/usr/share/ada/adainclude/aws/soap-message-xml.adb is in libaws3.3.2-dev 3.3.2-2.
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-- Ada Web Server --
-- --
-- Copyright (C) 2000-2015, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This library is distributed in the hope that it will be --
-- useful, but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are --
-- granted additional permissions described in the GCC Runtime Library --
-- Exception, version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
------------------------------------------------------------------------------
pragma Ada_2012;
with Ada.Characters.Handling;
with Ada.Exceptions;
with Ada.Strings.Fixed;
with AWS.Client.XML.Input_Sources;
with DOM.Core.Nodes;
with Input_Sources.Strings;
with Sax.Readers;
with Unicode.CES.Utf8;
with SOAP.Message.Reader;
with SOAP.Message.Response.Error;
with SOAP.Name_Space;
with SOAP.Types.Untyped;
with SOAP.Utils;
with SOAP.XML;
package body SOAP.Message.XML is
use Ada;
use DOM.Core.Nodes;
use SOAP.Message.Reader;
NL : constant String := ASCII.CR & ASCII.LF;
Max_Object_Size : constant := 2_048;
-- This is the maximum number of items in a record or an array supported
-- by this implementation.
XML_Header : constant String := "<?xml version='1.0' encoding='UTF-8'?>";
-- Alternate URLs
URL_xsd : constant String := "http://www.w3.org/1999/XMLSchema";
URL_xsi : constant String := "http://www.w3.org/1999/XMLSchema-instance";
type Type_State is
(Void, T_Undefined, T_Any_Type,
T_Int, T_Float, T_Double, T_Long, T_Short, T_Byte,
T_Unsigned_Long, T_Unsigned_Int, T_Unsigned_Short, T_Unsigned_Byte,
T_String, T_Boolean, T_Time_Instant, T_Date_Time,
T_Base64, T_Base64_Bin);
type Namespaces is record
xsd : SOAP.Name_Space.Object := SOAP.Name_Space.XSD;
xsi : SOAP.Name_Space.Object := SOAP.Name_Space.XSI;
enc : SOAP.Name_Space.Object := SOAP.Name_Space.SOAPENC;
env : SOAP.Name_Space.Object := SOAP.Name_Space.SOAPENV;
User : NS_Set;
Index : Natural := 0;
end record;
type State is record
Name_Space : SOAP.Name_Space.Object;
Wrapper_Name : Unbounded_String;
Parameters : SOAP.Parameters.List;
A_State : Type_State := Void;
NS : Namespaces;
Strict : Boolean := True;
Style : WSDL.Schema.Binding_Style := WSDL.Schema.RPC;
Schema : WSDL.Schema.Definition;
Enclosing : Unbounded_String; -- enclosing element type (record)
end record;
function To_Type
(Type_Name : String;
NS : Namespaces;
Schema : WSDL.Schema.Definition)
return Type_State;
-- Given the Type_Name and the namespaces return the proper type
procedure Load_XML
(Input : in out Input_Sources.Input_Source'Class;
S : out State);
-- Load XML document, set State and ensure the document is freed when an
-- exception occurs. The Input source is closed before returning.
procedure Parse_Namespaces
(N : DOM.Core.Node;
NS : in out Namespaces);
-- Read namespaces from node and set NS accordingly
function Get_Namespace_Value
(NS : Namespaces;
Name : String) return String;
-- Returns the user's namspace value for the given namespace name
function Get_Namespace_Object
(NS : Namespaces; Name : String) return SOAP.Name_Space.Object;
-- Returns the user namespace for the given name
procedure Parse_Document
(N : DOM.Core.Node;
S : in out State);
procedure Parse_Envelope
(N : DOM.Core.Node;
S : in out State);
procedure Parse_Header
(N : DOM.Core.Node;
S : in out State);
procedure Parse_Body
(N : DOM.Core.Node;
S : in out State);
procedure Parse_Wrapper
(N : DOM.Core.Node;
S : in out State);
-- Parse routines for specific types
function Parse_Any_Type
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Long
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Int
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Short
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Byte
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Float
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Double
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_String
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Boolean
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Base64
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Unsigned_Long
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Unsigned_Int
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Unsigned_Short
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Unsigned_Byte
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Untyped
(Name : String;
N : DOM.Core.Node) return Types.Object'Class;
-- Parse a node whose type is unknown. This is used to workaround the fact
-- that AWS parser is not aware of the WSDL schema.
