/* ===================================================================== */
/* copyrighted by Isaac Tsai, 1998, 1999, 2000 */
/* ===================================================================== */
#include <stdio.h>
#include <ctype.h>
#ifndef NO_STDLIB_H
#include <stdlib.h>
#else
char *getenv();
#endif
#include <stdio.h>
#include "capaToken.h"
#include "capaParser.h"
#include "capaCommon.h"
#include "ranlib.h"
#ifdef _MAIN_PROGRAM_
#undef _MAIN_PROGRAM_
#endif
#include "capaCGI.h"
void getword
CAPA_ARG((char *word, char *line, char stop))
{
int x = 0,y;
for(x=0;((line[x]) && (line[x] != stop));x++)
word[x] = line[x];
word[x] = '\0';
if(line[x]) ++x;
y=0;
while((line[y++] = line[x++]));
}
char *makeword
CAPA_ARG((char *line, char stop))
{
int x = 0,y;
char *word = (char *) malloc(sizeof(char) * (strlen(line) + 1));
for(x=0;((line[x]) && (line[x] != stop));x++)
word[x] = line[x];
word[x] = '\0';
if(line[x]) ++x;
y=0;
while((line[y++] = line[x++]));
return word;
}
char *fmakeword
CAPA_ARG((FILE *f,char stop,int * cl))
{
int wsize;
char *word;
int ll;
wsize = 102400;
ll=0;
word = (char *) malloc(sizeof(char) * (wsize + 1));
while(1) {
word[ll] = (char)fgetc(f);
if(ll==wsize) {
word[ll+1] = '\0';
wsize+=102400;
word = (char *)realloc(word,sizeof(char)*(wsize+1));
}
--(*cl);
if((word[ll] == stop) || (feof(f)) || (!(*cl))) {
if(word[ll] != stop) ll++;
word[ll] = '\0';
return word;
}
++ll;
}
}
char x2c
CAPA_ARG((char *what))
{
register char digit;
digit = (what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : (what[0] - '0'));
digit *= 16;
digit += (what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : (what[1] - '0'));
return(digit);
}
void unescape_url
CAPA_ARG((char *url))
{
register int x,y;
for(x=0,y=0;url[y];++x,++y) {
if((url[x] = url[y]) == '%') {
url[x] = x2c(&url[y+1]);
y+=2;
}
}
url[x] = '\0';
}
void plustospace
CAPA_ARG((char *str))
{
register int x;
for(x=0;str[x];x++) if(str[x] == '+') str[x] = ' ';
}
int rind
CAPA_ARG((char *s,char c))
{
register int x;
for(x=strlen(s) - 1;x != -1; x--)
if(s[x] == c) return x;
return -1;
}
int getline
CAPA_ARG((char *s,int n,FILE *f))
{
register int i=0;
while(1) {
s[i] = (char)fgetc(f);
if(s[i] == CR)
s[i] = fgetc(f);
if((s[i] == 0x4) || (s[i] == LF) || (i == (n-1))) {
s[i] = '\0';
return (feof(f) ? 1 : 0);
}
++i;
}
}
void send_fd
CAPA_ARG((FILE *f, FILE *fd))
{
char c;
while (1) {
c = fgetc(f);
if(feof(f)) return;
fputc(c,fd);
}
}
int ind
CAPA_ARG((char *s,char c))
{
register int x;
for(x=0;s[x];x++)
if(s[x] == c) return x;
return -1;
}
void escape_shell_cmd
CAPA_ARG((char *cmd))
{
register int x,y,l;
l=strlen(cmd);
for(x=0;cmd[x];x++) {
if(ind("&;`'\"|*?~<>^()[]{}$\\",cmd[x]) != -1){
for(y=l+1;y>x;y--)
cmd[y] = cmd[y-1];
l++; /* length has been increased */
cmd[x] = '\\';
x++; /* skip the character */
}
}
}
/* ========================================== Updated according to Frank Wolfs
description on July 7 1997 */
char *c_getpath
CAPA_ARG((FILE *f))
{
register int c;
register int idx;
char tmp_string[MAX_BUFFER_SIZE];
char *new_string;
idx = 0;
tmp_string[0]='\0';
c_ignorewhite(f);
do {
c = getc(f);
tmp_string[idx] = c;
idx++;
} while (isalnum(c) || c == '{' || c == '}' || c == '-' || c == '\\' ||
c == '^' || c == '_' || c == '/' || c == '.' || c == ':' ||
c == '+' || c == '*' || c == '#' || c == '!' || c == '=' ||
c == ';' || c == '$' || c == '(' || c == ')' || c == '[' ||
c == ']' || c == '?' || c == '>' || c == '<' || c == ',');
ungetc(c,f); idx--;
tmp_string[idx] = 0;
new_string = (char *)malloc( (idx+1)*sizeof(char) );
strncpy(new_string,tmp_string, (idx+1) );
return (new_string);
}
/* ------------------------------------------------------------------------- */
void web_printheader(FILE *out)
{
FILE *header;
char *buf[MAX_BUFFER_SIZE];
int amt=0;
if ((capa_access("HTMLheader",F_OK|R_OK)!=-1) &&
(NULL!=(header=fopen("HTMLheader","r")))) {
while(0 < (amt=fread(buf,1,MAX_BUFFER_SIZE,header))) {
fwrite(buf,1,amt,out);
}
fclose(header);
} else {
fprintf(out,"<HTML><HEAD>\n");
fprintf(out,"<BODY BGCOLOR=\"#FFFFFF\" LINK=\"#0000EE\" VLINK=\"#EE1100\">\n");
}
}
void web_printfooter(FILE *out)
{
FILE *footer;
char *buf[MAX_BUFFER_SIZE];
int amt=0;
if ((capa_access("HTMLfooter",F_OK|R_OK)!=-1) &&
(NULL!=(footer=fopen("HTMLfooter","r")))) {
while(0 < (amt=fread(buf,1,MAX_BUFFER_SIZE,footer))) {
fwrite(buf,1,amt,out);
}
fclose(footer);
} else {
fprintf(out,"</BODY></HTML>\n");
}
}
int web_getclassdir
CAPA_ARG((char **cpath_p, char **cown_p, char *class))
{
FILE *fp;
char filename[FILE_NAME_LENGTH];
char *cname_p;
int done;
char c;
sprintf(filename,"class.conf");
if ((fp=fopen(filename,"r"))==NULL) {
sprintf(filename,"../class.conf");
if ((fp=fopen(filename,"r"))==NULL) {
fprintf(stdout,"<!-- Error: can't open %s --> \n",filename); fflush(stdout);
return (2);
}
}
do {
c_ignorewhite(fp);
c = getc(fp); ungetc(c,fp);
if( c != EOF ) {
cname_p = c_getword(fp);
*cpath_p = c_getpath(fp);
*cown_p = c_getword(fp);
throwaway_line(fp);
if( ! strcasecmp(cname_p, class) ) {
done = 1;
} else {
free(cname_p); free(*cpath_p); free(*cown_p);
done = 0;
}
} else {
done = 1;
}
} while ( ! done );
fclose(fp);
free(cname_p);
return (1);
}
int web_log(log_str)char *log_str;
{
FILE *fp;
char filename[FILE_NAME_LENGTH];
sprintf(filename,"web_access.log");
if ((fp=fopen(filename,"a"))==NULL) {
return -1;
}
flockstream(fp);
fprintf(fp,"%s",log_str);fflush(fp);
funlockstream(fp);
fclose(fp);
return 0;
}
int w_log_timing(student_number,set,section,log_string)
char student_number[MAX_STUDENT_NUMBER+1];
int set;
int section;
char *log_string;
{
char filename[FILE_NAME_LENGTH],
*ct;
FILE *fp;
time_t t;
sprintf(filename,"records/webtiming%d.log",set);
if ((fp=fopen(filename,"a"))==NULL) {
return (-1);
}
/* CREATE LOG ENTRY */
time(&t);
ct=ctime(&t);
ct[ strlen(ct)-1 ]=0; /* Trash newline */
fprintf(fp,"%s %s %s\n",student_number,ct,log_string); fflush(fp);
fclose(fp);
return (0);
}
int w_log_attempt(student_number,set,log_string)
char student_number[MAX_STUDENT_NUMBER+1];
int set;
char *log_string;
{
char filename[FILE_NAME_LENGTH],
*ct;
FILE *fp;
time_t t;
sprintf(filename,"records/weblog%d.db",set);
if ((fp=fopen(filename,"a"))==NULL) {
return (-1);
}
/* CREATE LOG ENTRY */
time(&t);
ct=ctime(&t);
ct[ strlen(ct)-1 ]=0; /* Trash newline */
fprintf(fp,"%s %s %s\n",student_number,ct,log_string); fflush(fp);
fclose(fp);
return (0);
}
int w_log_submissions(student_number,set,log_string)
char student_number[MAX_STUDENT_NUMBER+1];
int set;
char *log_string;
{
char filename[FILE_NAME_LENGTH],timeStr[FILE_NAME_LENGTH],buf2[MAX_BUFFER_SIZE];
FILE *fp;
time_t t;
struct tm *tmtime;
int do_log_submissions=1,result;
char buf[MAX_BUFFER_SIZE];
result=read_capa_config("do_log_submissions",buf);
if (result != 0 && result != -1)
if (strcasecmp(buf2,"no")==0)
do_log_submissions=0;
if (!do_log_submissions) return 0;
sprintf(filename,"records/websubmissions%d.db",set);
if ((fp=fopen(filename,"a"))==NULL) {
return (-1);
}
/* CREATE LOG ENTRY */
time(&t);
tmtime=localtime(&t);
strftime(timeStr,FILE_NAME_LENGTH,"%d/%m %X",tmtime);
/*ct[ strlen(ct)-1 ]=0;*/ /* Trash newline */
protect_log_string(log_string);
fprintf(fp,"%s\t%s\t%s\n",student_number,timeStr,log_string); fflush(fp);
fclose(fp);
return (0);
}
void w_get_responses(int x,int q_idx,char* submissions_str)
{
int leng, sub_idx;
char buf[MAX_BUFFER_SIZE];
if( !strncmp(g_entries[x].name,"INPUT",5) ) {
if( index(g_entries[x].name, ',' ) == NULL ) { /* only one answer */
sscanf(g_entries[x].name,"INPUT%d",&q_idx);
if( q_idx > 0 && q_idx < MAX_PROBLEM_CNT ) {
if ( ! is_all_ws(g_entries[x].val) ) {
g_stu_ans_pp[q_idx] = (StudentAnswer_t *)capa_malloc(sizeof(StudentAnswer_t),1);
(g_stu_ans_pp[q_idx])->a_idx = 1;
(g_stu_ans_pp[q_idx])->a_str = strsave(g_entries[x].val);
(g_stu_ans_pp[q_idx])->a_next = NULL;
trim_response_ws((g_stu_ans_pp[q_idx])->a_str);
}
leng = strlen( g_entries[x].val );
if ( leng > 0 ) {
sprintf(buf,"%d\t%s\t",q_idx,g_entries[x].val);
strcat(submissions_str,buf);
}
}
} else { /* this answer belongs to /AND answers */
sscanf(g_entries[x].name,"INPUT%d,%d",&q_idx,&sub_idx);
if( q_idx > 0 && q_idx < MAX_PROBLEM_CNT ) {
if ( ! is_all_ws(g_entries[x].val) ) {
StudentAnswer_t *sa_p;
sa_p = (StudentAnswer_t *)capa_malloc(sizeof(StudentAnswer_t),1);
sa_p->a_idx = sub_idx;
sa_p->a_str = strsave(g_entries[x].val);
sa_p->a_next = NULL;
trim_response_ws(sa_p->a_str);
if( g_stu_ans_pp[q_idx] == NULL ) {
g_stu_ans_pp[q_idx] = sa_p;
} else {
StudentAnswer_t *sb_p;
for(sb_p=g_stu_ans_pp[q_idx]; sb_p->a_next; sb_p=sb_p->a_next);
sb_p->a_next = sa_p;
}
}
leng = strlen( g_entries[x].val );
if ( leng > 0 ) {
sprintf(buf,"%d\t%s\t",q_idx,g_entries[x].val);
strcat(submissions_str,buf);
}
}
}
}
if( !strncmp(g_entries[x].name,"LAST",4) ) {
StudentAnswer_t *sa_p;
if( index(g_entries[x].name, ',' ) == NULL ) { /* only one answer */
sscanf(g_entries[x].name,"LAST%d",&q_idx);
if( q_idx > 0 && q_idx < MAX_PROBLEM_CNT ) {
sa_p = (StudentAnswer_t *)capa_malloc(sizeof(StudentAnswer_t),1);
sa_p->a_idx = 1;
sa_p->a_str = strsave(g_entries[x].val);
sa_p->a_next = NULL;
g_last_ans_pp[q_idx] = sa_p;
}
} else {
sscanf(g_entries[x].name,"LAST%d,%d",&q_idx,&sub_idx);
if( q_idx > 0 && q_idx < MAX_PROBLEM_CNT ) {
sa_p = (StudentAnswer_t *)capa_malloc(sizeof(StudentAnswer_t),1);
sa_p->a_idx = sub_idx;
sa_p->a_str = strsave(g_entries[x].val);
sa_p->a_next = NULL;
if( g_last_ans_pp[q_idx] == NULL) {
g_last_ans_pp[q_idx] = sa_p;
} else {
StudentAnswer_t *sb_p;
for(sb_p=g_last_ans_pp[q_idx]; sb_p->a_next; sb_p=sb_p->a_next);
sb_p->a_next = sa_p;
}
}
}
}
}
/* ========================================================================= */
/* Check in: Class name (CLASS)
Student Number (SNUM)
CAPA ID (CAPAID)
M=1
Try set: Class name (CLASS)
Student Number (SNUM)
CAPA ID (CAPAID)
First question to print (STARTNUM)
M=2
View previous: Class name (CLASS)
Student Number (SNUM)
CAPA ID (CAPAID)
First question to print (STARTNUM)
View set (VSET)
M=3
Set summary:
--------------------------------------------------------------------------- */
