mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-22 07:09:54 +00:00
(url-http-wait-for-headers-change-function): Use `when' instead of
`if' when possible.
This commit is contained in:
Magnus Henoch
parent
947ebc5fc5
commit
57babe1716
@ -1,3 +1,8 @@
|
||||
2006-11-26 Magnus Henoch <mange@freemail.hu>
|
||||
|
||||
* url-http.el (url-http-wait-for-headers-change-function): Use
|
||||
`when' instead of `if' when possible.
|
||||
|
||||
2006-11-23 Diane Murray <disumu@x3y2z1.net>
|
||||
|
||||
* url-http.el (url-http-content-length-after-change-function): Use
|
||||
|
||||
@ -928,123 +928,121 @@ the end of the document."
|
||||
url-http-response-status))
|
||||
(url-http-debug "url-http-wait-for-headers-change-function (%s)"
|
||||
(buffer-name))
|
||||
(if (not (bobp))
|
||||
(let ((end-of-headers nil)
|
||||
(old-http nil)
|
||||
(content-length nil))
|
||||
(goto-char (point-min))
|
||||
(if (and (looking-at ".*\n") ; have one line at least
|
||||
(not (looking-at "^HTTP/[1-9]\\.[0-9]")))
|
||||
;; Not HTTP/x.y data, must be 0.9
|
||||
;; God, I wish this could die.
|
||||
(setq end-of-headers t
|
||||
url-http-end-of-headers 0
|
||||
old-http t)
|
||||
(if (re-search-forward "^\r*$" nil t)
|
||||
;; Saw the end of the headers
|
||||
(progn
|
||||
(url-http-debug "Saw end of headers... (%s)" (buffer-name))
|
||||
(setq url-http-end-of-headers (set-marker (make-marker)
|
||||
(point))
|
||||
end-of-headers t)
|
||||
(url-http-clean-headers))))
|
||||
(when (not (bobp))
|
||||
(let ((end-of-headers nil)
|
||||
(old-http nil)
|
||||
(content-length nil))
|
||||
(goto-char (point-min))
|
||||
(if (and (looking-at ".*\n") ; have one line at least
|
||||
(not (looking-at "^HTTP/[1-9]\\.[0-9]")))
|
||||
;; Not HTTP/x.y data, must be 0.9
|
||||
;; God, I wish this could die.
|
||||
(setq end-of-headers t
|
||||
url-http-end-of-headers 0
|
||||
old-http t)
|
||||
(when (re-search-forward "^\r*$" nil t)
|
||||
;; Saw the end of the headers
|
||||
(url-http-debug "Saw end of headers... (%s)" (buffer-name))
|
||||
(setq url-http-end-of-headers (set-marker (make-marker)
|
||||
(point))
|
||||
end-of-headers t)
|
||||
(url-http-clean-headers)))
|
||||
|
||||
(if (not end-of-headers)
|
||||
;; Haven't seen the end of the headers yet, need to wait
|
||||
;; for more data to arrive.
|
||||
nil
|
||||
(if old-http
|
||||
(message "HTTP/0.9 How I hate thee!")
|
||||
(progn
|
||||
(url-http-parse-response)
|
||||
(mail-narrow-to-head)
|
||||
;;(narrow-to-region (point-min) url-http-end-of-headers)
|
||||
(setq url-http-transfer-encoding (mail-fetch-field
|
||||
"transfer-encoding")
|
||||
url-http-content-type (mail-fetch-field "content-type"))
|
||||
(if (mail-fetch-field "content-length")
|
||||
(setq url-http-content-length
|
||||
(string-to-number (mail-fetch-field "content-length"))))
|
||||
(widen)))
|
||||
(if url-http-transfer-encoding
|
||||
(setq url-http-transfer-encoding
|
||||
(downcase url-http-transfer-encoding)))
|
||||
(if (not end-of-headers)
|
||||
;; Haven't seen the end of the headers yet, need to wait
|
||||
;; for more data to arrive.
|
||||
nil
|
||||
(if old-http
|
||||
(message "HTTP/0.9 How I hate thee!")
|
||||
(progn
|
||||
(url-http-parse-response)
|
||||
(mail-narrow-to-head)
|
||||
;;(narrow-to-region (point-min) url-http-end-of-headers)
|
||||
(setq url-http-transfer-encoding (mail-fetch-field
|
||||
"transfer-encoding")
|
||||
url-http-content-type (mail-fetch-field "content-type"))
|
||||
(if (mail-fetch-field "content-length")
|
||||
(setq url-http-content-length
|
||||
(string-to-number (mail-fetch-field "content-length"))))
|
||||
(widen)))
|
||||
(when url-http-transfer-encoding
|
||||
(setq url-http-transfer-encoding
|
||||
(downcase url-http-transfer-encoding)))
|
||||
|
||||
(cond
|
||||
((or (= url-http-response-status 204)
|
||||
(= url-http-response-status 205))
|
||||
(url-http-debug "%d response must have headers only (%s)."
|
||||
url-http-response-status (buffer-name))
|
||||
(when (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((string= "HEAD" url-http-method)
|
||||
;; A HEAD request is _ALWAYS_ terminated by the header
|
||||
;; information, regardless of any entity headers,
|
||||
;; according to section 4.4 of the HTTP/1.1 draft.
|
||||
(url-http-debug "HEAD request must have headers only (%s)."
|
||||
(buffer-name))
|
||||
(when (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((string= "CONNECT" url-http-method)
|
||||
;; A CONNECT request is finished, but we cannot stick this
|
||||
;; back on the free connectin list
|
||||
(url-http-debug "CONNECT request must have headers only.")
