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daemon.c
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/*
Copyright (C) 2013 CurlyMo
This file is part of pilight.
pilight 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.
pilight 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 pilight. If not, see <http://www.gnu.org/licenses/>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/time.h>
#define __USE_GNU
#include <pthread.h>
#include <ctype.h>
#include "pilight.h"
#include "common.h"
#include "settings.h"
#include "config.h"
#include "gc.h"
#include "log.h"
#include "options.h"
#include "threads.h"
#include "socket.h"
#include "json.h"
#include "wiringPi.h"
#include "irq.h"
#include "hardware.h"
#ifdef UPDATE
#include "update.h"
#endif
#ifdef WEBSERVER
#include "webserver.h"
#endif
typedef enum {
RECEIVER,
SENDER,
CONTROLLER,
NODE,
GUI,
WEB
} client_type_t;
char clients[6][11] = {
"receiver\0",
"sender\0",
"controller\0",
"node\0",
"gui\0",
"web\0"
};
typedef enum {
WELCOME,
IDENTIFY,
REJECT,
REQUEST,
CONFIG,
FORWARD
} steps_t;
typedef struct sendqueue_t {
unsigned int id;
char *message;
char *protoname;
struct protocol_t *protopt;
int code[255];
struct sendqueue_t *next;
} sendqueue_t;
struct sendqueue_t *sendqueue;
struct sendqueue_t *sendqueue_head;
pthread_mutex_t sendqueue_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
pthread_cond_t sendqueue_signal = PTHREAD_COND_INITIALIZER;
int sendqueue_number = 0;
typedef struct bcqueue_t {
unsigned int id;
JsonNode *jmessage;
char *protoname;
struct bcqueue_t *next;
} bcqueue_t;
struct bcqueue_t *bcqueue;
struct bcqueue_t *bcqueue_head;
pthread_mutex_t bcqueue_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
pthread_cond_t bcqueue_signal = PTHREAD_COND_INITIALIZER;
int bcqueue_number = 0;
/* The pid_file and pid of this daemon */
char *pid_file;
pid_t pid;
/* The duration of the received pulse */
int duration = 0;
/* The number of receivers connected */
int receivers = 0;
/* Daemonize or not */
int nodaemon = 0;
/* Are we already running */
int running = 1;
/* How many times does the code need to be resend */
int send_repeat;
/* How many times does a code need to received*/
int receive_repeat = RECEIVE_REPEATS;
/* Are we currently sending code */
int sending = 0;
/* If we have accepted a client, handshakes will store the type of client */
short handshakes[MAX_CLIENTS];
/* Which mode are we running in: 1 = server, 2 = client */
unsigned short runmode = 1;
/* Socket identifier to the server if we are running as client */
int sockfd = 0;
/* In the client running in incognito mode */
unsigned short incognito_mode = 0;
/* Use the lirc_rpi module or plain GPIO */
const char *hw_mode = HW_MODE;
/* Thread pointers */
pthread_t pth;
/* While loop conditions */
unsigned short main_loop = 1;
/* Only update the config file on exit when it's valid */
unsigned short valid_config = 0;
/* Used hardware module */
struct hardware_t *hardware = NULL;
/* Reset repeats after a certian amount of time */
struct timeval tv;
#ifdef WEBSERVER
/* Do we enable the webserver */
int webserver_enable = WEBSERVER_ENABLE;
/* On what port does the webserver run */
int webserver_port = WEBSERVER_PORT;
/* The webroot of pilight */
