Allows killing of coroutines, given their task id.
The kore.task_create() method now returns the task id for a newly
created task to the caller.
While here, change the coroutine task id to a uint32 from uint64.
There is no need for it to be 64bit. (famous last words)
If built with PYTHON_CORO_DEBUG in CFLAGS Kore will spew out coroutine
traces while running. These traces include the filename, function and line
number where the coroutines are waking up, running and suspended.
- decouple pgsql from the HTTP request allowing it to be used in other
contexts as well (such as a task, etc).
- change names to dbsetup() and dbquery().
eg:
result = kore.dbquery("db", "select foo from bar")
In case libcurl instructs us to call the timeout function as soon
as possible (timeout == 0 in curl_timeout), don't try to be clever
with a timeout value of 10ms.
Instead call the timeout function once we get back in the worker
event loop. This makes things a lot snappier as we don't depend
on epoll/kqueue waiting for io for 10ms (which actually isn't 10ms...).
- If Kore is built with PYTHON=1 you can now specify the module that
should be loaded on the command-line.
eg: $ kore -frn myapp
- Add skeleton generation for python applications to kodev.
eg: $ kodev create -p myapp
This should make it a whole lot easier to get started with kore python.
1) Add @kore.prerequest python decorator.
Using this decorator on a function will cause that function
to always be executed *before* any page handler is run.
eg:
@kore.prerequest
def _check(req):
if req.method == kore.HTTP_METHOD_POST:
req.populate_post()
2) Allow attributes to be set on the pyhttp object.
We grab a reference to the pyhttp_client for the client_op data structure
but never removed it. This caused the pyhttp_client object to never
be released when out of scope.
Introduce kore_curl_strerror(), use this in kore_curl_logerror()
instead of assuming our errbuf has been populated.
Also use it in the python httpclient when throwing an exception rather
then looking at the errbuf member which may or may not be empty.
if an iterator is passed kore will send the response with
transfer-encoding: chunked and call the iterator for every
chunk that was sent.
The iterator must return a utf-8 string.
Works wonderful with TemplateStream from jinja2.
- Add kore_pgsql_query_param_fields() which allows you to pass in the
arrays for values, lengths and formats yourself.
- Add kore_pgsql_column_binary() which will return 1 if the given column
index contains a binary result or 0 if it contains a text result.
- Change the query call in req.pgsql() for Python to always use the
parameterized queries.
This adds the 'params' and 'binary' keywords to the req.pgsql method.
Eg:
result = await req.pgsql("db", "INSERT INTO foo (field) VALUES($1"),
params=["this is my value"])
This commit adds the CURL=1 build option. When enabled allows
you to schedule CURL easy handles onto the Kore event loop.
It also adds an easy to use HTTP client API that abstracts away the
settings required from libcurl to make HTTP requests.
Tied together with HTTP request state machines this means you can
write fully asynchronous HTTP client requests in an easy way.
Additionally this exposes that API to the Python code as well
allowing you do to things like:
client = kore.httpclient("https://kore.io")
status, body = await client.get()
Introduces 2 configuration options:
- curl_recv_max
Max incoming bytes for a response.
- curl_timeout
Timeout in seconds before a transfer is cancelled.
This API also allows you to take the CURL easy handle and send emails
with it, run FTP, etc. All asynchronously.
By default kore will restart worker processes if they terminate
unexpected. However in certain scenarios you may want to bring down
an entire kore instance if a worker process fails.
By setting worker_death_policy to "terminate" the Kore server will
completely stop if a worker exits unexpected.
this change also stops python coroutines from waking up very
late after their timeout has expired.
in filerefs, don't prime the timer until we actually have something
to expire, and kill the timer when the last ref drops.
Attach the events directly to the pysocket data structure instead of
one event per pysocket_op.
Makes the code easier, gives us a good performance boost and reduces
the number of system calls required when doing an await on a socket.
With these changes CRLs can be reloaded like certificates
by sending a SIGUSR1 to the parent process.
Track mtime on both certificate files and CRL files as well
and only submit them to the workers if this has changed.
Move away from the parent constantly hitting the disk for every
accesslog the workers are sending.
The workers will now write their own accesslogs to shared
memory before the parent will pick those up. The parent
will flush them to disk once every second or if they grow
larger then 1MB.
This removes the heavy penalty for having access logs
turned on when you are dealing with a large volume
of requests.
- add kore.time() as equivalent for kore_time_ms().
- call waitpid() until no more children are available for reaping otherwise
we risk missing a process if several die at the same time and only one
SIGCHLD is delivered to us.
- drain a RECV socket operation if eof is set but no exception was given.
Before we just doubled in size the second we exhausted a pool instead
of doing a more controlled expansion.
Now we will expand at 25% of the initial elm count whenever we need to.
Will help with memory pressure in certain scenarios.
Allows one to run coroutines concurrently and gather all their
results in a single returned list.
If any of the coroutines throw an exception the exception is
returned as the value of that coroutine in the returned list.
