(require racket/date)
(require
net/head
- net/http-client
net/uri-codec
- net/url-string
- net/url-structs)
+ net/url)
(require (prefix-in info: "info.rkt"))
(define cached-etag-path (url->cache-etag-path u))
(define cached-lmod-path (url->cache-lmod-path u))
(log-debug "uri-download ~v into ~v" u cached-object-path)
- (match* ((url-scheme u) (url-host u) (url-port u))
- [(s h p)
- #:when (and s h)
- (define ssl? (string=? s "https"))
- (define-values (status-line headers body-input)
- ; TODO Timeout. Currently hangs on slow connections.
- (http-sendrecv
- h
- (url->string (struct-copy url u [scheme #f] [host #f]))
- #:ssl? ssl?
- #:port (cond [p p] [ssl? 443] [else 80])
- #:headers (list (format "User-Agent: ~a" user-agent))))
- (log-debug "headers: ~v" headers)
- (log-debug "status-line: ~v" status-line)
- (define status
- (string->number (second (string-split (bytes->string/utf-8 status-line)))))
- (log-debug "status: ~v" status)
- ; TODO Handle redirects
- (match status
- [200
- (let ([etag (header-get headers #"ETag")]
- [lmod (header-get headers #"Last-Modified")])
- (if (and etag
- (file-exists? cached-etag-path)
- (bytes=? etag (file->bytes cached-etag-path)))
- (log-info "ETags match, skipping the rest of ~v" (url->string u))
- (begin
- (log-info
- "Downloading the rest of ~v. ETag: ~a, Last-Modified: ~v"
- (url->string u) etag lmod)
- (make-parent-directory* cached-object-path)
- (make-parent-directory* cached-etag-path)
- (make-parent-directory* cached-lmod-path)
- (call-with-output-file cached-object-path
- (curry copy-port body-input)
- #:exists 'replace)
- (when etag
- (display-to-file etag cached-etag-path #:exists 'replace))
- (when lmod
- (display-to-file etag cached-lmod-path #:exists 'replace))))
- (close-input-port body-input))]
- [_
- (raise status)])]
- [(_ _ _)
- (log-error "Invalid URI: ~v" u)]))
+ (define-values (status-line headers body-input)
+ ; TODO Timeout. Currently hangs on slow connections.
+ (http-sendrecv/url u #:headers (list (format "User-Agent: ~a" user-agent))))
+ (log-debug "headers: ~v" headers)
+ (log-debug "status-line: ~v" status-line)
+ (define status
+ (string->number (second (string-split (bytes->string/utf-8 status-line)))))
+ (log-debug "status: ~v" status)
+ ; TODO Handle redirects
+ (match status
+ [200
+ (let ([etag (header-get headers #"ETag")]
+ [lmod (header-get headers #"Last-Modified")])
+ (if (and etag
+ (file-exists? cached-etag-path)
+ (bytes=? etag (file->bytes cached-etag-path)))
+ (log-info "ETags match, skipping the rest of ~v" (url->string u))
+ (begin
+ (log-info
+ "Downloading the rest of ~v. ETag: ~a, Last-Modified: ~v"
+ (url->string u) etag lmod)
+ (make-parent-directory* cached-object-path)
+ (make-parent-directory* cached-etag-path)
+ (make-parent-directory* cached-lmod-path)
+ (call-with-output-file cached-object-path
+ (curry copy-port body-input)
+ #:exists 'replace)
+ (when etag
+ (display-to-file etag cached-etag-path #:exists 'replace))
+ (when lmod
+ (display-to-file etag cached-lmod-path #:exists 'replace))))
+ (close-input-port body-input))]
+ [_
+ (raise status)]))
(: timeline-print (-> Out-Format (Listof Msg) Void))
(define (timeline-print out-format timeline)