char *webserver_root;
#endif
#ifdef UPDATE
/* Do we need to check for updates */
int update_check = UPDATE_CHECK;
#endif
void broadcast_queue(char *protoname, JsonNode *json) {
struct timeval tcurrent;
gettimeofday(&tcurrent, NULL);
pthread_mutex_lock(&bcqueue_lock);
struct bcqueue_t *bnode = malloc(sizeof(struct bcqueue_t));
bnode->id = 1000000 * (unsigned int)tcurrent.tv_sec + (unsigned int)tcurrent.tv_usec;
char *jstr = json_stringify(json, NULL);
bnode->jmessage = json_decode(jstr);
sfree((void *)&jstr);
bnode->protoname = malloc(strlen(protoname)+1);
strcpy(bnode->protoname, protoname);
if(bcqueue_number == 0) {
bcqueue = bnode;
bcqueue_head = bnode;
} else {
bcqueue_head->next = bnode;
bcqueue_head = bnode;
}
bcqueue_number++;
pthread_mutex_unlock(&bcqueue_lock);
pthread_cond_signal(&bcqueue_signal);
}
void *broadcast(void *param) {
int i = 0, broadcasted = 0;
pthread_mutex_lock(&bcqueue_lock);
while(main_loop) {
if(bcqueue_number > 0) {
pthread_mutex_lock(&bcqueue_lock);
broadcasted = 0;
JsonNode *jret = NULL;
/* Update the config */
if(config_update(bcqueue->protoname, bcqueue->jmessage, &jret) == 0) {
char *conf = json_stringify(jret, NULL);
for(i=0;i<MAX_CLIENTS;i++) {
if(handshakes[i] == GUI) {
socket_write(socket_clients[i], conf);
broadcasted = 1;
}
}
if(broadcasted == 1) {
logprintf(LOG_DEBUG, "broadcasted: %s", conf);
}
sfree((void *)&conf);
}
if(jret) {
json_delete(jret);
}
broadcasted = 0;
if(receivers > 0) {
char *json = json_stringify(bcqueue->jmessage, NULL);
/* Write the message to all receivers */
for(i=0;i<MAX_CLIENTS;i++) {
if(handshakes[i] == RECEIVER || handshakes[i] == NODE) {
socket_write(socket_clients[i], json);
broadcasted = 1;
}
}
logprintf(LOG_DEBUG, "broadcasted: %s", json);
sfree((void *)&json);
}
struct bcqueue_t *tmp = bcqueue;
sfree((void *)&bcqueue->protoname);
json_delete(bcqueue->jmessage);
bcqueue = bcqueue->next;
sfree((void *)&tmp);
bcqueue_number--;
pthread_mutex_unlock(&bcqueue_lock);
} else {
pthread_cond_wait(&bcqueue_signal, &bcqueue_lock);
}
}
return (void *)NULL;
}
void receiver_create_message(protocol_t *protocol) {
if(protocol->message) {
char *json = NULL;
char *valid = json_stringify(protocol->message, NULL);
json_delete(protocol->message);
if(valid && json_validate(valid) == true) {
JsonNode *jmessage = json_mkobject();
json_append_member(jmessage, "code", json_decode(valid));
json_append_member(jmessage, "origin", json_mkstring("receiver"));
json_append_member(jmessage, "protocol", json_mkstring(protocol->id));
if(protocol->repeats > -1) {
json_append_member(jmessage, "repeats", json_mknumber(protocol->repeats));
}
json = json_stringify(jmessage, NULL);
broadcast_queue(protocol->id, json_decode(json));
sfree((void *)&json);
json_delete(jmessage);
}
protocol->message = NULL;
sfree((void *)&valid);
}
}
void receiver_parse_code(int *rawcode, int rawlen, int plslen) {
struct protocol_t *protocol = NULL;
struct protocols_t *pnode = protocols;
struct protocol_plslen_t *plslengths = NULL;
int x = 0, match = 0;
while(pnode) {
protocol = pnode->listener;
match = 0;
if((((protocol->parseRaw || protocol->parseCode) && protocol->rawlen > 0)
|| protocol->parseBinary) && protocol->pulse > 0 && protocol->plslen) {
plslengths = protocol->plslen;
