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-rw-r--r--decoders.lisp79
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diff --git a/decoders.lisp b/decoders.lisp
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--- a/decoders.lisp
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-;;;; lazybones.decoders package.
-
-(in-package #:lazybones.decoders)
-
-;;; HELPERS
-
-(defun read-body-to-string (stream content-length)
- "Reads CONTENT-LENGTH characters from STREAM and returns a string."
- (let ((string (make-string content-length)))
- (read-sequence string stream)
- string))
-
-
-(defun binary-content-p (content-type)
- (or (alexandria:starts-with-subseq "image" content-type)
- (alexandria:starts-with-subseq "audio" content-type)
- (and (alexandria:starts-with-subseq "application" content-type)
- (not (equal content-type "application/json")))
- (alexandria:starts-with-subseq "video" content-type)))
-
-
-(defun butlast-to-string (res)
- (map 'string 'identity (butlast res)))
-
-(defun make-keyword (str)
- (read-from-string (format nil ":~a" str)))
-
-(defun write-binary-to-tmp-file (body)
- (cl-fad:with-output-to-temporary-file (out-file :element-type '(unsigned-byte 8))
- (loop :for char :across body :do (write-byte (char-int char) out-file))))
-
-;;; PLAIN TEXT DECODER
-
-(defun decode-text/plain (stream content-type content-length)
- (declare (ignore content-type))
- (read-body-to-string stream content-length))
-
-(add-decoder "text/plain" #'decode-text/plain)
-
-
-;;; JSON DECODER
-
-(defun decode-application/json (stream content-type content-length)
- "Reads LEN characters from stream and decodes them as JSON, returning a PLIST"
- (declare (ignore content-type))
- (jonathan:parse (read-body-to-string stream content-length)))
-
-(add-decoder "application/json" #'decode-application/json)
-
-
-;;; MULTIPART/FORM-DATA DECODER
-
-;; Temporarily justing the hunchentoot post-parameter feature
-(add-decoder "multipart/form-data"
- (lambda (&rest ignore)
- (declare (ignore ignore))
- (loop :for (k . v) :in (hunchentoot:post-parameters*)
- :when (and (listp v) (= 3 (length v)))
- :collect (list :name k
- :body (first v)
- :filename (second v)
- :content-type (third v))
- :collect (list :name k :body v))))
-
-;;; APPLICATION/X-WWW-FORM-URLENCODED
-
-(defun decode-application/x-www-form-urlencoded (stream content-type content-length)
- (declare (ignore content-type))
- (->> (read-body-to-string stream content-length)
- (split-sequence #\&)
- (mapcar (lambda (s) (split-sequence #\= s)))
- (as->* pairs
- (loop
- :for (key undecoded) :in pairs
- :appending (list (make-keyword key)
- (urldecode undecoded :queryp t))))))
-
-(add-decoder "application/x-www-form-urlencoded"
- #'decode-application/x-www-form-urlencoded)