AFB_MODE_GLOBAL
};
-/*
-typedef enum AFB_pluginE AFB_pluginE;
-typedef enum AFB_sessionE AFB_sessionE;
-typedef void (*AFB_apiCB)(struct afb_req);
-typedef void (*AFB_freeCtxCB)(void*);
-typedef struct AFB_restapi AFB_restapi;
-typedef struct AFB_plugin AFB_plugin;
-*/
+struct afb_poll;
struct AFB_interface
{
- int verbose;
+ int verbosity;
enum AFB_Mode mode;
+ struct afb_poll (*poll_open)(int fd, void *closure);
};
extern const struct AFB_plugin *pluginRegister (const struct AFB_interface *interface);
--- /dev/null
+/*
+ * Copyright 2016 IoT.bzh
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed 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.
+ */
+
+struct afb_poll_itf
+{
+ int (*on_readable)(void *, void (*cb)(void *));
+ int (*on_writable)(void *, void (*cb)(void *));
+ int (*on_hangup)(void *, void (*cb)(void *));
+ void (*close)(void *data);
+};
+
+struct afb_poll
+{
+ const struct afb_poll_itf *itf;
+ void *data;
+};
+
struct afb_req {
const struct afb_req_itf *itf;
void *data;
- void *context;
+ void **context;
};
static inline struct afb_arg afb_req_get(struct afb_req req, const char *name)
static void embed_call_void(struct afb_req request, const char *method)
{
struct json_object *obj = jbus_call_sj_sync(jbus, method, "true");
- if (interface->verbose)
+ if (interface->verbosity)
fprintf(stderr, "(afm-main-plugin) %s(true) -> %s\n", method, obj ? json_object_to_json_string(obj) : "NULL");
if (obj == NULL) {
afb_req_fail(request, "failed", "framework daemon failure");
return;
}
obj = jbus_call_sj_sync(jbus, method, sid);
- if (interface->verbose)
+ if (interface->verbosity)
fprintf(stderr, "(afm-main-plugin) %s(%s) -> %s\n", method, sid, obj ? json_object_to_json_string(obj) : "NULL");
free(sid);
if (obj == NULL) {
return;
}
obj = jbus_call_sj_sync(jbus, method, id);
- if (interface->verbose)
+ if (interface->verbosity)
fprintf(stderr, "(afm-main-plugin) %s(%s) -> %s\n", method, id,
obj ? json_object_to_json_string(obj) : "NULL");
if (obj == NULL) {
/* calls the service */
obj = jbus_call_sj_sync(jbus, _start_, query);
- if (interface->verbose)
+ if (interface->verbosity)
fprintf(stderr, "(afm-main-plugin) start(%s) -> %s\n", query, obj ? json_object_to_json_string(obj) : "NULL");
free(query);
}
obj = jbus_call_sj_sync(jbus, _install_, query);
- if (interface->verbose)
+ if (interface->verbosity)
fprintf(stderr, "(afm-main-plugin) install(%s) -> %s\n", query, obj ? json_object_to_json_string(obj) : "NULL");
free(query);
#include "utils-jbus.h"
-#define MAX_JSON_DEPTH 5
+/*
+ * max depth of json messages
+ */
+#define MAX_JSON_DEPTH 10
-struct jreq;
-struct jservice;
-struct jbus;
+/*
+ * errors messages generated by jbus
+ */
+#if defined(NO_JSON_ERROR_STRING)
+static const char invalid_request_string[] = "invalid request";
+static const char out_of_memory_string[] = "out of memory";
+#else
+static const char invalid_request_string[] = "\"invalid request\"";
+static const char out_of_memory_string[] = "\"out of memory\"";
+#endif
-/* structure for handled requests */
+/*
+ * structure for handled requests
+ */
struct jreq {
- DBusConnection *connection;
- DBusMessage *request;
+ DBusConnection *connection; /* connection of the request */
+ DBusMessage *request; /* message of the request */
};
-/* structure for recorded services */
+/*
+ * structure for services
+ */
struct jservice {
- struct jservice *next;
- char *method;
- void (*oncall_s)(struct jreq *, const char *, void *);
- void (*oncall_j)(struct jreq *, struct json_object *, void *);
- void *data;
+ struct jservice *next; /* link to the next service */
+ char *method; /* method name for the service */
+ void (*oncall_s) (struct jreq *, const char *, void *);
+ /* string callback */
+ void (*oncall_j) (struct jreq *, struct json_object *, void *);
+ /* json callback */
+ void *data; /* closure data for the callbacks */
};
-/* structure for signal handlers */
+/*
+ * structure for signals
+ */
struct jsignal {
- struct jsignal *next;
- char *name;
- void (*onsignal_s)(const char *, void *);
- void (*onsignal_j)(struct json_object *, void *);
- void *data;
+ struct jsignal *next; /* link to the next signal */
+ char *name; /* name of the expected signal */
+ void (*onsignal_s) (const char *, void *);
+ /* string callback */
+ void (*onsignal_j) (struct json_object *, void *);
+ /* json callback */
+ void *data; /* closure data for the callbacks */
};
-/* structure for recording asynchronous requests */
+/*
+ * structure for asynchronous requests (resp-onse w-aiter)
+ */
struct jrespw {
- struct jrespw *next;
- dbus_uint32_t serial;
- void *data;
- void (*onresp_s)(int, const char*, void *);
- void (*onresp_j)(int, struct json_object*, void *);
+ struct jrespw *next; /* next asynchronous */
+ dbus_uint32_t serial; /* serial dbus number */
+ void *data; /* closure data for the callbacks */
+ void (*onresp_s) (int, const char *, void *);
+ /* string callback */
+ void (*onresp_j) (int, struct json_object *, void *);
+ /* json callback */
};
-/* structure for synchronous requests */
+/*
+ * structure for synchronous requests
+ */
struct respsync {
- int replied;
- char *value;
+ int replied; /* boolean flag indicating reply */
+ char *value; /* copy of the returned value */
};
-/* structure for handling either client or server jbus on dbus */
+/*
+ * structure for handling either client or server jbus on dbus
+ */
struct jbus {
- int refcount;
- struct json_tokener *tokener;
- struct jservice *services;
- DBusConnection *connection;
- struct jsignal *signals;
- struct jrespw *waiters;
- char *path;
- char *name;
- int watchnr;
- int watchfd;
- short watchflags;
+ int refcount; /* referenced how many time */
+ DBusConnection *connection; /* connection to DBU */
+ struct json_tokener *tokener; /* string to json tokenizer */
+ struct jservice *services; /* first service */
+ struct jsignal *signals; /* first signal */
+ struct jrespw *waiters; /* first response waiter */
+ char *path; /* dbus path */
+ char *name; /* dbus name */
+ int watchnr; /* counter of watching need */
+ int watchfd; /* file to watch */
+ short watchflags; /* watched flags */
};
/*********************** STATIC COMMON METHODS *****************/
+/*
+ * Frees the ressources attached to a request
+ */
static inline void free_jreq(struct jreq *jreq)
{
dbus_message_unref(jreq->request);
free(jreq);
}
+/*
+ * Replies the error "out of memory".
+ * This function is intended to be used in services when an
+ * allocation fails. Thus, it set errno to ENOMEM and
+ * returns -1.
+ */
static inline int reply_out_of_memory(struct jreq *jreq)
{
- static const char out_of_memory[] = "out of memory";
- jbus_reply_error_s(jreq, out_of_memory);
+ jbus_reply_error_s(jreq, out_of_memory_string);
errno = ENOMEM;
return -1;
}
-static inline int reply_invalid_request(struct jreq *jreq)
-{
- static const char invalid_request[] = "invalid request";
- jbus_reply_error_s(jreq, invalid_request);
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-static int matchitf(struct jbus *jbus, DBusMessage *message)
+/*
+ * Checks if the incoming 'message' matches the interface
+ * linked to 'jbus'.
+ *
+ * Returns 1 if it matches or 0 wether it does not matches.
+ */
+static int matchitf(struct jbus *jbus, DBusMessage * message)
{
const char *itf = dbus_message_get_interface(message);
return itf != NULL && !strcmp(itf, jbus->name);
}
+/*
+ * Adds to 'jbus' a service of name 'method'. The service is
+ * performed by one of the callback 'oncall_s' (for string) or
+ * 'oncall_j' (for json) that will receive the request and the
+ * closure parameter 'data'.
+ *
+ * returns 0 in case of success or -1 in case of error (ENOMEM).
+ */
static int add_service(
struct jbus *jbus,
const char *method,
- void (*oncall_s)(struct jreq*, const char*, void*),
- void (*oncall_j)(struct jreq*, struct json_object*, void*),
- void *data
-)
+ void (*oncall_s) (struct jreq *, const char *, void *),
+ void (*oncall_j) (struct jreq *, struct json_object *, void *),
+ void *data)
{
struct jservice *srv;
/* allocation */
- srv = malloc(sizeof * srv);
+ srv = malloc(sizeof *srv);
if (srv == NULL) {
errno = ENOMEM;
goto error;
return 0;
-error2:
+ error2:
free(srv);
-error:
+ error:
return -1;
}
+/*
+ * Adds to 'jbus' a handler for the signal of 'name' emmited by
+ * the sender and the interface that 'jbus' is linked to.
+ * The signal is handled by one of the callback 'onsignal_s'
+ * (for string) or 'onsignal_j' (for json) that will receive
+ * parameters associated with the signal and the closure
+ * parameter 'data'.
+ *
+ * returns 0 in case of success or -1 in case of error (ENOMEM).
+ */
static int add_signal(
- struct jbus *jbus,
- const char *name,
- void (*onsignal_s)(const char*, void*),
- void (*onsignal_j)(struct json_object*, void*),
- void *data
-)
+ struct jbus *jbus,
+ const char *name,
+ void (*onsignal_s) (const char *, void *),
+ void (*onsignal_j) (struct json_object *, void *),
+ void *data)
{
char *rule;
struct jsignal *sig;
/* record the signal */
if (jbus->signals == NULL) {
-#if 0
- if (0 >= asprintf(&rule, "type='signal',interface='%s',path='%s'", jbus->name, jbus->path))
-#else
- if (0 >= asprintf(&rule, "type='signal',sender='%s',interface='%s',path='%s'", jbus->name, jbus->name, jbus->path))
-#endif
+ if (0 >= asprintf(&rule,
+ "type='signal',sender='%s',interface='%s',path='%s'",
+ jbus->name, jbus->name, jbus->path))
return -1;
dbus_bus_add_match(jbus->connection, rule, NULL);
free(rule);
}
/* allocation */
- sig = malloc(sizeof * sig);
+ sig = malloc(sizeof *sig);
if (sig == NULL)
goto error;
sig->name = strdup(name);
return 0;
-error2:
+ error2:
free(sig);
-error:
+ error:
errno = ENOMEM;
return -1;
}
+/*
+ * Creates a message for 'method' with one string parameter being 'query'
+ * and sends it to the destination, object and interface linked to 'jbus'.
+ *
+ * Adds to 'jbus' the response handler defined by the callbacks 'onresp_s'
+ * (for string) and 'onresp_j' (for json) and the closure parameter 'data'.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
static int call(
- struct jbus *jbus,
- const char *method,
- const char *query,
- void (*onresp_s)(int status, const char *response, void *data),
- void (*onresp_j)(int status, struct json_object *response, void *data),
- void *data
-)
+ struct jbus *jbus,
+ const char *method,
+ const char *query,
+ void (*onresp_s) (int, const char *, void *),
+ void (*onresp_j) (int, struct json_object *, void *),
+ void *data)
{
DBusMessage *msg;
struct jrespw *resp;
- resp = malloc(sizeof * resp);
+ /* allocates the response structure */
+ resp = malloc(sizeof *resp);
if (resp == NULL) {
errno = ENOMEM;
goto error;
}
- msg = dbus_message_new_method_call(jbus->name, jbus->path, jbus->name, method);
+ /* creates the message */
+ msg = dbus_message_new_method_call(jbus->name, jbus->path, jbus->name,
+ method);
if (msg == NULL) {
errno = ENOMEM;
goto error2;
}
- if (!dbus_message_append_args(msg, DBUS_TYPE_STRING, &query, DBUS_TYPE_INVALID)) {
+ /* fill it */
+ if (!dbus_message_append_args
+ (msg, DBUS_TYPE_STRING, &query, DBUS_TYPE_INVALID)) {
errno = ENOMEM;
goto error3;
}
+ /* send it */
if (!dbus_connection_send(jbus->connection, msg, &resp->serial)) {
+ /* TODO: which error? */
goto error3;
}
+ /* release the message that is not more used */
dbus_message_unref(msg);
+
+ /* fulfill the response structure */
resp->data = data;
resp->onresp_s = onresp_s;
resp->onresp_j = onresp_j;
+
+ /* links the response to list of reponse waiters */
resp->next = jbus->waiters;
jbus->waiters = resp;
return 0;
-error3:
+ error3:
dbus_message_unref(msg);
-error2:
+ error2:
free(resp);
-error:
+ error:
return -1;
}
+/*
+ * Callback function for synchronous calls.
+ * This function fills the respsync structure pointed by 'data'
+ * with the copy of the answer.
+ */
static void sync_of_replies(int status, const char *value, void *data)
{
struct respsync *s = data;
s->replied = 1;
}
-static int parse(struct jbus *jbus, const char *msg, struct json_object **obj)
+/*
+ * Parses the json-string 'msg' to create a json object stored
+ * in 'obj'. It uses the tokener of 'jbus'. This is a small
+ * improvement to avoid recreation of tokeners.
+ *
+ * Returns 1 in case of success and put the result in *'obj'.
+ * Returns 0 in case of error and put NULL in *'obj'.
