#include <windows.h>
#include "multiserver.h"
#include "utils.h"
// save servers in linked list
typedef struct {
char displayname[260];
SERVERID serverid;
void* next;
BOOL serverupdated;
DWORD threadid; // for background threads only!
} SERVERENTRY, *PSERVERENTRY;
PSERVERENTRY server_linked_list=NULL;
PSERVERENTRY background_linked_list=NULL;
CRITICAL_SECTION bgcriticalsection={0};
BOOL bgcriticalsectioninitialized=false;
extern DWORD mainthreadid;
void InitMultiServer()
{
if (!bgcriticalsectioninitialized) {
bgcriticalsectioninitialized=true;
InitializeCriticalSection(&bgcriticalsection);
}
}
int LoadServersFromIni(char* inifilename,char* quickconnectname)
{
// Retrieve server list
int servercount=0;
char serverlist[8192];
PSERVERENTRY preventry=NULL;
BOOL updating=server_linked_list!=NULL;
if (updating) { // list exists -> update!
PSERVERENTRY thisentry;
thisentry=server_linked_list;
while (thisentry) {
thisentry->serverupdated=false;
preventry=thisentry;
thisentry=(PSERVERENTRY)(thisentry->next);
}
}
GetPrivateProfileString(NULL,NULL,"",serverlist,sizeof(serverlist),inifilename);
char *p=serverlist;
while (p[0]) {
// Each server MUST have the value "server"!!!
char server[512];
GetPrivateProfileString(p,"server","",server,sizeof(server),inifilename);
if (server[0]) {
PSERVERENTRY newentry;
servercount++;
BOOL serverfound=false;
if (updating) { // look if entry already exists
PSERVERENTRY thisentry=server_linked_list;
while (thisentry) {
if (stricmp(thisentry->displayname,p)==0) {
thisentry->serverupdated=true;
serverfound=true;
break;
}
thisentry=(PSERVERENTRY)(thisentry->next);
}
}
if (!serverfound) {
newentry=(PSERVERENTRY)malloc(sizeof(SERVERENTRY));
if (newentry) {
strlcpy(newentry->displayname,p,sizeof(newentry->displayname)-1);
newentry->serverid=NULL;
newentry->next=NULL;
newentry->serverupdated=true;
}
if (preventry)
preventry->next=newentry;
else
server_linked_list=newentry;
preventry=newentry;
}
}
p=p+strlen(p)+1;
}
// now delete all servers which aren't currently connected, and no longer in ini file
if (updating) { // list exists -> update!
PSERVERENTRY thisentry,preventry,nextentry;
thisentry=server_linked_list;
preventry=NULL;
BOOL needrelink=false; // need to re-link linked list
while (thisentry) {
if (!thisentry->serverupdated && thisentry->serverid==NULL && (quickconnectname==NULL || strcmp(thisentry->displayname,quickconnectname)!=0)) {
if (preventry)
preventry->next=NULL;
nextentry=(PSERVERENTRY)(thisentry->next);
free(thisentry);
needrelink=true;
} else {
if (needrelink) {
needrelink=false;
if (preventry)
preventry->next=thisentry;
else
server_linked_list=thisentry; // the first was deleted
}
preventry=thisentry;
nextentry=(PSERVERENTRY)(thisentry->next);
}
thisentry=nextentry;
}
}
// add "quick connect" entry as first list item
if (!updating && quickconnectname) {
PSERVERENTRY newentry=(PSERVERENTRY)malloc(sizeof(SERVERENTRY));
if (newentry) {
strcpy(newentry->displayname,quickconnectname);
newentry->serverid=NULL;
newentry->next=server_linked_list;
newentry->serverupdated=true;
server_linked_list=newentry;
servercount++;
}
}
if (!quickconnectname) // actually it's never 0 if there is a "Quick connection!"
if (servercount==0)
server_linked_list=NULL;
return servercount;
}
BOOL DeleteServerFromIni(char* servername,char* inifilename)
{
return WritePrivateProfileString(servername,NULL,NULL,inifilename);
}
int CopyMoveServerInIni(char* oldservername,char* newservername,BOOL Move,BOOL OverWrite,char* inifilename)
{
char captlist[1024];
if (stricmp(oldservername,newservername)==0)
return 0;
// now copy the options
GetPrivateProfileString(oldservername,NULL,"",captlist,sizeof(captlist)-1,inifilename);
if (captlist[0]) {
if (!OverWrite) {
char testlist[100];
// check whether server with new name already exists!
