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2021-07-26Router: renamed nxt_http_proxy_create() as nxt_http_proxy_init().Zhidao HONG3-18/+17
No functional changes.
2021-07-23Router: split nxt_http_static_conf_t from nxt_http_action_t.Zhidao HONG5-173/+198
No functional changes.
2021-07-22Changing SNI callback return code if a client sends no SNI.Andrey Suvorov1-5/+5
When a client sends no SNI is a common situation. But currently the server processes it as an error and returns SSL_TLSEXT_ERR_ALERT_FATAL causing termination of a current TLS session. The problem occurs if configuration has more than one certificate bundle in a listener. This fix changes the return code to SSL_TLSEXT_ERR_OK and the log level of a message.
2021-07-21Enabling configure TLS sessions.Andrey Suvorov4-22/+136
To support TLS sessions, Unit uses the OpenSSL built-in session cache; the cache_size option defines the number sessions to store. To disable the feather, the option must be zero.
2021-07-20Python: using default event_loop for main thread for ASGI.Max Romanov4-16/+22
Unit's ASGI implementation creates a new event loop to run an application for each thread since 542b5b8c0647. This may cause unexpected exceptions or strange bugs if asyncio synchronisation primitives are initialised before the application starts (e.g. globally). Although the approach with a new event loop for the main thread is consistent and helps to prepare the application to run in multiple threads, it can be a source of pain for people who just want to run single-threaded ASGI applications in Unit. This is related to #560 issue on GitHub.
2021-07-20Python: fixing exceptions in Future.set_result for ASGI implementation.Max Romanov1-23/+32
An ASGI application can cancel the Future object returned by the receive() call. In this case, Unit's ASGI implementation should not call set_result() because the Future is already handled. In particular, the Starlette framework was noted to cancel the received Future. This patch adds a done() check for the Future before attempting a set_result(). This is related to #564 issue on GitHub.
2021-07-20Python: fixing ASGI receive() issues.Max Romanov1-33/+54
The receive() call never blocks for a GET request and always returns the same empty body message. The Starlette framework creates a separate task when receive() is called in a loop until an 'http.disconnect' message is received. The 'http.disconnect' message was previously issued after the response header had been sent. However, the correct behavior is to respond with 'http.disconnect' after sending the response is complete. This closes #564 issue on GitHub.
2021-07-19Router: fixing assertion on app thread port handle.Max Romanov1-8/+10
A new application thread port message can be processed in the router after the application is removed from the router. Assertion for this case is replaced by a condition to store the new thread port until receiving the stop notification from the application process.
2021-07-02Ruby: process and thread lifecycle hooks.Oisin Canty4-1/+151
This feature allows one to specify blocks of code that are called when certain lifecycle events occur. A user configures a "hooks" property on the app configuration that points to a script. This script will be evaluated on boot and should contain blocks of code that will be called on specific events. An example of configuration: { "type": "ruby", "processes": 2, "threads": 2, "user": "vagrant", "group": "vagrant", "script": "config.ru", "hooks": "hooks.rb", "working_directory": "/home/vagrant/unit/rbhooks", "environment": { "GEM_HOME": "/home/vagrant/.ruby" } } An example of a valid "hooks.rb" file follows: File.write("./hooks.#{Process.pid}", "hooks evaluated") on_worker_boot do File.write("./worker_boot.#{Process.pid}", "worker booted") end on_thread_boot do File.write("./thread_boot.#{Process.pid}.#{Thread.current.object_id}", "thread booted") end on_thread_shutdown do File.write("./thread_shutdown.#{Process.pid}.#{Thread.current.object_id}", "thread shutdown") end on_worker_shutdown do File.write("./worker_shutdown.#{Process.pid}", "worker shutdown") end This closes issue #535 on GitHub.