+ */
+static int jparse(struct jbus *jbus, const char *msg, struct json_object **obj)
{
json_tokener_reset(jbus->tokener);
*obj = json_tokener_parse_ex(jbus->tokener, msg, -1);
return 0;
}
-static DBusHandlerResult incoming_resp(DBusConnection *connection, DBusMessage *message, struct jbus *jbus, int iserror)
+/*********************** STATIC DBUS MESSAGE HANDLING *****************/
+
+/*
+ * Handles incomming responses 'message' on 'jbus'. Response are
+ * either expected if 'iserror' == 0 or errors if 'iserror' != 0.
+ *
+ * Returns DBUS_HANDLER_RESULT_HANDLED or DBUS_HANDLER_RESULT_NOT_YET_HANDLED
+ * as defined by the dbus function 'dbus_connection_add_filter'.
+ */
+static DBusHandlerResult incoming_resp(
+ struct jbus *jbus,
+ DBusMessage * message,
+ int iserror)
{
int status;
const char *str;
*prv = jrw->next;
/* retrieve the string value */
- if (dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID))
+ if (dbus_message_get_args
+ (message, NULL, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID))
status = 0;
else {
status = -1;
if (jrw->onresp_s)
jrw->onresp_s(iserror ? -1 : status, str, jrw->data);
else {
- status = parse(jbus, str, &reply) - 1;
+ status = jparse(jbus, str, &reply) - 1;
jrw->onresp_j(iserror ? -1 : status, reply, jrw->data);
json_object_put(reply);
}
return DBUS_HANDLER_RESULT_HANDLED;
}
-static DBusHandlerResult incoming_call(DBusConnection *connection, DBusMessage *message, struct jbus *jbus)
+/*
+ * Handles incomming on 'jbus' method calls for 'message'.
+ *
+ * Returns DBUS_HANDLER_RESULT_HANDLED or DBUS_HANDLER_RESULT_NOT_YET_HANDLED
+ * as defined by the dbus function 'dbus_connection_add_filter'.
+ */
+static DBusHandlerResult incoming_call(
+ struct jbus *jbus,
+ DBusMessage * message)
{
struct jservice *srv;
struct jreq *jreq;
if (method == NULL)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
srv = jbus->services;
- while(srv != NULL && strcmp(method, srv->method))
+ while (srv != NULL && strcmp(method, srv->method))
srv = srv->next;
if (srv == NULL)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
- /* handle the message */
- jreq = malloc(sizeof * jreq);
+ /* creates and init the jreq structure */
+ jreq = malloc(sizeof *jreq);
if (jreq == NULL)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
jreq->request = dbus_message_ref(message);
jreq->connection = dbus_connection_ref(jbus->connection);
-
- /* retrieve the string value */
- if (!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID))
- return reply_invalid_request(jreq);
+
+ /* retrieve the string parameter of the message */
+ if (!dbus_message_get_args
+ (message, NULL, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID))
+ goto invalid_request;
+
+ /* send the message to the callback */
if (srv->oncall_s) {
/* handling strings only */
srv->oncall_s(jreq, str, srv->data);
- }
- else {
+ } else {
/* handling json only */
- if (!parse(jbus, str, &query))
- return reply_invalid_request(jreq);
+ if (!jparse(jbus, str, &query))
+ goto invalid_request;
srv->oncall_j(jreq, query, srv->data);
json_object_put(query);
}
return DBUS_HANDLER_RESULT_HANDLED;
+
+invalid_request:
+ jbus_reply_error_s(jreq, invalid_request_string);
+ return DBUS_HANDLER_RESULT_HANDLED;
}
-static DBusHandlerResult incoming_signal(DBusConnection *connection, DBusMessage *message, struct jbus *jbus)
+/*
+ * Handles incomming on 'jbus' signal propagated with 'message'.
+ *
+ * This is a design choice to ignore invalid signals.
+ *
+ * Returns DBUS_HANDLER_RESULT_HANDLED or DBUS_HANDLER_RESULT_NOT_YET_HANDLED
+ * as defined by the dbus function 'dbus_connection_add_filter'.
+ */
+static DBusHandlerResult incoming_signal(
+ struct jbus *jbus,
+ DBusMessage * message)
{
struct jsignal *sig;
const char *str;
const char *name;
struct json_object *obj;
- /* search for the service */
+ /* search for the signal name */
if (!matchitf(jbus, message))
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
name = dbus_message_get_member(message);
if (name == NULL)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
sig = jbus->signals;
- while(sig != NULL && strcmp(name, sig->name))
+ while (sig != NULL && strcmp(name, sig->name))
sig = sig->next;
if (sig == NULL)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
/* retrieve the string value */
- if (dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID)) {
+ if (dbus_message_get_args
+ (message, NULL, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID)) {
if (sig->onsignal_s) {
/* handling strings only */
sig->onsignal_s(str, sig->data);
- }
- else {
- /* handling json only */
- if (parse(jbus, str, &obj)) {
+ } else {
+ /* handling json only (if valid) */
+ if (jparse(jbus, str, &obj)) {
sig->onsignal_j(obj, sig->data);
json_object_put(obj);
}
return DBUS_HANDLER_RESULT_HANDLED;
}
-static DBusHandlerResult incoming(DBusConnection *connection, DBusMessage *message, void *data)
+/*
+ * Filters incomming messages as defined by the dbus function
+ * 'dbus_connection_add_filter'.
+ * Returns DBUS_HANDLER_RESULT_HANDLED or DBUS_HANDLER_RESULT_NOT_YET_HANDLED.
+ */
+static DBusHandlerResult incoming(
+ DBusConnection * connection,
+ DBusMessage * message,
+ void *data)
{
- switch(dbus_message_get_type(message)) {
+ struct jbus *jbus = data;
+ switch (dbus_message_get_type(message)) {
case DBUS_MESSAGE_TYPE_METHOD_CALL:
- return incoming_call(connection, message, (struct jbus*)data);
+ return incoming_call(jbus, message);
case DBUS_MESSAGE_TYPE_METHOD_RETURN:
- return incoming_resp(connection, message, (struct jbus*)data, 0);
+ return incoming_resp(jbus, message, 0);
case DBUS_MESSAGE_TYPE_ERROR:
- return incoming_resp(connection, message, (struct jbus*)data, 1);
+ return incoming_resp(jbus, message, 1);
case DBUS_MESSAGE_TYPE_SIGNAL:
- return incoming_signal(connection, message, (struct jbus*)data);
+ return incoming_signal(jbus, message);
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
-static void watchset(DBusWatch *watch, struct jbus *jbus)
+/*********************** STATIC DBUS WATCH/POLLING INTERFACE **********/
+
+/*
+ * Set the watched flags of 'jbus' following what DBUS expects by 'watch'
+ */
+static void watchset(DBusWatch * watch, struct jbus *jbus)
{
unsigned int flags;
short wf;
wf |= POLLIN;
if (flags & DBUS_WATCH_WRITABLE)
wf |= POLLOUT;
- }
- else {
+ } else {
if (flags & DBUS_WATCH_READABLE)
wf &= ~POLLIN;
if (flags & DBUS_WATCH_WRITABLE)
jbus->watchflags = wf;
}
-static void watchdel(DBusWatch *watch, void *data)
+/*
+ * DBUS Callback for removing a 'watch'.
+ * See function 'dbus_connection_set_watch_functions'
+ */
+static void watchdel(DBusWatch * watch, void *data)
{
struct jbus *jbus = data;
jbus->watchnr--;
}
-static void watchtoggle(DBusWatch *watch, void *data)
+/*
+ * DBUS Callback for changing a 'watch'.
+ * See function 'dbus_connection_set_watch_functions'
+ */
+static void watchtoggle(DBusWatch * watch, void *data)
{
struct jbus *jbus = data;
watchset(watch, jbus);
}
-static dbus_bool_t watchadd(DBusWatch *watch, void *data)
+/*
+ * DBUS Callback for adding a 'watch'.
+ * See function 'dbus_connection_set_watch_functions'
+ */
+static dbus_bool_t watchadd(DBusWatch * watch, void *data)
{
struct jbus *jbus = data;
if (jbus->watchnr == 0) {
jbus->watchfd = dbus_watch_get_unix_fd(watch);
jbus->watchflags = 0;
- }
- else if (jbus->watchfd != dbus_watch_get_unix_fd(watch))
+ } else if (jbus->watchfd != dbus_watch_get_unix_fd(watch))
return FALSE;
jbus->watchnr++;
watchset(watch, jbus);
return TRUE;
}
-/************************** MAIN FUNCTIONS *****************************************/
+/********************* MAIN FUNCTIONS *****************************************/
+/*
+ * Creates a 'jbus' bound to DBUS system using 'path' and returns it.
+ * See 'create_jbus'
+ */
struct jbus *create_jbus_system(const char *path)
{
return create_jbus(path, 0);
}
+/*
+ * Creates a 'jbus' bound to DBUS session using 'path' and returns it.
+ * See 'create_jbus'
+ */
struct jbus *create_jbus_session(const char *path)
{
return create_jbus(path, 1);
}
+/*
+ * Creates a 'jbus' bound the 'path' and it derived names and linked
+ * either to the DBUS SYSTEM when 'session' is nul or to the DBUS SESSION
+ * if 'session' is not nul.
+ *
+ * The parameter 'path' is intended to be the path of a DBUS single object.
+ * Single means that it exists only one instance of the object on the
+ * given bus. That path implies 2 derived DBUS names:
+ * 1. the destination name of the program that handles the object
+ * 2. the interface name of the object
+ * These names are derived by removing the heading slash (/) and
+ * by replacing all occurences of slashes by dots.
+ * For example, passing path = /a/b/c means that the object /a/b/c is
+ * handled by the destination a.b.c and replies to the interface a.b.c
+ *
+ * Returns the created jbus or NULL in case of error.
+ */
struct jbus *create_jbus(const char *path, int session)
{
struct jbus *jbus;
char *name;
- /* create the context and connect */
- jbus = calloc(1, sizeof * jbus);
+ /* create the jbus object */
+ jbus = calloc(1, sizeof *jbus);
if (jbus == NULL) {
errno = ENOMEM;
goto error;
}
jbus->refcount = 1;
+
+ /* create the tokener */
jbus->tokener = json_tokener_new_ex(MAX_JSON_DEPTH);
if (jbus->tokener == NULL) {
errno = ENOMEM;
goto error2;
}
+
+ /* records the path */
jbus->path = strdup(path);
if (jbus->path == NULL) {
errno = ENOMEM;
goto error2;
}
- while(*path == '/') path++;
+
+ /* makes the name from the path */
+ while (*path == '/')
+ path++;
jbus->name = name = strdup(path);
if (name == NULL) {
errno = ENOMEM;
goto error2;
}
- while(*name) {
+ while (*name) {
if (*name == '/')
*name = '.';
name++;
goto error2;
}
- /* connect */
- jbus->connection = dbus_bus_get(session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, NULL);
+ /* connect and init */
+ jbus->connection = dbus_bus_get(session ? DBUS_BUS_SESSION
+ : DBUS_BUS_SYSTEM, NULL);
if (jbus->connection == NULL
- || !dbus_connection_add_filter(jbus->connection, incoming, jbus, NULL)
- || !dbus_connection_set_watch_functions(jbus->connection, watchadd, watchdel, watchtoggle, jbus, NULL))
+ || !dbus_connection_add_filter(jbus->connection, incoming, jbus,
+ NULL)
+ || !dbus_connection_set_watch_functions(jbus->connection, watchadd,
+ watchdel, watchtoggle, jbus, NULL))
goto error2;
return jbus;
-error2:
+ error2:
jbus_unref(jbus);
-error:
+ error:
return NULL;
}
+/*
+ * Adds one reference to 'jbus'.
+ */
void jbus_addref(struct jbus *jbus)
{
jbus->refcount++;
}
+/*
+ * Removes one reference to 'jbus'. Destroys 'jbus' and it related
+ * data if the count of references decrease to zero.
+ */
void jbus_unref(struct jbus *jbus)
{
struct jservice *srv;
if (!--jbus->refcount) {
if (jbus->connection != NULL)
dbus_connection_unref(jbus->connection);
- while((srv = jbus->services) != NULL) {
+ while ((srv = jbus->services) != NULL) {
jbus->services = srv->next;
free(srv->method);
free(srv);
}
}
+/*
+ * Replies an error of string 'error' to the request handled by 'jreq'.
+ * Also destroys the request 'jreq' that must not be used later.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
int jbus_reply_error_s(struct jreq *jreq, const char *error)
{
int rc = -1;
DBusMessage *message;
- message = dbus_message_new_error(jreq->request, DBUS_ERROR_FAILED, error);
+ message = dbus_message_new_error(jreq->request, DBUS_ERROR_FAILED,
+ error);
if (message == NULL)
errno = ENOMEM;
else {
return rc;
}
+/*
+ * Replies an error of json 'reply' to the request handled by 'jreq'.
+ * Also destroys the request 'jreq' that must not be used later.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
int jbus_reply_error_j(struct jreq *jreq, struct json_object *reply)
{
const char *str = json_object_to_json_string(reply);
return str ? jbus_reply_error_s(jreq, str) : reply_out_of_memory(jreq);
}
+/*
+ * Replies normally the string 'reply' to the request handled by 'jreq'.
+ * Also destroys the request 'jreq' that must not be used later.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
int jbus_reply_s(struct jreq *jreq, const char *reply)
{
int rc = -1;
if (message == NULL)
return reply_out_of_memory(jreq);
- if (!dbus_message_append_args(message, DBUS_TYPE_STRING, &reply, DBUS_TYPE_INVALID)) {
+ if (!dbus_message_append_args
+ (message, DBUS_TYPE_STRING, &reply, DBUS_TYPE_INVALID)) {
dbus_message_unref(message);
return reply_out_of_memory(jreq);
}
return rc;
}
+/*
+ * Replies normally the json 'reply' to the request handled by 'jreq'.
