mirror of
https://github.com/nginx/nginx.git
synced 2024-12-17 23:27:49 +08:00
563 lines
16 KiB
C
563 lines
16 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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#if 0
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typedef struct {
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ngx_buf_t *buf;
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size_t size;
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ngx_pool_t *pool;
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size_t alloc_size;
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ngx_chain_t **last_out;
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} ngx_http_autoindex_ctx_t;
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#endif
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typedef struct {
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ngx_str_t name;
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ngx_uint_t dir;
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time_t mtime;
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off_t size;
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} ngx_http_autoindex_entry_t;
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typedef struct {
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ngx_flag_t enable;
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} ngx_http_autoindex_loc_conf_t;
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#define NGX_HTTP_AUTOINDEX_NAME_LEN 50
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static int ngx_http_autoindex_cmp_entries(const void *one, const void *two);
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static ngx_int_t ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir,
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u_char *name);
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static ngx_int_t ngx_http_autoindex_init(ngx_cycle_t *cycle);
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static void *ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf);
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static char *ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf,
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void *parent, void *child);
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static ngx_command_t ngx_http_autoindex_commands[] = {
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{ ngx_string("autoindex"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_HTTP_LOC_CONF_OFFSET,
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offsetof(ngx_http_autoindex_loc_conf_t, enable),
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NULL },
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ngx_null_command
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};
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ngx_http_module_t ngx_http_autoindex_module_ctx = {
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NULL, /* pre conf */
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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NULL, /* create server configuration */
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NULL, /* merge server configuration */
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ngx_http_autoindex_create_loc_conf, /* create location configration */
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ngx_http_autoindex_merge_loc_conf /* merge location configration */
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};
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ngx_module_t ngx_http_autoindex_module = {
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NGX_MODULE,
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&ngx_http_autoindex_module_ctx, /* module context */
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ngx_http_autoindex_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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ngx_http_autoindex_init, /* init module */
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NULL /* init child */
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};
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static u_char title[] =
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"<html>" CRLF
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"<head><title>Index of "
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;
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static u_char header[] =
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"</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<h1>Index of "
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;
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static u_char tail[] =
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"</body>" CRLF
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"</html>" CRLF
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;
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static ngx_int_t ngx_http_autoindex_handler(ngx_http_request_t *r)
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{
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u_char *last, scale;
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size_t len;
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off_t length;
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ngx_tm_t tm;
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ngx_int_t rc, size;
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ngx_uint_t i, level;
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ngx_err_t err;
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ngx_buf_t *b;
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ngx_chain_t out;
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ngx_str_t dname, fname;
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ngx_dir_t dir;
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ngx_pool_t *pool;
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ngx_array_t entries;
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ngx_http_core_loc_conf_t *clcf;
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ngx_http_autoindex_entry_t *entry;
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ngx_http_autoindex_loc_conf_t *alcf;
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static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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if (r->uri.data[r->uri.len - 1] != '/') {
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return NGX_DECLINED;
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}
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alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module);
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if (!alcf->enable) {
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return NGX_DECLINED;
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}
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/* TODO: pool should be temporary pool */
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pool = r->pool;
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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if (clcf->alias) {
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dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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+ NGX_DIR_MASK_LEN
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- clcf->name.len);
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if (dname.data == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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last = ngx_cpystrn(last, r->uri.data + clcf->name.len,
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r->uri.len - clcf->name.len);
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} else {
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dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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+ NGX_DIR_MASK_LEN);
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if (dname.data == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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last = ngx_cpystrn(last, r->uri.data, r->uri.len);
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}
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dname.len = last - dname.data;
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http autoindex: \"%s\"", dname.data);
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if (ngx_open_dir(&dname, &dir) == NGX_ERROR) {
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err = ngx_errno;
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if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_NOT_FOUND;
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} else if (err == NGX_EACCES) {
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_FORBIDDEN;
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} else {
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level = NGX_LOG_CRIT;
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rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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ngx_log_error(level, r->connection->log, err,
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ngx_open_dir_n " \"%s\" failed", dname.data);
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return rc;
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}
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#if (NGX_SUPPRESS_WARN)
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/* MSVC thinks 'entries' may be used without having been initialized */
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ngx_memzero(&entries, sizeof(ngx_array_t));
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#endif
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if (ngx_array_init(&entries, pool, 50, sizeof(ngx_http_autoindex_entry_t))
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== NGX_ERROR)
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{
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return ngx_http_autoindex_error(r, &dir, dname.data);
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}
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fname.len = 0;
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#if (NGX_SUPPRESS_WARN)
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fname.data = NULL;
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#endif
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for ( ;; ) {
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ngx_set_errno(0);
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if (ngx_read_dir(&dir) == NGX_ERROR) {
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err = ngx_errno;
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if (err == NGX_ENOMOREFILES) {
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rc = NGX_OK;
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} else {
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ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
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ngx_read_dir_n " \"%s\" failed", dname.data);
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return ngx_http_autoindex_error(r, &dir, dname.data);
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}
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break;
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}
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http autoindex file: \"%s\"", ngx_de_name(&dir));
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len = ngx_de_namelen(&dir);
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if (len == 1 && ngx_de_name(&dir)[0] == '.') {
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continue;
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}
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if (len == 2
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&& ngx_de_name(&dir)[0] == '.'
