| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include <qpid/dispatch/atomic.h> |
| #include <qpid/dispatch/amqp.h> |
| #include <qpid/dispatch/threading.h> |
| #include <qpid/dispatch/timer.h> |
| |
| #include <proton/connection.h> |
| #include <proton/event.h> |
| #include <proton/transport.h> |
| |
| #include <libwebsockets.h> |
| |
| #include <assert.h> |
| #include <ctype.h> |
| #include <errno.h> |
| #include <inttypes.h> |
| #include <time.h> |
| |
| #include "http.h" |
| #include "server_private.h" |
| #include "config.h" |
| |
| static const char *CIPHER_LIST = "ALL:aNULL:!eNULL:@STRENGTH"; /* Default */ |
| |
| /* Log for LWS messages. For dispatch server messages use qd_http_server_t::log */ |
| static qd_log_source_t* http_log; |
| |
| static qd_log_level_t qd_level(int lll) { |
| switch (lll) { |
| case LLL_ERR: return QD_LOG_ERROR; |
| case LLL_WARN: return QD_LOG_WARNING; |
| /* LWS is noisy compared to dispatch on the informative levels, downgrade */ |
| case LLL_NOTICE: return QD_LOG_DEBUG; |
| default: return QD_LOG_TRACE; /* Everything else to trace */ |
| } |
| } |
| |
| static void logger(int lll, const char *line) { |
| size_t len = strlen(line); |
| while (len > 1 && isspace(line[len-1])) { /* Strip trailing newline */ |
| --len; |
| } |
| qd_log(http_log, qd_level(lll), "%.*s", len, line); |
| } |
| |
| static void log_init() { |
| http_log = qd_log_source("HTTP"); |
| int levels = 0; |
| for (int i = 0; i < LLL_COUNT; ++i) { |
| int lll = 1<<i; |
| levels |= qd_log_enabled(http_log, qd_level(lll)) ? lll : 0; |
| } |
| lws_set_log_level(levels, logger); |
| } |
| |
| /* Intermediate write buffer: LWS needs extra header space on write. */ |
| typedef struct buffer_t { |
| char *start; |
| size_t size, cap; |
| } buffer_t; |
| |
| /* Ensure size bytes in buffer, make buf empty if alloc fails */ |
| static void buffer_set_size(buffer_t *buf, size_t size) { |
| if (size > buf->cap) { |
| buf->cap = (size > buf->cap * 2) ? size : buf->cap * 2; |
| buf->start = realloc(buf->start, buf->cap); |
| } |
| if (buf->start) { |
| buf->size = size; |
| } else { |
| buf->size = buf->cap = 0; |
| } |
| } |
| |
| /* AMQPWS connection: set as lws user data and qd_conn->context */ |
| struct qd_http_connection_t { |
| qd_connection_t *qd_conn; |
| pn_transport_t *transport; |
| buffer_t wbuf; /* LWS requires allocated header space at start of buffer */ |
| struct lws *wsi; |
| char name[NI_MAXHOST+NI_MAXSERV]; /* Remote host:port */ |
| char hostip[NI_MAXHOST]; /* Remote host IP address */ |
| bool closed; |
| }; |
| |
| /* Navigating from WSI pointer to qd objects */ |
| static qd_http_server_t *wsi_server(struct lws *wsi); |
| static qd_http_listener_t *wsi_listener(struct lws *wsi); |
| static qd_log_source_t *wsi_log(struct lws *wsi); |
| |
| |
| /* Declare LWS callbacks and protocol list */ |
| static int callback_http(struct lws *wsi, enum lws_callback_reasons reason, |
| void *user, void *in, size_t len); |
| static int callback_amqpws(struct lws *wsi, enum lws_callback_reasons reason, |
| void *user, void *in, size_t len); |
| |
| static struct lws_protocols protocols[] = { |
| /* HTTP only protocol comes first */ |
| { |
| "http-only", |
| callback_http, |
| 0, |
| }, |
| /* "amqp" is the official oasis AMQP over WebSocket protocol name */ |
| { |
| "amqp", |
| callback_amqpws, |
| sizeof(qd_http_connection_t), |
| }, |
