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run_demo.py
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run_demo.py
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import os
import sys
import shlex
import subprocess
import argparse
import time
from shutil import copyfile, copytree, rmtree
NO_PROMPT = False
def prompt_key(prompt):
if NO_PROMPT:
print("\n" + prompt)
return
inp = False
while inp != "":
try:
inp = input("\n{} -- press any key to continue".format(prompt))
except Exception:
pass
def supply_chain():
prompt_key("Define supply chain layout (Alice)")
os.chdir("owner_alice")
create_layout_cmd = "python create_layout.py"
print(create_layout_cmd)
subprocess.call(shlex.split(create_layout_cmd))
prompt_key("Clone source code (Bob)")
os.chdir("../functionary_bob")
clone_cmd = ("in-toto-run"
" --verbose"
" --use-dsse"
" --step-name clone --products demo-project/foo.py"
" --signing-key bob -- git clone https://github.com/in-toto/demo-project.git")
print(clone_cmd)
subprocess.call(shlex.split(clone_cmd))
prompt_key("Update version number (Bob)")
update_version_start_cmd = ("in-toto-record"
" start"
" --verbose"
" --use-dsse"
" --step-name update-version"
" --signing-key bob"
" --materials demo-project/foo.py")
print(update_version_start_cmd)
subprocess.call(shlex.split(update_version_start_cmd))
update_version = "echo 'VERSION = \"foo-v1\"\n\nprint(\"Hello in-toto\")\n' > demo-project/foo.py"
print(update_version)
subprocess.call(update_version, shell=True)
update_version_stop_cmd = ("in-toto-record"
" stop"
" --verbose"
" --use-dsse"
" --step-name update-version"
" --signing-key bob"
" --products demo-project/foo.py")
print(update_version_stop_cmd)
subprocess.call(shlex.split(update_version_stop_cmd))
copytree("demo-project", "../functionary_carl/demo-project")
prompt_key("Package (Carl)")
os.chdir("../functionary_carl")
package_cmd = ("in-toto-run"
" --verbose"
" --use-dsse"
" --step-name package --materials demo-project/foo.py"
" --products demo-project.tar.gz"
" --signing-key carl --record-streams"
" -- tar --exclude '.git' -zcvf demo-project.tar.gz demo-project")
print(package_cmd)
subprocess.call(shlex.split(package_cmd))
prompt_key("Create final product")
os.chdir("..")
copyfile("owner_alice/root.layout", "final_product/root.layout")
copyfile("functionary_bob/clone.210dcc50.link", "final_product/clone.210dcc50.link")
copyfile("functionary_bob/update-version.210dcc50.link", "final_product/update-version.210dcc50.link")
copyfile("functionary_carl/package.be06db20.link", "final_product/package.be06db20.link")
copyfile("functionary_carl/demo-project.tar.gz", "final_product/demo-project.tar.gz")
prompt_key("Verify final product (client)")
os.chdir("final_product")
copyfile("../owner_alice/alice.pub", "alice.pub")
verify_cmd = ("in-toto-verify"
" --verbose"
" --layout root.layout"
" --verification-keys alice.pub")
print(verify_cmd)
retval = subprocess.call(shlex.split(verify_cmd))
print("Return value: " + str(retval))
prompt_key("Tampering with the supply chain")
os.chdir("../functionary_carl")
tamper_cmd = "echo 'something evil' >> demo-project/foo.py"
print(tamper_cmd)
subprocess.call(tamper_cmd, shell=True)
prompt_key("Package (Carl)")
package_cmd = ("in-toto-run"
" --verbose"
" --use-dsse"
" --step-name package --materials demo-project/foo.py"
" --products demo-project.tar.gz"
" --signing-key carl --record-streams"
" -- tar --exclude '.git' -zcvf demo-project.tar.gz demo-project")
print(package_cmd)
subprocess.call(shlex.split(package_cmd))
prompt_key("Create final product")
os.chdir("..")
copyfile("owner_alice/root.layout", "final_product/root.layout")
copyfile("functionary_bob/clone.210dcc50.link", "final_product/clone.210dcc50.link")
copyfile("functionary_bob/update-version.210dcc50.link", "final_product/update-version.210dcc50.link")
copyfile("functionary_carl/package.be06db20.link", "final_product/package.be06db20.link")
copyfile("functionary_carl/demo-project.tar.gz", "final_product/demo-project.tar.gz")
prompt_key("Verify final product (client)")
os.chdir("final_product")
copyfile("../owner_alice/alice.pub", "alice.pub")
verify_cmd = ("in-toto-verify"
" --verbose"
" --layout root.layout"
" --verification-keys alice.pub")
print(verify_cmd)
retval = subprocess.call(shlex.split(verify_cmd))
print("Return value: " + str(retval))
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-n", "--no-prompt", help="No prompt.",
action="store_true")
parser.add_argument("-c", "--clean", help="Remove files created during demo.",
action="store_true")
args = parser.parse_args()
if args.clean:
files_to_delete = [
"owner_alice/root.layout",
"functionary_bob/clone.210dcc50.link",
"functionary_bob/update-version.210dcc50.link",
"functionary_bob/demo-project",
"functionary_carl/package.be06db20.link",
"functionary_carl/demo-project.tar.gz",
"functionary_carl/demo-project",
"final_product/alice.pub",
"final_product/demo-project.tar.gz",
"final_product/package.be06db20.link",
"final_product/clone.210dcc50.link",
"final_product/update-version.210dcc50.link",
"final_product/untar.link",
"final_product/root.layout",
"final_product/demo-project",
]
for path in files_to_delete:
if os.path.isfile(path):
os.remove(path)
elif os.path.isdir(path):
rmtree(path)
sys.exit(0)
if args.no_prompt:
global NO_PROMPT
NO_PROMPT = True
supply_chain()
if __name__ == '__main__':
main()