Allow images to be extracted from StuffIt, tarball, gzip, and 7z archives

easyinstall.sh

@@ -82,7 +82,7 @@ function sudoCheck() {
 
 # install all dependency packages for RaSCSI Service
 function installPackages() {
-    sudo apt-get update && sudo apt-get install git libspdlog-dev libpcap-dev genisoimage python3 python3-venv python3-dev python3-pip nginx libpcap-dev protobuf-compiler bridge-utils libev-dev libevdev2 -y </dev/null
+    sudo apt-get update && sudo apt-get install git libspdlog-dev libpcap-dev genisoimage python3 python3-venv python3-dev python3-pip nginx libpcap-dev protobuf-compiler bridge-utils libev-dev libevdev2 unar -y </dev/null
 }
 
 # cache the pip packages

python/common/src/rascsi/common_settings.py

@@ -12,6 +12,15 @@ CONFIG_FILE_SUFFIX = "json"
 # File ending used for drive properties files
 PROPERTIES_SUFFIX = "properties"
 
+# Supported archive file suffixes
+ARCHIVE_FILE_SUFFIXES = [
+    "zip",
+    "sit",
+    "tar",
+    "gz",
+    "7z"
+    ]
+
 # The RESERVATIONS list is used to keep track of the reserved ID memos.
 # Initialize with a list of 8 empty strings.
 RESERVATIONS = ["" for x in range(0, 8)]

python/common/src/rascsi/file_cmds.py

@@ -5,9 +5,9 @@ Module for methods reading from and writing to the file system
 import os
 import logging
 import asyncio
+from functools import lru_cache
 from pathlib import PurePath
 from zipfile import ZipFile, is_zipfile
-from re import escape, findall
 from time import time
 from subprocess import run, CalledProcessError
 from json import dump, load
@@ -16,10 +16,11 @@ from shutil import copyfile
 import requests
 
 import rascsi_interface_pb2 as proto
-from rascsi.common_settings import CFG_DIR, CONFIG_FILE_SUFFIX, PROPERTIES_SUFFIX, RESERVATIONS
+from rascsi.common_settings import CFG_DIR, CONFIG_FILE_SUFFIX, PROPERTIES_SUFFIX, ARCHIVE_FILE_SUFFIXES, RESERVATIONS
 from rascsi.ractl_cmds import RaCtlCmds
 from rascsi.return_codes import ReturnCodes
 from rascsi.socket_cmds import SocketCmds
+from util import unarchiver
 
 
 class FileCmds:
@@ -97,19 +98,31 @@ class FileCmds:
                 prop = process["conf"]
             else:
                 prop = False
-            if file.name.lower().endswith(".zip"):
-                zip_path = f"{server_info['image_dir']}/{file.name}"
-                if is_zipfile(zip_path):
-                    zipfile = ZipFile(zip_path)
-                    # Get a list of (str) containing all zipfile members
-                    zip_members = zipfile.namelist()
-                    # Strip out directories from the list
-                    zip_members = [x for x in zip_members if not x.endswith("/")]
-                else:
-                    logging.warning("%s is an invalid zip file", zip_path)
-                    zip_members = False
-            else:
-                zip_members = False
+
+            archive_contents = []
+            if PurePath(file.name).suffix.lower()[1:] in ARCHIVE_FILE_SUFFIXES:
+                try:
+                    archive_info = self._get_archive_info(
+                        f"{server_info['image_dir']}/{file.name}",
+                        _cache_extra_key=file.size
+                        )
+
+                    properties_files = [x["path"]
+                                        for x in archive_info["members"]
+                                        if x["path"].endswith(PROPERTIES_SUFFIX)]
+
+                    for member in archive_info["members"]:
+                        if member["is_dir"] or member["is_resource_fork"]:
+                            continue
+
+                        if PurePath(member["path"]).suffix.lower()[1:] == PROPERTIES_SUFFIX:
+                            member["is_properties_file"] = True
+                        elif f"{member['path']}.{PROPERTIES_SUFFIX}" in properties_files:
+                            member["related_properties_file"] = f"{member['path']}.{PROPERTIES_SUFFIX}"
+
+                        archive_contents.append(member)
+                except (unarchiver.LsarCommandError, unarchiver.LsarOutputError):
+                    pass
 
             size_mb = "{:,.1f}".format(file.size / 1024 / 1024)
             dtype = proto.PbDeviceType.Name(file.type)
@@ -119,7 +132,7 @@ class FileCmds:
                 "size_mb": size_mb,
                 "detected_type": dtype,
                 "prop": prop,
-                "zip_members": zip_members,
+                "archive_contents": archive_contents,
                 })
 
         return {"status": result.status, "msg": result.msg, "files": files}
@@ -266,62 +279,73 @@ class FileCmds:
             "parameters": parameters,
             }
 