function Parse_Time_Instant
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
function Parse_Param
(N : DOM.Core.Node;
S : in out State) return Types.Object'Class;
function Parse_Array
(Name : String;
N : DOM.Core.Node;
S : in out State) return Types.Object'Class;
function Parse_Record
(Name : String;
N : DOM.Core.Node;
S : in out State) return Types.Object'Class;
function Parse_Enumeration
(Name : String;
N : DOM.Core.Node) return Types.Object'Class;
procedure Error (Node : DOM.Core.Node; Message : String) with No_Return;
-- Raises SOAP_Error with the Message as exception message
type Parse_Type is access
function (Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class;
type Type_Handler is record
Name : access constant String;
Handler : Parse_Type;
Encoded : Boolean; -- True if based on soap-enc namespaces
end record;
Handlers : constant array (Type_State) of Type_Handler :=
(Void =>
(null, null, False),
T_Undefined =>
(Types.XML_Undefined'Access, null, False),
T_Any_Type =>
(Types.XML_Any_Type'Access, Parse_Any_Type'Access, False),
T_Long =>
(Types.XML_Long'Access, Parse_Long'Access, False),
T_Int =>
(Types.XML_Int'Access, Parse_Int'Access, False),
T_Short =>
(Types.XML_Short'Access, Parse_Short'Access, False),
T_Byte =>
(Types.XML_Byte'Access, Parse_Byte'Access, False),
T_Float =>
(Types.XML_Float'Access, Parse_Float'Access, False),
T_Double =>
(Types.XML_Double'Access, Parse_Double'Access, False),
T_String =>
(Types.XML_String'Access, Parse_String'Access, False),
T_Boolean =>
(Types.XML_Boolean'Access, Parse_Boolean'Access, False),
T_Base64 =>
(Types.XML_Base64'Access, Parse_Base64'Access, True),
T_Base64_Bin =>
(Types.XML_Base64_Binary'Access, Parse_Base64'Access, True),
T_Unsigned_Long =>
(Types.XML_Unsigned_Long'Access,
Parse_Unsigned_Long'Access, False),
T_Unsigned_Int =>
(Types.XML_Unsigned_Int'Access,
Parse_Unsigned_Int'Access, False),
T_Unsigned_Short =>
(Types.XML_Unsigned_Short'Access,
Parse_Unsigned_Short'Access, False),
T_Unsigned_Byte =>
(Types.XML_Unsigned_Byte'Access,
Parse_Unsigned_Byte'Access, False),
T_Date_Time =>
(Types.XML_Date_Time'Access,
Parse_Time_Instant'Access, False),
T_Time_Instant =>
(Types.XML_Time_Instant'Access,
Parse_Time_Instant'Access, False));
-----------
-- Error --
-----------
procedure Error (Node : DOM.Core.Node; Message : String) is
Name : constant String := Local_Name (Node);
begin
raise SOAP_Error with Name & " - " & Message;
end Error;
--------------------------
-- Get_Namespace_Object --
--------------------------
function Get_Namespace_Object
(NS : Namespaces; Name : String) return SOAP.Name_Space.Object is
begin
for K in 1 .. NS.Index loop
if SOAP.Name_Space.Name (NS.User (K)) = Name then
return NS.User (K);
end if;
end loop;
return SOAP.Name_Space.No_Name_Space;
end Get_Namespace_Object;
-------------------------
-- Get_Namespace_Value --
-------------------------
function Get_Namespace_Value
(NS : Namespaces;
Name : String) return String is
begin
for K in 1 .. NS.Index loop
if SOAP.Name_Space.Name (NS.User (K)) = Name then
return SOAP.Name_Space.Value (NS.User (K));
end if;
end loop;
return "";
end Get_Namespace_Value;
-----------
-- Image --
-----------
function Image
(O : Object'Class;
Schema : WSDL.Schema.Definition := WSDL.Schema.Empty) return String is
begin
return To_String (XML.Image (O, Schema));
end Image;
-----------
-- Image --
-----------
function Image
(O : Object'Class;
Schema : WSDL.Schema.Definition :=
WSDL.Schema.Empty) return Unbounded_String
is
Message_Body : Unbounded_String;
function Get_NS (URL, Default : String) return String;
-- Returns the name-space as defined in the schema for the given URL or
-- default if not found.
