diff --git a/token-erc-721/chaincode-java/Dockerfile b/token-erc-721/chaincode-java/Dockerfile new file mode 100755 index 00000000..b65676e3 --- /dev/null +++ b/token-erc-721/chaincode-java/Dockerfile @@ -0,0 +1,31 @@ +# the first stage +FROM gradle:jdk11 AS GRADLE_BUILD + +# copy the build.gradle and src code to the container +COPY src/ src/ +COPY build.gradle ./ + +# Build and package our code +RUN gradle --no-daemon build shadowJar -x checkstyleMain -x checkstyleTest + + +# the second stage of our build just needs the compiled files +FROM openjdk:11-jre +ARG CC_SERVER_PORT=9999 + +# Setup tini to work better handle signals +ENV TINI_VERSION v0.19.0 +ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini /tini +RUN chmod +x /tini + +RUN addgroup --system javauser && useradd -g javauser javauser + +# copy only the artifacts we need from the first stage and discard the rest +COPY --chown=javauser:javauser --from=GRADLE_BUILD /home/gradle/build/libs/chaincode.jar /chaincode.jar +COPY --chown=javauser:javauser docker/docker-entrypoint.sh /docker-entrypoint.sh + +ENV PORT $CC_SERVER_PORT +EXPOSE $CC_SERVER_PORT + +USER javauser +ENTRYPOINT [ "/tini", "--", "/docker-entrypoint.sh" ] diff --git a/token-erc-721/chaincode-java/build.gradle b/token-erc-721/chaincode-java/build.gradle new file mode 100755 index 00000000..dd0f5c41 --- /dev/null +++ b/token-erc-721/chaincode-java/build.gradle @@ -0,0 +1,91 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ + +plugins { + id 'com.github.johnrengelman.shadow' version '5.1.0' + id 'application' + id 'checkstyle' + id 'jacoco' +} + +group 'org.hyperledger.fabric.samples' +version '1.0-SNAPSHOT' + +dependencies { + + implementation 'org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim:2.4.1' + implementation 'org.json:json:+' + implementation 'com.owlike:genson:1.5' + testImplementation 'org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim:2.4.1' + testImplementation 'org.junit.jupiter:junit-jupiter:5.4.2' + testImplementation 'org.assertj:assertj-core:3.11.1' + testImplementation 'org.mockito:mockito-core:2.23.4' + testRuntimeOnly("net.bytebuddy:byte-buddy:1.10.6") + +} + +repositories { + mavenCentral() + maven { + url 'https://jitpack.io' + } +} + +application { + mainClass = 'org.hyperledger.fabric.contract.ContractRouter' +} + +checkstyle { + toolVersion '8.21' + configFile file("config/checkstyle/checkstyle.xml") +} + +checkstyleMain { + source ='src/main/java' +} + +checkstyleTest { + source ='src/test/java' +} + +jacocoTestReport { + dependsOn test +} + +jacocoTestCoverageVerification { + violationRules { + rule { + limit { + minimum = 0.8 + } + } + } + + finalizedBy jacocoTestReport +} + +test { + useJUnitPlatform() + testLogging { + showStandardStreams = true + } + testLogging { + events "passed", "skipped", "failed" + } +} + +mainClassName = 'org.hyperledger.fabric.contract.ContractRouter' + +shadowJar { + baseName = 'chaincode' + version = null + classifier = null + + manifest { + attributes 'Main-Class': 'org.hyperledger.fabric.contract.ContractRouter' + } +} + +check.dependsOn jacocoTestCoverageVerification +installDist.dependsOn check diff --git a/token-erc-721/chaincode-java/config/checkstyle/checkstyle.xml b/token-erc-721/chaincode-java/config/checkstyle/checkstyle.xml new file mode 100644 index 00000000..dd84e705 --- /dev/null +++ b/token-erc-721/chaincode-java/config/checkstyle/checkstyle.xml @@ -0,0 +1,174 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/token-erc-721/chaincode-java/config/checkstyle/suppressions.xml b/token-erc-721/chaincode-java/config/checkstyle/suppressions.xml new file mode 100644 index 00000000..199f5518 --- /dev/null +++ b/token-erc-721/chaincode-java/config/checkstyle/suppressions.xml @@ -0,0 +1,24 @@ + + + + + + + + + + + + + + + + + + + diff --git a/token-erc-721/chaincode-java/docker/docker-entrypoint.sh b/token-erc-721/chaincode-java/docker/docker-entrypoint.sh new file mode 100644 index 00000000..9fa2bd97 --- /dev/null +++ b/token-erc-721/chaincode-java/docker/docker-entrypoint.sh @@ -0,0 +1,16 @@ +#!/usr/bin/env bash +# +# SPDX-License-Identifier: Apache-2.0 +# +set -euo pipefail +: ${CORE_PEER_TLS_ENABLED:="false"} +: ${DEBUG:="false"} + +if [ "${DEBUG,,}" = "true" ]; then + java -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=0.0.0.0:8000 -jar /chaincode.jar +elif [ "${CORE_PEER_TLS_ENABLED,,}" = "true" ]; then + java -jar /chaincode.jar # todo +else + java -jar /chaincode.jar +fi + diff --git a/token-erc-721/chaincode-java/gradle/wrapper/gradle-wrapper.jar b/token-erc-721/chaincode-java/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 00000000..7454180f Binary files /dev/null and b/token-erc-721/chaincode-java/gradle/wrapper/gradle-wrapper.jar differ diff --git a/token-erc-721/chaincode-java/gradle/wrapper/gradle-wrapper.properties b/token-erc-721/chaincode-java/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 00000000..2e6e5897 --- /dev/null +++ b/token-erc-721/chaincode-java/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/token-erc-721/chaincode-java/gradlew b/token-erc-721/chaincode-java/gradlew new file mode 100755 index 00000000..1b6c7873 --- /dev/null +++ b/token-erc-721/chaincode-java/gradlew @@ -0,0 +1,234 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit + +APP_NAME="Gradle" +APP_BASE_NAME=${0##*/} + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + +# Collect all arguments for the java command; +# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of +# shell script including quotes and variable substitutions, so put them in +# double quotes to make sure that they get re-expanded; and +# * put everything else in single quotes, so that it's not re-expanded. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/token-erc-721/chaincode-java/gradlew.bat b/token-erc-721/chaincode-java/gradlew.bat new file mode 100755 index 00000000..24467a14 --- /dev/null +++ b/token-erc-721/chaincode-java/gradlew.bat @@ -0,0 +1,100 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto init + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto init + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:init +@rem Get command-line arguments, handling Windows variants + +if not "%OS%" == "Windows_NT" goto win9xME_args + +:win9xME_args +@rem Slurp the command line arguments. +set CMD_LINE_ARGS= +set _SKIP=2 + +:win9xME_args_slurp +if "x%~1" == "x" goto execute + +set CMD_LINE_ARGS=%* + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/token-erc-721/chaincode-java/settings.gradle b/token-erc-721/chaincode-java/settings.gradle new file mode 100755 index 00000000..cb34e798 --- /dev/null +++ b/token-erc-721/chaincode-java/settings.gradle @@ -0,0 +1,5 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ + +rootProject.name = 'erc721' diff --git a/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ContractConstants.java b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ContractConstants.java new file mode 100644 index 00000000..64ccd38c --- /dev/null +++ b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ContractConstants.java @@ -0,0 +1,33 @@ +/* + * SPDX-License-Identifier: Apache-2.0 +*/ + +package org.hyperledger.fabric.samples.erc721; +/** + * + * @author Renjith + * @Desc ERC721 constants for KEYS ,EVENTS and MSP + * + */ +public enum ContractConstants { + + BALANCE("balance"), + NFT("nft"), + APPROVAL("approval"), + NAMEKEY("nameKey"), + SYMBOLKEY("symbolKey"), + APPROVE_FOR_ALL("ApproveForAll"), + TRANSFER("Transfer"), + MINTER_ORG_MSP("Org1MSP"); + + private final String prefix; + + ContractConstants(final String value) { + this.prefix = value; + } + + public String getValue() { + return prefix; + } + +} diff --git a/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ContractErrors.java b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ContractErrors.java new file mode 100644 index 00000000..b094a6bf --- /dev/null +++ b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ContractErrors.java @@ -0,0 +1,24 @@ + +/* + * SPDX-License-Identifier: Apache-2.0 +*/ +package org.hyperledger.fabric.samples.erc721; +/** + * @author Renjith + * + * @Desc ERC721 constants for exceptions. + * + */ + +public enum ContractErrors { + + + TOKEN_NOT_FOUND, + TOKEN_ALREADY_EXITS, + NO_OWNER_ASSIGNED, + UNOTHERIZED_SENDER, + TOKEN_NONOWNER, + INVALID_TOKEN_OWNER + + +} diff --git a/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ERC721TokenContract.java b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ERC721TokenContract.java new file mode 100644 index 00000000..0fce89fe --- /dev/null +++ b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/ERC721TokenContract.java @@ -0,0 +1,429 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ + +package org.hyperledger.fabric.samples.erc721; + +import static java.nio.charset.StandardCharsets.UTF_8; +import static org.hyperledger.fabric.samples.ertc721.utils.ContractUtility.stringIsNullOrEmpty; +import java.util.stream.StreamSupport; +import org.hyperledger.fabric.contract.Context; +import org.hyperledger.fabric.contract.ContractInterface; +import org.hyperledger.fabric.contract.annotation.Contact; +import org.hyperledger.fabric.contract.annotation.Contract; +import org.hyperledger.fabric.contract.annotation.Default; +import org.hyperledger.fabric.contract.annotation.Info; +import org.hyperledger.fabric.contract.annotation.License; +import org.hyperledger.fabric.contract.annotation.Transaction; +import org.hyperledger.fabric.samples.erc721.models.Approval; +import org.hyperledger.fabric.samples.erc721.models.NFT; +import org.hyperledger.fabric.samples.erc721.models.Transfer; +import org.hyperledger.fabric.shim.ChaincodeException; +import org.hyperledger.fabric.shim.ChaincodeStub; +import org.hyperledger.fabric.shim.ledger.CompositeKey; +import org.hyperledger.fabric.shim.ledger.KeyValue; +import org.hyperledger.fabric.shim.ledger.QueryResultsIterator; + +@Contract(name = "erc721token", info = @Info(title = "ERC721Token Contract", description = "The erc721 NFT implementation", version = "0.0.1-SNAPSHOT", license = @License(name = "Apache 2.0 License", url = "http://www.apache.org/licenses/LICENSE-2.0.html"), contact = @Contact(email = "renjith.narayanan@gmail.com", name = "Renjith Narayanan", url = "https://hyperledger.example.com"))) +@Default +public class ERC721TokenContract implements ContractInterface { + + /** + * BalanceOf counts all non-fungible tokens assigned to an owner. There is a key record for every + * non-fungible token in the format of balancePrefix.owner.tokenId. balanceOf() queries for and + * counts all records matching balancePrefix.owner.* + * + * @param ctx the transaction context + * @param owner An owner for whom to query the balance + * @return The number of non-fungible tokens owned by the owner, possibly zero + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public long balanceOf(final Context ctx, final String owner) { + ChaincodeStub stub = ctx.getStub(); + CompositeKey balanceKey = stub.createCompositeKey(ContractConstants.BALANCE.getValue(), owner); + QueryResultsIterator results = stub.getStateByPartialCompositeKey(balanceKey); + return StreamSupport.stream(results.spliterator(), false).count(); + + } + + /** + * Finds the owner of a non-fungible token. + * + * @param ctx the transaction context + * @param tokenId the identifier for a non-fungible token. + * @return return the owner of the non-fungible token. + */ + + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String ownerOf(final Context ctx, final String tokenId) { + + final NFT nft = this.readNft(ctx, tokenId); + if (stringIsNullOrEmpty(nft.getOwner())) { + final String errorMessage = String.format("No owner is assigned o the token %s", tokenId); + throw new ChaincodeException(errorMessage, ContractErrors.NO_OWNER_ASSIGNED.toString()); + } + return nft.getOwner(); + + } + + /** + * It returns if a client is an authorized operator for another client. + * + * @param ctx the transaction context + * @param owner The client that owns the non-fungible tokens + * @param operator The client that acts on behalf of the owner + * @return Return true if the operator is an approved operator for the owner, false otherwise + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public boolean isApprovedForAll(final Context ctx, final String owner, final String operator) { + ChaincodeStub stub = ctx.getStub(); + CompositeKey approvalKey = stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), owner, + operator); + final String approvalJson = stub.getStringState(approvalKey.toString()); + if (stringIsNullOrEmpty(approvalJson)) { + + return false; + + } else { + + final Approval approval = Approval.fromJSONString(approvalJson); + return