while(plslengths) {
if((plslen >= ((double)plslengths->length-5) && plslen <= ((double)plslengths->length+5))) {
match = 1;
break;
}
plslengths = plslengths->next;
}
if(rawlen == protocol->rawlen && match == 1) {
if(protocol->parseRaw) {
logprintf(LOG_DEBUG, "recevied pulse length of %d", plslen);
logprintf(LOG_DEBUG, "called %s parseRaw()", protocol->id);
protocol->parseRaw();
protocol->repeats = -1;
receiver_create_message(protocol);
struct protocol_conflicts_t *tmp_conflicts = protocol->conflicts;
while(tmp_conflicts) {
pnode = protocols;
while(pnode) {
struct protocol_t *proto = pnode->listener;
if(strcmp(proto->id, tmp_conflicts->id) == 0) {
for(x=0;x<(int)(double)rawlen;x++) {
proto->raw[x] = protocol->raw[x];
}
proto->repeats = protocol->repeats;
proto->parseRaw();
receiver_create_message(proto);
break;
}
pnode = pnode->next;
}
tmp_conflicts = tmp_conflicts->next;
}
break;
}
/* Convert the raw codes to one's and zero's */
for(x=0;x<(int)(double)rawlen;x++) {
protocol->pCode[x] = protocol->code[x];
memcpy(&protocol->raw[x], &rawcode[x], sizeof(int));
if(protocol->raw[x] >= ((protocol->pulse*plslengths->length)-plslengths->length)) {
protocol->code[x] = 1;
} else {
protocol->code[x] = 0;
}
/* Check if the current code matches the previous one */
if(protocol->pCode[x] != protocol->code[x]) {
protocol->repeats = 0;
protocol->first = 0;
protocol->second = 0;
}
}
gettimeofday(&tv, NULL);
if(protocol->first > 0) {
protocol->first = protocol->second;
}
protocol->second = 1000000 * (unsigned int)tv.tv_sec + (unsigned int)tv.tv_usec;
if(protocol->first == 0) {
protocol->first = protocol->second;
}
/* Reset # of repeats after a certain delay */
if(((int)protocol->second-(int)protocol->first) > 750000) {
protocol->repeats = 0;
}
protocol->repeats++;
/* Continue if we have recognized enough repeated codes */
if(protocol->repeats >= (receive_repeat*protocol->rxrpt)) {
if(protocol->parseCode) {
logprintf(LOG_DEBUG, "caught minimum # of repeats %d of %s", protocol->repeats, protocol->id);
logprintf(LOG_DEBUG, "called %s parseCode()", protocol->id);
protocol->parseCode();
receiver_create_message(protocol);
struct protocol_conflicts_t *tmp_conflicts = protocol->conflicts;
while(tmp_conflicts) {
pnode = protocols;
while(pnode) {
struct protocol_t *proto = pnode->listener;
if(strcmp(proto->id, tmp_conflicts->id) == 0) {
for(x=0;x<(int)(double)rawlen;x++) {
proto->code[x] = protocol->code[x];
}
proto->repeats = protocol->repeats;
proto->parseCode();
receiver_create_message(proto);
break;
}
pnode = pnode->next;
}
tmp_conflicts = tmp_conflicts->next;
}
break;
}
if(protocol->parseBinary) {
/* Convert the one's and zero's into binary */
for(x=0; x<(int)(double)rawlen; x+=4) {
if(protocol->code[x+protocol->lsb] == 1) {
protocol->binary[x/4] = 1;
} else {
protocol->binary[x/4] = 0;
}
}
if((double)protocol->raw[1]/((double)protocol->pulse*(double)plslengths->length) < 1.2) {
x -= 4;
}
/* Check if the binary matches the binary length */
if((protocol->binlen > 0 && ((x/4) == protocol->binlen)) || (protocol->binlen == 0 && ((x/4) == protocol->rawlen/4))) {
logprintf(LOG_DEBUG, "called %s parseBinary()", protocol->id);
protocol->parseBinary();
receiver_create_message(protocol);