------------
-- Get_NS --
------------
function Get_NS (URL, Default : String) return String is
begin
if Schema.Contains (URL) then
return "xmlns:" & Schema (URL) & "=""" & URL & '"';
else
return Default;
end if;
end Get_NS;
-- Name spaces
NS_Enc : constant SOAP.Name_Space.Object :=
SOAP.Name_Space.Create
("encodingStyle",
SOAP.Name_Space.SOAPENC_URL,
Prefix => SOAP.Name_Space.Name (O.env));
SOAPENV : constant String :=
SOAP.Name_Space.Name (O.env);
Start_Env : constant String := "<" & SOAPENV & ":Envelope";
End_Env : constant String := "</" & SOAPENV & ":Envelope>";
Start_Body : constant String := "<" & SOAPENV & ":Body";
End_Body : constant String := "</" & SOAPENV & ":Body>";
begin
-- Header
Append (Message_Body, XML_Header & NL);
-- Add environment
Append
(Message_Body,
Start_Env
& ' ' & SOAP.Name_Space.Image (NS_Enc)
& ' '
& Get_NS (SOAP.Name_Space.SOAPENC_URL, SOAP.Name_Space.Image (O.enc))
& ' '
& Get_NS (SOAP.Name_Space.SOAPENV_URL, SOAP.Name_Space.Image (O.env))
& ' '
& Get_NS (SOAP.Name_Space.XSD_URL, SOAP.Name_Space.Image (O.xsd))
& ' '
& Get_NS (SOAP.Name_Space.XSI_URL, SOAP.Name_Space.Image (O.xsi))
& '>' & NL);
-- Body
Append (Message_Body, Start_Body);
-- Wrapper
Append (Message_Body, Message.XML_Image (O, Schema));
-- End of Body and Envelope
Append (Message_Body, End_Body & NL);
Append (Message_Body, End_Env & NL);
return Message_Body;
end Image;
------------------
-- Load_Payload --
------------------
function Load_Payload
(XML : aliased String;
Envelope : Boolean := True;
Schema : WSDL.Schema.Definition := WSDL.Schema.Empty)
return Message.Payload.Object
is
use Input_Sources.Strings;
Source : String_Input;
S : State;
begin
Open (XML'Unchecked_Access,
Unicode.CES.Utf8.Utf8_Encoding,
Source);
S.Strict := Envelope;
S.Schema := Schema;
S.Style := WSDL.Schema.Get_Binding_Style (Schema);
Load_XML (Source, S);
Close (Source);
return Message.Payload.Build
(To_String (S.Wrapper_Name), S.Parameters, S.Name_Space);
end Load_Payload;
function Load_Payload
(XML : Unbounded_String;
Envelope : Boolean := True;
Schema : WSDL.Schema.Definition := WSDL.Schema.Empty)
return Message.Payload.Object
is
XML_Str : String_Access := new String (1 .. Length (XML));
begin
for I in 1 .. Length (XML) loop
XML_Str (I) := Element (XML, I);
end loop;
return O : constant Message.Payload.Object :=
Load_Payload (XML_Str.all, Envelope, Schema)
do
Free (XML_Str);
end return;
exception
when others =>
Free (XML_Str);
raise;
end Load_Payload;
-------------------
-- Load_Response --
-------------------
function Load_Response
(Connection : AWS.Client.HTTP_Connection;
Envelope : Boolean := True;
Schema : WSDL.Schema.Definition := WSDL.Schema.Empty)
return Message.Response.Object'Class
is
use AWS.Client.XML.Input_Sources;
Source : HTTP_Input;
S : State;
begin
Create (Connection, Source);
S.Strict := Envelope;
S.Schema := Schema;
S.Style := WSDL.Schema.Get_Binding_Style (Schema);
Load_XML (Source, S);
Close (Source);
if SOAP.Parameters.Exist (S.Parameters, "faultcode") then
return Message.Response.Error.Build
(Faultcode =>
Message.Response.Error.Faultcode
(String'(SOAP.Parameters.Get (S.Parameters, "faultcode"))),
Faultstring => SOAP.Parameters.Get (S.Parameters, "faultstring"));
else
return Message.Response.Object'
(Message.Object'(S.Name_Space, S.Wrapper_Name, S.Parameters,
S.NS.xsd, S.NS.xsi, S.NS.enc, S.NS.env, S.NS.User, S.NS.Index)
with null record);
end if;
exception
when E : others =>
return Message.Response.Error.Build
(Faultcode => Message.Response.Error.Client,
Faultstring => Exceptions.Exception_Message (E));
end Load_Response;
function Load_Response
(XML : aliased String;
Envelope : Boolean := True;
Schema : WSDL.Schema.Definition := WSDL.Schema.Empty)
return Message.Response.Object'Class
is
use Input_Sources.Strings;
Source : String_Input;
S : State;
begin
Open (XML'Unchecked_Access,
Unicode.CES.Utf8.Utf8_Encoding,
Source);
S.Strict := Envelope;
S.Schema := Schema;
S.Style := WSDL.Schema.Get_Binding_Style (Schema);
Load_XML (Source, S);
Close (Source);
if SOAP.Parameters.Exist (S.Parameters, "faultcode") then
return Message.Response.Error.Build
(Faultcode =>
