Bug#888046: devscripts: Support signatures against uncompressed tarballs

2018-01-23 Thread Vagrant Cascadian
On 2018-01-23, Osamu Aoki wrote:
> I am in a good mood to do my user support duty :-)  So let me show.

Thanks!


> On Mon, Jan 22, 2018 at 01:24:20PM -0800, Vagrant Cascadian wrote:
>> There are a number of projects hosted at kernel.org that use the
>> kup-client utility to handle uploads. While it may upload a signature to
>> verify the uploaded tarballs, those signatures are against the
>> uncompressed tarball, rather than the compressed tarballs.
>> 
>> For example, for dtc version 1.4.6, there is:
>> 
>>   https://www.kernel.org/pub/software/utils/dtc/
>> 
>>   dtc-1.4.6.tar.gz
>>   dtc-1.4.6.tar.sign
>>   dtc-1.4.6.tar.xz
>> 
>> I can download either .tar.gz or .tar.xz, decompress them, and then use
>> the .tar.sign to verify it, but I don't see any obvious way to do this
>> From debian/watch.


> The obvious way is to read the manpage of uscan. ... many ways but
> something along

I've read the uscan manpage quite a number of times, but even after
using uscan for well over a decade and reading the manpage many times
over the years, nothing really comes across as obvious. So there's a
difference between reading the fine manual and comprehending
it.

Fortunately, It's one of those things I get working once for a package
and infrequently need to update it, so that's good.


And yet...

> version=4
> opts="pgpmode=mangle, pgpsigurlmangle=s%tar\..z$%tar\.sign%" \
> https://www.kernel.org/pub/software/utils/dtc/ \
>   @PACKAGE@@ANY_VERSION@@ARCHIVE_EXT@ \
>   debian uupdate

Thanks for the suggestion...

with debian/watch:

  version=4
  opts="pgpmode=mangle, pgpsigurlmangle=s%tar\..z$%tar\.sign%" \
  https://www.kernel.org/pub/software/utils/dtc/ \
dtc-@ANY_VERSION@@ARCHIVE_EXT@ \
debian uupdate

Using @PACKAGE@ didn't work because of upstream is named differently
(device-tree-compiler vs. dtc).

But even with that fixed/worked around:

  uscan: Newest version of device-tree-compiler on remote site is 1.4.6,
  local version is 1.4.5
  uscan:=> Newer package available from
https://www.kernel.org/pub/software/utils/dtc/dtc-1.4.6.tar.xz
  gpgv: Signature made Tue Jan  2 22:12:20 2018 PST
  gpgv:using RSA key
  75F46586AE61A66CC44E87DC6C38CACA20D9B392
  gpgv: BAD signature from "David Gibson "
  uscan die: OpenPGP signature did not verify.


If I manually take the files that uscan downloaded and verify them like
so:

  $ xz -d dtc-1.4.6.tar.xz
  $ gpg --verify $ gpg --verify dtc-1.4.6.tar.xz.n dtc-1.4.6.tar
  gpg: Signature made Tue Jan  2 22:12:20 2018 PST
  gpg:using RSA key
75F46586AE61A66CC44E87DC6C38CACA20D9B392
  gpg: Good signature from "David Gibson "
[unknown]
  gpg: aka "David Gibson (kernel.org) "
[unknown]
  gpg: aka "David Gibson (Red Hat) "
[unknown]
  gpg: aka "David Gibson (ozlabs.org)
" [unknown]
  gpg: WARNING: This key is not certified with a trusted signature!
  gpg:  There is no indication that the signature belongs to the
owner.
  Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392


I am fairly certain this is because the signature is not against the
.tar.xz, but against the uncompressed tarball.

Does uscan (attempt to) decompress the tarball before verifying the
signature? If not, I don't see how this could possibly work; in fact, if
it did, it would be a serious security bug, as the signature is against
the uncompressed tarball.


>> I'm also not sure the Debian archive supports uploading a signature file
>> against a file that isn't included in the distribution, so maybe this
>> isn't really an issue worth handling in uscan...
>
> That is not a uscan bug.  I as the primary uscan committer want to hear
> your experience.  Did you try?  If you find out the answer, please let
> me know what shall be done.