struct protocol_conflicts_t *tmp_conflicts = protocol->conflicts;
while(tmp_conflicts) {
pnode = protocols;
while(pnode) {
struct protocol_t *proto = pnode->listener;
int z = 0;
if(strcmp(proto->id, tmp_conflicts->id) == 0) {
int binlen = 0;
if(protocol->binlen) {
binlen = protocol->binlen;
} else {
binlen = x/4;
}
for(z=0; z<=binlen; z++) {
proto->binary[z] = protocol->binary[z];
}
proto->repeats = protocol->repeats;
proto->parseBinary();
receiver_create_message(proto);
break;
}
pnode = pnode->next;
}
tmp_conflicts = tmp_conflicts->next;
}
break;
}
}
}
}
}
pnode = pnode->next;
}
}
void *send_code(void *param) {
int i = 0, x = 0;
pthread_mutex_lock(&sendqueue_lock);
while(main_loop) {
if(sendqueue_number > 0) {
pthread_mutex_lock(&sendqueue_lock);
sending = 1;
struct protocol_t *protocol = sendqueue->protopt;
JsonNode *message = NULL;
if(sendqueue->message) {
if(json_validate(sendqueue->message) == true) {
message = json_mkobject();
json_append_member(message, "origin", json_mkstring("sender"));
json_append_member(message, "protocol", json_mkstring(protocol->id));
json_append_member(message, "code", json_decode(sendqueue->message));
json_append_member(message, "repeat", json_mknumber(1));
}
}
/* Create a single code with all repeats included */
int code_len = (protocol->rawlen*send_repeat*protocol->txrpt)+1;
size_t send_len = (size_t)(code_len * (int)sizeof(int));
int longCode[code_len];
memset(longCode, 0, send_len);
for(i=0;i<(send_repeat*protocol->txrpt);i++) {
for(x=0;x<protocol->rawlen;x++) {
longCode[x+(protocol->rawlen*i)]=sendqueue->code[x];
}
}
longCode[code_len] = 0;
if(hardware->send) {
if(hardware->send(longCode) == 0) {
logprintf(LOG_DEBUG, "successfully send %s code", protocol->id);
if(strcmp(protocol->id, "raw") == 0) {
int plslen = protocol->raw[protocol->rawlen-1]/PULSE_DIV;
receiver_parse_code(protocol->raw, protocol->rawlen, plslen);
}
} else {
logprintf(LOG_ERR, "failed to send code");
}
} else {
if(strcmp(protocol->id, "raw") == 0) {
int plslen = protocol->raw[protocol->rawlen-1]/PULSE_DIV;
receiver_parse_code(protocol->raw, protocol->rawlen, plslen);
}
}
if(message) {
broadcast_queue(sendqueue->protoname, message);
json_delete(message);
}
struct sendqueue_t *tmp = sendqueue;
if(tmp->message) {
sfree((void *)&tmp->message);
}
sfree((void *)&tmp->protoname);
sendqueue = sendqueue->next;
sfree((void *)&tmp);
sendqueue_number--;
pthread_mutex_unlock(&sendqueue_lock);
} else {
sending = 0;
pthread_cond_wait(&sendqueue_signal, &sendqueue_lock);
}
}
return (void *)NULL;
}
/* Send a specific code */
void send_queue(JsonNode *json) {
int match = 0, x = 0;
struct timeval tcurrent;
/* Hold the final protocol struct */
struct protocol_t *protocol = NULL;
JsonNode *jcode = NULL;
JsonNode *jsettings = NULL;
JsonNode *jprotocols = NULL;
JsonNode *jprotocol = NULL;
if(!(jcode = json_find_member(json, "code"))) {
logprintf(LOG_ERR, "sender did not send any codes");
json_delete(jcode);
} else if(!(jprotocols = json_find_member(jcode, "protocol"))) {
logprintf(LOG_ERR, "sender did not provide a protocol name");
json_delete(jcode);
} else {
/* If we matched a protocol and are not already sending, continue */
if(send_repeat > 0) {
jprotocol = json_first_child(jprotocols);
while(jprotocol) {
match = 0;
