mirror of
https://github.com/MacRimi/ProxMenux.git
synced 2026-11-01 10:22:08 +00:00
Merge pull request #458 from f3rs3n/fix/vm-iso-downloads
fix(vm): reject failed ISO downloads and repair image sources
This commit is contained in:
MacRimi
@@ -0,0 +1,275 @@
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"""The VM wizard must not accept failed ISO downloads as installation media.
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Run its function logic against a loopback HTTP fixture. Redirect the fixed
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native ISO directory only in the loaded test copy and stub Proxmox/UI services.
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No product script is sourced, no guest operation runs, and no public network
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or real ISO storage is accessed.
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"""
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from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
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import os
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from pathlib import Path
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import re
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import shlex
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import shutil
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import subprocess
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import tempfile
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import threading
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import unittest
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ROOT = Path(__file__).resolve().parents[3]
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CREATOR = ROOT / "scripts/vm/vm_creator.sh"
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PAYLOAD = b"fixture installation media\x00\x01\n"
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REAL_WGET = shutil.which("wget")
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class MediaHandler(BaseHTTPRequestHandler):
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def do_GET(self):
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if self.path == "/missing.iso":
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self.send_response(404)
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self.end_headers()
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return
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if self.path == "/partial.iso":
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self.send_response(200)
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self.send_header("Content-Length", "1024")
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self.end_headers()
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self.wfile.write(b"partial")
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self.close_connection = True
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return
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body = b"" if self.path == "/empty.iso" else PAYLOAD
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self.send_response(200)
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self.send_header("Content-Length", str(len(body)))
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self.send_header("Content-Disposition", 'attachment; filename="remote-name.iso"')
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self.end_headers()
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self.wfile.write(body)
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def log_message(self, format, *args):
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pass
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class VmIsoDownloadTests(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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if REAL_WGET is None:
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raise RuntimeError("These offline tests require wget, as the VM wizard does")
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cls.server = ThreadingHTTPServer(("127.0.0.1", 0), MediaHandler)
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cls.thread = threading.Thread(target=cls.server.serve_forever, daemon=True)
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cls.thread.start()
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cls.http = f"http://127.0.0.1:{cls.server.server_port}"
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@classmethod
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def tearDownClass(cls):
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cls.server.shutdown()
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cls.server.server_close()
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cls.thread.join()
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def setUp(self):
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self.temp = tempfile.TemporaryDirectory(prefix="vm-iso-download-")
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self.addCleanup(self.temp.cleanup)
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self.directory = Path(self.temp.name)
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self.iso = self.directory / "installation media.iso"
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self.qm_log = self.directory / "qm.log"
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self.wget_log = self.directory / "wget.log"
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self.bin = self.directory / "bin"
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self.bin.mkdir()
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# Route only the optional fixed VirtIO/SourceForge endpoints to our
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# fixture. Wget still performs the actual HTTP transfer and file I/O.
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assert REAL_WGET is not None
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wrapper = self.bin / "wget"
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wrapper.write_text(
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"#!/usr/bin/env bash\n"
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'printf "%s\\n" "$*" >> "$WGET_LOG"\n'
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'args=("$@")\n'
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'for i in "${!args[@]}"; do\n'
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' case "${args[$i]}" in\n'
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' https://fedorapeople.org/*) args[$i]="$VIRTIO_FIXTURE_URL";;\n'
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' https://sourceforge.net/*) args[$i]="$HTTP_FIXTURE/success.iso";;\n'
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' esac\n'
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' if [[ "${args[$i]}" == http://* || "${args[$i]}" == https://* ]]; then\n'
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' [[ "${args[$i]}" == "$HTTP_FIXTURE"/* ]] || exit 98\n'
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' fi\n'
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'done\n'
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'for i in "${!args[@]}"; do\n'
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' if [[ "${args[$i]}" == -O ]]; then\n'
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' case "${args[$((i+1))]}" in "$FIXTURE_DIR"/*) ;; *) exit 97;; esac\n'
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' fi\n'
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'done\n'
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f"exec {shlex.quote(REAL_WGET)} --no-config --no-proxy --tries=1 --timeout=1 "
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'"${args[@]}"\n'
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)
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wrapper.chmod(0o755)
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def run_wizard(self, route="/success.iso", windows=False, overwrite=True, url=None,
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caller_iso_dir=None):
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source = CREATOR.read_text()
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functions = "\n\n".join(re.findall(r"^function \w+\(\) \{\n.*?^\}", source, re.M | re.S))
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self.assertIn("function create_vm()", functions)
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# Only relocate this external filesystem anchor. Keep all predicates,
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# transfers and promotion logic unchanged, without a production hook.