I haven't tried because I haven't yet figured out a way to automate the
verification of the signature (short of writing something entirely
outside of uscan).


live well,
  vagrant


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[devscripts] 01/01: python3 migration: pylint -> pylint3

2018-01-23 Thread Osamu Aoki
This is an automated email from the git hooks/post-receive script.

osamu pushed a commit to branch master
in repository devscripts.

commit b17add3d88bbcd46796b6d842a9c661271607786
Author: Osamu Aoki 
Date:   Tue Jan 23 23:50:29 2018 +0900

python3 migration: pylint -> pylint3

Signed-off-by: Osamu Aoki 
---
 debian/control | 2 +-
 scripts/devscripts/test/test_pylint.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/debian/control b/debian/control
index 843479d..d62134b 100644
--- a/debian/control
+++ b/debian/control
@@ -27,7 +27,7 @@ Build-Depends: bash-completion,
perl:any,
pkg-config,
po4a,
-   pylint ,
+   pylint3 ,
python3-all:any,
python3-apt ,
python3-debian ,
diff --git a/scripts/devscripts/test/test_pylint.py 
b/scripts/devscripts/test/test_pylint.py
index 3671725..33b0b9c 100644
--- a/scripts/devscripts/test/test_pylint.py
+++ b/scripts/devscripts/test/test_pylint.py
@@ -40,7 +40,7 @@ class PylintTestCase(unittest.TestCase):
 if 'python' in f.readline():
 files.append(script)
 f.close()
-cmd = ['pylint', '--rcfile=devscripts/test/pylint.conf', '-E',
+cmd = ['pylint3', '--rcfile=devscripts/test/pylint.conf', '-E',
'--include-ids=y', '--'] + files
 process = subprocess.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, close_fds=True)

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[devscripts] branch master updated (240cae9 -> b17add3)

2018-01-23 Thread Osamu Aoki
This is an automated email from the git hooks/post-receive script.

osamu pushed a change to branch master
in repository devscripts.

  from  240cae9   uscan: test scripts migrate to python3
   new  b17add3   python3 migration: pylint -> pylint3

The 1 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 debian/control | 2 +-
 scripts/devscripts/test/test_pylint.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

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Re: Good but ... mk-origtargz Allow more files to be deleted than can fit inside argv (`getconf ARG_MAX`)

2018-01-23 Thread Ximin Luo
Osamu Aoki:
> Hi,
> 
> [..]
> 
> This looks a reasonable patch.  But I don't know why you chose
> 16384=0x400 as the max figure.
> 
> Following your comment, I tried on my local machine
> $ getconf ARG_MAX
> 2097152
> 
> This is bigger than 16384.
> 
> If this is different on different system, why not dynamically check and
> set it with some safety margin like `getconf ARG_MAX` - 16 etc.?
> 

Hi Osamu, ARG_MAX is measured in bytes, not number of arguments.

I calculated 16384 as 2M / 128, 128 being a generously-high estimated value for 
"average path length" in debian packages.

I agree it would be clearer to replace 16384 with `getconf ARG_MAX / 
AV_PATH_LENGTH_EST` and define AV_PATH_LENGTH_EST = 128 near the top, but my 
perl knowledge is very basic and I wasn't sure of the best way to shell out to 
another program.

X

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Re: Good but ... mk-origtargz Allow more files to be deleted than can fit inside argv (`getconf ARG_MAX`)

2018-01-23 Thread Mattia Rizzolo
On Tue, Jan 23, 2018 at 10:58:53PM +0900, Osamu Aoki wrote:
> This looks a reasonable patch.  But I don't know why you chose
> 16384=0x400 as the max figure.
> 
> Following your comment, I tried on my local machine
> $ getconf ARG_MAX
> 2097152
> 
> This is bigger than 16384.
> 
> If this is different on different system, why not dynamically check and
> set it with some safety margin like `getconf ARG_MAX` - 16 etc.?

Related lines from IRC:

Jan 13 21:39:31    infinity0: why a magic number in the 
mk-origtargz patch?
Jan 13 21:43:10(instead of running a getconf and getting the 
value and use it, I suppose)
Jan 13 21:45:38(and then doing some computation to turn number 
in something usable)
Jan 13 21:50:07  jamessan[m]: it's `getconf ARG_MAX` / 128 which 
i felt was a reasonable path length for source filenames
Jan 13 21:50:33  and worked in practise for me (larger values 
like 3 broke)
Jan 13 21:56:52infinity0: yes, but why not detecting it at 
runtime (and a comment explaining why 128 is better than NAME_MAX=255)
Jan 13 21:57:09  because it would involve more perl code


So I agree.  Please don't merge that as it is until somebody does what's
written here ↑.

