Sudo-JHare 833bc12d4d Updates
UI, Core logic, FHIR UI
GOFSH integration
THEME FIXES
2025-04-19 01:05:14 +10:00

1134 lines
64 KiB
Python

import sys
import os
sys.path.append(os.path.abspath(os.path.dirname(__file__)))
import datetime
import shutil
from flask import Flask, render_template, request, redirect, url_for, flash, jsonify, Response, current_app, session, send_file, make_response
from flask_sqlalchemy import SQLAlchemy
from flask_wtf import FlaskForm
from flask_wtf.csrf import CSRFProtect
import tarfile
import json
import logging
import requests
import re
import services # Restore full module import
from services import services_bp # Keep Blueprint import
from forms import IgImportForm, ValidationForm, FSHConverterForm
from wtforms import SubmitField
import tempfile
# Set up logging
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger(__name__)
app = Flask(__name__)
app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY', 'your-fallback-secret-key-here')
app.config['SQLALCHEMY_DATABASE_URI'] = os.environ.get('DATABASE_URL', 'sqlite:////app/instance/fhir_ig.db')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['FHIR_PACKAGES_DIR'] = '/app/instance/fhir_packages'
app.config['API_KEY'] = os.environ.get('API_KEY', 'your-fallback-api-key-here')
app.config['VALIDATE_IMPOSED_PROFILES'] = True
app.config['DISPLAY_PROFILE_RELATIONSHIPS'] = True
app.config['UPLOAD_FOLDER'] = '/app/static/uploads' # For GoFSH output
# Ensure directories exist and are writable
instance_path = '/app/instance'
packages_path = app.config['FHIR_PACKAGES_DIR']
logger.debug(f"Instance path configuration: {instance_path}")
logger.debug(f"Database URI: {app.config['SQLALCHEMY_DATABASE_URI']}")
logger.debug(f"Packages path: {packages_path}")
try:
instance_folder_path = app.instance_path
logger.debug(f"Flask instance folder path: {instance_folder_path}")
os.makedirs(instance_folder_path, exist_ok=True)
os.makedirs(packages_path, exist_ok=True)
os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
logger.debug(f"Directories created/verified: Instance: {instance_folder_path}, Packages: {packages_path}")
except Exception as e:
logger.error(f"Failed to create/verify directories: {e}", exc_info=True)
db = SQLAlchemy(app)
csrf = CSRFProtect(app)
# Register Blueprint
app.register_blueprint(services_bp, url_prefix='/api')
class ProcessedIg(db.Model):
id = db.Column(db.Integer, primary_key=True)
package_name = db.Column(db.String(128), nullable=False)
version = db.Column(db.String(64), nullable=False)
processed_date = db.Column(db.DateTime, nullable=False)
resource_types_info = db.Column(db.JSON, nullable=False)
must_support_elements = db.Column(db.JSON, nullable=True)
examples = db.Column(db.JSON, nullable=True)
complies_with_profiles = db.Column(db.JSON, nullable=True)
imposed_profiles = db.Column(db.JSON, nullable=True)
optional_usage_elements = db.Column(db.JSON, nullable=True)
__table_args__ = (db.UniqueConstraint('package_name', 'version', name='uq_package_version'),)
def check_api_key():
api_key = request.headers.get('X-API-Key')
if not api_key and request.is_json:
api_key = request.json.get('api_key')
if not api_key:
logger.error("API key missing in request")
return jsonify({"status": "error", "message": "API key missing"}), 401
if api_key != app.config['API_KEY']:
logger.error("Invalid API key provided.")
return jsonify({"status": "error", "message": "Invalid API key"}), 401
logger.debug("API key validated successfully")
return None
def list_downloaded_packages(packages_dir):
packages = []
errors = []
duplicate_groups = {}
logger.debug(f"Scanning packages directory: {packages_dir}")
if not os.path.exists(packages_dir):
logger.warning(f"Packages directory not found: {packages_dir}")
return packages, errors, duplicate_groups
for filename in os.listdir(packages_dir):
if filename.endswith('.tgz'):
full_path = os.path.join(packages_dir, filename)
name = filename[:-4]
version = ''
parsed_name, parsed_version = services.parse_package_filename(filename)
if parsed_name:
name = parsed_name
version = parsed_version
else:
logger.warning(f"Could not parse version from {filename}, using default name.")
errors.append(f"Could not parse {filename}")
try:
with tarfile.open(full_path, "r:gz") as tar:
pkg_json_member = tar.getmember("package/package.json")
fileobj = tar.extractfile(pkg_json_member)
if fileobj:
pkg_data = json.loads(fileobj.read().decode('utf-8-sig'))
name = pkg_data.get('name', name)
version = pkg_data.get('version', version)
fileobj.close()
except (KeyError, tarfile.TarError, json.JSONDecodeError, UnicodeDecodeError) as e:
logger.warning(f"Could not read package.json from {filename}: {e}")
errors.append(f"Error reading {filename}: {str(e)}")
except Exception as e:
logger.error(f"Unexpected error reading package.json from {filename}: {e}", exc_info=True)
errors.append(f"Unexpected error for {filename}: {str(e)}")
if name and version:
packages.append({'name': name, 'version': version, 'filename': filename})
else:
logger.warning(f"Skipping package {filename} due to invalid name ('{name}') or version ('{version}')")
errors.append(f"Invalid package {filename}: name='{name}', version='{version}'")
name_counts = {}
for pkg in packages:
name = pkg['name']
name_counts[name] = name_counts.get(name, 0) + 1
for name, count in name_counts.items():
if count > 1:
duplicate_groups[name] = sorted([p['version'] for p in packages if p['name'] == name])
logger.debug(f"Found packages: {packages}")
logger.debug(f"Errors during package listing: {errors}")
logger.debug(f"Duplicate groups: {duplicate_groups}")
return packages, errors, duplicate_groups
@app.route('/')
def index():
return render_template('index.html', site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now())
@app.route('/import-ig', methods=['GET', 'POST'])
def import_ig():
form = IgImportForm()
if form.validate_on_submit():
name = form.package_name.data
version = form.package_version.data
dependency_mode = form.dependency_mode.data
try:
result = services.import_package_and_dependencies(name, version, dependency_mode=dependency_mode)
if result['errors'] and not result['downloaded']:
error_msg = result['errors'][0]
simplified_msg = error_msg
if "HTTP error" in error_msg and "404" in error_msg:
simplified_msg = "Package not found on registry (404). Check name and version."
elif "HTTP error" in error_msg:
simplified_msg = f"Registry error: {error_msg.split(': ', 1)[-1]}"
elif "Connection error" in error_msg:
simplified_msg = "Could not connect to the FHIR package registry."
