[comment : (Option String)])
#:transparent)
-(struct Resp
- ([status-line : String]
- [headers : (Listof Bytes)]
- [body-input : Input-Port])
- #:transparent)
-
(: prog Prog)
(define prog
(Prog "tt" (info:#%info-lookup 'version)))
(-> Url (Listof (U Bytes String)) Input-Port
(U 'skipped-cached 'downloaded-new))) ; TODO 'ok|'error ?
(define (uri-download-from-port u headers body-input)
+ ; TODO Update message db from here? or where?
+ ; - 1st try can just be an in-memory set that gets written-to
+ ; and read-from disk as a whole.
(define u-str (url->string u))
(log-debug "uri-download-from-port ~v into ~v" u-str cached-object-path)
(define cached-object-path (url->cache-object-path u))
(channel-put timeout-chan '(error . timeout)))))
(define result-thread
(thread (λ ()
- ; XXX We timeout getting a response, but body download could
- ; also take a long time and we might want to time that out as
- ; well, but then we may end-up with partially downloaded
- ; objects. But that could happen anyway if the server drops the
- ; connection for whatever reason.
- ;
- ; Maybe that is OK once we start treating the
- ; downloaded object as an addition to the stored set of
- ; messages, rather than the final set of messages.
-
- ; TODO message db
- ; - 1st try can just be an in-memory set that gets written-to
- ; and read-from disk as a whole.
(define result
(with-handlers
; TODO Maybe name each known errno? (exn:fail:network:errno-errno e)
(http-sendrecv/url
u
#:headers (list (format "User-Agent: ~a" user-agent-str))))
- `(ok . ,(Resp status-line headers body-input))))
+ (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)
+ (let ([result
+ ; TODO Handle redirects.
+ ; TODO Should a redirect update a peer URL?
+ (match status
+ [200
+ `(ok . ,(uri-download-from-port u headers body-input))]
+ [_
+ `(error . (http-not-ok . ,status))])])
+ (close-input-port body-input)
+ result)))
(channel-put result-chan result))))
- (define result
- (sync timeout-chan
- result-chan))
+ (define result (sync timeout-chan result-chan))
(kill-thread result-thread)
(kill-thread timeout-thread)
- (match result
- [(cons 'error _)
- result]
- [(cons 'ok (Resp status-line headers body-input))
- (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. Should be within same timeout as req and body.
- (let ([result
- (match status
- [200
- `(ok . ,(uri-download-from-port u headers body-input))]
- [_
- `(error . (http . ,status))])])
- (close-input-port body-input)
- result)]))
+ result)
(: timeline-print (-> Out-Format (Listof Msg) Void))
(define (timeline-print out-format timeline)