ab

Anatol Belski

Contents

PHP RFC: Removal of dead or not yet PHP7 ported SAPIs and extensions

Introduction

Currently PHP contains many SAPIs to the servers either completely unavailable or unsupported for a long time. The same can be said about several extensions which are for long deprecated or their dependency libraries are unsupported. Here's a short list:

Dead SAPIs:

  • aolserver
  • apache
  • apache_hooks
  • caudium
  • continuity
  • isapi
  • milter
  • phttpd
  • pi3web
  • roxen
  • thttpd
  • tux
  • webjames
  • apache2filter - not really dead, but currently broken
  • nsapi

Extensions with unmaintained dependencies

  • imap
  • mcrypt

Extensions not yet ported to PHP7

  • interbase
  • mssql
  • oci8
  • pdo_dblib
  • pdo_oci
  • sybase_ct

Deprecated extensions handled by https://wiki.php.net/rfc/remove_deprecated_functionality_in_php7 (not handled by this RFC)

  • mysql
  • ereg

This leads to the situation where the repository contains a lot of unmaintained code. The code which doesn't become any updates for years or relies on long unmaintained libraries. Besides that code being not maintained, it is also kind of security risk.


Research

sapi/aolserver

sapi/apache

  • Server last release: 2010
  • Server debian supported: no

Apache 1.x branch not developed anymore since 2010. Also it supports no security updates anymore.

sapi/apache_hooks

Same as sapi/apache.

sapi/apache2filter

  • Server debian supported: yes

This Apache 2.x compatible module seems to have been supported in at least PHP5. In master, it will need to be ported.

sapi/caudium

  • Sevrer home: http://caudium.net/
  • Server last release: 2012
  • Server debian supported: not completely
  • SAPI status: unsupported

The official documentation of Caudium states that PHP can only run as CGI or FCGI http://www.caudium.net/space/documentation/PHP%20Setup . Running PHP as a module is not supported anymore.

sapi/continuity

No mortal remains of the corresponding server could be found on the internets.

sapi/isapi

The ISAPI support was announced to have been dropped already in the 5.3 migration guide. http://us2.php.net/manual/en/migration53.windows.php .

sapi/milter

Milter is not a web server but an API enabling to hook into different MTAs for mail filtering. PHP scripts running under this SAPI are not dedicated to web development, but would be invoked by the corresponding MTA. In this case also, the corresponding PHP program will need to implement whichever rules. An example of another binding to Milter, just to name one, is an interface to Amavis.

sapi/phttpd

  • Server last release: not sure, development seems to have ended around 2000
  • Server debian supported: no
  • SAPI status: development incomplete

Comment from the README: THIS IS BY NO MEANS COMPLETE NOR USABLE RIGHT NOW!

sapi/pi3web

sapi/roxen

The official documentation http://docs.roxen.com/roxen/5.0/system_developer_manual/languages/php.xml call the only supported mode to be CGI. The SAPI module is called experimental there.

sapi/thttpd

The latest thttpd version is 2.26, which builds fine. But when building PHP, there's an error message

“This version only supports thttpd-2.21b and premium thttpd”

But thttpd-2.21b doesn't build anymore, at least at some recent distro i've used. The premium thttpd seems to be a commercial product which isn't available to test with.

sapi/tux

sapi/webjames

sapi/nsapi

The developers of iPlanet @Oracle wrote back, that they're not intended to support this SAPI starting from PHP7 onwards.

However Uwe Schindler wrote back, that he will port and maintaing this SAPI for PHP7.

NOTE: This SAPI was removed from the voting options, because per the current info it's going to be supported for PHP7 in the future.

ext/imap

* Dependency home: http://www.washington.edu/imap/
* Dependency debian supported: yes
* Dependency last release: 2007

ext/mcrypt

ext/interbase

  • Dependency home: not available, firebird can be used
  • Dependency debian supported: yes
  • Dependency last release: 2014

Marius Adrian Popa wrote back about an intention to maintain this further in the core together with ext/pdo_firebird. Right now the ext/interbase is half ported to PHP7 (needs cleaning).