approval.isApproved(); + + } + + } + + /** + * Approve changes or reaffirms the approved client for a non-fungible token. The function update + * the approved operator of the non-fungible token. + * + * @param ctx the transaction context + * @param operator: operator The new approved client + * @param tokenId: tokenId the non-fungible token to approve + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public void approve(final Context ctx, final String operator, final String tokenId) { + ChaincodeStub stub = ctx.getStub(); + final String sender = ctx.getClientIdentity().getId(); + NFT nft = this.readNft(ctx, tokenId); + String owner = nft.getOwner(); + boolean operatorApproval = this.isApprovedForAll(ctx, owner, sender); + if ((!owner.equalsIgnoreCase(sender)) && (!operatorApproval)) { + final String errorMessage = String.format( + "The sender %s is not the current owner nor an authorized operator of the token %s.", + sender, tokenId); + throw new ChaincodeException(errorMessage, ContractErrors.UNOTHERIZED_SENDER.toString()); + } + + nft.setApproved(operator); + CompositeKey nftKey = stub.createCompositeKey(ContractConstants.NFT.getValue(), tokenId); + stub.putStringState(nftKey.toString(), nft.toJSONString()); + } + + /** + * Enables or disables approval for a third party ("operator") to manage all the message sender's + * assets. + * + * @param ctx the transaction context + * @param operator A client to add to the set of authorized operators + * @param approved: True if the operator is approved, false to revoke approval + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public void setApprovalForAll(final Context ctx, final String operator, final boolean approved) { + final String sender = ctx.getClientIdentity().getId(); + ChaincodeStub stub = ctx.getStub(); + final Approval nftApproval = new Approval(sender, operator, approved); + CompositeKey approvalKey = stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), sender, + operator); + stub.putStringState(approvalKey.toString(), nftApproval.toJSONString()); + stub.setEvent(ContractConstants.APPROVE_FOR_ALL.getValue(), + nftApproval.toJSONString().getBytes(UTF_8)); + + } + + /** + * Get the approved client for a single non-fungible token. + * + * @param ctx the transaction context + * @param tokenId The non-fungible token to find the approved client for + * @return Return The approved client for this non-fungible token, or null if there is none + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String getApproved(final Context ctx, final String tokenId) { + NFT nft = this.readNft(ctx, tokenId); + return nft.getApproved(); + } + + /** + * Transfers the ownership of a non-fungible token from one owner to another owner. + * + * @param ctx the transaction context + * @param from the current owner of the non-fungible token + * @param to the new token owner + * @param tokenId The non-fungible token to transfer + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public void transferFrom(final Context ctx, final String from, final String to, + final String tokenId) { + String sender = ctx.getClientIdentity().getId(); + ChaincodeStub stub = ctx.getStub(); + NFT nft = this.readNft(ctx, tokenId); + final String owner = nft.getOwner(); + final String operator = nft.getApproved(); + boolean operatorApproval = this.isApprovedForAll(ctx, owner, sender); + if ((!owner.equalsIgnoreCase(sender)) && !operator.equalsIgnoreCase(sender) + && !operatorApproval) { + final String errorMessage = String.format( + "The sender %s is not the current owner nor an authorized operator of the token %s.", + sender, tokenId); + throw new ChaincodeException(errorMessage, ContractErrors.UNOTHERIZED_SENDER.toString()); + } + + // Check if `from` is the current owner + if (!owner.equalsIgnoreCase(from)) { + throw new ChaincodeException( + String.format("The from %s is not the current owner of the token %s.", from, tokenId), + ContractErrors.INVALID_TOKEN_OWNER.toString()); + } + + // Clear the approved client for this non-fungible token + nft.setApproved(""); + + // Overwrite a non-fungible token to assign a new owner. + + nft.setOwner(to); + CompositeKey nftKey = stub.createCompositeKey(ContractConstants.NFT.getValue(), tokenId); + stub.putStringState(nftKey.toString(), nft.toJSONString()); + + // Remove a composite key from the balance of the current owner + + CompositeKey balanceKeyFrom = stub.createCompositeKey(ContractConstants.BALANCE.getValue(), from, + tokenId); + stub.delState(balanceKeyFrom.toString()); + + // Save a composite key to count the balance of a new owner + + CompositeKey balanceKeyTo = stub.createCompositeKey(ContractConstants.BALANCE.getValue(), to, + tokenId); + stub.putState(balanceKeyTo.toString(), Character.toString(Character.MIN_VALUE).getBytes(UTF_8)); + + // Emit the Transfer event + final Transfer transferEvent = new Transfer(from, to, tokenId); + stub.setEvent(ContractConstants.TRANSFER.getValue(), + transferEvent.toJSONString().getBytes(UTF_8)); + + } + + // ============== ERC721 metadata extension =============== + + /** + * Returns a descriptive name for a collection of non-fungible tokens in this contract + * + * @param ctx the transaction context + * @return name of the token. + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String getName(final Context ctx) { + + return ctx.getStub().getStringState(ContractConstants.NAMEKEY.getValue()); + + } + + /** + * Returns an abbreviated name for non-fungible tokens in this contract. + * + * @param ctx the transaction context + * @return token symbol. + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String getSymbol(final Context ctx) { + + return ctx.getStub().getStringState(ContractConstants.SYMBOLKEY.getValue()); + } + + /** + * Return a distinct Uniform Resource Identifier (URI) for a given token. + * + * @param ctx the transaction context + * @param tokenId the identifier for a non-fungible token + * @return : Returns the URI of the token + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String getTokenURI(final Context ctx, final String tokenId) { + final NFT nft = this.readNft(ctx, tokenId); + return nft.getTokenURI(); + } + + /** ============= ERC721 enumeration extension =============== **/ + + /** + * Counts non-fungible tokens tracked by this contract. There is a key record for every + * non-fungible token in the format of nftPrefix.tokenId. The function queries for and counts all + * records matching nftPrefix.