| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_http.h> |
| |
| |
| #if 0 |
| |
| typedef struct { |
| ngx_buf_t *buf; |
| size_t size; |
| ngx_pool_t *pool; |
| size_t alloc_size; |
| ngx_chain_t **last_out; |
| } ngx_http_autoindex_ctx_t; |
| |
| #endif |
| |
| |
| typedef struct { |
| ngx_str_t name; |
| size_t utf_len; |
| size_t escape; |
| size_t escape_html; |
| |
| unsigned dir:1; |
| |
| time_t mtime; |
| off_t size; |
| } ngx_http_autoindex_entry_t; |
| |
| |
| typedef struct { |
| ngx_flag_t enable; |
| ngx_flag_t localtime; |
| ngx_flag_t exact_size; |
| } ngx_http_autoindex_loc_conf_t; |
| |
| |
| #define NGX_HTTP_AUTOINDEX_PREALLOCATE 50 |
| |
| #define NGX_HTTP_AUTOINDEX_NAME_LEN 50 |
| |
| |
| static int ngx_libc_cdecl ngx_http_autoindex_cmp_entries(const void *one, |
| const void *two); |
| static ngx_int_t ngx_http_autoindex_error(ngx_http_request_t *r, |
| ngx_dir_t *dir, ngx_str_t *name); |
| static ngx_int_t ngx_http_autoindex_init(ngx_conf_t *cf); |
| static void *ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf); |
| static char *ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf, |
| void *parent, void *child); |
| |
| |
| static ngx_command_t ngx_http_autoindex_commands[] = { |
| |
| { ngx_string("autoindex"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_autoindex_loc_conf_t, enable), |
| NULL }, |
| |
| { ngx_string("autoindex_localtime"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_autoindex_loc_conf_t, localtime), |
| NULL }, |
| |
| { ngx_string("autoindex_exact_size"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_autoindex_loc_conf_t, exact_size), |
| NULL }, |
| |
| ngx_null_command |
| }; |
| |
| |
| static ngx_http_module_t ngx_http_autoindex_module_ctx = { |
| NULL, /* preconfiguration */ |
| ngx_http_autoindex_init, /* postconfiguration */ |
| |
| NULL, /* create main configuration */ |
| NULL, /* init main configuration */ |
| |
| NULL, /* create server configuration */ |
| NULL, /* merge server configuration */ |
| |
| ngx_http_autoindex_create_loc_conf, /* create location configuration */ |
| ngx_http_autoindex_merge_loc_conf /* merge location configuration */ |
| }; |
| |
| |
| ngx_module_t ngx_http_autoindex_module = { |
| NGX_MODULE_V1, |
| &ngx_http_autoindex_module_ctx, /* module context */ |
| ngx_http_autoindex_commands, /* module directives */ |
| NGX_HTTP_MODULE, /* module type */ |
| NULL, /* init master */ |
| NULL, /* init module */ |
| NULL, /* init process */ |
| NULL, /* init thread */ |
| NULL, /* exit thread */ |
| NULL, /* exit process */ |
| NULL, /* exit master */ |
| NGX_MODULE_V1_PADDING |
| }; |
| |
| |
| static u_char title[] = |
| "<html>" CRLF |
| "<head><title>Index of " |
| ; |
| |
| |
| static u_char header[] = |
| "</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<h1>Index of " |
| ; |
| |
| static u_char tail[] = |
| "</body>" CRLF |
| "</html>" CRLF |
| ; |
| |
| |
| static ngx_int_t |
| ngx_http_autoindex_handler(ngx_http_request_t *r) |
| { |
| u_char *last, *filename, scale; |
| off_t length; |
| size_t len, char_len, escape_html, allocated, root; |
| ngx_tm_t tm; |
| ngx_err_t err; |
| ngx_buf_t *b; |
| ngx_int_t rc, size; |
| ngx_str_t path; |
| ngx_dir_t dir; |
| ngx_uint_t i, level, utf8; |
| ngx_pool_t *pool; |
| ngx_time_t *tp; |
