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authorLudovic Courtès <ludo@gnu.org>2012-09-12 23:47:49 +0200
committerLudovic Courtès <ludo@gnu.org>2012-09-12 23:47:49 +0200
commit457dd86d66bc1ee1ee13a76d03792396fb69ee34 (patch)
treef652df780af8245b51b0363545f938aa40586950
parentfb585745adcd2935b179db1ce847318ec3724c4e (diff)
Add (guix ftp) and companion modules.
* guix/ftp-client.scm, guix/ftp.scm, guix/build/ftp.scm: New files. * Makefile.am (MODULES): Add them. * distro/base.scm (libffi): Use `ftp-fetch'.
-rw-r--r--Makefile.am3
-rw-r--r--distro/base.scm7
-rw-r--r--guix/build/ftp.scm48
-rw-r--r--guix/ftp-client.scm224
-rw-r--r--guix/ftp.scm49
5 files changed, 328 insertions, 3 deletions
diff --git a/Makefile.am b/Makefile.am
index 636fd39fe8..fd1e004911 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -24,9 +24,12 @@ MODULES = \
guix/build-system.scm \
guix/build-system/gnu.scm \
guix/build-system/trivial.scm \
+ guix/ftp.scm \
+ guix/ftp-client.scm \
guix/http.scm \
guix/store.scm \
guix/build/gnu-build-system.scm \
+ guix/build/ftp.scm \
guix/build/http.scm \
guix/build/utils.scm \
guix/packages.scm \
diff --git a/distro/base.scm b/distro/base.scm
index c0c51ff0bc..3790f48bfd 100644
--- a/distro/base.scm
+++ b/distro/base.scm
@@ -19,6 +19,7 @@
(define-module (distro base)
#:use-module (distro)
#:use-module (guix packages)
+ #:use-module (guix ftp)
#:use-module (guix http)
#:use-module (guix build-system gnu)
#:use-module (guix build-system trivial)
@@ -1138,9 +1139,9 @@ extensible. It supports many SRFIs.")
(name "libffi")
(version "3.0.9")
(source (origin
- (method http-fetch)
- (uri ;; FIXME: should be ftp://
- (string-append "http://sourceware.org/pub/libffi/"
+ (method ftp-fetch)
+ (uri
+ (string-append "ftp://sourceware.org/pub/libffi/"
name "-" version ".tar.gz"))
(sha256
(base32
diff --git a/guix/build/ftp.scm b/guix/build/ftp.scm
new file mode 100644
index 0000000000..17486953c2
--- /dev/null
+++ b/guix/build/ftp.scm
@@ -0,0 +1,48 @@
+;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*-
+;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of Guix.
+;;;
+;;; Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix build ftp)
+ #:use-module (guix ftp-client)
+ #:use-module (guix build utils)
+ #:use-module (web uri)
+ #:export (ftp-fetch))
+
+;;; Commentary:
+;;;
+;;; Fetch data such as tarballs over FTP (builder-side code).
+;;;
+;;; Code:
+
+(define (ftp-fetch url file)
+ "Fetch data from URL and write it to FILE. Return FILE on success."
+
+ (setvbuf (current-output-port) _IOLBF)
+ (format #t "starting FTP download of `~a' from `~a'...~%" file url)
+ (let* ((uri (string->uri url))
+ (conn (ftp-open (uri-host uri)))
+ (in (ftp-retr conn (basename (uri-path uri))
+ (dirname (uri-path uri)))))
+ (call-with-output-file file
+ (lambda (out)
+ ;; TODO: Show a progress bar.
+ (dump-port in out)))
+
+ (ftp-close conn))
+ file)
+
+;;; ftp.scm ends here
diff --git a/guix/ftp-client.scm b/guix/ftp-client.scm
new file mode 100644
index 0000000000..220419734f
--- /dev/null
+++ b/guix/ftp-client.scm
@@ -0,0 +1,224 @@
+;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*-
+;;; Copyright (C) 2010, 2011, 2012 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of Guix.
+;;;
+;;; Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix ftp-client)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-9)
+ #:use-module (srfi srfi-11)
+ #:use-module (srfi srfi-26)
+ #:use-module (srfi srfi-31)
+ #:use-module (rnrs io ports)
+ #:use-module (rnrs bytevectors)
+ #:use-module (ice-9 match)
+ #:use-module (ice-9 regex)
+ #:use-module (ice-9 rdelim)
+ #:export (ftp-connection?