Message.Response.Error.Faultcode
(String'(SOAP.Parameters.Get (S.Parameters, "faultcode"))),
Faultstring => SOAP.Parameters.Get (S.Parameters, "faultstring"));
else
return Message.Response.Object'
(Message.Object'(S.Name_Space, S.Wrapper_Name, S.Parameters,
S.NS.xsd, S.NS.xsi, S.NS.enc, S.NS.env, S.NS.User, S.NS.Index)
with null record);
end if;
exception
when E : others =>
return Message.Response.Error.Build
(Faultcode => Message.Response.Error.Client,
Faultstring => Exceptions.Exception_Message (E));
end Load_Response;
function Load_Response
(XML : Unbounded_String;
Envelope : Boolean := True;
Schema : WSDL.Schema.Definition := WSDL.Schema.Empty)
return Message.Response.Object'Class
is
S : String_Access := new String (1 .. Length (XML));
begin
-- Copy XML content to local S string
for I in 1 .. Length (XML) loop
S (I) := Element (XML, I);
end loop;
declare
Result : constant Message.Response.Object'Class :=
Load_Response (S.all, Envelope, Schema);
begin
Free (S);
return Result;
end;
end Load_Response;
--------------
-- Load_XML --
--------------
procedure Load_XML
(Input : in out Input_Sources.Input_Source'Class;
S : out State)
is
Reader : Tree_Reader;
Doc : DOM.Core.Document;
begin
-- If True, xmlns:* attributes will be reported in Start_Element
Set_Feature (Reader, Sax.Readers.Namespace_Prefixes_Feature, True);
Set_Feature (Reader, Sax.Readers.Validation_Feature, False);
Parse (Reader, Input);
Doc := Get_Tree (Reader);
Parse_Document (Doc, S);
Free (Doc);
exception
when others =>
Doc := Get_Tree (Reader);
Free (Doc);
raise;
end Load_XML;
--------------------
-- Parse_Any_Type --
--------------------
function Parse_Any_Type
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class is
begin
-- ??? We have no type information, in this implementation we map the
-- value into a xsd:string.
return Parse_String (Name, Type_Name, N);
end Parse_Any_Type;
-----------------
-- Parse_Array --
-----------------
function Parse_Array
(Name : String;
N : DOM.Core.Node;
S : in out State) return Types.Object'Class
is
use SOAP.Types;
use type DOM.Core.Node;
function Item_Type (Name : String) return String with Inline;
-- Returns the array's item type, remove [] if present
---------------
-- Item_Type --
---------------
function Item_Type (Name : String) return String is
N : constant Positive := Strings.Fixed.Index (Name, "[");
begin
return Name (Name'First .. N - 1);
end Item_Type;
LS : constant State := S;
OS : Types.Object_Set (1 .. Max_Object_Size);
K : Natural := 0;
Field : DOM.Core.Node;
Atts : constant DOM.Core.Named_Node_Map := Attributes (N);
begin
Parse_Namespaces (N, S.NS);
declare
A_Name : constant String :=
SOAP.Name_Space.Name (S.NS.enc) & ":arrayType";
-- Attribute name
Type_Name : constant String :=
Item_Type (Node_Value (Get_Named_Item (Atts, A_Name)));
A_Type : constant Type_State :=
To_Type (Type_Name, S.NS, S.Schema);
begin
Field := SOAP.XML.First_Child (N);
-- Set state for the enclosing elements
S.Enclosing := To_Unbounded_String (Name);
S.A_State := A_Type;
while Field /= null loop
K := K + 1;
OS (K) := +Parse_Param (Field, S);
Field := Next_Sibling (Field);
end loop;
-- Restore state
S.A_State := LS.A_State;
S.Enclosing := LS.Enclosing;
return Types.A (OS (1 .. K), Name, Type_Name);
end;
end Parse_Array;
------------------
-- Parse_Base64 --
------------------
function Parse_Base64
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
use type DOM.Core.Node;
Value : DOM.Core.Node;
begin
Normalize (N);
Value := First_Child (N);
if Value = null then
-- No node found, this is an empty Base64 content
return Types.B64 ("", Name, Type_Name);
else
return Types.B64 (Node_Value (Value), Name, Type_Name);
end if;
end Parse_Base64;
----------------
-- Parse_Body --
----------------
procedure Parse_Body (N : DOM.Core.Node; S : in out State) is
use type WSDL.Schema.Binding_Style;
begin
Parse_Namespaces (N, S.NS);
if S.Style = WSDL.Schema.RPC then
Parse_Wrapper (SOAP.XML.First_Child (N), S);
else
-- When on Document style the actual procedure to call is given
-- by the signature of the procedure. That is the set of procedure
-- parameter name give the procedure to call.