flash(f"Failed to import {name}#{version}: {simplified_msg}", "error")
logger.error(f"Import failed critically for {name}#{version}: {error_msg}")
else:
if result['errors']:
flash(f"Partially imported {name}#{version} with errors during dependency processing. Check logs.", "warning")
for err in result['errors']:
logger.warning(f"Import warning for {name}#{version}: {err}")
else:
flash(f"Successfully downloaded {name}#{version} and dependencies! Mode: {dependency_mode}", "success")
return redirect(url_for('view_igs'))
except Exception as e:
logger.error(f"Unexpected error during IG import: {str(e)}", exc_info=True)
flash(f"An unexpected error occurred downloading the IG: {str(e)}", "error")
else:
for field, errors in form.errors.items():
for error in errors:
flash(f"Error in {getattr(form, field).label.text}: {error}", "danger")
return render_template('import_ig.html', form=form, site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now())
@app.route('/view-igs')
def view_igs():
form = FlaskForm()
processed_igs = ProcessedIg.query.order_by(ProcessedIg.package_name, ProcessedIg.version).all()
processed_ids = {(ig.package_name, ig.version) for ig in processed_igs}
packages_dir = app.config['FHIR_PACKAGES_DIR']
packages, errors, duplicate_groups = list_downloaded_packages(packages_dir)
if errors:
flash(f"Warning: Errors encountered while listing packages: {', '.join(errors)}", "warning")
colors = ['bg-warning', 'bg-info', 'bg-success', 'bg-danger', 'bg-secondary']
group_colors = {}
for i, name in enumerate(duplicate_groups.keys()):
group_colors[name] = colors[i % len(colors)]
return render_template('cp_downloaded_igs.html', form=form, packages=packages,
processed_list=processed_igs, processed_ids=processed_ids,
duplicate_groups=duplicate_groups, group_colors=group_colors,
site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now(),
config=app.config)
@app.route('/push-igs', methods=['GET'])
def push_igs():
# form = FlaskForm() # OLD - Replace this line
form = IgImportForm() # Use a real form class that has CSRF handling built-in
processed_igs = ProcessedIg.query.order_by(ProcessedIg.package_name, ProcessedIg.version).all()
processed_ids = {(ig.package_name, ig.version) for ig in processed_igs}
packages_dir = app.config['FHIR_PACKAGES_DIR']
packages, errors, duplicate_groups = list_downloaded_packages(packages_dir)
if errors:
flash(f"Warning: Errors encountered while listing packages: {', '.join(errors)}", "warning")
colors = ['bg-warning', 'bg-info', 'bg-success', 'bg-danger', 'bg-secondary']
group_colors = {}
for i, name in enumerate(duplicate_groups.keys()):
group_colors[name] = colors[i % len(colors)]
return render_template('cp_push_igs.html', form=form, packages=packages, # Pass the form instance
processed_list=processed_igs, processed_ids=processed_ids,
duplicate_groups=duplicate_groups, group_colors=group_colors,
site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now(),
api_key=app.config['API_KEY'], config=app.config)
@app.route('/process-igs', methods=['POST'])
def process_ig():
form = FlaskForm()
if form.validate_on_submit():
filename = request.form.get('filename')
if not filename or not filename.endswith('.tgz'):
flash("Invalid package file selected.", "error")
return redirect(url_for('view_igs'))
tgz_path = os.path.join(app.config['FHIR_PACKAGES_DIR'], filename)
if not os.path.exists(tgz_path):
flash(f"Package file not found: {filename}", "error")
return redirect(url_for('view_igs'))
name, version = services.parse_package_filename(filename)
if not name:
name = filename[:-4].replace('_', '.')
version = 'unknown'
logger.warning(f"Using fallback naming for {filename} -> {name}#{version}")
try:
logger.info(f"Starting processing for {name}#{version} from file {filename}")
package_info = services.process_package_file(tgz_path)
if package_info.get('errors'):
flash(f"Processing completed with errors for {name}#{version}: {', '.join(package_info['errors'])}", "warning")
optional_usage_dict = {
info['name']: True
for info in package_info.get('resource_types_info', [])
if info.get('optional_usage')
}
logger.debug(f"Optional usage elements identified: {optional_usage_dict}")
existing_ig = ProcessedIg.query.filter_by(package_name=name, version=version).first()
if existing_ig:
logger.info(f"Updating existing processed record for {name}#{version}")
existing_ig.processed_date = datetime.datetime.now(tz=datetime.timezone.utc)
existing_ig.resource_types_info = package_info.get('resource_types_info', [])
existing_ig.must_support_elements = package_info.get('must_support_elements')
existing_ig.examples = package_info.get('examples')
existing_ig.complies_with_profiles = package_info.get('complies_with_profiles', [])
existing_ig.imposed_profiles = package_info.get('imposed_profiles', [])
existing_ig.optional_usage_elements = optional_usage_dict
else:
logger.info(f"Creating new processed record for {name}#{version}")
processed_ig = ProcessedIg(
package_name=name,
version=version,
processed_date=datetime.datetime.now(tz=datetime.timezone.utc),
resource_types_info=package_info.get('resource_types_info', []),
must_support_elements=package_info.get('must_support_elements'),
examples=package_info.get('examples'),
complies_with_profiles=package_info.get('complies_with_profiles', []),
imposed_profiles=package_info.get('imposed_profiles', []),
optional_usage_elements=optional_usage_dict
)
db.session.add(processed_ig)
db.session.commit()
flash(f"Successfully processed {name}#{version}!", "success")
except Exception as e:
db.session.rollback()
logger.error(f"Error processing IG {filename}: {str(e)}", exc_info=True)
flash(f"Error processing IG '{filename}': {str(e)}", "error")
else:
logger.warning(f"Form validation failed for process-igs: {form.errors}")
flash("CSRF token missing or invalid, or other form error.", "error")
return redirect(url_for('view_igs'))
@app.route('/delete-ig', methods=['POST'])
def delete_ig():
form = FlaskForm()
if form.validate_on_submit():
filename = request.form.get('filename')
if not filename or not filename.endswith('.tgz'):
flash("Invalid package file specified.", "error")
return redirect(url_for('view_igs'))
tgz_path = os.path.join(app.config['FHIR_PACKAGES_DIR'], filename)
metadata_path = tgz_path.replace('.tgz', '.metadata.json')
deleted_files = []
errors = []
if os.path.exists(tgz_path):
try:
os.remove(tgz_path)
deleted_files.append(filename)
logger.info(f"Deleted package file: {tgz_path}")
except OSError as e:
errors.append(f"Could not delete {filename}: {e}")
logger.error(f"Error deleting {tgz_path}: {e}")
else:
flash(f"Package file not found: {filename}", "warning")
if os.path.exists(metadata_path):
try:
os.remove(metadata_path)
deleted_files.append(os.path.basename(metadata_path))
logger.info(f"Deleted metadata file: {metadata_path}")
except OSError as e:
errors.append(f"Could not delete metadata for {filename}: {e}")
logger.error(f"Error deleting {metadata_path}: {e}")
if errors:
for error in errors:
flash(error, "error")
elif deleted_files:
flash(f"Deleted: {', '.join(deleted_files)}", "success")
else:
flash("No files found to delete.", "info")
else:
logger.warning(f"Form validation failed for delete-ig: {form.errors}")
flash("CSRF token missing or invalid.", "error")
return redirect(url_for('view_igs'))
@app.route('/unload-ig', methods=['POST'])
def unload_ig():
form = FlaskForm()
if form.validate_on_submit():
ig_id = request.form.get('ig_id')
try:
ig_id_int = int(ig_id)
processed_ig = db.session.get(ProcessedIg, ig_id_int)
if processed_ig:
try:
pkg_name = processed_ig.package_name
pkg_version = processed_ig.version
db.session.delete(processed_ig)
db.session.commit()
flash(f"Unloaded processed data for {pkg_name}#{pkg_version}", "success")
logger.info(f"Unloaded DB record for {pkg_name}#{pkg_version} (ID: {ig_id_int})")
except Exception as e:
db.session.rollback()
flash(f"Error unloading package data: {str(e)}", "error")
logger.error(f"Error deleting ProcessedIg record ID {ig_id_int}: {e}", exc_info=True)
else:
flash(f"Processed package data not found with ID: {ig_id}", "error")
logger.warning(f"Attempted to unload non-existent ProcessedIg record ID: {ig_id}")
except ValueError:
flash("Invalid package ID provided.", "error")
logger.warning(f"Invalid ID format received for unload-ig: {ig_id}")
except Exception as e:
flash(f"An unexpected error occurred during unload: {str(e)}", "error")
logger.error(f"Unexpected error in unload_ig for ID {ig_id}: {e}", exc_info=True)
else:
logger.warning(f"Form validation failed for unload-ig: {form.errors}")
flash("CSRF token missing or invalid.", "error")
return redirect(url_for('view_igs'))
@app.route('/view-ig/<int:processed_ig_id>')
def view_ig(processed_ig_id):
processed_ig = db.session.get(ProcessedIg, processed_ig_id)
if not processed_ig:
flash(f"Processed IG with ID {processed_ig_id} not found.", "error")
return redirect(url_for('view_igs'))
profile_list = [t for t in processed_ig.resource_types_info if t.get('is_profile')]
base_list = [t for t in processed_ig.resource_types_info if not t.get('is_profile')]
examples_by_type = processed_ig.examples or {}
optional_usage_elements = processed_ig.optional_usage_elements or {}
complies_with_profiles = processed_ig.complies_with_profiles or []
imposed_profiles = processed_ig.imposed_profiles or []
logger.debug(f"Viewing IG {processed_ig.package_name}#{processed_ig.version}: "
f"{len(profile_list)} profiles, {len(base_list)} base resources, "
f"{len(optional_usage_elements)} optional elements")
return render_template('cp_view_processed_ig.html',
title=f"View {processed_ig.package_name}#{processed_ig.version}",
processed_ig=processed_ig,
profile_list=profile_list,
base_list=base_list,
examples_by_type=examples_by_type,
site_name='FHIRFLARE IG Toolkit',
now=datetime.datetime.now(),
complies_with_profiles=complies_with_profiles,
imposed_profiles=imposed_profiles,
optional_usage_elements=optional_usage_elements,
config=current_app.config)
@app.route('/get-structure')
def get_structure_definition():
package_name = request.args.get('package_name')
package_version = request.args.get('package_version')
resource_identifier = request.args.get('resource_type')
if not all([package_name, package_version, resource_identifier]):
logger.warning("get_structure_definition: Missing query parameters.")
return jsonify({"error": "Missing required query parameters: package_name, package_version, resource_type"}), 400
packages_dir = current_app.config.get('FHIR_PACKAGES_DIR')
if not packages_dir:
logger.error("FHIR_PACKAGES_DIR not configured.")
return jsonify({"error": "Server configuration error: Package directory not set."}), 500
tgz_filename = services.construct_tgz_filename(package_name, package_version)
tgz_path = os.path.join(packages_dir, tgz_filename)
sd_data = None
fallback_used = False
source_package_id = f"{package_name}#{package_version}"
logger.debug(f"Attempting to find SD for '{resource_identifier}' in {tgz_filename}")
if os.path.exists(tgz_path):
try:
sd_data, _ = services.find_and_extract_sd(tgz_path, resource_identifier)
except Exception as e:
logger.error(f"Error extracting SD for '{resource_identifier}' from {tgz_path}: {e}", exc_info=True)
else:
logger.warning(f"Package file not found: {tgz_path}")
if sd_data is None:
logger.info(f"SD for '{resource_identifier}' not found in {source_package_id}. Attempting fallback to {services.CANONICAL_PACKAGE_ID}.")
core_package_name, core_package_version = services.CANONICAL_PACKAGE
core_tgz_filename = services.construct_tgz_filename(core_package_name, core_package_version)
core_tgz_path = os.path.join(packages_dir, core_tgz_filename)
if not os.path.exists(core_tgz_path):
logger.warning(f"Core package {services.CANONICAL_PACKAGE_ID} not found locally, attempting download.")
try:
result = services.import_package_and_dependencies(core_package_name, core_package_version, dependency_mode='direct')
if result['errors'] and not result['downloaded']:
err_msg = f"Failed to download fallback core package {services.CANONICAL_PACKAGE_ID}: {result['errors'][0]}"
logger.error(err_msg)
return jsonify({"error": f"SD for '{resource_identifier}' not found in primary package, and failed to download core package: {result['errors'][0]}"}), 500
elif not os.path.exists(core_tgz_path):
err_msg = f"Core package download reported success but file {core_tgz_filename} still not found."
logger.error(err_msg)
return jsonify({"error": f"SD for '{resource_identifier}' not found, and core package download failed unexpectedly."}), 500
else:
logger.info(f"Successfully downloaded core package {services.CANONICAL_PACKAGE_ID}.")
except Exception as e:
logger.error(f"Error downloading core package {services.CANONICAL_PACKAGE_ID}: {str(e)}", exc_info=True)
return jsonify({"error": f"SD for '{resource_identifier}' not found, and error downloading core package: {str(e)}"}), 500
if os.path.exists(core_tgz_path):
try:
sd_data, _ = services.find_and_extract_sd(core_tgz_path, resource_identifier)
if sd_data is not None:
fallback_used = True
source_package_id = services.CANONICAL_PACKAGE_ID
logger.info(f"Found SD for '{resource_identifier}' in fallback package {source_package_id}.")