| ngx_chain_t out; |
| ngx_array_t entries; |
| ngx_http_autoindex_entry_t *entry; |
| ngx_http_autoindex_loc_conf_t *alcf; |
| |
| static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", |
| "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; |
| |
| if (r->uri.data[r->uri.len - 1] != '/') { |
| return NGX_DECLINED; |
| } |
| |
| if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
| return NGX_DECLINED; |
| } |
| |
| alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module); |
| |
| if (!alcf->enable) { |
| return NGX_DECLINED; |
| } |
| |
| /* NGX_DIR_MASK_LEN is lesser than NGX_HTTP_AUTOINDEX_PREALLOCATE */ |
| |
| last = ngx_http_map_uri_to_path(r, &path, &root, |
| NGX_HTTP_AUTOINDEX_PREALLOCATE); |
| if (last == NULL) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| allocated = path.len; |
| path.len = last - path.data; |
| if (path.len > 1) { |
| path.len--; |
| } |
| path.data[path.len] = '\0'; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http autoindex: \"%s\"", path.data); |
| |
| if (ngx_open_dir(&path, &dir) == NGX_ERROR) { |
| err = ngx_errno; |
| |
| if (err == NGX_ENOENT |
| || err == NGX_ENOTDIR |
| || err == NGX_ENAMETOOLONG) |
| { |
| level = NGX_LOG_ERR; |
| rc = NGX_HTTP_NOT_FOUND; |
| |
| } else if (err == NGX_EACCES) { |
| level = NGX_LOG_ERR; |
| rc = NGX_HTTP_FORBIDDEN; |
| |
| } else { |
| level = NGX_LOG_CRIT; |
| rc = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| ngx_log_error(level, r->connection->log, err, |
| ngx_open_dir_n " \"%s\" failed", path.data); |
| |
| return rc; |
| } |
| |
| #if (NGX_SUPPRESS_WARN) |
| |
| /* MSVC thinks 'entries' may be used without having been initialized */ |
| ngx_memzero(&entries, sizeof(ngx_array_t)); |
| |
| #endif |
| |
| /* TODO: pool should be temporary pool */ |
| pool = r->pool; |
| |
| if (ngx_array_init(&entries, pool, 40, sizeof(ngx_http_autoindex_entry_t)) |
| != NGX_OK) |
| { |
| return ngx_http_autoindex_error(r, &dir, &path); |
| } |
| |
| r->headers_out.status = NGX_HTTP_OK; |
| r->headers_out.content_type_len = sizeof("text/html") - 1; |
| ngx_str_set(&r->headers_out.content_type, "text/html"); |
| r->headers_out.content_type_lowcase = NULL; |
| |
| rc = ngx_http_send_header(r); |
| |
| if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { |
| if (ngx_close_dir(&dir) == NGX_ERROR) { |
| ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno, |
| ngx_close_dir_n " \"%V\" failed", &path); |
| } |
| |
| return rc; |
| } |
| |
| filename = path.data; |
| filename[path.len] = '/'; |
| |
| if (r->headers_out.charset.len == 5 |
| && ngx_strncasecmp(r->headers_out.charset.data, (u_char *) "utf-8", 5) |
| == 0) |
| { |
| utf8 = 1; |
| |
| } else { |
| utf8 = 0; |
| } |
| |
| for ( ;; ) { |
| ngx_set_errno(0); |
| |
| if (ngx_read_dir(&dir) == NGX_ERROR) { |
| err = ngx_errno; |
| |
| if (err != NGX_ENOMOREFILES) { |
| ngx_log_error(NGX_LOG_CRIT, r->connection->log, err, |
| ngx_read_dir_n " \"%V\" failed", &path); |
| return ngx_http_autoindex_error(r, &dir, &path); |
| } |
| |
| break; |
| } |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http autoindex file: \"%s\"", ngx_de_name(&dir)); |
| |
| len = ngx_de_namelen(&dir); |
| |
| if (ngx_de_name(&dir)[0] == '.') { |
| continue; |
| } |
| |
| if (!dir.valid_info) { |
| |