| /* "binary" is an alias for "amqp", for compatibility with clients designed |
| * to work with a WebSocket proxy |
| */ |
| { |
| "binary", |
| callback_amqpws, |
| sizeof(qd_http_connection_t), |
| }, |
| { NULL, NULL, 0, 0 } /* terminator */ |
| }; |
| |
| |
| static inline int unexpected_close(struct lws *wsi, const char *msg) { |
| lws_close_reason(wsi, LWS_CLOSE_STATUS_UNEXPECTED_CONDITION, |
| (unsigned char*)msg, strlen(msg)); |
| char peer[64] = ""; |
| lws_get_peer_simple(wsi, peer, sizeof(peer)); |
| qd_log(wsi_log(wsi), QD_LOG_ERROR, "Error on HTTP connection from %s: %s", peer, msg); |
| return -1; |
| } |
| |
| static int handle_events(qd_http_connection_t* c) { |
| if (!c->qd_conn) { |
| return unexpected_close(c->wsi, "not-established"); |
| } |
| qd_connection_process(c->qd_conn); |
| if (pn_transport_pending(c->transport) > 0) { |
| lws_callback_on_writable(c->wsi); |
| } |
| bool has_event = pn_collector_peek(pn_connection_collector(c->qd_conn->pn_conn)); |
| if (pn_transport_closed(c->transport) && !has_event) { |
| lws_close_reason(c->wsi, LWS_CLOSE_STATUS_NORMAL, NULL, 0); |
| c->closed = true; |
| qd_connection_process(c->qd_conn); |
| return -1; |
| } |
| return 0; |
| } |
| |
| /* The server has a bounded, thread-safe queue for external work */ |
| typedef struct work_t { |
| enum { W_NONE, W_LISTEN, W_CLOSE, W_WAKE, W_STOP } type; |
| void *value; |
| } work_t; |
| |
| #define WORK_MAX 8 /* Just decouple threads, not a big buffer */ |
| |
| typedef struct work_queue_t { |
| sys_mutex_t *lock; |
| sys_cond_t *cond; |
| work_t work[WORK_MAX]; |
| size_t head, len; /* Ring buffer */ |
| } work_queue_t; |
| |
| /* HTTP Server runs in a single thread, communication from other threads via work_queue */ |
| struct qd_http_server_t { |
| qd_server_t *server; |
| sys_thread_t *thread; |
| work_queue_t work; |
| qd_log_source_t *log; |
| struct lws_context *context; |
| pn_timestamp_t now; /* Cache current time in thread_run */ |
| pn_timestamp_t next_tick; /* Next requested tick service */ |
| }; |
| |
| static void work_queue_destroy(work_queue_t *wq) { |
| if (wq->lock) sys_mutex_free(wq->lock); |
| if (wq->cond) sys_cond_free(wq->cond); |
| } |
| |
| static void work_queue_init(work_queue_t *wq) { |
| wq->lock = sys_mutex(); |
| wq->cond = sys_cond(); |
| } |
| |
| /* Block till there is space */ |
| static void work_push(qd_http_server_t *hs, work_t w) { |
| work_queue_t *wq = &hs->work; |
| sys_mutex_lock(wq->lock); |
| while (wq->len == WORK_MAX) { |
| lws_cancel_service(hs->context); /* Wake up the run thread to clear space */ |
| sys_cond_wait(wq->cond, wq->lock); |
| } |
| wq->work[(wq->head + wq->len) % WORK_MAX] = w; |
| ++wq->len; |
| sys_mutex_unlock(wq->lock); |
| lws_cancel_service(hs->context); /* Wake up the run thread to handle my work */ |
| } |
| |
| /* Non-blocking, return { W_NONE, NULL } if empty */ |
| static work_t work_pop(qd_http_server_t *hs) { |
| work_t w = { W_NONE, NULL }; |
| work_queue_t *wq = &hs->work; |
| sys_mutex_lock(wq->lock); |
| if (wq->len > 0) { |
| w = wq->work[wq->head]; |
| wq->head = (wq->head + 1) % WORK_MAX; |
| --wq->len; |
| sys_cond_signal(wq->cond); |
| } |
| sys_mutex_unlock(wq->lock); |
| return w; |
| } |
| |
| /* Each qd_http_listener_t is associated with an lws_vhost */ |
| struct qd_http_listener_t { |
| qd_listener_t *listener; |
| qd_http_server_t *server; |
| struct lws_vhost *vhost; |
| char host_port[NI_MAXHOST + NI_MAXSERV]; |
