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#include "inc/functions.h"
#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <unistd.h>
#include <pwd.h>
#include <sys/types.h>
/**
* function addPrinters(xmlNode* node, char* script)
* ----------------------------------------------------------
* runs content of script (absolute path of a script-file)
* -> this expects the script to print out printer information
* in the following format
*
* printserver\tprinter\tprinter description
*
* all other output has to be directed to /dev/null
*
* then this function add some printer-nodes to the xml-file
* in "settings/eintrag/printers"
* (which will be created also if needed.)
* in the following form: <br/>
*
* <printer name="printer" path="//printserver/printer" >
* Printerdescription
* </printer>
*/
bool addPrinters(xmlNode* node, char* script) {
if(node == NULL) {
return false;
}
bool printer = false;
vector<string> info_printer;
const int MAX_LENGTH = 300;
char line[MAX_LENGTH];
char delims[] = "\t";
string strline;
FILE* inp = 0;
unsigned int tindex = 0;
xmlNodePtr cur = node->children;
xmlNodePtr printernode = NULL;
// Get <printers> node
while(cur != NULL) {
if (!xmlStrcmp(cur->name, (const xmlChar *)"printers")){
printer = true;
printernode = cur;
break;
}
cur = cur->next;
}
if(! printer) {
printernode = xmlNewNode(NULL, (const xmlChar*) "printers");
if(printernode != NULL ) {
xmlAddChild(node, printernode);
}
else {
cerr << "No <printers> node created" << endl;
}
}
// Parse input of printer-Skript (called by "char* script")
// and write into <printer> nodes
if( (inp = popen(script, "r" )) ) {
while(fgets(line, MAX_LENGTH, inp ) != NULL) {
strline = string(line);
if(strline.length() > 3) {
queue<unsigned int> temp;
temp.push( strline.find_first_of( delims , 0) );
while( temp.back() != string::npos ) {
temp.push( strline.find_first_of( delims, temp.back()+1 ) );
}
unsigned int t_front;
string tstr = string("");
while( tindex != string::npos ) {
// build printer-info element
t_front = temp.front();
if(tindex == 0) {
tstr = strline.substr(0, t_front);
}
else if(t_front != string::npos) {
tstr = strline.substr(tindex+1, t_front-tindex-1) ;
}
else {
tstr = strline.substr( tindex+1, strline.length() - tindex-2 );
}
if(tstr.length() > 2) {
info_printer.push_back( tstr );
// DEBUG
cout << info_printer.back() << endl;
}
tindex = t_front;
temp.pop();
}
// Construct <printer> nodes
xmlNodePtr pNode = xmlNewNode(NULL, (const xmlChar*) "printer");
xmlNewProp(pNode, (const xmlChar*) "name", (const xmlChar*) info_printer.at(1).c_str());
xmlNewProp ( pNode, (const xmlChar*) "path", (const xmlChar*)
string( string( "\\\\" ) + info_printer.at(0) + string( "\\" ) + info_printer.at(1) ).c_str() );
if(info_printer.size() > 2) {
xmlAddChild( pNode, xmlNewText( (const xmlChar*) info_printer.at(2).c_str() ) );
}
if(pNode != NULL) {
xmlAddChild( printernode, pNode);
}
info_printer.clear();
tindex = 0;
}
}
pclose(inp);
return true;
}
fprintf(stderr, "Couldn't run \"%s\" script!", script);
return false;
}
/******************************************
* Adds user info and hostname to xml
*
* usernode: <username param="user" />
* hostnamenode: <hostname param="host" />
******************************************/
void addInfo(xmlNode* node) {
if(node == NULL) {
return;
}
bool user = false;
bool host = false;
const int MAX_LENGTH = 200;
char hostname[MAX_LENGTH];
uid_t id;
passwd *pwd;
string strline;
xmlNodePtr cur = node->children;
xmlNodePtr usernode = NULL;
xmlNodePtr hostnamenode = NULL;
// just use some standard Linux functions here ...
id = geteuid(); // gets effective user id
pwd = getpwuid(id); // gets passwd struct (including username)
gethostname(hostname, MAX_LENGTH-1); // gets hostname
// Get <username> node and add "username#param" attribute
while(cur != NULL) {
if (!xmlStrcmp(cur->name, (const xmlChar *)"username")){
user = true;
usernode = cur;
break;
}
cur = cur->next;
}
if(! user) {
usernode = xmlNewNode(NULL, (const xmlChar*) "username");
if(usernode != NULL ) {
xmlNewProp(usernode, (const xmlChar*) "param", (const xmlChar*) pwd->pw_name);
xmlAddChild(node, usernode);
}
else {
cerr << "<username> node could not be created!" << endl;
}
}
else {
// set param attribute in <username>
xmlSetProp(usernode, (const xmlChar*) "param", (const xmlChar*) pwd->pw_name);
}
cur = node->children;
// Get <hostname> node and add "hostname#param" attribute
while(cur != NULL) {
if (!xmlStrcmp(cur->name, (const xmlChar *)"hostname")){
host = true;
hostnamenode = cur;
break;
}
cur = cur->next;
}
if(! host) {
hostnamenode = xmlNewNode(NULL, (const xmlChar*) "hostname");
if(hostnamenode != NULL ) {
xmlNewProp(hostnamenode, (const xmlChar*) "param", (const xmlChar*) hostname);
xmlAddChild(node, hostnamenode);
}
else {
cerr << "<hostname> node could not be created!" << endl;
}
}
else {
// add param value to existant hostname-node
xmlSetProp(hostnamenode, (const xmlChar*) "param", (xmlChar*) hostname);
}
return;
}
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