+ ftp-connection-addrinfo
+
+ ftp-open
+ ftp-close
+ ftp-chdir
+ ftp-list
+ ftp-retr))
+
+;;; Commentary:
+;;;
+;;; Simple FTP client (RFC 959).
+;;;
+;;; Code:
+
+;; TODO: Use SRFI-3{4,5} error conditions.
+
+(define-record-type <ftp-connection>
+ (%make-ftp-connection socket addrinfo)
+ ftp-connection?
+ (socket ftp-connection-socket)
+ (addrinfo ftp-connection-addrinfo))
+
+(define %ftp-ready-rx
+ (make-regexp "^([0-9]{3}) (.+)$"))
+
+(define (%ftp-listen port)
+ (let loop ((line (read-line port)))
+ (cond ((eof-object? line) (values line #f))
+ ((regexp-exec %ftp-ready-rx line)
+ =>
+ (lambda (match)
+ (values (string->number (match:substring match 1))
+ (match:substring match 2))))
+ (else
+ (loop (read-line port))))))
+
+(define (%ftp-command command expected-code port)
+ (format port "~A~A~A" command (string #\return) (string #\newline))
+ (let-values (((code message) (%ftp-listen port)))
+ (if (eqv? code expected-code)
+ message
+ (throw 'ftp-error port command code message))))
+
+(define (%ftp-login user pass port)
+ (let ((command (string-append "USER " user (string #\newline))))
+ (display command port)
+ (let-values (((code message) (%ftp-listen port)))
+ (case code
+ ((230) #t)
+ ((331) (%ftp-command (string-append "PASS " pass) 230 port))
+ (else (throw 'ftp-error port command code message))))))
+
+(define (ftp-open host)
+ (catch 'getaddrinfo-error
+ (lambda ()
+ (let* ((ai (car (getaddrinfo host "ftp")))
+ (s (socket (addrinfo:fam ai) (addrinfo:socktype ai)
+ (addrinfo:protocol ai))))
+ (connect s (addrinfo:addr ai))
+ (setvbuf s _IOLBF)
+ (let-values (((code message) (%ftp-listen s)))
+ (if (eqv? code 220)
+ (begin
+ ;(%ftp-command "OPTS UTF8 ON" 200 s)
+ (%ftp-login "anonymous" "ludo@example.com" s)
+ (%make-ftp-connection s ai))
+ (begin
+ (format (current-error-port) "FTP to `~a' failed: ~A: ~A~%"
+ host code message)
+ (close s)
+ #f)))))
+ (lambda (key errcode)
+ (format (current-error-port) "failed to resolve `~a': ~a~%"
+ host (gai-strerror errcode))
+ #f)))
+
+(define (ftp-close conn)
+ (close (ftp-connection-socket conn)))
+
+(define (ftp-chdir conn dir)
+ (%ftp-command (string-append "CWD " dir) 250
+ (ftp-connection-socket conn)))
+
+(define (ftp-pasv conn)
+ (define %pasv-rx
+ (make-regexp "([0-9]+),([0-9]+),([0-9]+),([0-9]+),([0-9]+),([0-9]+)"))
+
+ (let ((message (%ftp-command "PASV" 227 (ftp-connection-socket conn))))
+ (cond ((regexp-exec %pasv-rx message)
+ =>
+ (lambda (match)
+ (+ (* (string->number (match:substring match 5)) 256)
+ (string->number (match:substring match 6)))))
+ (else
+ (throw 'ftp-error conn "PASV" 227 message)))))
+
+(define (address-with-port sa port)
+ "Return a socket-address object based on SA, but with PORT."