int w_get_input()
{
register int x,m=0;
int cl, q_idx, result = 1;
T_header header;
char log_str[MAX_BUFFER_SIZE],buf[MAX_BUFFER_SIZE];
char submissions_str[MAX_BUFFER_SIZE];
time_t curtime;
char *time_str,*UNKNOWN="UNKNOWN";
int error=0;
char *envPtr=NULL,*envPtr2=NULL;
#ifdef CGI_DBUG
fprintf(g_cgi,"Entered get_input()\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
envPtr=getenv("REQUEST_METHOD");
if(!envPtr) {
fprintf(stdout,"Enviroment variable REQUEST_METHOD not set.\n");
fprintf(stdout,"CAPA is improperly installed or run, please let your \
instructor know about this error.\n");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
error |= 1;
return error;
}
if(strcmp(envPtr,"POST")) {
fprintf(stdout,"This script should be referenced with a METHOD of POST.\n");
fprintf(stdout,"CAPA is improperly installed or run, please let your \
instructor know about this error.\n");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"Request_method is not POST\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 2; return (error);
}
envPtr=getenv("CONTENT_TYPE");
if(!envPtr) {
fprintf(stdout,"Enviroment variable CONTENT_TYPE not set.\n");
fprintf(stdout,"CAPA is improperly installed or run, please let your \
instructor know about this error.\n");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
fflush(stdout);
error |= 4;
return error;
}
if(strncmp(envPtr,"application/x-www-form-urlencoded",33)) {
fprintf(stdout,"This script can only be used to decode form results. \n");
fprintf(stdout,"CAPA is improperly installed or run, please let your \
instructor know about this error.\n");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"CONTENT_TYPE is not application/x-www-form-urlencoded\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 8; return (error);
}
envPtr=getenv("CONTENT_LENGTH");
if(!envPtr) {
fprintf(stdout,"Enviroment variable CONTENT_LENGTH not set.\n");
fprintf(stdout,"CAPA is improperly installed or run, please let your \
instructor know about this error.\n");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
error |= 16;
return error;
}
cl = atoi(envPtr);
#ifdef CGI_DBUG
fprintf(g_cgi,"CONTENT_LENGTH is %d\n",cl); fflush(g_cgi);
#endif /* CGI_DBUG */
for(x=0;cl && (!feof(stdin));x++) {
m=x;
g_entries[x].val = fmakeword(stdin,'&',&cl);
plustospace(g_entries[x].val);
unescape_url(g_entries[x].val);
g_entries[x].name = makeword(g_entries[x].val,'=');
}
/* ---------------------------------------------------- */
g_entered_pin = 0; g_run_mode =0;
submissions_str[0]='\0';
for(x=0; x <= m; x++) {
if( !strcmp(g_entries[x].name,"CLASS") ) {
strncpy(g_class_name,g_entries[x].val,MAX_CLASS_CHAR);
}
if( !strcmp(g_entries[x].name,"M") ) { /* run mode */
sscanf(g_entries[x].val,"%d",&g_run_mode);
}
if( !strcmp(g_entries[x].name,"STARTNUM")) {
sscanf(g_entries[x].val,"%d",&g_start_question);
}
if( !strcmp(g_entries[x].name,"SNUM") ) {
strncpy(g_student_number,g_entries[x].val,MAX_STUDENT_NUMBER+4);
}
if( !strcmp(g_entries[x].name,"CAPAID") ) {
sscanf(g_entries[x].val,"%d",&g_entered_pin);
}
if( !strcmp(g_entries[x].name,"SET") ) {
sscanf(g_entries[x].val,"%d",&g_set);
}
if( !strcmp(g_entries[x].name,"VSET") ) {
if (g_entries[x].val[0] == '\0') {
g_vset=0;
} else {
sscanf(g_entries[x].val,"%d",&g_vset);
}
}
if( !strcmp(g_entries[x].name,"KND") ) {
sscanf(g_entries[x].val,"%d",&g_skind);
}
w_get_responses(x,q_idx,submissions_str);
free(g_entries[x].val);
free(g_entries[x].name);
}
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE: Parse input\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
/* --------------------------------------------------------- */
/* if( strcasecmp(g_prog_name,"capacheckin") == 0 ) { */
if( g_run_mode == M_CHECKIN ) { /* capa_checkin */
time(&curtime); time_str = ctime(&curtime);
time_str[ strlen(time_str)-1 ] = 0;
envPtr=getenv("REMOTE_HOST");
if(!envPtr) {
fprintf(stdout,"<!-- Enviroment variable REMOTE_HOST not set.-->\n");
envPtr=getenv("REMOTE_ADDR");
if(!envPtr) {
fprintf(stdout,"<!-- Enviroment variable REMOTE_ADDR not set.-->\n");
envPtr=UNKNOWN;
error |= 32;
}
}
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE: REMOTE_HOST\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
envPtr2=getenv("HTTP_USER_AGENT");
if(!envPtr2) {
fprintf(stdout,"<!-- Enviroment variable HTTP_USER_AGENT not set. -->\n");
envPtr2=UNKNOWN;
error |= 64;
}
sprintf(log_str,"%s\t%s\t%s\t%s\t%s\n",g_class_name,g_student_number,time_str,envPtr,envPtr2);
if (web_log(log_str) == -1 ) {
fprintf(stdout,"Unable to log access to the system. Please notify instructor\n.");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
error |= 128;
return error;
}
}
#if defined(NeXT)
getwd(g_cwd);
#else
getcwd(g_cwd,255);
#endif
web_getclassdir(&g_cpath, &g_cowner, g_class_name);
sprintf(g_class_fullpath,"%s/%s",g_cpath,g_class_name);
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE: getclassdir() [%s]\n",g_class_fullpath); fflush(g_cgi);
#endif /* CGI_DBUG */
if( !capa_access(g_class_fullpath, F_OK) == 0 ) {
fprintf(stdout,"ACCESS: could not access the class directory [%s]!\n",g_class_fullpath);
fprintf(stdout,"Please exit the web browser and try accessing the system again\n");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
fflush(stdout);
sprintf(log_str,"Failed to access class dir, g_class_fullpath: %s\tg_cpath: %s\tg_class_name: %s\tg_cowner: %s\tg_cwd: %s\t",
g_class_fullpath,g_cpath,g_class_name,g_cowner,g_cwd);
if (web_log(log_str) == -1 ) {
fprintf(stdout,"Unable to log access to the system. Please notify instructor\n.");
fflush(stdout);
error |= 256;
return error;
}
#ifdef CGI_DBUG
fprintf(g_cgi,"NO ACCESS: cannot access() [%s]\n",g_class_fullpath); fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 512;
return (error);
}
/* ---------------------------------------------------- */
/* change working directory to the class */
/* ---------------------------------------------------- */
chdir(g_class_fullpath); /* before performing any capa*() calls */
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE cd to [%s]\n",g_class_fullpath); fflush(g_cgi);
#endif /* CGI_DBUG */
/* Now in proper directory, can log submissions */
if ( g_run_mode == M_CHECKANS) {
if (w_log_submissions(g_student_number,g_set,submissions_str) == -1 ) {
fprintf(stdout,"Unable to log submissions. Please notify instructor\n.");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
error |= 1024;
return error;
}
}
result=read_capa_config("capaweb_cgibin_path",buf);
if (result != 0 && result != -1) {
g_cgibin_path=capa_malloc(strlen(buf)+1,1);
strcpy(g_cgibin_path,buf);
} else {
g_cgibin_path=capa_malloc(strlen("capa-bin")+1,1);
strcpy(g_cgibin_path,"capa-bin");
}
if( g_entered_pin != 0 ) {
g_login_set = capa_PIN(g_student_number,999,g_entered_pin);
#ifdef CGI_DBUG
fprintf(g_cgi,"Succeed in login to set %d with pin %d\n",g_login_set,g_entered_pin); fflush(g_cgi);
#endif /* CGI_DBUG */
/* ----------------------------------------------------
printf("Your entered capa id %d, login to set %d\n", g_entered_pin, g_login_set);
printf("The real capa id for %s is %d\n",g_student_number,capa_PIN(g_student_number,1,0));
---------------------------------------------------- */
} else {
fprintf(stdout,"CAPA ID entered was zero, this is not valid.\n");
fprintf(stdout,"No tries have been deducted for the last submission.\n");
fflush(stdout);
error |= 2048; return (error);
}
if (!g_login_set) {
fprintf(stdout,"The student ID (%s) or CAPA ID (%d) that you entered \
is not listed for the class (%s) that you have selected. Please check that \
you have selected the correct class on the CAPA logon page and that the \
student ID and CAPA ID are correct.\n",
g_student_number, g_entered_pin, g_class_name);
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"CAPA ID or student number is not valid.\n");
fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 4096; return (error);
} else {
if ( g_login_set > 99 ) {
fprintf(stdout,"The student ID (%s) or CAPA ID (%d) that you entered \
is not listed for the class (%s) that you have selected. Please check that \
you have selected the correct class on the CAPA logon page and that the \
student ID and CAPA ID are correct.\n",
g_student_number, g_entered_pin, g_class_name);
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"CAPA ID is not valid.\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 8192; return (error);
}
if(g_login_set < g_vset ) {
fprintf(stdout,"Your CAPA ID (for set %d) does not allow you to view set %d.\n",g_login_set, g_vset);
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"Login set %d is less than view set %d.\n",g_login_set,g_vset); fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 16384; return (error);
}
chdir(g_class_fullpath); /* again, to make sure */
if ( capa_get_student(g_student_number,&g_student_data) == 0 ) {
fprintf(stdout,"Entered student id is not in the class list.\n");
fprintf(stdout,"Please check that have selected the correct class \
and have entered you student id correctly.\n");
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"get_student(): Student id not in the classl file.\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 32768; return (error);
} else {
time(&curtime);
if (capa_get_header(&header, g_login_set)) {
fprintf(stdout,"This problem set is not ready yet.\n");
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"get_header(): Problem set not ready.\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 65536; return (error);
}
capa_mfree(header.weight);
capa_mfree(header.partial_credit);
/* ===> if (compare_datetime(curtime,header.open_date) < 0 ) { */
if( capa_check_date(CHECK_OPEN_DATE,g_student_number,
g_student_data.s_sec,g_login_set) < 0 ) {
fprintf(stdout,"This set(%d) is not yet open. Please try back later.\n",g_login_set);
fflush(stdout);
#ifdef CGI_DBUG
fprintf(g_cgi,"check_date(): Problem set not open.\n");
fflush(g_cgi);
#endif /* CGI_DBUG */
error |= 131072; return (error);
}
}
}
return (error);
}