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self.assertIn("/var/lib/vz/template/iso", functions)
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functions = functions.replace("/var/lib/vz/template/iso", "${FIXTURE_DIR}")
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prelude = r'''
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translate() { printf '%s' "$1"; }
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msg_ok() { printf 'OK:%s\n' "$*"; }
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msg_error() { printf 'ERROR:%s\n' "$*"; }
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msg_warn() { printf 'WARN:%s\n' "$*"; }
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msg_info() { :; }
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msg_success() { :; }
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qm() { printf '%q ' "$@" >> "$QM_LOG"; printf '\n' >> "$QM_LOG"; }
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pvesm() { printf 'Name Type Status\nfixture dir active\n'; }
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select_storage_target() { printf fixture; }
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# No next menu, start, or guest-facing process is launched.
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bash() { :; }
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whiptail() {
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if [[ " $* " == *' --yesno '* ]]; then
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return "$OVERWRITE_STATUS"
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fi
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if [[ ! -f "$DIALOG_ONCE" ]]; then
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: > "$DIALOG_ONCE"
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printf '1' >&2
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return 0
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fi
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return 1
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}
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IMPORT_DISKS=(); PASSTHROUGH_DISKS=(); VIRTUAL_DISKS=(); CONTROLLER_NVME_PCIS=()
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VMID=99999; HN=fixture; CORE_COUNT=1; RAM_SIZE=512; BRG=fixture
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MAC='02:00:00:00:00:01'; VLAN=''; MTU=''; BIOS_TYPE=''; CPU_TYPE=''
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MACHINE=''; SERIAL_PORT=''; START_VM=no; WIZARD_ADD_GPU=no
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TAB=''; GN=''; CL=''
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create_vm
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'''
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env = dict(os.environ, PATH=str(self.bin) + os.pathsep + os.environ["PATH"],
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ISO_PATH=str(self.iso), ISO_URL=url if url is not None else self.http + route,
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ISO_VOLID="local:iso/installation media.iso",
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OS_TYPE="2" if windows else "3",
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QM_LOG=str(self.qm_log), WGET_LOG=str(self.wget_log),
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DIALOG_ONCE=str(self.directory / "dialog-once"), FIXTURE_DIR=str(self.directory),
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OVERWRITE_STATUS="0" if overwrite else "1", HTTP_FIXTURE=self.http,
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VIRTIO_FIXTURE_URL=self.http + route)
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env.pop("ISO_DIR", None)
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if caller_iso_dir is not None:
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env["ISO_DIR"] = str(caller_iso_dir)
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return subprocess.run(["bash", "--noprofile", "--norc", "-c", functions + prelude],
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env=env, stdin=subprocess.DEVNULL, capture_output=True,
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text=True, timeout=15)
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def qm_calls(self):
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return self.qm_log.read_text() if self.qm_log.exists() else ""
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def test_http_failure_stops_before_creating_a_guest(self):
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result = self.run_wizard("/missing.iso")
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self.assertNotEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(self.qm_calls(), "")
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self.assertNotIn("OK:ISO image downloaded", result.stdout)
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self.assertIn("ERROR:Failed to download ISO image", result.stdout)
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def test_partial_transfer_is_not_published_as_cached_media(self):
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result = self.run_wizard("/partial.iso")
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self.assertNotEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(self.qm_calls(), "")
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self.assertFalse(self.iso.exists(), "A failed transfer must not become reusable media")
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def test_an_empty_cached_download_is_retried(self):
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self.iso.write_bytes(b"")
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result = self.run_wizard()
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(self.iso.read_bytes(), PAYLOAD)
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self.assertIn("create ", self.qm_calls())
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def test_virtio_download_keeps_native_storage_despite_caller_environment(self):
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self.iso.write_bytes(PAYLOAD)
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unrelated = self.directory / "unrelated directory"
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unrelated.mkdir()
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result = self.run_wizard(windows=True, caller_iso_dir=unrelated)
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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driver = self.directory / "virtio-win.iso"
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self.assertTrue(driver.is_file(), result.stdout + result.stderr)
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self.assertEqual(driver.read_bytes(), PAYLOAD)
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self.assertIn("-ide3 ", self.qm_calls())
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self.assertEqual(list(unrelated.iterdir()), [])
