--- /dev/null
+/*
+ * Sone - WebOfTrustConnector.java - Copyright © 2010–2019 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.freenet.wot
+
+import com.google.inject.*
+import freenet.support.*
+import freenet.support.api.*
+import net.pterodactylus.sone.freenet.*
+import net.pterodactylus.sone.freenet.plugin.*
+import net.pterodactylus.sone.utils.NumberParsers.*
+import java.lang.String.*
+import java.util.*
+import java.util.logging.*
+import java.util.logging.Logger
+import java.util.logging.Logger.*
+
+/**
+ * Connector for the Web of Trust plugin.
+ */
+@Singleton
+class WebOfTrustConnector @Inject constructor(private val pluginConnector: PluginConnector) {
+
+ private val logger: Logger = getLogger(WebOfTrustConnector::class.java.name)
+
+ fun stop() {
+ /* does nothing. */
+ }
+
+ /**
+ * Loads all own identities from the Web of Trust plugin.
+ *
+ * @return All own identity
+ * @throws WebOfTrustException if the own identities can not be loaded
+ */
+ @Throws(WebOfTrustException::class)
+ fun loadAllOwnIdentities(): Set<OwnIdentity> {
+ val (fields) = performRequest(SimpleFieldSetBuilder().put("Message", "GetOwnIdentities").get())
+ var ownIdentityCounter = -1
+ val ownIdentities = HashSet<OwnIdentity>()
+ while (true) {
+ val id = fields.get("Identity" + ++ownIdentityCounter) ?: break
+ val requestUri = fields.get("RequestURI$ownIdentityCounter")
+ val insertUri = fields.get("InsertURI$ownIdentityCounter")
+ val nickname = fields.get("Nickname$ownIdentityCounter")
+ val ownIdentity = DefaultOwnIdentity(id, nickname, requestUri, insertUri)
+ ownIdentity.setContexts(parseContexts("Contexts$ownIdentityCounter.", fields))
+ ownIdentity.properties = parseProperties("Properties$ownIdentityCounter.", fields)
+ ownIdentities.add(ownIdentity)
+ }
+ return ownIdentities
+ }
+
+ /**
+ * Loads all identities that the given identities trusts with a score of
+ * more than 0 and the (optional) given context.
+ *
+ * @param ownIdentity The own identity
+ * @param context The context to filter, or `null`
+ * @return All trusted identities
+ * @throws PluginException if an error occured talking to the Web of Trust plugin
+ */
+ @Throws(PluginException::class)
+ @JvmOverloads
+ fun loadTrustedIdentities(ownIdentity: OwnIdentity, context: String? = null): Set<Identity> {
+ val (fields) = performRequest(SimpleFieldSetBuilder().put("Message", "GetIdentitiesByScore").put("Truster", ownIdentity.id).put("Selection", "+").put("Context", context ?: "").put("WantTrustValues", "true").get())
+ val identities = HashSet<Identity>()
+ var identityCounter = -1
+ while (true) {
+ val id = fields.get("Identity" + ++identityCounter) ?: break
+ val nickname = fields.get("Nickname$identityCounter")
+ val requestUri = fields.get("RequestURI$identityCounter")
+ val identity = DefaultIdentity(id, nickname, requestUri)
+ identity.setContexts(parseContexts("Contexts$identityCounter.", fields))
+ identity.properties = parseProperties("Properties$identityCounter.", fields)
+ val trust = parseInt(fields.get("Trust$identityCounter"), null)
+ val score = parseInt(fields.get("Score$identityCounter"), 0)!!
+ val rank = parseInt(fields.get("Rank$identityCounter"), 0)!!
+ identity.setTrust(ownIdentity, Trust(trust, score, rank))
+ identities.add(identity)
+ }
+ return identities
+ }
+
+ /**
+ * Adds the given context to the given identity.
+ *
+ * @param ownIdentity The identity to add the context to
+ * @param context The context to add
+ * @throws PluginException if an error occured talking to the Web of Trust plugin
+ */
+ @Throws(PluginException::class)
+ fun addContext(ownIdentity: OwnIdentity, context: String) {
+ performRequest(SimpleFieldSetBuilder().put("Message", "AddContext").put("Identity", ownIdentity.id).put("Context", context).get())
+ }
+
+ /**
+ * Removes the given context from the given identity.
+ *
+ * @param ownIdentity The identity to remove the context from
+ * @param context The context to remove
+ * @throws PluginException if an error occured talking to the Web of Trust plugin
+ */
+ @Throws(PluginException::class)
+ fun removeContext(ownIdentity: OwnIdentity, context: String) {
+ performRequest(SimpleFieldSetBuilder().put("Message", "RemoveContext").put("Identity", ownIdentity.id).put("Context", context).get())
+ }
+
+ /**
+ * Sets the property with the given name to the given value.
+ *
+ * @param ownIdentity The identity to set the property on
+ * @param name The name of the property to set
+ * @param value The value to set
+ * @throws PluginException if an error occured talking to the Web of Trust plugin
+ */
+ @Throws(PluginException::class)
+ fun setProperty(ownIdentity: OwnIdentity, name: String, value: String) {
+ performRequest(SimpleFieldSetBuilder().put("Message", "SetProperty").put("Identity", ownIdentity.id).put("Property", name).put("Value", value).get())
+ }
+
+ /**
+ * Removes the property with the given name.