-    def unzip_file(self, file_name, member=False, members=False):
+    def extract_image(self, file_path, members=None, move_properties_files_to_config=True):
         """
-        Takes (str) file_name, optional (str) member, optional (list) of (str) members
-        file_name is the name of the zip file to unzip
-        member is the full path to the particular file in the zip file to unzip
-        members contains all of the full paths to each of the zip archive members
-        Returns (dict) with (boolean) status and (list of str) msg
+        Takes (str) file_path, (list) members, optional (bool) move_properties_files_to_config
+        file_name is the path of the archive file to extract, relative to the images directory
+        members is a list of file paths in the archive file to extract
+        move_properties_files_to_config controls if .properties files are auto-moved to CFG_DIR
+        Returns (dict) result
         """
         server_info = self.ractl.get_server_info()
-        prop_flag = False
 
-        if not member:
-            unzip_proc = asyncio.run(self.run_async("unzip", [
-                "-d",
-                server_info['image_dir'],
-                "-n",
-                "-j",
-                f"{server_info['image_dir']}/{file_name}",
-                ]))
-            if members:
-                for path in members:
-                    if path.endswith(PROPERTIES_SUFFIX):
-                        name = PurePath(path).name
-                        self.rename_file(f"{server_info['image_dir']}/{name}", f"{CFG_DIR}/{name}")
-                        prop_flag = True
-        else:
-            member = escape(member)
-            unzip_proc = asyncio.run(self.run_async("unzip", [
-                "-d",
-                server_info['image_dir'],
-                "-n",
-                "-j",
-                f"{server_info['image_dir']}/{file_name}",
-                member,
-                ]))
-            # Attempt to unzip a properties file in the same archive dir
-            unzip_prop = asyncio.run(self.run_async("unzip", [
-                "-d",
-                CFG_DIR,
-                "-n",
-                "-j",
-                f"{server_info['image_dir']}/{file_name}",
-                f"{member}.{PROPERTIES_SUFFIX}",
-                ]))
+        if not members:
+            return {
+                "status": False,
+                "return_code": ReturnCodes.EXTRACTIMAGE_NO_FILES_SPECIFIED,
+                }
 
-            if unzip_prop["returncode"] == 0:
-                prop_flag = True
-        if unzip_proc["returncode"] != 0:
-            logging.warning("Unzipping failed: %s", unzip_proc["stderr"])
-            return {"status": False, "msg": unzip_proc["stderr"]}
-
-        unzipped = findall(
-            "(?:inflating|extracting):(.+)\n",
-            unzip_proc["stdout"]
+        try:
+            extract_result = unarchiver.extract_archive(
+                f"{server_info['image_dir']}/{file_path}",
+                members=members,
+                output_dir=server_info["image_dir"],
                 )
-        return {"status": True, "msg": unzipped, "prop_flag": prop_flag}
+
+            properties_files_moved = []
+            if move_properties_files_to_config:
+                for file in extract_result["extracted"]:
+                    if file.get("name").endswith(".properties"):
+                        if (self.rename_file(
+                                file["absolute_path"],
+                                f"{CFG_DIR}/{file['name']}"
+                                )):
+                            properties_files_moved.append({
+                                "status": True,
+                                "name": file["path"],
+                                "path": f"{CFG_DIR}/{file['name']}",
+                                })
+                        else:
+                            properties_files_moved.append({
+                                "status": False,
+                                "name": file["path"],
+                                "path": f"{CFG_DIR}/{file['name']}",
+                                })
+
+            return {
+                "status": True,
+                "return_code": ReturnCodes.EXTRACTIMAGE_SUCCESS,
+                "parameters": {
+                    "count": len(extract_result["extracted"]),
+                    },
+                "extracted": extract_result["extracted"],
+                "skipped": extract_result["skipped"],
+                "properties_files_moved": properties_files_moved,
+                }
+        except unarchiver.UnarNoFilesExtractedError:
+            return {
+                "status": False,
+                "return_code": ReturnCodes.EXTRACTIMAGE_NO_FILES_EXTRACTED,
+                }
+        except (unarchiver.UnarCommandError, unarchiver.UnarUnexpectedOutputError) as error:
+            return {
+                "status": False,
+                "return_code": ReturnCodes.EXTRACTIMAGE_COMMAND_ERROR,
+                "parameters": {
+                    "error": error,
+                    }
+                }
+
 
