Apache模块 mod_autoindex

说明	自动对目录中的内容生成列表，类似于"ls"或"dir"命令
状态	基本(B)
模块名	autoindex_module
源文件	mod_autoindex.c

概述

The index of a directory can come from one of two sources:

A file written by the user, typically called index.html. The DirectoryIndex directive sets the name of this file. This is controlled by mod_dir.
Otherwise, a listing generated by the server. The other directives control the format of this listing. The AddIcon, AddIconByEncoding和AddIconByType are used to set a list of icons to display for various file types; for each file listed, the first icon listed that matches the file is displayed. These are controlled by mod_autoindex.

The two functions are separated so that you can completely remove (or replace) automatic index generation should you want to.

Automatic index generation is enabled with using Options +Indexes. See the Options directive for more details.

If the FancyIndexing option is given with the IndexOptions directive, the column headers are links that control the order of the display. If you select a header link, the listing will be regenerated, sorted by the values in that column. Selecting the same header repeatedly toggles between ascending and descending order. These column header links are suppressed with IndexOptions directive's SuppressColumnSorting option.

Note that when the display is sorted by "Size", it's the actual size of the files that's used, not the displayed value - so a 1010-byte file will always be displayed before a 1011-byte file (if in ascending order) even though they both are shown as "1K".

IndexOptions IgnoreClient option was introduced.

The column sorting headers themselves are self-referencing hyperlinks that add the sort query options shown below. Any option below may be added to any request for the directory resource.

`C=N` sorts the directory by file name

`C=M` sorts the directory by last-modified date, then file name

`C=S` sorts the directory by size, then file name

`C=D` sorts the directory by description, then file name

`O=A` sorts the listing in Ascending Order

`O=D` sorts the listing in Descending Order

`F=0` formats the listing as a simple list (not FancyIndexed)

`F=1` formats the listing as a FancyIndexed list

`F=2` formats the listing as an HTMLTable FancyIndexed list

`V=0` disables version sorting

`V=1` enables version sorting

`P=pattern` lists only files matching the given `pattern`

Note that the 'P'attern query argument is tested after the usual `IndexIgnore` directives are processed, and all file names are still subjected to the same criteria as any other autoindex listing. The Query Arguments parser in `mod_autoindex` will stop abruptly when an unrecognized option is encountered. The Query Arguments must be well formed, according to the table above.

The simple example below, which can be clipped and saved in a header.html file, illustrates these query options. Note that the unknown "X" argument, for the submit button, is listed last to assure the arguments are all parsed before mod_autoindex encounters the X=Go input.

<form action="" method="get"> Show me a <select name="F"> <option value="0"> Plain list</option> <option value="1" selected="selected"> Fancy list</option> <option value="2"> Table list</option> </select> Sorted by <select name="C"> <option value="N" selected="selected"> Name</option> <option value="M"> Date Modified</option> <option value="S"> Size</option> <option value="D"> Description</option> </select> <select name="O"> <option value="A" selected="selected"> Ascending</option> <option value="D"> Descending</option> </select> <select name="V"> <option value="0" selected="selected"> in Normal order</option> <option value="1"> in Version order</option> </select> Matching <input type="text" name="P" value="*" /> <input type="submit" name="X" value="Go" /> </form>

说明 Alternate text to display for a file, instead of an icon selected by filename 语法 `AddAlt string file [file] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`AddAlt` provides the alternate text to display for a file, instead of an icon, for `FancyIndexing`. `File` is a file extension, partial filename, wild-card expression or full filename for files to describe. If `String` contains any whitespace, you have to enclose it in quotes (`"`或`'`). This alternate text is displayed if the client is image-incapable, has image loading disabled, or fails to retrieve the icon.

例子

`AddAlt "PDF file" .pdf AddAlt Compressed .gz .zip .Z`

说明 Alternate text to display for a file instead of an icon selected by MIME-encoding 语法 `AddAltByEncoding string MIME-encoding [MIME-encoding] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`AddAltByEncoding` provides the alternate text to display for a file, instead of an icon, for `FancyIndexing`. `MIME-encoding` is a valid content-encoding, such as `x-compress`. If `String` contains any whitespace, you have to enclose it in quotes (`"`或`'`). This alternate text is displayed if the client is image-incapable, has image loading disabled, or fails to retrieve the icon.

