inbox.cpp

一个国外学生做的基于Web浏览器的email程序

				{	cout << data;} //not in attachment mode ok to dis

				//turns off message display
				if (USEATTACHMENTS && ismime)
				{
					if (onmimeheader && strncmp(data, "\n", 1) == 0)
					{
						onmimeheader = 0;
					}
				}
				else if (USEATTACHMENTS && !ismime)
				{
					if (strncmp(data, "begin ", 6)==0)
					{
						dontdisplay = 1;
						if (attachcount < 100)
						{
							attachcount++;
							cout << "Attached file removed from display." << endl;
							attachname[attachcount] = new char[500];
							strncpy(attachname[attachcount], data, 499);
							attachname[attachcount][499] = '\0'; 
						}
				    	}
				}
				else {}
			} // off header
		}//attach count == num
	} //while

	cout << "</textarea></form>" << endl;
	cout << "</td></tr></table>";
	if (USEATTACHMENTS)
	{
	 if (attachcount > 0)
	 {
		cout << "<font size=\"+2\"><u>";
 		cout << WEM_Attachments << "</u></font><br>";
		if (ismime)
		{
			attachcount--; //lower count because last break gets counted
		}

		
		for (int loop = 1; loop <= attachcount; loop++)
		{
			cout << "<a href=\"" << "./attachments/";
			cout << cleanfilename(attachname[loop]+10);

			if (ismime)
				cout << "?mdisattch=" << number << "x";
			else
				cout << "?disattch=" << number << "x";

			cout << loop << "\">";
			cout << attachname[loop]+10;
			cout << "</a><br>";
			delete(attachname[loop]);
		}
		cout << "<br>";
	 }
	}

	tail();	
	bothunlock(mailstore);
	fclose(mailstore);

	
	//sends receipt
	if (sendreceipt == 1 && domarkold == 1)
	{
		FILE * out;
		out = popen(SENDMAIL, "w");
		if (out != NULL) //if an error has occurred do not report it.
		{


			removereturn(receiptaddress+19);
			fprintf(out, "To: %s\n", receiptaddress+19);
			if (gotsubject == 1)
			{
				removereturn(subject+9);
				fprintf(out, "Subject: Receipt: %s\n", subject+9);
			}
			else
				fprintf(out, "Subject: Receipt\n");

			//sending Return-Path
			FILE *returnfile;
			char returnpath[400];
			char returnaddr[400];
			snprintf(returnpath, 400, "%s/.webmail/return",info->pw_dir);
			returnfile = fopen(returnpath, "r");
			if (returnfile != NULL && USERRETURN)
			{
				for (int i = 0; i < 400; i++)
				{
					returnaddr[i] = fgetc(returnfile);
					if (returnaddr[i] == EOF)
					{
						returnaddr[i] = '\0';
						break;  
					}
				}
				fclose(returnfile);

				fprintf(out, "Reply-to: <%s>\n", returnaddr);
				fprintf(out, "From: %s\n", returnaddr);

			}
			else {
				if (HOSTMODE == 2) //defined
				{
					fprintf(out, "Reply-to: <%s@%s>\n", info->pw_name, HOSTNAME);
					fprintf(out, "From: %s@%s\n", info->pw_name, HOSTNAME);
				}
				else if (HOSTMODE == 1) //httpd
				{
					char *host;
					if ((host = getenv("SERVER_NAME")) != NULL)
					{
 					 	fprintf(out, "Reply-to: <%s@%s>\n", info->pw_name, host);
					 	fprintf(out, "From: %s@%s\n", info->pw_name, host);
				 	}
					else
						fprintf(out, "From: %s\n", info->pw_name);
				}
				else	//Use sendmail
				{
					 fprintf(out, "From: %s\n", info->pw_name);
				}
			}
			fprintf(out, "\n");
			fprintf(out, "Your message has been delivered.\n");
			if (pclose(out) != 0)
			{
			}
			sync(); //needed or markold will erase the receipt, to yourself only.
		}
		