| struct lws_http_mount mount; |
| }; |
| |
| void qd_http_listener_free(qd_http_listener_t *hl) { |
| if (!hl) return; |
| if (hl->listener) { |
| hl->listener->http = NULL; |
| } |
| free(hl); |
| } |
| |
| static qd_http_listener_t *qd_http_listener(qd_http_server_t *hs, qd_listener_t *li) { |
| qd_http_listener_t *hl = calloc(1, sizeof(*hl)); |
| if (hl) { |
| hl->server = hs; |
| hl->listener = li; |
| li->http = hl; |
| } else { |
| qd_log(hs->log, QD_LOG_CRITICAL, "No memory for HTTP listen on %s", hl->host_port); |
| } |
| return hl; |
| } |
| |
| static int qd_port_int(const char* port_str) { |
| if (!strcmp(port_str, "amqp")) return 5672; |
| if (!strcmp(port_str, "amqps")) return 5671; |
| errno = 0; |
| unsigned long n = strtoul(port_str, NULL, 10); |
| if (errno || n > 0xFFFF) return -1; |
| return n; |
| } |
| |
| static void listener_start(qd_http_listener_t *hl, qd_http_server_t *hs) { |
| log_init(); /* Update log flags at each listener */ |
| |
| const qd_server_config_t *config = hl->listener->config; |
| |
| int port = qd_port_int(config->port); |
| snprintf(hl->host_port, sizeof(hl->host_port), "%s:%s", config->host, config->port); |
| if (port <= 0) { |
| qd_log(hs->log, QD_LOG_ERROR, "HTTP listener %s invalid port", hl->host_port); |
| goto error; |
| } |
| struct lws_http_mount *m = &hl->mount; |
| m->mountpoint = "/"; /* URL mount point */ |
| m->mountpoint_len = strlen(m->mountpoint); /* length of the mountpoint */ |
| m->origin = (config->http_root && *config->http_root) ? /* File system root */ |
| config->http_root : QPID_CONSOLE_STAND_ALONE_INSTALL_DIR; |
| m->def = "index.html"; /* Default file name */ |
| m->origin_protocol = LWSMPRO_FILE; /* mount type is a directory in a filesystem */ |
| |
| struct lws_context_creation_info info = {0}; |
| info.mounts = m; |
| info.port = port; |
| info.protocols = protocols; |
| info.keepalive_timeout = 1; |
| info.ssl_cipher_list = CIPHER_LIST; |
| info.options |= LWS_SERVER_OPTION_VALIDATE_UTF8; |
| if (config->ssl_profile) { |
| info.ssl_cert_filepath = config->ssl_certificate_file; |
| info.ssl_private_key_filepath = config->ssl_private_key_file; |
| info.ssl_private_key_password = config->ssl_password; |
| info.ssl_ca_filepath = config->ssl_trusted_certificates; |
| info.options |= |
| LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT | |
| (config->ssl_required ? 0 : LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT) | |
| (config->requireAuthentication ? LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT : 0); |
| } |
| info.vhost_name = hl->host_port; |
| hl->vhost = lws_create_vhost(hs->context, &info); |
| if (hl->vhost) { |
| /* Store hl pointer in vhost */ |
| void *vp = lws_protocol_vh_priv_zalloc(hl->vhost, &protocols[0], sizeof(hl)); |
| memcpy(vp, &hl, sizeof(hl)); |
| qd_log(hs->log, QD_LOG_NOTICE, "Listening for HTTP on %s", hl->host_port); |
| return; |
| } else { |
| qd_log(hs->log, QD_LOG_NOTICE, "Error listening for HTTP on %s", hl->host_port); |
| goto error; |
| } |
| return; |
| |
| error: |
| qd_http_listener_free(hl); |
| } |
| |
| static void listener_close(qd_http_listener_t *hl, qd_http_server_t *hs) { |
| /* TODO aconway 2017-04-13: can't easily stop listeners under libwebsockets */ |
| qd_log(hs->log, QD_LOG_ERROR, "Cannot close HTTP listener %s", hl->host_port); |
| } |
| |
| /* |
| * LWS callback for un-promoted HTTP connections. |