2021-07-02Fixing crash during IPv6 text address generation.Oisin Canty1-2/+2
When the textual representation of an IPv6 nxt_sockaddr_t was being generated, a crash would occur if the address had a full IPv6 form: f607:7403:1e4b:6c66:33b2:843f:2517:da27 This was caused by a variable that tracks the location of a collapsed group ("::") that was not set to a sane default. When the address was generated, a group would be inserted when it was not necessary, thus causing an overflow. This closes #481 issue on GitHub.
2021-07-01Deduplicating code for closing fds in nxt_port_send_msg_t.Max Romanov1-39/+25
2021-07-01Fixing memory and descriptor leakage in case of port send failure.Max Romanov1-0/+18
In rare cases, when the destination process had finished running but no notification of this was received yet, send could fail with an error, and the send message structure with file descriptors could leak. The leakage was periodically reproduced by respawn tests on FreeBSD 12.
2021-07-01Ruby: improved logging of exceptions without backtraces.Oisin Canty1-4/+8
If an exception was raised with a backtrace of zero length, the nxt_ruby_exception_log() routine would return without logging the exception class and message. This commit fixes the issue.
2021-07-01Fixing multiple TLS-enabled listeners initialization.Max Romanov1-6/+5
Because of the incorrect 'last' field assignment, multiple listeners with a TLS certificate did not initialize properly, which caused a router crash while establishing a connection. Test with multiple TLS listeners added. The issue was introduced in the c548e46fe516 commit. This closes #561 issue on GitHub.
2021-05-24Router: split nxt_http_return_conf_t from nxt_http_action_t.Zhidao HONG3-101/+132
No functional changes.
2021-06-15Node.js: improving and test packaging.Max Romanov1-22/+0
The patch removes the "files" section from package.json to avoid future issues with missing files. For package testing purposes, 'npm pack' is used instead of plain 'tar' to simulate packaging more accurately.
2021-06-02Node.js: packaging new loader.js and loader.mjs.Max Romanov1-0/+2
The files loader.js and loader.mjs (introduced in f85b85094541 and 3c551b9721df) were added to the packaged files list.
2021-05-26Enabling SSL_CTX configuration by using SSL_CONF_cmd().Andrey Suvorov4-61/+195
To perform various configuration operations on SSL_CTX, OpenSSL provides SSL_CONF_cmd(). Specifically, to configure ciphers for a listener, "CipherString" and "Ciphersuites" file commands are used: https://www.openssl.org/docs/man1.1.1/man3/SSL_CONF_cmd.html This feature can be configured in the "tls/conf_commands" section.
2021-05-26Fixing crash during TLS connection shutdown.Andrey Suvorov4-6/+29
A crash was caused by an incorrect timer handler nxt_h1p_idle_timeout() if SSL_shutdown() returned SSL_ERROR_WANT_READ/SSL_ERROR_WANT_WRITE. The flag SSL_RECEIVED_SHUTDOWN is used to avoid getting SSL_ERROR_WANT_READ, so the server won't wait for a close notification from a client. For SSL_ERROR_WANT_WRITE, a correct timer handler is set up.
2021-05-26Static: handled unknown MIME types when MIME-filtering active.Oisin Canty2-19/+15
2021-05-26MIME: added PHP.Oisin Canty1-0/+2
2021-05-25Fixing racing condition on listen socket close in router (v2).Max Romanov1-5/+5
This patch fixes a possible race between the nxt_router_conf_wait() and nxt_router_listen_socket_release() function calls and improves the 7f1b2eaa2d58 commit fix.