     def download_file_to_iso(self, url, *iso_args):
         """
@@ -652,3 +676,14 @@ class FileCmds:
             logging.info("stderr: %s", stderr)
 
         return {"returncode": proc.returncode, "stdout": stdout, "stderr": stderr}
+
+    # noinspection PyMethodMayBeStatic
+    @lru_cache(maxsize=32)
+    def _get_archive_info(self, file_path, **kwargs):
+        """
+        Cached wrapper method to improve performance, e.g. on index screen
+        """
+        try:
+            return unarchiver.inspect_archive(file_path)
+        except (unarchiver.LsarCommandError, unarchiver.LsarOutputError):
+            raise

python/common/src/rascsi/return_codes.py

@@ -20,3 +20,7 @@ class ReturnCodes:
     READDRIVEPROPS_SUCCESS = 70
     READDRIVEPROPS_COULD_NOT_READ = 71
     ATTACHIMAGE_COULD_NOT_ATTACH = 80
+    EXTRACTIMAGE_SUCCESS = 90
+    EXTRACTIMAGE_NO_FILES_SPECIFIED = 91
+    EXTRACTIMAGE_NO_FILES_EXTRACTED = 92
+    EXTRACTIMAGE_COMMAND_ERROR = 93

python/common/src/util/run.py

@@ -0,0 +1,45 @@
+"""
+Utility module for running system commands with basic logging
+"""
+
+import asyncio
+import logging
+import os
+
+
+def run(program, args=None):
+    """ Run a command and return its output """
+    return asyncio.run(run_async(program, args))
+
+
+async def run_async(program, args=None):
+    """ Run a command in the background """
+    proc = await asyncio.create_subprocess_exec(
+        program,
+        *args,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE
+        )
+
+    stdout, stderr = await proc.communicate()
+
+    logging.info(
+        "Executed command \"%s %s\" with status code %d",
+        program,
+        " ".join(args),
+        proc.returncode
+        )
+
+    if stdout:
+        stdout = stdout.decode()
+        logging.debug(stdout)
+
+    if stderr:
+        stderr = stderr.decode()
+        logging.warning(stderr)
+
+    return {
+        "returncode": proc.returncode,
+        "stdout": stdout,
+        "stderr": stderr,
+        }

