Create attractive VASL scenarios, with loads of useful information embedded to assist with game play.
https://vasl-templates.org
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103 lines
3.4 KiB
103 lines
3.4 KiB
""" Serve static files. """
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import os
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import io
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import urllib.request
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import urllib.parse
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import mimetypes
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from flask import send_file, send_from_directory, jsonify, redirect, url_for, abort
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from vasl_templates.webapp import app
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from vasl_templates.webapp.file_server.vasl_mod import VaslMod
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from vasl_templates.webapp.config.constants import DATA_DIR
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vasl_mod = None
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if app.config.get( "VASL_MOD" ):
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vasl_mod = VaslMod( app.config["VASL_MOD"], DATA_DIR )
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# ---------------------------------------------------------------------
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class FileServer:
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"""Serve static files."""
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def __init__( self, base_dir ):
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if FileServer.is_remote_path( base_dir ):
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self.base_dir = base_dir
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else:
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self.base_dir = os.path.abspath( base_dir )
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def serve_file( self, path ):
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"""Serve a file."""
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if FileServer.is_remote_path( self.base_dir ):
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url = "{}/{}".format( self.base_dir, path )
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# NOTE: We download the target file and serve it ourself (instead of just redirecting)
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# since VASSAL can't handle SSL :-/
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resp = urllib.request.urlopen( url )
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buf = io.BytesIO()
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buf.write( resp.read() )
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buf.seek( 0 )
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mime_type = mimetypes.guess_type( url )[0]
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if not mime_type:
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# FUDGE! send_file() requires a MIME type, so we take a guess and hope the browser
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# can figure it out if we're wrong :-/
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mime_type = "image/png"
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return send_file( buf, mimetype=mime_type )
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else:
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path = path.replace( "\\", "/" ) # nb: for Windows :-/
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return send_from_directory( self.base_dir, path )
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@staticmethod
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def is_remote_path( path ):
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"""Check if a path is referring to a remote server."""
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return path.startswith( ("http://","https://") )
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# ---------------------------------------------------------------------
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@app.route( "/user/<path:path>" )
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def get_user_file( path ):
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"""Get a static file."""
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dname = app.config.get( "USER_FILES_DIR" )
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if not dname:
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abort( 404 )
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return FileServer( dname ).serve_file( path )
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# ---------------------------------------------------------------------
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def install_vasl_mod( new_vasl_mod ):
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"""Install a new VASL module."""
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global vasl_mod
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vasl_mod = new_vasl_mod
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# ---------------------------------------------------------------------
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@app.route( "/counter/<gpid>/<side>/<int:index>" )
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@app.route( "/counter/<gpid>/<side>", defaults={"index":0} )
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def get_counter_image( gpid, side, index ):
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"""Get a counter image."""
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# check if a VASL module has been configured
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if not vasl_mod:
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return redirect( url_for( "static", filename="images/missing-image.png" ), code=302 )
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# return the specified counter image
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image_path, image_data = vasl_mod.get_piece_image( int(gpid), side, int(index) )
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if not image_data:
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abort( 404 )
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return send_file(
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io.BytesIO( image_data ),
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attachment_filename = os.path.split( image_path )[1]## nb: so Flask can figure out the MIME type
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)
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# ---------------------------------------------------------------------
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@app.route( "/vasl-piece-info" )
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def get_vasl_piece_info():
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"""Get information about the VASL pieces."""
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# check if a VASL module has been configured
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if not vasl_mod:
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return jsonify( {} )
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# return the VASL piece info
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return jsonify( vasl_mod.get_piece_info() )
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