Fixed bug when connecting to an AC-enabled service (#476).

Author: anthony-tuininga

doc/src/release_notes.rst

@@ -35,6 +35,8 @@ Thin Mode Changes
 #)  Fixed bug when an error is reported by the server in the middle of a
     response to a client request
     (`issue 472 <https://github.com/oracle/python-oracledb/issues/472>`__).
+#)  Fixed bug when connecting to an AC-enabled service
+    (`issue 476 <https://github.com/oracle/python-oracledb/issues/476>`__).
 
 Thick Mode Changes
 ++++++++++++++++++

src/oracledb/impl/thin/capabilities.pyx

@@ -132,6 +132,8 @@ cdef class Capabilities:
         self.compile_caps[TNS_CCAP_TTC2] = TNS_CCAP_ZLNP
         self.compile_caps[TNS_CCAP_OCI2] = TNS_CCAP_DRCP
         self.compile_caps[TNS_CCAP_CLIENT_FN] = TNS_CCAP_CLIENT_FN_MAX
+        self.compile_caps[TNS_CCAP_SESS_SIGNATURE_VERSION] = \
+                TNS_CCAP_FIELD_VERSION_12_2
         self.compile_caps[TNS_CCAP_TTC4] = TNS_CCAP_INBAND_NOTIFICATION | \
                 TNS_CCAP_EXPLICIT_BOUNDARY
         self.compile_caps[TNS_CCAP_TTC5] = TNS_CCAP_VECTOR_SUPPORT | \

src/oracledb/impl/thin/constants.pxi

@@ -261,6 +261,7 @@ cdef enum:
     TNS_SERVER_PIGGYBACK_LTXID = 7
     TNS_SERVER_PIGGYBACK_AC_REPLAY_CONTEXT = 8
     TNS_SERVER_PIGGYBACK_EXT_SYNC = 9
+    TNS_SERVER_PIGGYBACK_SESS_SIGNATURE = 10
 
 # session return constants
 cdef enum:
@@ -416,6 +417,7 @@ cdef enum:
     TNS_CCAP_OCI2 = 31
     TNS_CCAP_CLIENT_FN = 34
     TNS_CCAP_TTC3 = 37
+    TNS_CCAP_SESS_SIGNATURE_VERSION = 39
     TNS_CCAP_TTC4 = 40
     TNS_CCAP_LOB2 = 42
     TNS_CCAP_TTC5 = 44

src/oracledb/impl/thin/messages/base.pyx

@@ -387,6 +387,12 @@ cdef class Message:
             self.conn_impl._drcp_establish_session = False
             buf.read_ub4(&self.conn_impl._session_id)
             buf.read_ub2(&self.conn_impl._serial_num)
+        elif opcode == TNS_SERVER_PIGGYBACK_SESS_SIGNATURE:
+            buf.skip_ub2()                  # number of dtys
+            buf.skip_ub1()                  # length of dty
+            buf.skip_ub8()                  # signature flags
+            buf.skip_ub8()                  # client signature
+            buf.skip_ub8()                  # server signature
         else:
             errors._raise_err(errors.ERR_UNKNOWN_SERVER_PIGGYBACK,
                               opcode=opcode)

src/oracledb/impl/thin/messages/data_types.pyx

@@ -326,6 +326,7 @@ cdef enum:
     TNS_DATA_TYPE_UD21 = 639
     TNS_DATA_TYPE_TNP = 640
     TNS_DATA_TYPE_OAC = 646
+    TNS_DATA_TYPE_SESSSIGN = 647
     TNS_DATA_TYPE_OER = 652
     TNS_DATA_TYPE_PLEND = 660
     TNS_DATA_TYPE_PLBGN = 661
@@ -340,7 +341,7 @@ cdef enum:
     TNS_TYPE_REP_ORACLE = 10
 
 
-cdef DataType[319] DATA_TYPES = [
+cdef DataType[320] DATA_TYPES = [
     [ORA_TYPE_NUM_VARCHAR, ORA_TYPE_NUM_VARCHAR, TNS_TYPE_REP_UNIVERSAL],
     [ORA_TYPE_NUM_NUMBER, ORA_TYPE_NUM_NUMBER, TNS_TYPE_REP_ORACLE],
     [ORA_TYPE_NUM_LONG, ORA_TYPE_NUM_LONG, TNS_TYPE_REP_UNIVERSAL],
@@ -661,6 +662,7 @@ cdef DataType[319] DATA_TYPES = [
     [TNS_DATA_TYPE_TNP, TNS_DATA_TYPE_TNP, TNS_TYPE_REP_UNIVERSAL],
     [TNS_DATA_TYPE_OER, TNS_DATA_TYPE_OER, TNS_TYPE_REP_UNIVERSAL],
     [TNS_DATA_TYPE_OAC, TNS_DATA_TYPE_OAC, TNS_TYPE_REP_UNIVERSAL],
+    [TNS_DATA_TYPE_SESSSIGN, TNS_DATA_TYPE_SESSSIGN, TNS_TYPE_REP_UNIVERSAL],
     [ORA_TYPE_NUM_VECTOR, ORA_TYPE_NUM_VECTOR, TNS_TYPE_REP_UNIVERSAL],
     [TNS_DATA_TYPE_PLEND, TNS_DATA_TYPE_PLEND, TNS_TYPE_REP_UNIVERSAL],
     [TNS_DATA_TYPE_PLBGN, TNS_DATA_TYPE_PLBGN, TNS_TYPE_REP_UNIVERSAL],