* + * + * @param ctx the transaction context + * @return count of valid non-fungible tokens tracked by this contract,where each one of them has + * an assigned and queryable owner. + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public long totalSupply(final Context ctx) { + ChaincodeStub stub = ctx.getStub(); + CompositeKey nftKey = stub.createCompositeKey(ContractConstants.NFT.getValue()); + QueryResultsIterator iterator = stub.getStateByPartialCompositeKey(nftKey); + return StreamSupport.stream(iterator.spliterator(), false).count(); + + } + + /** ============== Extended Functions for this sample =============== **/ + + /** + * Set optional information for a token. + * + * @param ctx the transaction context + * @param name The name of the token + * @param symbol The symbol of the token + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public void setOption(final Context ctx, final String name, final String symbol) { + String clientMSPID = ctx.getClientIdentity().getMSPID(); + // Check minter authorization - this sample assumes Org1 is the issuer with privilege to set the + // name and symbol + if (!clientMSPID.equalsIgnoreCase(ContractConstants.MINTER_ORG_MSP.getValue())) { + throw new ChaincodeException( + "Client is not authorized to set the name and symbol of the token"); + } + ChaincodeStub stub = ctx.getStub(); + stub.putStringState(ContractConstants.NAMEKEY.getValue(), name); + + stub.putStringState(ContractConstants.SYMBOLKEY.getValue(), symbol); + + } + + /** + * Mint a new non-fungible token + * + * @param ctx the transaction context + * @param tokenId Unique ID of the non-fungible token to be minted + * @param tokenURI URI containing metadata of the minted non-fungible token + * @return Return the non-fungible token object + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public NFT mintWithTokenURI(final Context ctx, final String tokenId, final String tokenURI) { + + final String clientMSPID = ctx.getClientIdentity().getMSPID(); + ChaincodeStub stub = ctx.getStub(); + + if (!clientMSPID.equalsIgnoreCase(ContractConstants.MINTER_ORG_MSP.getValue())) { // Check minter authorization - this sample assumes Org1 is the issuer with privilege to mint a new token + throw new ChaincodeException( + "Client is not authorized to set the name and symbol of the token", + ContractErrors.UNOTHERIZED_SENDER.toString()); + } + final String minter = ctx.getClientIdentity().getId(); + boolean exists = this.isNftExists(ctx, tokenId); + if (exists) { + throw new ChaincodeException(String.format("The token %s is already minted.", tokenId), + ContractErrors.TOKEN_ALREADY_EXITS.toString()); + } + + NFT nft = new NFT(tokenId, minter, tokenURI, ""); + CompositeKey nftKey = stub.createCompositeKey(ContractConstants.NFT.getValue(), tokenId); + stub.putStringState(nftKey.toString(), nft.toJSONString()); + + // A composite key would be balancePrefix.owner.tokenId, which enables partial + // composite key query to find and count all records matching balance.owner.* + // An empty value would represent a delete, so we simply insert the null character. + CompositeKey balanceKey = stub.createCompositeKey(ContractConstants.BALANCE.getValue(), minter, + tokenId); + stub.putStringState(balanceKey.toString(), Character.toString(Character.MIN_VALUE)); + Transfer transferEvent = new Transfer("0x0", minter, tokenId); + stub.setEvent(ContractConstants.TRANSFER.getValue(), + transferEvent.toJSONString().getBytes(UTF_8)); + return nft; + } + + /** + * Burn a non-fungible token + * + * @param ctx the transaction context + * @param tokenId Unique ID of a non-fungible token + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public void burn(final Context ctx, final String tokenId) { + ChaincodeStub stub = ctx.getStub(); + String owner = ctx.getClientIdentity().getId(); + // Check if a caller is the owner of the non-fungible token + NFT nft = this.readNft(ctx, tokenId); + if (!nft.getOwner().equalsIgnoreCase(owner)) { + throw new ChaincodeException( + String.format("Non-fungible token %s is not owned by %s", tokenId, owner), + ContractErrors.TOKEN_NONOWNER.toString()); + } + // Delete the token + CompositeKey nftKey = stub.createCompositeKey(ContractConstants.NFT.getValue(), tokenId); + stub.delState(nftKey.toString()); + + // Remove a composite key from the balance of the owner + CompositeKey balanceKey = stub.createCompositeKey(ContractConstants.BALANCE.getValue(), owner, + tokenId); + stub.delState(balanceKey.toString()); + Transfer transferEvent = new Transfer(owner, "0x0", tokenId); + stub.setEvent(ContractConstants.TRANSFER.getValue(), transferEvent.toJSONString().getBytes(UTF_8)); + } + + /** + * Returns the balance of the requesting client's account. + * + * @param ctx the transaction context + * @return the account balance + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public long getClientAccountBalance(final Context ctx) { + return this.balanceOf(ctx, ctx.getClientIdentity().getId()); + } + + /** + * Returns the id of the requesting client's account.In this implementation, the client account ID + * is the clientId itself. Users can use this function to get their own account id, which they can + * then give to others as the payment address. + * + *@param ctx the transaction context + * @return sender account id . + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String getClientAccountId(final Context ctx) { + return ctx.getClientIdentity().getId(); + } + + /** + * Get the the NFT details by token id. + * + * @param ctx the transaction context + * @param tokenId Unique ID of a non-fungible token + * @return token details. + */ + private NFT readNft(final Context ctx, final String tokenId) { + ChaincodeStub stub = ctx.getStub(); + CompositeKey nftKey = stub.createCompositeKey(ContractConstants.NFT.getValue(), tokenId); + String nft = stub.getStringState(nftKey.toString()); + if (stringIsNullOrEmpty(nft)) { + final String errorMessage = String.format("Token with id %s not found!.", tokenId); + throw new ChaincodeException(errorMessage, ContractErrors.TOKEN_NOT_FOUND.toString()); + } + return NFT.fromJSONString(nft); + } + + /** + * Check NFT exits. + * + * @param ctx the transaction context + * @param tokenId Unique ID of a non-fungible token + * @return true if token exits else false. + */ + private boolean