python/common/src/util/unarchiver.py

@@ -0,0 +1,201 @@
+"""
+A minimal wrapper around 'The Unarchiver' command line tools (v1.10.1)
+https://theunarchiver.com/command-line
+Later versions (untested) available at: https://github.com/MacPaw/XADMaster
+"""
+
+import logging
+import pathlib
+
+from tempfile import TemporaryDirectory
+from re import escape, match
+from json import loads, JSONDecodeError
+from util.run import run
+
+FORK_OUTPUT_TYPE_VISIBLE = "visible"
+FORK_OUTPUT_TYPE_HIDDEN = "hidden"
+
+FORK_OUTPUT_TYPES = [FORK_OUTPUT_TYPE_VISIBLE, FORK_OUTPUT_TYPE_HIDDEN]
+
+
+def extract_archive(file_path, **kwargs):
+    """
+    Extracts files from an archive
+    Takes (str) file_path, and kwargs:
+    - (list) members - list of (str) files to be extracted (all files are extracted if None)
+    - (str) output_dir - directory to place the extracted files
+    - (str) fork_output_type - output type for resource forks; "visible" for *.rsrc files, "hidden" for ._* files
+    Returns (dict) of extracted and skipped members
+    """
+    members = kwargs.get("members")
+
+    if kwargs.get("output_dir"):
+        if not pathlib.Path(kwargs["output_dir"]).is_dir():
+            raise ValueError("Argument output_dir must be a directory")
+        output_dir = str(pathlib.Path(kwargs["output_dir"]).resolve())
+    else:
+        output_dir = str(pathlib.Path(file_path).parent.resolve())
+
+    if kwargs.get("fork_output_type"):
+        if kwargs["fork_output_type"] not in FORK_OUTPUT_TYPES:
+            raise ValueError(f"Argument fork_output_type must be one of: {','.join(FORK_OUTPUT_TYPES)} ")
+        fork_output_type = kwargs["fork_output_type"]
+        fork_output_type_args = ["-forks", fork_output_type or FORK_OUTPUT_TYPE_VISIBLE]
+    else:
+        fork_output_type = None
+        fork_output_type_args = []
+
+    with TemporaryDirectory() as tmp_dir:
+        unar_args = [
+            "-output-directory",
+            tmp_dir,
+            "-force-skip",
+            "-no-directory",
+            *fork_output_type_args,
+            '--',
+            file_path,
+            ]
+
+        if members:
+            for member in members:
+                unar_args.append(escape(member))
+
+        process = run("unar", unar_args)
+
+        if process["returncode"] != 0:
+            raise UnarCommandError(f"Non-zero return code: {process['returncode']}")
+
+        unar_result_success = r'^Successfully extracted to "(?P<destination>.+)".$'
+        unar_result_no_files = "No files extracted."
+        unar_file_extracted = \
+            r"^  (?P<path>.+). \(((?P<size>[0-9]+) B)?(?P<types>(dir)?(, )?(rsrc)?)\)\.\.\. (?P<status>[A-Z]+)\.$"
+
+        lines = process["stdout"].rstrip("\n").split("\n")
+
+        if lines[-1] == unar_result_no_files:
+            raise UnarNoFilesExtractedError
+
+        if match(unar_result_success, lines[-1]):
+            extracted_members = []
+
+            for line in lines[1:-1]:
+                if line_matches := match(unar_file_extracted, line):
+                    matches = line_matches.groupdict()
+                    member = {
+                        "name": str(pathlib.PurePath(matches["path"]).name),
+                        "path": matches["path"],
+                        "size": matches["size"] or 0,
+                        "is_dir": False,
+                        "is_resource_fork": False,
+                        "absolute_path": str(pathlib.PurePath(tmp_dir).joinpath(matches["path"])),
+                        }
+
+                    member_types = matches.get("types", "").removeprefix(", ").split(", ")
+
+                    if "dir" in member_types:
+                        member["is_dir"] = True
+
+                    if "rsrc" in member_types:
+                        if not fork_output_type:
+                            continue
+
+                        member["is_resource_fork"] = True
+
+                        # Update names/paths to match unar resource fork naming convention
+                        if fork_output_type == FORK_OUTPUT_TYPE_HIDDEN:
+                            member["name"] = f"._{member['name']}"
+                        else:
+                            member["name"] += ".rsrc"
+                        member["path"] = str(pathlib.PurePath(member["path"]).parent.joinpath(member["name"]))
+                        member["absolute_path"] = str(pathlib.PurePath(tmp_dir).joinpath(member["path"]))
+
+                    logging.debug("Extracted: %s -> %s", member['path'], member['absolute_path'])
+                    extracted_members.append(member)
+                else:
+                    raise UnarUnexpectedOutputError(f"Unexpected output: {line}")
+
+            moved = []
+            skipped = []
+            for member in sorted(extracted_members, key=lambda m: m["path"]):
+                source_path = pathlib.Path(member["absolute_path"])
+                target_path = pathlib.Path(output_dir).joinpath(member["path"])
+                member["absolute_path"] = str(target_path)
+
+                if target_path.exists():
+                    logging.info("Skipping temp file/dir as the target already exists: %s", target_path)
+                    skipped.append(member)
+                    continue
+
+                if member["is_dir"]:
+                    logging.debug("Creating empty dir: %s -> %s", source_path, target_path)
+                    target_path.mkdir(parents=True, exist_ok=True)
+                    moved.append(member)
+                    continue
+
+                # The parent dir may not be specified as a member, so ensure it exists
+                target_path.parent.mkdir(parents=True, exist_ok=True)
+                logging.debug("Moving temp file: %s -> %s", source_path, target_path)
+                source_path.rename(target_path)
+                moved.append(member)
+
+            return {
+                "extracted": moved,
+                "skipped": skipped,
+                }
+
+        raise UnarUnexpectedOutputError(lines[-1])
+
+
+def inspect_archive(file_path, **kwargs):
+    """
+    Calls `lsar` to inspect the contents of an archive
+    Takes (str) file_path
+    Returns (dict) of (str) format, (list) members
+    """
+    if not pathlib.Path(file_path):
+        raise FileNotFoundError(f"File {file_path} does not exist")
+
+    process = run("lsar", ["-json", "--", file_path])
+
+    if process["returncode"] != 0:
+        raise LsarCommandError(f"Non-zero return code: {process['returncode']}")
+
+    try:
+        archive_info = loads(process["stdout"])
+    except JSONDecodeError as error:
+        raise LsarOutputError(f"Unable to read JSON output from lsar: {error.msg}") from error
+
+    members = [{
+        "name": pathlib.PurePath(member.get("XADFileName")).name,
+        "path": member.get("XADFileName"),
+        "size": member.get("XADFileSize"),
+        "is_dir": member.get("XADIsDirectory"),
+        "is_resource_fork": member.get("XADIsResourceFork"),
+        "raw": member,
+        } for member in archive_info.get("lsarContents", [])]
+
+    return {
+        "format": archive_info.get("lsarFormatName"),
+        "members": members,
+        }
+
+
+class UnarCommandError(Exception):
+    """ Command execution was unsuccessful """
+    pass
+
+
+class UnarNoFilesExtractedError(Exception):
+    """ Command completed, but no files extracted """
+
+
+class UnarUnexpectedOutputError(Exception):
+    """ Command output not recognized """
+
+
+class LsarCommandError(Exception):
+    """ Command execution was unsuccessful """
+
+
+class LsarOutputError(Exception):
+    """ Command output could not be parsed"""