| * Note main HTTP file serving is handled by the "mount" struct below. |
| */ |
| static int callback_http(struct lws *wsi, enum lws_callback_reasons reason, |
| void *user, void *in, size_t len) |
| { |
| switch (reason) { |
| |
| case LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED: { |
| /* TODO aconway 2017-05-15: policy support */ |
| char peer[64]; |
| lws_get_peer_simple(wsi, peer, sizeof(peer)); |
| qd_log(wsi_log(wsi), QD_LOG_DEBUG, "Incoming HTTP connection to %s from %s", |
| wsi_listener(wsi)->host_port, peer); |
| return 0; |
| } |
| case LWS_CALLBACK_PROTOCOL_DESTROY: |
| qd_http_listener_free(wsi_listener(wsi)); |
| return -1; |
| |
| case LWS_CALLBACK_HTTP: { |
| /* Called if file mount can't find the file */ |
| lws_return_http_status(wsi, HTTP_STATUS_NOT_FOUND, (char*)in); |
| return -1; |
| } |
| |
| default: |
| return 0; |
| } |
| } |
| |
| const char *qd_http_connection_name(qd_http_connection_t* hc) { return hc->name; } |
| const char *qd_http_connection_hostip(qd_http_connection_t* hc) { return hc->hostip; } |
| bool qd_http_connection_closed(qd_http_connection_t* hc) { return hc->closed; } |
| |
| /* Wake up a connection managed by the http server thread */ |
| void qd_http_connection_wake(qd_http_connection_t *c) |
| { |
| if (c && c->qd_conn->listener) { |
| qd_http_server_t *hs = wsi_server(c->wsi); |
| work_t w = { W_WAKE, c }; |
| work_push(hs, w); |
| } |
| } |
| |
| /* Callbacks for promoted AMQP over WS connections. */ |
| static int callback_amqpws(struct lws *wsi, enum lws_callback_reasons reason, |
| void *user, void *in, size_t len) |
| { |
| qd_http_server_t *hs = wsi_server(wsi); |
| qd_http_connection_t *c = (qd_http_connection_t*)user; |
| |
| switch (reason) { |
| |
| case LWS_CALLBACK_ESTABLISHED: { |
| /* Upgrade accepted HTTP connection to AMQPWS */ |
| memset(c, 0, sizeof(*c)); |
| c->wsi = wsi; |
| qd_http_listener_t *hl = wsi_listener(wsi); |
| if (hl == NULL) { |
| return unexpected_close(c->wsi, "cannot-upgrade"); |
| } |
| qd_connection_t *ctx = c->qd_conn = qd_server_connection_allocate(); |
| if (c->qd_conn == NULL) { |
| return unexpected_close(c->wsi, "out-of-memory"); |
| } |
| c->qd_conn->context = c; |
| c->qd_conn->listener = hl->listener; |
| lws_get_peer_simple(wsi, c->hostip, sizeof(c->hostip)); |
| strncpy(c->name, c->hostip, sizeof(c->name)); |
| |
| c->qd_conn->pn_conn = pn_connection(); |
| c->transport = pn_transport(); |
| c->qd_conn->collector = pn_collector(); |
| if (!c->qd_conn->pn_conn || !c->transport || !c->qd_conn->collector) { |
| if (c->qd_conn->pn_conn) pn_connection_free(c->qd_conn->pn_conn); |
| if (c->transport) pn_transport_free(c->transport); |
| if (c->qd_conn->collector) pn_collector_free(c->qd_conn->collector); |
| return unexpected_close(c->wsi, "out of memory"); |
| } |
| pn_connection_collect(c->qd_conn->pn_conn, c->qd_conn->collector); |
| |
| c->qd_conn->http = c; |
| c->qd_conn->server = hs->server; |
| c->qd_conn->connection_id = qd_server_connection_id(c->qd_conn->server); |
| /* TODO aconway 2017-05-15: no policy checks for HTTP connections */ |
| c->qd_conn->policy_counted = false; |
| const qd_server_config_t *config = hl->listener->config; |
| c->qd_conn->role = strdup(config->role); |
| pn_connection_set_context(c->qd_conn->pn_conn, ctx); |
| qd_server_decorate_connection(c->qd_conn->server, c->qd_conn->pn_conn, config); |
| |
| qd_log(hs->log, QD_LOG_DEBUG, |