testlist[0]=0;
GetPrivateProfileString(newservername,NULL,"",testlist,sizeof(testlist)-1,inifilename);
if (testlist[0])
return 1;
}
// Kill target section to delete fields not present in source section
DeleteServerFromIni(newservername,inifilename);
char* pcapt=captlist;
while (pcapt[0]) {
char valuebuf[1024];
GetPrivateProfileString(oldservername,pcapt,"",valuebuf,sizeof(valuebuf)-1,inifilename);
WritePrivateProfileString(newservername,pcapt,valuebuf,inifilename);
pcapt+=strlen(pcapt)+1;
}
if (Move)
DeleteServerFromIni(oldservername,inifilename);
return 0;
}
return 2;
}
void FreeServerList()
{
if (server_linked_list) {
PSERVERENTRY thisentry;
thisentry=server_linked_list;
while (thisentry) {
PSERVERENTRY nextentry=(PSERVERENTRY)(thisentry->next);
if (thisentry->serverid)
free(thisentry->serverid);
free(thisentry);
thisentry=nextentry;
}
}
}
SERVERID GetServerIdFromName(char* displayname,DWORD threadid)
{
if (threadid==mainthreadid) {
if (server_linked_list) {
PSERVERENTRY thisentry;
thisentry=server_linked_list;
while (thisentry) {
if (stricmp(thisentry->displayname,displayname)==0)
return thisentry->serverid;
thisentry=(PSERVERENTRY)(thisentry->next);
}
}
} else {
EnterCriticalSection(&bgcriticalsection);
__try {
if (background_linked_list) {
PSERVERENTRY thisentry;
thisentry=background_linked_list;
while (thisentry) {
if (stricmp(thisentry->displayname,displayname)==0 &&
thisentry->threadid==threadid)
return thisentry->serverid;
thisentry=(PSERVERENTRY)(thisentry->next);
}
}
}
__finally {
LeaveCriticalSection(&bgcriticalsection);
}
}
return NULL;
}
BOOL SetServerIdForName(char* displayname,SERVERID newid)
{
DWORD id=GetCurrentThreadId();
if (id==mainthreadid) {
if (server_linked_list) {
PSERVERENTRY thisentry;
thisentry=server_linked_list;
while (thisentry) {
if (stricmp(thisentry->displayname,displayname)==0) {
if (thisentry->serverid)
free(thisentry->serverid);
thisentry->serverid=newid;
return true;
}
thisentry=(PSERVERENTRY)(thisentry->next);
}
}
} else {
EnterCriticalSection(&bgcriticalsection);
__try {
if (background_linked_list) {
PSERVERENTRY thisentry,preventry;
preventry=NULL;
thisentry=background_linked_list;
while (thisentry) {
if (stricmp(thisentry->displayname,displayname)==0 &&
thisentry->threadid==id) {
if (thisentry->serverid)
free(thisentry->serverid);
if (newid)
thisentry->serverid=newid;
else {
// remove from linked list!
if (!preventry)
background_linked_list=(PSERVERENTRY)(thisentry->next);
else
preventry->next=thisentry->next;
free(thisentry);
}
return true;
}
preventry=thisentry;
thisentry=(PSERVERENTRY)(thisentry->next);
}
}
PSERVERENTRY newentry=(PSERVERENTRY)malloc(sizeof(SERVERENTRY));
if (newentry) {
strcpy(newentry->displayname,displayname);
newentry->serverid=newid;
newentry->serverupdated=true;
newentry->threadid=id;
// insert at the beginning!
newentry->next=background_linked_list;
background_linked_list=newentry;
}
}
__finally {
LeaveCriticalSection(&bgcriticalsection);
}
}
return false;
}
void GetDisplayNameFromPath(char* Path,char* DisplayName,int maxlen)
{
char* p=Path;
while (p[0]=='\\' || p[0]=='/')
p++;
strlcpy(DisplayName,p,maxlen);
p=DisplayName;
while (p[0]!=0 && p[0]!='\\' && p[0]!='/')
p++;
p[0]=0;
}
SERVERHANDLE FindFirstServer(char* displayname,int maxlen)
{
if (server_linked_list) {
strlcpy(displayname,server_linked_list->displayname,maxlen);
return server_linked_list;
}
return NULL;
}
SERVERHANDLE FindNextServer(SERVERHANDLE searchhandle,char* displayname,int maxlen)
{
if (searchhandle) {
PSERVERENTRY thisentry=(PSERVERENTRY)(searchhandle);
thisentry=(PSERVERENTRY)thisentry->next;
if (thisentry) {
strlcpy(displayname,thisentry->displayname,maxlen);
return thisentry;
}
}
return NULL;
}
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