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| /* | |
| * 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; | |
| unsigned file:1; | |
| time_t mtime; | |
| off_t size; | |
| } ngx_http_autoindex_entry_t; | |
| typedef struct { | |
| ngx_flag_t enable; | |
| ngx_uint_t format; | |
| ngx_flag_t localtime; | |
| ngx_flag_t exact_size; | |
| } ngx_http_autoindex_loc_conf_t; | |
| #define NGX_HTTP_AUTOINDEX_HTML 0 | |
| #define NGX_HTTP_AUTOINDEX_JSON 1 | |
| #define NGX_HTTP_AUTOINDEX_JSONP 2 | |
| #define NGX_HTTP_AUTOINDEX_XML 3 | |
| #define NGX_HTTP_AUTOINDEX_PREALLOCATE 50 | |
| #define NGX_HTTP_AUTOINDEX_NAME_LEN 50 | |
| static ngx_buf_t *ngx_http_autoindex_html(ngx_http_request_t *r, | |
| ngx_array_t *entries); | |
| static ngx_buf_t *ngx_http_autoindex_json(ngx_http_request_t *r, | |
| ngx_array_t *entries, ngx_str_t *callback); | |
| static ngx_int_t ngx_http_autoindex_jsonp_callback(ngx_http_request_t *r, | |
| ngx_str_t *callback); | |
| static ngx_buf_t *ngx_http_autoindex_xml(ngx_http_request_t *r, | |
| ngx_array_t *entries); | |
| 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_conf_enum_t ngx_http_autoindex_format[] = { | |
| { ngx_string("html"), NGX_HTTP_AUTOINDEX_HTML }, | |
| { ngx_string("json"), NGX_HTTP_AUTOINDEX_JSON }, | |
| { ngx_string("jsonp"), NGX_HTTP_AUTOINDEX_JSONP }, | |
| { ngx_string("xml"), NGX_HTTP_AUTOINDEX_XML }, | |
| { ngx_null_string, 0 } | |
| }; | |
| 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_format"), | |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_enum_slot, | |
| NGX_HTTP_LOC_CONF_OFFSET, | |
| offsetof(ngx_http_autoindex_loc_conf_t, format), | |
| &ngx_http_autoindex_format }, | |
| { 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 ngx_int_t | |
| ngx_http_autoindex_handler(ngx_http_request_t *r) | |
| { | |
| u_char *last, *filename; | |
| size_t len, allocated, root; | |
| ngx_err_t err; | |
| ngx_buf_t *b; | |
| ngx_int_t rc; | |
| ngx_str_t path, callback; | |
| ngx_dir_t dir; | |
| ngx_uint_t level, format; | |
| ngx_pool_t *pool; | |
| ngx_chain_t out; | |
| ngx_array_t entries; | |
| ngx_http_autoindex_entry_t *entry; | |
| ngx_http_autoindex_loc_conf_t *alcf; | |
| 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; | |
| } | |
| rc = ngx_http_discard_request_body(r); | |
| if (rc != NGX_OK) { | |
| return rc; | |
| } | |
| 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); | |
| format = alcf->format; | |
| if (format == NGX_HTTP_AUTOINDEX_JSONP) { | |
| if (ngx_http_autoindex_jsonp_callback(r, &callback) != NGX_OK) { | |
| return NGX_HTTP_BAD_REQUEST; | |
| } | |
| if (callback.len == 0) { | |
| format = NGX_HTTP_AUTOINDEX_JSON; | |
| } | |
| } | |
| 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; | |
| switch (format) { | |
| case NGX_HTTP_AUTOINDEX_JSON: | |
| ngx_str_set(&r->headers_out.content_type, "application/json"); | |
| break; | |
| case NGX_HTTP_AUTOINDEX_JSONP: | |
| ngx_str_set(&r->headers_out.content_type, "application/javascript"); | |
| break; | |
| case NGX_HTTP_AUTOINDEX_XML: | |
| ngx_str_set(&r->headers_out.content_type, "text/xml"); | |
| ngx_str_set(&r->headers_out.charset, "utf-8"); | |
| break; | |