示例

`AddAltByEncoding gzip x-gzip`

说明 Alternate text to display for a file, instead of an icon selected by MIME content-type 语法 `AddAltByType string MIME-type [MIME-type] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`AddAltByType` sets the alternate text to display for a file, instead of an icon, for `FancyIndexing`. `MIME-type` is a valid content-type, such as `text/html`. If `String` contains any whitespace, you have to enclose it in quotes (`"`或`'`). This alternate text is displayed if the client is image-incapable, has image loading disabled, or fails to retrieve the icon.

示例

`AddAltByType 'plain text' text/plain`

说明 Description to display for a file 语法 `AddDescription string file [file] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
This sets the description to display for a file, for `FancyIndexing`. `File` is a file extension, partial filename, wild-card expression or full filename for files to describe. `String` is enclosed in double quotes (`"`).

示例

`AddDescription "The planet Mars" /web/pics/mars.gif`

The typical, default description field is 23 bytes wide. 6 more bytes are added by the `IndexOptions SuppressIcon` option, 7 bytes are added by the `IndexOptions SuppressSize` option, and 19 bytes are added by the `IndexOptions SuppressLastModified` option. Therefore, the widest default the description column is ever assigned is 55 bytes.

See the DescriptionWidth `IndexOptions` keyword for details on overriding the size of this column, or allowing descriptions of unlimited length.

Caution

Descriptive text defined with `AddDescription` may contain HTML markup, such as tags and character entities. If the width of the description column should happen to truncate a tagged element (such as cutting off the end of a bolded phrase), the results may affect the rest of the directory listing.

说明 Icon to display for a file selected by name 语法 `AddIcon icon name [name] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
This sets the icon to display next to a file ending in `name` for `FancyIndexing`. `Icon` is either a (%-escaped) relative URL to the icon, or of the format `(alttext, url)` where `alttext` is the text tag given for an icon for non-graphical browsers.

`Name` is either `^^DIRECTORY^^` for directories, `^^BLANKICON^^` for blank lines (to format the list correctly), a file extension, a wildcard expression, a partial filename or a complete filename.

例子

`AddIcon (IMG,/icons/image.xbm) .gif .jpg .xbm AddIcon /icons/dir.xbm ^^DIRECTORY^^ AddIcon /icons/backup.xbm *~`

`AddIconByType` should be used in preference to `AddIcon`, when possible.

说明 Icon to display next to files selected by MIME content-encoding 语法 `AddIconByEncoding icon MIME-encoding [MIME-encoding] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
This sets the icon to display next to files with `FancyIndexing`. `Icon` is either a (%-escaped) relative URL to the icon, or of the format `(alttext, url)` where `alttext` is the text tag given for an icon for non-graphical browsers.

`MIME-encoding` is a wildcard expression matching required the content-encoding.

示例

`AddIconByEncoding /icons/compress.xbm x-compress`

说明 Icon to display next to files selected by MIME content-type 语法 `AddIconByType icon MIME-type [MIME-type] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
This sets the icon to display next to files of type `MIME-type` for `FancyIndexing`. `Icon` is either a (%-escaped) relative URL to the icon, or of the format `(alttext, url)` where `alttext` is the text tag given for an icon for non-graphical browsers.

`MIME-type` is a wildcard expression matching required the mime types.

示例

`AddIconByType (IMG,/icons/image.xbm) image/*`

说明 Icon to display for files when no specific icon is configured 语法 `DefaultIcon url-path` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`DefaultIcon` directive sets the icon to display for files when no specific icon is known, for `FancyIndexing`. `Url-path` is a (%-escaped) relative URL to the icon.

示例

`DefaultIcon /icon/unknown.xbm`

说明 Name of the file that will be inserted at the top of the index listing 语法 `HeaderName filename` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`HeaderName` directive sets the name of the file that will be inserted at the top of the index listing. `Filename` is the name of the file to include.

示例

`HeaderName HEADER.html`

Both HeaderName and `ReadmeName` now treat `Filename` as a URI path relative to the one used to access the directory being indexed. If `Filename` begins with a slash, it will be taken to be relative to the `DocumentRoot`.

示例

`HeaderName /include/HEADER.html`

`Filename` must resolve to a document with a major content type of `text/*` (例如，`text/html`, `text/plain`, etc.). This means that `filename` may refer to a CGI script if the script's actual file type (as opposed to its output) is marked as `text/html` such as with a directive like:

`AddType text/html .cgi`

Content negotiation will be performed if `Options` `MultiViews` is in effect. If `filename` resolves to a static `text/html` document (not a CGI script) and either one of the `options` `Includes`或`IncludesNOEXEC` is enabled, the file will be processed for server-side includes (see the `mod_include` documentation).