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&& ngx_de_name(&dir)[0] == '.')
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{
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continue;
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}
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if (!dir.valid_info) {
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if (dname.len + 1 + len > fname.len) {
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fname.len = dname.len + 1 + len + 32;
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if (!(fname.data = ngx_palloc(pool, fname.len))) {
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return ngx_http_autoindex_error(r, &dir, dname.data);
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}
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last = ngx_cpystrn(fname.data, dname.data,
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dname.len + 1);
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*last++ = '/';
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}
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ngx_cpystrn(last, ngx_de_name(&dir), len + 1);
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if (ngx_de_info(fname.data, &dir) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
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ngx_de_info_n " \"%s\" failed", fname.data);
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return ngx_http_autoindex_error(r, &dir, dname.data);
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}
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}
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if (!(entry = ngx_array_push(&entries))) {
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return ngx_http_autoindex_error(r, &dir, dname.data);
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}
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entry->name.len = len;
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if (!(entry->name.data = ngx_palloc(pool, len + 1))) {
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return ngx_http_autoindex_error(r, &dir, dname.data);
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}
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ngx_cpystrn(entry->name.data, ngx_de_name(&dir), len + 1);
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entry->dir = ngx_de_is_dir(&dir);
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entry->mtime = ngx_de_mtime(&dir);
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entry->size = ngx_de_size(&dir);
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}
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if (ngx_close_dir(&dir) == NGX_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
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ngx_close_dir_n " \"%s\" failed", dname.data);
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}
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len = sizeof(title) - 1
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+ r->uri.len
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+ sizeof(header) - 1
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+ r->uri.len
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+ sizeof("</h1>") - 1
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+ sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1
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+ sizeof("</pre><hr>") - 1
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+ sizeof(tail) - 1;
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entry = entries.elts;
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for (i = 0; i < entries.nelts; i++) {
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len += sizeof("<a href=\"") - 1
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+ 1 /* 1 is for "/" */
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+ entry[i].name.len
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+ sizeof("\">") - 1
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+ NGX_HTTP_AUTOINDEX_NAME_LEN
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+ sizeof("</a>") - 1
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+ 1
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+ sizeof("28-Sep-1970 12:00 ") - 1
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+ sizeof("1023G") - 1
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+ 2;
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}
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if (!(b = ngx_create_temp_buf(r->pool, len))) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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if (entries.nelts > 1) {
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ngx_qsort(entry, (size_t) entries.nelts,
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sizeof(ngx_http_autoindex_entry_t),
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ngx_http_autoindex_cmp_entries);
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}
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b->last = ngx_cpymem(b->last, title, sizeof(title) - 1);
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b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
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b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1);
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b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF,
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sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1);
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for (i = 0; i < entries.nelts; i++) {
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b->last = ngx_cpymem(b->last, "<a href=\"", sizeof("<a href=\"") - 1);
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b->last = ngx_cpymem(b->last, entry[i].name.data, entry[i].name.len);
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if (entry[i].dir) {
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*b->last++ = '/';
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}
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*b->last++ = '"';
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*b->last++ = '>';
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b->last = ngx_cpystrn(b->last, entry[i].name.data,
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NGX_HTTP_AUTOINDEX_NAME_LEN + 1);
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len = entry[i].name.len;
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if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
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b->last = ngx_cpymem(b->last - 3, "..></a>",
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sizeof("..></a>") - 1);
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} else {
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if (entry[i].dir && NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) {
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*b->last++ = '/';
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len++;
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}
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b->last = ngx_cpymem(b->last, "</a>", sizeof("</a>") - 1);
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ngx_memset(b->last, ' ', NGX_HTTP_AUTOINDEX_NAME_LEN - len);
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b->last += NGX_HTTP_AUTOINDEX_NAME_LEN - len;
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}
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*b->last++ = ' ';
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ngx_gmtime(entry[i].mtime, &tm);
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b->last = ngx_sprintf(b->last, "%02d-%s-%d %02d:%02d ",
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tm.ngx_tm_mday,
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months[tm.ngx_tm_mon - 1],
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tm.ngx_tm_year,
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tm.ngx_tm_hour,
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tm.ngx_tm_min);
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if (entry[i].dir) {
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b->last = ngx_cpymem(b->last, " -", sizeof(" -") - 1);
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} else {
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length = entry[i].size;
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if (length > 1024 * 1024 * 1024) {
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size = (ngx_int_t) (length / (1024 * 1024 * 1024));
