liquid_feedback_frontend
annotate env/ldap/get_hosts.lua @ 1715:5ada43fc3f9b
Nicer wording
| author | bsw |
|---|---|
| date | Mon Sep 27 12:41:07 2021 +0200 (2021-09-27) |
| parents | 58f48a8a202a |
| children |
| rev | line source |
|---|---|
| bsw@1071 | 1 -- generate a ready-to-use list of the configures LDAP servers |
| bsw@1071 | 2 -- -------------------------------------------------------------------------- |
| bsw@1071 | 3 -- result is in order of preference, including a round robin style random |
| bsw@1071 | 4 -- selection of the preference of hosts with the same preference |
| bsw@1071 | 5 -- |
| bsw@1071 | 6 -- returns: |
| bsw@1071 | 7 -- hostlist: flattened list of LDAP servers in order of preference |
| bsw@1071 | 8 |
| bsw@1071 | 9 function ldap.get_hosts() |
| bsw@1071 | 10 |
| bsw@1071 | 11 math.randomseed(os.time()) |
| bsw@1071 | 12 |
| bsw@1071 | 13 local hostlist = {} |
| bsw@1071 | 14 |
| bsw@1071 | 15 -- iterate through all entries on base level |
| bsw@1071 | 16 for i, host in ipairs (config.ldap.hosts) do |
| bsw@1071 | 17 |
| bsw@1071 | 18 -- a single host entry |
| bsw@1071 | 19 if host.uri then |
| bsw@1071 | 20 hostlist[#hostlist+1] = host |
| bsw@1071 | 21 |
| bsw@1071 | 22 -- or a list of host entries |
| bsw@1071 | 23 else |
| bsw@1071 | 24 local subhostlist = {} |
| bsw@1071 | 25 |
| bsw@1071 | 26 -- sort list of host entries by random |
| bsw@1071 | 27 for j, subhost in ipairs(host) do |
| bsw@1071 | 28 subhost.priority = math.random() |
| bsw@1071 | 29 subhostlist[#subhostlist+1] = subhost |
| bsw@1071 | 30 end |
| bsw@1071 | 31 table.sort(subhostlist, function (a,b) |
| bsw@1071 | 32 return a.priority < b.priority |
| bsw@1071 | 33 end) |
| bsw@1071 | 34 |
| bsw@1071 | 35 -- and add them to the main list |
| bsw@1071 | 36 for i, subhost in ipairs(subhostlist) do |
| bsw@1071 | 37 hostlist[#hostlist+1] = subhost |
| bsw@1071 | 38 end |
| bsw@1071 | 39 |
| bsw@1071 | 40 end |
| bsw@1071 | 41 |
| bsw@1071 | 42 end |
| bsw@1071 | 43 |
| bsw@1071 | 44 return hostlist |
| bsw@1071 | 45 |
| bsw@1071 | 46 end |