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luna_methods.c
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luna_methods.c
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/*=============================================================================
Copyright (C) 2009 Ryan Hope <rmh3093@gmail.com>
Copyright (C) 2010 WebOS Internals <support@webos-internals.org>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
=============================================================================*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <json.h>
#include "luna_service.h"
#include "luna_methods.h"
#define ALLOWED_CHARS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-"
bool dummy_method(LSHandle* lshandle, LSMessage *message, void *ctx) {
bool returnVal = true;
LSError lserror;
LSErrorInit(&lserror);
char *jsonResponse = 0;
int len = 0;
len = asprintf(&jsonResponse, "{\"returnValue\":true}", VERSION);
if (jsonResponse) {
LSMessageReply(lshandle, message, jsonResponse, &lserror);
free(jsonResponse);
} else
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Generic error\"}", &lserror);
LSErrorFree(&lserror);
return returnVal;
}
bool version_method(LSHandle* lshandle, LSMessage *message, void *ctx) {
bool returnVal = true;
char line[MAXLINELEN];
// %%% MAGIC NUMBER ALERT %%%
char version[16];
LSError lserror;
LSErrorInit(&lserror);
char *jsonResponse = 0;
int len = 0;
FILE *fp = popen("/sbin/initctl version", "r");
if (fp) {
while ( fgets( line, sizeof line, fp)) {
// %%% MAGIC NUMBER ALERT %%%
if (sscanf(line, "init (upstart %15s)\n", (char*)&version) == 1) {
len = asprintf(&jsonResponse, "{\"returnValue\":true,\"version\":\"%s\"}", version);
}
}
// %%% IGNORING RETURN ALERT %%%
pclose(fp);
}
if (jsonResponse) {
LSMessageReply(lshandle, message, jsonResponse, &lserror);
free(jsonResponse);
} else
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Generic error\"}", &lserror);
LSErrorFree(&lserror);
return returnVal;
}
bool list_method(LSHandle* lshandle, LSMessage *message, void *ctx) {
bool returnVal = true;
char line[MAXLINELEN];
// %%% MAGIC NUMBERS ALERT %%%
char name[128];
char state[16];
char status[128];
LSError lserror;
LSErrorInit(&lserror);
char *jsonResponse = 0;
int len = 0;
json_t *response = json_new_object();
FILE *fp = popen("/sbin/initctl list", "r");
if (fp) {
json_t *array = json_new_array();
while ( fgets( line, sizeof line, fp)) {
// %%% MAGIC NUMBERS ALERT %%%
if (sscanf(line, "%127s (start) %127c",
(char*)&name, (char *)&status) == 2) {
// %%% HACK ALERT %%%
*strchr(status,'\n') = 0;
json_t *object = json_new_object();
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(object, "name", json_new_string(name));
json_insert_pair_into_object(object, "state", json_new_string("start"));
json_insert_pair_into_object(object, "status", json_new_string(status));
json_insert_child(array, object);
}
// %%% MAGIC NUMBERS ALERT %%%
else if (sscanf(line, "%127s (stop) %127c",
(char*)&name, (char *)&status) == 2) {
// %%% HACK ALERT %%%
*strchr(status,'\n') = 0;
json_t *object = json_new_object();
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(object, "name", json_new_string(name));
json_insert_pair_into_object(object, "state", json_new_string("stop"));
json_insert_pair_into_object(object, "status", json_new_string(status));
json_insert_child(array, object);
}
}
if (!pclose(fp)) {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "returnValue", json_new_true());
json_insert_pair_into_object(response, "jobs", array);
json_tree_to_string(response, &jsonResponse);
}
}
if (jsonResponse) {
LSMessageReply(lshandle, message, jsonResponse, &lserror);
free(jsonResponse);
} else
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Generic error\"}", &lserror);
json_free_value(&response);
LSErrorFree(&lserror);
return returnVal;
}
bool start_method(LSHandle* lshandle, LSMessage *message, void *ctx) {
bool returnVal = true;
char line[MAXLINELEN];
// %%% MAGIC NUMBERS ALERT %%%
char name[128];
char status[128];
LSError lserror;
LSErrorInit(&lserror);
char *jsonResponse = 0;
int len = 0;
json_t *object = json_parse_document(LSMessageGetPayload(message));
json_t *id = json_find_first_label(object, "id");
if (strspn(id->child->text, ALLOWED_CHARS) != strlen(id->child->text)) {
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Invalid id\"}", &lserror);
LSErrorFree(&lserror);
return true;
}
// %%% MAGIC NUMBERS ALERT %%%
char command[128];
char format[128];
// %%% IGNORING RETURN ALERT %%%
sprintf((char *)&command, "/sbin/initctl start %s 2>&1", id->child->text);