isNftExists(final Context ctx, final String tokenId) { + ChaincodeStub stub = ctx.getStub(); + CompositeKey nftKey = stub.createCompositeKey(ContractConstants.NFT.getValue(), tokenId); + String nft = stub.getStringState(nftKey.toString()); + return ((stringIsNullOrEmpty(nft)) ? false : true); + } + +} diff --git a/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/Approval.java b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/Approval.java new file mode 100644 index 00000000..c6150ef8 --- /dev/null +++ b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/Approval.java @@ -0,0 +1,131 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ +package org.hyperledger.fabric.samples.erc721.models; + +import static java.nio.charset.StandardCharsets.UTF_8; + +import org.hyperledger.fabric.contract.annotation.DataType; +import org.hyperledger.fabric.contract.annotation.Property; +import org.json.JSONObject; + +import com.owlike.genson.Genson; +import com.owlike.genson.annotation.JsonProperty; + +@DataType() +public final class Approval { + + @Property() + @JsonProperty("owner") + private String owner; + + @Property() + @JsonProperty("operator") + private String operator; + + @Property() + @JsonProperty("approved") + private boolean approved; + + + /** + * Default constructor + */ + public Approval() { + super(); + + } + /** + * Constructor of the class + * @param owner + * @param operator + * @param approved + */ + public Approval(@JsonProperty("owner") final String owner, + @JsonProperty("operator") final String operator, + @JsonProperty("approved") final boolean approved) { + super(); + this.owner = owner; + this.operator = operator; + this.approved = approved; + } + + /** + * + * @return + */ + public String getOwner() { + return owner; + } + + public void setOwner(final String owner) { + this.owner = owner; + } + + /** + * + * @return + */ + + public String getOperator() { + return operator; + } + + /** + * + * @param operator + */ + public void setOperator(final String operator) { + this.operator = operator; + } + + /** + * + * @return + */ + public boolean isApproved() { + return approved; + } + + /** + * + * @param approved + */ + public void setApproved(final boolean approved) { + this.approved = approved; + } + + /** + * + * @return JSON String of the Approval object. + */ + public String toJSONString() { + + return new Genson().serialize(this).toString(); + } + + /** + * + * @param data + * @return + */ + public static Approval fromJSONString(final String data) { + JSONObject json = new JSONObject(data); + Approval approver = new Approval(json.getString("owner"), json.getString("operator"), + new Boolean(json.getBoolean("approved"))); + + return approver; + } + + /** + * Constructs new Approval from JSON String. + * + * @param json Approval format. + * @return + */ + public static Approval fromBytes(final byte[] bytes) { + return new Genson().deserialize(new String(bytes, UTF_8), Approval.class); + + } + +} diff --git a/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/NFT.java b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/NFT.java new file mode 100644 index 00000000..f0447a86 --- /dev/null +++ b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/NFT.java @@ -0,0 +1,154 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ +package org.hyperledger.fabric.samples.erc721.models; + +import java.io.Serializable; + +import org.hyperledger.fabric.contract.annotation.DataType; +import org.hyperledger.fabric.contract.annotation.Property; +import org.json.JSONObject; + +import com.owlike.genson.Genson; +import com.owlike.genson.annotation.JsonProperty; + +@DataType() +public final class NFT implements Serializable { + + /** + * + */ + private static final long serialVersionUID = -29439695319757532L; + + @Property() + @JsonProperty("tokenId") + private String tokenId; + + @Property() + @JsonProperty("owner") + private String owner; + + @Property() + @JsonProperty("tokenURI") + private String tokenURI; + + @Property() + @JsonProperty("approved") + private String approved; + + /** + * Default constructor + */ + public NFT() { + super(); + + } + + /** + * Constructor of the class + * + * @param tokenId + * @param owner + * @param tokenURI + * @param approved + */ + public NFT(@JsonProperty("tokenId") final String tokenId, + @JsonProperty("owner") final String owner, @JsonProperty("tokenURI") final String tokenURI, + @JsonProperty("approved") final String approved) { + super(); + this.tokenId = tokenId; + this.owner = owner; + this.tokenURI = tokenURI; + this.approved = approved; + } + + /** + * + * @return + */ + public String getTokenId() { + return tokenId; + } + + /** + * + * @param tokenId + */ + + public void setTokenId(final String tokenId) { + this.tokenId = tokenId; + } + + /** + * + * @return + */ + + public String getOwner() { + return owner; + } + + /** + * + * @param owner + */ + public void setOwner(final String owner) { + this.owner = owner; + } + + /** + * + * @return + */ + public String getTokenURI() { + return tokenURI; + } + + /** + * + * @param tokenURI + */ + public void setTokenURI(final String tokenURI) { + this.tokenURI = tokenURI; + } + + /** + * + * @return + */ + public String getApproved() { + return approved; + } + + /** + * + * @param approved + */ + public void setApproved(final String approved) { + this.approved = approved; + } + + /** + * @return String JSON + */ + public String toJSONString() { + + return new Genson().serialize(this).toString(); + } + + /** + * Convert JSON string to NFT object. + * + * @param data JSON string. + * @return NFT object + */ + + public static NFT fromJSONString(final String data) { + JSONObject json = new JSONObject(data); + NFT nft = new NFT(json.getString("tokenId"), json.getString("owner"), + json.getString("tokenURI"), json.getString("approved")); + + return nft; + } + +} diff --git a/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/Transfer.java b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/Transfer.java new file mode 100644 index 00000000..8ff2683a --- /dev/null +++ b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/erc721/models/Transfer.java @@ -0,0 +1,109 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ +package org.hyperledger.fabric.samples.erc721.models; + +import static java.nio.charset.StandardCharsets.UTF_8; + +import org.hyperledger.fabric.contract.annotation.DataType; +import