--
-- So two calls cannot have the same signatures, that is why such
-- WSDL are using a parameter based on the actual call to be done.
--
-- We should compute the signature first as we need to know the
-- actual procedure name to be able to get the encoding style
-- (literal/encoded). We also need to know the procedure name as
-- it is used as a prefix to the parameters to get the type in the
-- schema.
Compute_Signature : declare
use type DOM.Core.Node;
P : DOM.Core.Node := SOAP.XML.First_Child (N);
Signature : Unbounded_String;
begin
while P /= null loop
if Signature /= Null_Unbounded_String then
Append (Signature, ":");
end if;
Append (Signature, Utils.No_NS (Node_Name (P)));
P := SOAP.XML.Next_Sibling (P);
end loop;
-- Get SOAP call for this specific signature
S.Wrapper_Name :=
To_Unbounded_String
(WSDL.Schema.Get_Call_For_Signature
(S.Schema, To_String (Signature)));
S.Enclosing := S.Wrapper_Name;
end Compute_Signature;
declare
use SOAP.Parameters;
use type DOM.Core.Node;
P : DOM.Core.Node := SOAP.XML.First_Child (N);
begin
while P /= null loop
S.Parameters := S.Parameters & Parse_Param (P, S);
P := SOAP.XML.Next_Sibling (P);
end loop;
end;
end if;
end Parse_Body;
-------------------
-- Parse_Boolean --
-------------------
function Parse_Boolean
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
if Node_Value (Value) = "1"
or else Node_Value (Value) = "true"
or else Node_Value (Value) = "TRUE"
then
return Types.B (True, Name);
else
-- ??? we should check for wrong boolean value
return Types.B (False, Name, Type_Name);
end if;
end Parse_Boolean;
----------------
-- Parse_Byte --
----------------
function Parse_Byte
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.B (Types.Byte'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Byte;
--------------------
-- Parse_Document --
--------------------
procedure Parse_Document (N : DOM.Core.Node; S : in out State) is
NL : constant DOM.Core.Node_List := Child_Nodes (N);
begin
if Length (NL) = 1 then
Parse_Envelope (SOAP.XML.First_Child (N), S);
else
Error (N, "Document must have a single node, found "
& Natural'Image (Length (NL)));
end if;
end Parse_Document;
------------------
-- Parse_Double --
------------------
function Parse_Double
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.D (Long_Float'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Double;
-----------------------
-- Parse_Enumeration --
-----------------------
function Parse_Enumeration
(Name : String;
N : DOM.Core.Node) return Types.Object'Class is
begin
return Types.E
(Node_Value (First_Child (N)),
Utils.No_NS (SOAP.XML.Get_Attr_Value (N, "type")),
Name);
end Parse_Enumeration;
--------------------
-- Parse_Envelope --
--------------------
procedure Parse_Envelope (N : DOM.Core.Node; S : in out State) is
NL : constant DOM.Core.Node_List := Child_Nodes (N);
begin
Parse_Namespaces (N, S.NS);
if Local_Name (N) /= "Envelope" then
if S.Strict then
Error
(N,
"Root tag local name have to be 'Envelope', but '"
& Local_Name (N) & "' found.");
else
Parse_Wrapper (N, S);
end if;
elsif Length (NL) = 1 then
-- This must be the body
Parse_Body (SOAP.XML.First_Child (N), S);
elsif Length (NL) = 2 then
-- The first child must the header tag
Parse_Header (SOAP.XML.First_Child (N), S);
-- The second child must be the body
Parse_Body (SOAP.XML.Next_Sibling (First_Child (N)), S);
else
Error (N, "Envelope must have at most two nodes, found "
& Natural'Image (Length (NL)));
end if;
end Parse_Envelope;
-----------------
-- Parse_Float --
-----------------
function Parse_Float
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.F (Float'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Float;
------------------
-- Parse_Header --
------------------
procedure Parse_Header (N : DOM.Core.Node; S : in out State) is
pragma Unreferenced (S);
Name : constant String := Local_Name (N);
begin
if Ada.Characters.Handling.To_Lower (Name) /= "header" then
Error (N, "Header node expected, found " & Name);
end if;
end Parse_Header;
---------------
-- Parse_Int --
---------------
function Parse_Int
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.I (Integer'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Int;