void append_qtext_addbr(new_str) char *new_str;
{
int ii,jj,len;
char *br_added;
if (new_str==NULL) return;
len=strlen(new_str);
br_added=capa_malloc(len*5,sizeof(char));
for (ii=0,jj=0;ii<len;ii++) {
if (new_str[ii] == '\n') {
br_added[jj]='<';jj++;br_added[jj]='b';jj++;br_added[jj]='r';jj++;
br_added[jj]='>';jj++;br_added[jj]='\n';jj++;
} else {
br_added[jj]=new_str[ii];jj++;
}
}
br_added[jj]='\0';
append_qtext(br_added);
capa_mfree(br_added);
}
void append_qtext_addbr2(new_str) char *new_str;
{
char *br="<br>\n";
char single[2];
int ii,len;
single[0]='\0';single[1]='\0';
if (new_str==NULL) return;
len=strlen(new_str);
for (ii=0;ii<len;ii++) {
if (new_str[ii] == '\n') {
append_qtext(br);
} else {
single[0]=new_str[ii];
append_qtext(single);
}
}
}
/* ============================================================================= */
void append_qtext(new_str) char *new_str;
{
int ii,len;
if (new_str==NULL) return;
len=strlen(new_str);
#ifdef CGI_DBUG
fprintf(g_cgi,"before: len %d; g_qchar_cnt %d; g_qsize %d\n",
len,g_qchar_cnt,g_qsize);
fflush(g_cgi);
#endif /* CGI_DBUG */
if (g_qchar_cnt+len>g_qsize-3) {
char *temp_text;
g_qsize=(g_qchar_cnt+len)*2;
temp_text=capa_malloc(g_qsize,sizeof(char));
strncpy(temp_text,g_question_txt,g_qchar_cnt);
temp_text[g_qchar_cnt]='\0';
capa_mfree(g_question_txt);
g_question_txt=temp_text;
/*
g_qsize=(g_qchar_cnt+len)*2;
g_question_txt=realloc(g_question_txt,g_qsize);
*/
}
for(ii=0;ii<len;ii++) {
g_question_txt[g_qchar_cnt+ii]=new_str[ii];
}
g_qchar_cnt += len;
g_question_txt[g_qchar_cnt]='\0';
#ifdef CGI_DBUG
fprintf(g_cgi,"after: len %d; g_qchar_cnt %d; g_qsize %d; strlen(g_question_txt):%d\n",len,g_qchar_cnt,g_qsize,strlen(g_question_txt));
fflush(g_cgi);
#endif /* CGI_DBUG */
}
void append_stext(new_str) char *new_str;
{
int ii,len;
if (new_str==NULL) return;
len=strlen(new_str);
#ifdef CGI_DBUG
fprintf(g_cgi,"appending status{%s}\nlen %d; g_schar_cnt %d; g_ssize %d\n",
new_str,len,g_schar_cnt,g_ssize);
fflush(g_cgi);
#endif /* CGI_DBUG */
if (g_schar_cnt+len>g_ssize-2) {
char *temp_text;
g_ssize=(g_schar_cnt+len)*2;
temp_text=capa_malloc(g_ssize,sizeof(char));
strncpy(temp_text,g_status_txt,g_schar_cnt);
capa_mfree(g_status_txt);
g_status_txt=temp_text;
}
for(ii=0;ii<len;ii++) {
g_status_txt[g_schar_cnt+ii]=new_str[ii];
}
g_schar_cnt += len;
g_status_txt[g_schar_cnt+1]='\0';
#ifdef CGI_DBUG
fprintf(g_cgi,"len %d; g_schar_cnt %d; g_ssize %d\n",len,g_schar_cnt,g_ssize);
fflush(g_cgi);
#endif /* CGI_DBUG */
}
/* ============================================================================= */
/* ------------------------------------------------------------
printf("ENV<br>\n");
printf("SERVER_PROTOCOL:%s<br>",getenv("SERVER_PROTOCOL"));
printf("PATH_INFO:%s<br>",getenv("PATH_INFO"));
printf("PATH_TRANSLATED:%s<br>\n",getenv("PATH_TRANSLATED"));
printf("SCRIPT_NAME:%s<br>\n",getenv("SCRIPT_NAME"));
printf("QUERY_STRING:%s<br>\n",getenv("QUERY_STRING"));
printf("REMOTE_HOST:%s<br>\n",getenv("REMOTE_HOST"));
printf("REMOTE_USER:%s<br>\n",getenv("REMOTE_USER"));
printf("REMOTE_IDENT:%s<br>\n",getenv("REMOTE_IDENT"));
printf("USER_AGENT:%s<br>\n",getenv("USER_AGENT"));
printf("HTTP_USER_AGENT:%s<br>\n",getenv("HTTP_USER_AGENT"));
------------------------------------------------------------
*/
/* ------------------------------------------------------ */
/* A class directory must have */
/* records/ */
/* */
/* returns: 0 structure is correct, but no set.db files */
/* -1 structure is not correct */
/* >=1 the last set.db */
int
check_class_get_maxset(dir_path) char *dir_path;
{
char f_name[1024];
int set;
if( capa_access(dir_path, F_OK) == 0 ) { /* class dir exists */
sprintf(f_name,"%s/records",dir_path);
if( capa_access(f_name, F_OK) == 0 ) { /* class/records dir exists */
for(set = 1; ; set++ ) {
sprintf(f_name,"%s/records/set%d.db",dir_path,set);
if(capa_access(f_name, F_OK) == -1 ) break;
}
set--;
} else {
set = -1;
}
} else {
set = -1;
}
return (set);
}
/* ------------------------------------------------------------------------- */
/* Get Exam and Quiz Path */
/* return 0, 1, 2, 3 */
/* 0: Neither exist */
/* 1: Exam.path exists */
/* 2: Quiz.path exists */
/* 3: Both Exam.path and Quiz.path exists */
/* ------------------------------------------------------------------------- */
int
check_exam_quiz_path()
{
char buf[MAX_BUFFER_SIZE];
int result = 0, configResult=0;
configResult=read_capa_config("exam_path",buf);
if (configResult != 0 && configResult != -1) {
g_exam_set = check_class_get_maxset(buf);
if(g_exam_set > 0 ) {
result = 1;
sprintf(g_exam_path,buf);
}
}
configResult=read_capa_config("quiz_path",buf);
if (configResult != 0 && configResult != -1) {
g_quiz_set = check_class_get_maxset(buf);
if(g_quiz_set > 0 ) {
result = (result | 2);
sprintf(g_quiz_path,buf);
}
}
return (result);
}
int
check_termscore_option()
{
char buf[MAX_BUFFER_SIZE];
int result = 0, configResult=0;
configResult=read_capa_config("term_score_applet",buf);
if (configResult != 0 && configResult != -1) {
fprintf(stdout,"<!-- term_score_applet is in capa.config file -->\n");
if (strcasecmp(buf,"yes")==0) {
fprintf(stdout,"<!-- term_score_applet is YES -->\n");
result=1;
}
}
return (result);
}
/* ============================================================================= */
void
print_mainmenu(class,sn,pin)char *class; char *sn;int pin;
{
char buf[MAX_BUFFER_SIZE];
int outcome,configResult,term_summary_button=1;
char *serverName;
serverName=getenv("SERVER_NAME");
if (!serverName) {
fprintf(stdout,"Enviroment variable SERVER_NAME not set.\n");
fprintf(stdout,"Unable to complete actions.\n");
return;
}
fprintf(stdout,"<TITLE>%s main menu</TITLE>\n",g_class_name);
fprintf(stdout,"<h3>%s</h3><br>\n",g_student_name);
fprintf(stdout,"<menu>\n");
fprintf(stdout,"<li><form method=\"get\" action=\"http://%s/CAPA/help.html\">",serverName);
fprintf(stdout,"<input type=\"submit\" value=\"Help\" ></form>\n");
fprintf(stdout,"<li><form method=\"post\" ");
/* fprintf(stdout," target=\"right_frame\" "); */
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",class);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",sn);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",pin);
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_TRYSET);
fprintf(stdout,"<input type=\"hidden\" name=\"STARTNUM\" value=\"%d\">\n",1);
fprintf(stdout,"<input type=\"submit\" value=\"Try current set\" ></form>\n");
fprintf(stdout,"<li><form method=\"post\" ");
/* fprintf(stdout," target=\"right_frame\" "); */
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",class);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",sn);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",pin);
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_VIEWPREV);
fprintf(stdout,"<input type=\"hidden\" name=\"STARTNUM\" value=\"%d\">\n",1);
fprintf(stdout,"<input type=\"submit\" value=\"View previous set:\" >");
fprintf(stdout,"<b> set:</b><input name=\"VSET\" value=\"\" size=4></form>\n");
/*Term Summary*/
configResult=read_capa_config("term_summary_button",buf);
if (configResult != 0 && configResult != -1 ) {
if (strcasecmp(buf,"no")==0) {
term_summary_button=0;
}
}
if (term_summary_button) {
fprintf(stdout,"<li><form method=\"post\" ");
/* fprintf(stdout," target=\"right_frame\" "); */
sprintf(buf,"action=\"http://%s/%s/capahtml\">",serverName,g_cgibin_path);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",class);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",sn);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",pin);
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_VIEWSUMM);
fprintf(stdout,"<input type=\"submit\" value=\"Display term summary\" ></form>\n");
}
outcome = check_exam_quiz_path();
if( outcome & 1 ) { /* exam summary */
fprintf(stdout,"<li><form method=\"post\" ");
/* fprintf(stdout," target=\"right_frame\" "); */
sprintf(buf,"action=\"http://%s/%s/capahtml\">",serverName,g_cgibin_path);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",class);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",sn);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",pin);
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_EXAMSUMM);
fprintf(stdout,"<input type=\"submit\" value=\"Display Exam summary\" ></form>\n");
}
if( outcome & 2 ) { /* Quiz summary */
fprintf(stdout,"<li><form method=\"post\" ");
/* fprintf(stdout," target=\"right_frame\" "); */
sprintf(buf,"action=\"http://%s/%s/capahtml\">",serverName,g_cgibin_path);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",class);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",sn);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",pin);
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\" >\n",M_QUIZSUMM );
fprintf(stdout,"<input type=\"submit\" value=\"Display Quiz summary\" ></form>\n");
}
outcome = check_termscore_option();
fprintf(stdout,"<!-- Outcome of check_termscore_option()=%d -->\n",outcome);
/*Termscore Button*/
if( outcome ) {
fprintf(stdout,"<li><form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",class);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",sn);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",pin);
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\" >\n",M_TERMSCORE );
fprintf(stdout,"<input type=\"submit\" value=\"Extrapolate Term score\" ></form>\n");
}
/*Exit Button*/
fprintf(stdout,"<TD><form method=\"get\" action=\"http://%s/CAPA/class.html\">",serverName);
fprintf(stdout,"<input type=\"button\" value=\"Exit\" onclick=\"window.close()\"></form></TD>");
fprintf(stdout,"</menu>\n"); fflush(stdout);
}
/* ====================================================================================== */
void
print_page_header(mode,num_quest) int mode;int num_quest;
{
char buf[MAX_BUFFER_SIZE], discussdir[MAX_BUFFER_SIZE];
char *serverName;
int configResult,term_summary_button=1;
buf[0]='\0';
discussdir[0]='\0';
serverName=getenv("SERVER_NAME");
if (!serverName) {
fprintf(stdout,"Enviroment variable SERVER_NAME not set.\n");
