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package ai.platon.pulsar.skeleton.crawl.fetch.privacy
import ai.platon.pulsar.common.AppPaths
import ai.platon.pulsar.common.SParser
import ai.platon.pulsar.common.browser.BrowserFiles
import ai.platon.pulsar.common.browser.BrowserType
import ai.platon.pulsar.common.browser.Fingerprint
import ai.platon.pulsar.common.config.CapabilityTypes
import ai.platon.pulsar.common.config.CapabilityTypes.*
import ai.platon.pulsar.common.config.ImmutableConfig
import ai.platon.pulsar.common.proxy.ProxyEntry
import org.slf4j.LoggerFactory
import java.nio.file.Path
import java.util.concurrent.ConcurrentHashMap
data class PrivacyAgentId(
val contextDir: Path,
val browserType: BrowserType
): Comparable {
val ident = contextDir.last().toString()
val display = ident.substringAfter(PrivacyContext.CONTEXT_DIR_PREFIX)
/**
* If true, the privacy agent opens browser just like a real user does every day.
* */
val isSystemDefault get() = this.contextDir == AppPaths.SYSTEM_DEFAULT_BROWSER_CONTEXT_DIR_PLACEHOLDER
/**
* If true, the privacy agent opens browser with the default data dir, the default data dir will not be removed
* after the browser closes.
* */
val isDefault get() = this.contextDir == PrivacyContext.DEFAULT_CONTEXT_DIR
/**
* If true, the privacy agent opens browser with the prototype data dir.
* Every change to the browser will be kept in the prototype data dir, and every temporary privacy agent
* uses a copy of the prototype data dir.
* */
val isPrototype get() = this.contextDir == PrivacyContext.PROTOTYPE_CONTEXT_DIR
/**
* If true, the privacy agent opens browser with one of a set of pre-created data dirs, the pre-created data dirs will
* not be removed after the browser closes.
* */
val isGroup get() = this.contextDir.startsWith(AppPaths.CONTEXT_GROUP_BASE_DIR)
/**
* If true, the privacy agent opens browser with a temporary data dir, the temporary data dir is created before the
* browser starts and will be deleted after the browser closes.
* */
val isTemporary get() = this.contextDir.startsWith(AppPaths.CONTEXT_TMP_DIR)
val isPermanent get() = isSystemDefault || isPrototype
/**
* The PrivacyAgent equality.
* Note: do not use the default equality function
* */
override fun equals(other: Any?): Boolean {
if (this === other) {
return true
}
return other is PrivacyAgentId
&& other.contextDir == contextDir
&& other.browserType.name == browserType.name
}
override fun hashCode(): Int {
return 31 * contextDir.hashCode() + browserType.name.hashCode()
}
override fun compareTo(other: PrivacyAgentId): Int {
val b = contextDir.compareTo(other.contextDir)
if (b != 0) {
return b
}
return browserType.name.compareTo(other.browserType.name)
}
}
/**
* A privacy agent defines a unique agent to visit websites.
*
* Page visits through different privacy agents should not be detected
* as the same person, even if the visits are from the same host.
* */
data class PrivacyAgent(
val contextDir: Path,
var fingerprint: Fingerprint
): Comparable {
val id = PrivacyAgentId(contextDir, fingerprint.browserType)
val ident get() = id.ident
val display get() = id.display
val browserType get() = fingerprint.browserType
val isSystemDefault get() = id.isSystemDefault
val isDefault get() = id.isDefault
val isPrototype get() = id.isPrototype
val isGroup get() = id.isGroup
val isTemporary get() = id.isTemporary
val isPermanent get() = id.isPermanent
constructor(contextDir: Path, browserType: BrowserType): this(contextDir, Fingerprint(browserType))
/**
* The PrivacyAgent equality.
* Note: do not use the default equality function
* */
override fun equals(other: Any?) = other is PrivacyAgent && other.id == this.id
override fun hashCode() = id.hashCode()
override fun compareTo(other: PrivacyAgent) = id.compareTo(other.id)
// override fun toString() = /** AUTO GENERATED **/
companion object {
/**
* The system default privacy agent opens browser just like real users do every day.
* */
val SYSTEM_DEFAULT = PrivacyAgent(AppPaths.SYSTEM_DEFAULT_BROWSER_CONTEXT_DIR_PLACEHOLDER, BrowserType.PULSAR_CHROME)
/**
* The prototype privacy agent opens browser with the prototype data dir.
