mirror of
https://github.com/rkd77/elinks.git
synced 2024-11-04 08:17:17 -05:00
173 lines
3.2 KiB
C
173 lines
3.2 KiB
C
|
/* CGI script for FSP protocol support */
|
||
|
|
|
||
|
|
#include <ctype.h>
|
||
|
|
#include <fsplib.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
char *pname, *query;
|
||
|
|
|
||
|
|
struct fq {
|
||
|
|
char *password;
|
||
|
|
char *host;
|
||
|
|
char *path;
|
||
|
|
unsigned short port;
|
||
|
|
} data;
|
||
|
|
|
||
|
|
static void
|
||
|
|
error(const char *str)
|
||
|
|
{
|
||
|
|
printf("Content-Type: text/plain\r\nConnection: close\r\n\r\n");
|
||
|
|
puts(str);
|
||
|
|
printf("%s\n", query);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
process_directory(FSP_SESSION *ses)
|
||
|
|
{
|
||
|
|
char buf[1024];
|
||
|
|
FSP_DIR *dir;
|
||
|
|
/* TODO: password */
|
||
|
|
|
||
|
|
snprintf(buf, sizeof(buf), "file://%s?%s:%d%s/", pname, data.host,
|
||
|
|
data.port, data.path);
|
||
|
|
printf("Content-Type: text/html\r\n\r\n");
|
||
|
|
printf("<html><head><title>%s</title></head><body>\n", buf);
|
||
|
|
dir = fsp_opendir(ses, data.path);
|
||
|
|
if (dir) {
|
||
|
|
FSP_RDENTRY fentry, *fresult;
|
||
|
|
|
||
|
|
while (!fsp_readdir_native(dir, &fentry, &fresult)) {
|
||
|
|
if (!fresult) break;
|
||
|
|
printf("<a href=\"%s%s\">%s</a><br>\n", buf, fentry.name, fentry.name);
|
||
|
|
}
|
||
|
|
fsp_closedir(dir);
|
||
|
|
}
|
||
|
|
puts("</body></html>");
|
||
|
|
fsp_close_session(ses);
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
process_data(void)
|
||
|
|
{
|
||
|
|
FSP_SESSION *ses = fsp_open_session(data.host, data.port, data.password);
|
||
|
|
struct stat sb;
|
||
|
|
|
||
|
|
if (!ses) error("Session initialization failed.");
|
||
|
|
if (fsp_stat(ses, data.path, &sb)) error("File not found.");
|
||
|
|
if (S_ISDIR(sb.st_mode)) process_directory(ses);
|
||
|
|
else { /* regular file */
|
||
|
|
char buf[4096];
|
||
|
|
FSP_FILE *file = fsp_fopen(ses, data.path, "r");
|
||
|
|
int r;
|
||
|
|
|
||
|
|
if (!file) error("fsp_fopen error.");
|
||
|
|
printf("Content-Type: application/octet-stream\r\nContent-Length: %d\r\n"
|
||
|
|
"Connection: close\r\n\r\n", sb.st_size);
|
||
|
|
while ((r = fsp_fread(buf, 1, 4096, file)) > 0) fwrite(buf, 1, r, stdout);
|
||
|
|
fsp_fclose(file);
|
||
|
|
fsp_close_session(ses);
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
process_query(void)
|
||
|
|
{
|
||
|
|
char *at = strchr(query, '@');
|
||
|
|
char *colon;
|
||
|
|
char *slash;
|
||
|
|
|
||
|
|
if (at) {
|
||
|
|
*at = '\0';
|
||
|
|
data.password = strdup(query);
|
||
|
|
query = at + 1;
|
||
|
|
}
|
||
|
|
colon = strchr(query, ':');
|
||
|
|
if (colon) {
|
||
|
|
*colon = '\0';
|
||
|
|
data.host = strdup(query);
|
||
|
|
data.port = atoi(colon + 1);
|
||
|
|
slash = strchr(colon + 1, '/');
|
||
|
|
if (slash) {
|
||
|
|
data.path = strdup(slash);
|
||
|
|
} else {
|
||
|
|
data.path = "/";
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
data.port = 21;
|
||
|
|
slash = strchr(query, '/');
|
||
|
|
if (slash) {
|
||
|
|
*slash = '\0';
|
||
|
|
data.host = strdup(query);
|
||
|
|
*slash = '/';
|
||
|
|
data.path = strdup(slash);
|
||
|
|
} else {
|
||
|
|
data.host = strdup(query);
|
||
|
|
data.path = "/";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
process_data();
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int
|
||
|
|
unhx(register unsigned char a)
|
||
|
|
{
|
||
|
|
if (isdigit(a)) return a - '0';
|
||
|
|
if (a >= 'a' && a <= 'f') return a - 'a' + 10;
|
||
|
|
if (a >= 'A' && a <= 'F') return a - 'A' + 10;
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
decode_query(char *src)
|
||
|
|
{
|
||
|
|
char *dst = src;
|
||
|
|
char c;
|
||
|
|
|
||
|
|
do {
|
||
|
|
c = *src++;
|
||
|
|
|
||
|
|
if (c == '%') {
|
||
|
|
int x1 = unhx(*src);
|
||
|
|
|
||
|
|
if (x1 >= 0) {
|
||
|
|
int x2 = unhx(*(src + 1));
|
||
|
|
|
||
|
|
if (x2 >= 0) {
|
||
|
|
x1 = (x1 << 4) + x2;
|
||
|
|
if (x1 != 0) { /* don't allow %00 */
|
||
|
|
c = (unsigned char) x1;
|
||
|
|
src += 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} else if (c == '+') {
|
||
|
|
c = ' ';
|
||
|
|
}
|
||
|
|
|
||
|
|
*dst++ = c;
|
||
|
|
} while (c != '\0');
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
char *q = getenv("QUERY_STRING");
|
||
|
|
|
||
|
|
if (!q) return 1;
|
||
|
|
pname = argv[0];
|
||
|
|
query = strdup(q);
|
||
|
|
if (!query) return 2;
|
||
|
|
decode_query(query);
|
||
|
|
process_query();
|
||
|
|
return 0;
|
||
|
|
}
|