email.cpp

一个国外学生做的基于Web浏览器的email程序

#include "webemail.h"
#include "save.h"
#include "sent.h"
#include "inbox.h"
#include "delete.h"
#include "security.h"

//ttd = things to do
//Use old send() for ie 3.0

char *SENDMAIL;
int USEATTACHMENTS;
int HOSTMODE;
int FOUNDNAME;
char *HOSTNAME;
int USEQUOTAS;
int MAX_MBOX_SIZE;
int USEEXTERNMAIL;
int USELINKHOME;
char *LINKHOME;
int USELINKHOMENAME;
char *LINKHOMENAME;
char globaluser[400];
int USEISPHELP;
char *ISPHELP;
int USEAUTHORINFO;
int USERRETURN;
int ALLOWROOT;

main()
{
	umask(066); //sets the mask
	handlesignals(); //prevent early interuption

	globaluser[0] = '\0';
	doconfig(); //sets up webemail

	int todo;
	char line[400];
	todo = status(line);
	
FILE *lockfile;

	if (todo == 2) //no cookie but has pass and user name
	{
		if (setcookies(line) == 1)
			menu();
		else //cookies not set
			intro();
	}
	else if (todo == 4) //reset cookies and goto intro
	{
		reset();
		intro();
	}
	else if (verifycookies()==0)
	{
		lockfile = processlock();

//		fprintf(stderr, "Starting webmail...");
//		fprintf(stderr, "%i ", todo);
//		char *f;
//		f = getenv("REQUEST_METHOD");
//		fprintf(stderr, "%s\n", f);

		if (todo == 1) //has cookie no other action
			menu();
		else if (todo == 3) //cookie and sending mail
			send();
		else if (todo == 5) //wants to write
			wewrite(0, "", 0);
		else if (todo == 6) // display cfgstatus
			cfgstatus();
		else if (todo == 7) // read message
			showinbox();
		else if (todo == 8)
			deleteinbox();
		else if (todo == 9)
			reply();
		else if (todo == 10)
			address();
		else if (todo == 11)
			addaddress("", -1);
		else if (todo == 12)
			addaddressproc();
		else if (todo == 13)
			removeaddr(-1);
		else if (todo == 14)
			sendto();
		else if (todo == 15)
			addredit();
		else if (todo == 16)
			readd();
		else if (todo == 17)
			addname();
		else if (todo == 18)
			gaddaddress(-1);
		else if (todo == 19)
			gaddaddressproc();
		else if (todo == 20)
			gaddrremove(-1);
		else if (todo == 21)
			gaddrsend();
		else if (todo == 22)
			gaddredit();
		else if (todo == 23)
			greadd();
		else if (todo == 24)
			about();
		else if (todo == 25)
			setup();
		else if (todo == 26)
			viewhtml();
		else if (todo == 27)
			distitle();
		else if (todo == 28)
			dismenu();
		else if (todo == 29)
			disinbox();
		else if (todo == 30)
		{	//prevents lock up on large files
			processunlock(lockfile);
			disattch();
		}
		else if (todo == 31)
			disconf();
		else if (todo == 32)
			procconf();
		else if (todo == 33 && USEEXTERNMAIL)
		{	//needs to prevent a lock up
			//if popcheck gets stuck
			processunlock(lockfile);
			popcheck();
			return 0; 
			//exit early so we don't unlock twice 
		}
		else if (todo == 34)
			multidel();
		else if (todo == 35)
			forward();
		else if (todo == 36)
		{
			printableview();
		}
		else if (todo == 37)
			savefile();
		else if (todo == 38)
			dissaved();
		else if (todo == 39)
			showsaved();
		else if (todo == 40)
			deletesaved();
		else if (todo == 41)
			multidelsaved();
		else if (todo == 42)
			dissent();
		else if (todo == 43)
			showsent();
		else if (todo == 44)
			deletesent();
		else if (todo == 45)
			multidelsent();
		else if (todo == 46)
		{
			processunlock(lockfile);
			showsavedattach();
		}
		else if (todo == 47)
		{
			processunlock(lockfile);
			showsentattach();
		}
		else if (todo == 48)
		{
			processunlock(lockfile);
			mdisattch();
		}
		else if (todo == 49)
		{
			processunlock(lockfile);
			mshowsavedattach();
		}
		else if (todo == 50)
		{
			processunlock(lockfile);
			mshowsentattach();
		}
		else //has no cookies or pass/user
			intro();

//		fprintf(stderr, "%i", todo);
//		fprintf(stderr, "....Stoping webmail\n\n");

		processunlock(lockfile);
	}
	else
		intro();

	return 0;
}
void reset() //sends two cookies to reset the user and password cookies
{
	cout << "Set-cookie: EUSER=none; expires=Wednesday, 09-JAN-1980 23:00:00 GMT" << endl;
	cout << "Set-cookie: EPASS=none; expires=Wednesday, 09-JAN-1980 23:00:00 GMT" << endl;
//	cout << "Set-cookie: EUSER=none" << endl;
//	cout << "Set-cookie: EPASS=none" << endl;
//	cout << "Set-cookie: EUSER=none; expires=Sunday, 09-JAN-2000 23:00:00 GMT" << endl;
//	cout << "Set-cookie: EPASS=none; expires=Sunday, 09-JAN-2000 23:00:00 GMT" << endl;

	return;
}
int status(char line[400]) //choices what should happen
{
	char *env;
	char userspace[100];
	char *user;