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def test_failed_virtio_fetch_is_not_selected_for_attachment(self):
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self.iso.write_bytes(PAYLOAD)
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result = self.run_wizard("/missing.iso", windows=True)
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertNotIn("-ide3 ", self.qm_calls())
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self.assertNotIn("OK:VirtIO driver ISO downloaded successfully.", result.stdout)
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self.assertIn("ERROR:Failed to download VirtIO driver ISO.", result.stdout)
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self.assertFalse((self.directory / "virtio-win.iso").exists())
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def test_successful_virtio_replacement_preserves_existing_permissions(self):
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self.iso.write_bytes(PAYLOAD)
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driver = self.directory / "virtio-win.iso"
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driver.write_bytes(b"previous driver")
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driver.chmod(0o640)
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result = self.run_wizard(windows=True)
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(driver.read_bytes(), PAYLOAD)
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self.assertEqual(driver.stat().st_mode & 0o777, 0o640)
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def test_empty_http_success_is_rejected(self):
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result = self.run_wizard("/empty.iso")
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self.assertNotEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(self.qm_calls(), "")
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self.assertFalse(self.iso.exists())
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self.assertEqual({p.name for p in self.directory.iterdir()}, {"bin", "wget.log"})
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def test_existing_nonempty_media_is_reused_without_fetching(self):
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self.iso.write_bytes(b"existing installation media")
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result = self.run_wizard("/missing.iso")
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(self.iso.read_bytes(), b"existing installation media")
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self.assertFalse(self.wget_log.exists())
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self.assertIn("-ide2 ", self.qm_calls())
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def test_sourceforge_download_keeps_the_selected_destination_name(self):
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result = self.run_wizard(url="https://sourceforge.net/projects/fixture/iso/download")
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(self.iso.read_bytes(), PAYLOAD)
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self.assertFalse((self.directory / "remote-name.iso").exists())
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self.assertEqual({p.name for p in self.directory.iterdir()},
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{"bin", "wget.log", "qm.log", self.iso.name})
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def test_failed_virtio_replacement_preserves_previous_media(self):
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self.iso.write_bytes(PAYLOAD)
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driver = self.directory / "virtio-win.iso"
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driver.write_bytes(b"previous driver")
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driver.chmod(0o640)
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result = self.run_wizard("/partial.iso", windows=True)
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(driver.read_bytes(), b"previous driver")
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self.assertEqual(driver.stat().st_mode & 0o777, 0o640)
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self.assertNotIn("-ide3 ", self.qm_calls())
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self.assertNotIn("OK:VirtIO driver ISO downloaded successfully.", result.stdout)
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def test_declining_virtio_replacement_reuses_previous_media(self):
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self.iso.write_bytes(PAYLOAD)
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driver = self.directory / "virtio-win.iso"
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driver.write_bytes(b"previous driver")
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result = self.run_wizard("/missing.iso", windows=True, overwrite=False)
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(driver.read_bytes(), b"previous driver")
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self.assertFalse(self.wget_log.exists())
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self.assertIn("-ide3 ", self.qm_calls())
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def test_empty_cached_virtio_media_is_retried_not_attached(self):
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self.iso.write_bytes(PAYLOAD)
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driver = self.directory / "virtio-win.iso"
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driver.write_bytes(b"")
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result = self.run_wizard("/missing.iso", windows=True, overwrite=False)
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertTrue(self.wget_log.exists())
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self.assertNotIn("-ide3 ", self.qm_calls())
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self.assertIn("ERROR:Failed to download VirtIO driver ISO.", result.stdout)
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def test_a_directory_cannot_be_published_as_media(self):
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self.iso.mkdir()
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result = self.run_wizard()
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self.assertNotEqual(result.returncode, 0, result.stdout + result.stderr)
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self.assertEqual(self.qm_calls(), "")
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self.assertTrue(self.iso.is_dir())
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self.assertEqual(list(self.iso.iterdir()), [])
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if __name__ == "__main__":
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unittest.main()
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@@ -0,0 +1,217 @@
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"""Offline VM source regressions; execute bounded real functions, never selectors.