python/web/src/return_code_mapper.py

@@ -37,6 +37,14 @@ class ReturnCodeMapper:
             _("Could not read properties from file: %(file_path)s"),
         ReturnCodes.ATTACHIMAGE_COULD_NOT_ATTACH:
             _("Cannot insert an image for %(device_type)s into a %(current_device_type)s device"),
+        ReturnCodes.EXTRACTIMAGE_SUCCESS:
+            _("Extracted %(count)s file(s)"),
+        ReturnCodes.EXTRACTIMAGE_NO_FILES_SPECIFIED:
+            _("Unable to extract archive: No files were specified"),
+        ReturnCodes.EXTRACTIMAGE_NO_FILES_EXTRACTED:
+            _("No files were extracted (existing files are skipped)"),
+        ReturnCodes.EXTRACTIMAGE_COMMAND_ERROR:
+            _("Unable to extract archive: %(error)s"),
         }
 
     @staticmethod

python/web/src/settings.py

@@ -12,8 +12,6 @@ AFP_DIR = f"{HOME_DIR}/afpshare"
 
 MAX_FILE_SIZE = getenv("MAX_FILE_SIZE", str(1024 * 1024 * 1024 * 4))  # 4gb
 
-ARCHIVE_FILE_SUFFIX = "zip"
-
 # The file name of the default config file that loads when rascsi-web starts
 DEFAULT_CONFIG = f"default.{rascsi.common_settings.CONFIG_FILE_SUFFIX}"
 # File containing canonical drive properties

python/web/src/static/style.css

@@ -35,12 +35,14 @@ table, tr, td {
   color: white;
   font-size:20px;
   background-color:red;
+  white-space: pre-line;
 }
 
