mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-11-14 16:31:38 +00:00
b3fb01bfed
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@14 fc73d0e0-1445-4013-8a0c-d673dee63da5
670 lines
15 KiB
C
670 lines
15 KiB
C
#include "bothdefs.h"
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#ifdef EMAILSERVER
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#include "quakedef.h"
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#include "winquake.h"
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//FIXME: the DELE command's effects arn't properly checked.
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//FIXME: no UIDL command
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//FIXME: remove sequential naming.
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char *MD5_GetPop3APOPString(char *timestamp, char *secrit);
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#define HASH_FILESYSTEM
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#ifdef HASH_FILESYSTEM
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//#include "hash.h"
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#define Hash_BytesForBuckets(b) (sizeof(bucket_t)*b)
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#define STRCMP(s1,s2) (((*s1)!=(*s2)) || strcmp(s1+1,s2+1)) //saves about 2-6 out of 120 - expansion of idea from fastqcc
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typedef struct bucket_s {
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void *data;
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char *keystring;
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struct bucket_s *next;
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} bucket_t;
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typedef struct hashtable_s {
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int numbuckets;
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bucket_t **bucket;
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} hashtable_t;
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void Hash_InitTable(hashtable_t *table, int numbucks, void *mem); //mem must be 0 filled. (memset(mem, 0, size))
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int Hash_Key(char *name, int modulus);
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void *Hash_Get(hashtable_t *table, char *name);
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void *Hash_GetKey(hashtable_t *table, int key);
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void *Hash_GetNext(hashtable_t *table, char *name, void *old);
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void *Hash_Add(hashtable_t *table, char *name, void *data);
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void *Hash_Add2(hashtable_t *table, char *name, void *data, bucket_t *buck);
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void *Hash_AddKey(hashtable_t *table, int key, void *data);
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void Hash_Remove(hashtable_t *table, char *name);
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#endif
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#ifdef _WIN32
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#define EWOULDBLOCK WSAEWOULDBLOCK
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#define EMSGSIZE WSAEMSGSIZE
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#define ECONNRESET WSAECONNRESET
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#define ECONNABORTED WSAECONNABORTED
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#define ECONNREFUSED WSAECONNREFUSED
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#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
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#define qerrno WSAGetLastError()
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#else
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#define qerrno errno
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#define MSG_PARTIAL 0
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/uio.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include <unistd.h>
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#define closesocket close
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#define ioctlsocket ioctl
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#endif
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#define POP3_PORT 110
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#define POP3_TIMEOUT 30
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static qboolean pop3active;
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static int pop3serversocket;
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typedef struct {
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char filename[MAX_QPATH];
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int size;
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qboolean deleted;
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bucket_t bucket;
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} pop3message_t;
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typedef struct svpop3client_s {
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struct svpop3client_s *next;
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int socket;
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float timeout;
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char *messagelump;
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int messagelumppos;
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int messagelumplen;
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qboolean messagelumphitbody;
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int messagelumplines; //lines to send past header
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int nummessages;
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int totalsize;
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char greeting[64];
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char username[64];
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qboolean loggedin;
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char inmessagebuffer[1024];
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int inmessagelen;
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char outmessagebuffer[1024];
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int outmessagelen;
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qboolean dropwhensent;
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#define NUMBUCKETS 64
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hashtable_t emails;
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bucket_t *bucketpointer[NUMBUCKETS];
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} svpop3client_t;
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static svpop3client_t *svpop3client;
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static void POP3_ServerInit(void)
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{
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struct sockaddr_in address;
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unsigned long _true = true;
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int port = POP3_PORT;
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if ((pop3serversocket = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
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{
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Sys_Error ("FTP_TCP_OpenSocket: socket:", strerror(qerrno));
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}
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if (ioctlsocket (pop3serversocket, FIONBIO, &_true) == -1)
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{
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Sys_Error ("FTP_TCP_OpenSocket: ioctl FIONBIO:", strerror(qerrno));
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}
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address.sin_family = AF_INET;
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address.sin_addr.s_addr = INADDR_ANY;
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if (port == PORT_ANY)
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address.sin_port = 0;
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else
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address.sin_port = htons((short)port);
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if( bind (pop3serversocket, (void *)&address, sizeof(address)) == -1)
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{