| "[%"PRIu64"] upgraded HTTP connection from %s to AMQPWS", |
| qd_connection_connection_id(c->qd_conn), c->hostip); |
| pn_transport_bind(c->transport, c->qd_conn->pn_conn); |
| return handle_events(c); |
| } |
| |
| case LWS_CALLBACK_SERVER_WRITEABLE: { |
| if (handle_events(c)) return -1; |
| ssize_t pending = pn_transport_pending(c->transport); |
| if (pending > 0) { |
| pn_bytes_t dbuf = pn_bytes(pending, pn_transport_head(c->transport)); |
| /* lws_write() demands LWS_PRE bytes of free space before the data, |
| * so we must copy from the transport buffer to larger temporary wbuf |
| */ |
| buffer_set_size(&c->wbuf, LWS_PRE + dbuf.size); |
| if (c->wbuf.start == NULL) { |
| return unexpected_close(c->wsi, "out-of-memory"); |
| } |
| unsigned char* buf = (unsigned char*)c->wbuf.start + LWS_PRE; |
| memcpy(buf, dbuf.start, dbuf.size); |
| ssize_t wrote = lws_write(wsi, buf, dbuf.size, LWS_WRITE_BINARY); |
| if (wrote < 0) { |
| pn_transport_close_head(c->transport); |
| return unexpected_close(c->wsi, "write-error"); |
| } else { |
| pn_transport_pop(c->transport, wrote); |
| } |
| } |
| return handle_events(c); |
| } |
| |
| case LWS_CALLBACK_RECEIVE: { |
| while (len > 0) { |
| if (handle_events(c)) return -1; |
| ssize_t cap = pn_transport_capacity(c->transport); |
| if (cap <= 0) { |
| return unexpected_close(c->wsi, "unexpected-close"); |
| } |
| pn_rwbytes_t dbuf = pn_rwbytes(cap, pn_transport_tail(c->transport)); |
| size_t copy = (len < dbuf.size) ? len : dbuf.size; |
| memcpy(dbuf.start, in, copy); |
| pn_transport_process(c->transport, copy); |
| len -= copy; |
| in = (char*)in + copy; |
| } |
| return handle_events(c); |
| } |
| |
| case LWS_CALLBACK_USER: { |
| pn_timestamp_t next_tick = pn_transport_tick(c->transport, hs->now); |
| if (next_tick && next_tick > hs->now && next_tick < hs->next_tick) { |
| hs->next_tick = next_tick; |
| } |
| return handle_events(c); |
| } |
| |
| case LWS_CALLBACK_WS_PEER_INITIATED_CLOSE: { |
| pn_transport_close_tail(c->transport); |
| return handle_events(c); |
| } |
| |
| case LWS_CALLBACK_CLOSED: { |
| qd_log(wsi_log(wsi), QD_LOG_DEBUG, "HTTP connection closed to %s from %s", |
| wsi_listener(wsi)->host_port, c->name); |
| if (c->transport) { |
| pn_transport_close_tail(c->transport); |
| pn_transport_close_head(c->transport); |
| handle_events(c); |
| } |
| pn_transport_free(c->transport); |
| pn_connection_free(c->qd_conn->pn_conn); |
| pn_collector_free(c->qd_conn->collector); |
| qd_connection_free(c->qd_conn); |
| free(c->wbuf.start); |
| return -1; |
| } |
| |
| default: |
| return 0; |
| } |
| } |
| |
| #define DEFAULT_TICK 1000 |
| |
| static pn_timestamp_t now(void) |
| { |
| struct timespec now; |
| #ifdef CLOCK_MONOTONIC_COARSE |
| int cid = CLOCK_MONOTONIC_COARSE; |
| #else |
| int cid = CLOCK_MONOTONIC; |
| #endif |
| if (clock_gettime(cid, &now)) { |
| qd_error_errno(errno, "clock_gettime"); |
| exit(1); |
| } |
| return ((pn_timestamp_t)now.tv_sec) * 1000 + (now.tv_nsec / 1000000); |
| } |
| |
| static void* http_thread_run(void* v) { |
| qd_http_server_t *hs = v; |
| qd_log(hs->log, QD_LOG_INFO, "HTTP server thread running"); |
| int result = 0; |
| while(result >= 0) { |
| /* Send a USER event to run transport ticks, may decrease hs->next_tick. */ |
| hs->now = now(); |
| hs->next_tick = hs->now + DEFAULT_TICK; |
| lws_callback_all_protocol(hs->context, &protocols[1], LWS_CALLBACK_USER); |
