acl plugin: avoid "'struct stat' declared inside parameter list" warning

acl-plugin: Whitespace fixes

acl-plugin: Make iterators more conforming The *_next functions return true/false, deinit will report errors and end result.

global: unsigned int:1 -> bool:1 perl -i -pe 's/unsigned int ([^,:;]+):1;/bool $1:1;/' **/*.[ch]

acl plugin: Added an alternative global ACL file that can contain mailbox patterns. Instead of pointing the global ACL path to a directory use a file instead. The file format is "<mailbox pattern> <normal ACL line>". Most importantly this can be used to specify default ACLs for namespaces. The mailbox pattern uses "*" and "?" wildcards currently. I'm not sure if I should still change them to IMAP "*" and "%" wildcards. That would make the behavior more complex ("%" depends on hierarchy separator), slightly slower and quota code is already also using the */? wildcards..

acl: Preserve dovecot-acl file's mtime when dsyncing.

acl: Added ACL checks for attributes. Added ACL <-> mailbox attribute mapping. The ACL checks will be useful once IMAP METADATA extension is finished. The mapping is used by dsync to sync ACLs via generic attribute syncing.

acl: Added acl_backend_nonowner_lookups_rebuild()

acl: Added acl_backend_nonowner_lookups_rebuild()

acl: Fixed the logic of merging multiple ACLs.

Initial commit for making mail_storage:mailbox_list to be from 1:1 to n:n. This will allow namespaces to share the same storage and a single namespace to have multiple storages (multiple mailbox formats). Neither works currently, and this commit probably breaks some things. --HG-- branch : HEAD

imap-acl: GETACL: Convert "owner" to the actual username whenever possible. --HG-- branch : HEAD

ACLs: Initial support for "post" right. --HG-- branch : HEAD

Added IMAP ACL commands with ability to modify ACLs. Based on patch by Bernhard Herzog and Sascha Wilde. --HG-- branch : HEAD

ACL: Crashfix to previous change. Also fixes "-id" to work correctly with missing "id". --HG-- branch : HEAD

Global ACLs now override all local ACLs. Also did some some internal in anticipation of ACL file update code. --HG-- branch : HEAD

acl: Fixed handling 'k' right. Although box/child creation was prevented, box/child/child wasn't. --HG-- branch : HEAD

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

Create dovecot-acl-list file that lists all mailboxes where non-owner has lookup right. Use the file when listing mailboxes in shared/public namespace. --HG-- branch : HEAD

cleanup --HG-- branch : HEAD

acl_object_list_deinit() now takes **iter parameter. --HG-- branch : HEAD

acl_backend is now tied to mailbox_list instead of mail_storage. --HG-- branch : HEAD

Added initial support for ACLs. Currently supports reading the ACLs from files. Since no proper support for shared folders exist yet, this is mostly intended to be used only for preventing users from fully accessing the mailboxes they'd otherwise have full access to. It anyway does support "master user" having different ACLs to mailboxes. --HG-- branch : HEAD