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Align names used in utility db functions in Oracle and PostgreSQL

Over the years, the names used in the function for PostgreSQL and

Oracle drifted away, which is a problem when using call-by-name

convention for stored procedures. Furthermore, recent Oracle versions

do not allow attributes named "table" (for table_name). So the longer

version is now used uniformily. Fortunately, nsf allow abbreviation

for named parameters (like Tcl does), such one can use both

"-table_name" and "-table".

Bumped version number to 5.10.1d7.

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file upgrade-5.10.1d6-5.10.1d7.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.1d6-5.10.1d7.sql
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Fixes for Oracle 19c for membership and composition triggers

Warning: Trigger created with compilation errors.

Errors for TRIGGER MEMBERSHIP_RELS_IN_TR:

LINE/COL ERROR

-------- -----------------------------------------------------------------

14/3 PL/SQL: SQL Statement ignored

16/3 PL/SQL: ORA-00947: not enough values

32/3 PL/SQL: Statement ignored

32/6 PLS-00201: identifier 'V_COMPOSABLE_P' must be declared

Trigger created.

No errors.

Warning: Trigger created with compilation errors.

Errors for TRIGGER COMPOSITION_RELS_IN_TR:

LINE/COL ERROR

-------- -----------------------------------------------------------------

72/21 PL/SQL: SQL Statement ignored

72/48 PL/SQL: ORA-00918: column ambiguously defined

83/7 PL/SQL: Statement ignored

83/47 PLS-00364: loop index variable 'MEMBERS' use is invalid

86/5 PL/SQL: SQL Statement ignored

91/6 PL/SQL: ORA-00918: column ambiguously defined

Trigger created.

No errors.

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improving Oracle upgrade scripts

Oracle has no "ALTER TABLE ADD COLUMN ...."

Oracle has no "ALTER TABLE ADD COLUMN if exists .."

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file upgrade-5.10.1d2-5.10.1d3.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.1d2-5.10.1d3.sql
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stick to the original names with the "-" since this is also the naming convention outside of OpenACS (e.g. "scram-sha-256")

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file upgrade-5.10.1d1-5.10.1d2.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.1d1-5.10.1d2.sql
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Complete reform introduced in https://cvs.openacs.org/changelog/OpenACS?cs=oacs-5-10%3Agustafn%3A20210928124647

- add datamodel change to the creation script

- refactor algorithm names in a way that the new procs will comply with acs-tcl.naming__proc_naming automated test

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file upgrade-5.10.0-5.10.1d1.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0-5.10.1d1.sql
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Stronger password hashes for OpenACS

This change introduces the possibility to use either the classical

OpenACS password hash algorithm "salted-sha1" or the SCRAM passord

function "scram-sha-256". The latter can be used by (a) using the

most recent version of NaviServer (from Sept 28, 2021 or newer) and

(b) by configuring the password hash preferences via Kernel package

parameter "PasswordHashAlgorithm". The package parameter can contain a

list of multiple hash algorithms in preference order. The most

preferred available algorithm is chosen.

By default, the "PasswordHashAlgorithm" is "salted-sha1", and the

behavior is as before. After upgrading to the new version of acs-tcl

and acs-kernel, the preference list can be configured. When a user

logs in and the preferred available algorithm is different from the

previously used algorithm, the upgrade is performed for the user

automatically.

The usage of SHA1 in OpenACS is easily target of security audits (see

[1]). The biggest danger is that if somebody gets full access to the

"users" table (e.g. when decommissioning a hard disk). In this case

the hashes can be attacked with dictionaries by using some crypto

hardware (when someone gets raw access to the DB, one has usually some

other big problems). However, by using the "scram-sha-256" hash

function this danger is substantially reduced. This function computes

a password hash using PBKDF2 (Password-Based Key Derivation Function

2). This function is used to reduce vulnerabilities of brute-force

attacks against password hashes. The hash function of SCRAM is PBKDF2

[RFC2898] with HMAC as the pseudorandom function (PRF) and with dkLen

== output length of HMAC == output length of the digest function. So,

it uses a better hash algorithm (sha-256 vs. sha1) and applies this a

high number of times (15K times for a password hash computation).

NaviServer supports as well the even better SCRYPT algorithm, but this

is only available when NaviServer is compiled with OpenSSL 3.0 or

newer. On the contrary, scram-sha-256 (actually PKCS5_PBKDF2_HMAC) is

available since OpenSSL 1.0.0 (2015).

All the improved hash functions require NaviServer with its tight

integration to the crypto functions of OpenSSL.

[1] https://openacs.org/forums/message-view?message_id=5522562

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file upgrade-5.10.0d32-5.10.0d33.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d32-5.10.0d33.sql
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As we now enforce emails to be lowercase, also sanitize existing data

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Added constraint site_nodes_parent_id_ck to table "site_nodes" to avoid certain simple loops on parent_ids

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file upgrade-5.10.0d31-5.10.0d32.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d31-5.10.0d32.sql
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added oracle upgrade scripts for new check constraints

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file upgrade-5.10.0d30-5.10.0d31.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d30-5.10.0d31.sql
Added index on foreign key column to reduce sequential reads on delete

operations, since the optimizer brain fart ((c)Don Baccus) that existed

17 years ago in pg 7.2 seems to be gone

(https://openacs.org/forums/message-view?message_id=142769)

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file upgrade-5.10.0d27-5.10.0d28.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d27-5.10.0d28.sql
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Attribute discrepancy fix for object_types in OpenACS.

Some attributes are not created for new instances since 2006, but an upgrade

script deleting the already existing ones was never done.

Original datatype change:

https://fisheye.openacs.org/changelog/OpenACS?cs=MAIN%3Avictorg%3A20060727200933

https://github.com/openacs/openacs-core/commit/7e30fa270483dcbc866ffbf6f5cf4f30447987cb

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file upgrade-5.10.0d25-5.10.0d26.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d25-5.10.0d26.sql
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Add oracle upgrade logic for previous attribute datatype discrepancy package upgrades, and fix typo in postgres upgrade script

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file upgrade-5.10.0d24-5.10.0d25.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d24-5.10.0d25.sql
improve spelling

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improve spelling

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Move away portraits created as children of the -100 object that might be still around after acs-kernel/sql/postgresql/upgrade/upgrade-5.10.0d13-5.10.0d14.sql

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file upgrade-5.10.0d17-5.10.0d18.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d17-5.10.0d18.sql
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Reparent portraits coming from the old good days, which were saved with -100 as parent_id (since at least 6 years portraits are saved as children of the user object)

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file upgrade-5.10.0d13-5.10.0d14.sql was initially added on branch oacs-5-10.

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    ./upgrade-5.10.0d13-5.10.0d14.sql
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revert premature commit affecting all sites

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Add new column 'public_avatar_p' to the 'user_preferences' table, in order to allow the user to decide wheter to make the avatar (profile picture) public to other users or not, with a conservative default, false. Add also a simple API to get/set that value and bump acs-kernel version number.

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