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CHOMPStation2/code/modules/client/client procs.dm

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////////////
//SECURITY//
////////////
#define TOPIC_SPAM_DELAY 2 //2 ticks is about 2/10ths of a second; it was 4 ticks, but that caused too many clicks to be lost due to lag
#define UPLOAD_LIMIT 10485760 //Restricts client uploads to the server to 10MB //Boosted this thing. What's the worst that can happen?
#define MIN_CLIENT_VERSION 0 //Just an ambiguously low version for now, I don't want to suddenly stop people playing.
//I would just like the code ready should it ever need to be used.
/*
When somebody clicks a link in game, this Topic is called first.
It does the stuff in this proc and then is redirected to the Topic() proc for the src=[0xWhatever]
(if specified in the link). ie locate(hsrc).Topic()
Such links can be spoofed.
Because of this certain things MUST be considered whenever adding a Topic() for something:
- Can it be fed harmful values which could cause runtimes?
- Is the Topic call an admin-only thing?
- If so, does it have checks to see if the person who called it (usr.client) is an admin?
- Are the processes being called by Topic() particularly laggy?
- If so, is there any protection against somebody spam-clicking a link?
If you have any questions about this stuff feel free to ask. ~Carn
*/
/client/Topic(href, href_list, hsrc)
if(!usr || usr != mob) //stops us calling Topic for somebody else's client. Also helps prevent usr=null
return
//Reduces spamming of links by dropping calls that happen during the delay period
if(next_allowed_topic_time > world.time)
return
next_allowed_topic_time = world.time + TOPIC_SPAM_DELAY
//search the href for script injection
if( findtext(href,"<script",1,0) )
world.log << "Attempted use of scripts within a topic call, by [src]"
message_admins("Attempted use of scripts within a topic call, by [src]")
//del(usr)
return
//Admin PM
if(href_list["priv_msg"])
var/client/C = locate(href_list["priv_msg"])
if(ismob(C)) //Old stuff can feed-in mobs instead of clients
var/mob/M = C
C = M.client
cmd_admin_pm(C,null)
return
if(href_list["irc_msg"])
if(!holder && received_irc_pm < world.time - 6000) //Worse they can do is spam IRC for 10 minutes
usr << "<span class='warning'>You are no longer able to use this, it's been more then 10 minutes since an admin on IRC has responded to you</span>"
return
if(mute_irc)
usr << "<span class='warning'You cannot use this as your client has been muted from sending messages to the admins on IRC</span>"
return
cmd_admin_irc_pm(href_list["irc_msg"])
return
//Logs all hrefs
if(config && config.log_hrefs && href_logfile)
href_logfile << "<small>[time2text(world.timeofday,"hh:mm")] [src] (usr:[usr])</small> || [hsrc ? "[hsrc] " : ""][href]<br>"
switch(href_list["_src_"])
if("holder") hsrc = holder
if("usr") hsrc = mob
if("prefs") return prefs.process_link(usr,href_list)
if("vars") return view_var_Topic(href,href_list,hsrc)
..() //redirect to hsrc.Topic()
/client/proc/handle_spam_prevention(var/message, var/mute_type)
if(config.automute_on && !holder && src.last_message == message)
src.last_message_count++
if(src.last_message_count >= SPAM_TRIGGER_AUTOMUTE)
src << "\red You have exceeded the spam filter limit for identical messages. An auto-mute was applied."
cmd_admin_mute(src.mob, mute_type, 1)
return 1
if(src.last_message_count >= SPAM_TRIGGER_WARNING)
src << "\red You are nearing the spam filter limit for identical messages."
return 0
else
last_message = message
src.last_message_count = 0
return 0
//This stops files larger than UPLOAD_LIMIT being sent from client to server via input(), client.Import() etc.
/client/AllowUpload(filename, filelength)
if(filelength > UPLOAD_LIMIT)
src << "<font color='red'>Error: AllowUpload(): File Upload too large. Upload Limit: [UPLOAD_LIMIT/1024]KiB.</font>"
return 0
/* //Don't need this at the moment. But it's here if it's needed later.