if(jprotocol->tag == JSON_STRING) {
struct protocols_t *pnode = protocols;
/* Retrieve the used protocol */
while(pnode) {
protocol = pnode->listener;
/* Check if the protocol exists */
if(protocol_device_exists(protocol, jprotocol->string_) == 0 && match == 0) {
match = 1;
break;
}
pnode = pnode->next;
}
}
if(match == 1 && protocol->createCode) {
/* Temporary alter the protocol specific settings */
if((jsettings = json_find_member(jcode, "settings"))) {
JsonNode *jchild = NULL;
if((jchild = json_first_child(jsettings))) {
while(jchild) {
if(jchild->tag == JSON_NUMBER) {
if(protocol_setting_check_number(protocol, jchild->key, (int)jchild->number_) == 0) {
protocol_setting_update_number(protocol, jchild->key, (int)jchild->number_);
}
} else if(jchild->tag == JSON_STRING) {
if(protocol_setting_check_string(protocol, jchild->key, jchild->string_) == 0) {
protocol_setting_update_string(protocol, jchild->key, jchild->string_);
}
}
jchild = jchild->next;
}
json_delete(jchild);
}
}
/* Let the protocol create his code */
if(protocol->createCode(jcode) == 0) {
pthread_mutex_lock(&sendqueue_lock);
struct sendqueue_t *mnode = malloc(sizeof(struct sendqueue_t));
gettimeofday(&tcurrent, NULL);
mnode->id = 1000000 * (unsigned int)tcurrent.tv_sec + (unsigned int)tcurrent.tv_usec;
mnode->message = NULL;
if(protocol->message) {
char *jsonstr = json_stringify(protocol->message, NULL);
json_delete(protocol->message);
if(json_validate(jsonstr) == true) {
mnode->message = malloc(strlen(jsonstr)+1);
strcpy(mnode->message, jsonstr);
}
sfree((void *)&jsonstr);
protocol->message = NULL;
}
for(x=0;x<protocol->rawlen;x++) {
mnode->code[x]=protocol->raw[x];
}
mnode->protoname = malloc(strlen(protocol->id)+1);
strcpy(mnode->protoname, protocol->id);
mnode->protopt = protocol;
if(sendqueue_number == 0) {
sendqueue = mnode;
sendqueue_head = mnode;
} else {
sendqueue_head->next = mnode;
sendqueue_head = mnode;
}
sendqueue_number++;
pthread_mutex_unlock(&sendqueue_lock);
pthread_cond_signal(&sendqueue_signal);
}
/* Restore the protocol specific settings to their default values */
if((jsettings = json_find_member(jcode, "settings"))) {
JsonNode *jchild = NULL;
if((jchild = json_first_child(jsettings))) {
while(jchild) {
if(jchild->tag == JSON_NUMBER) {
if(protocol_setting_check_number(protocol, jchild->key, (int)jchild->number_) == 0) {
protocol_setting_restore(protocol, jchild->key);
}
} else if(jchild->tag == JSON_STRING) {
if(protocol_setting_check_string(protocol, jchild->key, jchild->string_) == 0) {
protocol_setting_restore(protocol, jchild->key);
}
}
jchild = jchild->next;
}
json_delete(jchild);
}
}
}
jprotocol = jprotocol->next;
}
}
if(jcode) {
json_delete(jcode);
}
}
}
void client_sender_parse_code(int i, JsonNode *json) {
int sd = socket_clients[i];
if(incognito_mode == 0 && handshakes[i] != NODE) {
/* Don't let the sender wait until we have send the code */
socket_close(sd);
handshakes[i] = -1;
}
send_queue(json);
}
void control_device(struct conf_devices_t *dev, char *state, JsonNode *values) {
struct conf_settings_t *sett = NULL;
struct conf_values_t *val = NULL;
struct options_t *opt = NULL;
struct protocols_t *tmp_protocols = NULL;
unsigned short has_settings = 0;
char *ctmp = NULL;
JsonNode *code = json_mkobject();