json_t *response = json_new_object();
FILE *fp = popen(command, "r");
if (fp) {
while ( fgets( line, sizeof line, fp)) {
if (sscanf(line, "(%*d/%*d) Job not changed: %127s\n", (char *)&name) == 1) {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "status", json_new_string("Job not changed"));
}
else if (sscanf(line, "(%*d/%*d) %s %127c\n", (char *)&name, (char *)&status) == 2) {
// %%% HACK ALERT %%%
*strchr(status,'\n') = 0;
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "status", json_new_string(status));
}
}
if (!pclose(fp)) {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "returnValue", json_new_true());
}
else {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "returnValue", json_new_false());
}
json_tree_to_string(response, &jsonResponse);
}
if (jsonResponse) {
LSMessageReply(lshandle, message, jsonResponse, &lserror);
free(jsonResponse);
} else
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Generic error\"}", &lserror);
json_free_value(&response);
LSErrorFree(&lserror);
return returnVal;
}
bool stop_method(LSHandle* lshandle, LSMessage *message, void *ctx) {
bool returnVal = true;
char line[MAXLINELEN];
// %%% MAGIC NUMBERS ALERT %%%
char name[128];
char status[128];
LSError lserror;
LSErrorInit(&lserror);
char *jsonResponse = 0;
int len = 0;
json_t *object = json_parse_document(LSMessageGetPayload(message));
json_t *id = json_find_first_label(object, "id");
if (strspn(id->child->text, ALLOWED_CHARS) != strlen(id->child->text)) {
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Invalid id\"}", &lserror);
LSErrorFree(&lserror);
return true;
}
// %%% MAGIC NUMBERS ALERT %%%
char command[128];
char format[128];
// %%% IGNORING RETURN ALERT %%%
sprintf((char *)&command, "/sbin/initctl stop %s 2>&1", id->child->text);
json_t *response = json_new_object();
FILE *fp = popen(command, "r");
if (fp) {
while ( fgets( line, sizeof line, fp)) {
if (sscanf(line, "(%*d/%*d) Job not changed: %127s\n", (char *)&name) == 1) {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "status", json_new_string("Job not changed"));
}
else if (sscanf(line, "(%*d/%*d) %s %127c\n", (char *)&name, (char *)&status) == 2) {
// %%% HACK ALERT %%%
*strchr(status,'\n') = 0;
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "status", json_new_string(status));
}
}
if (!pclose(fp)) {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "returnValue", json_new_true());
}
else {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "returnValue", json_new_false());
}
json_tree_to_string(response, &jsonResponse);
}
if (jsonResponse) {
LSMessageReply(lshandle, message, jsonResponse, &lserror);
free(jsonResponse);
} else
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Generic error\"}", &lserror);
json_free_value(&response);
LSErrorFree(&lserror);
return returnVal;
}
bool jps_method(LSHandle* lshandle, LSMessage *message, void *ctx) {
bool returnVal = true;
char line[MAXLINELEN];
// %%% MAGIC NUMBERS ALERT %%%
char name[128];
LSError lserror;
LSErrorInit(&lserror);
char *jsonResponse = 0;
int len = 0;
json_t *response = json_new_object();
FILE *fp = popen("/usr/bin/jps", "r");
if (fp) {
json_t *array = json_new_array();
// Skip the first line
(void)fgets( line, sizeof line, fp);
while ( fgets( line, sizeof line, fp)) {
if (sscanf(line, "%*d %*d %*d %*d %*d %*d %*d %127c",
(char*)&name) == 1) {
// %%% HACK ALERT %%%
*strchr(name,'\n') = 0;
json_t *object = json_new_object();
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(object, "name", json_new_string(name));
json_insert_child(array, object);
}
}
if (!pclose(fp)) {
// %%% IGNORING RETURN ALERT %%%
json_insert_pair_into_object(response, "returnValue", json_new_true());
json_insert_pair_into_object(response, "threads", array);
json_tree_to_string(response, &jsonResponse);
}
}
if (jsonResponse) {
LSMessageReply(lshandle, message, jsonResponse, &lserror);
free(jsonResponse);
} else
LSMessageReply(lshandle, message, "{\"returnValue\":false,\"errorCode\":-1,\"errorText\":\"Generic error\"}", &lserror);
json_free_value(&response);
LSErrorFree(&lserror);
return returnVal;
}
LSMethod luna_methods[] = {
{ "version", version_method },
{ "list", list_method },
{ "start", start_method },
{ "stop", stop_method },
{ "status", dummy_method },
{ "jobs", dummy_method },
{ "emit", dummy_method },
{ "events", dummy_method },
{ "respawn", dummy_method },
{ "jps", jps_method },
{ 0, 0 }
};
bool register_methods(LSPalmService *serviceHandle, LSError lserror) {
return LSPalmServiceRegisterCategory(serviceHandle, "/", luna_methods,
NULL, NULL, NULL, &lserror);
}