chinwag/chinwag-android
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2952/proxy (#2961)

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* replace hard-coded strings with existing constants

* proxy port

* * custom proxy port and hostname inputs
* typesafety, refactor, linting, unit tests

* relocate ProxyConfiguration in app structure

* remove unused editTextPreference fn

* allow preference category to have no title

* refactor proxy prefs hierarchy/dependency
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kylegoetz 2022-12-07 12:29:18 -06:00 • committed by GitHub
commit 25443217c2
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6 changed files with 143 additions and 21 deletions
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32
app/src/main/java/com/keylesspalace/tusky/settings/ProxyConfiguration.kt Normal file
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package com.keylesspalace.tusky.settings
import java.net.IDN
class ProxyConfiguration private constructor(
val hostname: String,
val port: Int
) {
companion object {
fun create(hostname: String, port: Int): ProxyConfiguration? {
if (isValidHostname(IDN.toASCII(hostname)) && isValidProxyPort(port)) {
return ProxyConfiguration(hostname, port)
}
return null
}
fun isValidProxyPort(value: Any): Boolean = when (value) {
is String -> if (value == "") true else value.runCatching(String::toInt).map(
PROXY_RANGE::contains
).getOrDefault(false)
is Int -> PROXY_RANGE.contains(value)
else -> false
}
fun isValidHostname(hostname: String): Boolean =
IP_ADDRESS_REGEX.matches(hostname) || HOSTNAME_REGEX.matches(hostname)
const val MIN_PROXY_PORT = 0
const val MAX_PROXY_PORT = 65535
}
}
private val PROXY_RANGE = IntRange(ProxyConfiguration.MIN_PROXY_PORT, ProxyConfiguration.MAX_PROXY_PORT)
private val IP_ADDRESS_REGEX = Regex("^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$")
private val HOSTNAME_REGEX = Regex("^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\\-]*[A-Za-z0-9])$")