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closesocket(pop3serversocket);
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return;
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}
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listen(pop3serversocket, 3);
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pop3active = true;
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IWebPrintf("POP3 server is running\n");
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return;
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}
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static void POP3_ServerShutdown(void)
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{
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closesocket(pop3serversocket);
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pop3active = false;
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}
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static void SV_POP3_QueueMessage(svpop3client_t *cl, char *msg)
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{
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int len = strlen(msg);
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if (len + cl->outmessagelen > sizeof(cl->outmessagebuffer)-1)
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len = sizeof(cl->outmessagebuffer)-1 - cl->outmessagelen;
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Q_strncpyz(cl->outmessagebuffer+cl->outmessagelen, msg, len+1);
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cl->outmessagelen += len;
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}
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static void POP3_NewConnection(int socket)
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{
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unsigned long _true = true;
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svpop3client_t *newcl;
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newcl = IWebMalloc(sizeof(svpop3client_t));
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if (!newcl) //bother
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{
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closesocket(socket);
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return;
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}
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if (ioctlsocket (socket, FIONBIO, &_true) == -1)
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{
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closesocket(socket);
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return;
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}
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memset(newcl, 0, sizeof(svpop3client_t));
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newcl->socket = socket;
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newcl->next = svpop3client;
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svpop3client = newcl;
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newcl->timeout = realtime + POP3_TIMEOUT;
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*newcl->outmessagebuffer = '\0';
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sprintf(newcl->greeting, "<%i.%i.%i.%i.%i.%i.%i>", rand(), rand(), rand(), rand(), rand(), rand(), rand());
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// _true = strlen(newcl->greeting);
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printf("newclient\n");
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SV_POP3_QueueMessage(newcl, va("+OK %s\r\n", newcl->greeting));
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}
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static int SV_POP3_AddMessage(char *filename, int flags, void *incl)
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{
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FILE *f;
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svpop3client_t *cl = incl;
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pop3message_t *msg;
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f = fopen(filename, "rb");
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if (!f)
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return true; //shouldn't happen
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msg = IWebMalloc(sizeof(pop3message_t));
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if (!msg)
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{
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fclose(f);
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return false;
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}
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Q_strncpyz(msg->filename, filename, sizeof(msg->filename));
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msg->deleted = false;
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fseek(f, 0, SEEK_END);
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msg->size = ftell(f);
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fclose(f);
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cl->totalsize+=msg->size;
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cl->nummessages++;
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Hash_Add2(&cl->emails, va("%i", ++cl->nummessages), msg, &msg->bucket);
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return true;
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}
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static void SV_POP3_CountMessages(svpop3client_t *cl)
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{
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Hash_InitTable(&cl->emails, NUMBUCKETS, cl->bucketpointer);
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cl->totalsize=0;
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Sys_EnumerateFiles(".", va("emails/%s/*.eml", cl->username), SV_POP3_AddMessage, cl);
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}
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static pop3message_t *SV_POP3_GetMessage(svpop3client_t *cl, int num)
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{
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pop3message_t *msg;
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msg = IWebMalloc(sizeof(pop3message_t));
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if (!msg)
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return NULL;
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if (msg->deleted)
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return NULL;
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msg = Hash_Get(&cl->emails, va("%i", num));
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return msg;
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}
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static void SV_POP3_CleanUp(svpop3client_t *cl, qboolean dodelete) //closes the messages list created by SV_POP3_CountMessages
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{
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pop3message_t *msg;
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int mn;
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for (mn = 1; mn <= cl->nummessages; mn++)
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{
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msg = SV_POP3_GetMessage(cl, mn);
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if (!msg)
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continue;
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if (dodelete && msg->deleted)
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{
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remove(msg->filename);
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}
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Hash_Remove(&cl->emails, va("%i", mn));
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BZ_Free(msg);
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}
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}
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static qboolean SV_POP3_ReadMessage(svpop3client_t *cl, int index)
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{
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FILE *f;
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pop3message_t *msg;
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msg = SV_POP3_GetMessage(cl, index);
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if (!msg)
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return false;