NOTE: This extension was removed from the voting options, because per the current info it's going to be supported for PHP7 in the future.

ext/pdo_oci and ext/oci8

  • Dependency home: oracle.com
  • Dependency debian supported: no
  • Dependency last release: 2014

Christopher Jones stated these extensions to be supported by Oracle. Oracle plans to maintains them further in the core.

NOTE: These extensions was removed from the voting options, because they per the current info are going to be supported for PHP7 in the future.

ext/mssql

  • Dependency home: microsoft.com
  • Dependency debian supported: no
  • Dependency last release: 2014

ext/pdo_dblib

  • Dependency home: sybase.com, microsoft.com
  • Dependency debian supported: no
  • Dependency last release: 2014

ext/sybase_ct

  • Dependency home: sybase.com
  • Dependency debian supported: no
  • Dependency last release: 2014

Proposal

The SAPIs listed above should be removed from the source tree. The extensions listed above should be removed from the source tree. Depending on the vote outcome and presence of the maintainers, they could be resurrected in PECL.

Backward Incompatible Changes

None.

Proposed PHP Version(s)

7

SAPIs Impacted

SAPI and extension list in the description.

Impact to Existing Extensions

Unsupported extensions list in the description.

php.ini Defaults

php.ini will have to be checked to remove the unavailable config options, if any.

Open Issues

None.

Future Scope

Should an SAPI or extension come back, the corresponding code is available in the git history.

Voting

The voting options are attached to the corresponding items. The voting starts on 2015-02-02 and ends on 2015-02-09 at 23:00 CET respectively. To be accepted/declined each vote requires 50%+1 acceptance.

Implementation

Implemented in PHP7, see PRE_NATIVE_TLS_MERGE and POST_NATIVE_TLS_MERGE tags.