	}

	cout << "</body></HTML>" << endl;
	if (domarkold == 1)
		markold(number);
	return;


}
void deleteinbox()
{
	char *env;
	int mailnum;
	char mailbox[400];
	passwd *info;
	
	if ((env = getenv("QUERY_STRING"))==NULL)
	{
		disjavascript("", "delete error", "menu");
		return;
	}

	mailnum = atoi(env+7);
	info=getpwnam(globaluser);
	snprintf(mailbox, 400, MAILBOXPATH);

	deletemail(mailbox, mailnum);  

	disjavascript("", "Mail deleted", "menu");
}
void multidelinbox()
{
}
void multideletemailinbox(vector<int>& todel)
{
}
void showinboxattach()
{
// not used
	char *env;
	char *env2;
	int loop = 16;
	int attachnum;
	int mailnum;
	char mailbox[400];
	passwd *info;
	
	if ((env = getenv("QUERY_STRING"))==NULL)
	{
		disjavascript("?menusaved", "Attach display error", "menu");
		return;
	}

	while (env[loop] != '\0')
	{
		if (env[loop] == 'x')
		{
			env[loop] = '\0';
			env2=env+loop+1;
			
		}
		loop++;
	}
	attachnum = atoi(env2);
	mailnum = atoi(env+16);
	info=getpwnam(globaluser);
	snprintf(mailbox, 400, "%s/.webmail/saved", info->pw_dir);

	showattachment(mailbox, mailnum, attachnum);  
	
}
void viewhtml()
{
	char *env;
	int number;
	passwd *info;
	FILE *mailstore;
	char filename[400];
	char data[500];
	int count = 0;
	int offofheader = 0;
	int domarkold = 1;

	if ((env = getenv("QUERY_STRING"))==NULL)
	{
		menu();
		return;
	}
	number = atoi(env+9);

	info=getpwnam(globaluser);
	snprintf(filename, 400, MAILBOXPATH);

	mailstore = fopen(filename, "r");
	if (mailstore == NULL)
	{
		error("viewhtml():ERROR while tring to read mail file");
		return;
	}
	if (bothlock(mailstore, 'r')!=0)
	{
		fclose(mailstore);
		error("viewhtml():error while locking read mail file");
		return;
	}	

	cout << "content-type: text/HTML" << endl;
	cout << "Pragma: No-Cache" << endl << endl;

	cout << "<html><head>" << endl;
	cout << "<title>Web E-Mail</title>" << endl;
	cout << "<META HTTP-EQUIV=\"expires\" content=\"0\">" << endl;
	cout << "</head>" << endl;
	cout << "<body text=\"#000000\" bgcolor=\"#FFFFFF\" link=\"#0000EF\" vlink=\"#0000EF\" alink=\"#FF0000\" background=/email/bg1.gif>";
	
	header(WEM_HTML_View);

//cout << "<a href=\"" << EMAILPATH << "?addname=" << number << "\">" << WEM_Add_address << "</a>&nbsp;&nbsp;"; 
//cout << "<a href=\"" << EMAILPATH << "?reply=" << number << "\">" << WEM_Reply << "</a>&nbsp;&nbsp;";
//cout << "<a href=\"" << EMAILPATH << "?forward=" << number << "\">" << WEM_Forward << "</a><br>";
	cout << "<a href=\"" << EMAILPATH << "?read=" << number << "\">" << WEM_Normal_View << "</a>&nbsp;&nbsp;";
	cout << "<a href=\"" << EMAILPATH << "?viewprint=" << number << "\">" << "Printable view" << "</a>&nbsp;&nbsp;";
//cout << "<a href=\"" << EMAILPATH << "?delete=" << number << "\">" << WEM_Delete << "</a>";

	cout << "<br><br>" << endl;