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Fixtures are reduced official metadata excerpts captured 2026-10-16. Network
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commands are shell stubs: no ISO downloads, utils sourcing, or host changes.
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"""
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import os
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from pathlib import Path
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import re
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import subprocess
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import tempfile
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import unittest
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ROOT = Path(__file__).resolve().parents[3]
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LINUX = ROOT / "scripts/vm/select_linux_iso.sh"
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NAS = ROOT / "scripts/vm/select_nas_iso.sh"
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FIELDS = ("ISO_NAME", "ISO_TYPE", "ISO_URL", "ISO_FILE", "ISO_PATH", "HN")
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def extract_function(path, name):
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"""Only top-level function definitions with an unindented closing brace."""
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match = re.search(
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rf"^function {re.escape(name)}\(\) \{{\n.*?^\}}(?=\n|$)",
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path.read_text(), re.MULTILINE | re.DOTALL,
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)
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if match is None:
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raise AssertionError(f"Missing bounded function: {name}")
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return match.group(0)
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class IsoSourceTests(unittest.TestCase):
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def run_selector(self, path, function, *, menu_name="", metadata="",
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metadata_url="", fetch_status=0, has_curl=True):
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with tempfile.TemporaryDirectory(prefix="vm-iso-sources-") as directory:
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temp = Path(directory)
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fixture = temp / "metadata.html"
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fixture.write_text(metadata)
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trace = temp / "fetches.txt"
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trace.touch()
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iso_dir = temp / "iso"
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iso_dir.mkdir()
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env = os.environ.copy()
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env.update(ISO_DIR=str(iso_dir), MENU_NAME=menu_name,
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METADATA_FILE=str(fixture), METADATA_URL=metadata_url,
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FETCH_STATUS=str(fetch_status), FETCH_TRACE=str(trace))
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helpers = "\n".join(
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extract_function(NAS, name)
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for name in ("_has_curl", "_latest_version_from_lines")
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)
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script = helpers + r'''
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translate() { printf '%s' "$1"; }
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curl() {
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local url="${@: -1}"
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printf '%s\n' "$url" >> "$FETCH_TRACE"
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[[ "$url" == "$METADATA_URL" ]] || return 97
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[[ "$FETCH_STATUS" == 0 ]] || return "$FETCH_STATUS"
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cat "$METADATA_FILE"
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}
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wget() { return 97; }
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dialog() {
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local arg previous="" name
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for arg in "$@"; do
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name="${arg%%│*}"
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name="${name%"${name##*[![:space:]]}"}"
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if [[ "$name" == "$MENU_NAME" ]]; then
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printf '%s' "$previous" >&2
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return 0
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fi
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previous="$arg"
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done
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return 1
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}
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'''
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if not has_curl:
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script += "\n_has_curl() { return 1; }\n"
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script += extract_function(path, function)
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script += f"\n{function} || exit $?\n"
