quota: Add QUOTA_GET_RESULT_BACKGROUND_CALC enum value

quota: Add QUOTA_ALLOC_RESULT_BACKGROUND_CALC enum value

quota: Make quota_get_result errors <= QUOTA_GET_RESULT_INTERNAL_ERROR Reorder the enum to make a shortcut for distinguishing errors.

quota: Add error_r to quota_get_resource()

quota: Add error_r to quota_settings->test_alloc()

quota: quota_get_resource() - return enum to make the result more exact This is mainly to differentiate between "resource name unknown" and "unlimited quota". This also fixes quota_clone plugin to update quota even when quota is unlimited. It was supposed to have been skipped only when the resource names weren't known. The private quota.get_resource() API is unchanged. The backends were already returning 0 only when the resource name was unknown.

quota: Update comments in quota.h

quota: Remove unused quota_free()

common quota parameter parsing function implemented

quota: Add quota_max_mail_size setting

quota: Introduce quota_alloc_result return type

quota: Differentiate between forced and non-forced quota recalc The "count" backend doesn't need to recalc quota unless an explicit "doveadm quota recalc" command is called.

quota: Added quota_over_flag_lazy_check flag. By default the quota_over_flag is checked immediately at startup. With this option the check is done only at a time when the quota is anyway being read.

quota: Cleanup - split quota_over_flag to init & run parts In preparation for the next change.

quota: If overquota-flag in userdb is wrong, execute a configured script. The idea here is that a quota_warning script could set user's overquota-flag to e.g. LDAP where MTA could reject mails already at RCPT TO stage. The quota_warning scripts however have race conditions that are difficult (or impossible) to fix, so sometimes the overquota-flag could become wrong and might require manual intervention to fix it. This feature is supposed to solve the issue by comparing the overquota-flag's status to the actual current quota usage and execute a script to fix up the situation if needed. This script is of course racy as well, but there's always the next login that can fix the situation. Also it's pretty rare that user's quota is jumping just around the limit. The overquota-flag name in userdb must be "quota_over_flag". There are two settings to configure what to do: plugin { # If quota_over_flag=TRUE, the overquota-flag is enabled. Otherwise not. quota_over_flag_value = TRUE # Any non-empty value for quota_over_flag means user is over quota. # Wildcards can be used in a generic way, e.g. "*yes" or "*TRUE*" #quota_over_flag_value = * # Service script to execute if overquota-flag is wrong. Configured the # same as quota_warning scripts. The current quota_over_flag's value is # appended as the last parameter. quota_over_script = quota-warning mismatch %u }

quota: Added "hidden" option to hide the quota root from IMAP GETQUOTAROOT command.

quota: Avoid calling i_fatal() on initialization errors, plus some other fixes.

Fixed plugins to work with config rewrite. --HG-- branch : HEAD

IMAP quota should have returned "MESSAGE", not "MESSAGES" quota. --HG-- branch : HEAD

Added struct mail_user and fixed the code to support multiple users per process. --HG-- branch : HEAD

Changed .h ifdef/defines to use <NAME>_H format. --HG-- branch : HEAD

Added quota warning commands. Based lightly on a patch by Nicolas Boullis. --HG-- branch : HEAD

Use sync_notify() callback to count expunges. This makes the calculation much more reliable than the previous method. Also did some API cleanups. --HG-- branch : HEAD

Bytes and kilobytes were somewhat mixed up everywhere. Also fixes a compiling problem. --HG-- branch : HEAD

Changes to make trash plugin working again. --HG-- branch : HEAD

Added support for multiple quota roots, rules and storages. The configuration has changed, userdb now needs to return "quota_rule" settings instead. Much of the code changes were done by Tianyan Liu. --HG-- branch : HEAD

If size of the mail was known before saving started, we allocated the quota twice for it. --HG-- branch : HEAD

Quota API redesign. Still not perfect, but better than before. Quota backends no longer need to be told where the mails exist. fs backend doesn't work correctly with multiple partitions (if you've multiple namespaces). --HG-- branch : HEAD

mailbox_save_init() supports now returning failure. Quota plugin now checks if mail is too large in mailbox_save_init() hook. APPEND fails before giving "+ OK" reply if mailbox_save_init() failed. Also fixed some APPEND failure cases where the next command was eaten away. --HG-- branch : HEAD

Added "bool" type and changed all ints that were used as booleans to bool. --HG-- branch : HEAD

Added beginnings of plugin infrastructure. TODO: These could be optionally compiled into binaries with some configure options. Added quota plugin and a new trash plugin. Not very well tested. --HG-- branch : HEAD