Input

The Input directives allow you to select filters that will process incoming request data read by the Service stage. For more information, see Input.

The following Input-class filter is described in detail in this section:

• sed-request

In addition, the following common SAFs are valid for the Input directive:

• insert-filter

• match-browser

• remove-filter

• set-variable

Every Input directive has the following optional parameters.

Table 7–71 Input Directive's Optional Parameters

Optional Parameters	Description
type	(Optional) Specifies a wildcard pattern of MIME types for which this function will be executed.
method	(Optional) Specifies a wildcard pattern of HTTP methods for which this function will be executed. Common HTTP methods are GET, HEAD, and POST.
query	(Optional) Specifies a wildcard pattern of query strings for which this function will be executed.

sed-request

The sed-request filter applies the sed edit commands to an incoming request entity body, for example, an uploaded file or submitted form.

Parameters

The following table shows the sed-request parameters:

Table 7–72 sed-request Parameters

Parameter	Description
sed	Specifies a sed command script. When multiple sed parameters are provided, the sed edit commands are evaluated in the order they appear.

Example

The following obj.conf code instructs sed-request to encode any (<) and (>) characters posted in an HTML form:

Input fn="insert-filter"
      method="POST"
      filter="sed-request"
      sed="s/</\\&lt;/g"
      sed="s/%3c/\\&lt;/g"
      sed="s/%3C/\\&lt;/g"
      sed="s/>/\\&gt;/g"
      sed="s/%3e/\\&gt;/g"
      sed="s/%3E/\\&gt;/g"

Because POST bodies are usually URL-encoded, it is important to check for URL-encoded forms when editing POST bodies. %3C is the URL-encoded form of (<) and %3E is the URI-encoded form of (>).

See Also

• insert-filter

• sed-response