+ *
+ * @param ownIdentity The identity to remove the property from
+ * @param name The name of the property to remove
+ * @throws PluginException if an error occured talking to the Web of Trust plugin
+ */
+ @Throws(PluginException::class)
+ fun removeProperty(ownIdentity: OwnIdentity, name: String) {
+ performRequest(SimpleFieldSetBuilder().put("Message", "RemoveProperty").put("Identity", ownIdentity.id).put("Property", name).get())
+ }
+
+ /**
+ * Returns the trust for the given identity assigned to it by the given own
+ * identity.
+ *
+ * @param ownIdentity The own identity
+ * @param identity The identity to get the trust for
+ * @return The trust for the given identity
+ * @throws PluginException if an error occured talking to the Web of Trust plugin
+ */
+ @Throws(PluginException::class)
+ fun getTrust(ownIdentity: OwnIdentity, identity: Identity): Trust {
+ val (fields) = performRequest(SimpleFieldSetBuilder().put("Message", "GetIdentity").put("Truster", ownIdentity.id).put("Identity", identity.id).get())
+ val trust = fields.get("Trust")
+ val score = fields.get("Score")
+ val rank = fields.get("Rank")
+ var explicit: Int? = null
+ var implicit: Int? = null
+ var distance: Int? = null
+ try {
+ explicit = Integer.valueOf(trust)
+ } catch (nfe1: NumberFormatException) {
+ /* ignore. */
+ }
+
+ try {
+ implicit = Integer.valueOf(score)
+ } catch (nfe1: NumberFormatException) {
+ /* ignore. */
+ }
+
+ try {
+ distance = Integer.valueOf(rank)
+ } catch (nfe1: NumberFormatException) {
+ /* ignore. */
+ }
+
+ return Trust(explicit, implicit, distance)
+ }
+
+ /**
+ * Sets the trust for the given identity.
+ *
+ * @param ownIdentity The trusting identity
+ * @param identity The trusted identity
+ * @param trust The amount of trust (-100 thru 100)
+ * @param comment The comment or explanation of the trust value
+ * @throws PluginException if an error occured talking to the Web of Trust plugin
+ */
+ @Throws(PluginException::class)
+ fun setTrust(ownIdentity: OwnIdentity, identity: Identity, trust: Int, comment: String) {
+ performRequest(SimpleFieldSetBuilder().put("Message", "SetTrust").put("Truster", ownIdentity.id).put("Trustee", identity.id).put("Value", trust.toString()).put("Comment", comment).get())
+ }
+
+ /**
+ * Removes any trust assignment of the given own identity for the given
+ * identity.
+ *
+ * @param ownIdentity The own identity
+ * @param identity The identity to remove all trust for
+ * @throws WebOfTrustException if an error occurs
+ */
+ @Throws(WebOfTrustException::class)
+ fun removeTrust(ownIdentity: OwnIdentity, identity: Identity) {
+ performRequest(SimpleFieldSetBuilder().put("Message", "RemoveTrust").put("Truster", ownIdentity.id).put("Trustee", identity.id).get())
+ }
+
+ /**
+ * Pings the Web of Trust plugin. If the plugin can not be reached, a
+ * [PluginException] is thrown.
+ *
+ * @throws PluginException if the plugin is not loaded
+ */
+ @Throws(PluginException::class)
+ fun ping() {
+ performRequest(SimpleFieldSetBuilder().put("Message", "Ping").get())
+ }
+
+ private fun performRequest(fields: SimpleFieldSet, data: Bucket? = null): PluginReply {
+ logger.log(Level.FINE, format("Sending FCP Request: %s", fields.get("Message")))
+ val pluginReply = pluginConnector.sendRequest(WOT_PLUGIN_NAME, "", fields, data)
+ logger.log(Level.FINEST, format("Received FCP Response for %s: %s", fields.get("Message"), pluginReply.fields.get("Message")))
+ if ("Error" == pluginReply.fields.get("Message")) {
+ throw PluginException("Could not perform request for " + fields.get("Message"))
+ }
+ return pluginReply
+ }
+
+}
+
+private const val WOT_PLUGIN_NAME = "plugins.WebOfTrust.WebOfTrust"
+
+private fun parseContexts(prefix: String, fields: SimpleFieldSet): Set<String> {
+ val contexts = HashSet<String>()
+ var contextCounter = -1
+ while (true) {
+ val context = fields.get(prefix + "Context" + ++contextCounter) ?: break
+ contexts.add(context)
+ }
+ return contexts
+}
+
+private fun parseProperties(prefix: String, fields: SimpleFieldSet): Map<String, String> {
+ val properties = HashMap<String, String>()
+ var propertiesCounter = -1
+ while (true) {
+ val propertyName = fields.get(prefix + "Property" + ++propertiesCounter + ".Name") ?: break
+ val propertyValue = fields.get(prefix + "Property" + propertiesCounter + ".Value")
+ properties[propertyName] = propertyValue
+ }
+ return properties
+}
+
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