+ * Also destroys the request 'jreq' that must not be used later.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
int jbus_reply_j(struct jreq *jreq, struct json_object *reply)
{
const char *str = json_object_to_json_string(reply);
return str ? jbus_reply_s(jreq, str) : reply_out_of_memory(jreq);
}
+/*
+ * Sends from 'jbus' the signal of 'name' handling the string 'content'.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
int jbus_send_signal_s(struct jbus *jbus, const char *name, const char *content)
{
int rc = -1;
goto error;
if (!dbus_message_set_sender(message, jbus->name)
- || !dbus_message_append_args(message, DBUS_TYPE_STRING, &content, DBUS_TYPE_INVALID)) {
+ || !dbus_message_append_args(message, DBUS_TYPE_STRING, &content,
+ DBUS_TYPE_INVALID)) {
dbus_message_unref(message);
goto error;
}
dbus_message_unref(message);
return rc;
-error:
+ error:
errno = ENOMEM;
return -1;
}
-int jbus_send_signal_j(struct jbus *jbus, const char *name, struct json_object *content)
+/*
+ * Sends from 'jbus' the signal of 'name' handling the json 'content'.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
+int jbus_send_signal_j(struct jbus *jbus, const char *name,
+ struct json_object *content)
{
const char *str = json_object_to_json_string(content);
if (str == NULL) {
return jbus_send_signal_s(jbus, name, str);
}
-int jbus_add_service_s(struct jbus *jbus, const char *method, void (*oncall)(struct jreq *, const char *, void *), void *data)
+/*
+ * Adds to 'jbus' a service handling calls to the 'method' using
+ * the "string" callback 'oncall' and the closure value 'data'.
+ *
+ * The callback 'oncall' is invoked for handling incoming method
+ * calls. It receives 3 parameters:
+ * 1. struct jreq *: a handler to data to be used for replying
+ * 2. const char *: the received string
+ * 3. void *: the closure 'data' set by this function
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
+int jbus_add_service_s(
+ struct jbus *jbus,
+ const char *method,
+ void (*oncall) (struct jreq *, const char *, void *),
+ void *data)
{
return add_service(jbus, method, oncall, NULL, data);
}
-int jbus_add_service_j(struct jbus *jbus, const char *method, void (*oncall)(struct jreq *, struct json_object *, void *), void *data)
+/*
+ * Adds to 'jbus' a service handling calls to the 'method' using
+ * the "json" callback 'oncall' and the closure value 'data'.
+ *
+ * The callback 'oncall' is invoked for handling incoming method
+ * calls. It receives 3 parameters:
+ * 1. struct jreq *: a handler to data to be used for replying
+ * 2. struct json_object *: the received json
+ * 3. void *: the closure 'data' set by this function
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
+int jbus_add_service_j(
+ struct jbus *jbus,
+ const char *method,
+ void (*oncall) (struct jreq *, struct json_object *, void *),
+ void *data)
{
return add_service(jbus, method, NULL, oncall, data);
}
+/*
+ * Start to serve: activate services declared for 'jbus'.
+ * This function, in fact, declares 'jbus' as the receiver
+ * for calls to the destination derived from the path set at
+ * 'jbus' creation.
+ * It also allows 'jbus' to emit signals of that origin.
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
int jbus_start_serving(struct jbus *jbus)
{
- int status = dbus_bus_request_name(jbus->connection, jbus->name, DBUS_NAME_FLAG_DO_NOT_QUEUE, NULL);
+ int status = dbus_bus_request_name(jbus->connection, jbus->name,
+ DBUS_NAME_FLAG_DO_NOT_QUEUE, NULL);
switch (status) {
case DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER:
case DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER:
}
}
+/*
+ * Fills the at least 'njbuses' structures of array 'fds' with data needed
+ * to poll the 'njbuses' buses pointed by 'jbuses'.
+ *
+ * Returns the count of 'fds' structures filled.
+ */
int jbus_fill_pollfds(struct jbus **jbuses, int njbuses, struct pollfd *fds)
{
int i, r;
- for (r = i = 0 ; i < njbuses ; i++) {
+ for (r = i = 0; i < njbuses; i++) {
if (jbuses[i]->watchnr) {
fds[r].fd = jbuses[i]->watchfd;
fds[r].events = jbuses[i]->watchflags;
return r;
}
-int jbus_dispatch_pollfds(struct jbus **jbuses, int njbuses, struct pollfd *fds, int maxcount)
+/*
+ * Dispatchs a maximum of 'maxcount' events received by poll in 'fds' for the
+ * 'njbuses' jbuses of the array 'jbuses'.
+ *
+ * Returns the count of event dispatched.
+ */
+int jbus_dispatch_pollfds(
+ struct jbus **jbuses,
+ int njbuses,
+ struct pollfd *fds,
+ int maxcount)
{
int i, r, n;
DBusDispatchStatus sts;
- for (r = n = i = 0 ; i < njbuses && n < maxcount ; i++) {
+ for (r = n = i = 0; i < njbuses && n < maxcount; i++) {
if (jbuses[i]->watchnr && fds[r].fd == jbuses[i]->watchfd) {
if (fds[r].revents) {
- dbus_connection_read_write(jbuses[i]->connection, 0);
- sts = dbus_connection_get_dispatch_status(jbuses[i]->connection);
- while(sts == DBUS_DISPATCH_DATA_REMAINS && n < maxcount) {
- sts = dbus_connection_dispatch(jbuses[i]->connection);
+ dbus_connection_read_write(
+ jbuses[i]->connection, 0);
+ sts = dbus_connection_get_dispatch_status(
+ jbuses[i]->connection);
+ while (sts == DBUS_DISPATCH_DATA_REMAINS
+ && n < maxcount) {
+ sts = dbus_connection_dispatch(
+ jbuses[i]->connection);
n++;
}
}
return n;
}
+/*
+ * Dispatches 'maxcount' of buffered data from the 'njbuses' jbuses of the
+ * array 'jbuses'.
+ *
+ * Returns the count of event dispatched.
+ */
int jbus_dispatch_multiple(struct jbus **jbuses, int njbuses, int maxcount)
{
int i, r;
DBusDispatchStatus sts;
- for (i = r = 0 ; i < njbuses && r < maxcount ; i++) {
+ for (i = r = 0; i < njbuses && r < maxcount; i++) {
dbus_connection_read_write(jbuses[i]->connection, 0);
- sts = dbus_connection_get_dispatch_status(jbuses[i]->connection);
- while(sts == DBUS_DISPATCH_DATA_REMAINS && r < maxcount) {
+ sts = dbus_connection_get_dispatch_status(
+ jbuses[i]->connection);
+ while (sts == DBUS_DISPATCH_DATA_REMAINS && r < maxcount) {
sts = dbus_connection_dispatch(jbuses[i]->connection);
r++;
}
return r;
}
-int jbus_read_write_dispatch_multiple(struct jbus **jbuses, int njbuses, int toms, int maxcount)
+/*
+ * Polls during at most 'toms' milliseconds and dispatches 'maxcount'
+ * of events from the 'njbuses' jbuses of the array 'jbuses'.
+ *
+ * Returns the count of event dispatched or -1 in case of error.
+ */
+int jbus_read_write_dispatch_multiple(
+ struct jbus **jbuses,
+ int njbuses,
+ int toms,
+ int maxcount)
{
int n, r, s;
struct pollfd *fds;
errno = EINVAL;
return -1;
}
- fds = alloca((unsigned)njbuses * sizeof * fds);
+ fds = alloca((unsigned)njbuses * sizeof *fds);
assert(fds != NULL);
r = jbus_dispatch_multiple(jbuses, njbuses, maxcount);
if (r)
return r;
n = jbus_fill_pollfds(jbuses, njbuses, fds);
- for(;;) {
- s = poll(fds, (nfds_t)n, toms);
+ for (;;) {
+ s = poll(fds, (nfds_t) n, toms);
if (s >= 0)
break;
if (errno != EINTR)
return n >= 0 ? r + n : r ? r : n;
}
+/*
+ * Polls during at most 'toms' milliseconds and dispatches
+ * the events from 'jbus'.
+ *
+ * Returns the count of event dispatched or -1 in case of error.
+ */
int jbus_read_write_dispatch(struct jbus *jbus, int toms)
{
int r = jbus_read_write_dispatch_multiple(&jbus, 1, toms, 1000);
return r < 0 ? r : 0;
}
-int jbus_call_ss(struct jbus *jbus, const char *method, const char *query, void (*onresp)(int, const char*, void*), void *data)
+/*
+ * Asynchronous call to 'method' of 'jbus' passing the string 'query'.
+ * On response, the function 'onresp' is called with the returned string
+ * value and the closure 'data'.
+ * The function 'onresp' is invoked with 3 parameters:
+ * 1. int: 0 if no error or -1 if error.
+ * 2. const char *: the returned string (might be NULL if error)
+ * 3. void *: the closure 'data'
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
+int jbus_call_ss(
+ struct jbus *jbus,
+ const char *method,
+ const char *query,
+ void (*onresp) (int, const char *, void *),
+ void *data)
{
return call(jbus, method, query, onresp, NULL, data);
}
-int jbus_call_sj(struct jbus *jbus, const char *method, const char *query, void (*onresp)(int, struct json_object*, void*), void *data)
+/*
+ * Asynchronous call to 'method' of 'jbus' passing the string 'query'.
+ * On response, the function 'onresp' is called with the returned json
+ * value and the closure 'data'.
+ * The function 'onresp' is invoked with 3 parameters:
+ * 1. int: 0 if no error or -1 if error.
+ * 2. const char *: the returned json (might be NULL if error)
+ * 3. void *: the closure 'data'
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
+int jbus_call_sj(
+ struct jbus *jbus,
+ const char *method,
+ const char *query,
+ void (*onresp) (int, struct json_object *, void *),
+ void *data)
{
return call(jbus, method, query, NULL, onresp, data);
}
-int jbus_call_js(struct jbus *jbus, const char *method, struct json_object *query, void (*onresp)(int, const char*, void*), void *data)
+/*
+ * Asynchronous call to 'method' of 'jbus' passing the json 'query'.
+ * On response, the function 'onresp' is called with the returned string
+ * value and the closure 'data'.
+ * The function 'onresp' is invoked with 3 parameters:
+ * 1. int: 0 if no error or -1 if error.
+ * 2. const char *: the returned string (might be NULL if error)
+ * 3. void *: the closure 'data'
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
+int jbus_call_js(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query,
+ void (*onresp) (int, const char *, void *),
+ void *data)
{
const char *str = json_object_to_json_string(query);
if (str == NULL) {
return call(jbus, method, str, onresp, NULL, data);
}
-int jbus_call_jj(struct jbus *jbus, const char *method, struct json_object *query, void (*onresp)(int, struct json_object*, void*), void *data)
+/*
+ * Asynchronous call to 'method' of 'jbus' passing the json 'query'.
+ * On response, the function 'onresp' is called with the returned json
+ * value and the closure 'data'.
+ * The function 'onresp' is invoked with 3 parameters:
+ * 1. int: 0 if no error or -1 if error.
+ * 2. const char *: the returned json (might be NULL if error)
+ * 3. void *: the closure 'data'
+ *
+ * Returns 0 in case of success or -1 in case of error.
+ */
+int jbus_call_jj(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query,
+ void (*onresp) (int, struct json_object *, void *),
+ void *data)
{
const char *str = json_object_to_json_string(query);
if (str == NULL) {
return call(jbus, method, str, NULL, onresp, data);
}
-char *jbus_call_ss_sync(struct jbus *jbus, const char *method, const char *query)
+/*
+ * Synchronous call to 'method' of 'jbus' passing the string 'query'.
+ * The returned string response is returned.
+ *
+ * Returns the string response or NULL in case of error.
+ */
+char *jbus_call_ss_sync(
+ struct jbus *jbus,
+ const char *method,
+ const char *query)
{
struct respsync synchro;
synchro.value = NULL;
- synchro.replied = jbus_call_ss(jbus, method, query, sync_of_replies, &synchro);
- while (!synchro.replied && !jbus_read_write_dispatch(jbus, -1));
+ synchro.replied =
+ jbus_call_ss(jbus, method, query, sync_of_replies, &synchro);
+ while (!synchro.replied && !jbus_read_write_dispatch(jbus, -1)) ;
return synchro.value;
}
-struct json_object *jbus_call_sj_sync(struct jbus *jbus, const char *method, const char *query)
+/*
+ * Synchronous call to 'method' of 'jbus' passing the string 'query'.
+ * The returned json response is returned.
+ *
+ * Returns the json response or NULL in case of error.
+ */
+struct json_object *jbus_call_sj_sync(
+ struct jbus *jbus,
+ const char *method,
+ const char *query)
{
struct json_object *obj;
char *str = jbus_call_ss_sync(jbus, method, query);
if (str == NULL)
obj = NULL;
else {
- parse(jbus, str, &obj);
+ jparse(jbus, str, &obj);
free(str);
}
return obj;
}
-char *jbus_call_js_sync(struct jbus *jbus, const char *method, struct json_object *query)
+/*
+ * Synchronous call to 'method' of 'jbus' passing the json 'query'.
+ * The returned string response is returned.
+ *
+ * Returns the string response or NULL in case of error.
+ */
+char *jbus_call_js_sync(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query)
{
const char *str = json_object_to_json_string(query);
if (str == NULL) {
return jbus_call_ss_sync(jbus, method, str);
}
-struct json_object *jbus_call_jj_sync(struct jbus *jbus, const char *method, struct json_object *query)
+/*
+ * Synchronous call to 'method' of 'jbus' passing the json 'query'.