| default: /* NGX_HTTP_AUTOINDEX_HTML */ | |
| ngx_str_set(&r->headers_out.content_type, "text/html"); | |
| break; | |
| } | |
| r->headers_out.content_type_len = r->headers_out.content_type.len; | |
| 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] = '/'; | |
| 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->dir = ngx_de_is_dir(&dir); | |
| entry->file = ngx_de_is_file(&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); | |
| } | |
| if (entries.nelts > 1) { | |
| ngx_qsort(entries.elts, (size_t) entries.nelts, | |
| sizeof(ngx_http_autoindex_entry_t), | |
| ngx_http_autoindex_cmp_entries); | |
| } | |
| switch (format) { | |
| case NGX_HTTP_AUTOINDEX_JSON: | |
| b = ngx_http_autoindex_json(r, &entries, NULL); | |
| break; | |
| case NGX_HTTP_AUTOINDEX_JSONP: | |
| b = ngx_http_autoindex_json(r, &entries, &callback); | |
| break; | |
| case NGX_HTTP_AUTOINDEX_XML: | |
| b = ngx_http_autoindex_xml(r, &entries); | |
| break; | |
| default: /* NGX_HTTP_AUTOINDEX_HTML */ | |
| b = ngx_http_autoindex_html(r, &entries); | |
| break; | |
| } | |
| if (b == NULL) { | |
| return NGX_ERROR; | |
| } | |
| /* TODO: free temporary pool */ | |
| 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 ngx_buf_t * | |
| ngx_http_autoindex_html(ngx_http_request_t *r, ngx_array_t *entries) | |
| { | |
| u_char *last, scale; | |
| off_t length; | |
| size_t len, entry_len, char_len, escape_html; | |
| ngx_tm_t tm; | |
| ngx_buf_t *b; | |
| ngx_int_t size; | |
| ngx_uint_t i, utf8; | |
| ngx_time_t *tp; | |
| ngx_http_autoindex_entry_t *entry; | |
| ngx_http_autoindex_loc_conf_t *alcf; | |
| static u_char title[] = | |
| "<html>" CRLF | |
| "<head><title>Index of " | |
| ; | |
| static u_char header[] = | |
| "</title></head>" CRLF | |
| "<body>" CRLF | |
| "<h1>Index of " | |
| ; | |
| static u_char tail[] = | |
| "</body>" CRLF | |
| "</html>" CRLF | |
| ; | |
| static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
| "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; | |
| 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; | |
| } | |
| 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++) { | |
| entry[i].escape = 2 * ngx_escape_uri(NULL, entry[i].name.data, | |
| entry[i].name.len, | |
| NGX_ESCAPE_URI_COMPONENT); | |
| entry[i].escape_html = ngx_escape_html(NULL, entry[i].name.data, | |
| entry[i].name.len); | |
| if (utf8) { | |
| entry[i].utf_len = ngx_utf8_length(entry[i].name.data, | |
| entry[i].name.len); | |
| } else { | |
| entry[i].utf_len = entry[i].name.len; | |
| } | |
| entry_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; | |
| if (len > NGX_MAX_SIZE_T_VALUE - entry_len) { | |
| return NULL; | |
| } | |
| len += entry_len; | |
| } | |
| b = ngx_create_temp_buf(r->pool, len); | |
| if (b == NULL) { | |
| return NULL; | |
| } | |
| 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); | |
| alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module); | |
| 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; | |
| } | |
| b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1); | |
| b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1); | |
| return b; | |
| } | |
| static ngx_buf_t * | |