org.hyperledger.fabric.contract.annotation.Property; + +import com.owlike.genson.Genson; +import com.owlike.genson.annotation.JsonProperty; + +@DataType() +public final class Transfer { + + @Property() + @JsonProperty("from") + private String from; + + @Property() + @JsonProperty("to") + private String to; + + @Property() + @JsonProperty("tokenId") + private String tokenId; + + /** + * Constructor of the class. + * + * @param from + * @param to + * @param tokenId + */ + + public Transfer(@JsonProperty("fom") final String from, @JsonProperty("to") final String to, + @JsonProperty("tokenId") final String tokenId) { + super(); + this.from = from; + this.to = to; + this.tokenId = tokenId; + } + + /** + * Default Constructor of the class. + */ + public Transfer() { + super(); + + } + + public String getFrom() { + return from; + } + + public void setFrom(final String from) { + this.from = from; + } + + public String getTo() { + return to; + } + + /** + * + * @param to + */ + + public void setTo(final String to) { + this.to = to; + } + + /** + * + * @return + */ + public String getTokenId() { + return tokenId; + } + + /** + * + * @param tokenId + */ + + public void setTokenId(final String tokenId) { + this.tokenId = tokenId; + } + + /** + * @return String JSON + */ + public String toJSONString() { + + return new Genson().serialize(this).toString(); + } + + /** + * Constructs new Approval from JSON String. + * + * @param json Approval format. + * @return + */ + public static Transfer fromBytes(final byte[] bytes) { + return new Genson().deserialize(new String(bytes, UTF_8), Transfer.class); + + } +} diff --git a/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/ertc721/utils/ContractUtility.java b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/ertc721/utils/ContractUtility.java new file mode 100644 index 00000000..4c708add --- /dev/null +++ b/token-erc-721/chaincode-java/src/main/java/org/hyperledger/fabric/samples/ertc721/utils/ContractUtility.java @@ -0,0 +1,21 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ +package org.hyperledger.fabric.samples.ertc721.utils; +/** + * + * @author Renjith + * @Desc Utility class + * + */ + +public final class ContractUtility { + + private ContractUtility() { + + } + public static boolean stringIsNullOrEmpty(final String string) { + return string == null || string.isEmpty(); + } + +} diff --git a/token-erc-721/chaincode-java/src/test/java/org/hyperledger/fabric/samples/erc721/ERC721TokenContractTest.java b/token-erc-721/chaincode-java/src/test/java/org/hyperledger/fabric/samples/erc721/ERC721TokenContractTest.java new file mode 100644 index 00000000..0406325f --- /dev/null +++ b/token-erc-721/chaincode-java/src/test/java/org/hyperledger/fabric/samples/erc721/ERC721TokenContractTest.java @@ -0,0 +1,518 @@ +package org.hyperledger.fabric.samples.erc721; + +import static org.assertj.core.api.Assertions.assertThat; +import static org.assertj.core.api.Assertions.catchThrowable; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.verify; +import static org.mockito.Mockito.when; + +import java.io.IOException; +import java.security.cert.CertificateException; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +import org.hyperledger.fabric.contract.ClientIdentity; +import org.hyperledger.fabric.contract.Context; +import org.hyperledger.fabric.samples.erc721.models.Approval; +import org.hyperledger.fabric.samples.erc721.models.NFT; +import org.hyperledger.fabric.shim.ChaincodeException; +import org.hyperledger.fabric.shim.ChaincodeStub; +import org.hyperledger.fabric.shim.ledger.CompositeKey; +import org.hyperledger.fabric.shim.ledger.KeyValue; +import org.hyperledger.fabric.shim.ledger.QueryResultsIterator; +import org.json.JSONException; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Nested; +import org.junit.jupiter.api.Test; + +public class ERC721TokenContractTest { + + private final class MockKeyValue implements KeyValue { + + private final String key; + private final String value; + + MockKeyValue(final String key, final String value) { + super(); + this.key = key; + this.value = value; + } + + @Override + public String getKey() { + return this.key; + } + + @Override + public String getStringValue() { + return this.value; + } + + @Override + public byte[] getValue() { + return this.value.getBytes(); + } + + } + + private final class MockAssetResultsIterator implements QueryResultsIterator { + + private final List assetList; + + MockAssetResultsIterator(final List list) { + super(); + this.assetList = list; + } + + @Override + public Iterator iterator() { + return assetList.iterator(); + } + + @Override + public void close() throws Exception { + // do nothing + } + + } + + @Nested + class InvokeERC721TokenBalanceOf { + + @Test + public void invokeToGetTokenBalance() { + ERC721TokenContract contract = new ERC721TokenContract(); + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + List list = new ArrayList<>(); + list.add(new MockKeyValue("balance_Alice_101", "\u0000")); + list.add(new MockKeyValue("balance_Alice_101", "\u0000")); + when(ctx.getStub()).thenReturn(stub); + CompositeKey balanceKey = stub.createCompositeKey(ContractConstants.BALANCE.getValue(), + "Alice"); + when(stub.getStateByPartialCompositeKey(balanceKey)) + .thenReturn(new MockAssetResultsIterator(list)); + long balance = contract.balanceOf(ctx, "Alice"); + assertThat(balance).isEqualTo(2); + + } + + @Test + public void invokeToGetOwnerOf() { + ERC721TokenContract contract = new ERC721TokenContract(); + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + NFT nft = new NFT("101", "Alicd", "http://test.com", ""); + when(ctx.getStub()).thenReturn(stub); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(nft.toJSONString()); + String owner = contract.ownerOf(ctx, "101"); + assertThat(owner).isEqualTo(nft.getOwner()); + + } + + } + + @Nested + class ERC721TransferFromFunctionTest { + + private Context ctx = null; + private ChaincodeStub stub = null; + private ERC721TokenContract contract = null; + private NFT currentNFT = null; + private NFT updatedNFT = null; + + @BeforeEach + public void initialize() { + + this.currentNFT = new NFT("101", "Alice", "http://test.com", "Charlie"); + this.updatedNFT = new NFT("101", "Bob", "http://test.com", ""); + this.ctx = mock(Context.class); + this.stub = mock(ChaincodeStub.class); + when(this.ctx.getStub()).thenReturn(stub); + contract = new ERC721TokenContract(); + CompositeKey ck1 = mock(CompositeKey.class); + when(ck1.