Votes

An option needs 50%+1 votes to win

Remove sapi/aolserver from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
dmitry Yes
francois Yes
guilhermeblanco Yes
hywan Yes
irker Yes
jedibc Yes
jpauli Yes
kalle Yes
klaussilveira Yes
krakjoe Yes
lcobucci Yes
leigh Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
reeze Yes
remi Yes
santiagolizardo Yes
sebastian Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/apache from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
derick Yes
francois Yes
guilhermeblanco Yes
hywan Yes
irker Yes
jedibc Yes
jpauli Yes
kalle Yes
klaussilveira Yes
krakjoe Yes
lcobucci Yes
leigh Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
reeze Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/apache_hooks from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
derick Yes
guilhermeblanco Yes
hywan Yes
irker Yes
jedibc Yes
jpauli Yes
kalle Yes
klaussilveira Yes
krakjoe Yes
lcobucci Yes
leigh Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
reeze Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/apache2filter from the core (95.8% approved)
User Vote
ab Yes
andi Yes
auroraeosrose No
guilhermeblanco Yes
irker Yes
jedibc Yes
jpauli Yes
kalle Yes
klaussilveira Yes
krakjoe Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
zeev Yes
Remove sapi/caudium from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
derick Yes
dmitry Yes
guilhermeblanco Yes
hywan Yes
irker Yes
jedibc Yes
jpauli Yes
kalle Yes
klaussilveira Yes
krakjoe Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/continuity from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
derick Yes
dmitry Yes
guilhermeblanco Yes
hywan Yes
jedibc Yes
kalle Yes
klaussilveira Yes
krakjoe Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/isapi from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
derick Yes
dmitry Yes
guilhermeblanco Yes
hywan Yes
jedibc Yes
kalle Yes
klaussilveira Yes
krakjoe Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/milter from the core (52.6% approved)
User Vote
ab Yes
andi No
auroraeosrose No
derick No
guilhermeblanco No
hywan No
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny No
mariuz Yes
mbeccati No
pajoye Yes
pollita Yes
ramsey Yes
santiagolizardo Yes
sebastian Yes
treffynnon No
zeev No
Remove sapi/phttpd from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
dmitry Yes
guilhermeblanco Yes
hywan Yes
jedibc Yes
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/pi3web from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
dmitry Yes
guilhermeblanco Yes
jedibc Yes
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
Remove sapi/roxen from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
dmitry Yes
guilhermeblanco Yes
hywan Yes
jedibc Yes
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
santiagolizardo Yes
sebastian Yes
stas Yes
treffynnon Yes
yunosh Yes
Remove sapi/thttpd from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
derick Yes
dmitry Yes
guilhermeblanco Yes
irker Yes
jedibc Yes
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
santiagolizardo Yes
sebastian Yes
stas Yes
treffynnon Yes
yunosh Yes
zeev Yes
Remove sapi/tux from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
dmitry Yes
guilhermeblanco Yes
hywan Yes
jedibc Yes
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
Remove sapi/webjames from the core (100% approved)
User Vote
ab Yes
aharvey Yes
andi Yes
auroraeosrose Yes
dmitry Yes
guilhermeblanco Yes
hywan Yes
jedibc Yes
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi Yes
santiagolizardo Yes
sebastian Yes
stas Yes
thetaphi Yes
treffynnon Yes
yunosh Yes
Remove ext/imap from the core (42.4% approved)
User Vote
ab Yes
aharvey No
andi No
auroraeosrose No
bukka Yes
bwoebi Yes
derick No
dmitry No
fa Yes
francois No
guilhermeblanco No
hywan No
kalle No
klaussilveira No
krakjoe No
lcobucci No
lstrojny Yes
mariuz Yes
mbeccati Yes
nikic Yes
olemarkus Yes
pajoye Yes
pollita No
ramsey No
remi Yes
salathe No
santiagolizardo No
sebastian Yes
stas No
treffynnon No
yohgaki Yes
yunosh Yes
zeev No
Remove ext/mcrypt from the core (45.5% approved)
User Vote
ab Yes
aharvey No
andi No
auroraeosrose No
bukka Yes
derick No
dmitry No
fa Yes
francois No
guilhermeblanco Yes
hywan No
ircmaxell No
jedibc Yes
kalle Yes
klaussilveira No
krakjoe No
lcobucci No
lstrojny Yes
mariuz Yes
mattwil Yes
mbeccati Yes
nikic No
olemarkus Yes
pajoye Yes
ramsey No
rdlowrey No
remi Yes
santiagolizardo No
stas No
treffynnon No
yohgaki Yes
yunosh Yes
zeev No
Remove ext/mssql from the core (85% approved)
User Vote
ab Yes
aharvey Yes
auroraeosrose Yes
guilhermeblanco Yes
jedibc Yes
kalle No
klaussilveira Yes
krakjoe No
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
pajoye Yes
pollita Yes
ramsey Yes
rdlowrey Yes
remi No
santiagolizardo Yes
stas Yes
treffynnon Yes
Remove ext/pdo_dblib from the core (18.2% approved)
User Vote
ab Yes
aharvey No
andi No
auroraeosrose No
guilhermeblanco No
hywan No
jedibc No
kalle No
klaussilveira No
krakjoe No
lcobucci No
lstrojny Yes
mariuz No
mbeccati No
pajoye Yes
pollita No
ramsey No
remi No
santiagolizardo Yes
thetaphi No
treffynnon No
zeev No
Remove ext/sybase_ct from the core (94.4% approved)
User Vote
ab Yes
auroraeosrose Yes
guilhermeblanco Yes
jedibc Yes
kalle Yes
klaussilveira Yes
lcobucci Yes
lstrojny Yes
mariuz Yes
mbeccati Yes
mrook Yes
pajoye Yes
pollita Yes
ramsey Yes
santiagolizardo Yes
thetaphi No
treffynnon Yes
yohgaki Yes