121 lines
3.9 KiB
Python
Executable File
121 lines
3.9 KiB
Python
Executable File
from flask import Blueprint, abort, jsonify
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import os
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import json
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prgs_bp = Blueprint('prgs', __name__, url_prefix='/api/prgs')
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# Base directory for files
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PRGS_DIR = os.path.join(os.getcwd(), 'prgs')
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@prgs_bp.route('/<filename>', methods=['GET'])
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def get_prg_file(filename):
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"""
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Return a JSON object with the resource type, its name (title),
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the last progress update (last line) of the PRG file, and, if available,
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the original request parameters (from the first line of the file).
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For resource type and name, the second line of the file is used.
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"""
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try:
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# Security check to prevent path traversal attacks.
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if '..' in filename or '/' in filename:
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abort(400, "Invalid file request")
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filepath = os.path.join(PRGS_DIR, filename)
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with open(filepath, 'r') as f:
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content = f.read()
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lines = content.splitlines()
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# If the file is empty, return default values.
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if not lines:
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return jsonify({
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"type": "",
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"name": "",
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"last_line": None,
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"original_request": None
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})
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# Attempt to extract the original request from the first line.
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original_request = None
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try:
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first_line = json.loads(lines[0])
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if "original_request" in first_line:
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original_request = first_line["original_request"]
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except Exception:
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original_request = None
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# For resource type and name, use the second line if available.
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if len(lines) > 1:
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try:
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second_line = json.loads(lines[1])
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# Directly extract 'type' and 'name' from the JSON
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resource_type = second_line.get("type", "")
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resource_name = second_line.get("name", "")
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except Exception:
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resource_type = ""
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resource_name = ""
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else:
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resource_type = ""
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resource_name = ""
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# Get the last line from the file.
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last_line_raw = lines[-1]
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try:
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last_line_parsed = json.loads(last_line_raw)
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except Exception:
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last_line_parsed = last_line_raw # Fallback to raw string if JSON parsing fails.
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return jsonify({
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"type": resource_type,
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"name": resource_name,
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"last_line": last_line_parsed,
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"original_request": original_request
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})
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except FileNotFoundError:
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abort(404, "File not found")
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except Exception as e:
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abort(500, f"An error occurred: {e}")
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@prgs_bp.route('/delete/<filename>', methods=['DELETE'])
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def delete_prg_file(filename):
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"""
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Delete the specified .prg file from the prgs directory.
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"""
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try:
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# Security checks to prevent path traversal and ensure correct file type.
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if '..' in filename or '/' in filename:
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abort(400, "Invalid file request")
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if not filename.endswith('.prg'):
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abort(400, "Only .prg files can be deleted")
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filepath = os.path.join(PRGS_DIR, filename)
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if not os.path.isfile(filepath):
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abort(404, "File not found")
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os.remove(filepath)
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return {'message': f'File {filename} deleted successfully'}, 200
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except FileNotFoundError:
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abort(404, "File not found")
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except Exception as e:
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abort(500, f"An error occurred: {e}")
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@prgs_bp.route('/list', methods=['GET'])
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def list_prg_files():
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"""
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Retrieve a list of all .prg files in the prgs directory.
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"""
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try:
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prg_files = []
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if os.path.isdir(PRGS_DIR):
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with os.scandir(PRGS_DIR) as entries:
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for entry in entries:
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if entry.is_file() and entry.name.endswith('.prg'):
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prg_files.append(entry.name)
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return jsonify(prg_files)
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except Exception as e:
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abort(500, f"An error occurred: {e}")
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