2021-05-25Configuration: generalized application "targets" validation.Oisin Canty1-110/+68
2021-05-24Node.js: renamed "require_shim" to "loader".Oisin Canty2-2/+2
2021-05-21PHP: adopted "file_handle" to Zend API changes in 8.1.0-dev.Valentin Bartenev1-0/+10
This fixes building module with the development version of PHP after the change: https://github.com/php/php-src/commit/c732ab400af92c54eee47c487a56009f1d79dd5d
2021-05-20Python: support for multiple targets.Oisin Canty9-79/+380
2021-05-18Ruby: changing deprecated rb_cData to rb_cObject.Oisin Canty1-2/+6
Ruby 3.0 deprecated rb_cData with the intention to remove it in release 3.1. This commit changes references of rb_cData to rb_cObject. This was done so we can support distributions that package Ruby 3.0, such as Fedora 34. We also need to call rb_undef_alloc_func because we're no longer deriving from rb_cData. This prevents unnecessary allocations. See: https://docs.ruby-lang.org/en/3.0.0/doc/extension_rdoc.html "It is recommended that klass derives from a special class called Data (rb_cData) but not from Object or other ordinal classes. If it doesn't, you have to call rb_undef_alloc_func(klass)."
2021-05-17Fixing a crash after applying the wrong TLS configuration.Andrey Suvorov2-3/+22
When an invalid TLS configuration is applied (such as the conf_commands feature), nxt_cert_store_get() creates a buffer to send a certificate request to the main process and adds its default completion handler to an asynchronous queue to free the allocated buffer. However, if configuration fails, nxt_router_conf_error() removes the memory pool used to allocate the buffer, causing a crash when the completion handler is dispatched. Assertion "src/nxt_buf.c:208 assertion failed: data == b->parent" is triggered when is NXT_DEBUG enabled in the configure script. This patch uses a reference counter to retain the memory pool and redefines the completion handler to free the buffer before releasing the memory pool.
2021-05-17Fixing racing condition on listen socket close in router.Max Romanov2-10/+16
Listen socket is actually closed in the instant timer handler. This patch moves the "configuration has been applied" notification to the timer handler to avoid a situation when the user gets the response from the controller, but the listen socket is still open in the router.
2021-05-12Node.js: a shim for overriding "http" and "websocket" modules.Oisin Canty4-12/+72
Also added stubs for Server.address() This was done to prevent crashes in some popular frameworks like express Supports both CommonJS and the new ES Modules system syntax e.g: app.js: const http = require('http') app.mjs: import http from "http" Usage on Node 14.16.x and higher: { "type": "external", "processes": {"spare": 0}, "working_directory": '/project', "executable": "/usr/bin/env", "arguments": [ "node", "--loader", "unit-http/require_shim.mjs" "--require", "unit-http/require_shim", "app.js" ] } Usage on Node 14.15.x and lower: { "type": "external", "processes": {"spare": 0}, "working_directory": '/project', "executable": "/usr/bin/env", "arguments": [ "node", "--require", "unit-http/require_shim", "app.js" ] }
2021-05-07PHP: forced initialization of $_SERVER in fastcgi_finish_request().Valentin Bartenev1-1/+26
The "auto_globals_jit" PHP option postponed the initialization of the $_SERVER global variable until the script using it had been loaded (e. g. via the "include" expression). As a result, nxt_php_register_variables() could be called after fastcgi_finish_request() had finished the request and nulled ctx->req, which thus caused a segmentation fault.
2021-05-06Static: implemented MIME filteringOisin Canty4-17/+73
2021-05-05Fixed format and arguments mismatches in error log messages.Zhidao HONG2-3/+3
2021-05-05Fixed building without openat2().Zhidao HONG1-1/+3
2021-04-29Static: support for openat2() features.Zhidao HONG8-27/+274
Support for chrooting, rejecting symlinks, and rejecting crossing mounting points on a per-request basis during static file serving.
2021-04-22Router: grouped app and share fields in nxt_http_action_t.Zhidao HONG5-31/+45
This is a prerequisite for further introduction of openat2() features. No functional changes.
2021-03-25Fixing shm buffer leakage when sending over the port queue.Max Romanov1-13/+84
When the shm buffer is sent over the port queue, it needs to be completed because it's sent over the port socket.
