see https://review.gluster.org/#/c/19788/

use print fn from __future__

Change-Id: If5075d8d9ca9641058fbc71df8a52aa35804cda4
updates: #411
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>

Python 2.7 HMAC does not support Unicode strings. Secret is read
from file so it is possible that glustereventsd reads the content
as Unicode. This patch converts the secret to `str` type before
generating HMAC signature.

Fixes: bz#1568820
Change-Id: I7daa64499ac4ca02544405af26ac8af4b6b0bd95
Signed-off-by: Aravinda VK <avishwan@redhat.com>

Note 1) we're not supposed to be using #!/usr/bin/env python, see
https://fedoraproject.org/wiki/Packaging:Guidelines?rd=Packaging/Guidelines#Shebang_lines

Note 2) we're also not supposed to be using "!/usr/bin/python,
see https://fedoraproject.org/wiki/Changes/Avoid_usr_bin_python_in_RPM_Build#Quick_Opt-Out

The previous patch (https://review.gluster.org/19767) tried to do too
much in one patch, so it was abandoned.

This patch does two things:
1) minor cleanup of configure(.ac) to explicitly use python2
2) change all the shebang lines to #!/usr/bin/python2 and add them
where they were missing based on warnings emitted during rpmbuild.

In a follow-up patch python2 will eventually be changed to python3.

Before that python2-isms (e.g. print, string.join(), etc.) need to be
converted to python3. Some of those can be rewritten in version agnostic
python. E.g. print statements become print() with "from __future_ import
print_function". The python 2to3 utility will be used for some of those.
Also Aravinda has given guidance in the comments to the first patch for
changes.

updates: #411
Change-Id: I471730962b2526022115a1fc33629fb078b74338
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>

With Gluster 4.0 we will not provide the server components for EL6 and
older. At one point Gluster 4.x will get GlusterD2, which requires
Golang tools in the distribution. EL6 does not contain these at the
moment.

With this change, it is possible to `./configure --without-server` which
prevents building glusterd and the xlators for the bricks. Building RPMs
can pass `--without server` and the glusterfs-server sub-package will
not be created.

Change-Id: I97f5ccf9f2c76e60d9af83915fc59fae57ad6d25
BUG: 1074947
Signed-off-by: Niels de Vos <ndevos@redhat.com>

Added support for JWT signing without using python-jwt since it is not
available in all the distributions.

BUG: 1529463
Change-Id: I95699055442fbf9da15249f5defe8a8b287010f1
Signed-off-by: Aravinda VK <avishwan@redhat.com>

Send an event if DHT determines that a subvol is getting
full or running out of inodes.

Change-Id: Ie026f4ee1832b5df1e80b16cb949b2cc31a25d6f
Bug: 1440659
Signed-off-by: Ankit raj <anraj@redhat.com>
Signed-off-by: N Balachandran <nbalacha@redhat.com>

Issue:
Glusterevents daemon hardcodes glusterd working directory
 even though it can be changed later in .vol file
 which causes breaks in the code.

Fix: Use python subprocess module to get the working directory
of gluster daemon in eventsapiconf.py.in.

Change-Id: I5e92185604f8c8aeb77dabdc00f9ea0f8e92c88d
BUG: 1512455
Signed-off-by: Vishal Pandey <vishpandey2014@gmail.com>

First it tries to call URL with verify=True without specifying the cert
path, it succeeds if a webhook is HTTP or HTTPS with CA trusted
certificates(for example https://github..).

If above call fails with SSL error then it tries to get the server
certificate and calls URL again. If call fails with SSL error even after
using the certificate, then verification will be disabled and logged in
the log file.

All other errors will be catched and logged as usual.

BUG: 1506903
Change-Id: I86a3390ed48b75dffdc7848022af23a1e1d7f076
Signed-off-by: Aravinda VK <avishwan@redhat.com>

'make clean' does not cleanup everything, and some of the files get
cleaned too eagerly. Several files are being packaged in a 'make dist'
tarball, that get rebuild each time anyway.

Specifically, this change prevents
 - libglusterfs/src/generator.pyc from laying around
 - keeping rpc/xdr/gen/*.x symlinks
 - modifying tests/basic/{fuse,gfapi}/Makefile each run
 - including tests/env.rc and events/src/eventtypes.py in the tarball

Change-Id: I774dd1abf3a9d3b6a89b938cf6ee7d7792c59a82
BUG: 1501317
Reported-by: Patrick Matthäi <pmatthaei@debian.org>
Signed-off-by: Niels de Vos <ndevos@redhat.com>

New argument added to accept secret to generate JWT token. This patch
does not affect the backward compatibility.

Usage:

    gluster-eventsapi webhook-add <url> [-t <TOKEN>] \
        [-s SECRET]

With `--token` argument, Token header will be added as is.

    Authorization: Bearer <TOKEN>

In case of shared secret, Gluster will generate JWT token using the
secret and then add it to Authorization header.

    Authorization: Bearer <GENERATED_TOKEN>

Secret/Token can be updated using `webhook-mod` command.

Generated token will include the following payload,

    {
       "iss": "gluster",
       "exp": EXPIRY_TIME,
       "sub": EVENT_TYPE,
       "iat": EVENT_TIME
     }

Where: iss - Issuer, exp - Expiry Time, sub - Event Type
       used as Subject, iat - Event Time used as Issue Time

BUG: 1496363
Change-Id: Ib6b6fab23fb212d7f5e9bbc9e1416a9e9813ab1b
Signed-off-by: Aravinda VK <avishwan@redhat.com>