||||
|     (query-exec* "update page set progress = 1 where wikiname = ? and basename = ?" | ||||
|                 wikiname basename) | ||||
|     (callback i total-count basename)) | ||||
|   ;; saved all pages, register that fact in the database | ||||
|   (query-exec* "update wiki set progress = 2 where wikiname = ?" wikiname)) | ||||
| 
 | ||||
| 
 | ||||
| ;; 3. Download CSS and: | ||||
| ;; * Save CSS to file | ||||
| ;; * Record style images to database | ||||
| (define (if-necessary-download-and-check-styles wikiname callback) | ||||
|   (define wiki-progress (query-maybe-value* "select progress from wiki where wikiname = ?" wikiname)) | ||||
|   (unless (and (number? wiki-progress) (wiki-progress . >= . 3)) | ||||
|     (define styles (download-styles-for-wiki wikiname)) | ||||
|     (define styles (download-styles-for-wiki wikiname callback)) | ||||
|     (define unique-image-urls | ||||
|       (remove-duplicates | ||||
|        (map image-url->values | ||||
|  | @ -217,48 +240,40 @@ | |||
|              (for/list ([style styles]) | ||||
|                (check-style-for-images wikiname (cdr style))))) | ||||
|        #:key cdr)) | ||||
|     (println unique-image-urls) | ||||
|     (for ([pair unique-image-urls]) | ||||
|       (query-exec slc "insert or ignore into image (wikiname, url, hash, ext, source, progress) values (?, ?, ?, NULL, 1, 0)" wikiname (car pair) (cdr pair))) | ||||
|     (query-exec slc "update wiki set progress = 3 where wikiname = ?" wikiname))) | ||||
|       (query-exec* "insert or ignore into image (wikiname, url, hash, ext, source, progress) values (?, ?, ?, NULL, 1, 0)" wikiname (car pair) (cdr pair))) | ||||
|     (query-exec* "update wiki set progress = 3 where wikiname = ?" wikiname))) | ||||
| 
 | ||||
| 
 | ||||
| ;; 4: From downloaded pages, record URLs of image sources and inline style images to database | ||||
| (define (hash->save-dir wikiname hash) | ||||
|   (build-path archive-root wikiname "images" (substring hash 0 1) (substring hash 0 2))) | ||||
| 
 | ||||
| (define (image-url->values i) | ||||
|   ;; TODO: handle case where there is multiple cb parameter on minecraft wiki | ||||
|   ;; TODO: ensure it still "works" with broken & on minecraft wiki | ||||
|   (define no-cb (regexp-replace #rx"\\cb=[0-9]+&?" i "")) ; remove cb url parameter which does nothing | ||||
|   (define key (regexp-replace #rx"[&?]$" no-cb "")) ; remove extra separator if necessary | ||||
|   (define hash (sha1 (string->bytes/utf-8 key))) | ||||
|   (cons key hash)) | ||||
| 
 | ||||
| (define (check-json-for-images wikiname path) | ||||
|   (define data (with-input-from-file path (λ () (read-json)))) | ||||
|   (define page (html->xexp (preprocess-html-wiki (jp "/parse/text" data)))) | ||||
|   (define tree (update-tree-wiki page wikiname)) | ||||
|   (remove-duplicates | ||||
|    (for/list ([element (in-producer | ||||
|                         (query-selector | ||||
|                          (λ (t a c) | ||||
|                            (and (eq? t 'img) | ||||
|                                 (get-attribute 'src a))) | ||||
|                          tree) | ||||
|                         #f)]) | ||||
|      (image-url->values (get-attribute 'src (bits->attributes element)))))) | ||||
|   null | ||||
|   #;(remove-duplicates | ||||
|      (for/list ([element (in-producer | ||||
|                           (query-selector | ||||
|                            (λ (t a c) | ||||
|                              (and (eq? t 'img) | ||||
|                                   (get-attribute 'src a))) | ||||
|                            tree) | ||||
|                           #f)]) | ||||
|        (image-url->values (get-attribute 'src (bits->attributes element)))))) | ||||
| 
 | ||||
| 
 | ||||
| ;; 5. Download image sources and style images according to database | ||||
| (define (save-each-image wikiname source callback) | ||||
| (define (save-each-image wikiname callback) | ||||
|   (define source (hash-ref sources 'style)) ;; TODO: download entire wiki images instead? | ||||
|   ;; gather list of basenames to download (that aren't yet complete) | ||||
|   (define rows (query-rows slc "select url, hash from image where wikiname = ? and source <= ? and progress < 1" | ||||