else:
logger.error(f"SD for '{resource_identifier}' not found in primary package OR fallback {services.CANONICAL_PACKAGE_ID}.")
return jsonify({"error": f"StructureDefinition for '{resource_identifier}' not found in {package_name}#{package_version} or in core FHIR package."}), 404
except Exception as e:
logger.error(f"Error extracting SD for '{resource_identifier}' from fallback {core_tgz_path}: {e}", exc_info=True)
return jsonify({"error": f"Error reading core FHIR package: {str(e)}"}), 500
else:
logger.error(f"Core package {core_tgz_path} missing even after download attempt.")
return jsonify({"error": f"SD not found, and core package could not be located/downloaded."}), 500
elements = sd_data.get('snapshot', {}).get('element', [])
if not elements and 'differential' in sd_data:
logger.debug(f"Using differential elements for {resource_identifier} as snapshot is missing.")
elements = sd_data.get('differential', {}).get('element', [])
if not elements:
logger.warning(f"No snapshot or differential elements found in the SD for '{resource_identifier}' from {source_package_id}")
must_support_paths = []
processed_ig = ProcessedIg.query.filter_by(package_name=package_name, version=package_version).first()
if processed_ig and processed_ig.must_support_elements:
must_support_paths = processed_ig.must_support_elements.get(resource_identifier, [])
logger.debug(f"Retrieved {len(must_support_paths)} Must Support paths for '{resource_identifier}' from processed IG {package_name}#{package_version}")
response_data = {
"elements": elements,
"must_support_paths": must_support_paths,
"fallback_used": fallback_used,
"source_package": source_package_id,
"requested_identifier": resource_identifier,
"original_package": f"{package_name}#{package_version}"
}
return jsonify(response_data)
@app.route('/get-example')
def get_example_content():
package_name = request.args.get('package_name')
package_version = request.args.get('package_version')
example_member_path = request.args.get('filename')
if not all([package_name, package_version, example_member_path]):
logger.warning(f"get_example_content: Missing query parameters: name={package_name}, version={package_version}, path={example_member_path}")
return jsonify({"error": "Missing required query parameters: package_name, package_version, filename"}), 400
if not example_member_path.startswith('package/') or '..' in example_member_path:
logger.warning(f"Invalid example file path requested: {example_member_path}")
return jsonify({"error": "Invalid example file path."}), 400
packages_dir = current_app.config.get('FHIR_PACKAGES_DIR')
if not packages_dir:
logger.error("FHIR_PACKAGES_DIR not configured.")
return jsonify({"error": "Server configuration error: Package directory not set."}), 500
tgz_filename = services.construct_tgz_filename(package_name, package_version)
tgz_path = os.path.join(packages_dir, tgz_filename)
if not os.path.exists(tgz_path):
logger.error(f"Package file not found for example extraction: {tgz_path}")
return jsonify({"error": f"Package file not found: {package_name}#{package_version}"}), 404
try:
with tarfile.open(tgz_path, "r:gz") as tar:
try:
example_member = tar.getmember(example_member_path)
with tar.extractfile(example_member) as example_fileobj:
content_bytes = example_fileobj.read()
content_string = content_bytes.decode('utf-8-sig')
content_type = 'application/json' if example_member_path.lower().endswith('.json') else \
'application/xml' if example_member_path.lower().endswith('.xml') else \
'text/plain'
return Response(content_string, mimetype=content_type)
except KeyError:
logger.error(f"Example file '{example_member_path}' not found within {tgz_filename}")
return jsonify({"error": f"Example file '{os.path.basename(example_member_path)}' not found in package."}), 404
except tarfile.TarError as e:
logger.error(f"TarError reading example {example_member_path} from {tgz_filename}: {e}")
return jsonify({"error": f"Error reading package archive: {e}"}), 500
except UnicodeDecodeError as e:
logger.error(f"Encoding error reading example {example_member_path} from {tgz_filename}: {e}")
return jsonify({"error": f"Error decoding example file (invalid UTF-8?): {e}"}), 500
except tarfile.TarError as e:
logger.error(f"Error opening package file {tgz_path}: {e}")
return jsonify({"error": f"Error reading package archive: {e}"}), 500
except FileNotFoundError:
logger.error(f"Package file disappeared: {tgz_path}")
return jsonify({"error": f"Package file not found: {package_name}#{package_version}"}), 404
except Exception as e:
logger.error(f"Unexpected error getting example {example_member_path} from {tgz_filename}: {e}", exc_info=True)
return jsonify({"error": f"An unexpected error occurred: {str(e)}"}), 500
@app.route('/get-package-metadata')
def get_package_metadata():
package_name = request.args.get('package_name')
version = request.args.get('version')
if not package_name or not version:
return jsonify({'error': 'Missing package_name or version parameter'}), 400
try:
metadata = services.get_package_metadata(package_name, version)
if metadata:
return jsonify({
'package_name': metadata.get('package_name'),
'version': metadata.get('version'),
'dependency_mode': metadata.get('dependency_mode'),
'imported_dependencies': metadata.get('imported_dependencies', []),
'complies_with_profiles': metadata.get('complies_with_profiles', []),
'imposed_profiles': metadata.get('imposed_profiles', [])
})
else:
return jsonify({'error': 'Metadata file not found for this package version.'}), 404
except Exception as e:
logger.error(f"Error retrieving metadata for {package_name}#{version}: {e}", exc_info=True)
return jsonify({'error': f'Error retrieving metadata: {str(e)}'}), 500
@app.route('/api/import-ig', methods=['POST'])
def api_import_ig():
auth_error = check_api_key()
if auth_error:
return auth_error
if not request.is_json:
return jsonify({"status": "error", "message": "Request must be JSON"}), 400
data = request.get_json()
package_name = data.get('package_name')
version = data.get('version')
dependency_mode = data.get('dependency_mode', 'recursive')
if not package_name or not version:
return jsonify({"status": "error", "message": "Missing package_name or version"}), 400
if not (isinstance(package_name, str) and isinstance(version, str) and
re.match(r'^[a-zA-Z0-9\-\.]+$', package_name) and
re.match(r'^[a-zA-Z0-9\.\-\+]+$', version)):
return jsonify({"status": "error", "message": "Invalid characters in package name or version"}), 400
valid_modes = ['recursive', 'patch-canonical', 'tree-shaking', 'direct']
if dependency_mode not in valid_modes:
return jsonify({"status": "error", "message": f"Invalid dependency mode: {dependency_mode}. Must be one of {valid_modes}"}), 400
try:
result = services.import_package_and_dependencies(package_name, version, dependency_mode=dependency_mode)
if result['errors'] and not result['downloaded']:
error_msg = f"Failed to import {package_name}#{version}: {result['errors'][0]}"
logger.error(f"[API] Import failed: {error_msg}")
status_code = 404 if "404" in result['errors'][0] else 500
return jsonify({"status": "error", "message": error_msg}), status_code
package_filename = services.construct_tgz_filename(package_name, version)
packages_dir = current_app.config.get('FHIR_PACKAGES_DIR', '/app/instance/fhir_packages')
package_path = os.path.join(packages_dir, package_filename)
complies_with_profiles = []
imposed_profiles = []
processing_errors = []
if os.path.exists(package_path):
logger.info(f"[API] Processing downloaded package {package_path} for metadata.")