+ * The returned json response is returned.
+ *
+ * Returns the json response or NULL in case of error.
+ */
+struct json_object *jbus_call_jj_sync(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query)
{
const char *str = json_object_to_json_string(query);
if (str == NULL) {
return jbus_call_sj_sync(jbus, method, str);
}
-int jbus_on_signal_s(struct jbus *jbus, const char *name, void (*onsig)(const char *, void *), void *data)
+/*
+ * Records for 'jbus' the string signal handler 'onsig' with closure 'data'
+ * for the signal of 'name'.
+ * The callback handler is called with 2 arguments:
+ * 1. char *: the string parameter associated to the signal
+ * 2. void *: the closure data.
+ *
+ * Returns 0 in case of success or -1 otherwise.
+ */
+int jbus_on_signal_s(
+ struct jbus *jbus,
+ const char *name,
+ void (*onsig) (const char *, void *),
+ void *data)
{
return add_signal(jbus, name, onsig, NULL, data);
}
-int jbus_on_signal_j(struct jbus *jbus, const char *name, void (*onsig)(struct json_object *, void *), void *data)
+/*
+ * Records for 'jbus' the json signal handler 'onsig' with closure 'data'
+ * for the signal of 'name'.
+ * The callback handler is called with 2 arguments:
+ * 1. struct json_object *: the json parameter associated to the signal
+ * 2. void *: the closure data.
+ *
+ * Returns 0 in case of success or -1 otherwise.
+ */
+int jbus_on_signal_j(
+ struct jbus *jbus,
+ const char *name,
+ void (*onsig) (struct json_object *, void *),
+ void *data)
{
return add_signal(jbus, name, NULL, onsig, data);
}
-/************************** FEW LITTLE TESTS *****************************************/
+/****************** FEW LITTLE TESTS *****************************************/
#ifdef SERVER
#include <stdio.h>
struct jbus *jbus;
void ping(struct jreq *jreq, struct json_object *request, void *unused)
{
-printf("ping(%s) -> %s\n",json_object_to_json_string(request),json_object_to_json_string(request));
+ printf("ping(%s) -> %s\n", json_object_to_json_string(request),
+ json_object_to_json_string(request));
jbus_reply_j(jreq, request);
- json_object_put(request);
+ json_object_put(request);
}
+
void incr(struct jreq *jreq, struct json_object *request, void *unused)
{
static int counter = 0;
struct json_object *res = json_object_new_int(++counter);
-printf("incr(%s) -> %s\n",json_object_to_json_string(request),json_object_to_json_string(res));
+ printf("incr(%s) -> %s\n", json_object_to_json_string(request),
+ json_object_to_json_string(res));
jbus_reply_j(jreq, res);
-jbus_send_signal_j(jbus, "incremented", res);
+ jbus_send_signal_j(jbus, "incremented", res);
json_object_put(res);
json_object_put(request);
}
+
int main()
{
int s1, s2, s3;
s2 = jbus_add_service_j(jbus, "incr", incr, NULL);
s3 = jbus_start_serving(jbus);
printf("started %d %d %d\n", s1, s2, s3);
- while (!jbus_read_write_dispatch (jbus, -1));
+ while (!jbus_read_write_dispatch(jbus, -1)) ;
}
#endif
#ifdef CLIENT
struct jbus *jbus;
void onresp(int status, struct json_object *response, void *data)
{
- printf("resp: %d, %s, %s\n",status,(char*)data,json_object_to_json_string(response));
+ printf("resp: %d, %s, %s\n", status, (char *)data,
+ json_object_to_json_string(response));
json_object_put(response);
}
+
void signaled(const char *data)
{
printf("signaled with {%s}\n", data);
}
+
int main()
{
int i = 10;
jbus = create_jbus(1, "/bzh/iot/jdbus");
jbus_on_signal_s(jbus, "incremented", signaled);
- while(i--) {
- jbus_call_sj(jbus, "ping", "{\"toto\":[1,2,3,4,true,\"toto\"]}", onresp, "ping");
- jbus_call_sj(jbus, "incr", "{\"doit\":\"for-me\"}", onresp, "incr");
- jbus_read_write_dispatch (jbus, 1);
+ while (i--) {
+ jbus_call_sj(jbus, "ping", "{\"toto\":[1,2,3,4,true,\"toto\"]}",
+ onresp, "ping");
+ jbus_call_sj(jbus, "incr", "{\"doit\":\"for-me\"}", onresp,
+ "incr");
+ jbus_read_write_dispatch(jbus, 1);
}
- printf("[[[%s]]]\n", jbus_call_ss_sync(jbus, "ping", "\"formidable!\""));
- while (!jbus_read_write_dispatch (jbus, -1));
+ printf("[[[%s]]]\n",
+ jbus_call_ss_sync(jbus, "ping", "\"formidable!\""));
+ while (!jbus_read_write_dispatch(jbus, -1)) ;
}
#endif
-
-
-
-
-
-
-
-
limitations under the License.
*/
-
struct jreq;
struct jbus;
+struct pollfd;
extern struct jbus *create_jbus(const char *path, int session);
extern struct jbus *create_jbus_session(const char *path);
extern void jbus_addref(struct jbus *jbus);
extern void jbus_unref(struct jbus *jbus);
-struct pollfd;
-extern int jbus_fill_pollfds(struct jbus **jbuses, int njbuses, struct pollfd *fds);
-extern int jbus_dispatch_pollfds(struct jbus **jbuses, int njbuses, struct pollfd *fds, int maxcount);
-extern int jbus_read_write_dispatch_multiple(struct jbus **jbuses, int njbuses, int toms, int maxcount);
-extern int jbus_dispatch_multiple(struct jbus **jbuses, int njbuses, int maxcount);
+extern int jbus_fill_pollfds(
+ struct jbus **jbuses,
+ int njbuses,
+ struct pollfd *fds);
-extern int jbus_read_write_dispatch(struct jbus *jbus, int toms);
+extern int jbus_dispatch_pollfds(
+ struct jbus **jbuses,
+ int njbuses,
+ struct pollfd *fds,
+ int maxcount);
-/* verbs for the clients */
-extern int jbus_call_ss(struct jbus *jbus, const char *method, const char *query, void (*onresp)(int, const char *, void *), void *data);
-extern int jbus_call_js(struct jbus *jbus, const char *method, struct json_object *query, void (*onresp)(int, const char *, void *), void *data);
-extern int jbus_call_sj(struct jbus *jbus, const char *method, const char *query, void (*onresp)(int, struct json_object *, void *), void *data);
-extern int jbus_call_jj(struct jbus *jbus, const char *method, struct json_object *query, void (*onresp)(int, struct json_object *, void *), void *data);
+extern int jbus_read_write_dispatch_multiple(
+ struct jbus **jbuses,
+ int njbuses,
+ int toms,
+ int maxcount);
-extern char *jbus_call_ss_sync(struct jbus *jbus, const char *method, const char *query);
-extern char *jbus_call_js_sync(struct jbus *jbus, const char *method, struct json_object *query);
-extern struct json_object *jbus_call_sj_sync(struct jbus *jbus, const char *method, const char *query);
-extern struct json_object *jbus_call_jj_sync(struct jbus *jbus, const char *method, struct json_object *query);
+extern int jbus_dispatch_multiple(
+ struct jbus **jbuses,
+ int njbuses,
+ int maxcount);
-extern int jbus_on_signal_s(struct jbus *jbus, const char *name, void (*onsignal)(const char *, void *), void *data);
-extern int jbus_on_signal_j(struct jbus *jbus, const char *name, void (*onsignal)(struct json_object *, void *), void *data);
+extern int jbus_read_write_dispatch(
+ struct jbus *jbus,
+ int toms);
-/* verbs for servers */
-extern int jbus_reply_s(struct jreq *jreq, const char *reply);
-extern int jbus_reply_j(struct jreq *jreq, struct json_object *reply);
-extern int jbus_reply_error_s(struct jreq *jreq, const char *reply);
-extern int jbus_reply_error_j(struct jreq *jreq, struct json_object *reply);
-extern int jbus_add_service_s(struct jbus *jbus, const char *method, void (*oncall)(struct jreq *, const char *, void *), void *data);
-extern int jbus_add_service_j(struct jbus *jbus, const char *method, void (*oncall)(struct jreq *, struct json_object *, void *), void *data);
-extern int jbus_start_serving(struct jbus *jbus);
-extern int jbus_send_signal_s(struct jbus *jbus, const char *name, const char *content);
-extern int jbus_send_signal_j(struct jbus *jbus, const char *name, struct json_object *content);
+/* verbs for the clients */
+extern int jbus_call_ss(
+ struct jbus *jbus,
+ const char *method,
+ const char *query,
+ void (*onresp) (int, const char *, void *),
+ void *data);
+
+extern int jbus_call_js(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query,
+ void (*onresp) (int, const char *, void *),
+ void *data);
+
+extern int jbus_call_sj(
+ struct jbus *jbus,
+ const char *method,
+ const char *query,
+ void (*onresp) (int, struct json_object *, void *),
+ void *data);
+
+extern int jbus_call_jj(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query,
+ void (*onresp) (int, struct json_object *, void *),
+ void *data);
+
+extern char *jbus_call_ss_sync(
+ struct jbus *jbus,
+ const char *method,
+ const char *query);
+
+extern char *jbus_call_js_sync(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query);
+
+extern struct json_object *jbus_call_sj_sync(
+ struct jbus *jbus,
+ const char *method,
+ const char *query);
+
+extern struct json_object *jbus_call_jj_sync(
+ struct jbus *jbus,
+ const char *method,
+ struct json_object *query);
+
+extern int jbus_on_signal_s(
+ struct jbus *jbus,
+ const char *name,
+ void (*onsignal) (const char *, void *),
+ void *data);
+
+extern int jbus_on_signal_j(
+ struct jbus *jbus,
+ const char *name,
+ void (*onsignal) (struct json_object *, void *),
+ void *data);
+/* verbs for servers */
+extern int jbus_reply_s(
+ struct jreq *jreq,
+ const char *reply);
+
+extern int jbus_reply_j(
+ struct jreq *jreq,
+ struct json_object *reply);
+
+extern int jbus_reply_error_s(
+ struct jreq *jreq,
+ const char *reply);
+
+extern int jbus_reply_error_j(
+ struct jreq *jreq,
+ struct json_object *reply);
+
+extern int jbus_add_service_s(
+ struct jbus *jbus,
+ const char *method,
+ void (*oncall) (struct jreq *, const char *, void *),
+ void *data);
+
+extern int jbus_add_service_j(
+ struct jbus *jbus,
+ const char *method,
+ void (*oncall) (struct jreq *, struct json_object *, void *),
+ void *data);
+
+extern int jbus_start_serving(
+ struct jbus *jbus);
+
+extern int jbus_send_signal_s(
+ struct jbus *jbus,
+ const char *name,
+ const char *content);
+
+extern int jbus_send_signal_j(
+ struct jbus *jbus,
+ const char *name,
+ struct json_object *content);
ctx->count = 0;
ctx->abcd = "SomeThingUseful";
- request.context = ctx;
+ *request.context = ctx;
afb_req_success_f(request, NULL, "SUCCESS: create client context for plugin [%s]", handle->anythingYouWant);
}
static void myAction (struct afb_req request)
{
MyPluginHandleT *handle = (MyPluginHandleT*) &global_handle;
- MyClientContextT *ctx = (MyClientContextT*) request.context;
+ MyClientContextT *ctx = (MyClientContextT*) *request.context;
// store something in our plugin private client context
ctx->count++;
static void myClose (struct afb_req request)
{
MyPluginHandleT *handle = (MyPluginHandleT*) &global_handle;
- MyClientContextT *ctx = (MyClientContextT*) request.context;
+ MyClientContextT *ctx = (MyClientContextT*) *request.context;
// store something in our plugin private client context
ctx->count++;
ADD_LIBRARY(src OBJECT
main.c
session.c
- http-svc.c
+ afb-hsrv.c
afb-apis.c
afb-method.c
afb-hreq.c
afb-websock.c
websock.c
- helper-api.c)
+ verbose.c
+ utils-upoll.c
+)
INCLUDE_DIRECTORIES(${include_dirs})
#include "afb-plugin.h"
#include "afb-req-itf.h"
+#include "afb-poll-itf.h"
+
#include "session.h"
#include "afb-apis.h"
+#include "verbose.h"
+#include "utils-upoll.h"
struct api_desc {
struct AFB_plugin *plugin; /* descriptor */
static const char plugin_register_function[] = "pluginRegister";
+static const struct afb_poll_itf upoll_itf = {
+ .on_readable = (void*)upoll_on_readable,
+ .on_writable = (void*)upoll_on_writable,
+ .on_hangup = (void*)upoll_on_hangup,
+ .close = (void*)upoll_close
+};
+
+
int afb_apis_count()
{
return apis_count;
free(context);
}
+static struct afb_poll itf_poll_open(int fd, void *closure)
+{
+ struct afb_poll result;
+ result.data = upoll_open(fd, closure);
+ result.itf = result.data ? &upoll_itf : NULL;
+ return result;
+}
+
+
int afb_apis_add_plugin(const char *path)
{
struct api_desc *apis;
fprintf(stderr, "[%s] not an AFB plugin, continuing...\n", path);
goto error2;
}
- if (verbose)
+ if (verbosity)
fprintf(stderr, "[%s] is a valid AFB plugin\n", path);
/* allocates enough memory */
fprintf(stderr, "ERROR: plugin [%s] memory missing. continuing...\n", path);
goto error2;
}
- interface->verbose = 0;
+ interface->verbosity = 0;
interface->mode = AFB_MODE_LOCAL;
+ interface->poll_open = itf_poll_open;
/* init the plugin */
plugin = pluginRegisterFct(interface);
}
/* record the plugin */
- if (verbose)
+ if (verbosity)
fprintf(stderr, "Loading plugin[%lu] prefix=[%s] info=%s\n", (unsigned long)apis_count, plugin->prefix, plugin->info);
apis = &apis_array[apis_count];
apis->plugin = plugin;
fprintf(stderr, "ERROR in scanning plugin directory %s, %m\n", path);
return -1;
}
- if (verbose)
+ if (verbosity)
fprintf(stderr, "Scanning dir=[%s] for plugins\n", path);
/* scan each entry */
v = a->plugin->apis;
for (j = 0 ; v->name ; j++, v++) {
if (!strncasecmp(v->name, verb, lenverb) && !v->name[lenverb]) {
- req.context = context->contexts[i];
+ req.context = &context->contexts[i];
handle(req, v);
- context->contexts[i] = req.context;
return 1;
}
}
* limitations under the License.