 .message {
   color: white;
   font-size:20px;
   background-color:green;
+  white-space: pre-line;
 }
 
 td.inactive {

python/web/src/templates/index.html

@@ -185,36 +185,36 @@
                     </ul>
                 </details>
             </td>
-            {% elif file["zip_members"] %}
+            {% elif file["archive_contents"] %}
             <td>
                 <details>
                     <summary>
                         {{ file["name"] }}
                     </summary>
                     <ul style="list-style: none;">
-                    {% for member in file["zip_members"] %}
-                    {% if not member.lower().endswith(PROPERTIES_SUFFIX) %}
+                        {% for member in file["archive_contents"] %}
+                            {% if not member["is_properties_file"] %}
                                 <li>
-                            {% if member + "." + PROPERTIES_SUFFIX in file["zip_members"] %}
-                            <details><summary>{{ member }}
-                            <form action="/files/unzip" method="post">
-                                <input name="zip_file" type="hidden" value="{{ file['name'] }}">
-                                <input name="zip_member" type="hidden" value="{{ member }}">
-                                <input type="submit" value="{{ _("Unzip") }}" onclick="processNotify('{{ _("Unzipping a single file...") }}')">
+                                    {% if member["related_properties_file"] %}
+                                        <details>
+                                            <summary>
+                                                <label>{{ member["path"] }}</label>
+                                                <form action="/files/extract_image" method="post">
+                                                    <input name="archive_file" type="hidden" value="{{ file['name'] }}">
+                                                    <input name="archive_members" type="hidden" value="{{ member["path"] }}|{{ member["related_properties_file"] }}">
+                                                    <input type="submit" value="{{ _("Extract") }}" onclick="processNotify('{{ _("Extracting a single file...") }}')">
                                                 </form>
                                             </summary>
                                             <ul style="list-style: none;">
-                                <li>
-                                {{ member + "." + PROPERTIES_SUFFIX }}
-                                </li>
+                                                <li>{{ member["related_properties_file"] }}</li>
                                             </ul>
                                         </details>
                                     {% else %}
-                            <label for="zip_member">{{ member }}</label>
-                            <form action="/files/unzip" method="post">
-                                <input name="zip_file" type="hidden" value="{{ file['name'] }}">
-                                <input name="zip_member" type="hidden" value="{{ member }}">
-                                <input type="submit" value="{{ _("Unzip") }}" onclick="processNotify('{{ _("Unzipping a single file...") }}')">
+                                        <label>{{ member["path"] }}</label>
+                                        <form action="/files/extract_image" method="post">
+                                            <input name="archive_file" type="hidden" value="{{ file["name"] }}">
+                                            <input name="archive_members" type="hidden" value="{{ member["path"] }}">
+                                            <input type="submit" value="{{ _("Extract") }}" onclick="processNotify('{{ _("Extracting a single file...") }}')">
                                         </form>
                                     {% endif %}
                                 </li>
@@ -238,11 +238,12 @@
                     {{ _("Attached!") }}
                 </center>
                 {% else %}
-                {% if file["name"].lower().endswith(ARCHIVE_FILE_SUFFIX) %}
-                <form action="/files/unzip" method="post">
-                    <input name="zip_file" type="hidden" value="{{ file['name'] }}">
-                    <input name="zip_members" type="hidden" value="{{ file['zip_members'] }}">
-                    <input type="submit" value="{{ _("Unzip All") }}" onclick="processNotify('{{ _("Unzipping all files...") }}')">
+                {% if file["archive_contents"] %}
+                <form action="/files/extract_image" method="post">
+                    <input name="archive_file" type="hidden" value="{{ file['name'] }}">
+                    {% set pipe = joiner("|") %}
+                    <input name="archive_members" type="hidden" value="{% for member in file["archive_contents"] %}{{ pipe() }}{{ member["path"] }}{% endfor %}">
+                    <input type="submit" value="{{ _("Extract All") }}" onclick="processNotify('{{ _("Extracting all files...") }}')">
                 </form>
                 {% else %}
                 <form action="/scsi/attach" method="post">

python/web/src/web.py

@@ -8,9 +8,9 @@ import argparse
 from pathlib import Path
 from functools import wraps
 from grp import getgrall
-from ast import literal_eval
 
 import bjoern
+from rascsi.return_codes import ReturnCodes
 from werkzeug.utils import secure_filename
 from simplepam import authenticate
 from flask_babel import Babel, Locale, refresh, _
@@ -37,6 +37,7 @@ from rascsi.common_settings import (
     CFG_DIR,
     CONFIG_FILE_SUFFIX,
     PROPERTIES_SUFFIX,
+    ARCHIVE_FILE_SUFFIXES,
     RESERVATIONS,
 )
 