| ngx_http_autoindex_json(ngx_http_request_t *r, ngx_array_t *entries, | |
| ngx_str_t *callback) | |
| { | |
| size_t len, entry_len; | |
| ngx_buf_t *b; | |
| ngx_uint_t i; | |
| ngx_http_autoindex_entry_t *entry; | |
| len = sizeof("[" CRLF CRLF "]") - 1; | |
| if (callback) { | |
| len += sizeof("/* callback */" CRLF "();") - 1 + callback->len; | |
| } | |
| entry = entries->elts; | |
| for (i = 0; i < entries->nelts; i++) { | |
| entry[i].escape = ngx_escape_json(NULL, entry[i].name.data, | |
| entry[i].name.len); | |
| entry_len = sizeof("{ }," CRLF) - 1 | |
| + sizeof("\"name\":\"\"") - 1 | |
| + entry[i].name.len + entry[i].escape | |
| + sizeof(", \"type\":\"directory\"") - 1 | |
| + sizeof(", \"mtime\":\"Wed, 31 Dec 1986 10:00:00 GMT\"") - 1; | |
| if (entry[i].file) { | |
| entry_len += sizeof(", \"size\":") - 1 + NGX_OFF_T_LEN; | |
| } | |
| if (len > NGX_MAX_SIZE_T_VALUE - entry_len) { | |
| return NULL; | |
| } | |
| len += entry_len; | |
| } | |
| b = ngx_create_temp_buf(r->pool, len); | |
| if (b == NULL) { | |
| return NULL; | |
| } | |
| if (callback) { | |
| b->last = ngx_cpymem(b->last, "/* callback */" CRLF, | |
| sizeof("/* callback */" CRLF) - 1); | |
| b->last = ngx_cpymem(b->last, callback->data, callback->len); | |
| *b->last++ = '('; | |
| } | |
| *b->last++ = '['; | |
| for (i = 0; i < entries->nelts; i++) { | |
| b->last = ngx_cpymem(b->last, CRLF "{ \"name\":\"", | |
| sizeof(CRLF "{ \"name\":\"") - 1); | |
| if (entry[i].escape) { | |
| b->last = (u_char *) ngx_escape_json(b->last, entry[i].name.data, | |
| entry[i].name.len); | |
| } else { | |
| b->last = ngx_cpymem(b->last, entry[i].name.data, | |
| entry[i].name.len); | |
| } | |
| b->last = ngx_cpymem(b->last, "\", \"type\":\"", | |
| sizeof("\", \"type\":\"") - 1); | |
| if (entry[i].dir) { | |
| b->last = ngx_cpymem(b->last, "directory", sizeof("directory") - 1); | |
| } else if (entry[i].file) { | |
| b->last = ngx_cpymem(b->last, "file", sizeof("file") - 1); | |
| } else { | |
| b->last = ngx_cpymem(b->last, "other", sizeof("other") - 1); | |
| } | |
| b->last = ngx_cpymem(b->last, "\", \"mtime\":\"", | |
| sizeof("\", \"mtime\":\"") - 1); | |
| b->last = ngx_http_time(b->last, entry[i].mtime); | |
| if (entry[i].file) { | |
| b->last = ngx_cpymem(b->last, "\", \"size\":", | |
| sizeof("\", \"size\":") - 1); | |
| b->last = ngx_sprintf(b->last, "%O", entry[i].size); | |
| } else { | |
| *b->last++ = '"'; | |
| } | |
| b->last = ngx_cpymem(b->last, " },", sizeof(" },") - 1); | |
| } | |
| if (i > 0) { | |
| b->last--; /* strip last comma */ | |
| } | |
| b->last = ngx_cpymem(b->last, CRLF "]", sizeof(CRLF "]") - 1); | |
| if (callback) { | |
| *b->last++ = ')'; *b->last++ = ';'; | |
| } | |
| return b; | |
| } | |
| static ngx_int_t | |
| ngx_http_autoindex_jsonp_callback(ngx_http_request_t *r, ngx_str_t *callback) | |
| { | |
| u_char *p, c, ch; | |
| ngx_uint_t i; | |
| if (ngx_http_arg(r, (u_char *) "callback", 8, callback) != NGX_OK) { | |
| callback->len = 0; | |
| return NGX_OK; | |
| } | |
| if (callback->len > 128) { | |
| ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, | |
| "client sent too long callback name: \"%V\"", callback); | |
| return NGX_DECLINED; | |
