commit d0706840db66e05538f635fdacdb270ceeb8ccd0 Author: Jenga Phoenix Date: Wed May 22 01:00:40 2019 -0500 Init diff --git a/ipfs-gno.asd b/ipfs-gno.asd new file mode 100755 index 0000000..b00de27 --- /dev/null +++ b/ipfs-gno.asd @@ -0,0 +1,7 @@ +(defsystem "ipfs-gno" + :version "0.1" + :author "Jaidyn Ann " + :license "Cooperative Software License" + :depends-on ("drakma" "yason" "arnesi") + :components ((:file "package") + (:file "main"))) diff --git a/main.lisp b/main.lisp new file mode 100644 index 0000000..231f91c --- /dev/null +++ b/main.lisp @@ -0,0 +1,61 @@ +(in-package :ipfs-gno) + +(defparameter *api-host* "http://127.0.0.1:5001") + +;; STRING LIST … → (STRING/VARYING RETURN-CODE HEADER-LIST …) +(defun api-call (call arguments &key (method :get) (parameters nil) + (want-stream nil)) + (let ((call-url (string+ *api-host* "/api/v0/" call)) + (first-arg T)) + (mapcar (lambda (arg-pair) + (format t "FIRST: ~A~%" first-arg) + (if arg-pair + (progn (setq call-url + (string+ call-url (if first-arg "?" "&") + (car arg-pair) "=" (cadr arg-pair))) + (setq first-arg nil)))) + arguments) + + (drakma:http-request call-url :method method :parameters parameters + :want-stream want-stream))) + + +;; STRING :NUMBER :NUMBER → STRING +(defun cat (ipfs-path &key (offset nil) (length nil)) + "Return a string of the data at the given IPFS path." + (api-call "cat" + `(("arg" ,ipfs-path) + ,(if offset `("offset" ,offset)) + ,(if length `("length" ,length))))) + + +;; STRING PATHNAME --> NIL +(defun dl (ipfs-path out-file) + "Write an IPFS file directly to a file on the local file-system. + Non-recursive, in the case of directories. + (Thanks to this thread ♥) https://stackoverflow.com/a/12607423" + (with-open-file (out-stream out-file :direction :output + :element-type '(unsigned-byte 8) + :if-exists :overwrite :if-does-not-exist :create) + (let ((in-stream + (api-call "cat" `(("arg" ,ipfs-path)) :want-stream 'T))) + + (awhile (read-byte in-stream nil nil) + (write-byte it out-stream)) + (close in-stream)))) + + +;; PATHNAME → STRING +(defun add (file-path) + "Add a file to IPFS, return it's hash. Does not work recursively." + (gethash "Hash" + (yason:parse + (flexi-streams:octets-to-string + (api-call "add" '() :method :post + :parameters `(("file" . ,file-path))))))) + + +;; STRING-A STRING-B … STRING-N → STRING +(defun string+ (&rest strings) + "Combine an arbitrary amount of strings into a single string." + (reduce (lambda (a b) (format nil "~A~A" a b)) strings)) diff --git a/package.lisp b/package.lisp new file mode 100644 index 0000000..0f1bde3 --- /dev/null +++ b/package.lisp @@ -0,0 +1,9 @@ +(defpackage :ipfs-gno + (:use :cl :arnesi) + (:export + *api-host* + :dl + :cat + :add)) + +(in-package :ipfs-gno)