fprintf(stdout,"Unable to complete actions.\n");
return;
}
/* now done in the .qz file
fprintf(stdout,"<TITLE>%s set%d</TITLE>",g_class_name,g_login_set);
if( mode == VIEW_PREVIOUS_MODE ) {
fprintf(stdout,"<H2>%s set%d</H2>\n",g_class_name,g_vset);
} else {
fprintf(stdout,"<H2>%s set%d</H2>\n",g_class_name,g_login_set);
}
fprintf(stdout,"<H3>%s</H3>\n",g_student_data.s_nm);
*/
fprintf(stdout,"<A NAME=\"TOP\"></A>");
fprintf(stdout,"<TABLE cellpadding=0 cellspacing=0 border=0>\n<TR><TD>");
/*Term summary button*/
configResult=read_capa_config("term_summary_button",buf);
if (configResult != 0 && configResult != -1 ) {
if (strcasecmp(buf,"no")==0) {
term_summary_button=0;
}
}
#ifdef CGI_DBUG
fprintf(g_cgi,"buf: %s\ntermsum: %d\n",buf,term_summary_button); fflush(g_cgi);
#endif /* CGI_DBUG */
if (term_summary_button) {
fprintf(stdout,"<form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/capahtml\">",serverName,g_cgibin_path);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_VIEWSUMM);
fprintf(stdout,"<input type=\"submit\" value=\"Term summary\" ></form></TD>\n");
}
/*Exit Button*/
fprintf(stdout,"<TD><form method=\"get\" action=\"http://%s/CAPA/class.html\">",serverName);
fprintf(stdout,"<input type=\"button\" value=\"Exit\" onclick=\"window.close()\"></form></TD>");
/*help button*/
if (mode != VIEW_PREVIOUS_MODE) {
fprintf(stdout,"<TD><form method=\"get\" action=\"http://%s/CAPA/help.html\">",serverName);
fprintf(stdout,"<input type=\"submit\" value=\"Help\"></form></TD>");
}
/*Reload button*/
fprintf(stdout,"<TD><form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
fprintf(stdout,"<input type=\"hidden\" name=\"STARTNUM\" value=\"%d\">\n",g_start_question);
if (mode == VIEW_PREVIOUS_MODE ) {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_VIEWPREV);
fprintf(stdout,"<input type=\"hidden\" name=\"VSET\" value=\"%d\" size=4>\n",g_vset);
} else {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_TRYSET);
}
fprintf(stdout,"<input type=\"submit\" value=\"Reload\" >\n</form></TD>");
#ifdef NOT_DEFINED
/* Next Button */
if ( (!(g_num_questions_per_page==ALL_QUESTIONS)) &&
((g_num_questions_per_page+g_start_question)<num_quest)) {
fprintf(stdout,"<TD><form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
fprintf(stdout,"<input type=\"hidden\" name=\"STARTNUM\" value=\"%d\">\n",g_start_question+g_num_questions_per_page);
if (mode == VIEW_PREVIOUS_MODE ) {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_VIEWPREV);
fprintf(stdout,"<input type=\"hidden\" name=\"VSET\" value=\"%d\" size=4>\n",g_vset);
} else {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_TRYSET);
}
fprintf(stdout,"<input type=\"submit\" value=\"Next Page\" >\n</form></TD>");
}
/* Previous Button */
if ( (!(g_num_questions_per_page==ALL_QUESTIONS)) && (g_start_question > 1)) {
fprintf(stdout,"<TD><form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
fprintf(stdout,"<input type=\"hidden\" name=\"STARTNUM\" value=\"%d\">\n",g_start_question-g_num_questions_per_page);
if (mode == VIEW_PREVIOUS_MODE ) {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_VIEWPREV);
fprintf(stdout,"<input type=\"hidden\" name=\"VSET\" value=\"%d\" size=4>\n",g_vset);
} else {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_TRYSET);
}
fprintf(stdout,"<input type=\"submit\" value=\"Previous Page\" >\n</form></TD>");
}
#endif
/* Goto Button */
if (!(g_num_questions_per_page==ALL_QUESTIONS)) {
int idx,numquest;
T_header header;
fprintf(stdout,"<TD><form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
fprintf(stdout,"<input type=\"submit\" value=\"Goto\" >");
fprintf(stdout,"<b>Problem:</b><input name=\"STARTNUM\" value=\"\" size=4>\n");
if (mode == VIEW_PREVIOUS_MODE ) {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_VIEWPREV);
fprintf(stdout,"<input type=\"hidden\" name=\"VSET\" value=\"%d\" size=4>\n",g_vset);
} else {
fprintf(stdout,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_TRYSET);
}
if (!capa_get_header(&header, g_login_set)) {
numquest=atoi(header.num_questions);
capa_mfree(header.weight);
capa_mfree(header.partial_credit);
for(idx=0;idx<numquest;idx++) {
preserve_last_answer(idx,1);
}
}
fprintf(stdout,"</form></TD>");
}
/*Discuss Button*/
sprintf(discussdir,"%s/discussion/%d",g_class_fullpath,g_login_set);
if ( access(discussdir,F_OK) == 0 ) {
fprintf(stdout,"<TD><form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capadiscuss\">",serverName,g_cgibin_path,g_cowner);
fprintf(stdout,"%s\n", buf);
fprintf(stdout,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
fprintf(stdout,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
fprintf(stdout,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
fprintf(stdout,"<input type=\"hidden\" name=\"SETID\" value=\"%d\">\n",g_login_set);
fprintf(stdout,"<input type=\"submit\" value=\"Discuss\" >\n</form></TD>");
}
fprintf(stdout,"\n</TR></TABLE>\n");
fflush(stdout);
}
void create_status_line(int mode,int question_cnt, T_entry* entry)
{
char buf[MAX_BUFFER_SIZE];
int idx,configResult,status_line_length;
configResult=read_capa_config("web_status_line_length",buf);
if (configResult != 0 && configResult != -1 ) {
if (sscanf(buf,"%d",&status_line_length)==0) {
status_line_length=question_cnt;
}
} else {
status_line_length=question_cnt;
}
append_stext("<TABLE cellpadding=0 cellspacing=0 border=0><TR>");
append_stext("<TD><b><u>Go to problem</u> </b></TD><TD></TD>");
for(idx=0; idx < status_line_length;idx++ ) {
sprintf(buf,"<TD ALIGN=center VALIGN=bottom>[%d]</TD>",idx+1);
append_stext(buf);
}
for(idx = 0; idx < question_cnt; idx++ ) {
if ( !(idx%status_line_length) ) {
sprintf(buf,"</TR><TR><TD ALIGN=left>%d-%d</TD><TD ALIGN=right>Status: </TD>",
idx+1,idx+status_line_length);
append_stext(buf);
}
if ((idx >= g_start_question-1) &&
(((g_num_questions_per_page == ALL_QUESTIONS)) ||
(idx < (g_start_question+g_num_questions_per_page-1)))) {
sprintf(buf,"<TD ALIGN=center VALIGN=bottom><A href=\"#P%d\">",idx+1);
} else {
sprintf(buf,"<TD ALIGN=center VALIGN=bottom>");
}
append_stext(buf);
if ( (mode == CHECK_ANSWER_MODE) && g_log_string[idx] == '-') {
if (g_inhibit_response && (entry->answers[idx]!='-')) {
sprintf(buf,"A");
} else {
sprintf(buf,"%c",entry->answers[idx]);
}
} else {
if (g_inhibit_response && (entry->answers[idx]!='-')) {
sprintf(buf,"<b>A</b>");
} else {
if ( mode == CHECK_ANSWER_MODE ) {
sprintf(buf,"<b>%c</b>",g_log_string[idx]);
} else {
sprintf(buf,"<b>%c</b>",entry->answers[idx]);
}
}
}
append_stext(buf);
if ((idx >= g_start_question-1) &&
(((g_num_questions_per_page == ALL_QUESTIONS)) ||
(idx < (g_start_question+g_num_questions_per_page-1)))) {
sprintf(buf,"</A></TD>");
} else {
sprintf(buf,"</TD>");
}
append_stext(buf);
}
append_stext("</TR></TABLE>\n");
}
/* -------------------------------- called by try set, view previous, check answer */
void
print_quizz(class_dir,c_owner,class,sn,pin,set,mode)
char *class_dir; char *c_owner;char *class;char *sn;int pin;int set;int mode;
{
extern int Parsemode_f;
extern char *StartText_p;
extern char *EndText_p;
Problem_t *first_prob, *prob_idx;
int result, question_idx, question_cnt, idx, view_assignment_after_due=1;
int q_leng, display_ans=1, configResult;
int view_assignments_after_due=1;
char buf[MAX_BUFFER_SIZE];
char class_fullpath[FILE_NAME_LENGTH];
T_entry entry;
T_header header;
long offset;
double a;
char cmp_ans[MAX_BUFFER_SIZE],date_str[DATE_BUFFER];
time_t curtime;
char *serverName;
char *c_ans;
serverName=getenv("SERVER_NAME");
if (!serverName) {
fprintf(stdout,"Enviroment variable SERVER_NAME not set.\n");
fprintf(stdout,"Unable to complete actions.\n");
return;
}
sprintf(class_fullpath,"%s/%s",class_dir,class);
/*
chdir(class_fullpath);
*/
#ifdef CGI_DBUG
fprintf(g_cgi,"enter print_quizz() %s, mode:%d\n",class_fullpath,mode); fflush(g_cgi);
#endif /* CGI_DBUG */
/* get configuration options */
configResult=read_capa_config("num_questions_per_page",buf);
if (configResult != 0 && configResult != -1 ) {
if (sscanf(buf,"%d",&g_num_questions_per_page)==0) {
g_num_questions_per_page=ALL_QUESTIONS;
}
} else {
g_num_questions_per_page=ALL_QUESTIONS;
}
view_assignments_after_due=capa_check_option(OPTION_VIEW_PROBLEMS_AFTER_DUE,
set,g_student_data.s_sec);
if (view_assignments_after_due < 0 ) view_assignments_after_due=1;
g_inhibit_response=capa_check_option(OPTION_INHIBIT_RESPONSE,set,g_student_data.s_sec);
if (g_inhibit_response < 0 ) g_inhibit_response=0;
#ifdef CGI_DBUG
fprintf(g_cgi,"Set %d, Section%d, ViewAssign? %d, Inhibit Resp? %d\n",set,
g_student_data.s_sec,view_assignments_after_due,
g_inhibit_response);
fflush(g_cgi);
#endif /* CGI_DBUG */
time(&curtime);
offset=capa_get_entry(&entry,sn,set); /* <-------- capa*() call ---- */
if( mode == VIEW_PREVIOUS_MODE ) {
if( view_assignment_after_due ) {
if( capa_check_date(CHECK_OPEN_DATE,g_student_number,
g_student_data.s_sec,set) < 0 ) {
append_qtext("This set is not yet open.\n");
return ;
}
} else {
if( (capa_check_date(CHECK_ANS_DATE,g_student_number,
g_student_data.s_sec,set) < 0) &&
(capa_check_date(CHECK_DUE_DATE,g_student_number,
g_student_data.s_sec,set) > 0) ) {
append_qtext("This set is not yet available to be viewed.\n");
return ;
}
}
if( capa_check_date(CHECK_ANS_DATE,g_student_number,
g_student_data.s_sec,set) < 0 ) {
display_ans = 0;
}
}
g_passdue = 0;
if( mode == CHECK_ANSWER_MODE ||
( (!view_assignment_after_due) && mode == TRY_SET_MODE)) {
if( capa_check_date(CHECK_DUE_DATE,g_student_number,
g_student_data.s_sec,set) > 0 ) {
capa_get_date(CHECK_DUE_DATE,g_student_number,
g_student_data.s_sec,set,date_str);
sprintf(buf,"SORRY, the due date was: %s\n",date_str);
append_qtext(buf);
g_passdue = 1;
}
}
if ((mode==CHECK_ANSWER_MODE) || (mode== TRY_SET_MODE))
capa_set_login_time(g_student_number,set);
capa_get_header(&header,set);
sscanf(header.num_questions,"%d",&question_cnt);
print_page_header(mode,question_cnt);
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE page header\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
if(offset < 0 ) offset = - offset;