//Helps prevent multiple files being uploaded at once. Or right after eachother.
var/time_to_wait = fileaccess_timer - world.time
if(time_to_wait > 0)
src << "<font color='red'>Error: AllowUpload(): Spam prevention. Please wait [round(time_to_wait/10)] seconds.</font>"
return 0
fileaccess_timer = world.time + FTPDELAY */
return 1
///////////
//CONNECT//
///////////
/client/New(TopicData)
TopicData = null //Prevent calls to client.Topic from connect
if(!(connection in list("seeker", "web"))) //Invalid connection type.
return null
if(byond_version < MIN_CLIENT_VERSION) //Out of date client.
return null
if(!config.guests_allowed && IsGuestKey(key))
alert(src,"This server doesn't allow guest accounts to play. Please go to http://www.byond.com/ and register for a key.","Guest","OK")
del(src)
return
// Change the way they should download resources.
if(config.resource_urls)
src.preload_rsc = pick(config.resource_urls)
else src.preload_rsc = 1 // If config.resource_urls is not set, preload like normal.
src << "\red If the title screen is black, resources are still downloading. Please be patient until the title screen appears."
clients += src
directory[ckey] = src
//Admin Authorisation
holder = admin_datums[ckey]
if(holder)
admins += src
holder.owner = src
//preferences datum - also holds some persistant data for the client (because we may as well keep these datums to a minimum)
prefs = preferences_datums[ckey]
if(!prefs)
prefs = new /datum/preferences(src)
preferences_datums[ckey] = prefs
prefs.last_ip = address //these are gonna be used for banning
prefs.last_id = computer_id //these are gonna be used for banning
. = ..() //calls mob.Login()
if(custom_event_msg && custom_event_msg != "")
src << "<h1 class='alert'>Custom Event</h1>"
src << "<h2 class='alert'>A custom event is taking place. OOC Info:</h2>"
src << "<span class='alert'>[custom_event_msg]</span>"
src << "<br>"
if(holder)
add_admin_verbs()
admin_memo_show()
// Forcibly enable hardware-accelerated graphics, as we need them for the lighting overlays.
// (but turn them off first, since sometimes BYOND doesn't turn them on properly otherwise)
spawn(5) // And wait a half-second, since it sounds like you can do this too fast.
if(src)
winset(src, null, "command=\".configure graphics-hwmode off\"")
sleep(2) // wait a bit more, possibly fixes hardware mode not re-activating right
winset(src, null, "command=\".configure graphics-hwmode on\"")
log_client_to_db()
send_resources()
nanomanager.send_resources(src)
if(prefs.lastchangelog != changelog_hash) //bolds the changelog button on the interface so we know there are updates.
src << "<span class='info'>You have unread updates in the changelog.</span>"
winset(src, "rpane.changelog", "background-color=#eaeaea;font-style=bold")
if(config.aggressive_changelog)
src.changes()
//////////////
//DISCONNECT//
//////////////
/client/Del()
if(holder)
holder.owner = null
admins -= src
directory -= ckey
clients -= src
return ..()
// here because it's similar to below
// Returns null if no DB connection can be established, or -1 if the requested key was not found in the database
/proc/get_player_age(key)
establish_db_connection()
if(!dbcon.IsConnected())
return null
var/sql_ckey = sql_sanitize_text(ckey(key))
var/DBQuery/query = dbcon.NewQuery("SELECT datediff(Now(),firstseen) as age FROM erro_player WHERE ckey = '[sql_ckey]'")
query.Execute()
if(query.NextRow())
return text2num(query.item[1])
else
return -1
/client/proc/log_client_to_db()
if ( IsGuestKey(src.key) )
return
establish_db_connection()
if(!dbcon.IsConnected())
return
var/sql_ckey = sql_sanitize_text(src.ckey)
var/DBQuery/query = dbcon.NewQuery("SELECT id, datediff(Now(),firstseen) as age FROM erro_player WHERE ckey = '[sql_ckey]'")
query.Execute()
var/sql_id = 0
player_age = 0 // New players won't have an entry so knowing we have a connection we set this to zero to be updated if their is a record.