| /* 1 byte for '/' and 1 byte for terminating '\0' */ |
| |
| if (path.len + 1 + len + 1 > allocated) { |
| allocated = path.len + 1 + len + 1 |
| + NGX_HTTP_AUTOINDEX_PREALLOCATE; |
| |
| filename = ngx_pnalloc(pool, allocated); |
| if (filename == NULL) { |
| return ngx_http_autoindex_error(r, &dir, &path); |
| } |
| |
| last = ngx_cpystrn(filename, path.data, path.len + 1); |
| *last++ = '/'; |
| } |
| |
| ngx_cpystrn(last, ngx_de_name(&dir), len + 1); |
| |
| if (ngx_de_info(filename, &dir) == NGX_FILE_ERROR) { |
| err = ngx_errno; |
| |
| if (err != NGX_ENOENT && err != NGX_ELOOP) { |
| ngx_log_error(NGX_LOG_CRIT, r->connection->log, err, |
| ngx_de_info_n " \"%s\" failed", filename); |
| |
| if (err == NGX_EACCES) { |
| continue; |
| } |
| |
| return ngx_http_autoindex_error(r, &dir, &path); |
| } |
| |
| if (ngx_de_link_info(filename, &dir) == NGX_FILE_ERROR) { |
| ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, |
| ngx_de_link_info_n " \"%s\" failed", |
| filename); |
| return ngx_http_autoindex_error(r, &dir, &path); |
| } |
| } |
| } |
| |
| entry = ngx_array_push(&entries); |
| if (entry == NULL) { |
| return ngx_http_autoindex_error(r, &dir, &path); |
| } |
| |
| entry->name.len = len; |
| |
| entry->name.data = ngx_pnalloc(pool, len + 1); |
| if (entry->name.data == NULL) { |
| return ngx_http_autoindex_error(r, &dir, &path); |
| } |
| |
| ngx_cpystrn(entry->name.data, ngx_de_name(&dir), len + 1); |
| |
| entry->escape = 2 * ngx_escape_uri(NULL, ngx_de_name(&dir), len, |
| NGX_ESCAPE_URI_COMPONENT); |
| |
| entry->escape_html = ngx_escape_html(NULL, entry->name.data, |
| entry->name.len); |
| |
| if (utf8) { |
| entry->utf_len = ngx_utf8_length(entry->name.data, entry->name.len); |
| } else { |
| entry->utf_len = len; |
| } |
| |
| entry->dir = ngx_de_is_dir(&dir); |
| entry->mtime = ngx_de_mtime(&dir); |
| entry->size = ngx_de_size(&dir); |
| } |
| |
| if (ngx_close_dir(&dir) == NGX_ERROR) { |
| ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno, |
| ngx_close_dir_n " \"%V\" failed", &path); |
| } |
| |
| escape_html = ngx_escape_html(NULL, r->uri.data, r->uri.len); |
| |
| len = sizeof(title) - 1 |
| + r->uri.len + escape_html |
| + sizeof(header) - 1 |
| + r->uri.len + escape_html |
| + sizeof("</h1>") - 1 |
| + sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1 |
| + sizeof("</pre><hr>") - 1 |
| + sizeof(tail) - 1; |
| |
| entry = entries.elts; |
| for (i = 0; i < entries.nelts; i++) { |
| len += sizeof("<a href=\"") - 1 |
| + entry[i].name.len + entry[i].escape |
| + 1 /* 1 is for "/" */ |
| + sizeof("\">") - 1 |
| + entry[i].name.len - entry[i].utf_len |
| + entry[i].escape_html |
| + NGX_HTTP_AUTOINDEX_NAME_LEN + sizeof(">") - 2 |
| + sizeof("</a>") - 1 |
| + sizeof(" 28-Sep-1970 12:00 ") - 1 |
| + 20 /* the file size */ |
| + 2; |
| } |
| |
| b = ngx_create_temp_buf(r->pool, len); |
| if (b == NULL) { |
| return NGX_ERROR; |
| } |
| |
| if (entries.nelts > 1) { |
| ngx_qsort(entry, (size_t) entries.nelts, |
| sizeof(ngx_http_autoindex_entry_t), |
| ngx_http_autoindex_cmp_entries); |
| } |
| |
| b->last = ngx_cpymem(b->last, title, sizeof(title) - 1); |
| |
| if (escape_html) { |
| b->last = (u_char *) ngx_escape_html(b->last, r->uri.data, r->uri.len); |
| b->last = ngx_cpymem(b->last, header, sizeof(header) - 1); |