----------------
-- Parse_Long --
----------------
function Parse_Long
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.L (Types.Long'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Long;
----------------------
-- Parse_Namespaces --
----------------------
procedure Parse_Namespaces
(N : DOM.Core.Node;
NS : in out Namespaces)
is
Atts : constant DOM.Core.Named_Node_Map := Attributes (N);
begin
for K in 0 .. Length (Atts) - 1 loop
declare
N : constant DOM.Core.Node := Item (Atts, K);
Name : constant String := Node_Name (N);
Value : constant String := Node_Value (N);
begin
if Utils.NS (Name) = "xmlns" then
if Value = URL_xsd
or else Value = SOAP.Name_Space.XSD_URL
then
NS.xsd := SOAP.Name_Space.Create (Utils.No_NS (Name), Value);
elsif Value = URL_xsi
or else Value = SOAP.Name_Space.XSI_URL
then
NS.xsi := SOAP.Name_Space.Create (Utils.No_NS (Name), Value);
elsif Value = SOAP.Name_Space.SOAPENC_URL then
NS.enc := SOAP.Name_Space.Create (Utils.No_NS (Name), Value);
elsif Value = SOAP.Name_Space.SOAPENV_URL then
NS.env := SOAP.Name_Space.Create (Utils.No_NS (Name), Value);
elsif NS.Index < NS.User'Last then
NS.Index := NS.Index + 1;
NS.User (NS.Index) :=
SOAP.Name_Space.Create (Utils.No_NS (Name), Value);
end if;
end if;
end;
end loop;
end Parse_Namespaces;
-----------------
-- Parse_Param --
-----------------
function Parse_Param
(N : DOM.Core.Node;
S : in out State) return Types.Object'Class
is
use type DOM.Core.Node;
use type DOM.Core.Node_Types;
use type SOAP.Types.Encoding_Style;
function Is_Array return Boolean;
-- Returns True if N is an array node
function With_NS
(O : Types.Object'Class;
NS : SOAP.Name_Space.Object) return Types.Object'Class;
-- Retruns O with the associated name-space
Name : constant String := Local_Name (N);
Key : constant String :=
(if S.Enclosing /= Null_Unbounded_String
then To_String (S.Enclosing) & "." & Name
else Name);
Encoding : constant SOAP.Types.Encoding_Style :=
WSDL.Schema.Get_Encoding_Style
(S.Schema, To_String (S.Wrapper_Name));
Ref : constant DOM.Core.Node := SOAP.XML.Get_Ref (N);
Atts : constant DOM.Core.Named_Node_Map := Attributes (Ref);
--------------
-- Is_Array --
--------------
function Is_Array return Boolean is
XSI_Type : constant DOM.Core.Node :=
Get_Named_Item
(Atts, SOAP.Name_Space.Name (S.NS.xsi) & ":type");
SOAP_Enc : constant DOM.Core.Node :=
Get_Named_Item
(Atts,
SOAP.Name_Space.Name (S.NS.enc) & ":arrayType");
begin
return
-- Either we have xsi:type="soapenc:Array"
(XSI_Type /= null
and then Utils.No_NS (Node_Value (XSI_Type)) = "Array")
or else
-- or soapenc:arrayType="..."
SOAP_Enc /= null;
end Is_Array;
-------------
-- With_NS --
-------------
function With_NS
(O : Types.Object'Class;
NS : SOAP.Name_Space.Object) return Types.Object'Class
is
use type SOAP.Name_Space.Object;
L : Types.Object'Class := O;
begin
if NS /= SOAP.Name_Space.No_Name_Space then
Types.Set_Name_Space (L, NS);
end if;
return L;
end With_NS;
S_Type : constant DOM.Core.Node := Get_Named_Item (Atts, "type");
XSI_Type : DOM.Core.Node;
xsd : Unbounded_String;
NS : SOAP.Name_Space.Object := SOAP.Name_Space.No_Name_Space;
begin
Parse_Namespaces (Ref, S.NS);
if Encoding = WSDL.Schema.Encoded then
XSI_Type :=
Get_Named_Item (Atts, SOAP.Name_Space.Name (S.NS.xsi) & ":type");
if XSI_Type /= null then
xsd := To_Unbounded_String (Node_Value (XSI_Type));
end if;
else
if S.Schema.Contains (Key) then
xsd := To_Unbounded_String (S.Schema (Key));
end if;
end if;
NS := Get_Namespace_Object (S.NS, Utils.NS (To_String (xsd)));
if To_String (S.Wrapper_Name) = "Fault" then
return Parse_String (Name, Types.XML_String, Ref);
elsif Is_Array then
return Parse_Array (Name, Ref, S);
else
if XSI_Type = null
and then xsd = Null_Unbounded_String
and then S.A_State in Void .. T_Undefined
then
-- No xsi:type attribute found
if Get_Named_Item
(Atts, SOAP.Name_Space.Name (S.NS.xsi) & ":null") /= null
then
return Types.N (Name);
elsif S_Type /= null
and then First_Child (Ref).Node_Type = DOM.Core.Text_Node
then
-- Not xsi:type but a type information, the child being a text
-- node, this is an enumeration.
