Document response bodies and MAKE-REDIRECT-RESPONSE.

doc/latex/httpd.tex

@@ -232,6 +232,13 @@ constructing responses lives in the \ex{httpd-responses} structure.
   represents the body of the response; more on that below.
 \end{desc}
 
+\defun{make-redirect-response}{location}{response}
+\begin{desc}
+  This is a helper procedure for constructing HTTP redirections.  The
+  server will serve the new file indicated by \var{location}.
+  \var{Location} must be URI-encoded and begin with a slash.
+\end{desc}
+
 \defun{make-error-response}{status-code request [message] extras \ldots}{response}
 \begin{desc}
   This is a helper procedure for constructing error responses.
@@ -295,6 +302,33 @@ constructing responses lives in the \ex{httpd-responses} structure.
   \ex{status-code-message} extracts its associated default message.
 \end{desc}
 
+\section{Response Bodies}
+\label{httpd:response-bodies}
+
+A \textit{response body} represents the body of an HTTP response.
+There are several types of response bodies, depending on the
+requirements on content generation.
+
+\defun{make-writer-body}{proc}{body}
+\begin{desc}
+  This constructs a response body from a \textit{writer}---a procedure
+  that prints the page contents to a port.  The \var{proc} argument
+  must be a procedure accepting an output port (to which \var{proc}
+  prints the body) and the options value passed to the \ex{httpd}
+  invocation.
+\end{desc}
+
+\defun{make-reader-writer-body}{proc}{body}
+\begin{desc}
+  This constructs a response body from a \textit{reader/writer}---a
+  procedure that prints the page contents to a port, possibly after
+  reading input from the socket of the HTTP connection.  The
+  \var{proc} argument must be a procedure accepting three arguments:
+  an input port (associated with the HTTP connection socket), an
+  output port (to which \var{proc} prints the body), and the options
+  value passed to the \ex{httpd} invocation.
+\end{desc}
+
 \section{Request Handlers}
 \label{httpd:request-handlers}
 
@@ -500,6 +534,9 @@ Dito, but also serve directory indices for directories without
  
 \section{CGI Server}
 
+The procedure(s) described here live in the \ex{httpd-cgi-handlers}
+structure.
+
 \defun{cgi-handler}{bin-dir [cgi-bin-path]}{request-handler}
 \begin{desc}
   Returns a request handler for CGI scripts located in