* Every change to the browser will be kept in the prototype data dir, and every temporary privacy agent
* uses a copy of the prototype data dir.
* */
val PROTOTYPE = PrivacyAgent(PrivacyContext.PROTOTYPE_CONTEXT_DIR, BrowserType.PULSAR_CHROME)
/**
* The default privacy agent opens browser with the default data dir, the default data dir will not be removed
* after the browser closes.
* */
val DEFAULT = PrivacyAgent(PrivacyContext.DEFAULT_CONTEXT_DIR, BrowserType.PULSAR_CHROME)
/**
* The privacy agent opens browser with a sequential data dir.
* */
val NEXT_SEQUENTIAL get() = PrivacyAgent(PrivacyContext.NEXT_SEQUENTIAL_CONTEXT_DIR, BrowserType.PULSAR_CHROME)
/**
* The random privacy agent opens browser with a random data dir.
* */
val RANDOM get() = PrivacyAgent(PrivacyContext.RANDOM_CONTEXT_DIR, BrowserType.PULSAR_CHROME)
}
}
/**
* The unique browser id.
*
* Every browser instance have a unique fingerprint and a context directory.
* */
data class BrowserId(
val contextDir: Path,
val fingerprint: Fingerprint,
): Comparable {
val privacyAgent = PrivacyAgent(contextDir, fingerprint)
val browserType: BrowserType get() = fingerprint.browserType
val userDataDir: Path get() = when {
privacyAgent.isSystemDefault -> AppPaths.SYSTEM_DEFAULT_BROWSER_DATA_DIR_PLACEHOLDER
privacyAgent.isPrototype -> PrivacyContext.PROTOTYPE_DATA_DIR
else -> contextDir.resolve(browserType.name.lowercase())
}
/**
* A human-readable short display of the context.
* For example,
* 1. prototype
* 2. 07171ChsOE207
* */
val display get() = contextDir.last().toString().substringAfter(PrivacyContext.CONTEXT_DIR_PREFIX)
constructor(privacyAgent: PrivacyAgent): this(privacyAgent.contextDir, privacyAgent.fingerprint)
constructor(contextDir: Path, browserType: BrowserType): this(contextDir, Fingerprint(browserType))
fun setProxy(schema: String, hostPort: String, username: String?, password: String?) {
fingerprint.setProxy(schema, hostPort, username, password)
}
fun setProxy(proxy: ProxyEntry) = fingerprint.setProxy(proxy)
override fun equals(other: Any?): Boolean {
return other is BrowserId && other.privacyAgent == privacyAgent
}
override fun hashCode() = privacyAgent.hashCode()
override fun compareTo(other: BrowserId) = privacyAgent.compareTo(other.privacyAgent)
override fun toString(): String {
return "{$fingerprint, $contextDir}"
}
companion object {
/**
* Represent the real user's default browser.
* */
val SYSTEM_DEFAULT = BrowserId(PrivacyAgent.SYSTEM_DEFAULT)
@Deprecated("Use SYSTEM_DEFAULT instead", ReplaceWith("SYSTEM_DEFAULT"))
val USER_DEFAULT = SYSTEM_DEFAULT
/**
* Represent the default browser.
* */
val DEFAULT = BrowserId(PrivacyAgent.DEFAULT)
/**
* Represent the prototype browser.
* */
val PROTOTYPE = BrowserId(PrivacyAgent.PROTOTYPE)
/**
* Represent a browser with a sequential context dir.
* */
val NEXT_SEQUENTIAL get() = BrowserId(PrivacyAgent.NEXT_SEQUENTIAL)
/**
* Create a browser with random context dir.