| b->last = (u_char *) ngx_escape_html(b->last, r->uri.data, r->uri.len); |
| |
| } else { |
| b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len); |
| b->last = ngx_cpymem(b->last, header, sizeof(header) - 1); |
| b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len); |
| } |
| |
| b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1); |
| |
| b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF, |
| sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1); |
| |
| tp = ngx_timeofday(); |
| |
| for (i = 0; i < entries.nelts; i++) { |
| b->last = ngx_cpymem(b->last, "<a href=\"", sizeof("<a href=\"") - 1); |
| |
| if (entry[i].escape) { |
| ngx_escape_uri(b->last, entry[i].name.data, entry[i].name.len, |
| NGX_ESCAPE_URI_COMPONENT); |
| |
| b->last += entry[i].name.len + entry[i].escape; |
| |
| } else { |
| b->last = ngx_cpymem(b->last, entry[i].name.data, |
| entry[i].name.len); |
| } |
| |
| if (entry[i].dir) { |
| *b->last++ = '/'; |
| } |
| |
| *b->last++ = '"'; |
| *b->last++ = '>'; |
| |
| len = entry[i].utf_len; |
| |
| if (entry[i].name.len != len) { |
| if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) { |
| char_len = NGX_HTTP_AUTOINDEX_NAME_LEN - 3 + 1; |
| |
| } else { |
| char_len = NGX_HTTP_AUTOINDEX_NAME_LEN + 1; |
| } |
| |
| last = b->last; |
| b->last = ngx_utf8_cpystrn(b->last, entry[i].name.data, |
| char_len, entry[i].name.len + 1); |
| |
| if (entry[i].escape_html) { |
| b->last = (u_char *) ngx_escape_html(last, entry[i].name.data, |
| b->last - last); |
| } |
| |
| last = b->last; |
| |
| } else { |
| if (entry[i].escape_html) { |
| if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) { |
| char_len = NGX_HTTP_AUTOINDEX_NAME_LEN - 3; |
| |
| } else { |
| char_len = len; |
| } |
| |
| b->last = (u_char *) ngx_escape_html(b->last, |
| entry[i].name.data, char_len); |
| last = b->last; |
| |
| } else { |
| b->last = ngx_cpystrn(b->last, entry[i].name.data, |
| NGX_HTTP_AUTOINDEX_NAME_LEN + 1); |
| last = b->last - 3; |
| } |
| } |
| |
| if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) { |
| b->last = ngx_cpymem(last, "..></a>", sizeof("..></a>") - 1); |
| |
| } else { |
| if (entry[i].dir && NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) { |
| *b->last++ = '/'; |
| len++; |
| } |
| |
| b->last = ngx_cpymem(b->last, "</a>", sizeof("</a>") - 1); |
| |
| if (NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) { |
| ngx_memset(b->last, ' ', NGX_HTTP_AUTOINDEX_NAME_LEN - len); |
| b->last += NGX_HTTP_AUTOINDEX_NAME_LEN - len; |
| } |
| } |
| |
| *b->last++ = ' '; |
| |
| ngx_gmtime(entry[i].mtime + tp->gmtoff * 60 * alcf->localtime, &tm); |
| |
| b->last = ngx_sprintf(b->last, "%02d-%s-%d %02d:%02d ", |
| tm.ngx_tm_mday, |
| months[tm.ngx_tm_mon - 1], |
| tm.ngx_tm_year, |
| tm.ngx_tm_hour, |
| tm.ngx_tm_min); |
| |
| if (alcf->exact_size) { |
| if (entry[i].dir) { |
| b->last = ngx_cpymem(b->last, " -", |
| sizeof(" -") - 1); |
| } else { |
| b->last = ngx_sprintf(b->last, "%19O", entry[i].size); |
| } |
| |
| } else { |
| if (entry[i].dir) { |
| b->last = ngx_cpymem(b->last, " -", |
| sizeof(" -") - 1); |
| |
| } else { |
| length = entry[i].size; |
| |
| if (length > 1024 * 1024 * 1024 - 1) { |
| size = (ngx_int_t) (length / (1024 * 1024 * 1024)); |