JsonNode *json = json_mkobject();
JsonNode *jsettings = json_mkobject();
JsonNode *jprotocols = json_mkarray();
/* Check all protocol options */
tmp_protocols = dev->protocols;
while(tmp_protocols) {
json_append_element(jprotocols, json_mkstring(tmp_protocols->name));
if((opt = tmp_protocols->listener->options)) {
while(opt) {
sett = dev->settings;
while(sett) {
/* Retrieve the device id's */
if(strcmp(sett->name, "id") == 0) {
val = sett->values;
while(val) {
if(opt->conftype == config_id && strcmp(val->name, opt->name) == 0 && json_find_string(code, val->name, &ctmp) != 0) {
json_append_member(code, val->name, json_mkstring(val->value));
}
val = val->next;
}
}
/* Retrieve the protocol specific settings */
if(strcmp(sett->name, "settings") == 0 && !has_settings) {
has_settings = 1;
val = sett->values;
while(val) {
if(val->type == CONFIG_TYPE_NUMBER) {
json_append_member(jsettings, val->name, json_mknumber(atoi(val->value)));
} else if(val->type == CONFIG_TYPE_STRING) {
json_append_member(jsettings, val->name, json_mkstring(val->value));
}
val = val->next;
}
}
sett = sett->next;
}
opt = opt->next;
}
while(values) {
opt = tmp_protocols->listener->options;
while(opt) {
if(opt->conftype == config_value && strcmp(values->key, opt->name) == 0) {
if(values->tag == JSON_STRING) {
json_append_member(code, values->key, json_mkstring(values->string_));
} else if(values->tag == JSON_NUMBER) {
ctmp = realloc(ctmp, sizeof(int));
sprintf(ctmp, "%d", (int)values->number_);
json_append_member(code, values->key, json_mkstring(ctmp));
sfree((void *)&ctmp);
}
}
opt = opt->next;
}
values = values->next;
}
}
/* Send the new device state */
if((opt = tmp_protocols->listener->options)) {
while(opt) {
if(json_find_member(code, opt->name) == NULL) {
if(opt->conftype == config_state && opt->argtype == no_value && strcmp(opt->name, state) == 0) {
json_append_member(code, opt->name, json_mkstring("1"));
break;
} else if(opt->conftype == config_state && opt->argtype == has_value) {
json_append_member(code, opt->name, json_mkstring(state));
break;
}
}
opt = opt->next;
}
}
tmp_protocols = tmp_protocols->next;
}
/* Construct the right json object */
json_append_member(code, "protocol", jprotocols);
json_append_member(json, "message", json_mkstring("send"));
json_append_member(json, "code", code);
json_append_member(code, "settings", jsettings);
send_queue(json);
json_delete(json);
}
void client_node_parse_code(int i, JsonNode *json) {
int sd = socket_clients[i];
char *message = NULL;
if(json_find_string(json, "message", &message) == 0) {
/* Send the config file to the controller */
if(strcmp(message, "request config") == 0) {
struct JsonNode *jsend = config_broadcast_create();
char *output = json_stringify(jsend, NULL);
socket_write_big(sd, output);
sfree((void *)&output);
json_delete(jsend);
}
}
}
void client_controller_parse_code(int i, JsonNode *json) {
int sd = socket_clients[i];
char *message = NULL;
char *location = NULL;
char *device = NULL;
char *tmp = NULL;
struct conf_locations_t *slocation;
struct conf_devices_t *sdevice;
JsonNode *code = NULL;
JsonNode *values = NULL;
if(json_find_string(json, "message", &message) == 0) {
/* Send the config file to the controller */