-- 
regards,
Mattia Rizzolo

GPG Key: 66AE 2B4A FCCF 3F52 DA18  4D18 4B04 3FCD B944 4540  .''`.
more about me:  https://mapreri.org : :'  :
Launchpad user: https://launchpad.net/~mapreri  `. `'`
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Bug#888046: marked as done (devscripts: Support signatures against uncompressed tarballs)

2018-01-23 Thread Mattia Rizzolo
On Tue, Jan 23, 2018, Osamu Aoki wrote:
> > I'm also not sure the Debian archive supports uploading a signature file
> > against a file that isn't included in the distribution, so maybe this
> > isn't really an issue worth handling in uscan...
> 
> That is not a uscan bug.  I as the primary uscan committer want to hear
> your experience.  Did you try?  If you find out the answer, please let
> me know what shall be done.

I have the answer for you: the Debian archive doesn't even check that
the uploaded .asc is an actual signature.  IIRC it only does a check on
the filename (to assure that you are uploading something that is related
to an already known file), but nothing else.  That also means that it
doesn't actually performe a signature check either.

-- 
regards,
Mattia Rizzolo

GPG Key: 66AE 2B4A FCCF 3F52 DA18  4D18 4B04 3FCD B944 4540  .''`.
more about me:  https://mapreri.org : :'  :
Launchpad user: https://launchpad.net/~mapreri  `. `'`
Debian QA page: https://qa.debian.org/developer.php?login=mattia  `-


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[devscripts] 01/01: uscan: test scripts migrate to python3

2018-01-23 Thread Osamu Aoki
This is an automated email from the git hooks/post-receive script.

osamu pushed a commit to branch master
in repository devscripts.

commit 240cae9a19c5532ab418bc63fcaca5231de1a470
Author: Osamu Aoki 
Date:   Tue Jan 23 23:37:48 2018 +0900

uscan: test scripts migrate to python3

Signed-off-by: Osamu Aoki 
---
 test/test_uscan   |  2 +-
 test/test_uscan_mangle|  2 +-
 test/uscan/server-head.py | 14 +++---
 test/uscan/server.py  |  8 
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/test/test_uscan b/test/test_uscan
index 7fafd12..944c014 100755
--- a/test/test_uscan
+++ b/test/test_uscan
@@ -55,7 +55,7 @@ spawnHttpServer(){
 (
mkdir -p $TMPDIR/repo
cd $TMPDIR/repo
-   python "$test_dir/uscan/server.py" &
+   python3 "$test_dir/uscan/server.py" &
echo $! > pid
while ! [ -s port ]; do
:
diff --git a/test/test_uscan_mangle b/test/test_uscan_mangle
index 05f1dfc..9afdabb 100755
--- a/test/test_uscan_mangle
+++ b/test/test_uscan_mangle
@@ -97,7 +97,7 @@ spawnHttpServer(){
USCAN_HTTP_SERVER=${USCAN_HTTP_SERVER:-server.py}
mkdir -p $TMPDIR/$REPOPATH
cd $TMPDIR/$REPOPATH
-   python "$test_dir/uscan/$USCAN_HTTP_SERVER" 2>log &
+   python3 "$test_dir/uscan/$USCAN_HTTP_SERVER" 2>log &
echo $! > pid
while ! [ -s port ]; do
:
diff --git a/test/uscan/server-head.py b/test/uscan/server-head.py
index 3d1c796..13daf4d 100644
--- a/test/uscan/server-head.py
+++ b/test/uscan/server-head.py
@@ -1,16 +1,16 @@
-#!/usr/bin/python
-import BaseHTTPServer
-import SimpleHTTPServer
+#!/usr/bin/python3
+import http.server
+from http.server import SimpleHTTPRequestHandler
 import logging
 