* */
val RANDOM get() = BrowserId(PrivacyAgent.RANDOM)
}
}
interface PrivacyAgentGenerator {
var conf: ImmutableConfig
operator fun invoke(fingerprint: Fingerprint): PrivacyAgent
}
open class DefaultPrivacyAgentGenerator: PrivacyAgentGenerator {
override var conf: ImmutableConfig = ImmutableConfig.DEFAULT
override fun invoke(fingerprint: Fingerprint): PrivacyAgent = PrivacyAgent.DEFAULT
}
open class SystemDefaultPrivacyAgentGenerator: PrivacyAgentGenerator {
override var conf: ImmutableConfig = ImmutableConfig()
override fun invoke(fingerprint: Fingerprint) = PrivacyAgent.SYSTEM_DEFAULT
}
@Deprecated("Use SystemDefaultPrivacyAgentGenerator instead", ReplaceWith("SystemDefaultPrivacyAgentGenerator"))
open class UserDefaultPrivacyAgentGenerator: PrivacyAgentGenerator {
override var conf: ImmutableConfig = ImmutableConfig.DEFAULT
override fun invoke(fingerprint: Fingerprint) = PrivacyAgent.SYSTEM_DEFAULT
}
open class PrototypePrivacyAgentGenerator: PrivacyAgentGenerator {
override var conf: ImmutableConfig = ImmutableConfig.DEFAULT
override fun invoke(fingerprint: Fingerprint) = PrivacyAgent.PROTOTYPE
}
open class SequentialPrivacyAgentGenerator: PrivacyAgentGenerator {
override var conf: ImmutableConfig = ImmutableConfig.DEFAULT
override fun invoke(fingerprint: Fingerprint): PrivacyAgent {
// The number of allowed active privacy contexts
val privacyContextNumber = conf.getInt(CapabilityTypes.PRIVACY_CONTEXT_NUMBER, 2)
// The minimum number of sequential privacy agents, the active privacy contexts is chosen from them
val minAgents = conf.getInt(MIN_SEQUENTIAL_PRIVACY_AGENT_NUMBER, 10)
// The maximum number of sequential privacy agents, the active privacy contexts is chosen from them
var maxAgents = conf.getInt(CapabilityTypes.MAX_SEQUENTIAL_PRIVACY_AGENT_NUMBER, minAgents)
maxAgents = maxAgents.coerceAtLeast(privacyContextNumber).coerceAtLeast(minAgents)
return PrivacyAgent(BrowserFiles.computeNextSequentialContextDir("default", fingerprint, maxAgents), fingerprint)
}
}
/**
* The random privacy agent generator.
*
* If the prototype Chrome browser does not exist, it acts as "New Incognito window", or in Chinese, "打开无痕浏览器".
* If the prototype Chrome browser exists, it copies the prototype Chrome browser's user data directory, and inherits
* the prototype Chrome browser's settings.
* */
open class RandomPrivacyAgentGenerator: PrivacyAgentGenerator {
override var conf: ImmutableConfig = ImmutableConfig.DEFAULT
override fun invoke(fingerprint: Fingerprint): PrivacyAgent =
PrivacyAgent(BrowserFiles.computeRandomTmpContextDir(), fingerprint)
}
class PrivacyAgentGeneratorFactory(val conf: ImmutableConfig) {
companion object {
private val generators = ConcurrentHashMap()
}
private val logger = LoggerFactory.getLogger(PrivacyAgentGeneratorFactory::class.java)
val generator: PrivacyAgentGenerator get() {
val className = conf[PRIVACY_AGENT_GENERATOR_CLASS] ?: DefaultPrivacyAgentGenerator::class.java.name
return getOrCreate(className)
}
private fun getOrCreate(className: String): PrivacyAgentGenerator {
synchronized(generators) {
return getOrCreate0(className)
}
}
private fun getOrCreate0(className: String): PrivacyAgentGenerator {
var gen = generators[className]
if (gen != null) {
return gen
}
gen = forName(conf, className)
generators[gen::class.java.name] = gen
generators[className] = gen
logger.info("Created privacy agent generator | {}", gen::class.java.name)
return gen
}
/**
* Get the value of the `name` property as a `Class`.
* If the property is not set, or the class is not found, use the default class.
* The default class is `DefaultPageEvent`.
*
* Set the class:
* `System.setProperty(CapabilityTypes.PRIVACY_AGENT_GENERATOR_CLASS, "ai.platon.pulsar.skeleton.crawl.fetch.privacy.DefaultPrivacyAgentGenerator")`
* */
private fun forName(conf: ImmutableConfig, className: String): PrivacyAgentGenerator {
val defaultClazz = DefaultPrivacyAgentGenerator::class.java
val clazz = try {
SParser(className).getClass(defaultClazz)
} catch (e: Exception) {
logger.warn("No configured privacy agent generator {}, use default ({})",
className, defaultClazz.simpleName)
defaultClazz
}
val gen = clazz.constructors.first { it.parameters.isEmpty() }.newInstance() as PrivacyAgentGenerator
gen.conf = conf
return gen
}
}
