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1 | scope simpleSpamClientDetect2. |
2 | |
3 | static int #interval = 60000; |
4 | static double #perSecondThreshold = 2.0; // per IP + URI |
5 | static int #spamMax; |
6 | static Set<S> #whiteList = syncSet(myIPs()); |
7 | static Lock #myLock = lock(); |
8 | |
9 | // ip + uri -> time, count |
10 | static Map<PairS, Pair<Long, Int>> #ipsAndUris = synchroMap(); |
11 | |
12 | // returns pair(count, bad) |
13 | static Pair<Int, Bool> simpleSpamClientDetect2(S clientIP, S uri) {
|
14 | lock myLock; |
15 | // TODO: clean up map sometimes |
16 | Pair<S> pair = pair(clientIP, uri); |
17 | Pair<Long, Int> value = ipsAndUris.get(pair); |
18 | if (value == null || now() > value.a+interval) |
19 | ipsAndUris.put(pair, value = pair(now(), 1)); |
20 | else |
21 | value.b++; |
22 | spamMax = iround(perSecondThreshold*interval/1000); |
23 | ret pair(value.b, !contains(whiteList, clientIP) && value.b >= spamMax); |
24 | } |
25 | |
26 | // returns new count |
27 | static int #markNoSpam(S clientIP, S uri) {
|
28 | lock myLock; |
29 | PairS pair = pair(clientIP, uri); |
30 | Pair<Long, Int> value = ipsAndUris.get(pair); |
31 | if (value != null && value.b > 0) ret --value.b; |
32 | ret -1; |
33 | } |
34 | |
35 | end scope |
Began life as a copy of #1014077
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| Snippet ID: | #1014225 |
| Snippet name: | simpleSpamClientDetect2 |
| Eternal ID of this version: | #1014225/8 |
| Text MD5: | 6a6c27960c29d6f3eebf34d6977e1dbf |
| Transpilation MD5: | e6daaba8c32f66f0ca587065ac6e94be |
| Author: | stefan |
| Category: | javax / http |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2020-10-27 13:08:06 |
| Source code size: | 1062 bytes / 35 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 395 / 488 |
| Version history: | 7 change(s) |
| Referenced in: | [show references] |