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if (msg->deleted)
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return false;
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f = fopen(msg->filename, "rb");
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if (!f)
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return false;
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fseek(f, 0, SEEK_END);
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cl->messagelumplen = ftell(f);
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fseek(f, 0, SEEK_SET);
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cl->messagelump = IWebMalloc(cl->messagelumplen+3);
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fread(cl->messagelump, 1, cl->messagelumplen, f);
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cl->messagelump[cl->messagelumplen++] = '\r';
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cl->messagelump[cl->messagelumplen++] = '\n';
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fclose(f);
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cl->messagelumplen = strlen(cl->messagelump);
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cl->messagelumppos = 0;
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cl->messagelumphitbody = false;
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cl->messagelumplines = 0x7fffffff;
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return true;
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}
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static void SV_POP3_BuildListing(svpop3client_t *cl, qboolean isuidl)
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{
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pop3message_t *msg;
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int mn;
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char *listing;
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listing = cl->messagelump = IWebMalloc(cl->nummessages*64+3);
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for (mn = 1; mn <= cl->nummessages; mn++)
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{
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msg = SV_POP3_GetMessage(cl, mn);
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if (!msg || msg->deleted)
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continue;
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if (isuidl)
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sprintf(listing, "%i %s,S=%i\r\n", mn, msg->filename, msg->size);
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else
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sprintf(listing, "%i %i\r\n", mn, msg->size);
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listing += strlen(listing);
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}
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cl->messagelumplen = listing - cl->messagelump;
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}
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static qboolean SV_POP3_RunClient(svpop3client_t *cl) //true means client should be dropped
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{
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int read;
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char *nl;
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char *token;
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int blankline;
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if (cl->messagelump)
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{
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blankline=false;
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while (cl->outmessagelen < sizeof(cl->outmessagebuffer)-100)
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{
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if (cl->messagelumppos >= cl->messagelumplen)
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break;
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if (cl->messagelump[cl->messagelumppos] == '.') //double up all '.'s at start of lines
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cl->outmessagebuffer[cl->outmessagelen++] = '.';
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blankline = true;
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for(;;)
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{
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if (cl->messagelumppos >= cl->messagelumplen)
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break;
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if (cl->messagelump[cl->messagelumppos] > ' ')
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blankline = false;
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cl->outmessagebuffer[cl->outmessagelen++] = cl->messagelump[cl->messagelumppos];
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if (cl->messagelump[cl->messagelumppos++] == '\n')
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break;
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}
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if (blankline)
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cl->messagelumphitbody = true;
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if (cl->messagelumphitbody)
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{
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if (cl->messagelumplines--<=0)
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cl->messagelumppos = cl->messagelumplen; //easy way to terminate.
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}
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}
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if (cl->messagelumppos >= cl->messagelumplen)
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{ //we've sent the entire buffer now.
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cl->outmessagebuffer[cl->outmessagelen++] = '.';
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cl->outmessagebuffer[cl->outmessagelen++] = '\r';
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cl->outmessagebuffer[cl->outmessagelen++] = '\n';
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BZ_Free(cl->messagelump);
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cl->messagelump = NULL;
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}
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cl->outmessagebuffer[cl->outmessagelen] = '\0';
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printf("%s\n", cl->outmessagebuffer);
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}
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if (cl->outmessagelen)
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{
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read = send(cl->socket, cl->outmessagebuffer, cl->outmessagelen, MSG_PARTIAL);
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if (read < 0)
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read = 0;
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memmove(cl->outmessagebuffer, cl->outmessagebuffer + read, cl->outmessagelen - read);
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cl->outmessagelen -= read;
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cl->outmessagebuffer[cl->outmessagelen] = '\0';
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if (cl->dropwhensent && !cl->outmessagelen)
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return true;
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}
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read = recv(cl->socket, cl->inmessagebuffer+cl->inmessagelen, sizeof(cl->inmessagebuffer)-1-cl->inmessagelen, MSG_PARTIAL);
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if (read == -1)
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{
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if (qerrno != EWOULDBLOCK) //blocking is the only way to keep the connection on fail.
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return true;
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if (!*cl->inmessagebuffer)
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return false;
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//nonblocking allows us to get multiple commands from one packet.
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}
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else if (read == 0) //don't quite know why this happens.
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return true; //believed to be an indication that the other end has disconnected.
