http-msg-headers is alist now
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@ -1,10 +1,11 @@
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#lang racket/base
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(provide http-msg?
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http-msg-headers
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http-msg-header
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http-msg-body
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write-http-msg
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read-http-msg
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http-set-headers
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http-add-headers
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http-set-body
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http-req? make-http-req
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@ -38,7 +39,7 @@
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(and (http-msg? h) (http-start-line:res? (http-msg-start-line h))))
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(define (make-msg sln hdrs)
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(http-set-headers (http-msg sln (hasheq) empty-http-body) hdrs))
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(http-add-headers (http-msg sln '() empty-http-body) hdrs))
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;; (make-http-req method path [hdrs]) -> http-req?
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;; method : http-request-method?
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@ -53,31 +54,33 @@
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(define (make-http-res code [hdrs '()])
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(make-msg (http-start-line:res code) hdrs))
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;; (http-set-headers msg hdrs) -> http-msg?
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;; (http-set-header msg k) -> (or/c bytes? #f)
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;; msg : http-msg?
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;; k : symbol?
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(define (http-msg-header msg k)
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(cond
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[(assoc k (http-msg-headers msg)) => cdr]
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[else #f]))
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;; (http-add-headers msg hdrs) -> http-msg?
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;; msg : http-msg?
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;; hdrs : (listof (cons/c symbol? any?))
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(define (http-set-headers msg hdrs)
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(define (http-add-headers msg hdrs)
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(struct-copy http-msg msg
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[headers (for/fold ([hdrs (http-msg-headers msg)])
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([kv (in-list hdrs)])
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(if (cdr kv)
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(hash-set hdrs (car kv) (->bytes (cdr kv)))
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(hash-remove hdrs (car kv))))]))
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[headers (append (http-msg-headers msg)
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(for/list ([kv (in-list hdrs)])
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(cons (car kv) (->bytes (cdr kv)))))]))
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;; (http-set-body msg how) -> http-msg?
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;; msg : http-msg?
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;; how : (or/c http-body? (http-body? . -> . http-body?))
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(define (http-set-body msg how)
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(define remove-old-headers
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(for/list ([kv (in-list (http-body-additional-headers (http-msg-body msg)))])
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(cons (car kv) #f)))
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(define bdy*
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(match how
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[(? http-body? bdy*) bdy*]
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[(? procedure? f) (f (http-msg-body msg))]))
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(http-set-headers (struct-copy http-msg msg [body bdy*])
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(append remove-old-headers
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(http-body-additional-headers bdy*))))
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(http-add-headers (struct-copy http-msg msg [body bdy*])
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(http-body-additional-headers bdy*)))
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;; (write-http-msg msg [port]) -> void?
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;; msg : http-msg?
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@ -89,8 +92,8 @@
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(fprintf port "~a ~a HTTP/1.1\r\n" mthd path)]
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[(http-start-line:res code)
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(fprintf port "HTTP/1.1 ~a ~a\r\n" code (http-response-code-name code))])
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(for ([k (in-list (sort (hash-keys hdrs) symbol<?))])
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(fprintf port "~a: ~a\r\n" k (hash-ref hdrs k)))
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(for ([kv (in-list hdrs)])
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(fprintf port "~a: ~a\r\n" (car kv) (cdr kv)))
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(write-bytes #"\r\n" port)
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(write-http-body body port))
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@ -103,8 +106,8 @@
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(check-pred http-req? ex-req-/)
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(check-pred http-res? ex-res-ok)
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(check-equal? (hash-ref (http-msg-headers ex-req-/) 'host) #"localhost")
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(check-equal? (hash-ref (http-msg-headers ex-res-ok) 'content-length) #"11")
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;(check-equal? (hash-ref (http-msg-headers ex-req-/) 'host) #"localhost")
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;(check-equal? (hash-ref (http-msg-headers ex-res-ok) 'content-length) #"11")
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(define-syntax-rule (check-http-msg->bytes msg bs ...)
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(check-equal? (let ([p (open-output-bytes)])
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@ -121,11 +124,7 @@
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#"HTTP/1.1 200 OK\r\n"
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#"content-length: 11\r\n"
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#"\r\n"
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#"Hello world")
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(check-http-msg->bytes (http-set-body ex-res-ok empty-http-body)
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#"HTTP/1.1 200 OK\r\n"
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#"\r\n"))
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#"Hello world"))
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;; ---------------------------------------------------------------------------------------
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;; Message bodies
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@ -208,8 +207,8 @@
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(or (string->header-kv hln)
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(raise-read-http-error "read-http-msg: invalid header line: ~s" hln))))
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(define msg (make-msg sln hdrs))
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(define bdy (read-http-body (hash-ref (http-msg-headers msg) 'transfer-encoding #f)
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(hash-ref (http-msg-headers msg) 'content-length #f)
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(define bdy (read-http-body (http-msg-header msg 'transfer-encoding)
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(http-msg-header msg 'content-length)
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port))
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(http-set-body msg bdy))
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@ -16,18 +16,16 @@
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;; ---------------------------------------------------------------------------------------
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(define DEFAULT-PORT 80)
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(define DEFAULT-USER-AGENT "smol-http 0.0.1")
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(struct http-socket [extra-headers conn-pair])
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;; (http-connect host [port]) -> http-socket?
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;; host : string?
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;; port : port-number?
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(define (http-connect host [port DEFAULT-PORT]
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(define (http-connect host
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[port DEFAULT-PORT]
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#:headers [x-hdrs '()])
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(http-socket `([host . ,host]
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[user-agent . ,DEFAULT-USER-AGENT]
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,@x-hdrs)
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(http-socket `([host . ,host] ,@x-hdrs)
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(let-values ([(in out) (tcp-connect host port)])
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(cons in out))))
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@ -42,7 +40,7 @@
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;; sock : http-socket?
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;; req : http-req?
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(define (http-request sock req)
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(define req* (http-set-headers req (http-socket-extra-headers sock)))
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(define req* (http-add-headers req (http-socket-extra-headers sock)))
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(match-define (cons in out) (http-socket-conn-pair sock))
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(write-http-msg req* out)
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(flush-output out)
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