| if ((length % (1024 * 1024 * 1024)) |
| > (1024 * 1024 * 1024 / 2 - 1)) |
| { |
| size++; |
| } |
| scale = 'G'; |
| |
| } else if (length > 1024 * 1024 - 1) { |
| size = (ngx_int_t) (length / (1024 * 1024)); |
| if ((length % (1024 * 1024)) > (1024 * 1024 / 2 - 1)) { |
| size++; |
| } |
| scale = 'M'; |
| |
| } else if (length > 9999) { |
| size = (ngx_int_t) (length / 1024); |
| if (length % 1024 > 511) { |
| size++; |
| } |
| scale = 'K'; |
| |
| } else { |
| size = (ngx_int_t) length; |
| scale = '\0'; |
| } |
| |
| if (scale) { |
| b->last = ngx_sprintf(b->last, "%6i%c", size, scale); |
| |
| } else { |
| b->last = ngx_sprintf(b->last, " %6i", size); |
| } |
| } |
| } |
| |
| *b->last++ = CR; |
| *b->last++ = LF; |
| } |
| |
| /* TODO: free temporary pool */ |
| |
| b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1); |
| |
| b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1); |
| |
| if (r == r->main) { |
| b->last_buf = 1; |
| } |
| |
| b->last_in_chain = 1; |
| |
| out.buf = b; |
| out.next = NULL; |
| |
| return ngx_http_output_filter(r, &out); |
| } |
| |
| |
| static int ngx_libc_cdecl |
| ngx_http_autoindex_cmp_entries(const void *one, const void *two) |
| { |
| ngx_http_autoindex_entry_t *first = (ngx_http_autoindex_entry_t *) one; |
| ngx_http_autoindex_entry_t *second = (ngx_http_autoindex_entry_t *) two; |
| |
| if (first->dir && !second->dir) { |
| /* move the directories to the start */ |
| return -1; |
| } |
| |
| if (!first->dir && second->dir) { |
| /* move the directories to the start */ |
| return 1; |
| } |
| |
| return (int) ngx_strcmp(first->name.data, second->name.data); |
| } |
| |
| |
| #if 0 |
| |
| static ngx_buf_t * |
| ngx_http_autoindex_alloc(ngx_http_autoindex_ctx_t *ctx, size_t size) |
| { |
| ngx_chain_t *cl; |
| |
| if (ctx->buf) { |
| |
| if ((size_t) (ctx->buf->end - ctx->buf->last) >= size) { |
| return ctx->buf; |
| } |
| |
| ctx->size += ctx->buf->last - ctx->buf->pos; |
| } |
| |
| ctx->buf = ngx_create_temp_buf(ctx->pool, ctx->alloc_size); |
| if (ctx->buf == NULL) { |
| return NULL; |
| } |
| |
| cl = ngx_alloc_chain_link(ctx->pool); |
| if (cl == NULL) { |
| return NULL; |
| } |
| |
| cl->buf = ctx->buf; |
| cl->next = NULL; |
| |
| *ctx->last_out = cl; |
| ctx->last_out = &cl->next; |
| |
| return ctx->buf; |
| } |
| |
| #endif |
| |
| |
| static ngx_int_t |
| ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir, ngx_str_t *name) |
| { |
| if (ngx_close_dir(dir) == NGX_ERROR) { |
| ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno, |
| ngx_close_dir_n " \"%V\" failed", name); |
| } |
| |
| return r->header_sent ? NGX_ERROR : NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| |
| 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 NULL; |
| } |
| |
| conf->enable = NGX_CONF_UNSET; |
| conf->localtime = NGX_CONF_UNSET; |
| conf->exact_size = 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); |
| ngx_conf_merge_value(conf->localtime, prev->localtime, 0); |
| ngx_conf_merge_value(conf->exact_size, prev->exact_size, 1); |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_autoindex_init(ngx_conf_t *cf) |
| { |
| ngx_http_handler_pt *h; |
| ngx_http_core_main_conf_t *cmcf; |
| |
| cmcf = ngx_http_conf_get_module_main_conf(cf, 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; |
| } |