|   (define rows (query-rows* "select url, hash from image where wikiname = ? and source <= ? and progress < 1" | ||||
|                                 wikiname source)) | ||||
|   ;; counter of complete/incomplete basenames | ||||
|   (define already-done-count | ||||
|     (query-value slc "select count(*) from image where wikiname = ? and source <= ? and progress = 1" | ||||
|     (query-value* "select count(*) from image where wikiname = ? and source <= ? and progress = 1" | ||||
|                  wikiname source)) | ||||
|   (define not-done-count | ||||
|     (query-value slc "select count(*) from image where wikiname = ? and source <= ? and progress < 1" | ||||
|     (query-value* "select count(*) from image where wikiname = ? and source <= ? and progress < 1" | ||||
|                  wikiname source)) | ||||
|   ;; set initial progress | ||||
|   (callback already-done-count (+ already-done-count not-done-count) "") | ||||
|  | @ -269,26 +284,35 @@ | |||
|     (define url (vector-ref row 0)) | ||||
|     (define hash (vector-ref row 1)) | ||||
|     ;; check | ||||
|     (printf "~a -> ~a~n" url hash) | ||||
|     #; (printf "~a -> ~a~n" url hash) | ||||
|     (define r (get url)) | ||||
|     (define declared-type (response-headers-ref r 'content-type)) | ||||
|     (define final-type (if (equal? declared-type #"application/octet-stream") | ||||
|                            (let ([sniff-entity (message-entity (mime-analyze (response-body r)))]) | ||||
|                              (string->bytes/latin-1 (format "~a/~a" (entity-type sniff-entity) (entity-subtype sniff-entity)))) | ||||
|                            declared-type)) | ||||
|     (define ext (bytes->string/latin-1 (mime-type->ext final-type))) | ||||
|     (define ext | ||||
|       (with-handlers ([exn:fail:contract? (λ _ (error 'save-each-image "no ext found for mime type `~a` in file ~a" final-type url))]) | ||||
|         (bytes->string/latin-1 (mime-type->ext final-type)))) | ||||
|     ;; save | ||||
|     (define save-dir (hash->save-dir wikiname hash)) | ||||
|     (make-directory* save-dir) | ||||
|     (define save-path (build-path save-dir (string-append hash "." ext))) | ||||
|     (define body (response-body r)) | ||||
|     (display-to-file body save-path #:exists 'replace) | ||||
|     (query-exec slc "update image set progress = 1, ext = ? where wikiname = ? and hash = ?" | ||||
|     (query-exec* "update image set progress = 1, ext = ? where wikiname = ? and hash = ?" | ||||
|                 ext wikiname hash) | ||||
|     (callback (+ already-done-count i) (+ already-done-count not-done-count) (string-append hash "." ext))) | ||||
|   ;; TODO: saved all images, register that fact in the database | ||||
|   ) | ||||
|     (callback (+ already-done-count i) (+ already-done-count not-done-count) (string-append (substring hash 0 6) "..." ext))) | ||||
|   ;; saved all images, register that fact in the database | ||||
|   (query-exec* "update wiki set progress = 4 where wikiname = ?" wikiname)) | ||||
| 
 | ||||
| (define all-stages | ||||
|   (list | ||||
|    if-necessary-download-list-of-pages | ||||
|    save-each-page | ||||
|    if-necessary-download-and-check-styles | ||||
|    ;; check-json-for-images | ||||
|    save-each-image)) | ||||
| 
 | ||||
| (module+ test | ||||
|   (check-equal? (html->xexp "<img src=\"https://example.com/images?src=Blah.jpg&width=150\">") | ||||
|  | @ -299,11 +323,13 @@ | |||
|   #;(do-step-3 "gallowmere") | ||||
|   #;(save-each-image "gallowmere" (hash-ref sources 'style) (λ (a b c) (printf "~a/~a ~a~n" a b c))) | ||||
| 
 | ||||
|   #;(for ([wikiname (query-list slc "select wikiname from wiki")]) | ||||
|   #;(for ([wikiname (query-list* "select wikiname from wiki")]) | ||||
|       (println wikiname) | ||||
|       (insert-wiki-entry wikiname)) | ||||
| 
 | ||||
|   #;(for ([wikiname (query-list slc "select wikiname from wiki")]) | ||||
|   #;(for ([wikiname (query-list* "select wikiname from wiki")]) | ||||
|       (println wikiname) | ||||
|       (do-step-3 wikiname) | ||||
|       (save-each-image wikiname (hash-ref sources 'style) (λ (a b c) (printf "~a/~a ~a~n" a b c))))) | ||||
| 
 | ||||
| ; (for ([stage all-stages]) (stage "create" (λ (a b c) (printf "~a/~a ~a~n" a b c)))) | ||||
|  |  | |||
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