*/
+#define USE_MAGIC_MIME_TYPE
#define _GNU_SOURCE
#include <stdlib.h>
#include <microhttpd.h>
+#if defined(USE_MAGIC_MIME_TYPE)
+#include <magic.h>
+#endif
+
#include "local-def.h"
#include "afb-method.h"
#include "afb-req-itf.h"
#include "afb-hreq.h"
#include "session.h"
+#include "verbose.h"
#define SIZE_RESPONSE_BUFFER 8000
return 1;
}
+#if defined(USE_MAGIC_MIME_TYPE)
+
+#if !defined(MAGIC_DB)
+#define MAGIC_DB "/usr/share/misc/magic.mgc"
+#endif
+
+static magic_t lazy_libmagic()
+{
+ static int done = 0;
+ static magic_t result = NULL;
+
+ if (!done) {
+ done = 1;
+ /* MAGIC_MIME tells magic to return a mime of the file,
+ but you can specify different things */
+ if (verbosity)
+ printf("Loading mimetype default magic database\n");
+
+ result = magic_open(MAGIC_MIME_TYPE);
+ if (result == NULL) {
+ fprintf(stderr,"ERROR: unable to initialize magic library\n");
+ }
+ /* Warning: should not use NULL for DB
+ [libmagic bug wont pass efence check] */
+ else if (magic_load(result, MAGIC_DB) != 0) {
+ fprintf(stderr,"cannot load magic database - %s\n",
+ magic_error(result));
+ magic_close(result);
+ result = NULL;
+ }
+ }
+
+ return result;
+}
+
+static const char *magic_mimetype_fd(int fd)
+{
+ magic_t lib = lazy_libmagic();
+ return lib ? magic_descriptor(lib, fd) : NULL;
+}
+
+#endif
+
+
+
void afb_hreq_free(struct afb_hreq *hreq)
{
struct hreq_data *data;
if (inm && 0 == strcmp(inm, etag)) {
/* etag ok, return NOT MODIFIED */
close(fd);
- if (verbose)
+ if (verbosity)
fprintf(stderr, "Not Modified: [%s]\n", filename);
response = MHD_create_response_from_buffer(0, empty_string, MHD_RESPMEM_PERSISTENT);
status = MHD_HTTP_NOT_MODIFIED;
#if defined(USE_MAGIC_MIME_TYPE)
/* set the type */
- if (hreq->session->magic) {
- const char *mimetype = magic_descriptor(hreq->session->magic, fd);
+ {
+ const char *mimetype = magic_mimetype_fd(fd);
if (mimetype != NULL)
MHD_add_response_header(response, MHD_HTTP_HEADER_CONTENT_TYPE, mimetype);
}
MHD_add_response_header(response, MHD_HTTP_HEADER_LOCATION, url);
MHD_queue_response(hreq->connection, MHD_HTTP_MOVED_PERMANENTLY, response);
MHD_destroy_response(response);
- if (verbose)
+ if (verbosity)
fprintf(stderr, "redirect from [%s] to [%s]\n", hreq->url, url);
return 1;
}
uuid = afb_hreq_get_argument(hreq, uuid_arg);
if (uuid == NULL)
uuid = afb_hreq_get_cookie(hreq, uuid_cookie);
- hreq->context = ctxClientGet(uuid);
+ hreq->context = ctxClientGetForUuid(uuid);
}
return hreq->context;
}
struct MHD_PostProcessor *postform;
struct AFB_clientCtx *context;
struct hreq_data *data;
+ int upgrade;
};
extern void afb_hreq_free(struct afb_hreq *request);
#include "local-def.h"
#include "afb-method.h"
#include "afb-hreq.h"
+#include "afb-hsrv.h"
#include "afb-websock.h"
#include "afb-apis.h"
#include "afb-req-itf.h"
+#include "verbose.h"
+#include "utils-upoll.h"
#define JSON_CONTENT "application/json"
#define FORM_CONTENT MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA
int dirfd;
};
-int afb_hreq_one_page_api_redirect(
- struct afb_hreq *hreq,
- void *data)
-{
- size_t plen;
- char *url;
-
- if (hreq->lentail >= 2 && hreq->tail[1] == '#')
- return 0;
- /*
- * Here we have for example:
- * url = "/pre/dir/page" lenurl = 13
- * tail = "/dir/page" lentail = 9
- *
- * We will produce "/pre/#!dir/page"
- *
- * Let compute plen that include the / at end (for "/pre/")
- */
- plen = hreq->lenurl - hreq->lentail + 1;
- url = alloca(hreq->lenurl + 3);
- memcpy(url, hreq->url, plen);
- url[plen++] = '#';
- url[plen++] = '!';
- memcpy(&url[plen], &hreq->tail[1], hreq->lentail);
- return afb_hreq_redirect_to(hreq, url);
-}
+static struct upoll *upoll = NULL;
static struct afb_hsrv_handler *new_handler(
struct afb_hsrv_handler *head,
return 1;
}
+int afb_hreq_one_page_api_redirect(
+ struct afb_hreq *hreq,
+ void *data)
+{
+ size_t plen;
+ char *url;
+
+ if (hreq->lentail >= 2 && hreq->tail[1] == '#')
+ return 0;
+ /*
+ * Here we have for example:
+ * url = "/pre/dir/page" lenurl = 13
+ * tail = "/dir/page" lentail = 9
+ *
+ * We will produce "/pre/#!dir/page"
+ *
+ * Let compute plen that include the / at end (for "/pre/")
+ */
+ plen = hreq->lenurl - hreq->lentail + 1;
+ url = alloca(hreq->lenurl + 3);
+ memcpy(url, hreq->url, plen);
+ url[plen++] = '#';
+ url[plen++] = '!';
+ memcpy(&url[plen], &hreq->tail[1], hreq->lentail);
+ return afb_hreq_redirect_to(hreq, url);
+}
+
static int afb_hreq_websocket_switch(struct afb_hreq *hreq, void *data)
{
int later;
return 0;
if (!later) {
- struct afb_websock *ws = afb_websock_create(hreq->connection);
+ struct afb_websock *ws = afb_websock_create(hreq);
if (ws == NULL) {
/* TODO */
} else {
struct afb_hreq *hreq;
hreq = *recordreq;
-
+ if (hreq->upgrade)
+ MHD_suspend_connection (connection);
afb_hreq_free(hreq);
}
return MHD_YES;
}
-#if defined(USE_MAGIC_MIME_TYPE)
-
-#if !defined(MAGIC_DB)
-#define MAGIC_DB "/usr/share/misc/magic.mgc"
-#endif
-
-static int init_lib_magic (AFB_session *session)
-{
- /* MAGIC_MIME tells magic to return a mime of the file, but you can specify different things */
- if (verbose)
- printf("Loading mimetype default magic database\n");
-
- session->magic = magic_open(MAGIC_MIME_TYPE);
- if (session->magic == NULL) {
- fprintf(stderr,"ERROR: unable to initialize magic library\n");
- return 0;
- }
-
- /* Warning: should not use NULL for DB [libmagic bug wont pass efence check] */
- if (magic_load(session->magic, MAGIC_DB) != 0) {
- fprintf(stderr,"cannot load magic database - %s\n", magic_error(session->magic));
- magic_close(session->magic);
- session->magic = NULL;
- return 0;
- }
-
- return 1;
-}
-#endif
-
static int my_default_init(AFB_session * session)
{
int idx;
return 1;
}
-AFB_error httpdStart(AFB_session * session)
+/* infinite loop */
+static void hsrv_handle_event(struct MHD_Daemon *httpd)
+{
+ MHD_run(httpd);
+}
+
+int afb_hsrv_start(AFB_session * session)
{
+ struct MHD_Daemon *httpd;
+ const union MHD_DaemonInfo *info;
+
if (!my_default_init(session)) {
printf("Error: initialisation of httpd failed");
- return AFB_FATAL;
+ return 0;
}
-#if defined(USE_MAGIC_MIME_TYPE)
- /*TBD open libmagic cache [fail to pass EFENCE check (allocating 0 bytes)] */
- init_lib_magic (session);
-#endif
-
- if (verbose) {
+ if (verbosity) {
printf("AFB:notice Waiting port=%d rootdir=%s\n", session->config->httpdPort, session->config->rootdir);
printf("AFB:notice Browser URL= http:/*localhost:%d\n", session->config->httpdPort);
}
- session->httpd = MHD_start_daemon(
+ httpd = MHD_start_daemon(
MHD_USE_EPOLL_LINUX_ONLY | MHD_USE_TCP_FASTOPEN | MHD_USE_DEBUG | MHD_USE_SUSPEND_RESUME,
(uint16_t) session->config->httpdPort, /* port */
new_client_handler, NULL, /* Tcp Accept call back + extra attribute */
MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int)15, /* 15 seconds */
MHD_OPTION_END); /* options-end */
- if (session->httpd == NULL) {
+ if (httpd == NULL) {
printf("Error: httpStart invalid httpd port: %d", session->config->httpdPort);
- return AFB_FATAL;
+ return 0;
}
- return AFB_SUCCESS;
-}
-/* infinite loop */
-AFB_error httpdLoop(AFB_session * session)
-{
- int count = 0;
- const union MHD_DaemonInfo *info;
- struct pollfd pfd;
-
- info = MHD_get_daemon_info(session->httpd, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
+ info = MHD_get_daemon_info(httpd, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
if (info == NULL) {
- printf("Error: httpLoop no pollfd");
- goto error;
+ MHD_stop_daemon(httpd);
+ fprintf(stderr, "Error: httpStart no pollfd");
+ return 0;
}
- pfd.fd = info->listen_fd;
- pfd.events = POLLIN;
-
- if (verbose)
- fprintf(stderr, "AFB:notice entering httpd waiting loop\n");
- while (TRUE) {
- if (verbose)
- fprintf(stderr, "AFB:notice httpd alive [%d]\n", count++);
- poll(&pfd, 1, 15000); /* 15 seconds (as above timeout when starting) */
- MHD_run(session->httpd);
+
+ upoll = upoll_open(info->listen_fd, httpd);
+ if (upoll == NULL) {
+ MHD_stop_daemon(httpd);
+ fprintf(stderr, "Error: connection to upoll of httpd failed");
+ return 0;
}
+ upoll_on_readable(upoll, (void*)hsrv_handle_event);
- error:
- /* should never return from here */
- return AFB_FATAL;
+ session->httpd = httpd;
+ return 1;
}
-int httpdStatus(AFB_session * session)
+void afb_hsrv_stop(AFB_session * session)
{
- return MHD_run(session->httpd);
+ if (upoll)
+ upoll_close(upoll);
+ upoll = NULL;
+ if (session->httpd != NULL)
+ MHD_stop_daemon(session->httpd);
+ session->httpd = NULL;
}
-void httpdStop(AFB_session * session)
-{
- MHD_stop_daemon(session->httpd);
-}
--- /dev/null
+/*
+ Copyright 2016 IoT.bzh
+
+ author: José Bollo <jose.bollo@iot.bzh>
+
+ Licensed 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.