process_result = services.process_package_file(package_path)
complies_with_profiles = process_result.get('complies_with_profiles', [])
imposed_profiles = process_result.get('imposed_profiles', [])
if process_result.get('errors'):
processing_errors.extend(process_result['errors'])
logger.warning(f"[API] Errors during post-import processing of {package_name}#{version}: {processing_errors}")
else:
logger.warning(f"[API] Package file {package_path} not found after reported successful download.")
processing_errors.append("Package file disappeared after download.")
all_packages, errors, duplicate_groups_after = list_downloaded_packages(packages_dir)
duplicates_found = []
for name, versions in duplicate_groups_after.items():
duplicates_found.append(f"{name} (Versions present: {', '.join(versions)})")
response_status = "success"
response_message = "Package imported successfully."
if result['errors'] or processing_errors:
response_status = "warning"
response_message = "Package imported, but some errors occurred during processing or dependency handling."
all_issues = result.get('errors', []) + processing_errors
logger.warning(f"[API] Import for {package_name}#{version} completed with warnings/errors: {all_issues}")
response = {
"status": response_status,
"message": response_message,
"package_name": package_name,
"version": version,
"dependency_mode": dependency_mode,
"dependencies_processed": result.get('dependencies', []),
"complies_with_profiles": complies_with_profiles,
"imposed_profiles": imposed_profiles,
"processing_issues": result.get('errors', []) + processing_errors,
"duplicate_packages_present": duplicates_found
}
return jsonify(response), 200
except Exception as e:
logger.error(f"[API] Unexpected error in api_import_ig for {package_name}#{version}: {str(e)}", exc_info=True)
return jsonify({"status": "error", "message": f"Unexpected server error during import: {str(e)}"}), 500
@app.route('/api/push-ig', methods=['POST'])
def api_push_ig():
auth_error = check_api_key()
if auth_error:
return auth_error
if not request.is_json:
return jsonify({"status": "error", "message": "Request must be JSON"}), 400
data = request.get_json()
package_name = data.get('package_name')
version = data.get('version')
fhir_server_url = data.get('fhir_server_url')
include_dependencies = data.get('include_dependencies', True) # Default to True if not provided
# --- Input Validation ---
if not all([package_name, version, fhir_server_url]):
return jsonify({"status": "error", "message": "Missing package_name, version, or fhir_server_url"}), 400
if not (isinstance(fhir_server_url, str) and fhir_server_url.startswith(('http://', 'https://'))):
return jsonify({"status": "error", "message": "Invalid fhir_server_url format."}), 400
if not (isinstance(package_name, str) and isinstance(version, str) and
re.match(r'^[a-zA-Z0-9\-\.]+$', package_name) and
re.match(r'^[a-zA-Z0-9\.\-\+]+$', version)):
return jsonify({"status": "error", "message": "Invalid characters in package name or version"}), 400
# --- File Path Setup ---
packages_dir = current_app.config.get('FHIR_PACKAGES_DIR')
if not packages_dir:
logger.error("[API Push] FHIR_PACKAGES_DIR not configured.")
return jsonify({"status": "error", "message": "Server configuration error: Package directory not set."}), 500
tgz_filename = services.construct_tgz_filename(package_name, version)
tgz_path = os.path.join(packages_dir, tgz_filename)
if not os.path.exists(tgz_path):
logger.error(f"[API Push] Main package not found: {tgz_path}")
return jsonify({"status": "error", "message": f"Package not found locally: {package_name}#{version}"}), 404
# --- Streaming Response ---
def generate_stream():
pushed_packages_info = []
success_count = 0
failure_count = 0
validation_failure_count = 0 # Note: This count is not currently incremented anywhere.
total_resources_attempted = 0
processed_resources = set()
failed_uploads_details = [] # <<<<< Initialize list for failure details
try:
yield json.dumps({"type": "start", "message": f"Starting push for {package_name}#{version} to {fhir_server_url}"}) + "\n"
packages_to_push = [(package_name, version, tgz_path)]
dependencies_to_include = []
# --- Dependency Handling ---
if include_dependencies:
yield json.dumps({"type": "progress", "message": "Checking dependencies..."}) + "\n"
metadata = services.get_package_metadata(package_name, version)
if metadata and metadata.get('imported_dependencies'):
dependencies_to_include = metadata['imported_dependencies']
yield json.dumps({"type": "info", "message": f"Found {len(dependencies_to_include)} dependencies in metadata."}) + "\n"
for dep in dependencies_to_include:
dep_name = dep.get('name')
dep_version = dep.get('version')
if not dep_name or not dep_version:
continue
dep_tgz_filename = services.construct_tgz_filename(dep_name, dep_version)
dep_tgz_path = os.path.join(packages_dir, dep_tgz_filename)
if os.path.exists(dep_tgz_path):
# Add dependency package to the list of packages to process
if (dep_name, dep_version, dep_tgz_path) not in packages_to_push: # Avoid adding duplicates if listed multiple times
packages_to_push.append((dep_name, dep_version, dep_tgz_path))
yield json.dumps({"type": "progress", "message": f"Queued dependency: {dep_name}#{dep_version}"}) + "\n"
else:
yield json.dumps({"type": "warning", "message": f"Dependency package file not found, skipping: {dep_name}#{dep_version} ({dep_tgz_filename})"}) + "\n"
else:
yield json.dumps({"type": "info", "message": "No dependency metadata found or no dependencies listed."}) + "\n"
# --- Resource Extraction ---
resources_to_upload = []
seen_resource_files = set() # Track processed filenames to avoid duplicates across packages
for pkg_name, pkg_version, pkg_path in packages_to_push:
yield json.dumps({"type": "progress", "message": f"Extracting resources from {pkg_name}#{pkg_version}..."}) + "\n"
try:
with tarfile.open(pkg_path, "r:gz") as tar:
for member in tar.getmembers():
if (member.isfile() and
member.name.startswith('package/') and
member.name.lower().endswith('.json') and
os.path.basename(member.name).lower() not in ['package.json', '.index.json', 'validation-summary.json', 'validation-oo.json']): # Skip common metadata files
if member.name in seen_resource_files: # Skip if already seen from another package (e.g., core resource in multiple IGs)
continue
seen_resource_files.add(member.name)
try:
with tar.extractfile(member) as f:
resource_data = json.load(f) # Read and parse JSON content
# Basic check for a valid FHIR resource structure
if isinstance(resource_data, dict) and 'resourceType' in resource_data and 'id' in resource_data:
resources_to_upload.append({
"data": resource_data,
"source_package": f"{pkg_name}#{pkg_version}",
"source_filename": member.name
})
else:
yield json.dumps({"type": "warning", "message": f"Skipping invalid/incomplete resource in {member.name} from {pkg_name}#{pkg_version}"}) + "\n"
except (json.JSONDecodeError, UnicodeDecodeError) as json_e:
yield json.dumps({"type": "warning", "message": f"Skipping non-JSON or corrupt file {member.name} from {pkg_name}#{pkg_version}: {json_e}"}) + "\n"
except Exception as extract_e: # Catch potential errors during file extraction within the tar
yield json.dumps({"type": "warning", "message": f"Error extracting file {member.name} from {pkg_name}#{pkg_version}: {extract_e}"}) + "\n"
except (tarfile.TarError, FileNotFoundError) as tar_e:
# Error reading the package itself
error_msg = f"Error reading package {pkg_name}#{pkg_version}: {tar_e}. Skipping its resources."