if(strcmp(message, "request config") == 0) {
struct JsonNode *jsend = config_broadcast_create();
char *output = json_stringify(jsend, NULL);
socket_write_big(sd, output);
sfree((void *)&output);
json_delete(jsend);
/* Control a specific device */
} else if(strcmp(message, "send") == 0) {
/* Check if got a code */
if(!(code = json_find_member(json, "code"))) {
logprintf(LOG_ERR, "controller did not send any codes");
} else {
/* Check if a location and device are given */
if(json_find_string(code, "location", &location) != 0) {
logprintf(LOG_ERR, "controller did not send a location");
} else if(json_find_string(code, "device", &device) != 0) {
logprintf(LOG_ERR, "controller did not send a device");
/* Check if the device and location exists in the config file */
} else if(config_get_location(location, &slocation) == 0) {
if(config_get_device(location, device, &sdevice) == 0) {
char *state = malloc(4);
if(json_find_string(code, "state", &tmp) == 0) {
state = realloc(state, strlen(tmp)+1);
strcpy(state, tmp);
} else {
state = realloc(state, 4);
memset(state, '\0', 4);
}
/* Send the device code */
values = json_find_member(code, "values");
if(values) {
values = json_first_child(values);
}
control_device(sdevice, state, values);
sfree((void *)&state);
} else {
logprintf(LOG_ERR, "the device \"%s\" does not exist", device);
}
} else {
logprintf(LOG_ERR, "the location \"%s\" does not exist", location);
}
if(incognito_mode == 0 && handshakes[i] != GUI && handshakes[i] != NODE) {
socket_close(sd);
handshakes[i] = -1;
}
}
}
}
}
#ifdef WEBSERVER
void client_webserver_parse_code(int i, char buffer[BUFFER_SIZE]) {
int sd = socket_clients[i];
int x = 0;
FILE *f;
char *ptr = NULL;;
char *cache = NULL;
char *path = NULL;
struct sockaddr_in sockin;
socklen_t len = sizeof(sockin);
if(getsockname(sd, (struct sockaddr *)&sockin, &len) == -1) {
logprintf(LOG_ERR, "could not determine server ip address");
} else {
ptr = malloc(4);
ptr = strstr(buffer, " HTTP/");
*ptr = 0;
ptr = NULL;
if(strncmp(buffer, "GET ", 4) == 0) {
ptr = buffer + 4;
}
if(strcmp(ptr, "/logo.png") == 0) {
if(ptr == buffer + 4) {
socket_write(sd, "HTTP/1.1 200 OK\r");
socket_write(sd, "Content-Type: image/png\r");
socket_write(sd, "Server : pilight\r");
socket_write(sd, "\r");
path = malloc(strlen(webserver_root)+strlen("logo.png")+1);
sprintf(path, "%s/logo.png", webserver_root);
printf("%s\n", path);
f = fopen(path, "rb");
if(f) {
x = 0;
cache = malloc(BUFFER_SIZE);
while(!feof(f)) {
x = (int)fread(cache, 1, BUFFER_SIZE, f);
send(sd, cache, (size_t)x, MSG_NOSIGNAL);
}
fclose(f);
sfree((void *)&cache);
sfree((void *)&path);
} else {
logprintf(LOG_NOTICE, "pilight logo not found");
}
}
} else {
/* Catch all webserver page to inform users on which port the webserver runs */
socket_write(sd, "HTTP/1.1 200 OK\r");
socket_write(sd, "Server : pilight\r");
socket_write(sd, "\r");
socket_write(sd, "<html><head><title>pilight daemon</title></head>\r");
cache = malloc(BUFFER_SIZE);
if(webserver_enable == 1) {
sprintf(cache, "<body><center><img src=\"logo.png\"><br /><p style=\"color: #0099ff; font-weight: 800px; font-family: Verdana; font-size: 20px;\">The pilight webgui is located at <a style=\"text-decoration: none; color: #0099ff; font-weight: 800px; font-family: Verdana; font-size: 20px;\" href=\"http://%s:%d\">http://%s:%d</a></p></center></body></html>\r", inet_ntoa(sockin.sin_addr), webserver_port, inet_ntoa(sockin.sin_addr), webserver_port);