while(query.NextRow())
sql_id = query.item[1]
player_age = text2num(query.item[2])
break
var/DBQuery/query_ip = dbcon.NewQuery("SELECT ckey FROM erro_player WHERE ip = '[address]'")
query_ip.Execute()
related_accounts_ip = ""
while(query_ip.NextRow())
related_accounts_ip += "[query_ip.item[1]], "
break
var/DBQuery/query_cid = dbcon.NewQuery("SELECT ckey FROM erro_player WHERE computerid = '[computer_id]'")
query_cid.Execute()
related_accounts_cid = ""
while(query_cid.NextRow())
related_accounts_cid += "[query_cid.item[1]], "
break
//Just the standard check to see if it's actually a number
if(sql_id)
if(istext(sql_id))
sql_id = text2num(sql_id)
if(!isnum(sql_id))
return
var/admin_rank = "Player"
if(src.holder)
admin_rank = src.holder.rank
var/sql_ip = sql_sanitize_text(src.address)
var/sql_computerid = sql_sanitize_text(src.computer_id)
var/sql_admin_rank = sql_sanitize_text(admin_rank)
if(sql_id)
//Player already identified previously, we need to just update the 'lastseen', 'ip' and 'computer_id' variables
var/DBQuery/query_update = dbcon.NewQuery("UPDATE erro_player SET lastseen = Now(), ip = '[sql_ip]', computerid = '[sql_computerid]', lastadminrank = '[sql_admin_rank]' WHERE id = [sql_id]")
query_update.Execute()
else
//New player!! Need to insert all the stuff
var/DBQuery/query_insert = dbcon.NewQuery("INSERT INTO erro_player (id, ckey, firstseen, lastseen, ip, computerid, lastadminrank) VALUES (null, '[sql_ckey]', Now(), Now(), '[sql_ip]', '[sql_computerid]', '[sql_admin_rank]')")
query_insert.Execute()
//Logging player access
var/serverip = "[world.internet_address]:[world.port]"
var/DBQuery/query_accesslog = dbcon.NewQuery("INSERT INTO `erro_connection_log`(`id`,`datetime`,`serverip`,`ckey`,`ip`,`computerid`) VALUES(null,Now(),'[serverip]','[sql_ckey]','[sql_ip]','[sql_computerid]');")
query_accesslog.Execute()
#undef TOPIC_SPAM_DELAY
#undef UPLOAD_LIMIT
#undef MIN_CLIENT_VERSION
//checks if a client is afk
//3000 frames = 5 minutes
/client/proc/is_afk(duration=3000)
if(inactivity > duration) return inactivity
return 0
/client/proc/last_activity_seconds()
return inactivity / 10
//send resources to the client. It's here in its own proc so we can move it around easiliy if need be
/client/proc/send_resources()
getFiles(
'html/search.js',
'html/panels.css',
'html/images/loading.gif',
'html/images/ntlogo.png',
'html/images/talisman.png',
'icons/pda_icons/pda_atmos.png',
'icons/pda_icons/pda_back.png',
'icons/pda_icons/pda_bell.png',
'icons/pda_icons/pda_blank.png',
'icons/pda_icons/pda_boom.png',
'icons/pda_icons/pda_bucket.png',
'icons/pda_icons/pda_crate.png',
'icons/pda_icons/pda_cuffs.png',
'icons/pda_icons/pda_eject.png',
'icons/pda_icons/pda_exit.png',
'icons/pda_icons/pda_flashlight.png',
'icons/pda_icons/pda_honk.png',
'icons/pda_icons/pda_mail.png',
'icons/pda_icons/pda_medical.png',
'icons/pda_icons/pda_menu.png',
'icons/pda_icons/pda_mule.png',
'icons/pda_icons/pda_notes.png',
'icons/pda_icons/pda_power.png',
'icons/pda_icons/pda_rdoor.png',
'icons/pda_icons/pda_reagent.png',
'icons/pda_icons/pda_refresh.png',
'icons/pda_icons/pda_scanner.png',
'icons/pda_icons/pda_signaler.png',
'icons/pda_icons/pda_status.png',
'icons/spideros_icons/sos_1.png',
'icons/spideros_icons/sos_2.png',
'icons/spideros_icons/sos_3.png',
'icons/spideros_icons/sos_4.png',
'icons/spideros_icons/sos_5.png',
'icons/spideros_icons/sos_6.png',
'icons/spideros_icons/sos_7.png',
'icons/spideros_icons/sos_8.png',
'icons/spideros_icons/sos_9.png',
'icons/spideros_icons/sos_10.png',
'icons/spideros_icons/sos_11.png',
'icons/spideros_icons/sos_12.png',
'icons/spideros_icons/sos_13.png',
'icons/spideros_icons/sos_14.png'
)
mob/proc/MayRespawn()
return 0
client/proc/MayRespawn()
if(mob)
return mob.MayRespawn()
// Something went wrong, client is usually kicked or transfered to a new mob at this point
return 0
client/verb/character_setup()
set name = "Character Setup"
set category = "Preferences"
if(prefs)
prefs.ShowChoices(usr)
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