return Parse_Enumeration (Name, Ref);
elsif First_Child (Ref) = null then
-- We have an emtpy node, return an empty string in this case
-- otherwise we will create an empty record in the else section
-- below.
return Types.Untyped.S ("", Name);
elsif First_Child (Ref).Node_Type = DOM.Core.Text_Node then
-- No xsi:type and no type information. Children are some kind
-- of text data, so this is a data node with no type
-- information. Note that this code is to workaround an
-- interoperability problem found with gSOAP and Microsoft SOAP
-- implementation based on WSDL were the type information is
-- not provided into the payload but only on the WSDL file. As
-- AWS/SOAP parser is not WSDL compliant at this point we
-- record such type as undefined. Later the value will be
-- converted to to right type when read by one of the
-- Types.Get routine. Note that this code is only there to
-- parse data received from a SOAP server. AWS/SOAP always send
-- type information into the payload.
return Parse_Untyped (Name, Ref);
else
-- This is a type defined in a schema, either a SOAP record
-- or an enumeration, enumerations will be checked into
-- Parse record.
-- This is a SOAP record, we have no attribute and no
-- type defined. We have a single tag "<name>" which can
-- only be the start or a record.
return Parse_Record (Name, Ref, S);
end if;
else
declare
S_xsd : constant String := To_String (xsd);
S_Type : constant Type_State :=
To_Type (S_xsd, S.NS, S.Schema);
begin
if S_Type = T_Undefined then
-- Not a known basic type, let's try to parse a
-- record object. This implemtation does not
-- support schema so there is no way to check
-- for the real type here.
return Parse_Record (Name, Ref, S);
else
return With_NS
(Handlers (S_Type).Handler (Name, S_xsd, Ref), NS);
end if;
end;
end if;
end if;
end Parse_Param;
------------------
-- Parse_Record --
------------------
function Parse_Record
(Name : String;
N : DOM.Core.Node;
S : in out State) return Types.Object'Class
is
use SOAP.Types;
use type DOM.Core.Node;
use type DOM.Core.Node_Types;
use type WSDL.Schema.Binding_Style;
Key : constant String := To_String (S.Enclosing) & '.' & Name;
Field : DOM.Core.Node := SOAP.XML.Get_Ref (N);
xsd : constant String :=
SOAP.XML.Get_Attr_Value
(Field, SOAP.Name_Space.Name (S.NS.xsi) & ":type");
-- The record fields temporary store
OS : Types.Object_Set (1 .. Max_Object_Size);
K : Natural := 0;
T_Name : Unbounded_String; -- record's type name
LS : constant State := S;
begin
if (S.Style = WSDL.Schema.Document or else xsd = "")
and then S.Schema.Contains (Key)
then
-- This should be done only for document style binding, but let's
-- do it also for the RPC binding. It can help parsing non fully
-- conformant messages.
T_Name := To_Unbounded_String (S.Schema (Key));
else
T_Name := To_Unbounded_String (xsd);
end if;
if Name /= Local_Name (N)
and then First_Child (Field).Node_Type = DOM.Core.Text_Node
then
-- This is not a record after all, it is an enumeration with an href
-- A record can't have a text child node.
return Types.E
(Node_Value (First_Child (Field)),
Utils.No_NS (To_String (T_Name)), Name);
else
Field := SOAP.XML.First_Child (Field);
-- Set state for the enclosing elements
S.Enclosing := To_Unbounded_String (Utils.No_NS (To_String (T_Name)));
while Field /= null loop
K := K + 1;
OS (K) := +Parse_Param (Field, S);
Field := Next_Sibling (Field);
end loop;
-- Restore state
S.Enclosing := LS.Enclosing;
declare
NS : constant SOAP.Name_Space.Object :=
Get_Namespace_Object (S.NS, Utils.NS (To_String (T_Name)));
begin
return Types.R
(OS (1 .. K), Name,
Utils.No_NS (To_String (T_Name)), NS);
end;
end if;
end Parse_Record;
-----------------
-- Parse_Short --
-----------------
function Parse_Short
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.S (Types.Short'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Short;
------------------
-- Parse_String --
------------------
function Parse_String
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
use type DOM.Core.Node;
use type DOM.Core.Node_Types;
L : constant DOM.Core.Node_List := Child_Nodes (N);
S : Unbounded_String;
P : DOM.Core.Node;
begin
for I in 0 .. Length (L) - 1 loop
P := Item (L, I);
if P.Node_Type = DOM.Core.Text_Node then
Append (S, Node_Value (P));
end if;