+*/
+
+int afb_hsrv_start(AFB_session * session);
+void afb_hsrv_stop(AFB_session * session);
#include <sys/uio.h>
#include <string.h>
+#include <json.h>
+
#include <openssl/sha.h>
+/*
#include <openssl/bio.h>
#include <openssl/evp.h>
+*/
#include "websock.h"
#include "local-def.h"
+#include "afb-req-itf.h"
#include "afb-method.h"
#include "afb-hreq.h"
+#include "afb-websock.h"
+#include "afb-apis.h"
+#include "session.h"
+#include "utils-upoll.h"
+
+/**************** WebSocket connection upgrade ****************************/
static const char websocket_s[] = "websocket";
static const char sec_websocket_key_s[] = "Sec-WebSocket-Key";
static const char sec_websocket_protocol_s[] = "Sec-WebSocket-Protocol";
static const char websocket_guid[] = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
-
-struct afb_websock
-{
- int fd;
- struct MHD_Connection *connection;
- struct websock *ws;
-};
-
-static ssize_t afb_websock_writev(struct afb_websock *ws, const struct iovec *iov, int iovcnt)
-{
- ssize_t rc;
- do {
- rc = writev(ws->fd, iov, iovcnt);
- } while(rc == -1 && errno == EINTR);
- return rc;
-}
-
-static ssize_t afb_websock_readv(struct afb_websock *ws, const struct iovec *iov, int iovcnt)
-{
- ssize_t rc;
- do {
- rc = readv(ws->fd, iov, iovcnt);
- } while(rc == -1 && errno == EINTR);
- return rc;
-}
-
-static void afb_websock_disconnect(struct afb_websock *ws)
-{
-}
-
-static void afb_websock_on_close(struct afb_websock *ws, uint16_t code, size_t size)
-{
-}
-
-static void afb_websock_on_content(struct afb_websock *ws, int last, size_t size)
-{
-}
-
-static struct websock_itf afb_websock_itf = {
- .writev = (void*)afb_websock_writev,
- .readv = (void*)afb_websock_readv,
- .disconnect = (void*)afb_websock_disconnect,
-
- .on_ping = NULL,
- .on_pong = NULL,
- .on_close = (void*)afb_websock_on_close,
- .on_text = (void*)afb_websock_on_content,
- .on_binary = (void*)afb_websock_on_content,
- .on_continue = (void*)afb_websock_on_content
-};
-
static void enc64(unsigned char *in, char *out)
{
static const char tob64[] =
return 1;
}
-struct afb_websock *afb_websock_create(struct MHD_Connection *connection)
+/**************** WebSocket handling ****************************/
+
+static ssize_t aws_writev(struct afb_websock *ws, const struct iovec *iov, int iovcnt);
+static ssize_t aws_readv(struct afb_websock *ws, const struct iovec *iov, int iovcnt);
+static void aws_disconnect(struct afb_websock *ws);
+static void aws_on_close(struct afb_websock *ws, uint16_t code, size_t size);
+static void aws_on_content(struct afb_websock *ws, int last, size_t size);
+static void aws_on_readable(struct afb_websock *ws);
+
+static struct websock_itf aws_itf = {
+ .writev = (void*)aws_writev,
+ .readv = (void*)aws_readv,
+ .disconnect = (void*)aws_disconnect,
+
+ .on_ping = NULL,
+ .on_pong = NULL,
+ .on_close = (void*)aws_on_close,
+ .on_text = (void*)aws_on_content,
+ .on_binary = (void*)aws_on_content,
+ .on_continue = (void*)aws_on_content
+};
+
+struct afb_wsreq
+{
+ struct afb_websock *aws;
+ struct afb_wsreq *next;
+ struct json_object *id;
+ struct json_object *name;
+ struct json_object *token;
+ struct json_object *request;
+};
+
+struct afb_websock
+{
+ int fd;
+ struct MHD_Connection *connection;
+ struct websock *ws;
+ struct upoll *up;
+ struct AFB_clientCtx *context;
+ struct json_tokener *tokener;
+ struct afb_wsreq *requests;
+};
+
+static struct afb_arg wsreq_get(struct afb_wsreq *wsreq, const char *name);
+static void wsreq_iterate(struct afb_wsreq *wsreq, int (*iterator)(void *closure, struct afb_arg arg), void *closure);
+static void wsreq_fail(struct afb_wsreq *wsreq, const char *status, const char *info);
+static void wsreq_success(struct afb_wsreq *wsreq, struct json_object *obj, const char *info);
+static int wsreq_session_create(struct afb_wsreq *wsreq);
+static int wsreq_session_check(struct afb_wsreq *wsreq, int refresh);
+static void wsreq_session_close(struct afb_wsreq *wsreq);
+
+static const struct afb_req_itf wsreq_itf = {
+ .get = (void*)wsreq_get,
+ .iterate = (void*)wsreq_iterate,
+ .fail = (void*)wsreq_fail,
+ .success = (void*)wsreq_success,
+ .session_create = (void*)wsreq_session_create,
+ .session_check = (void*)wsreq_session_check,
+ .session_close = (void*)wsreq_session_close
+};
+
+struct afb_websock *afb_websock_create(struct afb_hreq *hreq)
{
struct afb_websock *result;
result = malloc(sizeof * result);
- if (result) {
- result->connection = connection;
- result->fd = MHD_get_connection_info(connection, MHD_CONNECTION_INFO_CONNECTION_FD)->connect_fd;
- result->ws = websock_create(&afb_websock_itf, result);
- if (result->ws == NULL) {
- free(result);
- result = NULL;
+ if (result == NULL)
+ goto error;
+
+ result->connection = hreq->connection;
+ result->fd = MHD_get_connection_info(hreq->connection,
+ MHD_CONNECTION_INFO_CONNECTION_FD)->connect_fd;
+ result->context = ctxClientGet(afb_hreq_context(hreq));
+ if (result->context == NULL)
+ goto error2;
+
+ result->tokener = json_tokener_new();
+ if (result->tokener == NULL)
+ goto error2;
+
+ result->ws = websock_create(&aws_itf, result);
+ if (result->ws == NULL)
+ goto error3;
+
+ result->up = upoll_open(result->fd, result);
+ if (result->up == NULL)
+ goto error4;
+
+ upoll_on_readable(result->up, (void*)aws_on_readable);
+ upoll_on_hangup(result->up, (void*)aws_disconnect);
+ return result;
+error4:
+ websock_destroy(result->ws);
+error3:
+ json_tokener_free(result->tokener);
+error2:
+ free(result);
+error:
+ return NULL;
+}
+
+static ssize_t aws_writev(struct afb_websock *ws, const struct iovec *iov, int iovcnt)
+{
+ ssize_t rc;
+ do {
+ rc = writev(ws->fd, iov, iovcnt);
+ } while(rc == -1 && errno == EINTR);
+ return rc;
+}
+
+static ssize_t aws_readv(struct afb_websock *ws, const struct iovec *iov, int iovcnt)
+{
+ ssize_t rc;
+ do {
+ rc = readv(ws->fd, iov, iovcnt);
+ } while(rc == -1 && errno == EINTR);
+ return rc;
+}
+
+static void aws_disconnect(struct afb_websock *ws)
+{
+ upoll_close(ws->up);
+ websock_destroy(ws->ws);
+ close(ws->fd);
+ MHD_resume_connection (ws->connection);
+ ctxClientPut(ws->context);
+ json_tokener_free(ws->tokener);
+ free(ws);
+}
+
+static void aws_on_close(struct afb_websock *ws, uint16_t code, size_t size)
+{
+ /* do nothing */
+}
+
+static void aws_on_readable(struct afb_websock *ws)
+{
+ websock_dispatch(ws->ws);
+}
+
+static int aws_handle_json(struct afb_websock *aws, struct json_object *obj)
+{
+ struct afb_req r;
+ int count, num, rc;
+ struct json_object *type, *id, *name, *req, *token;
+ struct afb_wsreq *wsreq;
+ const char *api, *verb;
+ size_t lenapi, lenverb;
+
+ /* protocol inspired by http://www.gir.fr/ocppjs/ocpp_srpc_spec.shtml */
+
+ /* the object must be an array of 4 or 5 elements */
+ if (!json_object_is_type(obj, json_type_array))
+ goto error;
+ count = json_object_array_length(obj);
+ if (count < 4 || count > 5)
+ goto error;
+
+ /* get the 5 elements: type id name request token */
+ type = json_object_array_get_idx(obj, 0);
+ id = json_object_array_get_idx(obj, 1);
+ name = json_object_array_get_idx(obj, 2);
+ req = json_object_array_get_idx(obj, 3);
+ token = json_object_array_get_idx(obj, 4);
+
+ /* check the types: int string string object string */
+ if (!json_object_is_type(type, json_type_int))
+ goto error;
+ if (!json_object_is_type(id, json_type_string))
+ goto error;
+ if (!json_object_is_type(name, json_type_string))
+ goto error;
+ if (!json_object_is_type(req, json_type_object))
+ goto error;
+ if (token != NULL && !json_object_is_type(token, json_type_string))
+ goto error;
+
+ /* the type is only 2 */
+ num = json_object_get_int(type);
+ if (num != 2)
+ goto error;
+
+ /* checks the api/verb structure of name */
+ api = json_object_get_string(name);
+ for (lenapi = 0 ; api[lenapi] && api[lenapi] != '/' ; lenapi++);
+ if (!lenapi || !api[lenapi])
+ goto error;
+ verb = &api[lenapi+1];
+ for (lenverb = 0 ; verb[lenverb] && verb[lenverb] != '/' ; lenverb++);
+ if (!lenverb || !verb[lenverb])
+ goto error;
+
+ /* allocates the request data */
+ wsreq = malloc(sizeof *wsreq);
+ if (wsreq == NULL)
+ goto error;
+
+ /* fill and record the request */
+ wsreq->aws = aws;
+ wsreq->id = json_object_get(id);
+ wsreq->name = json_object_get(name);
+ wsreq->token = json_object_get(token);
+ wsreq->request = json_object_get(req);
+ wsreq->next = aws->requests;
+ aws->requests = wsreq;
+ json_object_put(obj);
+
+ r.data = wsreq;
+ r.itf = &wsreq_itf;
+ rc = afb_apis_handle(r, aws->context, api, lenapi, verb, lenverb);
+ if (rc == 0)
+ wsreq_fail(wsreq, "ail", "api not found");
+ return 1;
+
+error:
+ json_object_put(obj);
+ return 0;
+}
+
+static void aws_on_content(struct afb_websock *ws, int last, size_t size)
+{
+ ssize_t rrc;
+ char buffer[8000];
+ struct json_object *obj;
+
+ json_tokener_reset(ws->tokener);
+ while(size) {
+ rrc = websock_read(ws->ws, buffer,
+ size > sizeof buffer ? sizeof buffer : size);
+ if (rrc < 0) {
+ websock_close(ws->ws);
+ return;
+ }
+ size -= (size_t)rrc;
+ obj = json_tokener_parse_ex(ws->tokener, buffer, (int)rrc);
+ if (obj != NULL) {
+ if (!aws_handle_json(ws, obj)) {
+ websock_close(ws->ws);
+ return;
+ }
+ } else if (json_tokener_get_error(ws->tokener) != json_tokener_continue) {
+ websock_close(ws->ws);
+ return;
}
}
- return result;
+}
+
+
+static struct afb_arg wsreq_get(struct afb_wsreq *wsreq, const char *name)
+{
+ struct afb_arg arg;
+ struct json_object *value;
+
+ if (json_object_object_get_ex(wsreq->request, name, &value)) {
+ arg.name = name;
+ arg.value = json_object_get_string(value);
+ } else {
+ arg.name = NULL;
+ arg.value = NULL;
+ }
+ arg.size = 0;
+ arg.is_file = 0;
+ return arg;
+}
+
+static void wsreq_iterate(struct afb_wsreq *wsreq, int (*iterator)(void *closure, struct afb_arg arg), void *closure)
+{
+ struct afb_arg arg;
+ struct json_object_iterator it = json_object_iter_begin(wsreq->request);
+ struct json_object_iterator end = json_object_iter_end(wsreq->request);
+
+ arg.size = 0;
+ arg.is_file = 0;
+ while(!json_object_iter_equal(&it, &end)) {
+ arg.name = json_object_iter_peek_name(&it);
+ arg.value = json_object_get_string(json_object_iter_peek_value(&it));
+ if (!iterator(closure, arg))
+ break;
+ json_object_iter_next(&it);
+ }
+}
+
+static int wsreq_session_create(struct afb_wsreq *wsreq)
+{
+ struct AFB_clientCtx *context = wsreq->aws->context;
+ if (context->created)
+ return 0;
+ return wsreq_session_check(wsreq, 1);
+}
+
+static int wsreq_session_check(struct afb_wsreq *wsreq, int refresh)
+{
+ const char *token;
+ struct AFB_clientCtx *context = wsreq->aws->context;
+
+ if (wsreq->token == NULL)
+ return 0;
+
+ token = json_object_get_string(wsreq->token);
+ if (token == NULL)
+ return 0;
+
+ if (!ctxTokenCheck (context, token))
+ return 0;
+
+ if (refresh) {
+ ctxTokenNew (context);
+ }
+
+ return 1;
+}
+
+static void wsreq_session_close(struct afb_wsreq *wsreq)
+{
+ struct AFB_clientCtx *context = wsreq->aws->context;
+ ctxClientClose(context);
+}
+
+
+static void wsreq_reply(struct afb_wsreq *wsreq, int retcode, const char *status, const char *info, json_object *resp)
+{
+ json_object *root, *request, *reply;
+ const char *message;
+
+ /* builds the answering structure */
+ root = json_object_new_object();
+ json_object_object_add(root, "jtype", json_object_new_string("afb-reply"));
+ request = json_object_new_object();
+ json_object_object_add(root, "request", request);
+ json_object_object_add(request, "status", json_object_new_string(status));
+ if (info)
+ json_object_object_add(request, "info", json_object_new_string(info));
+ if (resp)
+ json_object_object_add(root, "response", resp);
+
+ /* make the reply */
+ reply = json_object_new_array();
+ json_object_array_add(reply, json_object_new_int(retcode));
+ json_object_array_add(reply, wsreq->id);
+ json_object_array_add(reply, root);
+ json_object_array_add(reply, json_object_new_string(wsreq->aws->context->token));
+
+ /* emits the reply */
+ message = json_object_to_json_string(reply);
+ websock_text(wsreq->aws->ws, message, strlen(message));
+
+ /* TODO eliminates the wsreq */
+}
+
+static void wsreq_fail(struct afb_wsreq *wsreq, const char *status, const char *info)
+{
+ wsreq_reply(wsreq, 4, status, info, NULL);
+}
+