| lws_callback_all_protocol(hs->context, &protocols[2], LWS_CALLBACK_USER); |
| pn_millis_t timeout = (hs->next_tick > hs->now) ? hs->next_tick - hs->now : 1; |
| |
| /* Run LWS event loop*/ |
| result = lws_service(hs->context, timeout); |
| |
| /* Process any work items on the queue */ |
| for (work_t w = work_pop(hs); w.type != W_NONE; w = work_pop(hs)) { |
| switch (w.type) { |
| case W_NONE: |
| break; |
| case W_STOP: |
| result = -1; |
| break; |
| case W_LISTEN: |
| listener_start((qd_http_listener_t*)w.value, hs); |
| break; |
| case W_CLOSE: |
| listener_close((qd_http_listener_t*)w.value, hs); |
| break; |
| case W_WAKE: { |
| qd_http_connection_t *c = w.value; |
| pn_collector_put(c->qd_conn->collector, PN_OBJECT, c->qd_conn->pn_conn, |
| PN_CONNECTION_WAKE); |
| handle_events(c); |
| break; |
| } |
| } |
| } |
| } |
| qd_log(hs->log, QD_LOG_INFO, "HTTP server thread exit"); |
| return NULL; |
| } |
| |
| void qd_http_server_free(qd_http_server_t *hs) { |
| if (!hs) return; |
| if (hs->thread) { |
| /* Thread safe, stop via work queue then clean up */ |
| work_t work = { W_STOP, NULL }; |
| work_push(hs, work); |
| sys_thread_join(hs->thread); |
| sys_thread_free(hs->thread); |
| hs->thread = NULL; |
| } |
| work_queue_destroy(&hs->work); |
| if (hs->context) lws_context_destroy(hs->context); |
| free(hs); |
| } |
| |
| qd_http_server_t *qd_http_server(qd_server_t *s, qd_log_source_t *log) { |
| log_init(); |
| qd_http_server_t *hs = calloc(1, sizeof(*hs)); |
| if (hs) { |
| work_queue_init(&hs->work); |
| struct lws_context_creation_info info = {0}; |
| info.gid = info.uid = -1; |
| info.user = hs; |
| info.server_string = QD_CONNECTION_PROPERTY_PRODUCT_VALUE; |
| info.options = LWS_SERVER_OPTION_EXPLICIT_VHOSTS | |
| LWS_SERVER_OPTION_SKIP_SERVER_CANONICAL_NAME | |
| LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT; |
| info.max_http_header_pool = 32; |
| info.timeout_secs = 1; |
| |
| hs->context = lws_create_context(&info); |
| hs->server = s; |
| hs->log = log; /* For messages from this file */ |
| if (!hs->context) { |
| qd_log(hs->log, QD_LOG_CRITICAL, "No memory starting HTTP server"); |
| qd_http_server_free(hs); |
| hs = NULL; |
| } |
| } |
| return hs; |
| } |
| |
| /* Thread safe calls that put items on work queue */ |
| |
| qd_http_listener_t *qd_http_server_listen(qd_http_server_t *hs, qd_listener_t *li) |
| { |
| sys_mutex_lock(hs->work.lock); |
| if (!hs->thread) { |
| hs->thread = sys_thread(http_thread_run, hs); |
| } |
| bool ok = hs->thread; |
| sys_mutex_unlock(hs->work.lock); |
| if (!ok) return NULL; |
| |
| qd_http_listener_t *hl = qd_http_listener(hs, li); |
| if (hl) { |
| work_t w = { W_LISTEN, hl }; |
| work_push(hs, w); |
| } |
| return hl; |
| } |
| |
| void qd_http_listener_close(qd_http_listener_t *hl) |
| { |
| work_t w = { W_CLOSE, hl }; |
| work_push(hl->server, w); |
| } |
| |
| static qd_http_server_t *wsi_server(struct lws *wsi) { |
| return (qd_http_server_t*)lws_context_user(lws_get_context(wsi)); |
| } |
| |
| static qd_http_listener_t *wsi_listener(struct lws *wsi) { |
| qd_http_listener_t *hl = NULL; |
| struct lws_vhost *vhost = lws_get_vhost(wsi); |
| if (vhost) { /* Get qd_http_listener from vhost data */ |
| void *vp = lws_protocol_vh_priv_get(vhost, &protocols[0]); |
| memcpy(&hl, vp, sizeof(hl)); |
| } |
| return hl; |
| } |
| |
| static qd_log_source_t *wsi_log(struct lws *wsi) { |
| return wsi_server(wsi)->log; |
| } |