2021-03-25Node.js: used distinct placeholder for version in "package.json".Valentin Bartenev1-1/+1
This makes the "sed" instruction simpler and more portable, as the previous variant didn't work well on BSD systems due to the "\s" metacharacter. Thanks to Sergey A. Osokin <osa@FreeBSD.org.ru> for spotting this issue. Also, this should prevent accidentally creating a version 1.0.0 package.
2021-03-25Releasing shm buffers for large body requests.Max Romanov2-12/+4
This fixes memory and shm file descriptor leakage that occurred when a large request body was passed via shared memory. The leakage was caught with the "test_settings_body_buffer_size" test. The main condition is the "body_buffer_size" value exceeding 10 Mb (a shm segment). Thus, the router was forced to split the body into several shm segments, but these buffers were not freed because of dummy completion handlers.
2021-03-24Added ability to configure multiple certificates on a listener.Andrey Suvorov4-68/+517
The certificate is selected by matching the arriving SNI to the common name and the alternatives names. If no certificate matches the name, the first bundle in the array is chosen.
2021-03-24Certificates: fixed in name attributes processing.Valentin Bartenev1-25/+16
The idea is to put SAN after CN, but the previous version of the code incorrectly assumed that CN was always present, which caused writes outside the allocated object if there were no standard name attributes.
2021-03-24Certificates: moved SAN processing to a separate function.Valentin Bartenev1-36/+56
No functional changes.
2021-03-24Certficates: fixed counting DNS SAN entries.Valentin Bartenev1-2/+5
Previously, entries of any type were counted during object allocation but only DNS type entries were actually processed. As a result, if some certificate entries had another type, returning information about the certificate caused uninitialized memory access.
2021-03-24Workaround for an OpenSSL bug about not closing /dev/*random.Max Romanov1-0/+11
This is a workaround for an issue in OpenSSL 1.1.1, where the /dev/random and /dev/urandom files remain open after all listening sockets were removed: - https://github.com/openssl/openssl/issues/7419
2021-03-24Disabled logging alerts to syslog.Valentin Bartenev2-2/+16
It feels to be causing more harm than good, because syslog() can be blocking, which is even more critical under resource exhaustion conditions when some alerts are expected.
2021-03-15Fixed building the PHP 5 module with ZTS, broken by dab8544b5440.Valentin Bartenev1-0/+4
This closes #525 issue on GitHub.
2021-03-15Ruby: fixed encodings initialization.Valentin Bartenev1-0/+4
The Ruby interpreter expects an explicit setlocale() call before initialization to pick up character encodings in the "Encoding" class from the environment. This closes #531 issue on GitHub.
2021-03-15Fixed certificates loading on startup with some filesystems.Valentin Bartenev1-4/+6
It appears that readdir() on Linux detects file types unreliably, always setting the "d_type" field to DT_UNKNOWN for some less common filesystems. As a result, all files were skipped and no certificate bundles were found when the state directory was located on such filesystems. Skipping "." and ".." instead of any non-regular files should be enough, as no other non-regular files normally appear in this directory. This closes #368 issue on GitHub.
2021-03-15Fixed TLS connection shutdown on errors.Valentin Bartenev1-4/+0
An immediate return statement on connection errors was mistakenly added to the beginning of nxt_openssl_conn_io_shutdown() in ecd3c5bbf7d8, breaking the TLS connection finalization procedure. As a result, a TLS connection was left unfinalized if it had been closed prematurely or a fatal protocol error had occurred, which caused memory and socket descriptor leakage. Moreover, in some cases (notably, on handshake errors in tests with kqueue on macOS) the read event was triggered later and nxt_h1p_conn_error() was called the second time; after the change in af93c866b4f0, the latter call crashed the router process in an attempt to remove a connection from the idle queue twice.
2021-03-02Closing app outgoing shared memory file descriptor.Max Romanov1-0/+5
This fixes file descriptor leakage in router. Shared memory file used to send data from router to application. These files are shared among all processes of same application and router keeps the opened file descriptor since 06017e6e3a5f commit.