yield json.dumps({"type": "error", "message": error_msg}) + "\n"
failure_count += 1 # Increment general failure count
failed_uploads_details.append({'resource': f"Package: {pkg_name}#{pkg_version}", 'error': f"TarError/FileNotFound: {tar_e}"}) # <<<<< ADDED package level error
continue # Skip to the next package if one fails to open
total_resources_attempted = len(resources_to_upload)
yield json.dumps({"type": "info", "message": f"Found {total_resources_attempted} potential resources to upload across all packages."}) + "\n"
# --- Resource Upload Loop ---
session = requests.Session() # Use a session for potential connection reuse
headers = {'Content-Type': 'application/fhir+json', 'Accept': 'application/fhir+json'}
for i, resource_info in enumerate(resources_to_upload, 1):
resource = resource_info["data"]
source_pkg = resource_info["source_package"]
# source_file = resource_info["source_filename"] # Available if needed
resource_type = resource.get('resourceType')
resource_id = resource.get('id')
resource_log_id = f"{resource_type}/{resource_id}"
# Skip if already processed (e.g., if same resource ID appeared in multiple packages)
if resource_log_id in processed_resources:
yield json.dumps({"type": "info", "message": f"Skipping duplicate resource ID: {resource_log_id} (already attempted/uploaded)"}) + "\n"
continue
processed_resources.add(resource_log_id)
resource_url = f"{fhir_server_url.rstrip('/')}/{resource_type}/{resource_id}" # Construct PUT URL
yield json.dumps({"type": "progress", "message": f"Uploading {resource_log_id} ({i}/{total_resources_attempted}) from {source_pkg}..."}) + "\n"
try:
# Attempt to PUT the resource
response = session.put(resource_url, json=resource, headers=headers, timeout=30)
response.raise_for_status() # Raises HTTPError for bad responses (4xx or 5xx)
yield json.dumps({"type": "success", "message": f"Uploaded {resource_log_id} successfully (Status: {response.status_code})"}) + "\n"
success_count += 1
# Track which packages contributed successful uploads
if source_pkg not in [p["id"] for p in pushed_packages_info]:
pushed_packages_info.append({"id": source_pkg, "resource_count": 1})
else:
for p in pushed_packages_info:
if p["id"] == source_pkg:
p["resource_count"] += 1
break
# --- Error Handling for Upload ---
except requests.exceptions.Timeout:
error_msg = f"Timeout uploading {resource_log_id} to {resource_url}"
yield json.dumps({"type": "error", "message": error_msg}) + "\n"
failure_count += 1
failed_uploads_details.append({'resource': resource_log_id, 'error': error_msg}) # <<<<< ADDED
except requests.exceptions.ConnectionError as e:
error_msg = f"Connection error uploading {resource_log_id}: {e}"
yield json.dumps({"type": "error", "message": error_msg}) + "\n"
failure_count += 1
failed_uploads_details.append({'resource': resource_log_id, 'error': error_msg}) # <<<<< ADDED
except requests.exceptions.HTTPError as e:
outcome_text = ""
# Try to parse OperationOutcome from response
try:
outcome = e.response.json()
if outcome and outcome.get('resourceType') == 'OperationOutcome' and outcome.get('issue'):
outcome_text = "; ".join([f"{issue.get('severity', 'info')}: {issue.get('diagnostics') or issue.get('details', {}).get('text', 'No details')}" for issue in outcome['issue']])
except ValueError: # Handle cases where response is not JSON
outcome_text = e.response.text[:200] # Fallback to raw text
error_msg = f"Failed to upload {resource_log_id} (Status: {e.response.status_code}): {outcome_text or str(e)}"
yield json.dumps({"type": "error", "message": error_msg}) + "\n"
failure_count += 1
failed_uploads_details.append({'resource': resource_log_id, 'error': error_msg}) # <<<<< ADDED
except requests.exceptions.RequestException as e: # Catch other potential request errors
error_msg = f"Request error uploading {resource_log_id}: {str(e)}"
yield json.dumps({"type": "error", "message": error_msg}) + "\n"
failure_count += 1
failed_uploads_details.append({'resource': resource_log_id, 'error': error_msg}) # <<<<< ADDED
except Exception as e: # Catch unexpected errors during the PUT request
error_msg = f"Unexpected error uploading {resource_log_id}: {str(e)}"
yield json.dumps({"type": "error", "message": error_msg}) + "\n"
failure_count += 1
failed_uploads_details.append({'resource': resource_log_id, 'error': error_msg}) # <<<<< ADDED
logger.error(f"[API Push] Unexpected upload error for {resource_log_id}: {e}", exc_info=True)
# --- Final Summary ---
# Determine overall status based on counts
final_status = "success" if failure_count == 0 and total_resources_attempted > 0 else \
"partial" if success_count > 0 else \
"failure"
summary_message = f"Push finished: {success_count} succeeded, {failure_count} failed out of {total_resources_attempted} resources attempted."
if validation_failure_count > 0: # This count isn't used currently, but keeping structure
summary_message += f" ({validation_failure_count} failed validation)."
