diff options
Diffstat (limited to 'app/nginx/src/http/modules/ngx_http_autoindex_module.c')
-rw-r--r-- | app/nginx/src/http/modules/ngx_http_autoindex_module.c | 1050 |
1 files changed, 1050 insertions, 0 deletions
diff --git a/app/nginx/src/http/modules/ngx_http_autoindex_module.c b/app/nginx/src/http/modules/ngx_http_autoindex_module.c new file mode 100644 index 0000000..b3bf652 --- /dev/null +++ b/app/nginx/src/http/modules/ngx_http_autoindex_module.c @@ -0,0 +1,1050 @@ + +/* + * 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; + } + + /* 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); + + 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, 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 bgcolor=\"white\">" 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; + } + + 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 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; + 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); + + 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) { + len += sizeof(", \"size\":") - 1 + NGX_OFF_T_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; + 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); + + 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) { + len += sizeof(" size=\"\"") - 1 + NGX_OFF_T_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; +} |