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if ((length % (1024 * 1024 * 1024))
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> (1024 * 1024 * 1024 / 2 - 1))
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{
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size++;
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}
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scale = 'G';
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} else if (length > 1024 * 1024) {
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size = (ngx_int_t) (length / (1024 * 1024));
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if ((length % (1024 * 1024)) > (1024 * 1024 / 2 - 1)) {
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size++;
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}
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scale = 'M';
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} else if (length > 9999) {
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size = (ngx_int_t) (length / 1024);
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if (length % 1024 > 511) {
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size++;
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}
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scale = 'K';
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} else {
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size = (ngx_int_t) length;
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scale = ' ';
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}
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b->last = ngx_sprintf(b->last, "%4i", size);
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if (scale != ' ') {
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*b->last++ = scale;
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}
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}
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*b->last++ = CR;
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*b->last++ = LF;
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}
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/* TODO: free temporary pool */
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b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1);
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b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1);
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r->headers_out.status = NGX_HTTP_OK;
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r->headers_out.content_length_n = b->last - b->pos;
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r->headers_out.content_type = ngx_list_push(&r->headers_out.headers);
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if (r->headers_out.content_type == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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r->headers_out.content_type->key.len = 0;
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r->headers_out.content_type->key.data = NULL;
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r->headers_out.content_type->value.len = sizeof("text/html") - 1;
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r->headers_out.content_type->value.data = (u_char *) "text/html";
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rc = ngx_http_send_header(r);
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if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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return rc;
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}
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if (!r->main) {
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b->last_buf = 1;
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}
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out.buf = b;
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out.next = NULL;
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return ngx_http_output_filter(r, &out);
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}
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static int ngx_http_autoindex_cmp_entries(const void *one, const void *two)
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{
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ngx_http_autoindex_entry_t *first = (ngx_http_autoindex_entry_t *) one;
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ngx_http_autoindex_entry_t *second = (ngx_http_autoindex_entry_t *) two;
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if (first->dir && !second->dir) {
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/* move the directories to the start */
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return -1;
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}
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if (!first->dir && second->dir) {
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/* move the directories to the start */
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return 1;
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}
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return (int) ngx_strcmp(first->name.data, second->name.data);
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}
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#if 0
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static ngx_buf_t *ngx_http_autoindex_alloc(ngx_http_autoindex_ctx_t *ctx,
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size_t size)
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{
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ngx_chain_t *cl;
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if (ctx->buf) {
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if ((size_t) (ctx->buf->end - ctx->buf->last) >= size) {
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return ctx->buf;
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}
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ctx->size += ctx->buf->last - ctx->buf->pos;
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}
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if (!(ctx->buf = ngx_create_temp_buf(ctx->pool, ctx->alloc_size))) {
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return NULL;
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}
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if (!(cl = ngx_alloc_chain_link(ctx->pool))) {
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return NULL;
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}
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cl->buf = ctx->buf;
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cl->next = NULL;
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*ctx->last_out = cl;
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ctx->last_out = &cl->next;
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return ctx->buf;
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}
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#endif
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static ngx_int_t ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir,
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u_char *name)
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{
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if (ngx_close_dir(dir) == NGX_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
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ngx_close_dir_n " \"%s\" failed", name);
|
|
}
|
|
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
|
|
static ngx_int_t ngx_http_autoindex_init(ngx_cycle_t *cycle)
|
|
{
|
|
ngx_http_handler_pt *h;
|
|
ngx_http_core_main_conf_t *cmcf;
|
|
|
|
cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
|
|
|
|
h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
|
|
if (h == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
*h = ngx_http_autoindex_handler;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static void *ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf)
|
|
{
|
|
ngx_http_autoindex_loc_conf_t *conf;
|
|
|
|
conf = ngx_palloc(cf->pool, sizeof(ngx_http_autoindex_loc_conf_t));
|
|
if (conf == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
conf->enable = NGX_CONF_UNSET;
|
|
|
|
return conf;
|
|
}
|
|
|
|
|
|
static char *ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf,
|
|
void *parent, void *child)
|
|
{
|
|
ngx_http_autoindex_loc_conf_t *prev = parent;
|
|
ngx_http_autoindex_loc_conf_t *conf = child;
|
|
|
|
ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
|
return NGX_CONF_OK;
|
|
}
|