Parsemode_f = HTML_MODE; /* WEB_MODE */
result = capa_parse(set, &first_prob, sn, &question_cnt,NULL); /* <-- capa*() call */
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE capa_parse() [%d], pass due=%d\n",result,g_passdue); fflush(g_cgi);
#endif /* CGI_DBUG */
if (StartText_p) printf(StartText_p);
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE Start Text\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
if ( result != 0 ) {
if( !g_passdue ) {
append_qtext("<FORM NAME=\"CAPA\" method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,
g_cgibin_path,c_owner);
append_qtext(buf);
sprintf(buf,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",class); append_qtext(buf);
sprintf(buf,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",sn); append_qtext(buf);
sprintf(buf,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",pin); append_qtext(buf);
sprintf(buf,"<input type=\"hidden\" name=\"SET\" value=\"%d\">\n",set); append_qtext(buf);
sprintf(buf,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_CHECKANS); append_qtext(buf);
sprintf(buf,"<input type=\"hidden\" name=\"STARTNUM\" value=\"%d\">\n",g_start_question); append_qtext(buf);
append_qtext("\n<OL>\n");
}
for(idx=0;idx<question_cnt;idx++) { /* prepare log string and new database entry */
g_new_answerdb[idx] = entry.answers[idx];
g_log_string[idx] = '-';
sscanf(entry.tries + 3*idx,"%d,",&(g_tried[idx]) );
}
g_new_answerdb[question_cnt]=0; g_log_string[question_cnt]=0;
prob_idx = first_prob;
for( question_idx = 0; question_idx < question_cnt;
question_idx++,prob_idx = prob_idx->next ) {
#ifdef CGI_DBUG
fprintf(g_cgi,"quetion_idx: %d, g_start_question:%d, g_num_que: %d\n",
question_idx,g_start_question,g_num_questions_per_page); fflush(g_cgi);
#endif /* CGI_DBUG */
if ((question_idx < g_start_question-1)
||
(((!(g_num_questions_per_page == ALL_QUESTIONS))
&&
(question_idx >= (g_start_question+g_num_questions_per_page-1))))) {
preserve_last_answer(question_idx,0);
continue;
}
if( !g_passdue ) {
sprintf(buf,"<A NAME=\"P%d\"></A>",question_idx+1); append_qtext(buf);
/* if (!((question_idx == (g_start_question-1)) || (question_idx == 0))) {
append_qtext("<A href=\"#TOP\">Top</A>");
sprintf(buf," <A href=\"#P%d\">Next</A>",question_idx+2); append_qtext(buf);
}*/
if (prob_idx->question != NULL) {
q_leng = strlen(prob_idx->question);
if ( !prob_idx->show_br ) {
append_qtext(prob_idx->question);
} else {
append_qtext_addbr(prob_idx->question);
/*
for(idx=0;idx<q_leng;idx++) {
if ( g_qchar_cnt+2 > g_qsize-2 ) {
char *temp_text;
g_qsize=(g_qchar_cnt+2)*2;
temp_text=capa_malloc(g_qsize,sizeof(char));
strncpy(temp_text,g_question_txt,g_qsize);
capa_mfree(g_question_txt);
g_question_txt=temp_text;
}
g_question_txt[g_qchar_cnt]=prob_idx->question[idx];
g_qchar_cnt++;
if(prob_idx->question[idx] == '\n' ) {
append_qtext("<br>\n");
}
}
*/
}
}
}
if(mode == VIEW_PREVIOUS_MODE) { /* VIEW_PREVIOUS_MODE */
/*
if( prob_idx->ans_type == ANSWER_IS_FLOAT ) {
a = (double)atof(prob_idx->answer);
sprintf(cmp_ans,prob_idx->ans_fmt, a);
} else {
if ( prob_idx->ans_type == ANSWER_IS_SUBJECTIVE) {
strcpy(cmp_ans,"Subjective Answer");
} else {
if (prob_idx->answer) {
strcpy(cmp_ans,prob_idx->answer);
} else {
strcpy(cmp_ans,"No Answer");
}
}
}
if( prob_idx->ans_unit ) {
sprintf(buf,"<p><tt><b>Answer:</b> %s %s</tt><br>\n",cmp_ans, prob_idx->unit_str);
} else {
sprintf(buf,"<p><tt><b>Answer:</b> %s</tt><br>\n",cmp_ans);
}
*/
if( display_ans ) {
c_ans=answers_string(ANSWER_STRING_MODE, prob_idx);
sprintf(buf,"<p><tt><b>Answer:</b> %s</tt><br>",c_ans);
append_qtext(buf);
capa_mfree(c_ans);
if ( prob_idx->explain) {
sprintf(buf,"<p><b>Explanation: </b>\n<p>%s<br>\n",prob_idx->explain);
append_qtext(buf);
}
}
} else { /* could be TRY_SET_MODE, CHECK_ANSWER_MODE */
if( g_passdue ) {
get_response(header.partial_credit[question_idx],entry.answers[question_idx],question_idx,prob_idx);
}else{
if (g_inhibit_response) {
print_inhibited_response(header.partial_credit[question_idx],entry.answers[question_idx],question_idx,prob_idx);
} else {
print_response(header.partial_credit[question_idx],entry.answers[question_idx],question_idx,prob_idx);
}
append_qtext("<br>\n");
if( (g_tried[question_idx] >= prob_idx->show_hint) ||
(entry.answers[question_idx]=='Y') ||
(entry.answers[question_idx]=='y')) {
if( prob_idx->hint ) {
sprintf(buf,"<p><B>Hint: </B>%s\n<br>\n", prob_idx->hint);
append_qtext(buf);
}
}
}
}
} /* ------------------------------------- end displaying each problem */
append_qtext("\n</OL>\n");
if( EndText_p ) append_qtext(EndText_p);
free_problems(first_prob);
free_units();
#ifdef CGI_DBUG
fprintf(g_cgi,"End display each problem\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
if( mode == CHECK_ANSWER_MODE ) { /* update the record database */
if( !g_passdue ) {
for(idx=0;idx<question_cnt;idx++){
if( g_new_answerdb[idx] != entry.answers[idx]) {
entry.answers[idx] = g_new_answerdb[idx];
}
if(g_tried[idx] < 10 ) {
entry.tries[3*idx] = ' ';
entry.tries[3*idx+1] = g_tried[idx] + '0';
if(idx < question_cnt-1) entry.tries[3*idx+2] = ',';
} else {
entry.tries[3*idx] = (int)(g_tried[idx]/10) + '0';
entry.tries[3*idx+1] = (g_tried[idx] % 10) + '0';
if(idx < question_cnt-1) entry.tries[3*idx+2] = ',';
}
}
capa_set_entry(&entry,sn,set,offset); /* <-------- capa*() call */
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE set db entry\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
create_status_line(mode,question_cnt,&entry);
}
if (w_log_attempt(g_student_number,set,g_log_string) == -1 ) {
fprintf(stdout,"<BOLD>Unable to log attempt. Please notify instructor.</BOLD>\n");
}
}
#ifdef CGI_DBUG
fprintf(g_cgi,"DONE check answer mode\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
if( (mode == TRY_SET_MODE && !g_passdue) ||
mode == VIEW_PREVIOUS_MODE) {
create_status_line(mode,question_cnt,&entry);
}
if( !g_passdue ) {
sprintf(buf,"</ul></form>\n"); append_qtext(buf);
}
}
}
/*if the assignment is passedue we come here to get what the answer was just in case*/
void
get_response(char pcr,char u_db,int q_idx,Problem_t *p)
{
if( pcr == '0' || p->ans_type==ANSWER_IS_SUBJECTIVE ) { /* not hand-graded question */
switch(u_db) { /* what's from the user record */
case 'Y': break;
case 'y': break;
case '-':
if(g_stu_ans_pp[q_idx+1] != NULL ) log_user_ans(q_idx,p);
break;
case 'E':
case 'e': break;
case 'n': break;
case 'N':
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
if(g_stu_ans_pp[q_idx+1] != NULL ) log_user_ans(q_idx,p);
break;
default:
break;
}
}
}
void display_last_answer(int q_idx)
{
char buf[MAX_BUFFER_SIZE];
StudentAnswer_t *sa_p;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter display_last_answer() [%d]\n",q_idx); fflush(g_cgi);
#endif /* CGI_DBUG */
if(g_stu_ans_pp[q_idx+1] != NULL) {
sa_p=g_stu_ans_pp[q_idx+1];
} else {
if (g_last_ans_pp[q_idx+1] != NULL) {
sa_p=g_last_ans_pp[q_idx+1];
} else {
return;
}
}
if (sa_p->a_next == NULL) {
sprintf(buf,"<input type=\"hidden\" name=\"LAST%02d\" value=\"%s\">\n",
q_idx+1,sa_p->a_str);
append_qtext(buf);
sprintf(buf," <b>Last Answer:</b> %s\n",sa_p->a_str);
append_qtext(buf);
} else {
while(sa_p) {
sprintf(buf,"<input type=\"hidden\" name=\"LAST%02d,%02d\" value=\"%s\">\n",
q_idx+1,sa_p->a_idx,sa_p->a_str);
append_qtext(buf);
sprintf(buf," <b>Last Answer %d:</b> %s\n",sa_p->a_idx,sa_p->a_str);
append_qtext(buf);
sa_p=sa_p->a_next;
}
}
}
void preserve_last_answer(int q_idx,int print)
{
char buf[MAX_BUFFER_SIZE];
StudentAnswer_t *sa_p;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter preserve_last_answer() [%d]\n",q_idx); fflush(g_cgi);
#endif /* CGI_DBUG */
if(g_stu_ans_pp[q_idx+1] != NULL) {
sa_p=g_stu_ans_pp[q_idx+1];
} else {
if (g_last_ans_pp[q_idx+1] != NULL) {
sa_p=g_last_ans_pp[q_idx+1];
} else {
return;
}
}
if (sa_p->a_next == NULL) {
sprintf(buf,"<input type=\"hidden\" name=\"LAST%02d\" value=\"%s\">\n",
q_idx+1,sa_p->a_str);
if (print) printf(buf); else append_qtext(buf);
} else {
while(sa_p) {
sprintf(buf,"<input type=\"hidden\" name=\"LAST%02d,%02d\" value=\"%s\">\n",
q_idx+1,sa_p->a_idx,sa_p->a_str);
if (print) printf(buf); else append_qtext(buf);
sa_p=sa_p->a_next;
}
}
}
void display_last_subjective(int q_idx)
{
char *buf;
char *answer;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter display_last_subjective() [%d]\n",q_idx); fflush(g_cgi);
#endif /* CGI_DBUG */
answer=capa_get_subjective(g_login_set,q_idx+1,g_student_number);
if (answer==NULL) return;
#ifdef CGI_DBUG
fprintf(g_cgi,"Found answer %s\n",answer); fflush(g_cgi);
#endif /* CGI_DBUG */
buf=capa_malloc(MAX_BUFFER_SIZE+strlen(answer),1);
/* don't need to stick in a last since we always get it from the files */
/* sprintf(buf,"<input type=\"hidden\" name=\"LAST%02d\" value=\"%s\">\n",q_idx+1,answer);*/
append_qtext(buf);
append_qtext("<b>Current Submission:</b><br>\n");
append_qtext("<TABLE BORDER=1 CELLSPACING=0>\n<TR><TD>\n");
append_qtext("<PRE>");
append_qtext(answer);
append_qtext("</PRE>");
append_qtext("</TD></TR></TABLE>\n");
capa_mfree(buf);
capa_mfree(answer);
}
void create_answer_area(Problem_t *p,int q_idx)
{
int ii=0;
char buf[MAX_BUFFER_SIZE];
AnswerInfo_t *ai;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter create_answer_area() [%d]\n",q_idx); fflush(g_cgi);
#endif /* CGI_DBUG */
if ( p->ans_type==ANSWER_IS_SUBJECTIVE ) {
display_last_subjective(q_idx);
}
if ( p->show_ans_box ) {
if ( p->ans_op == ANS_AND ) {
if (p->ans_type == ANSWER_IS_FORMULA) {
/* first answer is stored in p, the rest are linked off of p->ans_list */
sprintf(buf,"<p><B>Answer %d of %d:</B><input size=80 name=\"INPUT%02d,%02d\" value=\"\">\n",ii+1,p->ans_cnt,q_idx+1,ii+1);
} else {
sprintf(buf,"<p><B>Answer %d of %d:</B><input name=\"INPUT%02d,%02d\" value=\"\">\n",ii+1,p->ans_cnt,q_idx+1,ii+1);
}
append_qtext(buf);
for(ii=1, ai=p->ans_list;ii<p->ans_cnt;ai=ai->ans_next,ii++) {
if (ai->ans_type == ANSWER_IS_FORMULA) {
sprintf(buf,"<p><B>Answer %d of %d:</B><input size=80 name=\"INPUT%02d,%02d\" value=\"\">\n",ii+1,p->ans_cnt,q_idx+1,ii+1);