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(this.stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck1); + when(stub.getStringState(ck1.toString())).thenReturn(currentNFT.toJSONString()); + CompositeKey ck2 = mock(CompositeKey.class); + when(ck2.toString()).thenReturn(ContractConstants.BALANCE.getValue() + "Alice" + "101"); + when(stub.createCompositeKey(ContractConstants.BALANCE.getValue(), "Alice", "101")) + .thenReturn(ck2); + + CompositeKey ck3 = mock(CompositeKey.class); + when(ck3.toString()).thenReturn(ContractConstants.BALANCE.getValue() + "Bob" + "101"); + when(stub.createCompositeKey(ContractConstants.BALANCE.getValue(), "Bob", "101")) + .thenReturn(ck3); + + } + + @Test + public void whenSenderIsCurrentTokenOwner() + throws CertificateException, JSONException, IOException { + Approval approval = new Approval("Alice", "Alice", false); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Alice"); + when(this.stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Alice")) + .thenReturn(ck); + when(this.stub.getStringState(ck.toString())).thenReturn(approval.toJSONString()); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ci.getId()).thenReturn("Alice"); + when(this.ctx.getClientIdentity()).thenReturn(ci); + contract.transferFrom(this.ctx, "Alice", "Bob", "101"); + verify(stub).putStringState(ContractConstants.NFT.getValue() + "101", + this.updatedNFT.toJSONString()); + + } + + @Test + public void whenSenderisApprovedClientOfToken() + throws CertificateException, JSONException, IOException { + Approval approval = new Approval("Alice", "Charlie", false); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Charlie"); + when(this.stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Charlie")) + .thenReturn(ck); + when(this.stub.getStringState(ck.toString())).thenReturn(approval.toJSONString()); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ci.getId()).thenReturn("Charlie"); + when(this.ctx.getClientIdentity()).thenReturn(ci); + + contract.transferFrom(this.ctx, "Alice", "Bob", "101"); + + verify(stub).putStringState(ContractConstants.NFT.getValue() + "101", + this.updatedNFT.toJSONString()); + + } + + @Test + public void whenSenderisAuthorizedOperatorOfToken() + throws CertificateException, JSONException, IOException { + Approval approval = new Approval("Alice", "Dave", true); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Dave"); + when(this.stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Dave")) + .thenReturn(ck); + when(this.stub.getStringState(ck.toString())).thenReturn(approval.toJSONString()); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ci.getId()).thenReturn("Dave"); + when(this.ctx.getClientIdentity()).thenReturn(ci); + contract.transferFrom(this.ctx, "Alice", "Bob", "101"); + verify(stub).putStringState(ContractConstants.NFT.getValue() + "101", + this.updatedNFT.toJSONString()); + + } + + @Test + public void whenSenderIsInvalid() throws CertificateException, JSONException, IOException { + Approval approval = new Approval("Alice", "Alice", false); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Dev"); + when(this.stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Dev")) + .thenReturn(ck); + when(this.stub.getStringState(ck.toString())).thenReturn(approval.toJSONString()); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ci.getId()).thenReturn("Dev"); + when(this.ctx.getClientIdentity()).thenReturn(ci); + Throwable thrown = catchThrowable(() -> { + contract.transferFrom(this.ctx, "Alice", "Bob", "101"); + }); + String message = String.format( + "The sender %s is not the current owner nor an authorized operator of the token %s.", + "Dev", "101"); + assertThat(thrown).isInstanceOf(ChaincodeException.class).hasMessage(message); + + } + + @Test + public void whenCurrentOwnerDoesNotMatch() + throws CertificateException, JSONException, IOException { + + Approval approval = new Approval("Alice", "Alice", false); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Alice"); + when(this.stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Alice")) + .thenReturn(ck); + when(this.stub.getStringState(ck.toString())).thenReturn(approval.toJSONString()); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ci.getId()).thenReturn("Alice"); + when(this.ctx.getClientIdentity()).thenReturn(ci); + Throwable thrown = catchThrowable(() -> { + contract.transferFrom(this.ctx, "Charlie", "Bob", "101"); + }); + System.out.println(thrown); + assertThat(thrown).isInstanceOf(ChaincodeException.class) + .hasMessage("The from Charlie is not the current owner of the token 101."); + + } + + } + + @Nested + class ERC721ApproveFunctionalitiesTest { + + @Test + public void invokeAprrove() throws CertificateException, JSONException, IOException { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + NFT nft = new NFT("101", "Alice", "http://test.com", ""); + when(ctx.getStub()).thenReturn(stub); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(nft.toJSONString()); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ci.getId()).thenReturn("Alice"); + when(ctx.getClientIdentity()).thenReturn(ci); + CompositeKey ck1 = mock(CompositeKey.class); + when(ck1.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Alice"); + when(stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Alice")) + .thenReturn(ck1); + ERC721TokenContract contract = new ERC721TokenContract(); + + contract.approve(ctx, "Bob", "101"); + + verify(stub).putStringState(ContractConstants.NFT.getValue() + "101", + new NFT("101", "Alice", "http://test.com", "Bob").toJSONString()); + + } + + @Test + public void invokeSetApproveForAll() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ctx.getClientIdentity()).thenReturn(ci); + when(ci.getId()).thenReturn("Alice"); + + CompositeKey ck1 = mock(CompositeKey.class); + when(stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Bob")) + .thenReturn(ck1); + when(ck1.