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script += 'printf \'%s\\0\' ' + " ".join(
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f'"${{{field}:-}}"' for field in FIELDS
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)
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result = subprocess.run(
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["bash", "--noprofile", "--norc", "-c", script],
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env=env, capture_output=True, timeout=10,
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)
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self.assertEqual(result.returncode, 0, result.stderr.decode())
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values = result.stdout.decode().split("\0")
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self.assertEqual(len(values), len(FIELDS) + 1, result.stdout)
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selected = dict(zip(FIELDS, values))
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self.assertEqual(selected["ISO_PATH"], str(iso_dir / selected["ISO_FILE"]))
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return selected, trace.read_text().splitlines()
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def test_debian13_dvd_uses_fixed_official_archive(self):
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selected, calls = self.run_selector(
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LINUX, "select_linux_iso_official", menu_name="Debian 13",
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)
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self.assertEqual(selected["ISO_URL"],
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"https://cdimage.debian.org/cdimage/archive/13.6.0/amd64/iso-dvd/"
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"debian-13.6.0-amd64-DVD-1.iso")
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self.assertEqual(selected["ISO_TYPE"], "Desktop")
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self.assertEqual(selected["ISO_FILE"], "debian-13.6.0-amd64-DVD-1.iso")
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self.assertEqual(calls, [])
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def test_debian13_netinst_uses_fixed_official_archive(self):
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selected, calls = self.run_selector(
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LINUX, "select_linux_iso_official", menu_name="Debian 13 Netinst",
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)
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self.assertEqual(selected["ISO_URL"],
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"https://cdimage.debian.org/cdimage/archive/13.6.0/amd64/iso-cd/"
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"debian-13.6.0-amd64-netinst.iso")
|
||||
self.assertEqual(selected["ISO_TYPE"], "CLI")
|
||||
self.assertEqual(selected["ISO_FILE"], "debian-13.6.0-amd64-netinst.iso")
|
||||
self.assertEqual(calls, [])
|
||||
|
||||
def test_omv_metadata_unavailable_uses_verified_fallback(self):
|
||||
url = "https://sourceforge.net/projects/openmediavault/files/iso/"
|
||||
for has_curl, fetch_status, metadata in (
|
||||
(False, 0, ""), (True, 22, ""),
|
||||
(True, 0, "<html>No release links</html>"),
|
||||
):
|
||||
with self.subTest(has_curl=has_curl, fetch_status=fetch_status):
|
||||
selected, calls = self.run_selector(
|
||||
NAS, "resolve_omv_iso", metadata_url=url, has_curl=has_curl,
|
||||
fetch_status=fetch_status, metadata=metadata,
|
||||
)
|
||||
self.assertEqual(selected["ISO_URL"],
|
||||
url + "8.3.1/openmediavault_8.3.1-amd64.iso/download")
|
||||
self.assertEqual(selected["ISO_NAME"], "OpenMediaVault 8.3.1")
|
||||
self.assertEqual(selected["ISO_FILE"], "openmediavault_8.3.1-amd64.iso")
|
||||
self.assertEqual(calls, [url] if has_curl else [])
|
||||
|
||||
def test_rockstor_resolves_official_landing_without_directory_listing(self):
|
||||
# Exact installer anchor excerpt from https://rockstor.com/dls/index.html.
|
||||
url = "https://rockstor.com/dls/index.html"
|
||||
metadata = (
|
||||
'<a href="https://rockstor.com/downloads/installer/leap/15.6/x86_64/'
|
||||
'Rockstor-Leap15.6-generic.x86_64-5.1.0-0.install.iso">'
|
||||
'Rockstor-Leap15.6-generic.x86_64-5.1.0-0.install.iso</a> <br/>'
|
||||
)
|
||||
selected, calls = self.run_selector(
|
||||
NAS, "resolve_rockstor_iso", metadata_url=url, metadata=metadata,
|
||||
)
|
||||
self.assertEqual(selected["ISO_URL"],
|
||||
"https://rockstor.com/downloads/installer/leap/15.6/x86_64/"
|
||||
"Rockstor-Leap15.6-generic.x86_64-5.1.0-0.install.iso")
|
||||
self.assertEqual(selected["ISO_FILE"],
|
||||
"Rockstor-Leap15.6-generic.x86_64-5.1.0-0.install.iso")
|
||||
self.assertEqual(selected["HN"], "Rockstor")
|
||||
self.assertEqual(calls, [url])
|
||||
|
||||
def test_rockstor_metadata_unavailable_uses_verified_fallback(self):
|
||||
url = "https://rockstor.com/dls/index.html"
|
||||
for has_curl, fetch_status, metadata in (
|
||||
(False, 0, ""), (True, 22, ""),
|
||||
(True, 0, "<html>No installer links</html>"),
|
||||
):
|
||||
with self.subTest(has_curl=has_curl, fetch_status=fetch_status):
|
||||
selected, calls = self.run_selector(
|
||||
NAS, "resolve_rockstor_iso", metadata_url=url, has_curl=has_curl,
|
||||
fetch_status=fetch_status, metadata=metadata,
|
||||
)
|
||||
self.assertEqual(selected["ISO_URL"],
|
||||
"https://rockstor.com/downloads/installer/leap/15.6/x86_64/"
|
||||
"Rockstor-Leap15.6-generic.x86_64-5.1.0-0.install.iso")
|
||||
self.assertEqual(selected["ISO_NAME"], "Rockstor")
|
||||
self.assertEqual(selected["ISO_FILE"],
|
||||
"Rockstor-Leap15.6-generic.x86_64-5.1.0-0.install.iso")
|
||||
self.assertEqual(calls, [url] if has_curl else [])
|
||||
|
||||
def test_omv_current_metadata_resolution_is_preserved(self):
