add daemon plugin

This commit is contained in:
lxsang 2016-03-04 11:38:08 +01:00
parent 8e02096886
commit 78f1e67864
19 changed files with 228 additions and 32 deletions

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@ -12,9 +12,9 @@ ifeq ($(UNAME_S),Darwin)
endif
#-lsocket
PLUGINS= dummy.$(EXT) fileman.$(EXT) pluginsman.$(EXT) wterm.$(EXT)
PLUGINS= dummy.$(EXT) fileman.$(EXT) pluginsman.$(EXT) wterm.$(EXT) nodedaemon.$(EXT)
PLUGINSDEP = plugins/plugin.o plugins/dbhelper.o plugins/dictionary.o plugins/utils.o plugins/list.o
PLUGINSDEP = plugins/ini.o plugins/plugin.o plugins/dbhelper.o plugins/dictionary.o plugins/utils.o plugins/list.o
PLUGINLIBS = -lsqlite3
main: httpd plugins
@ -40,7 +40,7 @@ clean: sclean pclean
sclean:
rm -f *.o build/httpd
pclean:
rm -f $(BUILDIRD)/plugins/* plugins/*.o
rm -rf $(BUILDIRD)/plugins/* plugins/*.o
-for file in plugins/* ;do \
if [ -d "$$file" ]; then \
rm "$$file"/*.o; \

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build/.DS_Store vendored

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@ -5,3 +5,9 @@ plugins_ext=.dylib ; plugins extensions
database=/Users/mrsang/Google Drive/ushare/cwp/ant-http/build/databases/
htdocs=/Users/mrsang/Google Drive/ushare/cwp/ant-http/build/htdocs
tmpdir=/Users/mrsang/Google Drive/ushare/cwp/ant-http/build/tmp/
; This enable some plugins to be initialised at server startup
[AUTOSTART]
plugin = nodedaemon
;plugin=ffvm
;plugin=dummy

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build/plugins/nodedaemon.dylib Executable file

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@ -9,7 +9,7 @@ static int config_handler(void* conf, const char* section, const char* name,
const char* value)
{
config_t* pconfig = (config_t*)conf;
char * ppath = NULL;
if (MATCH("SERVER", "port")) {
pconfig->port = atoi(value);
} else if (MATCH("SERVER", "plugins")) {
@ -22,6 +22,10 @@ static int config_handler(void* conf, const char* section, const char* name,
pconfig->htdocs = strdup(value);
} else if(MATCH("SERVER", "tmpdir")) {
pconfig->tmpdir = strdup(value);
}else if(strcmp(section,"AUTOSTART")==0){
// The server section must be added before the autostart section
// auto start plugin
plugin_load(value);
} else {
return 0; /* unknown section/name, error */
}

