Commit 35d41db changed the API for using
SSL with umqtt, but only did a minor version increase.  This broke various
uses of this library, eg
https://github.com/aws-samples/aws-iot-core-getting-started-micropython

Reinstate the original API for specifying an SSL connection.  This library
now supports the following:
- default, ssl=None or ssl=False: no SSL
- ssl=True and optional ssl_params specified: use ssl.wrap_socket
- ssl=<SSLContext instance>: use provided SSL context to wrap socket

Signed-off-by: Damien George <damien@micropython.org>

According to the datasheet of the NRF240L1 chip, 150 μs startup time is
only acceptable when the chip is clocked externally.  Most modules use a
crystal, which require 1.5 ms to settle.  It should be okay to wait more in
both cases, for a reliable startup.

Signed-off-by: Marcell Pünkösd <punkosdmarcell@rocketmail.com>

The timeout condition was not handled before.  Upon timeout, this caused
the chip to stay active until another send command changed it's state.

Sometimes when it was unable to transmit the data, it got stuck in the tx
fifo causing it to fill up over time, which set the TX_FULL flag in the
STATUS register.

Since there was no exceptions raised, the user code could not differentiate
a successful send or a timeout condition.

Signed-off-by: Marcell Pünkösd <punkosdmarcell@rocketmail.com>

The value of the STATUS register is always transmitted by the chip when
reading any command.  So a R_REGISTER command and the turnaround time can
be spared by issuing a NOP command instead.

This implementation suggested by the datasheet.

This operation is compatible with both nRF24L01 and nRF24L01+.

Signed-off-by: Marcell Pünkösd <punkosdmarcell@rocketmail.com>

Due to the previous three commits.

Signed-off-by: Damien George <damien@micropython.org>

This commit fixes a typo and changes a tuple that needs to be mutable to a
list (because other parts of the code change elements of this list).

Signed-off-by: Damien George <damien@micropython.org>

Same as micropython's internal json lib does.

Fixes micropython#985.

Signed-off-by: Dominik Heidler <dheidler@suse.de>

Newer implementations of libc integrate the functions from librt, for
example glibc since 2.17 and uClibc-ng.  So if the librt.so cannot be
loaded, it can be assumed that libc contains the expected functions.

Signed-off-by: Bas van Doren <basvdoren@gmail.com>

The host in headers extracted from the original url may not be the same as
the host in the redirect url.  Poping out the host in headers force the
code to use the host in the redirect url, otherwise the redirect may fail
due to inconsistence of hosts in the original url and the redirect url.

Signed-off-by: 黃昕暐 <meebox@gmail.com>

According to RFC https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
header names are case-insensitive.

This commit makes sure that the module behaves consistently regardless of
the casing of "Content-type" and "Content-Length" (other headers are not
considered by the module).

Without this fix, the client seems to wait for the connection termination
(~10 seconds) prior to returning any content if the casing of
"Content-Length" is different.

Signed-off-by: FuNK3Y <fun__key@hotmail.com>

This commit will make it possible to add headers to a Websocket.

Among other things, this allows making a connection to online MQTT brokers
over websocket, using the header entry "Sec-WebSocket-Protocol":"mqtt" in
the handshake of the upgrade protocol.

Signed-off-by: Damien George <damien@micropython.org>

Only allocate a memoryview when the (first) write was partial.

Signed-off-by: Matthias Urlichs <matthias@urlichs.de>

Also optimise both `isgenerator()` and `isgeneratorfunction()` so they use
the same lambda, and don't have to create it each time they are called.

Fixes issue micropython#997.

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Wasn't being treated as a signed value.

Fixes issue micropython#999.

Signed-off-by: Angus Gratton <angus@redyak.com.au>

With small code fixes to match.

Signed-off-by: Angus Gratton <angus@redyak.com.au>

Signed-off-by: Angus Gratton <angus@redyak.com.au>