	while (fgets(data, 499, mailstore) != NULL)
	{
		if (strncmp(data, "From ", 5)==0)
		{
			count++;
		}
		if (count == number)
		{
			while (fgets(data, 499, mailstore) !=NULL)
			{
				if (strncmp(data, "From ", 5)==0)
					break;
				if (data[0] == '\n')
					offofheader = 1; 
				if (offofheader == 0)
				{
					if (strncasecmp(data, "Status: R", 9) == 0)
					{
						domarkold =0;
					}
					/*if (strncasecmp(data,"From:", 5)==0 ||
					strncasecmp(data, "To:", 3) == 0 ||
					strncasecmp(data, "Subject:",8)==0 ||
					strncasecmp(data, "Date:", 5)==0 ||
					strncasecmp(data, "cc: ", 4)==0)
					{
						cout << data;
					}*/
				}
				else
				{
					cout << data;
				}
			}
			break;
		}
	}

	cout << "<br><br>" << endl;
	tail();	

	cout << "</body></HTML>" << endl;

	bothunlock(mailstore);
	fclose(mailstore);

	if (domarkold == 1)
		markold(number);

	return;

}
void printableview()
{
	char *env;
	int number;
	FILE *mailstore;
	char filename[400];
	char data[500];
	passwd *info;
	int count = 0;
	int offofheader = 0;
	int extenddata = 0;

	if ((env = getenv("QUERY_STRING"))==NULL)
	{
		menu();
		return;
	}
	number = atoi(env+10);

	info=getpwnam(globaluser);
	snprintf(filename, 400, MAILBOXPATH);

	mailstore = fopen(filename, "r");
	if (mailstore == NULL)
	{
		error("printableview():ERROR while tring to read mail file");
		return;
	}	
	if (bothlock(mailstore, 'r')!=0)
	{
		fclose(mailstore);
		error("printableview():Error locking mail file");
		return;
	}

	cout << "content-type: text/plain" << endl;
	cout << "Pragma: no-cache" << endl << endl;

	while (fgets(data, 499, mailstore) != NULL)
	{
		if (strncmp(data, "From ", 5)==0)
		{
			count++;
		}
		if (count == number)
		{
			while (fgets(data, 499, mailstore) !=NULL)
			{
				if (strncmp(data, "From ", 5)==0)
					break;
				if (data[0] == '\n')
					offofheader = 1; 
				if (offofheader == 0)
				{
					if (strncasecmp(data,"From: ", 6)==0 ||
					strncasecmp(data, "To: ", 4) == 0 ||
					strncasecmp(data, "Date: ", 6)==0 ||
					strncasecmp(data, "cc: ", 4)==0 ||
					strncasecmp(data, "Reply-To: ", 10)==0 ||
					strncasecmp(data, "Subject: ",9)==0 ||
					strncasecmp(data, "Return-Receipt-To:",18)==0)
					{
						extenddata = 1;
						cout << data;
					}
					else if (extenddata == 1 && 
					strncasecmp(data, "        ",8)==0)
					{
						cout << data;
					}
					else //turn off extenddata
					{
						extenddata = 0;
					}
 
				}
				else
				{
					cout << data;
				}
			}
			break;
		}
	}
	bothunlock(mailstore);
	fclose(mailstore);
	return;
}

void mdisattch()
{
	char *env;
	char *env2;
	int loop = 16;
	int attachnum;
	int mailnum;
	char mailbox[400];
	passwd *info;
	
	if ((env = getenv("QUERY_STRING"))==NULL)
	{
		disjavascript("?menusaved", "Attach display error", "menu");
		return;
	}

	while (env[loop] != '\0')
	{
		if (env[loop] == 'x')
		{
			env[loop] = '\0';
			env2=env+loop+1;
			
		}
		loop++;
	}
	attachnum = atoi(env2);
	mailnum = atoi(env+10);
	info=getpwnam(globaluser);
	snprintf(mailbox, 400, MAILBOXPATH);

	mshowattachment(mailbox, mailnum, attachnum);
}