# Create final summary payload
summary = {
"status": final_status,
"message": summary_message,
"target_server": fhir_server_url,
"package_name": package_name, # Initial requested package
"version": version, # Initial requested version
"included_dependencies": include_dependencies,
"resources_attempted": total_resources_attempted,
"success_count": success_count,
"failure_count": failure_count,
"validation_failure_count": validation_failure_count,
"failed_details": failed_uploads_details, # <<<<< ADDED Failure details list
"pushed_packages_summary": pushed_packages_info # Summary of packages contributing uploads
}
yield json.dumps({"type": "complete", "data": summary}) + "\n"
logger.info(f"[API Push] Completed for {package_name}#{version}. Status: {final_status}. {summary_message}")
except Exception as e: # Catch critical errors during the entire stream generation
logger.error(f"[API Push] Critical error during push stream generation for {package_name}#{version}: {str(e)}", exc_info=True)
# Attempt to yield a final error message to the stream
error_response = {
"status": "error",
"message": f"Server error during push operation: {str(e)}"
# Optionally add failed_details collected so far if needed
# "failed_details": failed_uploads_details
}
try:
# Send error info both as a stream message and in the complete data
yield json.dumps({"type": "error", "message": error_response["message"]}) + "\n"
yield json.dumps({"type": "complete", "data": error_response}) + "\n"
except GeneratorExit: # If the client disconnects
logger.warning("[API Push] Stream closed before final error could be sent.")
except Exception as yield_e: # Error during yielding the error itself
logger.error(f"[API Push] Error yielding final error message: {yield_e}")
# Return the streaming response
return Response(generate_stream(), mimetype='application/x-ndjson')
@app.route('/validate-sample', methods=['GET'])
def validate_sample():
form = ValidationForm()
packages = []
packages_dir = app.config['FHIR_PACKAGES_DIR']
if os.path.exists(packages_dir):
for filename in os.listdir(packages_dir):
if filename.endswith('.tgz'):
try:
with tarfile.open(os.path.join(packages_dir, filename), 'r:gz') as tar:
package_json = tar.extractfile('package/package.json')
if package_json:
pkg_info = json.load(package_json)
name = pkg_info.get('name')
version = pkg_info.get('version')
if name and version:
packages.append({'name': name, 'version': version})
except Exception as e:
logger.warning(f"Error reading package {filename}: {e}")
continue
return render_template(
'validate_sample.html',
form=form,
packages=packages,
validation_report=None,
site_name='FHIRFLARE IG Toolkit',
now=datetime.datetime.now()
)
# Exempt specific API views defined directly on 'app'
csrf.exempt(api_import_ig) # Add this line
csrf.exempt(api_push_ig) # Add this line
# Exempt the entire API blueprint (for routes defined IN services.py, like /api/validate-sample)
csrf.exempt(services_bp) # Keep this line for routes defined in the blueprint
def create_db():
logger.debug(f"Attempting to create database tables for URI: {app.config['SQLALCHEMY_DATABASE_URI']}")
try:
db.create_all()
logger.info("Database tables created successfully (if they didn't exist).")
except Exception as e:
logger.error(f"Failed to initialize database tables: {e}", exc_info=True)
raise
with app.app_context():
create_db()
class FhirRequestForm(FlaskForm):
submit = SubmitField('Send Request')
@app.route('/fhir')
def fhir_ui():
form = FhirRequestForm()
return render_template('fhir_ui.html', form=form, site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now())
@app.route('/fhir-ui-operations')
def fhir_ui_operations():
form = FhirRequestForm()
return render_template('fhir_ui_operations.html', form=form, site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now())
@app.route('/fhir/<path:subpath>', methods=['GET', 'POST', 'PUT', 'DELETE'])
def proxy_hapi(subpath):
# Clean subpath to remove r4/, fhir/, leading/trailing slashes
clean_subpath = subpath.replace('r4/', '').replace('fhir/', '').strip('/')
hapi_url = f"http://localhost:8080/fhir/{clean_subpath}" if clean_subpath else "http://localhost:8080/fhir"
headers = {k: v for k, v in request.headers.items() if k != 'Host'}
logger.debug(f"Proxying request: {request.method} {hapi_url}")
try:
response = requests.request(
method=request.method,
url=hapi_url,
headers=headers,
data=request.get_data(),
cookies=request.cookies,
allow_redirects=False
)
response.raise_for_status()
# Strip hop-by-hop headers to avoid chunked encoding issues
response_headers = {
k: v for k, v in response.headers.items()
if k.lower() not in (
'transfer-encoding', 'connection', 'content-encoding',
'content-length', 'keep-alive', 'proxy-authenticate',
'proxy-authorization', 'te', 'trailers', 'upgrade'
)
}
# Ensure Content-Length matches the actual body
response_headers['Content-Length'] = str(len(response.content))
logger.debug(f"Response: {response.status_code} {response.reason}")
return response.content, response.status_code, response_headers.items()
except requests.RequestException as e:
logger.error(f"Proxy error: {str(e)}")
return jsonify({'error': str(e)}), response.status_code if 'response' in locals() else 500
# Assuming 'app' and 'logger' are defined, and other necessary imports are present above
@app.route('/fsh-converter', methods=['GET', 'POST'])
def fsh_converter():
form = FSHConverterForm()
fsh_output = None
error = None
comparison_report = None
# --- Populate package choices ---
packages = []
packages_dir = app.config.get('FHIR_PACKAGES_DIR', '/app/instance/fhir_packages') # Use .get with default
logger.debug(f"Scanning packages directory: {packages_dir}")
if os.path.exists(packages_dir):
tgz_files = [f for f in os.listdir(packages_dir) if f.endswith('.tgz')]
logger.debug(f"Found {len(tgz_files)} .tgz files: {tgz_files}")
for filename in tgz_files:
package_file_path = os.path.join(packages_dir, filename)
try:
# Check if it's a valid tar.gz file before opening
if not tarfile.is_tarfile(package_file_path):
logger.warning(f"Skipping non-tarfile or corrupted file: {filename}")
continue
with tarfile.open(package_file_path, 'r:gz') as tar:
# Find package.json case-insensitively and handle potential path variations
package_json_path = next((m for m in tar.getmembers() if m.name.lower().endswith('package.json') and m.isfile() and ('/' not in m.name.replace('package/','', 1).lower())), None) # Handle package/ prefix better
if package_json_path:
package_json_stream = tar.extractfile(package_json_path)
if package_json_stream:
try:
pkg_info = json.load(package_json_stream)
name = pkg_info.get('name')
version = pkg_info.get('version')
if name and version:
package_id = f"{name}#{version}"
packages.append((package_id, package_id))