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Bob"); + ERC721TokenContract contract = new ERC721TokenContract(); + NFT nft = new NFT("101", "Alice", "http://test.com", ""); + + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(nft.toJSONString()); + contract.setApprovalForAll(ctx, "Bob", true); + + verify(stub).putStringState(ck1.toString(), + new Approval("Alice", "Bob", true).toJSONString()); + + } + + @Test + public void invokeGetApproved() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ctx.getClientIdentity()).thenReturn(ci); + when(ci.getId()).thenReturn("Alice"); + + ERC721TokenContract contract = new ERC721TokenContract(); + NFT nft = new NFT("101", "Alice", "http://test.com", "Bob"); + + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(nft.toJSONString()); + String approved = contract.getApproved(ctx, "101"); + assertThat(approved).isEqualTo("Bob"); + + } + + @Test + public void invokeIsApprovedForAll() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ctx.getClientIdentity()).thenReturn(ci); + when(ci.getId()).thenReturn("Alice"); + ERC721TokenContract contract = new ERC721TokenContract(); + Approval approval = new Approval("Alice", "Bob", true); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.APPROVAL.getValue() + "Alice" + "Bob"); + when(stub.createCompositeKey(ContractConstants.APPROVAL.getValue(), "Alice", "Bob")) + .thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(approval.toJSONString()); + + boolean response = contract.isApprovedForAll(ctx, "Alice", "Bob"); + assertThat(response).isEqualTo(true); + } + + } + + @Nested + class ERC721OptionsTest { + + @Test + public void invokeGetName() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + when(stub.getStringState(ContractConstants.NAMEKEY.getValue())).thenReturn("AmadoueNFT"); + ERC721TokenContract contract = new ERC721TokenContract(); + String name = contract.getName(ctx); + assertThat(name).isEqualTo("AmadoueNFT"); + + } + + @Test + public void invokeGetSysmbol() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + when(stub.getStringState(ContractConstants.NAMEKEY.getValue())).thenReturn("ANFT"); + ERC721TokenContract contract = new ERC721TokenContract(); + String name = contract.getName(ctx); + assertThat(name).isEqualTo("ANFT"); + + } + + @Test + public void invokeTokenURI() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + ERC721TokenContract contract = new ERC721TokenContract(); + NFT nft = new NFT("101", "Alice", "http://test.com", "Bob"); + + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(nft.toJSONString()); + String response = contract.getTokenURI(ctx, "101"); + assertThat(response).isEqualTo("http://test.com"); + + } + + @Test + public void getTokenTotalSupply() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + List list = new ArrayList<>(); + list.add(new MockKeyValue("101", + new NFT("101", "Alice", "http://test.com", "Bob").toJSONString())); + list.add(new MockKeyValue("balance_Alice_101", + new NFT("102", "Alice", "http://test.com", "Bob").toJSONString())); + + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue()); + when(stub.createCompositeKey(ContractConstants.NFT.getValue())).thenReturn(ck); + + when(stub.getStateByPartialCompositeKey(ck)).thenReturn(new MockAssetResultsIterator(list)); + ERC721TokenContract contract = new ERC721TokenContract(); + + long total = contract.totalSupply(ctx); + assertThat(total).isEqualTo(2L); + + } + + } + + @Nested + class ERC721MintFunctionTest { + + @Test + public void whenInvokeMintForNewToken() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + NFT nft = new NFT("101", "Alice", "DummyURI", ""); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(null); + + CompositeKey ck2 = mock(CompositeKey.class); + when(ck2.toString()).thenReturn(ContractConstants.BALANCE.getValue() + "Alice" + "101"); + when(stub.createCompositeKey(ContractConstants.BALANCE.getValue(), "Alice", "101")) + .thenReturn(ck2); + + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ctx.getClientIdentity()).thenReturn(ci); + when(ci.getMSPID()).thenReturn("Org1MSP"); + when(ci.getId()).thenReturn("Alice"); + ERC721TokenContract contract = new ERC721TokenContract(); + NFT response = contract.mintWithTokenURI(ctx, "101", "DummyURI"); + + verify(stub).putStringState(ck.toString(), nft.toJSONString()); + verify(stub).putStringState(ck2.toString(), "\u0000"); + assertThat(response.toJSONString()).isEqualTo(nft.toJSONString()); + + } + + @Test + public void whenInvokeMintForAlreadyExistingToken() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + NFT nft = new NFT("101", "Alice", "DummyURI", ""); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(nft.toJSONString()); + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ctx.getClientIdentity()).thenReturn(ci); + when(ci.getMSPID()).thenReturn("Org1MSP"); + when(ci.getId()).thenReturn("Alice"); + ERC721TokenContract contract = new ERC721TokenContract(); + Throwable thrown = catchThrowable(() -> { + contract.mintWithTokenURI(ctx, "101", "DummyURI"); + }); + assertThat(thrown).isInstanceOf(ChaincodeException.class) + .hasMessage("The token 101 is already minted."); + + } + + @Test + public void whenInvokeBurnToken() { + Context ctx = mock(Context.class); + ChaincodeStub stub = mock(ChaincodeStub.class); + when(ctx.getStub()).thenReturn(stub); + NFT nft = new NFT("101", "Alice", "DummyURI", ""); + CompositeKey ck = mock(CompositeKey.class); + when(ck.toString()).thenReturn(ContractConstants.NFT.getValue() + "101"); + when(stub.createCompositeKey(ContractConstants.NFT.getValue(), "101")).thenReturn(ck); + when(stub.getStringState(ck.toString())).thenReturn(nft.toJSONString()); + CompositeKey ck2 = mock(CompositeKey.class); + when(ck2.toString()).thenReturn(ContractConstants.BALANCE.getValue() + "Alice" + "101"); + when(stub.createCompositeKey(ContractConstants.BALANCE.getValue(), "Alice", "101")) + .thenReturn(ck2); + + ClientIdentity ci = null; + ci = mock(ClientIdentity.class); + when(ctx.getClientIdentity()).thenReturn(ci); + when(ci.getMSPID()).thenReturn("Org1MSP"); + when(ci.getId()).thenReturn("Alice"); + ERC721TokenContract contract = new ERC721TokenContract(); + contract.burn(ctx, "101"); + + verify(stub).delState(ck.toString()); + verify(stub).delState(ck2.toString()); + + } + + } + +} diff --git a/token-erc-721/chaincode-java/src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker b/token-erc-721/chaincode-java/src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker new file mode 100644 index 00000000..ca6ee9ce --- /dev/null +++ b/token-erc-721/chaincode-java/src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker @@ -0,0 +1 @@ +mock-maker-inline \ No newline at end of file