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@ -391,7 +391,7 @@ void * plugin_from_file(char* name)
void *lib_handle;
char* error;
char* path = __s("%s%s%s",server_config.plugins_dir,name,server_config.plugins_ext);
void (*fn)(const char*,const char*,const char*,const char*);
void (*fn)(const char*,const char*,const char*,const char*,int);
lib_handle = dlopen(path, RTLD_LAZY);
if (!lib_handle)
{
@ -399,32 +399,20 @@ void * plugin_from_file(char* name)
return NULL;
}
// set database path
fn = (void (*)(const char *, const char *, const char *, const char *))dlsym(lib_handle, "__init_plugin__");
fn = (void (*)(const char *, const char *, const char *, const char *,int))dlsym(lib_handle, "__init_plugin__");
if ((error = dlerror()) != NULL)
LOG("Problem when setting data path for %s : %s \n", name,error);
else
(*fn)(name,server_config.db_path, server_config.htdocs,server_config.plugins_dir);
(*fn)(name,server_config.db_path, server_config.htdocs,server_config.plugins_dir,server_config.port);
free(path);
return lib_handle;
}
/**
* Unload all the plugin loaded on the plugin table
*/
void unload_all_plugin()
void unload_plugin(struct plugin_entry* np)
{
LOG("Unload all plugins\n");
void (*fn)();
char* error;
for(int i=0;i<HASHSIZE;i++)
{
struct plugin_entry *np;
for (np = plugin_table[i]; np != NULL; np = np->next)
{
// execute the exit function if exists
// load the function
void (*fn)() = NULL;
// find and execute the exit function
fn = (void (*)())dlsym(np->handle, "pexit");
if ((error = dlerror()) != NULL)
{
@ -439,6 +427,43 @@ void unload_all_plugin()
//free((void *) np->handle);
free((void *) np->pname);
}
/*
Unload a plugin by its name
*/
void unload_plugin_by_name(const char* name)
{
LOG("%s\n","Unloading thing");
struct plugin_entry *np;
int hasval = hash(name, HASHSIZE);
np = plugin_table[hasval];
if(strcmp(np->pname,name) == 0)
{
unload_plugin(np);
plugin_table[hasval] = np->next;
}
else
{
for (np; np != NULL; np = np->next)
if (np->next != NULL && strcmp(name, np->next->pname) == 0)
break;
if(np == NULL) return; // the plugin is is not loaded
unload_plugin(np->next);
np->next = np->next->next;
}
}
/**
* Unload all the plugin loaded on the plugin table
*/
void unload_all_plugin()
{
LOG("Unload all plugins\n");
for(int i=0;i<HASHSIZE;i++)
{
struct plugin_entry *np;
for (np = plugin_table[i]; np != NULL; np = np->next)
{
unload_plugin(np);
}
plugin_table[i] = NULL;
}
exit(0);

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@ -18,6 +18,8 @@ struct plugin_entry *plugin_lookup(char *s);
/* install: put (name, defn) in hashtab */
struct plugin_entry *plugin_load(char *name);
void unload_all_plugin();
void unload_plugin(struct plugin_entry*);
void unload_plugin_by_name(const char*);
void * plugin_from_file(char* name);
char* post_url_decode(int client,int len);
dictionary decode_url_request(const char* query);

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@ -15,7 +15,10 @@ void init()
dbquery(db,sql,NULL);
printf("Finish init\n");
}
void pexit()
{
LOG("%s\n","Plugin DUMMY is exited");
}
void execute(int client,const char* method,dictionary rq)
{
@ -50,7 +53,6 @@ void execute(int client,const char* method,dictionary rq)
__t(client, "],\"total\":%d}",records->idx);
free(records);
//__t(client, query);
}
// delete record