-class GetHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
+class GetHandler(SimpleHTTPRequestHandler):
 def do_GET(self):
-   logging.error(self.headers)
-SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET(self)
+logging.error(self.headers)
+SimpleHTTPRequestHandler.do_GET(self)
 
 def test():
 Handler = GetHandler
-httpd = BaseHTTPServer.HTTPServer(('', 0), Handler)
+httpd = http.server.HTTPServer(('', 0), Handler)
 
 sa = httpd.socket.getsockname()
 with open('port', 'w') as f:
diff --git a/test/uscan/server.py b/test/uscan/server.py
index 7309288..b9cf832 100644
--- a/test/uscan/server.py
+++ b/test/uscan/server.py
@@ -1,10 +1,10 @@
-#!/usr/bin/python
-import BaseHTTPServer
-from SimpleHTTPServer import SimpleHTTPRequestHandler
+#!/usr/bin/python3
+import http.server
+from http.server import SimpleHTTPRequestHandler
 
 def test():
 SimpleHTTPRequestHandler.protocol_version='HTTP/1.0'
-httpd = BaseHTTPServer.HTTPServer(('', 0), SimpleHTTPRequestHandler)
+httpd = http.server.HTTPServer(('', 0), SimpleHTTPRequestHandler)
 
 sa = httpd.socket.getsockname()
 with open('port', 'w') as f:

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[devscripts] branch master updated (14834f2 -> 240cae9)

2018-01-23 Thread Osamu Aoki
This is an automated email from the git hooks/post-receive script.

osamu pushed a change to branch master
in repository devscripts.

  from  14834f2   uscan: changelog update
   new  240cae9   uscan: test scripts migrate to python3

The 1 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 test/test_uscan   |  2 +-
 test/test_uscan_mangle|  2 +-
 test/uscan/server-head.py | 14 +++---
 test/uscan/server.py  |  8 
 4 files changed, 13 insertions(+), 13 deletions(-)

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Good but ... mk-origtargz Allow more files to be deleted than can fit inside argv (`getconf ARG_MAX`)

2018-01-23 Thread Osamu Aoki
Hi,

On Sat, Jan 13, 2018 at 04:23:34PM +, Ximin Luo wrote:
> This is an automated email from the git hooks/post-receive script.
> 
> infinity0 pushed a commit to branch pu/mk-origtargz-argmax
> in repository devscripts.
> 
> commit 3fa9a36bb4f352c07a3537cb597aaf734ce936f1
> Author: Ximin Luo 
> Date:   Sat Jan 13 17:22:02 2018 +0100
> 
> Allow more files to be deleted than can fit inside argv (`getconf 
> ARG_MAX`)
> ---
>  scripts/mk-origtargz.pl | 12 +++-
>  1 file changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/scripts/mk-origtargz.pl b/scripts/mk-origtargz.pl
> index 4299b93..4533899 100644
> --- a/scripts/mk-origtargz.pl
> +++ b/scripts/mk-origtargz.pl
> @@ -571,11 +571,13 @@ if ($do_repack || $deletecount) {
>  # We have to use piping because --delete is broken otherwise, as 
> documented
>  # at https://www.gnu.org/software/tar/manual/html_node/delete.html
>  if (@to_delete) {
> - spawn(exec => ['tar', '--delete', @to_delete ],
> -   from_file => $destfiletar,
> -   to_file => $destfiletar . ".tmp",
> -   wait_child => 1) if scalar(@to_delete) > 0;
> - move ($destfiletar . ".tmp", $destfiletar);
> + while (my @next_n = splice @to_delete, 0, 16384) {
> + spawn(exec => ['tar', '--delete', @next_n ],
> +   from_file => $destfiletar,
> +   to_file => $destfiletar . ".tmp",
> +   wait_child => 1) if scalar(@next_n) > 0;
> + move ($destfiletar . ".tmp", $destfiletar);
> + }
>  }
>  compress_archive($destfiletar, $destfile, $compression);

This looks a reasonable patch.  But I don't know why you chose
16384=0x400 as the max figure.

Following your comment, I tried on my local machine
$ getconf ARG_MAX
2097152

This is bigger than 16384.

If this is different on different system, why not dynamically check and
set it with some safety margin like `getconf ARG_MAX` - 16 etc.?