+ (let ((fam (sockaddr:fam sa))
+ (addr (sockaddr:addr sa)))
+ (cond ((= fam AF_INET)
+ (make-socket-address fam addr port))
+ ((= fam AF_INET6)
+ (make-socket-address fam addr port
+ (sockaddr:flowinfo sa)
+ (sockaddr:scopeid sa)))
+ (else #f))))
+
+(define* (ftp-list conn #:optional directory)
+ (if directory
+ (ftp-chdir conn directory))
+
+ (let* ((port (ftp-pasv conn))
+ (ai (ftp-connection-addrinfo conn))
+ (s (socket (addrinfo:fam ai) (addrinfo:socktype ai)
+ (addrinfo:protocol ai))))
+ (connect s (address-with-port (addrinfo:addr ai) port))
+ (setvbuf s _IOLBF)
+
+ (dynamic-wind
+ (lambda () #t)
+ (lambda ()
+ (%ftp-command "LIST" 150 (ftp-connection-socket conn))
+
+ (let loop ((line (read-line s))
+ (result '()))
+ (cond ((eof-object? line) (reverse result))
+ ((regexp-exec %ftp-ready-rx line)
+ =>
+ (lambda (match)
+ (let ((code (string->number (match:substring match 1))))
+ (if (= 126 code)
+ (reverse result)
+ (throw 'ftp-error conn "LIST" code)))))
+ (else
+ (loop (read-line s)
+ (match (reverse (string-tokenize line))
+ ((file _ ... permissions)
+ (let ((type (case (string-ref permissions 0)
+ ((#\d) 'directory)
+ (else 'file))))
+ (cons (list file type) result)))
+ ((file _ ...)
+ (cons (cons file 'file) result))))))))
+ (lambda ()
+ (close s)
+ (let-values (((code message) (%ftp-listen (ftp-connection-socket conn))))
+ (or (eqv? code 226)
+ (throw 'ftp-error conn "LIST" code message)))))))
+
+(define* (ftp-retr conn file #:optional directory)
+ "Retrieve FILE from DIRECTORY (or, if omitted, the current directory) from
+FTP connection CONN. Return a binary port to that file. The returned port
+must be closed before CONN can be used for other purposes."
+ (if directory
+ (ftp-chdir conn directory))
+
+ ;; Ask for "binary mode".
+ (%ftp-command "TYPE I" 200 (ftp-connection-socket conn))
+
+ (let* ((port (ftp-pasv conn))
+ (ai (ftp-connection-addrinfo conn))
+ (s (with-fluids ((%default-port-encoding #f))
+ (socket (addrinfo:fam ai) (addrinfo:socktype ai)
+ (addrinfo:protocol ai)))))
+ (define (terminate)
+ (close s)
+ (let-values (((code message) (%ftp-listen (ftp-connection-socket conn))))
+ (or (eqv? code 226)
+ (throw 'ftp-error conn "LIST" code message))))
+
+ (connect s (address-with-port (addrinfo:addr ai) port))
+ (setvbuf s _IOLBF)
+
+ (%ftp-command (string-append "RETR " file)
+ 150 (ftp-connection-socket conn))
+
+ (make-custom-binary-input-port "FTP RETR port"
+ (rec (read! bv start count)
+ (match (get-bytevector-n! s bv
+ start count)
+ ((? eof-object?) 0)
+ (0
+ ;; Nothing available yet, so try
+ ;; again. This is important because
+ ;; the return value of `read!' makes
+ ;; it impossible to distinguish
+ ;; between "not yet" and "EOF".
+ (read! bv start count))
+ (read read)))
+ #f #f ; no get/set position
+ terminate)))
+
+;;; ftp-client.scm ends here
diff --git a/guix/ftp.scm b/guix/ftp.scm
new file mode 100644
index 0000000000..79bae6ece6
--- /dev/null
+++ b/guix/ftp.scm
@@ -0,0 +1,49 @@
+;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*-
+;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of Guix.
+;;;
+;;; Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with Guix. If not, see <ftp://www.gnu.org/licenses/>.
+
+(define-module (guix ftp)
+ #:use-module (guix derivations)
+ #:use-module (guix utils)
+ #:export (ftp-fetch))
+
+;;; Commentary:
+;;;
+;;; Produce fixed-output derivations with data fetched over FTP.
+;;;
+;;; Code:
+
+(define* (ftp-fetch store url hash-algo hash
+ #:optional name
+ #:key (system (%current-system)))
+ "Return the path of a fixed-output derivation in STORE that fetches URL,
+which is expected to have hash HASH of type HASH-ALGO (a symbol). By
+default, the file name is the base name of URL; optionally, NAME can specify
+a different file name."
+ (define builder
+ `(begin
+ (use-modules (guix build ftp))
+ (ftp-fetch ,url %output)))
+
+ (build-expression->derivation store (or name (basename url)) system
+ builder '()
+ #:hash-algo hash-algo
+ #:hash hash
+ #:modules '((guix ftp-client)
+ (guix build ftp)
+ (guix build utils))))
+;;; ftp.scm ends here