If the file specified by `HeaderName` contains the beginnings of an HTML document (<html>, <head>, etc.) then you will probably want to set `IndexOptions +SuppressHTMLPreamble`, so that these tags are not repeated.

说明 Adds to the list of files to hide when listing a directory 语法 `IndexIgnore file [file] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`IndexIgnore` directive adds to the list of files to hide when listing a directory. `File` is a shell-style wildcard expression or full filename. Multiple IndexIgnore directives add to the list, rather than the replacing the list of ignored files. By default, the list contains `.` (the current directory).

`IndexIgnore README .htaccess .bak ~`

说明 Various configuration settings for directory indexing 语法 `IndexOptions [+|-]option [[+|-]option] ...` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`IndexOptions` directive specifies the behavior of the directory indexing. `Option` can be one of

DescriptionWidth=[`n` | ] (Apache 2.0.23 and later)

The `DescriptionWidth` keyword allows you to specify the width of the description column in characters.

`-DescriptionWidth` (or unset) allows `mod_autoindex` to calculate the best width.

`DescriptionWidth=n` fixes the column width to `n` bytes wide.

`DescriptionWidth=` grows the column to the width necessary to accommodate the longest description string.

See the section on `AddDescription` for dangers inherent in truncating descriptions.

`FancyIndexing` is also enabled.
HTMLTable (Experimental, Apache 2.0.23 and later)

This experimental option with FancyIndexing constructs a simple table for the fancy directory listing. Note this will confuse older browsers. It is particularly necessary if file names or description text will alternate between left-to-right and right-to-left reading order, as can happen on WinNT or other utf-8 enabled platforms.

IconsAreLinks

This makes the icons part of the anchor for the filename, for fancy indexing.

IconHeight[=`pixels`]

Presence of this option, when used with IconWidth, will cause the server to include `height`和`width` attributes in the `img` tag for the file icon. This allows browser to precalculate the page layout without having to wait until all the images have been loaded. If no value is given for the option, it defaults to the standard height of the icons supplied with the Apache software.

IconWidth[=`pixels`]

Presence of this option, when used with `IconHeight`, will cause the server to include `height`和`width` attributes in the `img` tag for the file icon. This allows browser to precalculate the page layout without having to wait until all the images have been loaded. If no value is given for the option, it defaults to the standard width of the icons supplied with the Apache software.

IgnoreCase

If this option is enabled, names are sorted in a case-insensitive manner. For instance, if the sort order is ascending by name, and IgnoreCase is enabled, file Zeta will be listed after file alfa (Note: file GAMMA will always be listed before file gamma).

IgnoreClient

This option causes `mod_autoindex` to ignore all query variables from the client, including sort order (implies `SuppressColumnSorting`.)

NameWidth=[`n` | ]

The `NameWidth` keyword allows you to specify the width of the filename column in bytes.

`-NameWidth` (or unset) allows `mod_autoindex` to calculate the best width.

`NameWidth=n` fixes the column width to `n` bytes wide.

`NameWidth=` grows the column to the necessary width.

ScanHTMLTitles

This enables the extraction of the title from HTML documents for fancy indexing. If the file does not have a description given by `AddDescription` then httpd will read the document for the value of the `title` element. This is CPU and disk intensive.

IndexOptions IgnoreClient in Apache 2.0.23.
SuppressDescription

This will suppress the file description in fancy indexing listings. By default, no file descriptions are defined, and so the use of this option will regain 23 characters of screen space to use for something else. See `AddDescription` for information about setting the file description. See also the `DescriptionWidth` index option to limit the size of the description column.

HeaderName directive, the module usually includes the contents of the file after a standard HTML preamble (`<html>`, `<head>`, et cetera). The `SuppressHTMLPreamble` option disables this behaviour, causing the module to start the display with the header file contents. The header file must contain appropriate HTML instructions in this case. If there is no header file, the preamble is generated as usual.
SuppressIcon (Apache 2.0.23 and later)

This will suppress the icon in fancy indexing listings. Combining both `SuppressIcon`和`SuppressRules` yields proper HTML 3.2 output, which by the final specification prohibits `img`和`hr` elements from the `pre` block (used to format FancyIndexed listings.)

SuppressLastModified

This will suppress the display of the last modification date, in fancy indexing listings.