|
||||
# Reduced release links from the official SourceForge ISO index.
|
||||
url = "https://sourceforge.net/projects/openmediavault/files/iso/"
|
||||
metadata = (
|
||||
'<a href="/projects/openmediavault/files/iso/8.3.1/" '
|
||||
'title="Click to enter 8.3.1">8.3.1</a>\n'
|
||||
'<a href="/projects/openmediavault/files/iso/7.4.17/" '
|
||||
'title="Click to enter 7.4.17">7.4.17</a>'
|
||||
)
|
||||
selected, calls = self.run_selector(
|
||||
NAS, "resolve_omv_iso", metadata_url=url, metadata=metadata,
|
||||
)
|
||||
self.assertEqual(selected["ISO_URL"],
|
||||
url + "8.3.1/openmediavault_8.3.1-amd64.iso/download")
|
||||
self.assertEqual(calls, [url])
|
||||
|
||||
def test_omv_detected_release_takes_precedence_over_fallback(self):
|
||||
url = "https://sourceforge.net/projects/openmediavault/files/iso/"
|
||||
# Synthetic ordering case: must execute the real version parser.
|
||||
metadata = ('<a href="/projects/openmediavault/files/iso/8.10.0/">new</a>'
|
||||
'<a href="/projects/openmediavault/files/iso/8.9.0/">old</a>')
|
||||
selected, calls = self.run_selector(
|
||||
NAS, "resolve_omv_iso", metadata_url=url, metadata=metadata,
|
||||
)
|
||||
self.assertEqual(selected["ISO_URL"],
|
||||
url + "8.10.0/openmediavault_8.10.0-amd64.iso/download")
|
||||
self.assertEqual(calls, [url])
|
||||
|
||||
def test_rockstor_retains_generic_x86_64_leap156_edition(self):
|
||||
url = "https://rockstor.com/dls/index.html"
|
||||
# Synthetic ordering / edition cases; not claims of published images.
|
||||
metadata = "\n".join((
|
||||
"Rockstor-Leap15.6-generic.x86_64-5.10.0-0.install.iso",
|
||||
"Rockstor-Leap15.6-generic.x86_64-5.9.0-0.install.iso",
|
||||
"Rockstor-Leap15.6-generic.aarch64-9.0.0-0.install.iso",
|
||||
"Rockstor-Leap16.0-generic.x86_64-9.0.0-0.install.iso",
|
||||
"Rockstor-Leap15.5-generic.x86_64-9.0.0-0.install.iso",
|
||||
))
|
||||
selected, calls = self.run_selector(
|
||||
NAS, "resolve_rockstor_iso", metadata_url=url, metadata=metadata,
|
||||
)
|
||||
self.assertEqual(selected["ISO_URL"],
|
||||
"https://rockstor.com/downloads/installer/leap/15.6/x86_64/"
|
||||
"Rockstor-Leap15.6-generic.x86_64-5.10.0-0.install.iso")
|
||||
self.assertEqual(calls, [url])
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
unittest.main()
|
||||
Reference in New Issue
Block a user