This commit removes TLS 1.0 support no matter what OpenSSL
you are linking against.
Changes the value of tls_version from 1.2 to both. Meaning if
you link with OpenSSL 1.1.1 you will get 1.2 + 1.3.
This adds kore.proc to the python runtime allowing async processing
handling:
The kore.proc method takes the command to run and an optional timeout
parameter in milliseconds. If the process did not exit normally after
that amount of time a TimeoutError exception is raised.
For instance:
async def run(cmd):
proc = kore.proc(cmd, 1000)
try:
await proc.send("hello")
proc.close_stdin()
except TimeoutError:
proc.kill()
retcode = await proc.reap()
return retcode
If exists these functions are called when the worker is exiting
and when right before the parent exists.
Allows for cleanup code for applications if need to do cleanup on exit.
This means you can now do things like:
resp = await koresock.recv(1024)
await koresock.send(resp)
directly from page handlers if they are defined as async.
Adds lots more to the python goo such as fatalx(), bind_unix(),
task_create() and socket_wrap().
Now anyone can schedule events and get a callback to work as long
as the user data structure that is added for the event begins
with a kore_event data structure.
All event state is now kept in that kore_event structure and renamed
CONN_[READ|WRITE]_POSSIBLE to KORE_EVENT_[READ|WRITE].
If a worker process dies it automatically gets respawned by the
parent process, but sometimes you want the entire server to go down
if a worker encounters an error. This is what fatalx() does.
Calling fatalx() from a worker process will initiate a full shutdown
of the kore server you are running under.
All worker processes will now call pledge(2) after dropping
privileges (even if -rn was specified).
By default Kore will use the following promises:
"stdio rpath inet error"
If your application requires more privileges, you can add more pledges
by setting them in your configuration using the 'pledge' directive:
pledge dns wpath
This is calculated while the HTTP body is incoming over the wire, once
the body is fully received the digest will be available for the page
handlers to obtain.
You can obtain a hex string for this md via http_body_digest() or
dereferences the http_request and look at http_body_digest manually
for the bytes.
Calling this from your page handler will cause your current worker
to give up the acceptlock (if it holds it).
This is particularly useful if you are about to run code that may block
a bit longer then you are comfortable with. Calling this will cause
the acceptlock to shuffle to another free worker which in turn makes
sure your application can keep accepting requests.
This commit introduces the ability for the keymgr process
to reload the certificates/keys for domains when receiving
a SIGUSR1 signal.
The keymgr receives 2 new configuration options:
- keymgr_root_path
The root path where the keymgr will live.
If -n is not specified when the application starts the
keymgr process will chroot into here.
- keymgr_runas_user
The user the keymgr will drop privileges towards if
-r was not specified.
All certfile and certkey configuration options are now relative to the
keymgr_root_path configuration setting.
The keymgr process will now also load the certificate for the domain
(rather then the workers) and submit these to the worker processes so
they can be reloaded when required.
Worker processes will refuse connections until the TLS configuration
for a given domain is completed (aka: the workers receive the certificate
for that domain).
Other changes:
- client_certificates renamed to client_verify.
- the chroot configuration option is now called root.
- kore is a little more verbose if privsep options are missing.
- filemaps are now relative to the root configuration option.
- make sure we can serve updated files even if we have an old
fileref around.
- add filemap_index as a configuration option: allows one to specify
what file to serve if a directory was requested (eg: index.html)
A filemap is a way of telling Kore to serve files from a directory
much like a traditional webserver can do.
Kore filemaps only handles files. Kore does not generate directory
indexes or deal with non-regular files.
The way files are sent to a client differs a bit per platform and
build options:
default:
- mmap() backed file transfer due to TLS.
NOTLS=1
- sendfile() under FreeBSD, macOS and Linux.
- mmap() backed file for OpenBSD.
The opened file descriptors/mmap'd regions are cached and reused when
appropriate. If a file is no longer in use it will be closed and evicted
from the cache after 30 seconds.
New API's are available allowing developers to use these facilities via:
void net_send_fileref(struct connection *, struct kore_fileref *);
void http_response_fileref(struct http_request *, struct kore_fileref *);
Kore will attempt to match media types based on file extensions. A few
default types are built-in. Others can be added via the new "http_media_type"
configuration directive.
You can now per domain configure the depth for x509 chain validation:
client_verify_depth 1
By default this is 1.
While here change around some log messages and properly set
the callback for x509 verification rather then via hoops and loops.
This function now takes any remaining arguments passed on the command line
after kore parsed its own.
For C the new prototype looks like this:
void kore_parent_configure(int argc, char **argv);
For python code, kore will pass each argument to the function so you
can do things like:
def kore_parent_configure(arg1, arg2):
Mimics how the header files are installed on a system
as PREFIX/include/kore.
This is required for getting kodev to use the headers from the
kore_source option instead of requiring the kore headers to be
installed on the system even when building as a single_binary.
Joris Vink
Erik Karlsson
Sebastiaan