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else
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{
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cl->timeout = realtime + POP3_TIMEOUT;
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cl->inmessagelen += read;
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if (cl->inmessagelen >= sizeof(cl->inmessagebuffer)-1) //happens if we fill the buffer with no hope of empting it.
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return true;
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cl->inmessagebuffer[cl->inmessagelen] = '\0';
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}
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nl = strchr(cl->inmessagebuffer, '\n');
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if (nl)
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{
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*nl = '\0';
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//Con_Printf("%s\n", cl->inmessagebuffer);
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read = nl - cl->inmessagebuffer + 1;
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token = COM_ParseToken(cl->inmessagebuffer);
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//auth mechanism 1
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if (!strcmp(com_token, "USER"))
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{
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token = COM_ParseToken(token);
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if (*com_token)
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{
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Q_strncpyz(cl->username, com_token, sizeof(cl->username));
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SV_POP3_QueueMessage(cl, "+OK User name accepted, password please\r\n");
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SV_POP3_CleanUp(cl, true);
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cl->loggedin = false;
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}
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else
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SV_POP3_QueueMessage(cl, "-ERR no username was specified\r\n");
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}
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else if (!strcmp(com_token, "PASS"))
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{
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#ifndef CLIENTONLY
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int id;
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extern cvar_t rank_filename;
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token = COM_ParseToken(token);
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id = Rank_GetPlayerID(cl->username, atoi(com_token), false);
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if (!id && *rank_filename.string)
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{
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SV_POP3_QueueMessage(cl, "-ERR User or Password not valid\r\n");
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SV_POP3_CleanUp(cl, true);
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cl->loggedin = false;
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}
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else
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#endif
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{
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SV_POP3_QueueMessage(cl, "+OK Logged in\r\n");
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cl->loggedin = true;
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SV_POP3_CountMessages(cl);
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}
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}
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//auth2
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else if (!strcmp(com_token, "APOP"))
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{
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int id;
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int pass;
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extern cvar_t rank_filename;
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token = COM_ParseToken(token);
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if (*com_token)
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{
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Q_strncpyz(cl->username, com_token, sizeof(cl->username));
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#ifndef CLIENTONLY
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token = COM_ParseToken(token);
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pass = Rank_GetPass(cl->username);
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id = Rank_GetPlayerID(cl->username, pass, false);
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if ((!id && *rank_filename.string) || strcmp(MD5_GetPop3APOPString(cl->greeting, va("%i", pass)), com_token))
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{
