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File 6803-inets-Add-callback-attributes-to-mod_esi.patch of Package erlang (Revision 6ff263ea95f98a067bf8d20b6686eae1)

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From 21b47a0fc8ad0d4aaca5923b7000179d4b635de8 Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Wed, 27 Sep 2023 16:18:15 +0200
Subject: [PATCH 3/5] inets: Add callback attributes to mod_esi

---
 lib/inets/doc/src/mod_esi.xml         |  4 ++--
 lib/inets/src/http_server/mod_esi.erl | 34 +++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/lib/inets/doc/src/mod_esi.xml b/lib/inets/doc/src/mod_esi.xml
index 5f992303e9..5a86530a04 100644
--- a/lib/inets/doc/src/mod_esi.xml
+++ b/lib/inets/doc/src/mod_esi.xml
@@ -61,7 +61,7 @@
 	<tag><c>{server_port, integer()}</c></tag>
 	<item><p>Servers port number.</p></item>
 	
-	<tag><c>{request_method, "GET | "PUT" | "DELETE" | "POST" | "PATCH"}</c></tag>
+	<tag><c>{request_method, "GET" | "PUT" | "DELETE" | "POST" | "PATCH"}</c></tag>
 	<item><p>HTTP request method.</p></item>
 		
 	<tag><c>{remote_adress, inet:ip_address()} </c></tag>
@@ -127,7 +127,7 @@
      to the server process by calling <c>mod_esi:deliver/2</c>.</fsummary>
      <type>
        <v>SessionID = term()</v>
-       <v>Env = env()</v>
+       <v>Env = [env()]</v>
        <v>Input = string() | chunked_data()</v>
        <v>chunked_data() = {first, Data::binary()} |
        {continue, Data::binary(), State::term()} |
diff --git a/lib/inets/src/http_server/mod_esi.erl b/lib/inets/src/http_server/mod_esi.erl
index 8e42311d00..cc8f23adbd 100644
--- a/lib/inets/src/http_server/mod_esi.erl
+++ b/lib/inets/src/http_server/mod_esi.erl
@@ -39,6 +39,40 @@
         [{status, {404, ModData#mod.request_uri, "Not found"}} |
          ModData#mod.data]).
 
+%%%=========================================================================
+%%%  Types
+%%%=========================================================================
+-type env() :: {server_software, string()} |
+               {server_name, string()} |
+               {gateway_interface, string()} |
+               {server_protocol, string()} |
+               {server_port, integer()} |
+               {request_method, string() } |
+               {remote_adress, inet:ip_address()}  |
+               {peer_cert, undefined | no_peercert | public_key:der_encoded()} |
+               {script_name, string()} |
+               {http_LowerCaseHTTPHeaderName, string()}.
+
+%%%=========================================================================
+%%%  Callbacks
+%%%=========================================================================
+-callback 'Function'(SessionID, Env, Input) -> {continue, State} | _
+                        when
+                            SessionID :: term(),
+                            Env :: [env()],
+                            Input :: string() | ChunkedData,
+                            ChunkedData ::
+                                {first, Data :: binary()} |
+                                {continue,
+                                 Data :: binary(),
+                                 State :: term()} |
+                                {last,
+                                 Data :: binary(),
+                                 State :: term()},
+                            State :: term().
+
+-optional_callbacks(['Function'/3]).
+
 %%%=========================================================================
 %%%  API 
 %%%=========================================================================
-- 
2.35.3

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