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@ -0,0 +1,145 @@
// network support
#include <netinet/in.h>
#include <ifaddrs.h>
#include <arpa/inet.h>
#include <pthread.h>
#include <errno.h>
#include <sys/socket.h>
#include <time.h>
#include <resolv.h>
#include "../plugin.h"
#define RQ
#define REQUEST_PATTERN "POST /node_register HTTP/1.0\r\nHost: antd\r\nUser-Agent: antd\r\nContent-Type: application/json\r\nContent-Length: %d\r\n\r\n%s"
#define JSON_MSG "{\"ip\":\"%s\",\"port\":\"%d\"}"
void init();
struct master_conf_t{
int port;
char* ip;
} ;
struct master_conf_t mconfig;
call __init__ = init;
int request_socket(const char* ip, int port)
{
int sockfd = -1;
struct sockaddr_in dest;
char* request;
// time out setting
struct timeval timeout;
timeout.tv_sec = 3;
timeout.tv_usec = 0;
if ( (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0 )
{
perror("Socket");
return -1;
}
if (setsockopt (sockfd, SOL_SOCKET, SO_RCVTIMEO, &timeout,sizeof(timeout)) < 0)
perror("setsockopt failed\n");
//if (setsockopt (sockfd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,sizeof(timeout)) < 0)
// perror("setsockopt failed\n");
bzero(&dest, sizeof(dest));
dest.sin_family = AF_INET;
dest.sin_port = htons(port);
if ( inet_aton(ip, &dest.sin_addr.s_addr) == 0 )
{
perror(ip);
close(sockfd);
return -1;
}
if ( connect(sockfd, (struct sockaddr*)&dest, sizeof(dest)) != 0 )
{
close(sockfd);
//perror("Connect");
return -1;
}
return sockfd;
}
char* get_ip_address()
{
struct ifaddrs* addrs;
getifaddrs(&addrs);
struct ifaddrs* tmp = addrs;
char* ip;
while (tmp)
{
if (tmp->ifa_addr && tmp->ifa_addr->sa_family == AF_INET)
{
struct sockaddr_in *pAddr = (struct sockaddr_in *)tmp->ifa_addr;
ip = inet_ntoa(pAddr->sin_addr);
if(strcmp(ip,"127.0.0.1") != 0)
return ip;
}
tmp = tmp->ifa_next;
}
freeifaddrs(addrs);
return "127.0.0.1";
}
int inform_master()
{
int sockfd;
//rpc_response_t* rdata = NULL;
char* request;
char* data = __s(JSON_MSG,get_ip_address(),__plugin__.sport);
while((sockfd = request_socket(mconfig.ip, mconfig.port)) == -1)
{
// wait for 3s and then request to server
usleep(3000000);
}
request = __s(REQUEST_PATTERN, strlen(data), data);
send(sockfd,request, strlen(request),0);
//rdata = parse_response(sockfd);
close(sockfd);
LOG("%s","OK, master registered \n");
free(request);
return 0;
}
static int config_handler(void* conf, const char* section, const char* name,
const char* value)
{
struct master_conf_t* pconfig = (struct master_conf_t*)conf;
char * ppath = NULL;
if (strcmp(name, "port") == 0) {
pconfig->port = atoi(value);
} else if (strcmp(name, "ip") == 0) {
pconfig->ip = strdup(value);
} else {
return 0;
}
return 1;
}
void read_config()
{
mconfig.ip = "127.0.0.1";
mconfig.port = 8080;
char* file = __s("%s%s%s.ini",config_dir(), DIR_SEP, __plugin__.name);
if (ini_parse(file, config_handler, &mconfig) < 0) {
LOG("Can't load '%s'\n. Used defaut configuration", file);
}
printf("%s %d\n",mconfig.ip, mconfig.port );
}
void init()
{
read_config();
pthread_t newthread;
if (pthread_create(&newthread , NULL,(void(*)()) inform_master, NULL) != 0)
perror("pthread_create: cannot create daemon for finding master");
else
{
//reclaim the stack data when thread finish
pthread_detach(newthread) ;
}
}
void pexit()
{
LOG("%s","EXIT daemon");
}
void execute(int c, const char* m, dictionary d)
{
text(c);
__t(c,"This is a system plugin. It cant be acessed from the web");
}

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@ -1,16 +1,18 @@
#include "plugin.h"
plugin_header __plugin__;
call __init__;
// private function
call __init__;
void __init_plugin__(const char* pl,const char*ph,const char* htdocs, const char* pdir){
void __init_plugin__(const char* pl,const char*ph,const char* htdocs, const char* pdir,int port){
__plugin__.name = strdup(pl);
__plugin__.dbpath= strdup(ph);
__plugin__.htdocs = strdup(htdocs);
__plugin__.pdir = strdup(pdir);
__plugin__.sport = port;
if(__init__ != NULL) __init__();
};
#ifdef USE_DB
sqldb getdb()
{
@ -241,3 +243,11 @@ void set_cookie(int client,dictionary dic)
}
response(client,"");
}
char* config_dir()
{
struct stat st;
char* path = __s("%s%s%s", __plugin__.pdir,DIR_SEP, __plugin__.name);
if (stat(path, &st) == -1)
mkdir(path, 0755);
return path;
}

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@ -22,6 +22,7 @@ typedef struct {
char *dbpath;
char * htdocs;
char*pdir;
int *sport;
} plugin_header;
@ -49,6 +50,7 @@ int __b(int, const unsigned char*, int);
int __f(int, const char*);
int __fb(int, const char*);
int upload(const char*, const char*);
char* config_dir();
char* route(const char*);
char* htdocs(const char*);
#ifdef USE_DB

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