socket_write(sd, cache);
} else {
socket_write(sd, "<body><center><img src=\"logo.png\"></center></body></html>\r");
}
sfree((void *)&cache);
}
}
}
#endif
/* Parse the incoming buffer from the client */
void socket_parse_data(int i, char buffer[BUFFER_SIZE]) {
int sd = socket_clients[i];
struct sockaddr_in address;
int addrlen = sizeof(address);
char *message;
char *incognito;
JsonNode *json = NULL;
short x = 0;
getpeername(sd, (struct sockaddr*)&address, (socklen_t*)&addrlen);
if(strcmp(buffer, "HEART") != 0) {
logprintf(LOG_DEBUG, "socket recv: %s", buffer);
}
if(strcmp(buffer, "HEART") == 0) {
socket_write(sd, "BEAT");
} else {
/* Serve static webserver page. This is the only request that's is
expected not to be a json object */
#ifdef WEBSERVER
if(strstr(buffer, " HTTP/")) {
logprintf(LOG_INFO, "client recognized as web");
handshakes[i] = WEB;
client_webserver_parse_code(i, buffer);
socket_close(sd);
} else if(json_validate(buffer) == true) {
#else
if(json_validate(buffer) == true) {
#endif
json = json_decode(buffer);
/* The incognito mode is used by the daemon to emulate certain clients.
Temporary change the client type from the node mode to the emulated
client mode. */
if(json_find_string(json, "incognito", &incognito) == 0) {
incognito_mode = 1;
for(x=0;x<(sizeof(clients)/sizeof(clients[0]));x++) {
if(strcmp(clients[x], incognito) == 0) {
handshakes[i] = x;
break;
}
}
} else if(json_find_string(json, "message", &message) == 0) {
if(handshakes[i] != NODE && handshakes[i] != RECEIVER && handshakes[i] > -1) {
if(runmode == 2 && sockfd > 0 && strcmp(message, "request config") != 0) {
socket_write(sockfd, "{\"incognito\":\"%s\"}", clients[handshakes[i]]);
socket_write(sockfd, buffer);
}
}
if(handshakes[i] == NODE) {
client_node_parse_code(i, json);
} else if(handshakes[i] == SENDER) {
client_sender_parse_code(i, json);
} else if(handshakes[i] == CONTROLLER || handshakes[i] == GUI) {
client_controller_parse_code(i, json);
} else {
/* Check if we matched a know client type */
for(x=0;x<(sizeof(clients)/sizeof(clients[0]));x++) {
char *tmp = malloc(8+strlen(clients[x]));
sprintf(tmp, "client %s", clients[x]);
tmp[7+strlen(clients[x])] = '\0';
if(strcmp(message, tmp) == 0) {
socket_write(sd, "{\"message\":\"accept client\"}");
logprintf(LOG_INFO, "client recognized as %s", clients[x]);
handshakes[i] = x;
if(handshakes[i] == RECEIVER || handshakes[i] == GUI || handshakes[i] == NODE)
receivers++;
sfree((void *)&tmp);
break;
}
sfree((void *)&tmp);
}
}
/* Directly after using the incognito mode, restore the node mode */
if(incognito_mode == 1) {
for(x=0;x<(sizeof(clients)/sizeof(clients[0]));x++) {
if(strcmp(clients[x], "node") == 0) {
handshakes[i] = x;
break;
}
}
incognito_mode = 0;
}
}
if(handshakes[i] == -1 && socket_clients[i] > 0) {
socket_write(sd, "{\"message\":\"reject client\"}");
socket_close(sd);
}
}
}
if(json) {
json_delete(json);
}
}
void socket_client_disconnected(int i) {
if(handshakes[i] == RECEIVER || handshakes[i] == GUI || handshakes[i] == NODE)
receivers--;
handshakes[i] = 0;