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SV_POP3_QueueMessage(cl, "-ERR User or Password not valid\r\n");
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SV_POP3_CleanUp(cl, true);
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cl->loggedin = false;
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}
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else
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#endif
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{
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SV_POP3_QueueMessage(cl, "+OK Logged in\r\n");
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cl->loggedin = true;
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SV_POP3_CountMessages(cl);
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}
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}
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}
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//now they need to have been logged in properly.
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else if (!cl->loggedin)
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SV_POP3_QueueMessage(cl, "-ERR You didn't log in properly\r\n");
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else if (!strcmp(com_token, "STAT"))
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{
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char text[64];
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sprintf(text, "+OK %i %i\r\n", cl->nummessages, cl->totalsize);
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SV_POP3_QueueMessage(cl, text);
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}
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else if (!strcmp(com_token, "LIST"))
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{
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|
SV_POP3_QueueMessage(cl, "+OK EMail listing follows:\r\n");
|
|
SV_POP3_BuildListing(cl, false);
|
|
}
|
|
else if (!strcmp(com_token, "DELE"))
|
|
{
|
|
pop3message_t *msg;
|
|
int mnum;
|
|
token = COM_ParseToken(token);
|
|
mnum = atoi(com_token);
|
|
|
|
msg = SV_POP3_GetMessage(cl, mnum);
|
|
if (!msg)
|
|
SV_POP3_QueueMessage(cl, "-ERR message index out of range\r\n");
|
|
else if (msg->deleted)
|
|
SV_POP3_QueueMessage(cl, "-ERR message already deleted\r\n");
|
|
else
|
|
{
|
|
msg->deleted = true;
|
|
SV_POP3_QueueMessage(cl, "+OK Message marked for deleted\r\n");
|
|
}
|
|
}
|
|
else if (!strcmp(com_token, "TOP"))
|
|
{
|
|
token = COM_ParseToken(token);
|
|
if (SV_POP3_ReadMessage(cl, atoi(com_token)))
|
|
{
|
|
token = COM_ParseToken(token);
|
|
SV_POP3_QueueMessage(cl, "+OK message contents follow:\n");
|
|
cl->messagelumplines = atoi(com_token);
|
|
}
|
|
else
|
|
SV_POP3_QueueMessage(cl, "-ERR Message index wasn't valid\n");
|
|
}
|
|
else if (!strcmp(com_token, "RETR"))
|
|
{
|
|
token = COM_ParseToken(token);
|
|
if (SV_POP3_ReadMessage(cl, atoi(com_token)))
|
|
SV_POP3_QueueMessage(cl, "+OK message contents follow:\n");
|
|
else
|
|
SV_POP3_QueueMessage(cl, "-ERR Message index wasn't valid\n");
|
|
}
|
|
else if (!strcmp(com_token, "UIDL"))
|
|
{
|
|
SV_POP3_QueueMessage(cl, "+OK I hope someone likes you\r\n");
|
|
SV_POP3_BuildListing(cl, true);
|
|
}
|
|
else if (!strcmp(com_token, "QUIT"))
|
|
{
|
|
SV_POP3_CleanUp(cl, true);
|
|
|
|
SV_POP3_QueueMessage(cl, "+OK I hope someone likes you\r\n");
|
|
cl->dropwhensent = true;
|
|
}
|
|
else
|
|
SV_POP3_QueueMessage(cl, "-ERR Unrecognised command\r\n");
|
|
//printf("%s\n", cl->outmessagebuffer);
|
|
|
|
memmove(cl->inmessagebuffer, cl->inmessagebuffer + read, cl->inmessagelen - read);
|
|
cl->inmessagelen -= read;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void SV_POP3_RunClients(void)
|
|
{
|
|
svpop3client_t *cl, *prev;
|
|
|
|
cl = svpop3client;
|
|
prev = NULL;
|
|
while(cl)
|
|
{
|
|
if (cl->timeout < realtime || SV_POP3_RunClient(cl))
|
|
{
|
|
printf("drop client\n");
|
|
closesocket(cl->socket);
|
|
if (prev)
|
|
prev->next = cl->next;
|
|
else
|
|
svpop3client = cl->next;
|
|
|
|
if (cl->messagelump)
|
|
IWebFree(cl->messagelump);
|
|
SV_POP3_CleanUp(cl, false);
|
|
|
|
IWebFree(cl);
|
|
if (prev)
|
|
cl = prev->next;
|
|
else
|
|
cl = svpop3client;
|
|
continue;
|
|
}
|
|
prev = cl;
|
|
cl = cl->next;
|
|
}
|
|
}
|
|
|
|
qboolean SV_POP3(qboolean activewanted)
|
|
{
|
|
struct sockaddr from;
|
|
int fromlen;
|
|
int clientsock;
|
|
|
|
if (!pop3active)
|
|
{
|
|
if (activewanted)
|
|
POP3_ServerInit();
|
|
else
|
|
return false;
|
|
}
|
|
else if (!activewanted)
|
|
{
|
|
POP3_ServerShutdown();
|
|
return false;
|
|
}
|
|
|
|
fromlen = sizeof(from);
|
|
clientsock = accept(pop3serversocket, (struct sockaddr *)&from, &fromlen);
|
|
|
|
if (clientsock == -1)
|
|
{
|
|
if (qerrno == ECONNABORTED || qerrno == ECONNRESET)
|
|
{
|
|
Con_TPrintf (TL_CONNECTIONLOSTORABORTED);
|
|
return false;
|
|
}
|
|
else if (qerrno != EWOULDBLOCK)
|
|
{
|
|
Con_TPrintf (TL_NETGETPACKETERROR, strerror(qerrno));
|
|
return false;
|
|
}
|
|
}
|
|
else //we got a new client. yay.
|
|
POP3_NewConnection(clientsock);
|
|
|
|
SV_POP3_RunClients();
|
|
|
|
return true;
|
|
}
|
|
|
|
#endif
|