| } | |
| p = callback->data; | |
| for (i = 0; i < callback->len; i++) { | |
| ch = p[i]; | |
| c = (u_char) (ch | 0x20); | |
| if (c >= 'a' && c <= 'z') { | |
| continue; | |
| } | |
| if ((ch >= '0' && ch <= '9') || ch == '_' || ch == '.') { | |
| continue; | |
| } | |
| ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, | |
| "client sent invalid callback name: \"%V\"", callback); | |
| return NGX_DECLINED; | |
| } | |
| return NGX_OK; | |
| } | |
| static ngx_buf_t * | |
| ngx_http_autoindex_xml(ngx_http_request_t *r, ngx_array_t *entries) | |
| { | |
| size_t len, entry_len; | |
| ngx_tm_t tm; | |
| ngx_buf_t *b; | |
| ngx_str_t type; | |
| ngx_uint_t i; | |
| ngx_http_autoindex_entry_t *entry; | |
| static u_char head[] = "<?xml version=\"1.0\"?>" CRLF "<list>" CRLF; | |
| static u_char tail[] = "</list>" CRLF; | |
| len = sizeof(head) - 1 + sizeof(tail) - 1; | |
| entry = entries->elts; | |
| for (i = 0; i < entries->nelts; i++) { | |
| entry[i].escape = ngx_escape_html(NULL, entry[i].name.data, | |
| entry[i].name.len); | |
| entry_len = sizeof("<directory></directory>" CRLF) - 1 | |
| + entry[i].name.len + entry[i].escape | |
| + sizeof(" mtime=\"1986-12-31T10:00:00Z\"") - 1; | |
| if (entry[i].file) { | |
| entry_len += sizeof(" size=\"\"") - 1 + NGX_OFF_T_LEN; | |
| } | |
| if (len > NGX_MAX_SIZE_T_VALUE - entry_len) { | |
| return NULL; | |
| } | |
| len += entry_len; | |
| } | |
| b = ngx_create_temp_buf(r->pool, len); | |
| if (b == NULL) { | |
| return NULL; | |
| } | |
| b->last = ngx_cpymem(b->last, head, sizeof(head) - 1); | |
| for (i = 0; i < entries->nelts; i++) { | |
| *b->last++ = '<'; | |
| if (entry[i].dir) { | |
| ngx_str_set(&type, "directory"); | |
| } else if (entry[i].file) { | |
| ngx_str_set(&type, "file"); | |
| } else { | |
| ngx_str_set(&type, "other"); | |
| } | |
| b->last = ngx_cpymem(b->last, type.data, type.len); | |
| b->last = ngx_cpymem(b->last, " mtime=\"", sizeof(" mtime=\"") - 1); | |
| ngx_gmtime(entry[i].mtime, &tm); | |
| b->last = ngx_sprintf(b->last, "%4d-%02d-%02dT%02d:%02d:%02dZ", | |
| tm.ngx_tm_year, tm.ngx_tm_mon, | |
| tm.ngx_tm_mday, tm.ngx_tm_hour, | |
| tm.ngx_tm_min, tm.ngx_tm_sec); | |
| if (entry[i].file) { | |
| b->last = ngx_cpymem(b->last, "\" size=\"", | |
| sizeof("\" size=\"") - 1); | |
| b->last = ngx_sprintf(b->last, "%O", entry[i].size); | |
| } | |
| *b->last++ = '"'; *b->last++ = '>'; | |
| if (entry[i].escape) { | |
| b->last = (u_char *) ngx_escape_html(b->last, entry[i].name.data, | |
| entry[i].name.len); | |
| } else { | |
| b->last = ngx_cpymem(b->last, entry[i].name.data, | |
| entry[i].name.len); | |
| } | |
| *b->last++ = '<'; *b->last++ = '/'; | |
| b->last = ngx_cpymem(b->last, type.data, type.len); | |
| *b->last++ = '>'; | |
| *b->last++ = CR; *b->last++ = LF; | |
| } | |
| b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1); | |
| return b; | |
| } | |
| 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->format = NGX_CONF_UNSET_UINT; | |
| 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_uint_value(conf->format, prev->format, | |
| NGX_HTTP_AUTOINDEX_HTML); | |
| 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; | |
| } |