Restore g_gmt_offset for backward compatibility
This commit is contained in:
Trent Schafer
parent
de4443fd8c
commit
a6b5515e4d
@ -11,41 +11,44 @@ as
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Who Date Description
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------ ---------- -------------------------------------
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MBR 09.01.2011 Created
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*/
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g_aws_id varchar2(20) := 'my_aws_id'; -- AWS access key ID
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g_aws_key varchar2(40) := 'my_aws_key'; -- AWS secret key
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g_gmt_offset number := NULL; -- your timezone GMT adjustment
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function get_auth_string (p_string in varchar2) return varchar2
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as
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l_returnvalue varchar2(32000);
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l_encrypted_raw raw (2000); -- stores encrypted binary text
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l_decrypted_raw raw (2000); -- stores decrypted binary text
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l_key_bytes_raw raw (64); -- stores 256-bit encryption key
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l_encrypted_raw raw (2000); -- stores encrypted binary text
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l_decrypted_raw raw (2000); -- stores decrypted binary text
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l_key_bytes_raw raw (64); -- stores 256-bit encryption key
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begin
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/*
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Purpose: get authentication string
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Purpose: get authentication string
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Remarks: see http://docs.amazonwebservices.com/AmazonS3/latest/dev/RESTAuthentication.html#ConstructingTheAuthenticationHeader
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Who Date Description
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------ ---------- -------------------------------------
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MBR 09.01.2011 Created
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*/
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l_key_bytes_raw := utl_i18n.string_to_raw (g_aws_key, 'AL32UTF8');
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l_decrypted_raw := utl_i18n.string_to_raw (p_string, 'AL32UTF8');
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l_key_bytes_raw := utl_i18n.string_to_raw (g_aws_key, 'AL32UTF8');
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l_decrypted_raw := utl_i18n.string_to_raw (p_string, 'AL32UTF8');
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l_encrypted_raw := dbms_crypto.mac (src => l_decrypted_raw, typ => dbms_crypto.hmac_sh1, key => l_key_bytes_raw);
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l_returnvalue := utl_i18n.raw_to_char (utl_encode.base64_encode(l_encrypted_raw), 'AL32UTF8');
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l_returnvalue := utl_i18n.raw_to_char (utl_encode.base64_encode(l_encrypted_raw), 'AL32UTF8');
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l_returnvalue := 'AWS ' || g_aws_id || ':' || l_returnvalue;
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return l_returnvalue;
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end get_auth_string;
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@ -53,22 +56,22 @@ end get_auth_string;
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function get_signature (p_string in varchar2) return varchar2
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as
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begin
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/*
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Purpose: get signature part of authentication string
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Remarks:
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 09.01.2011 Created
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*/
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return substr(get_auth_string(p_string),26);
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return substr(get_auth_string(p_string),26);
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end get_signature;
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@ -81,12 +84,12 @@ begin
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Purpose: get AWS access key ID
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Remarks:
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 09.01.2011 Created
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*/
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return g_aws_id;
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@ -105,17 +108,21 @@ begin
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Purpose: get AWS access key ID
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Remarks:
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 09.01.2011 Created
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*/
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l_date_as_time := cast(p_date as timestamp);
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l_time_utc := sys_extract_utc(l_date_as_time);
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l_returnvalue := to_char(l_time_utc, 'Dy, DD Mon YYYY HH24:MI:SS', 'NLS_DATE_LANGUAGE = AMERICAN') || ' GMT';
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if g_gmt_offset is null then
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l_date_as_time := cast(p_date as timestamp);
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l_time_utc := sys_extract_utc(l_date_as_time);
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l_returnvalue := to_char(l_time_utc, 'Dy, DD Mon YYYY HH24:MI:SS', 'NLS_DATE_LANGUAGE = AMERICAN') || ' GMT';
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else
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l_returnvalue := to_char(p_date + g_gmt_offset/24, 'Dy, DD Mon YYYY HH24:MI:SS', 'NLS_DATE_LANGUAGE = AMERICAN') || ' GMT';
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end if;
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return l_returnvalue;
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@ -131,12 +138,12 @@ begin
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Purpose: get epoch (number of seconds since January 1, 1970)
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Remarks:
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 09.01.2011 Created
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*/
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l_returnvalue := trunc((p_date - to_date('01-01-1970','MM-DD-YYYY')) * 24 * 60 * 60);
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@ -154,19 +161,19 @@ begin
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Purpose: set AWS access key id
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Remarks:
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 18.01.2011 Created
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*/
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g_aws_id := p_aws_id;
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end set_aws_id;
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procedure set_aws_key (p_aws_key in varchar2)
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as
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@ -176,20 +183,43 @@ begin
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Purpose: set AWS secret key
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Remarks:
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 18.01.2011 Created
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*/
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g_aws_key := p_aws_key;
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end set_aws_key;
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procedure set_gmt_offset (p_gmt_offset in number)
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as
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begin
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/*
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Purpose: set GMT offset
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 03.03.2011 Created
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*/
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g_gmt_offset := p_gmt_offset;
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end set_gmt_offset;
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procedure init (p_aws_id in varchar2,
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p_aws_key in varchar2)
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p_aws_key in varchar2,
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p_gmt_offset in number := NULL)
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as
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begin
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@ -197,19 +227,19 @@ begin
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Purpose: initialize package for use
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Remarks:
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Remarks:
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Who Date Description
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------ ---------- -------------------------------------
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MBR 03.03.2011 Created
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*/
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g_aws_id := p_aws_id;
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g_aws_key := p_aws_key;
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g_gmt_offset := p_gmt_offset;
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end init;
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end amazon_aws_auth_pkg;
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/
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@ -7,15 +7,15 @@ as
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Remarks: inspired by the whitepaper "Building an Amazon S3 Client with Application Express 4.0" by Jason Straub
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see http://jastraub.blogspot.com/2011/01/building-amazon-s3-client-with.html
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dependencies: owner of this package needs execute on dbms_crypto
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dependencies: owner of this package needs execute on dbms_crypto
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Who Date Description
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------ ---------- -------------------------------------
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MBR 09.01.2011 Created
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*/
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-- get "Authorization" (actually authentication) header string
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function get_auth_string (p_string in varchar2) return varchar2;
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@ -24,23 +24,26 @@ as
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-- get AWS access key ID
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function get_aws_id return varchar2;
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-- get date string
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function get_date_string (p_date in date := sysdate) return varchar2;
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-- get epoch (number of seconds since January 1, 1970)
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function get_epoch (p_date in date) return number;
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-- set AWS access key id
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procedure set_aws_id (p_aws_id in varchar2);
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-- set AWS secret key
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procedure set_aws_key (p_aws_key in varchar2);
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-- set GMT offset
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procedure set_gmt_offset (p_gmt_offset in number);
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-- initialize package for use
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procedure init (p_aws_id in varchar2,
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p_aws_key in varchar2);
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p_aws_key in varchar2,
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p_gmt_offset in number := NULL);
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end amazon_aws_auth_pkg;
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/
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