Cannot reach web service with Oracle PL/SQL

Question

I would call a web service from PL/SQL Oracle 11g but the following script is not working:

declare
v_Endpoint varchar2(500) := '<my_endpoint>';
v_Http_Req Utl_Http.Req;
begin
Utl_Http.Set_Wallet('<my_wallet_path>','<my_wallet_password>');
Utl_Http.Set_Proxy('<proxy_url>:<proxy_password>@<proxy-url>:8080');
v_Http_Req := Utl_Http.Begin_Request(v_Endpoint, 'POST', 'HTTP/1.1');

exception
when others then
DBMS_OUTPUT.PUT_LINE('EXCEPTION: '||SQLERRM);
DBMS_OUTPUT.PUT_LINE('EXCEPTION: '||DBMS_UTILITY.FORMAT_ERROR_BACKTRACE);
DBMS_OUTPUT.PUT_LINE('EXCEPTION: '||UTL_HTTP.GET_DETAILED_SQLERRM);
end;

EXCEPTION: ORA-29273: richiesta HTTP non riuscita
ORA-06512: a "SYS.UTL_HTTP", line 1130
ORA-53203: violazione di sicurezza
EXCEPTION: ORA-06512: a "SYS.UTL_HTTP", line 1130
ORA-06512: a line 7

EXCEPTION: ORA-53203: violazione di sicurezza

Procedura PL/SQL completata correttamente.

The connection to the endpoint is possible with SOAPUI without problems. I can open the URL in a browser with the proxy <proxy_url>:8080/script_proxy.pac The wallet contains the certificate that has been downloaded from. I've inserted the URL test.salesforce.com in the ACL and granted access to the user that runs my script.

How can I figure out the issue?

Answer 1

You probably need to define an ACL to access external.network services. Check the output of:

SELECT * FROM DBA_NETWORK_ACLS;
SELECT * FROM DBA_NETWORK_ACL_PRIVILEGES;

And check the documentation to the CREATE_ACL Procedure :

DBMS_NETWORK_ACL_ADMIN.CREATE_ACL (
   acl             IN VARCHAR2,
   description     IN VARCHAR2,
   principal       IN VARCHAR2,
   is_grant        IN BOOLEAN,
   privilege       IN VARCHAR2,
   start_date      IN TIMESTAMP WITH TIMEZONE DEFAULT NULL,
   end_date        IN TIMESTAMP WITH TIMEZONE DEFAULT NULL );