@@ -55,7 +56,6 @@ from web_utils import (
 from settings import (
     AFP_DIR,
     MAX_FILE_SIZE,
-    ARCHIVE_FILE_SUFFIX,
     DEFAULT_CONFIG,
     DRIVE_PROPERTIES_FILE,
     AUTH_GROUP,
@@ -139,8 +139,7 @@ def index():
         server_info["scrm"] +
         server_info["scmo"] +
         server_info["sccd"] +
-        [ARCHIVE_FILE_SUFFIX]
-        )
+        ARCHIVE_FILE_SUFFIXES)
 
     if "username" in session:
         username = session["username"]
@@ -182,7 +181,6 @@ def index():
         mo_file_suffix=tuple(server_info["scmo"]),
         username=username,
         auth_active=auth_active(AUTH_GROUP)["status"],
-        ARCHIVE_FILE_SUFFIX=ARCHIVE_FILE_SUFFIX,
         PROPERTIES_SUFFIX=PROPERTIES_SUFFIX,
         REMOVABLE_DEVICE_TYPES=ractl_cmd.get_removable_device_types(),
         DISK_DEVICE_TYPES=ractl_cmd.get_disk_device_types(),
@@ -945,33 +943,38 @@ def copy():
     return redirect(url_for("index"))
 
 
-@APP.route("/files/unzip", methods=["POST"])
+@APP.route("/files/extract_image", methods=["POST"])
 @login_required
-def unzip():
+def extract_image():
     """
-    Unzips all files in a specified zip archive, or a single file in the zip archive
+    Extracts all or a subset of files in the specified archive
     """
-    zip_file = request.form.get("zip_file")
-    zip_member = request.form.get("zip_member") or False
-    zip_members = request.form.get("zip_members") or False
+    archive_file = request.form.get("archive_file")
+    archive_members_raw = request.form.get("archive_members") or None
+    archive_members = archive_members_raw.split("|") if archive_members_raw else None
 
-    if zip_members:
-        zip_members = literal_eval(zip_members)
+    extract_result = file_cmd.extract_image(
+        archive_file,
+        archive_members
+        )
 
-    process = file_cmd.unzip_file(zip_file, zip_member, zip_members)
-    if process["status"]:
-        if not process["msg"]:
-            flash(_("Aborted unzip: File(s) with the same name already exists."), "error")
-            return redirect(url_for("index"))
-        flash(_("Unzipped the following files:"))
-        for msg in process["msg"]:
-            flash(msg)
-        if process["prop_flag"]:
-            flash(_("Properties file(s) have been moved to %(directory)s", directory=CFG_DIR))
-        return redirect(url_for("index"))
+    if extract_result["return_code"] == ReturnCodes.EXTRACTIMAGE_SUCCESS:
+        flash(ReturnCodeMapper.add_msg(extract_result).get("msg"))
+
+        for properties_file in extract_result["properties_files_moved"]:
+            if properties_file["status"]:
+                flash(_("Properties file %(file)s moved to %(directory)s",
+                        file=properties_file['name'],
+                        directory=CFG_DIR
+                        ))
+            else:
+                flash(_("Failed to move properties file %(file)s to %(directory)s",
+                        file=properties_file['name'],
+                        directory=CFG_DIR
+                        ), "error")
+    else:
+        flash(ReturnCodeMapper.add_msg(extract_result).get("msg"), "error")
 
-    flash(_("Failed to unzip %(zip_file)s", zip_file=zip_file), "error")
-    flash(process["msg"], "error")
     return redirect(url_for("index"))
 
 

python/web/start.sh

@@ -25,6 +25,11 @@ if ! command -v unzip &> /dev/null ; then
     echo "Run 'sudo apt install unzip' to fix."
     ERROR=1
 fi
+if ! command -v unar &> /dev/null ; then
+    echo "unar could not be found"
+    echo "Run 'sudo apt install unar' to fix."
+    ERROR=1
+fi
 if [ $ERROR = 1 ] ; then
     echo
     echo "Fix errors and re-run ./start.sh"