} else {
sprintf(buf,"<p><B>Answer %d of %d:</B><input name=\"INPUT%02d,%02d\" value=\"\">\n",ii+1,p->ans_cnt,q_idx+1,ii+1);
}
append_qtext(buf);
}
} else { /* single answer, or /OR answers, or subjective answer */
if (p->ans_type == ANSWER_IS_SUBJECTIVE ) {
sprintf(buf,"<p><B>Answer:</B><br><TEXTAREA name=\"INPUT%02d\" rows=\"15\" cols=\"80\"></TEXTAREA>\n",q_idx+1);
} else {
if (p->ans_type == ANSWER_IS_FORMULA) {
sprintf(buf,"<p><B>Answer:</B><input size=80 name=\"INPUT%02d\" value=\"\">\n",q_idx+1);
} else {
sprintf(buf,"<p><B>Answer:</B><input name=\"INPUT%02d\" value=\"\">\n",q_idx+1);
}
}
append_qtext(buf);
}
}
append_qtext("<input type=\"submit\" value=\"Submit All Answers\" >\n");
if ( p->ans_type!=ANSWER_IS_SUBJECTIVE ) {
display_last_answer(q_idx);
}
}
void
print_response(char pcr,char u_db,int q_idx,Problem_t *p)
{
int a_tpe;
char *c_ans,*response,*answered="Answered",*nycorrect="Not yet correct";
int t_tpe;
double tol;
int sig_l;
int sig_u;
char *a_fmt, *c_answer_str;
int tries;
char buf[MAX_BUFFER_SIZE];
a_tpe = p->ans_type;
c_ans = p->answer;
t_tpe = p->tol_type;
tol = p->tolerance;
sig_l = p->sig_lbound;
sig_u = p->sig_ubound;
a_fmt = p->ans_fmt;
tries = p->tries;
response=nycorrect;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter print_response() [%c]\n",u_db); fflush(g_cgi);
#endif /* CGI_DBUG */
if( pcr == '0' || a_tpe==ANSWER_IS_SUBJECTIVE ) { /* not hand-graded question */
switch(u_db) { /* this is from the user record */
case 'Y':
c_answer_str = answers_string(ANSWER_STRING_MODE, p);
sprintf(buf,"<p><tt>Correct, computer gets: %s</tt>\n", c_answer_str);
append_qtext(buf);
capa_mfree((char *)c_answer_str);
break;
case 'y':
append_qtext("<p><tt>Hand-graded Correct</tt>\n");
break;
case '-':
if(g_stu_ans_pp[q_idx+1] == NULL ) {
create_answer_area(p,q_idx);
} else {
check_user_ans(q_idx,p);
}
break;
case 'E':
case 'e': append_qtext("<p><tt>Excused</tt>\n"); break;
case 'n': append_qtext("<p><tt>Hand-graded Incorrect</tt>\n"); break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
response=answered;
case 'N':
if(g_stu_ans_pp[q_idx+1] == NULL ) {
if( g_tried[q_idx] < tries) {
create_answer_area(p,q_idx);
if( tries - g_tried[q_idx] == 1) {
sprintf(buf,"<br><tt>%s, ONE try left!!</tt>\n",response);
}else{
sprintf(buf,"<br><tt>%s, tries %d/%d</tt>\n",response,
g_tried[q_idx],tries);
}
append_qtext(buf);
}else{
if (p->ans_type==ANSWER_IS_SUBJECTIVE)
display_last_answer(q_idx);
else
display_last_subjective(q_idx);
append_qtext("<br><tt>No more tries.</tt>\n");
}
} else { /* answering this question */
if( g_tried[q_idx] < tries) {
check_user_ans(q_idx,p);
} else {
if (p->ans_type==ANSWER_IS_SUBJECTIVE)
display_last_answer(q_idx);
else
display_last_subjective(q_idx);
append_qtext("<br><tt>No more tries.</tt>\n");
}
}
break;
}
} else {
append_qtext("<p><tt>Question to be Graded Manually.</tt>\n");
}
}
void
print_inhibited_response(char pcr,char u_db,int q_idx,Problem_t *p)
{
int a_tpe;
char *c_ans;
int t_tpe;
double tol;
int sig_l;
int sig_u;
char *a_fmt;
int tries;
char buf[MAX_BUFFER_SIZE];
a_tpe = p->ans_type;
c_ans = p->answer;
t_tpe = p->tol_type;
tol = p->tolerance;
sig_l = p->sig_lbound;
sig_u = p->sig_ubound;
a_fmt = p->ans_fmt;
tries = p->tries;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter print_inhibited_response() [%c]\n",u_db); fflush(g_cgi);
#endif /* CGI_DBUG */
if( pcr == '0' || a_tpe==ANSWER_IS_SUBJECTIVE ) { /* not hand-graded question */
switch(u_db) { /* this is from the user record */
case '-':
if(g_stu_ans_pp[q_idx+1] == NULL ) {
create_answer_area(p,q_idx);
} else {
check_inhibited_user_ans(q_idx,p);
}
break;
case 'Y': case 'y':
case 'E': case 'e':
case 'n': case 'N':
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
if(g_stu_ans_pp[q_idx+1] == NULL ) {
if( g_tried[q_idx] < tries) {
create_answer_area(p,q_idx);
if( tries - g_tried[q_idx] == 1) {
append_qtext("<br><tt>Answered, ONE try left!!</tt>\n");
}else{
sprintf(buf,"<br><tt>Answered, tries %d/%d</tt>\n",g_tried[q_idx],tries);
append_qtext(buf);
}
}else{
if (p->ans_type==ANSWER_IS_SUBJECTIVE)
display_last_answer(q_idx);
else
display_last_subjective(q_idx);
append_qtext("<br><tt>Answered,No more tries.</tt>\n");
}
} else { /* answering this question */
if( g_tried[q_idx] < tries) {
check_inhibited_user_ans(q_idx,p);
} else {
if (p->ans_type==ANSWER_IS_SUBJECTIVE)
display_last_answer(q_idx);
else
display_last_subjective(q_idx);
append_qtext("<br><tt>Answered, No more tries.</tt>\n");
}
}
break;
}
} else {
append_qtext("<p><tt>Question to be Graded Manually.</tt>\n");
}
}
/* returns a -1 if there were not enough answers, otherwise the number of responses
for the question is returned
!!!!!AS A SIDEEFFECT IT ALSO CROPS ANSWERS TO ANSWER_STRING_LENG!!!!!!!
*/
int gather_answers(char ***ans,int q_idx,Problem_t *p)
{
int cnt;
if(p->ans_op==ANS_AND) {
int i; StudentAnswer_t *sa_p;
*ans=(char**)capa_malloc(p->ans_cnt,sizeof(char*));
sa_p= g_stu_ans_pp[q_idx+1];
for(i=0;((i<p->ans_cnt)&&(sa_p));i++){
ans[0][i]=sa_p->a_str;
if ((strlen(ans[0][i])+1) > ANSWER_STRING_LENG) ans[0][i][ANSWER_STRING_LENG]='\0';
sa_p=sa_p->a_next;
}
cnt=p->ans_cnt;
if (i<p->ans_cnt) return -1;
} else {
*ans=(char**)capa_malloc(p->ans_cnt,sizeof(char*));
ans[0][0]=g_stu_ans_pp[q_idx+1]->a_str;
if ((strlen(ans[0][0])+1) > ANSWER_STRING_LENG) ans[0][0][ANSWER_STRING_LENG]='\0';
cnt=1;
}
return cnt;
}
/*logging user's answer when it is passed due.*/
void
log_user_ans(int q_idx,Problem_t *p)
{
char **ans;
char *error;
int cnt;
if (p->ans_type==ANSWER_IS_SUBJECTIVE) {
/*capa_set_subjective(g_login_set,q_idx+1,g_student_number,
g_stu_ans_pp[q_idx+1]->a_str);*/
} else {
if (-1 != (cnt=gather_answers(&ans,q_idx,p))) {
switch( capa_check_answers(p,ans,cnt,&error) ) {
case EXACT_ANS: g_log_string[q_idx]='Y'; break;
case APPROX_ANS: g_log_string[q_idx]='Y'; break;
case SIG_FAIL: g_log_string[q_idx]='S'; capa_mfree(error); break;
case UNIT_FAIL: g_log_string[q_idx]='U'; capa_mfree(error); break;
case UNIT_NOTNEEDED: g_log_string[q_idx]='U'; capa_mfree(error); break;
case NO_UNIT: g_log_string[q_idx]='u'; break;
case BAD_FORMULA: g_log_string[q_idx]='F'; break;
case INCORRECT: g_log_string[q_idx]='N'; break;
case WANTED_NUMERIC: g_log_string[q_idx]='s'; break;
}
}
}
}
void submit_subjective(int q_idx,Problem_t *p)
{
char buf[MAX_BUFFER_SIZE];
if (capa_set_subjective(g_login_set,q_idx+1,g_student_number,
g_stu_ans_pp[q_idx+1]->a_str)<0){
sprintf(buf,"<p><tt>Falied to record last submission.</tt><br>\n");
g_tried[q_idx]--;
} else {
sprintf(buf,"<p><tt>Current submission recorded.</tt><br>\n");
g_new_answerdb[q_idx] = '0';
g_log_string[q_idx]='A';
}
append_qtext(buf);
if (g_tried[q_idx]<p->tries) {
create_answer_area(p,q_idx);
if( p->tries - g_tried[q_idx] == 1) {
append_qtext("<br><tt>ONE try left</tt>\n");
}else{
sprintf(buf,"<br><tt>tries %d/%d</tt>\n",g_tried[q_idx],p->tries);
append_qtext(buf);
}
}else{
display_last_answer(q_idx);
append_qtext("<br><tt>No more tries.</tt>\n");
}
}
void
check_user_ans(int q_idx,Problem_t *p)
{
int a_tpe,cnt;
char *c_ans,**ans;
int t_tpe;
double tol;
int sig_l;
int sig_u;
char *a_fmt;
int tries;
char buf[MAX_BUFFER_SIZE];
char *error;
a_tpe = p->ans_type;
t_tpe = p->tol_type;
tol = p->tolerance;
sig_l = p->sig_lbound;
sig_u = p->sig_ubound;
a_fmt = p->ans_fmt;
tries = p->tries;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter check_user_ans() anstype=%d\n",a_tpe); fflush(g_cgi);
#endif /* CGI_DBUG */
g_tried[q_idx]++;
#ifdef CGI_DBUG
fprintf(g_cgi,"Call capa_check_answer() with [%s]\n",g_stu_ans_pp[q_idx+1]->a_str); fflush(g_cgi);
#endif /* CGI_DBUG */
if (a_tpe==ANSWER_IS_SUBJECTIVE) {
submit_subjective(q_idx,p);
return;
}
cnt=gather_answers(&ans,q_idx,p);
if (cnt == -1) {
g_tried[q_idx]--;
create_answer_area(p,q_idx);
if( (tries - g_tried[q_idx]) == 1 ) {
append_qtext("<br><tt>Not all answers submitted, ONE try left!!</tt>\n");
}else{
sprintf(buf,"<br><tt>Not all answers submitted, tries %d/%d.</tt>\n",
g_tried[q_idx],tries);
append_qtext(buf);
}
return;
}
switch( capa_check_answers(p,ans,cnt,&error) ) {
case EXACT_ANS:
case APPROX_ANS:
c_ans=answers_string(ANSWER_STRING_MODE, p);
sprintf(buf,"<p><tt>Yes, Computer gets: %s</tt>\n", c_ans);
append_qtext(buf);
g_new_answerdb[q_idx] = 'Y';
g_log_string[q_idx]='Y';
capa_mfree(c_ans);
break;
case WANTED_NUMERIC:
create_answer_area(p,q_idx);
g_tried[q_idx]--; /* don't count as a try */
sprintf(buf,"<br><tt>This question expects a numeric answer, tries %d/%d.</tt>\n",g_tried[q_idx],tries);
append_qtext(buf);
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='s';
break;
case SIG_FAIL:
create_answer_area(p,q_idx);
g_tried[q_idx]--; /* don't count as a try */
sprintf(buf,"<br><tt>Please adjust significant figures, you provided %s significant figures, tries %d/%d.</tt>\n",error,g_tried[q_idx],tries);
append_qtext(buf);
capa_mfree(error);
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='S';
break;
case UNIT_FAIL:
create_answer_area(p,q_idx);
g_tried[q_idx]--; /* don't count as a try */
sprintf(buf,"<br><tt>Units incorrect, Computer reads units as %s, tries %d/%d.</tt>\n",error,g_tried[q_idx],tries);
capa_mfree(error);
append_qtext(buf);
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='U';
break;
case UNIT_NOTNEEDED:
create_answer_area(p,q_idx);
g_tried[q_idx]--; /* don't count as a try */
if(tries > 0) {
sprintf(buf,"<br><tt>Only a number required, Computer reads units of %s, tries %d/%d.</tt>\n",error,g_tried[q_idx],tries);
append_qtext(buf);
}
capa_mfree(error);
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='U';
break;
case NO_UNIT:
create_answer_area(p,q_idx);
g_tried[q_idx]--; /* don't count as a try */
sprintf(buf,"<br><tt>Units required, tries %d/%d.</tt>\n",g_tried[q_idx],tries);
append_qtext(buf);
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='u';
break;
case BAD_FORMULA:
create_answer_area(p,q_idx);
g_tried[q_idx]--; /* don't count as a try */
sprintf(buf,"<br><tt>Unable to understand formula, tries %d/%d.</tt>\n",g_tried[q_idx],tries);