Osamu

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Bug#888046: marked as done (devscripts: Support signatures against uncompressed tarballs)

2018-01-23 Thread Debian Bug Tracking System
Your message dated Tue, 23 Jan 2018 22:14:19 +0900
with message-id <20180123131418.ga5...@goofy.tc4.so-net.ne.jp>
and subject line Re: Bug#888046: devscripts: Support signatures against 
uncompressed tarballs
has caused the Debian Bug report #888046,
regarding devscripts: Support signatures against uncompressed tarballs
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)


-- 
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Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: devscripts
Version: 2.17.12~bpo9+1
Severity: wishlist
File: /usr/bin/uscan

There are a number of projects hosted at kernel.org that use the
kup-client utility to handle uploads. While it may upload a signature to
verify the uploaded tarballs, those signatures are against the
uncompressed tarball, rather than the compressed tarballs.

For example, for dtc version 1.4.6, there is:

  https://www.kernel.org/pub/software/utils/dtc/

  dtc-1.4.6.tar.gz
  dtc-1.4.6.tar.sign
  dtc-1.4.6.tar.xz

I can download either .tar.gz or .tar.xz, decompress them, and then use
the .tar.sign to verify it, but I don't see any obvious way to do this
From debian/watch.


I'm also not sure the Debian archive supports uploading a signature file
against a file that isn't included in the distribution, so maybe this
isn't really an issue worth handling in uscan...


live well,
  vagrant

-- Package-specific info:

--- /etc/devscripts.conf ---

--- ~/.devscripts ---
Not present

-- System Information:
Debian Release: 9.3
  APT prefers stable
  APT policy: (500, 'stable'), (210, 'proposed-updates'), (120, 'unstable'), 
(1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: armhf, arm64

Kernel: Linux 4.9.0-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages devscripts depends on:
ii  dpkg-dev  1.18.24
ii  libc6 2.24-11+deb9u1
ii  libfile-homedir-perl  1.00-1
ii  perl  5.24.1-3+deb9u2
ii  python3   3.5.3-1
ii  sensible-utils0.0.9+deb9u1

Versions of packages devscripts recommends:
ii  apt 1.4.8
ii  at  3.1.20-3
ii  curl7.52.1-5+deb9u3
ii  dctrl-tools 2.24-2+b1
ii  debian-keyring  2017.11.24
ii  dput-ng [dput]  1.13
ii  equivs  2.0.9+nmu1
ii  fakeroot1.21-3.1
ii  file1:5.30-1+deb9u1
ii  gnupg   2.1.18-8~deb9u1
ii  gnupg2  2.1.18-8~deb9u1
ii  libdistro-info-perl 0.14
ii  libdpkg-perl1.18.24
ii  libencode-locale-perl   1.05-1
ii  libgit-wrapper-perl 0.047-1
ii  liblist-compare-perl0.53-1
ii  liblwp-protocol-https-perl  6.06-2
ii  libsoap-lite-perl   1.20-1
ii  liburi-perl 1.71-1
ii  libwww-perl 6.15-1
ii  licensecheck3.0.29-1
ii  lintian 2.5.67~bpo9+1
ii  man-db  2.7.6.1-2
ii  patch   2.7.5-1+b2
ii  patchutils  0.3.4-2
ii  python3-apt 1.4.0~beta3
ii  python3-debian  0.1.30
ii  python3-magic   1:5.30-1+deb9u1
ii  python3-requests2.12.4-1
pn  python3-unidiff 
ii  python3-xdg 0.25-4
ii  strace  4.15-2
ii  unzip   6.0-21
ii  wdiff   1.2.2-2
ii  wget1.18-5+deb9u1
ii  xz-utils5.2.2-1.2+b1

Versions of packages devscripts suggests:
pn  adequate 
ii  autopkgtest  4.4
pn  bls-standalone   
ii  bsd-mailx [mailx]8.1.2-0.20160123cvs-4
ii  build-essential  12.3
pn  check-all-the-things 
pn  cvs-buildpackage 
pn  devscripts-el
pn  diffoscope   
pn  disorderfs   
pn  dose-extra   
pn  duck 
pn  faketime 
pn  gnuplot  
ii  gpgv 2.1.18-8~deb9u1
pn  how-can-i-help   
ii  libauthen-sasl-perl  2.1600-1
ii  libfile-desktopentry-perl0.22-1
pn  libnet-smtps-perl
pn  libterm-size-perl
ii  libtimedate-perl 2.3000-2
pn  libyaml-syck-perl
pn