86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <ctype.h>
|
||
|
|
|
||
|
|
#include "webarchive.h"
|
||
|
|
|
||
|
|
const char *validate(const char *data)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
// name
|
||
|
|
if (strncmp(data,"name=",5) != 0)
|
||
|
|
return "invalid query string: must start with 'name='";
|
||
|
|
i = 5;
|
||
|
|
while (isalnum(data[i]))
|
||
|
|
i++;
|
||
|
|
if (i == 5)
|
||
|
|
return "invalid query string: no name";
|
||
|
|
if (i > 35)
|
||
|
|
return "invalid query string: max name size is 32";
|
||
|
|
|
||
|
|
// filedata
|
||
|
|
if (strncmp(data+i, "&data=", 6) != 0)
|
||
|
|
return "invalid query string: invalid name / no data";
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
const char *query_string = getenv("QUERY_STRING");
|
||
|
|
if (query_string == NULL) {
|
||
|
|
generatepage("Internal error: invalid request");
|
||
|
|
} else if (NULL != validate(query_string)) {
|
||
|
|
generatepage(validate(query_string));
|
||
|
|
} else {
|
||
|
|
char *data[MAX_RECORDS] = {0};
|
||
|
|
if (!readdata(data, MAX_RECORDS)) {
|
||
|
|
generatepage("Failed to read file data");
|
||
|
|
return EXIT_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
char name[32] = {0};
|
||
|
|
strcpy(name, getname(query_string));
|
||
|
|
int index = -1;
|
||
|
|
for (int i = 0; i < MAX_RECORDS && data[i]; i++) {
|
||
|
|
if (strcmp(name, getname(data[i])) == 0) {
|
||
|
|
index = i;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (index == -1) {
|
||
|
|
generatepage("File not found");
|
||
|
|
return EXIT_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
// cleanup data...
|
||
|
|
char str[1000] = {0};
|
||
|
|
char *dst = str;
|
||
|
|
for (const char *src = query_string; *src; src++) {
|
||
|
|
*dst = *src;
|
||
|
|
dst++;
|
||
|
|
if (strncmp(src, "%25", 3) == 0 && isxdigit(src[3]) && isxdigit(src[4]))
|
||
|
|
src += 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
data[index] = str;
|
||
|
|
sortdata(data, MAX_RECORDS);
|
||
|
|
|
||
|
|
FILE *f = fopen("data.txt", "wt");
|
||
|
|
if (f == NULL) {
|
||
|
|
generatepage("Failed to add file (access denied). Try again.");
|
||
|
|
return EXIT_SUCCESS;
|
||
|
|
}
|
||
|
|
for (int i = 0; i < MAX_RECORDS && data[i]; i++)
|
||
|
|
fprintf(f, "%s\n", data[i]);
|
||
|
|
fclose(f);
|
||
|
|
generatepage("saved.");
|
||
|
|
}
|
||
|
|
|
||
|
|
return EXIT_SUCCESS;
|
||
|
|
}
|
||
|
|
|