end loop;
return Types.S (S, Name, Type_Name);
end Parse_String;
------------------------
-- Parse_Time_Instant --
------------------------
function Parse_Time_Instant
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
TI : constant String := Node_Value (Value);
begin
return Utils.Time_Instant (TI, Name, Type_Name);
end Parse_Time_Instant;
-------------------------
-- Parse_Unsigned_Byte --
-------------------------
function Parse_Unsigned_Byte
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.UB
(Types.Unsigned_Byte'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Unsigned_Byte;
------------------------
-- Parse_Unsigned_Int --
------------------------
function Parse_Unsigned_Int
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.UI
(Types.Unsigned_Int'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Unsigned_Int;
-------------------------
-- Parse_Unsigned_Long --
-------------------------
function Parse_Unsigned_Long
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.UL
(Types.Unsigned_Long'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Unsigned_Long;
--------------------------
-- Parse_Unsigned_Short --
--------------------------
function Parse_Unsigned_Short
(Name : String;
Type_Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
Value : constant DOM.Core.Node := First_Child (N);
begin
return Types.US
(Types.Unsigned_Short'Value (Node_Value (Value)), Name, Type_Name);
end Parse_Unsigned_Short;
-------------------
-- Parse_Untyped --
-------------------
function Parse_Untyped
(Name : String;
N : DOM.Core.Node) return Types.Object'Class
is
use type DOM.Core.Node;
use type DOM.Core.Node_Types;
L : constant DOM.Core.Node_List := Child_Nodes (N);
S : Unbounded_String;
P : DOM.Core.Node;
begin
for I in 0 .. Length (L) - 1 loop
P := Item (L, I);
if P.Node_Type = DOM.Core.Text_Node then
Append (S, Node_Value (P));
end if;
end loop;
return Types.Untyped.S (S, Name);
end Parse_Untyped;
-------------------
-- Parse_Wrapper --
-------------------
procedure Parse_Wrapper (N : DOM.Core.Node; S : in out State) is
use type DOM.Core.Node_Types;
use type SOAP.Parameters.List;
NL : constant DOM.Core.Node_List := Child_Nodes (N);
Prefix : constant String := DOM.Core.Nodes.Prefix (N);
Name : constant String := Local_Name (N);
Atts : constant DOM.Core.Named_Node_Map := Attributes (N);
begin
Parse_Namespaces (N, S.NS);
if Prefix /= "" then
-- The wrapper has a prefix
if Length (Atts) /= 0 then
declare
use type DOM.Core.Node;
xmlns : constant DOM.Core.Node :=
Get_Named_Item (Atts, "xmlns:" & Prefix);
begin
if xmlns /= null then
S.Name_Space :=
SOAP.Name_Space.Create (Prefix, Node_Value (xmlns));
end if;
end;
else
-- There is no attribute for this node, yet the wrapper is using
-- a name space.
S.Name_Space :=
SOAP.Name_Space.Create
(Prefix, Get_Namespace_Value (S.NS, Prefix));
end if;
end if;
S.Wrapper_Name := To_Unbounded_String (Name);
S.Enclosing := S.Wrapper_Name;
for K in 0 .. Length (NL) - 1 loop
if Item (NL, K).Node_Type /= DOM.Core.Text_Node then
S.Parameters := S.Parameters & Parse_Param (Item (NL, K), S);
end if;
end loop;
end Parse_Wrapper;
-------------
-- To_Type --
-------------
function To_Type
(Type_Name : String;
NS : Namespaces;
Schema : WSDL.Schema.Definition) return Type_State
is
N_xsd : constant String := SOAP.Name_Space.Name (NS.xsd);
N_enc : constant String := SOAP.Name_Space.Name (NS.enc);
S_xsd : constant String :=
(if Schema.Contains (SOAP.Name_Space.XSD_URL)
then Schema (SOAP.Name_Space.XSD_URL)
else "");
function Is_A
(T1_Name, T2_Name : String;
NS : String) return Boolean
is (T1_Name = Utils.With_NS (NS, T2_Name)) with Inline;
-- Returns True if T1_Name is equal to T2_Name based on namespace
T_Name : constant String :=
(if Schema.Contains (Type_Name)
then Schema (Type_Name)
else Type_Name);
begin
for K in Handlers'Range loop
if Handlers (K).Name /= null
and then
((Handlers (K).Encoded
and then Is_A (T_Name, Handlers (K).Name.all, N_enc))
-- check name-space in the schema
or else Is_A (T_Name, Handlers (K).Name.all, S_xsd)
-- then check name-space in the parsed context
or else Is_A (T_Name, Handlers (K).Name.all, N_xsd))
then
return K;
end if;
end loop;
return T_Undefined;
end To_Type;
end SOAP.Message.XML;
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