|
||||
(when (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((equal url-http-response-status 304)
|
||||
;; Only allowed to have a header section. We have to handle
|
||||
;; this here instead of in url-http-parse-headers because if
|
||||
;; you have a cached copy of something without a known
|
||||
;; content-length, and try to retrieve it from the cache, we'd
|
||||
;; fall into the 'being dumb' section and wait for the
|
||||
;; connection to terminate, which means we'd wait for 10
|
||||
;; seconds for the keep-alives to time out on some servers.
|
||||
(when (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
(old-http
|
||||
;; HTTP/0.9 always signaled end-of-connection by closing the
|
||||
;; connection.
|
||||
(url-http-debug
|
||||
"Saw HTTP/0.9 response, connection closed means end of document.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-simple-after-change-function))
|
||||
((equal url-http-transfer-encoding "chunked")
|
||||
(url-http-debug "Saw chunked encoding.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-chunked-encoding-after-change-function)
|
||||
(when (> nd url-http-end-of-headers)
|
||||
(url-http-debug
|
||||
"Calling initial chunked-encoding for extra data at end of headers")
|
||||
(url-http-chunked-encoding-after-change-function
|
||||
(marker-position url-http-end-of-headers) nd
|
||||
(- nd url-http-end-of-headers))))
|
||||
((integerp url-http-content-length)
|
||||
(url-http-debug
|
||||
"Got a content-length, being smart about document end.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-content-length-after-change-function)
|
||||
(cond
|
||||
((or (= url-http-response-status 204)
|
||||
(= url-http-response-status 205))
|
||||
(url-http-debug "%d response must have headers only (%s)."
|
||||
url-http-response-status (buffer-name))
|
||||
(if (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((string= "HEAD" url-http-method)
|
||||
;; A HEAD request is _ALWAYS_ terminated by the header
|
||||
;; information, regardless of any entity headers,
|
||||
;; according to section 4.4 of the HTTP/1.1 draft.
|
||||
(url-http-debug "HEAD request must have headers only (%s)."
|
||||
(buffer-name))
|
||||
(if (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((string= "CONNECT" url-http-method)
|
||||
;; A CONNECT request is finished, but we cannot stick this
|
||||
;; back on the free connectin list
|
||||
(url-http-debug "CONNECT request must have headers only.")
|
||||
(if (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((equal url-http-response-status 304)
|
||||
;; Only allowed to have a header section. We have to handle
|
||||
;; this here instead of in url-http-parse-headers because if
|
||||
;; you have a cached copy of something without a known
|
||||
;; content-length, and try to retrieve it from the cache, we'd
|
||||
;; fall into the 'being dumb' section and wait for the
|
||||
;; connection to terminate, which means we'd wait for 10
|
||||
;; seconds for the keep-alives to time out on some servers.
|
||||
(if (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
(old-http
|
||||
;; HTTP/0.9 always signaled end-of-connection by closing the
|
||||
;; connection.
|
||||
((= 0 url-http-content-length)
|
||||
;; We got a NULL body! Activate the callback
|
||||
;; immediately!
|
||||
(url-http-debug
|
||||
"Saw HTTP/0.9 response, connection closed means end of document.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-simple-after-change-function))
|
||||
((equal url-http-transfer-encoding "chunked")
|
||||
(url-http-debug "Saw chunked encoding.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-chunked-encoding-after-change-function)
|
||||
(if (> nd url-http-end-of-headers)
|
||||
(progn
|
||||
(url-http-debug
|
||||
"Calling initial chunked-encoding for extra data at end of headers")
|
||||
(url-http-chunked-encoding-after-change-function
|
||||
(marker-position url-http-end-of-headers) nd
|
||||
(- nd url-http-end-of-headers)))))
|
||||
((integerp url-http-content-length)
|
||||
(url-http-debug
|
||||
"Got a content-length, being smart about document end.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-content-length-after-change-function)
|
||||
(cond
|
||||
((= 0 url-http-content-length)
|
||||
;; We got a NULL body! Activate the callback
|
||||
;; immediately!
|
||||
(url-http-debug
|
||||
"Got 0-length content-length, activating callback immediately.")
|
||||
(if (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((> nd url-http-end-of-headers)
|
||||
;; Have some leftover data
|
||||
(url-http-debug "Calling initial content-length for extra data at end of headers")
|
||||
(url-http-content-length-after-change-function
|
||||
(marker-position url-http-end-of-headers)
|
||||
nd
|
||||
(- nd url-http-end-of-headers)))
|
||||
(t
|
||||
nil)))
|
||||
"Got 0-length content-length, activating callback immediately.")
|
||||
(when (url-http-parse-headers)
|
||||
(url-http-activate-callback)))
|
||||
((> nd url-http-end-of-headers)
|
||||
;; Have some leftover data
|
||||
(url-http-debug "Calling initial content-length for extra data at end of headers")
|
||||
(url-http-content-length-after-change-function
|
||||
(marker-position url-http-end-of-headers)
|
||||
nd
|
||||
(- nd url-http-end-of-headers)))
|
||||
(t
|
||||
(url-http-debug "No content-length, being dumb.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-simple-after-change-function)))))
|
||||
nil)))
|
||||
(t
|
||||
(url-http-debug "No content-length, being dumb.")
|
||||
(setq url-http-after-change-function
|
||||
'url-http-simple-after-change-function)))))
|
||||
;; We are still at the beginning of the buffer... must just be
|
||||
;; waiting for a response.
|
||||
(url-http-debug "Spinning waiting for headers..."))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user