+static void wsreq_success(struct afb_wsreq *wsreq, json_object *obj, const char *info)
+{
+ wsreq_reply(wsreq, 3, "success", info, obj);
}
*/
int afb_websock_check(struct afb_hreq *hreq, int *later);
-struct afb_websock *afb_websock_create(struct MHD_Connection *connection);
+struct afb_websock *afb_websock_create(struct afb_hreq *hreq);
+++ /dev/null
-/*
- * Copyright (C) 2015 "IoT.bzh"
- * Author "Fulup Ar Foll"
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#define _GNU_SOURCE
-
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-
-/*
-#include <dirent.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-*/
-
-#include "local-def.h"
-#include "afb-req-itf.h"
-
-// handle to hold queryAll values
-typedef struct {
- char *msg;
- size_t idx;
- size_t len;
-} queryHandleT;
-
-// Error code are requested through function to manage json usage count
-typedef struct {
- int level;
- const char* label;
- json_object *json;
-} AFB_errorT;
-
-static AFB_errorT AFBerr [AFB_UNAUTH+1];
-static json_object *jTypeStatic;
-
-PUBLIC int verbose;
-
-static const char *ERROR_LABEL[] = {"false", "true", "fatal", "fail", "warning", "empty", "success", "done", "unauth"};
-
-
-// Helper to retrieve argument from connection
-const char* getQueryValue(const AFB_request * request, const char *name) {
- return afb_req_argument(*request->areq, name);
-}
-
-static int getQueryCB (queryHandleT *query, struct afb_arg arg) {
- if (query->idx >= query->len)
- return 0;
- query->idx += (unsigned)snprintf (&query->msg[query->idx], query->len-query->idx, " %s: %s\'%s\',", arg.name, arg.is_file?"FILE=":"", arg.value);
- return 1; /* continue to iterate */
-}
-
-// Helper to retrieve argument from connection
-size_t getQueryAll(AFB_request * request, char *buffer, size_t len) {
- queryHandleT query;
- buffer[0] = '\0'; // start with an empty string
- query.msg = buffer;
- query.len = len;
- query.idx = 0;
-
- afb_req_iterate(*request->areq, (void*)getQueryCB, &query);
- buffer[len-1] = 0;
- return query.idx >= len ? len - 1 : query.idx;
-}
-
-#if 0
-char* getPostPath (AFB_request *request) {
- AFB_PostHandle *postHandle = getPostHandle(request);
- AFB_PostCtx *postFileCtx;
-
- if (postHandle == NULL) return NULL;
-
- postFileCtx = (AFB_PostCtx*) postHandle->ctx;
- if (postFileCtx == NULL) return NULL;
-
- return (postFileCtx->path);
-}
-
-json_object* getPostFile (AFB_request *request, AFB_PostItem *item, char* destination) {
-
- AFB_PostHandle *postHandle = getPostHandle(request);
- AFB_PostCtx *postFileCtx;
- char filepath[512];
- ssize_t len;
-
- // This is called after PostForm and then after DonePostForm
- if (item == NULL) {
- json_object* jresp;
- postFileCtx = (AFB_PostCtx*) postHandle->ctx;
-
- // No Post Application Context [something really bad happen]
- if (postFileCtx == NULL) {
- request->errcode = MHD_HTTP_EXPECTATION_FAILED;
- return(jsonNewMessage(AFB_FAIL,"Error: PostForm no PostContext to free\n"));
- }
-
- // We have a context but last Xform iteration fail or application set a message
- if (request->jresp != NULL) {
- jresp = request->jresp; // retrieve previous error from postCtx
- } else jresp = jsonNewMessage(AFB_SUCCESS,"getPostFile Post Request done");
-
- // Error or not let's free all resources
- close(postFileCtx->fd);
- free (postFileCtx->path);
- free (postFileCtx);
- return (jresp);
- }
-#if defined(PLEASE_FIX_ME_THE_ERROR_IS_postFileCtx_NOT_INITIALIZED)
- // Make sure it's a valid PostForm request
- if (!request->post && request->post->type != AFB_POST_FORM) {
- postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"This is not a valid PostForm request\n");
- goto ExitOnError;
- }
-
- // Check this is a file element
- if (item->filename == NULL) {
- postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"No Filename attached to key=%s\n", item->key);
- goto ExitOnError;
- }
-
- // Check we got something in buffer
- if (item->len <= 0) {
- postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Buffer size NULL key=%s]\n", item->key);
- goto ExitOnError;
- }
-#endif
- // Extract Application Context from posthandle [NULL == 1st iteration]
- postFileCtx = (AFB_PostCtx*) postHandle->ctx;
-
- // This is the 1st Item iteration let's open output file and allocate necessary resources
- if (postFileCtx == NULL) {
- DIR* destDir;
-
- // Create an application specific context
- postFileCtx = calloc (1, sizeof(AFB_PostCtx)); // May place anything here until post->completeCB handle resources liberation
-
- // attach application to postHandle
- postHandle->ctx = (void*) postFileCtx; // May place anything here until post->completeCB handle resources liberation
-
- // Build destination directory full path
- if (destination[0] != '/') {
- strncpy (filepath, request->config->sessiondir, sizeof(filepath));
- strncat (filepath, "/", sizeof(filepath));
- strncat (filepath, destination, sizeof(filepath));
- } else strncpy (filepath, destination, sizeof(filepath));
-
-
- // make sure destination directory exist
- destDir = opendir (filepath);
- if (destDir == NULL) {
- if (mkdir(filepath,O_RDWR | S_IRWXU | S_IRGRP) < 0) {
- postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to Create destination directory=[%s] error=%s\n", filepath, strerror(errno));
- goto ExitOnError;
- }
- } else closedir (destDir);
-
- strncat (filepath, "/", sizeof(filepath));
- strncat (filepath, item->filename, sizeof(filepath));
-
- postFileCtx->path = strdup (filepath);
- if (verbose) fprintf(stderr, "getPostFile path=%s\n", filepath);
-
- if((postFileCtx->fd = open(filepath, O_RDWR |O_CREAT, S_IRWXU|S_IRGRP)) <= 0) {
- postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to Create destination File=[%s] error=%s\n", filepath, strerror(errno));
- goto ExitOnError;
- }
- } else {
- // reuse existing application context
- postFileCtx = (AFB_PostCtx*) postHandle->ctx;
- }
-
- // Check we successfully wrote full buffer
- len = write (postFileCtx->fd, item->data, item->len);
- if ((ssize_t)item->len != len) {
- postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to write file [%s] at [%s] error=\n", item->filename, strerror(errno));
- goto ExitOnError;
- }
-
- // every intermediary iteration should return Success & NULL
- request->errcode = MHD_HTTP_OK;
- return NULL;
-
-ExitOnError:
- request->errcode = MHD_HTTP_EXPECTATION_FAILED;
- return NULL;
-}
-
-#endif
-
-static void jsoninit()
-{
- int idx, verbosesav;
-
- if (jTypeStatic)
- return;
-
- // initialise JSON constant messages and increase reference count to make them permanent
- verbosesav = verbose;
- verbose = 0; // run initialisation in silent mode
- jTypeStatic = json_object_new_string ("AFB_message");
- for (idx = 0; idx <= AFB_UNAUTH; idx++) {
- AFBerr[idx].level = idx;
- AFBerr[idx].label = ERROR_LABEL [idx];
- AFBerr[idx].json = jsonNewMessage (idx, NULL);
- }
- verbose = verbosesav;
-}
-
-
-// build an ERROR message and return it as a valid json object
-json_object *json_add_status (json_object *obj, const char *status, const char *info)
-{
- if (obj == NULL)
- obj = json_object_new_object();
- json_object_object_add(obj, "status", json_object_new_string(status));
- if (info)
- json_object_object_add(obj, "info", json_object_new_string(info));
- return obj;
-}
-
-// build an ERROR message and return it as a valid json object
-json_object *json_add_status_v (json_object *obj, const char *status, const char *info, va_list args)
-{
- char *message;
- if (info == NULL || vasprintf(&message, info, args) < 0)
- message = NULL;
- obj = json_add_status(obj, status, message);
- free(message);
- return obj;
-}
-
-
-// build an ERROR message and return it as a valid json object
-json_object *json_add_status_f (json_object *obj, const char *status, const char *info, ...)
-{
- va_list args;
- va_start(args, info);
- obj = json_add_status_v(obj, status, info, args);
- va_end(args);
- return obj;
-}
-
-
-
-// build an ERROR message and return it as a valid json object
-struct json_object *jsonNewMessage (AFB_error level, char* format, ...) {
- static int count = 0;
- json_object * AFBResponse;
- va_list args;
- char message [512];
-
- jsoninit();
-
- // format message
- if (format != NULL) {
- va_start(args, format);
- vsnprintf (message, sizeof (message), format, args);
- va_end(args);
- }
-
- AFBResponse = json_object_new_object();
- json_object_object_add (AFBResponse, "jtype", json_object_get (jTypeStatic));
- json_object_object_add (AFBResponse, "status" , json_object_new_string (ERROR_LABEL[level]));
- if (format != NULL) {
- json_object_object_add (AFBResponse, "info" , json_object_new_string (message));
- }
- if (verbose) {
- fprintf (stderr, "AFB:%-6s [%3d]: ", AFBerr [level].label, count++);
- if (format != NULL) {
- fprintf (stderr, "%s", message);
- } else {
- fprintf (stderr, "No Message");
- }
- fprintf (stderr, "\n");
- }
-
- return (AFBResponse);
-}
-
-#if 0
-{
- jtype: "AFB_message"
- request:
- {
- prefix: "",
- api: "",
- status: "", /* exist, fail, empty, null, processed */
- info: "",
- uuid: "",
- token: "",
- timeout: ""
- }
- response: ...
-}
-#endif
-
#define LOCAL_DEF_H
#include <json.h>
-#include <magic.h>
#include <microhttpd.h>
/* other definitions --------------------------------------------------- */
#define DEFLT_HTTP_TIMEOUT 15 // Max MibMicroHttp timeout
#define AFB_MAX_PLUGINS 20 // Max number of plugins for a given binder
-#ifndef FALSE
- #define FALSE 0
-#endif
-#ifndef TRUE
- #define TRUE 1
-#endif
-
-#define PUBLIC
-#define STATIC static
-#define FAILED -1
-
-#define AUDIO_BUFFER "/tmp/buf"
-
-extern int verbose; // this is the only global variable
-
-// prebuild json error are constructed in helper-api.c
-typedef enum { AFB_FALSE, AFB_TRUE, AFB_FATAL, AFB_FAIL, AFB_WARNING, AFB_EMPTY, AFB_SUCCESS, AFB_DONE, AFB_UNAUTH} AFB_error;
-
#define MAX_POST_SIZE 4096 // maximum size for POST data
#define CTX_NBCLIENTS 10 // allow a default of 10 authenticated clients
-
-
-
-
-
enum AFB_Mode;
struct MHD_Daemon *httpd; // structure for httpd handler
int fakemod; // respond to GET/POST request without interacting with sndboard
int readyfd; // a #fd to signal when ready to serve
- magic_t magic; // Mime type file magic lib
struct afb_hsrv_handler *handlers;
};
typedef struct AFB_config AFB_config;
typedef struct AFB_session AFB_session;
-#include "proto-def.h"
-
#endif /* LOCAL_DEF_H */
#include "local-def.h"
#include "afb-apis.h"
+#include "afb-hsrv.h"
#include "session.h"
+#include "verbose.h"
+#include "utils-upoll.h"
#if !defined(PLUGIN_INSTALL_DIR)
#error "you should define PLUGIN_INSTALL_DIR"
}
// load config from disk and merge with CLI option
-static AFB_error config_set_default (AFB_session * session)
+static void config_set_default (AFB_session * session)
{
static char cacheTimeout [10];
// default HTTP port
- if (session->config->httpdPort == 0) session->config->httpdPort=1234;
+ if (session->config->httpdPort == 0)
+ session->config->httpdPort = 1234;
// default Plugin API timeout
- if (session->config->apiTimeout == 0) session->config->apiTimeout=DEFLT_API_TIMEOUT;
+ if (session->config->apiTimeout == 0)
+ session->config->apiTimeout = DEFLT_API_TIMEOUT;
// default AUTH_TOKEN
- if (session->config->token == NULL) session->config->token= DEFLT_AUTH_TOKEN;
+ if (session->config->token == NULL)
+ session->config->token = DEFLT_AUTH_TOKEN;
// cache timeout default one hour
- if (session->config->cacheTimeout == 0) session->config->cacheTimeout=DEFLT_CACHE_TIMEOUT;
+ if (session->config->cacheTimeout == 0)
+ session->config->cacheTimeout = DEFLT_CACHE_TIMEOUT;
// cache timeout default one hour
- if (session->config->cntxTimeout == 0) session->config->cntxTimeout=DEFLT_CNTX_TIMEOUT;
+ if (session->config->cntxTimeout == 0)
+ session->config->cntxTimeout = DEFLT_CNTX_TIMEOUT;
if (session->config->rootdir == NULL) {
session->config->rootdir = getenv("AFBDIR");
}
// if no Angular/HTML5 rootbase let's try '/' as default
- if (session->config->rootbase == NULL) {
+ if (session->config->rootbase == NULL)
session->config->rootbase = "/opa";
- }
- if (session->config->rootapi == NULL) {
+ if (session->config->rootapi == NULL)
session->config->rootapi = "/api";
- }
- if (session->config->ldpaths == NULL) {
+ if (session->config->ldpaths == NULL)
session->config->ldpaths = PLUGIN_INSTALL_DIR;
- }