append_qtext(buf);
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='F';
break;
case INCORRECT:
if( g_tried[q_idx] < tries ) {
create_answer_area(p,q_idx);
if( (tries - g_tried[q_idx]) == 1 ) {
append_qtext("<br><tt>Incorrect, ONE try left!!</tt>\n");
}else{
sprintf(buf,"<br><tt>Incorrect, tries %d/%d.</tt>\n",g_tried[q_idx],tries);
append_qtext(buf);
}
} else {
display_last_answer(q_idx);
append_qtext("<br><tt>Incorrect, no more tries.</tt>\n");
}
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='N';
break;
}
}
void
check_inhibited_user_ans(int q_idx,Problem_t *p)
{
int a_tpe,cnt;
char *c_ans,**ans;
int t_tpe;
double tol;
int sig_l;
int sig_u;
char *a_fmt;
int tries;
char buf[MAX_BUFFER_SIZE];
char *error;
a_tpe = p->ans_type;
c_ans = p->answer;
t_tpe = p->tol_type;
tol = p->tolerance;
sig_l = p->sig_lbound;
sig_u = p->sig_ubound;
a_fmt = p->ans_fmt;
tries = p->tries;
#ifdef CGI_DBUG
fprintf(g_cgi,"Enter check_inhibited_user_ans() anstype=%d\n",a_tpe); fflush(g_cgi);
#endif /* CGI_DBUG */
g_tried[q_idx]++;
#ifdef CGI_DBUG
fprintf(g_cgi,"Call capa_check_answer() with [%s]\n",g_stu_ans_pp[q_idx+1]->a_str);
fflush(g_cgi);
#endif /* CGI_DBUG */
if (a_tpe==ANSWER_IS_SUBJECTIVE) {
submit_subjective(q_idx,p);
return;
}
cnt=gather_answers(&ans,q_idx,p);
if (cnt == -1) {
g_tried[q_idx]--;
create_answer_area(p,q_idx);
if( (tries - g_tried[q_idx]) == 1 ) {
append_qtext("<br><tt>Not all answers submitted, ONE try left!!</tt>\n");
}else{
sprintf(buf,"<br><tt>Not all answers submitted, tries %d/%d.</tt>\n",
g_tried[q_idx],tries);
append_qtext(buf);
}
return;
}
switch( capa_check_answers(p,ans,cnt,&error) ) {
case EXACT_ANS:
case APPROX_ANS:
g_new_answerdb[q_idx] = 'Y';
g_log_string[q_idx]='Y';
break;
case WANTED_NUMERIC:
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='s';
break;
case SIG_FAIL:
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='S';
capa_mfree(error);
break;
case UNIT_FAIL:
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='U';
capa_mfree(error);
break;
case UNIT_NOTNEEDED:
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='U';
capa_mfree(error);
break;
case NO_UNIT:
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='u';
break;
case BAD_FORMULA:
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='F';
break;
case INCORRECT:
g_new_answerdb[q_idx] = 'N';
g_log_string[q_idx]='N';
break;
}
if( g_tried[q_idx] < tries ) {
create_answer_area(p,q_idx);
if( (tries - g_tried[q_idx]) == 1 ) {
append_qtext("<br><tt>Answered, ONE try left!!</tt>\n");
}else{
sprintf(buf,"<br><tt>Answered, tries %d/%d.</tt>\n",g_tried[q_idx],tries);
append_qtext(buf);
}
} else {
display_last_answer(q_idx);
append_qtext("<br><tt>Answered, no more tries.</tt>\n");
}
}
void /* RETURNS: (nothing) */
print_summary(class_dir,class,student_number,pin,set)
char *class_dir;char *class;char *student_number;int pin;int set;
{ /* LOCAL VARIABLES: */
int set_idx, /* Set counter */
i, /* Question counter */
set_score, /* Score on a set */
term_score=0, /* Total points received */
term_valid=0, /* Total points possible */
result,
tot_num_sets=0;
T_entry entry; /* Database entry for a set */
char buf[MAX_BUFFER_SIZE]; /* Output line buffer */
char buf2[MAX_BUFFER_SIZE]; /* Output line buffer */
T_header header; /* Problem set header */
int question_cnt,valid_wgt, rate,configResult,
status_line_length=DEFAULT_STATUS_LINE_LENGTH,row;
char class_fullpath[ONE_K],*serverName;
serverName=getenv("SERVER_NAME");
if (!serverName) {
fprintf(stdout,"Enviroment variable SERVER_NAME not set.\n");
fprintf(stdout,"Unable to complete actions.\n");
return;
}
printf("<!--print_summary-->");
sprintf(class_fullpath,"%s/%s",class_dir,class);
chdir(class_fullpath);
configResult=read_capa_config("web_status_line_length",buf);
if (configResult != 0 && configResult != -1 ) {
if (sscanf(buf,"%d",&status_line_length)==0) {
status_line_length=DEFAULT_STATUS_LINE_LENGTH;
}
} else {
status_line_length=DEFAULT_STATUS_LINE_LENGTH;
}
printf("<TABLE>\n<TR><TD></TD>\n");
for(i=0;i<status_line_length;i++) {
printf("<TD align=center valign=bottom>%d</TD>\n",i+1);
}
printf("</TR>");
for (set_idx=1; set_idx<=set; set_idx++) {
g_inhibit_response=capa_check_option(OPTION_INHIBIT_RESPONSE,set_idx,
g_student_data.s_sec);
if (g_inhibit_response > 0) {
printf("<!-- Set %d is inhibited -->\n",set_idx);
continue;
}
if ( capa_check_date(CHECK_OPEN_DATE,g_student_number,
g_student_data.s_sec,set_idx) < 0 ){
printf("<!-- Set %d is not open -->\n",set_idx);
continue;
}
if (capa_get_header(&header,set_idx)) return;
tot_num_sets++;
capa_get_entry(&entry,student_number,set_idx);
sscanf(header.num_questions,"%d", &(question_cnt) );
valid_wgt = 0; set_score = 0;
header.weight[question_cnt] = '\0';
header.partial_credit[question_cnt] = '\0';
for (i=0; i<question_cnt; i++) {
valid_wgt += (header.weight[i] - '0');
if((entry.answers[i]=='Y') || (entry.answers[i]=='y'))
set_score += (header.weight[i]-'0');
if((entry.answers[i]=='E') || (entry.answers[i]=='e'))
valid_wgt -= (header.weight[i] - '0');
if((entry.answers[i]>='0') && (entry.answers[i]<='9'))
set_score += (entry.answers[i] - '0');
}
term_valid += valid_wgt;
term_score += set_score;
if( valid_wgt != 0 ) {
rate = 100*set_score / valid_wgt;
printf("<TR><TD nowrap align=center valign=bottom>set <B>%d</B>, %d/%d(%d %%) </TD>",set_idx,set_score,valid_wgt,rate);
} else {
printf("<TR><TD nowrap align=center valign=bottom>set <B>%d</B>, 0/0(0 %%) </TD>",set_idx);
}
for(row=0;row<=(question_cnt/status_line_length);row++) {
for(i=(row*status_line_length);
((i<question_cnt)&&(i<((row+1)*status_line_length))); i++) {
if (i != 0 && (!(i%status_line_length))) { printf("</TR><TD></TD>"); }
printf("<TD align=center valign=bottom><tt>%c</tt></TD>\n",entry.answers[i]);
}
printf("</TR>\n<TR><TD></TD>");
for(i=(row*status_line_length);
((i<question_cnt)&&(i<((row+1)*status_line_length))); i++) {
if (i != 0 && (!(i%status_line_length))) { printf("</TR><TD></TD>"); }
printf("<TD align=center valign=bottom><tt>%c</tt></TD>\n",header.weight[i]);
}
}
printf("</TR>");
capa_mfree(header.weight);
capa_mfree(header.partial_credit);
}
printf("\n</TABLE>\n<hr>\n");
/* SHOW TOTALS */
/* if capalogin_show_summary_score is set to none don't show it */
if (term_valid > 0) {
sprintf(buf,"%d sets, total = %3d/%3d (%d%%)\n", tot_num_sets, term_score, term_valid, 100*term_score/term_valid);
} else {
sprintf(buf,"%d sets, total = %3d/%3d\n", tot_num_sets, term_score, term_valid);
}
result=read_capa_config("capalogin_show_summary_score",buf2);
if (result != 0 && result != -1) {
if (strcasecmp(buf2,"none")==0) {
} else {
printf("%s",buf);
}
} else {
printf("%s",buf);
}
printf("<TABLE cellpadding=0 cellspacing=0 border=0>\n<TR><TD>");
printf("<form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
printf("%s\n", buf);
printf("<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
printf("<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
printf("<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
printf("<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_CHECKIN);
printf("<input type=\"submit\" value=\"Main menu\" ></form></TD>\n");
printf("<TD><form method=\"get\" action=\"http://%s/CAPA/class.html\">",serverName);
printf("<input type=\"button\" value=\"Exit\" onclick=\"window.close()\"></form></TD>");
printf("\n</TABLE>\n");
}
void
process_mode(int mode) {
#ifdef CGI_DBUG
fprintf(g_cgi,"entered process_mode[%d]\n",mode); fflush(g_cgi);
#endif /* CGI_DBUG */
g_qchar_cnt=g_schar_cnt=0;
g_qsize=TEXT_BUF_SIZE*sizeof(char);
g_ssize=STATUS_BUF_SIZE*sizeof(char);
g_question_txt=capa_malloc(TEXT_BUF_SIZE,sizeof(char));
g_status_txt =capa_malloc(STATUS_BUF_SIZE,sizeof(char));
#ifdef CGI_DBUG
fprintf(g_cgi,"alloced everything\n"); fflush(g_cgi);
#endif /* CGI_DBUG */
if( mode == VIEW_PREVIOUS_MODE ) {
print_quizz(g_cpath,g_cowner,g_class_name,g_student_number, g_entered_pin, g_vset,mode);
} else if( mode == TRY_SET_MODE ) {
print_quizz(g_cpath,g_cowner,g_class_name,g_student_number, g_entered_pin, g_login_set,mode);
} else {
print_quizz(g_cpath,g_cowner,g_class_name,g_student_number,g_entered_pin,g_login_set,CHECK_ANSWER_MODE);
}
g_status_txt[g_schar_cnt]=0;
g_question_txt[g_qchar_cnt]=0;
if( g_schar_cnt != 0 ) {
fprintf(stdout,"%s",g_status_txt);
#ifdef CGI_DBUG
fprintf(g_cgi,"print status [%s]\n",g_status_txt); fflush(g_cgi);
#endif /* CGI_DBUG */
}
if( g_qchar_cnt != 0) {
fprintf(stdout,"%s",g_question_txt);
#ifdef CGI_DBUG
fprintf(g_cgi,"print question [%s]\n",g_question_txt); fflush(g_cgi);
#endif /* CGI_DBUG */
}
if( g_schar_cnt != 0 ) {
fprintf(stdout,"%s",g_status_txt);
}
fflush(stdout);
capa_mfree(g_status_txt);
capa_mfree(g_question_txt);
}
/* mode could be exam summary, show or not show percentage */
/* quiz summary, show or not show percentage */
void
process_summary(int mode)
{
int outcome;
int i, len;
char *c_name;
char c_path[512];
outcome = check_exam_quiz_path();
if( (mode == M_EXAMSUMM) && (outcome & 1) ) { /* exam summary */
c_name = rindex(g_exam_path,'/');
c_name++;
i = strlen(c_name);
len = strlen(g_exam_path) - i - 1;
for(i=0;i<len;i++) {
c_path[i]=g_exam_path[i];
}
c_path[len]=0;
print_summary(c_path,c_name,g_student_number, g_entered_pin, g_exam_set);
}
if( (mode == M_QUIZSUMM) && (outcome & 2) ) { /* quiz summary */
c_name = rindex(g_quiz_path,'/');
c_name++;
i = strlen(c_name);
len = strlen(g_quiz_path) - i - 1;
for(i=0;i<len;i++) {
c_path[i]=g_quiz_path[i];
}
c_path[len]=0;
print_summary(c_path,c_name,g_student_number, g_entered_pin, g_quiz_set);
}
}
/* ---------------- JAVA TScore.class page print out ----------------- */
void /* RETURNS: (nothing) */
print_termscore_page(class_dir,class,student_number,pin,set,out)
char *class_dir;char *class;char *student_number;int pin;int set; /* student login set */
FILE *out;
{ /* LOCAL VARIABLES: */
int set_idx, /* Set counter */
i, /* Question counter */
set_score, /* Score on a set */
term_score=0, /* Total points received */
term_valid=0; /* Total points possible */
T_entry entry; /* Database entry for a set */
