Armin Friedl
329dedc33b
Reads header, footer and entry templates from files defined in config.h. Defaults to original output if not found.
129 lines
2.2 KiB
C
129 lines
2.2 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <dirent.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <unistd.h>
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#include "http.h"
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#include "resp.h"
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#include "util.h"
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#include "dirl.h"
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static int
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compareent(const struct dirent **d1, const struct dirent **d2)
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{
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int v;
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v = ((*d2)->d_type == DT_DIR ? 1 : -1) -
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((*d1)->d_type == DT_DIR ? 1 : -1);
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if (v) {
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return v;
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}
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return strcmp((*d1)->d_name, (*d2)->d_name);
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}
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enum status
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resp_dir(int fd, const struct response *res)
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{
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enum status ret;
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struct dirent **e;
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size_t i;
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int dirlen;
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char esc[PATH_MAX /* > NAME_MAX */ * 6]; /* strlen("&...;") <= 6 */
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/* read directory */
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if ((dirlen = scandir(res->path, &e, NULL, compareent)) < 0) {
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return S_FORBIDDEN;
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}
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/* listing header */
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if ((ret = dirl_header(fd, res))) {
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return ret;
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}
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/* entries */
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for (i = 0; i < (size_t)dirlen; i++) {
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/* skip hidden files, "." and ".." */
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if (e[i]->d_name[0] == '.') {
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continue;
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}
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/* skip dirl special files */
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if(dirl_skip(e[i]->d_name)) {
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continue;
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}
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/* entry line */
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if ((ret = dirl_entry(fd, e[i]))) {
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goto cleanup;
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}
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}
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/* listing footer */
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if ((ret = dirl_footer(fd))) {
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goto cleanup;
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}
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cleanup:
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while (dirlen--) {
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free(e[dirlen]);
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}
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free(e);
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return ret;
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}
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enum status
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resp_file(int fd, const struct response *res)
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{
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FILE *fp;
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enum status ret = 0;
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ssize_t bread, bwritten;
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size_t remaining;
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static char buf[BUFSIZ], *p;
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/* open file */
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if (!(fp = fopen(res->path, "r"))) {
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ret = S_FORBIDDEN;
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goto cleanup;
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}
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/* seek to lower bound */
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if (fseek(fp, res->file.lower, SEEK_SET)) {
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ret = S_INTERNAL_SERVER_ERROR;
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goto cleanup;
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}
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/* write data until upper bound is hit */
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remaining = res->file.upper - res->file.lower + 1;
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while ((bread = fread(buf, 1, MIN(sizeof(buf),
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remaining), fp))) {
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if (bread < 0) {
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ret = S_INTERNAL_SERVER_ERROR;
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goto cleanup;
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}
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remaining -= bread;
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p = buf;
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while (bread > 0) {
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bwritten = write(fd, p, bread);
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if (bwritten <= 0) {
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ret = S_REQUEST_TIMEOUT;
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goto cleanup;
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}
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bread -= bwritten;
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p += bwritten;
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}
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}
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cleanup:
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if (fp) {
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fclose(fp);
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}
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return ret;
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}
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