logger.debug(f"Added package: {package_id}")
else:
logger.warning(f"Missing name or version in {filename}/package.json: name={name}, version={version}")
except json.JSONDecodeError as json_e:
logger.warning(f"Error decoding package.json from {filename}: {json_e}")
except Exception as read_e:
logger.warning(f"Error reading stream from package.json in {filename}: {read_e}")
finally:
package_json_stream.close() # Ensure stream is closed
else:
logger.warning(f"Could not extract package.json stream from {filename} (path: {package_json_path.name})")
else:
logger.warning(f"No suitable package.json found in {filename}")
except tarfile.ReadError as tar_e:
logger.warning(f"Tarfile read error for {filename}: {tar_e}")
except Exception as e:
logger.warning(f"Error processing package {filename}: {str(e)}")
continue # Continue to next file
else:
logger.warning(f"Packages directory does not exist: {packages_dir}")
unique_packages = sorted(list(set(packages)), key=lambda x: x[0])
form.package.choices = [('', 'None')] + unique_packages
logger.debug(f"Set package choices: {form.package.choices}")
# --- End package choices ---
if form.validate_on_submit(): # This block handles POST requests
input_mode = form.input_mode.data
# Use request.files.get to safely access file data
fhir_file_storage = request.files.get(form.fhir_file.name)
fhir_file = fhir_file_storage if fhir_file_storage and fhir_file_storage.filename != '' else None
fhir_text = form.fhir_text.data
alias_file_storage = request.files.get(form.alias_file.name)
alias_file = alias_file_storage if alias_file_storage and alias_file_storage.filename != '' else None
output_style = form.output_style.data
log_level = form.log_level.data
fhir_version = form.fhir_version.data if form.fhir_version.data != 'auto' else None
fishing_trip = form.fishing_trip.data
dependencies = [dep.strip() for dep in form.dependencies.data.splitlines() if dep.strip()] if form.dependencies.data else None # Use splitlines()
indent_rules = form.indent_rules.data
meta_profile = form.meta_profile.data
no_alias = form.no_alias.data
logger.debug(f"Processing input: mode={input_mode}, has_file={bool(fhir_file)}, has_text={bool(fhir_text)}, has_alias={bool(alias_file)}")
# Pass the FileStorage object directly if needed by process_fhir_input
input_file, temp_dir, alias_path, input_error = services.process_fhir_input(input_mode, fhir_file, fhir_text, alias_file)
if input_error:
error = input_error
flash(error, 'error')
logger.error(f"Input processing error: {error}")
if temp_dir and os.path.exists(temp_dir):
try: shutil.rmtree(temp_dir, ignore_errors=True)
except Exception as cleanup_e: logger.warning(f"Error removing temp dir after input error {temp_dir}: {cleanup_e}")
else:
# Proceed only if input processing was successful
output_dir = os.path.join(app.config.get('UPLOAD_FOLDER', '/app/static/uploads'), 'fsh_output') # Use .get
os.makedirs(output_dir, exist_ok=True)
logger.debug(f"Running GoFSH with input: {input_file}, output_dir: {output_dir}")
# Pass form data directly to run_gofsh
fsh_output, comparison_report, gofsh_error = services.run_gofsh(
input_file, output_dir, output_style, log_level, fhir_version,
fishing_trip, dependencies, indent_rules, meta_profile, alias_path, no_alias
)
# Clean up temp dir after GoFSH run
if temp_dir and os.path.exists(temp_dir):
try:
shutil.rmtree(temp_dir, ignore_errors=True)
logger.debug(f"Successfully removed temp directory: {temp_dir}")
except Exception as cleanup_e:
logger.warning(f"Error removing temp directory {temp_dir}: {cleanup_e}")
if gofsh_error:
error = gofsh_error
flash(error, 'error')
logger.error(f"GoFSH error: {error}")
else:
# Store potentially large output carefully - session might have limits
session['fsh_output'] = fsh_output
flash('Conversion successful!', 'success')
logger.info("FSH conversion successful")
# Return response for POST (AJAX or full page)
if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
logger.debug("Returning partial HTML for AJAX POST request.")
return render_template('_fsh_output.html', form=form, error=error, fsh_output=fsh_output, comparison_report=comparison_report)
else:
# For standard POST, re-render the full page with results/errors
logger.debug("Handling standard POST request, rendering full page.")
return render_template('fsh_converter.html', form=form, error=error, fsh_output=fsh_output, comparison_report=comparison_report, site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now())
# --- Handle GET request (Initial Page Load or Failed POST Validation) ---
else:
if request.method == 'POST': # POST but validation failed
logger.warning("POST request failed form validation.")
# Render the full page, WTForms errors will be displayed by render_field
return render_template('fsh_converter.html', form=form, error="Form validation failed. Please check fields.", fsh_output=None, comparison_report=None, site_name='FHIRFLARE IG Toolkit', now=datetime.datetime.now())
else:
# This is the initial GET request
logger.debug("Handling GET request for FSH converter page.")
# **** FIX APPLIED HERE ****
# Make the response object to add headers
response = make_response(render_template(
'fsh_converter.html',
form=form, # Pass the empty form
error=None,
fsh_output=None,
comparison_report=None,
site_name='FHIRFLARE IG Toolkit',
now=datetime.datetime.now()
))
# Add headers to prevent caching
response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0'
response.headers['Pragma'] = 'no-cache'
response.headers['Expires'] = '0'
return response
# **** END OF FIX ****
@app.route('/download-fsh')
def download_fsh():
fsh_output = session.get('fsh_output')
if not fsh_output:
flash('No FSH output available for download.', 'error')
return redirect(url_for('fsh_converter'))
temp_file = os.path.join(app.config['UPLOAD_FOLDER'], 'output.fsh')
with open(temp_file, 'w', encoding='utf-8') as f:
f.write(fsh_output)
return send_file(temp_file, as_attachment=True, download_name='output.fsh')
@app.route('/favicon.ico')
def favicon():
return send_file(os.path.join(app.static_folder, 'favicon.ico'), mimetype='image/x-icon')
if __name__ == '__main__':
with app.app_context():
logger.debug(f"Instance path configuration: {app.instance_path}")
logger.debug(f"Database URI: {app.config['SQLALCHEMY_DATABASE_URI']}")
logger.debug(f"Packages path: {app.config['FHIR_PACKAGES_DIR']}")
logger.debug(f"Flask instance folder path: {app.instance_path}")
logger.debug(f"Directories created/verified: Instance: {app.instance_path}, Packages: {app.config['FHIR_PACKAGES_DIR']}")
logger.debug(f"Attempting to create database tables for URI: {app.config['SQLALCHEMY_DATABASE_URI']}")
db.create_all()
logger.info("Database tables created successfully (if they didn't exist).")
app.run(host='0.0.0.0', port=5000, debug=False)