SuppressRules (Apache 2.0.23 and later)

This will suppress the horizontal rule lines (`hr` elements) in directory listings. Combining both `SuppressIcon`和`SuppressRules` yields proper HTML 3.2 output, which by the final specification prohibits `img`和`hr` elements from the `pre` block (used to format FancyIndexed listings.)

SuppressSize

This will suppress the file size in fancy indexing listings.

TrackModified (Apache 2.0.23 and later)

This returns the Last-Modified and ETag values for the listed directory in the HTTP header. It is only valid if the operating system and file system return appropriate stat() results. Some Unix systems do so, as do OS2's JFS and Win32's NTFS volumes. OS2 and Win32 FAT volumes, for example, do not. Once this feature is enabled, the client or proxy can track changes to the list of files when they perform a `HEAD` request. Note some operating systems correctly track new and removed files, but do not track changes for sizes or dates of the files within the directory. Changes to the size or date stamp of an existing file will not update the Last-Modified header on all Unix platforms. If this is a concern, leave this option disabled.

VersionSort (Apache 2.0a3 and later)

The `VersionSort` keyword causes files containing version numbers to sort in a natural way. Strings are sorted as usual, except that substrings of digits in the name and description are compared according to their numeric value.

示例：

`foo-1.7 foo-1.7.2 foo-1.7.12 foo-1.8.2 foo-1.8.2a foo-1.12`

If the number starts with a zero, then it is considered to be a fraction:

`foo-1.001 foo-1.002 foo-1.030 foo-1.04`

XHTML (Apache 2.0.49 and later)

The `XHTML` keyword forces `mod_autoindex` to emit XHTML 1.0 code instead of HTML 3.2.

Incremental IndexOptions

Apache 1.3.3 introduced some significant changes in the handling of `IndexOptions` directives. In particular:

Multiple `IndexOptions` directives for a single directory are now merged together. The result of:
`<Directory /foo> IndexOptions HTMLTable IndexOptions SuppressColumnsorting </Directory>`

will be the equivalent of

`IndexOptions HTMLTable SuppressColumnsorting`

The addition of the incremental syntax (i.e., prefixing keywords with `+`或`-`).

Whenever a '+' or '-' prefixed keyword is encountered, it is applied to the current `IndexOptions` settings (which may have been inherited from an upper-level directory). However, whenever an unprefixed keyword is processed, it clears all inherited options and any incremental settings encountered so far. Consider the following example:

`IndexOptions +ScanHTMLTitles -IconsAreLinks FancyIndexing IndexOptions +SuppressSize`

The net effect is equivalent to `IndexOptions FancyIndexing +SuppressSize`, because the unprefixed `FancyIndexing` discarded the incremental keywords before it, but allowed them to start accumulating again afterward.

To unconditionally set the `IndexOptions` for a particular directory, clearing the inherited settings, specify keywords without any `+`或`-` prefixes.

说明 Sets the default ordering of the directory index 语法 `IndexOrderDefault Ascending|Descending Name|Date|Size|Description` 默认值 `IndexOrderDefault Ascending Name` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`IndexOrderDefault` directive is used in combination with the `FancyIndexing` index option. By default, fancyindexed directory listings are displayed in ascending order by filename; the `IndexOrderDefault` allows you to change this initial display order.

`IndexOrderDefault` takes two arguments. The first must be either `Ascending`或`Descending`, indicating the direction of the sort. The second argument must be one of the keywords `Name`, `Date`, `Size`, or `Description`, and identifies the primary key. The secondary key is always the ascending filename.

You can force a directory listing to only be displayed in a particular order by combining this directive with the `SuppressColumnSorting` index option; this will prevent the client from requesting the directory listing in a different order.

说明 Adds a CSS stylesheet to the directory index 语法 `IndexStyleSheet url-path` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`IndexStyleSheet` directive sets the name of the file that will be used as the CSS for the index listing.

示例

`IndexStyleSheet "/css/style.css"`

说明 Name of the file that will be inserted at the end of the index listing 语法 `ReadmeName filename` 作用域 server config, virtual host, directory, .htaccess 覆盖项 Indexes 状态基本(B) 模块 mod_autoindex
`ReadmeName` directive sets the name of the file that will be appended to the end of the index listing. `Filename` is the name of the file to include, and is taken to be relative to the location being indexed. If `Filename` begins with a slash, it will be taken to be relative to the `DocumentRoot`.

示例

`ReadmeName FOOTER.html`

Example 2

`ReadmeName /include/FOOTER.html`

See also `HeaderName`, where this behavior is described in greater detail.

Apache2.2 中文手册

Apache模块 mod_autoindex

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