// if no session dir create a default path from rootdir
if (session->config->sessiondir == NULL) {
// cacheTimeout is an integer but HTTPd wants it as a string
snprintf (cacheTimeout, sizeof (cacheTimeout),"%d", session->config->cacheTimeout);
session->cacheTimeout = cacheTimeout; // httpd uses cacheTimeout string version
-
- return AFB_SUCCESS;
}
switch (optc)
{
case SET_VERBOSE:
- verbose = 1;
+ verbosity++;
break;
case SET_TCP_PORT:
case SET_ROOT_DIR:
if (optarg == 0) goto needValueForOption;
session->config->rootdir = optarg;
- if (verbose) fprintf(stderr, "Forcing Rootdir=%s\n",session->config->rootdir);
+ if (verbosity) fprintf(stderr, "Forcing Rootdir=%s\n",session->config->rootdir);
break;
case SET_ROOT_BASE:
if (optarg == 0) goto needValueForOption;
session->config->rootbase = optarg;
- if (verbose) fprintf(stderr, "Forcing Rootbase=%s\n",session->config->rootbase);
+ if (verbosity) fprintf(stderr, "Forcing Rootbase=%s\n",session->config->rootbase);
break;
case SET_ROOT_API:
if (optarg == 0) goto needValueForOption;
session->config->rootapi = optarg;
- if (verbose) fprintf(stderr, "Forcing Rootapi=%s\n",session->config->rootapi);
+ if (verbosity) fprintf(stderr, "Forcing Rootapi=%s\n",session->config->rootapi);
break;
case SET_ALIAS:
} else {
aliasdir[aliascount].path = optarg;
aliasdir[aliascount].len = strlen(aliasdir[aliascount].url);
- if (verbose) fprintf(stderr, "Alias url=%s path=%s\n", aliasdir[aliascount].url, aliasdir[aliascount].path);
+ if (verbosity) fprintf(stderr, "Alias url=%s path=%s\n", aliasdir[aliascount].url, aliasdir[aliascount].path);
aliascount++;
}
} else {
/*----------------------------------------------------------
| timeout signalQuit
- |
+--------------------------------------------------------- */
-void signalQuit (int signum) {
-
- sigset_t sigset;
-
- // unlock timeout signal to allow a new signal to come
- sigemptyset (&sigset);
- sigaddset (&sigset, SIGABRT);
- sigprocmask (SIG_UNBLOCK, &sigset, 0);
-
- fprintf (stderr, "ERR: Received signal quit\n");
- syslog (LOG_ERR, "Daemon got kill3 & quit [please report bug]");
- exit(1);
+void signalQuit (int signum)
+{
+ fprintf(stderr, "Terminating signal received %s\n", strsignal(signum));
+ exit(1);
}
sigprocmask(SIG_UNBLOCK, &sigset, 0);
longjmp(*error_handler, signum);
}
+ if (signum == SIGALRM)
+ return;
+ fprintf(stderr, "Unmonitored signal received %s\n", strsignal(signum));
+ exit(2);
}
static void install_error_handlers()
}
}
-/*----------------------------------------------------------
- | listenLoop
- | Main listening HTTP loop
- +--------------------------------------------------------- */
-static void listenLoop (AFB_session *session) {
- AFB_error err;
-
- // ------ Start httpd server
-
- err = httpdStart (session);
- if (err != AFB_SUCCESS) return;
-
- if (session->readyfd != 0) {
- static const char readystr[] = "READY=1";
- write(session->readyfd, readystr, sizeof(readystr) - 1);
- close(session->readyfd);
- }
-
- // infinite loop
- httpdLoop(session);
-
- fprintf (stderr, "hoops returned from infinite loop [report bug]\n");
-}
-
/*----------------------------------------------------------
| daemonize
| set the process in background
+--------------------------------------------------------- */
int main(int argc, char *argv[]) {
+ int rc;
AFB_session *session;
// open syslog if ever needed
install_error_handlers();
// ------------------ Some useful default values -------------------------
- if ((session->background == 0) && (session->foreground == 0)) session->foreground=1;
+ if ((session->background == 0) && (session->foreground == 0))
+ session->foreground = 1;
// ------------------ clean exit on CTR-C signal ------------------------
if (signal (SIGINT, signalQuit) == SIG_ERR || signal (SIGABRT, signalQuit) == SIG_ERR) {
return 1;
}
-
// let's run this program with a low priority
nice (20);
// let's not take the risk to run as ROOT
//if (getuid() == 0) goto errorNoRoot;
-#if defined(ALLOWS_SESSION_FILES)
- // check session dir and create if it does not exist
- if (sessionCheckdir (session) != AFB_SUCCESS) {
- fprintf (stderr,"\nERR: AFB-daemon cannot read/write session dir\n\n");
- exit (1);
- }
-#endif
- if (verbose) fprintf (stderr, "AFB: notice Init config done\n");
+ if (verbosity) fprintf (stderr, "AFB: notice Init config done\n");
// ---- run in foreground mode --------------------
if (session->foreground) {
- if (verbose) fprintf (stderr,"AFB: notice Foreground mode\n");
+ if (verbosity) fprintf (stderr,"AFB: notice Foreground mode\n");
} // end foreground
// --------- run in background mode -----------
if (session->background) {
- if (verbose) printf ("AFB: Entering background mode\n");
+ if (verbosity) printf ("AFB: Entering background mode\n");
daemonize(session);
} // end background-foreground
- listenLoop(session);
- if (verbose) printf ("\n---- Application Framework Binder Normal End ------\n");
- exit(0);
+ // ------ Start httpd server
+
+ rc = afb_hsrv_start (session);
+ if (!rc)
+ exit(1);
+
+ if (session->readyfd != 0) {
+ static const char readystr[] = "READY=1";
+ write(session->readyfd, readystr, sizeof(readystr) - 1);
+ close(session->readyfd);
+ }
+
+ // infinite loop
+ for(;;)
+ upoll_wait(30000);
+
+ if (verbosity)
+ fprintf (stderr, "hoops returned from infinite loop [report bug]\n");
+ return 0;
}
+++ /dev/null
-/*
- proto-def.h -- provide a REST/HTTP interface
-
- Copyright (C) 2015, Fulup Ar Foll
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-// helper-api
-extern const char* getQueryValue (const AFB_request * request, const char *name);
-extern size_t getQueryAll(AFB_request * request, char *query, size_t len);
-/*
-extern json_object* getPostFile (AFB_request *request, AFB_PostItem *item, char* destination) ;
-extern char* getPostPath (AFB_request *request);
-*/
-
-extern json_object *jsonNewMessage (AFB_error level, char* format, ...);
-
-
-// Httpd server
-extern AFB_error httpdStart (AFB_session *session);
-extern AFB_error httpdLoop (AFB_session *session);
-extern void httpdStop (AFB_session *session);
-
-
-
-
}
// This function will return exiting client context or newly created client context
-struct AFB_clientCtx *ctxClientGet (const char *uuid)
+struct AFB_clientCtx *ctxClientGetForUuid (const char *uuid)
{
uuid_t newuuid;
struct AFB_clientCtx *clientCtx;
return NULL;
}
+struct AFB_clientCtx *ctxClientGet(struct AFB_clientCtx *clientCtx)
+{
+ if (clientCtx != NULL)
+ clientCtx->refcount++;
+ return clientCtx;
+}
+
void ctxClientPut(struct AFB_clientCtx *clientCtx)
{
if (clientCtx != NULL) {
extern void ctxStoreInit (int nbSession, int timeout, int apicount, const char *initok);
-extern struct AFB_clientCtx *ctxClientGet (const char *uuid);
+extern struct AFB_clientCtx *ctxClientGetForUuid (const char *uuid);
+extern struct AFB_clientCtx *ctxClientGet(struct AFB_clientCtx *clientCtx);
extern void ctxClientPut(struct AFB_clientCtx *clientCtx);
extern void ctxClientClose (struct AFB_clientCtx *clientCtx);
extern int ctxTokenCheck (struct AFB_clientCtx *clientCtx, const char *token);
--- /dev/null
+/*
+ * Copyright 2016 IoT.bzh
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed 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 <sys/epoll.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+#include <assert.h>
+
+#include "utils-upoll.h"
+
+
+struct upoll
+{
+ int fd;
+ void (*read)(void *);
+ void (*write)(void *);
+ void (*hangup)(void *);
+ void *closure;
+ struct upoll *next;
+};
+
+static int pollfd = 0;
+static struct upoll *head = NULL;
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+
+int upoll_is_valid(struct upoll *upoll)
+{
+ struct upoll *it = head;
+ while (it != NULL) {
+ if (it == upoll)
+ return 1;
+ it = it->next;
+ }
+ return 0;
+}
+
+struct upoll *upoll_open(int fd, void *closure)
+{
+ struct epoll_event e;
+ struct upoll *result;
+ int rc;
+
+ /* opens the epoll stream */
+ if (pollfd == 0) {
+ pollfd = epoll_create1(EPOLL_CLOEXEC);
+ if (pollfd == 0) {
+ pollfd = dup(0);
+ close(0);
+ }
+ if (pollfd < 0) {
+ pollfd = 0;
+ return NULL;
+ }
+ }
+
+ /* allocates */
+ result = calloc(1, sizeof *result);
+ if (result == NULL)
+ return NULL;
+
+ /* init */
+ result->fd = fd;
+ result->closure = closure;
+ pthread_mutex_lock(&mutex);
+ result->next = head;
+ head = result;
+ pthread_mutex_unlock(&mutex);
+
+ /* records */
+ e.events = 0;
+ e.data.ptr = result;
+ rc = epoll_ctl(pollfd, EPOLL_CTL_ADD, fd, &e);
+ if (rc == 0)
+ return result;
+
+ /* revert on error */
+ rc = errno;
+ upoll_close(result);
+ errno = rc;
+ return NULL;
+}
+
+static int update(struct upoll *upoll)
+{
+ struct epoll_event e;
+ e.events = (uint32_t)((upoll->read != NULL ? EPOLLIN : 0 )
+ | (upoll->write != NULL ? EPOLLOUT : 0));
+ e.data.ptr = upoll;
+ return epoll_ctl(pollfd, EPOLL_CTL_MOD, upoll->fd, &e);
+}
+
+int upoll_on_readable(struct upoll *upoll, void (*process)(void *))
+{
+ assert(pollfd != 0);
+ assert(upoll_is_valid(upoll));
+
+ upoll->read = process;
+ return update(upoll);
+}
+
+int upoll_on_writable(struct upoll *upoll, void (*process)(void *))
+{
+ assert(pollfd != 0);
+ assert(upoll_is_valid(upoll));
+
+ upoll->write = process;
+ return update(upoll);
+}
+
+void upoll_on_hangup(struct upoll *upoll, void (*process)(void *))
+{
+ assert(pollfd != 0);
+ assert(upoll_is_valid(upoll));
+
+ upoll->hangup = process;
+}
+
+void upoll_close(struct upoll *upoll)
+{
+ struct upoll **it;
+
+ assert(pollfd != 0);
+ assert(upoll_is_valid(upoll));
+
+ epoll_ctl(pollfd, EPOLL_CTL_DEL, upoll->fd, NULL);
+ pthread_mutex_lock(&mutex);
+ it = &head;
+ while (*it != upoll)
+ it = &(*it)->next;
+ *it = upoll->next;
+ pthread_mutex_unlock(&mutex);
+ free(upoll);
+}
+
+void upoll_wait(int timeout)
+{
+ int rc;
+ struct epoll_event e;
+ struct upoll *upoll;
+
+ if (pollfd == 0)
+ return;
+
+ rc = epoll_wait(pollfd, &e, 1, timeout);
+ if (rc == 1) {
+ upoll = e.data.ptr;
+ if ((e.events & EPOLLIN) && upoll->read)
+ upoll->read(upoll->closure);
+ if ((e.events & EPOLLOUT) && upoll->write)
+ upoll->write(upoll->closure);
+ if ((e.events & EPOLLHUP) && upoll->hangup)
+ upoll->hangup(upoll->closure);
+ }
+}
+
--- /dev/null
+/*
+ * Copyright 2016 IoT.bzh
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed 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.
+ */
+
+struct upoll;
+
+extern int upoll_is_valid(struct upoll *upoll);
+
+extern struct upoll *upoll_open(int fd, void *closure);
+
+extern int upoll_on_readable(struct upoll *upoll, void (*process)(void *closure));
+extern int upoll_on_writable(struct upoll *upoll, void (*process)(void *closure));
+
+extern void upoll_on_hangup(struct upoll *upoll, void (*process)(void *closure));
+
+extern void upoll_close(struct upoll *upoll);
+
+extern void upoll_wait(int timeout);
+
--- /dev/null
+/*
+ Copyright 2015 IoT.bzh
+
+ author: José Bollo <jose.bollo@iot.bzh>
+
+ Licensed 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 "verbose.h"
+
+#if !defined(NDEBUG)
+int verbosity = 1;
+#else
+void verbose_error(const char *file, int line)
+{
+ syslog(LOG_ERR, "error file %s line %d", file, line);
+}
+#endif
+
--- /dev/null
+/*
+ Copyright 2016 IoT.bzh
+
+ author: José Bollo <jose.bollo@iot.bzh>
+
+ Licensed 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.
+*/
+
+#if !defined(NDEBUG)
+#include <syslog.h>
+extern int verbosity;
+#define LOGUSER(app) openlog(app,LOG_PERROR,LOG_USER)
+#define LOGAUTH(app) openlog(app,LOG_PERROR,LOG_AUTH)
+#define ERROR(...) syslog(LOG_ERR,__VA_ARGS__)
+#define WARNING(...) do{if(verbosity)syslog(LOG_WARNING,__VA_ARGS__);}while(0)
+#define NOTICE(...) do{if(verbosity)syslog(LOG_NOTICE,__VA_ARGS__);}while(0)
+#define INFO(...) do{if(verbosity>1)syslog(LOG_INFO,__VA_ARGS__);}while(0)
+#define DEBUG(...) do{if(verbosity>2)syslog(LOG_DEBUG,__VA_ARGS__);}while(0)
+#else
+#include <syslog.h>
+#define LOGUSER(app) openlog(app,LOG_PERROR,LOG_USER)
+#define LOGAUTH(app) openlog(app,LOG_PERROR,LOG_AUTH)
+extern void verbose_error(const char *file, int line);
+#define ERROR(...) verbose_error(__FILE__,__LINE__)
+#define WARNING(...) do{/*nothing*/}while(0)
+#define NOTICE(...) do{/*nothing*/}while(0)
+#define INFO(...) do{/*nothing*/}while(0)
+#define DEBUG(...) do{/*nothing*/}while(0)
+#endif
Code Review / src / app-framework-binder.git / commitdiff