	if ((env = getenv("HTTP_COOKIE")) != NULL)
	{
		//check for problematic cookies
		user = finddata(env, "EUSER=", userspace);
		if (strncasecmp(userspace, "none", 4) == 0)
		{
			if (fgets(line, 399, stdin)!=NULL)
			{
				line[399] = '\0';
				return 2; //getting pass from stdin
			}
			return 0; //intro screen	
		}
		if ((env = getenv("QUERY_STRING")) != NULL)
		{
			if (strncmp(env, "send", 4) == 0)
			{
				return 3; //cookie & send mail		
			}	
			if (strncmp(env, "reset", 5) == 0)
			{
				return 4; //reset cookies
			}
			if (strncmp(env, "write", 5) == 0)
			{
				return 5; //write
			}
			if (strncmp(env, "cfgstatus", 9)==0)
			{
				return 6; //show cfgstatus
			}
			if (strncmp(env, "read=", 5)==0)
			{
				return 7; //wants to read an email message
			}
			if (strncmp(env, "delete=", 7)==0)
			{
				return 8; //delete a email message
			}
			if (strncmp(env, "reply=", 6)==0)
			{
				return 9; //reply to an email
			}
			if (strncmp(env, "book", 4)==0)
			{
				return 10; //goto addressbook
			}
			if (strncmp(env, "addtobook", 9)==0)
			{
				return 11; //add to addressbook
			}
			if (strncmp(env, "addproc", 7) == 0)
			{
				return 12; //proccess data to add to address book
			}
			if (strncmp(env, "addrdelete=", 11) == 0 )
			{
				return 13; //delete an address from the book
			}
			if (strncmp(env, "addrsend=", 9) == 0)
			{
				return 14; //send to selected user
			}
			if (strncmp(env, "addredit=", 9) == 0)
			{
				return 15; //edit an address
			}
			if (strncmp(env, "addreproc=", 10) == 0)
			{
				return 16; //add edited address
			}
			if (strncmp(env, "addname=", 8) == 0)
			{
				return 17; //add new address from email
			}
			if (strncmp(env, "gaddtobook", 10) == 0)
			{
				return 18; //add group address
			}
			if (strncmp(env, "gaddproc", 8) == 0)
			{
				return 19; //proc address
			}
			if (strncmp(env, "gaddrdelete=", 12) == 0)
			{
				return 20; //remove group address
			}
			if (strncmp(env, "gaddrsend=", 10) == 0)
			{
				return 21; //send to group
			} 
			if (strncmp(env, "gaddredit=", 10) == 0)
			{
				return 22; //edit group address
			}
			if (strncmp(env, "gaddreproc=", 11) == 0)
			{
				return 23; //readd group data
			}
			if (strncmp(env, "about", 5) == 0)
			{
				return 24; //about
			}
			if (strncmp(env, "wesetup", 7) == 0)
			{
				return 25; //run setup program
			}
			if (strncmp(env, "viewhtml=", 9) == 0)
			{
				return 26; //view e-mail in html mode
			}
			if (strncmp(env, "distitle", 8) == 0)
			{
				return 27; //view title
			}
			if (strncmp(env, "dismenu", 7) == 0)
			{
				return 28; //view menu
			}
			if (strncmp(env, "dismail", 7) == 0)
			{
				return 29; //view mail
			}
			if (strncmp(env, "disattch=", 9) ==0)
			{
				return 30; //view attachment
			}
			if (strncmp(env, "conf", 4)==0)
			{
				return 31; //view config menu
			}
			if (strncmp(env, "procconf", 8)==0)
			{
				return 32; //process conf
			}
			if (strncmp(env, "popcheck", 8)==0)
			{
				return 33; //check pop account
			}
			if (strncmp(env, "multidel", 8)==0)
			{
				return 34; //multidel
			}
			if (strncmp(env, "forward=", 8)==0)
			{
				return 35; //forward
			}
			if (strncmp(env, "viewprint=", 10)==0)
			{
				return 36; //printable view
			}
			if (strncmp(env, "save=", 5)==0)
			{
				return 37;  //saves mail
			}
			if (strncmp(env, "dissaved", 8)==0)
			{
				return 38;
			}
			if (strncmp(env, "showsaved=", 10)==0)
			{
				return 39;
			}
			if (strncmp(env, "deletesaved=", 12)==0)
			{
				return 40;
			}
			if (strncmp(env, "savedmultidel", 13)==0)
			{
				return 41;
			} 
			if (strncmp(env, "dissent", 7)==0)
			{
				return 42;
			}
			if (strncmp(env, "showsent=", 9)==0)
			{
				return 43;
			}
			if (strncmp(env, "deletesent=", 11)==0)
			{
				return 44;
			}
			if (strncmp(env, "sentmultidel", 12)==0)
			{
				return 45;
			} 
			if (strncmp(env, "showsavedattach=", 16)==0)
			{
				return 46;
			} 
			if (strncmp(env, "showsentattach=", 15)==0)
			{
				return 47;
			} 
			if (strncmp(env, "mdisattch=", 10)==0)
			{
				return 48;
			} 
			if (strncmp(env, "mshowsavedattach=", 17)==0)
			{
				return 49;
			} 
			if (strncmp(env, "mshowsentattach=", 16)==0)
			{
				return 50;
			} 

		}
		return 1; //cookie only
	}
	if (fgets(line, 399, stdin)!=NULL)
	{
		line[399] = '\0';
		return 2; //getting pass from stdin
	}

	return 0; //intro screen
}