char buf[MAX_BUFFER_SIZE]; /* Output line buffer */
T_header header; /* Problem set header */
int question_cnt,valid_wgt,configResult;
char class_fullpath[ONE_K],*serverName;
int hw_c, hw_r, qz_c, qz_r, fs, homework_count, quiz_count;
float hw_w, qz_w, ex_w, fe_w, pc_w;
int idx, entry_count, tmp_len;
float *S, *F;
int *X; /* array controlling whether to extrapolate scores */
char *capa_server;
int max_set[4], width=600,height=750; /* width and height of applet*/
char **c_path_pp;
/*Unused Vars
char buf2[MAX_BUFFER_SIZE];
char *qz_p, *ex_p, *epc_p;
int ex_c, epc_c, result;
int rate, status_line_length=DEFAULT_STATUS_LINE_LENGTH,row;
*/
serverName=getenv("SERVER_NAME");
if (!serverName) {
fprintf(out,"Enviroment variable SERVER_NAME not set.\n");
fprintf(out,"Unable to complete actions.\n");
return;
}
sprintf(class_fullpath,"%s/%s",class_dir,class);
chdir(class_fullpath);
/*
change the working director to the major homework directory and begin to
read off the remaining path informations from this capa.config file
homework_path =
quiz_path =
exam_path =
correction_path =
homework_weight = 0.3
quiz_weight = 0.7
exam_weight = 0.3
final_weight = 0.35
correction_weight = 0.3
final_exam_set_number = 4
homework_count = 12
quiz_count = 24
*/
configResult=read_capa_config("capa_server",buf);
if (configResult != 0 && configResult != -1 ) {
tmp_len = strlen(buf) + 1;
capa_server = (char *)capa_malloc( tmp_len, sizeof(char));
sprintf(capa_server,"%s",buf);
} else { /* if capa_server is not set then we won't do anything further */
fprintf(out,"Parameter: capa_server in capa.config file are not properly set.\n");
return ;
}
if( get_termscore_params(&hw_w,&qz_w,&ex_w,&fe_w,&pc_w,&homework_count,&quiz_count,&fs) == -1 ) {
fprintf(out,"Parameters in capa.config file are not properly set.\n");
fprintf(out," such as homework_weight, quiz_weight, exam_weight, final_weight, correction_weight.\n");
return;
}
get_tscore_width_height(&width,&height);
c_path_pp = (char **)capa_malloc( 4, sizeof(char *));
tmp_len = strlen(class_fullpath) + 1;
c_path_pp[0] = (char *)capa_malloc(tmp_len,sizeof(char));
sprintf(c_path_pp[0],"%s",class_fullpath); /* c_path_pp[0] should always be there */
entry_count = fs*2 + 1;
S = (float *)capa_malloc( ((fs+1)*2), sizeof(float));
F = (float *)capa_malloc( ((fs+1)*2), sizeof(float));
X = (int *)capa_malloc( ((fs+1)*2), sizeof(int));
max_set[0] = set; /* the login set number */
hw_c = max_set[0];
hw_r = homework_count - set;
configResult=read_capa_config("quiz_path",buf);
if (configResult != 0 && configResult != -1 ) {
tmp_len = strlen(buf)+1;
c_path_pp[1] = (char *)capa_malloc(tmp_len,sizeof(char));
sprintf(c_path_pp[1],"%s",buf);
max_set[1] = check_class_get_maxset(c_path_pp[1]);
if( max_set[1] <= 0 ) {
/* should we continue ? */
max_set[1] = 1;
X[1] = 1;
}
qz_c = max_set[1];
qz_r = quiz_count - max_set[1];
} else { /* if quiz_path is not in capa.config, then we will skip quizz */
qz_c = 0;
qz_r = 0;
}
configResult=read_capa_config("exam_path",buf);
if (configResult != 0 && configResult != -1 ) {
tmp_len = strlen(buf)+1;
c_path_pp[2] = (char *)capa_malloc( (tmp_len),sizeof(char));
sprintf(c_path_pp[2],"%s",buf);
max_set[2] = check_class_get_maxset(c_path_pp[2]);
printf("<!-- for %s max_set %d -->\n",c_path_pp[2],max_set[2]);
if( max_set[2] <= 0 ) {
/* no sets */
max_set[2] = 0;
}
/* start extrapolation with sets that don't yet exist */
for(idx=2+(max_set[2]*2);idx <= (fs*2); idx++) {
X[idx] = 1;
}
} else { /* if exam_path is not in capa.config, then skip exams */
fs = 0;
}
configResult=read_capa_config("correction_path",buf);
if (configResult != 0 && configResult != -1 ) {
tmp_len = strlen(buf)+1;
c_path_pp[3] = (char *)capa_malloc(tmp_len,sizeof(char));
sprintf(c_path_pp[3],"%s",buf);
max_set[3] = check_class_get_maxset(c_path_pp[3]);
if( max_set[3] <= 0 ) {
/* should we continue ? */
max_set[3] = 0;
}
} else { /* if correction_path is not in capa.config, then skip corrections */
pc_w = 0.0;
}
for( idx = 0; idx < 4; idx++) {
if( c_path_pp[idx] != NULL ) {
chdir(c_path_pp[idx]);
term_score=0;
term_valid=0;
for (set_idx=1; set_idx<=max_set[idx]; set_idx++) {
if (capa_get_header(&header,set_idx)) return;
capa_get_entry(&entry,student_number,set_idx);
sscanf(header.num_questions,"%d", &(question_cnt) );
valid_wgt = 0; set_score = 0;
header.weight[question_cnt] = '\0';
header.partial_credit[question_cnt] = '\0';
for (i=0; i<question_cnt; i++) {
valid_wgt += (header.weight[i] - '0');
if((entry.answers[i]=='Y') || (entry.answers[i]=='y'))
set_score += (header.weight[i]-'0');
if((entry.answers[i]=='E') || (entry.answers[i]=='e'))
valid_wgt -= (header.weight[i] - '0');
if((entry.answers[i]>='0') && (entry.answers[i]<='9'))
set_score += (entry.answers[i] - '0');
}
term_valid += valid_wgt;
term_score += set_score;
capa_mfree(header.weight);
capa_mfree(header.partial_credit);
printf("<!-- %s %d %d -->\n",c_path_pp[idx],set_score,valid_wgt);
if(idx==2) { /* exam sets */
S[set_idx*2] = (float)set_score;
F[set_idx*2] = (float)valid_wgt;
if (valid_wgt == 0) {
X[set_idx*2] = 1;
} else {
X[set_idx*2] = 0;
}
}
if(idx==3) { /* correction sets */
S[set_idx*2+1] = (float)set_score;
F[set_idx*2+1] = (float)valid_wgt;
if (valid_wgt == 0 ) {
X[set_idx*2+1] = 1;
} else {
X[set_idx*2+1] = 0;
}
}
}
if( (idx == 0) || (idx==1) ) { /* homeworks and quizzes */
S[idx] = (float)term_score;
F[idx] = (float)term_valid;
X[idx] = 1;
}
}
}
fprintf(out,"<CENTER>\n");
fprintf(out,"<APPLET CODE=TScore.class CODEBASE=\"http://%s/CAPA/\" width=%d height=%d>\n",capa_server,width,height);
fprintf(out,"<PARAM NAME=\"HW_W\" VALUE=\"%f\">\n", hw_w);
fprintf(out,"<PARAM NAME=\"QZ_W\" VALUE=\"%f\">\n", qz_w);
fprintf(out,"<PARAM NAME=\"EX_W\" VALUE=\"%f\">\n", ex_w);
fprintf(out,"<PARAM NAME=\"FE_W\" VALUE=\"%f\">\n", fe_w);
fprintf(out,"<PARAM NAME=\"PC_W\" VALUE=\"%f\">\n", pc_w);
fprintf(out,"<PARAM NAME=\"HW_C\" VALUE=\"%d\">\n", hw_c);
fprintf(out,"<PARAM NAME=\"HW_R\" VALUE=\"%d\">\n", hw_r);
fprintf(out,"<PARAM NAME=\"FS\" VALUE=\"%d\">\n", fs);
fprintf(out,"<PARAM NAME=\"QZ_C\" VALUE=\"%d\">\n", qz_c);
fprintf(out,"<PARAM NAME=\"QZ_R\" VALUE=\"%d\">\n", qz_r);
for(idx=0;idx<entry_count;idx++) {
fprintf(out,"<PARAM NAME=\"S%d\" VALUE=\"%f\">\n",idx,S[idx]);
fprintf(out,"<PARAM NAME=\"F%d\" VALUE=\"%f\">\n",idx,F[idx]);
fprintf(out,"<PARAM NAME=\"X%d\" VALUE=\"%d\">\n",idx,X[idx]);
}
fprintf(out,"</APPLET> </CENTER>\n");
fprintf(out,"<TABLE cellpadding=0 cellspacing=0 border=0>\n<TR><TD>");
fprintf(out,"<form method=\"post\" ");
sprintf(buf,"action=\"http://%s/%s/%s/capasbin\">",serverName,g_cgibin_path,g_cowner);
fprintf(out,"%s\n", buf);
fprintf(out,"<input type=\"hidden\" name=\"CLASS\" value=\"%s\">\n",g_class_name);
fprintf(out,"<input type=\"hidden\" name=\"SNUM\" value=\"%s\">\n",g_student_number);
fprintf(out,"<input type=\"hidden\" name=\"CAPAID\" value=\"%d\">\n",g_entered_pin);
fprintf(out,"<input type=\"hidden\" name=\"M\" value=\"%d\">\n",M_CHECKIN);
fprintf(out,"<input type=\"submit\" value=\"Main menu\" ></form></TD>\n");
fprintf(out,"<TD><form method=\"get\" action=\"http://%s/CAPA/class.html\">",serverName);
fprintf(out,"<input type=\"button\" value=\"Exit\" onclick=\"window.close()\"></form></TD>");
fprintf(out,"\n</TABLE>\n");
capa_mfree((char *)S);
capa_mfree((char *)F);
capa_mfree((char *)X);
for(idx=0;idx<4;idx++) {
if( c_path_pp[idx] != NULL ) capa_mfree((char *)c_path_pp[idx]);
}
capa_mfree((char *)c_path_pp);
capa_mfree((char *)capa_server);
}
void
get_tscore_width_height(width,height)
int *width;int *height;
{
char buf[MAX_BUFFER_SIZE];
int configResult;
configResult=read_capa_config("tscore_width",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%d", width);
if (*width <= 0 ) { *width = DEFAULT_WIDTH; }
} else {
printf("<!-- tscore_width not found. %d-->\n",configResult);
}
configResult=read_capa_config("tscore_height",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%d", height);
if (*height <= 0 ) { *height = DEFAULT_HEIGHT; }
} else {
printf("<!-- tscore_height not found. %d-->\n",configResult);
}
}
int
get_termscore_params(hw,qw,ew,fw,pw,hc,qc,fs)
float *hw;float *qw;float *ew;float *fw;float *pw;
int *hc;int *qc;int *fs;
{
char buf[MAX_BUFFER_SIZE]; /* Output line buffer */
int hw_c, qz_c, fe_s;
float hw_w, qz_w, ex_w, fe_w, pc_w;
int configResult;
configResult=read_capa_config("homework_weight",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%f", &hw_w);
if(hw_w < 0.0 ) {
hw_w = DEFAULT_HW_W;
}
} else {
return (-1);
}
configResult=read_capa_config("quiz_weight",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%f", &qz_w);
if(qz_w < 0.0 ) {
qz_w = DEFAULT_QZ_W;
}
} else {
return (-1);
}
configResult=read_capa_config("exam_weight",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%f", &ex_w);
if(ex_w < 0.0 ) {
ex_w = DEFAULT_EX_W;
}
} else {
return (-1);
}
configResult=read_capa_config("final_weight",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%f", &fe_w);
if(fe_w < 0.0 ) {
fe_w = DEFAULT_FE_W;
}
} else {
return (-1);
}
configResult=read_capa_config("correction_weight",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%f", &pc_w);
if(pc_w < 0.0 ) {
pc_w = DEFAULT_PC_W;
}
} else {
return (-1);
}
configResult=read_capa_config("final_exam_set_number",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%d", &fe_s);
if(fe_s <= 0 ) {
fe_s = DEFAULT_FE_NUMBER;
}
} else {
return (-1);
}
configResult=read_capa_config("homework_count",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%d", &hw_c);
if(hw_c <= 0 ) {
hw_c = DEFAULT_HW_COUNT;
}
} else {
return (-1);
}
configResult=read_capa_config("quiz_count",buf);
if (configResult != 0 && configResult != -1 ) {
sscanf(buf,"%d", &qz_c);
if(qz_c <= 0 ) {
qz_c = DEFAULT_QZ_COUNT;
}
} else {
return (-1);
}
*hw = hw_w; *qw = qz_w; *ew = ex_w; *fw = fe_w; *pw = pc_w;
*hc = hw_c; *qc = qz_c; *fs = fe_s;
return (0);
}
/* =================================================================================================== */
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