Mercurial > libervia-web
annotate libervia/pages/_browser/bridge.py @ 1388:68ffd60a58a5
pages (lists): specify when item is coming from config
author | Goffi <goffi@goffi.org> |
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date | Sat, 27 Feb 2021 20:55:35 +0100 |
parents | 8998f01088ac |
children | b28025a7cc28 |
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browser: new bridge module to access restricted bridge from browser
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1 from browser import window |
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2 import javascript |
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3 |
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4 |
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5 class Bridge: |
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6 |
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7 def __getattr__(self, attr): |
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8 return lambda *args, **kwargs: self.call(attr, *args, **kwargs) |
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9 |
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10 def on_load(self, xhr, ev, callback, errback): |
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11 if xhr.status == 200: |
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12 ret = javascript.JSON.parse(xhr.response) |
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13 if callback is not None: |
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14 if ret is None: |
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15 callback() |
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16 else: |
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17 callback(ret) |
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18 elif xhr.status == 502: |
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19 # PROXY_ERROR is used for bridge error |
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20 ret = javascript.JSON.parse(xhr.response) |
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21 if errback is not None: |
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22 errback(ret) |
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23 else: |
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24 print(f"bridge called failed: code: {xhr.response}, text: {xhr.statusText}") |
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25 if errback is not None: |
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26 errback({"fullname": "InternalError", "message": xhr.statusText}) |
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27 |
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28 def call(self, method_name, *args, callback, errback, **kwargs): |
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29 xhr = window.XMLHttpRequest.new() |
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30 xhr.bind('load', lambda ev: self.on_load(xhr, ev, callback, errback)) |
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31 xhr.bind('error', lambda ev: errback( |
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32 {"fullname": "ConnectionError", "message": xhr.statusText})) |
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33 xhr.open("POST", f"/_bridge/{method_name}", True) |
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34 data = javascript.JSON.stringify({ |
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35 "args": args, |
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36 "kwargs": kwargs, |
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37 }) |
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38 xhr.setRequestHeader('X-Csrf-Token', window.csrf_token) |
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39 xhr.send(data) |