1173 lines
44 KiB
Python
1173 lines
44 KiB
Python
import RNS
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import os
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import time
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import urwid
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import nomadnet
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import subprocess
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import threading
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from .MicronParser import markup_to_attrmaps
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from nomadnet.Directory import DirectoryEntry
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from nomadnet.vendor.Scrollable import *
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class BrowserFrame(urwid.Frame):
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def keypress(self, size, key):
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if key == "ctrl w":
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self.delegate.disconnect()
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elif key == "ctrl d":
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self.delegate.back()
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elif key == "ctrl f":
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self.delegate.forward()
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elif key == "ctrl r":
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self.delegate.reload()
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elif key == "ctrl u":
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self.delegate.url_dialog()
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elif key == "ctrl s":
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self.delegate.save_node_dialog()
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elif key == "ctrl b":
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self.delegate.save_node_dialog()
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elif key == "ctrl g":
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nomadnet.NomadNetworkApp.get_shared_instance().ui.main_display.sub_displays.network_display.toggle_fullscreen()
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elif self.focus_position == "body":
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if key == "down" or key == "up":
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try:
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if hasattr(self.delegate, "page_pile") and self.delegate.page_pile:
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def df(loop, user_data):
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st = None
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nf = self.delegate.page_pile.focus
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if hasattr(nf, "key_timeout"):
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st = nf
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elif hasattr(nf, "original_widget"):
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no = nf.original_widget
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if hasattr(no, "original_widget"):
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st = no.original_widget
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else:
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if hasattr(no, "key_timeout"):
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st = no
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if st and hasattr(st, "key_timeout") and hasattr(st, "keypress") and callable(st.keypress):
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st.keypress(None, None)
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nomadnet.NomadNetworkApp.get_shared_instance().ui.loop.set_alarm_in(0.25, df)
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except Exception as e:
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RNS.log("Error while setting up cursor timeout. The contained exception was: "+str(e), RNS.LOG_ERROR)
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return super(BrowserFrame, self).keypress(size, key)
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else:
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return super(BrowserFrame, self).keypress(size, key)
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class Browser:
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DEFAULT_PATH = "/page/index.mu"
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DEFAULT_TIMEOUT = 10
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DEFAULT_CACHE_TIME = 12*60*60
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NO_PATH = 0x00
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PATH_REQUESTED = 0x01
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ESTABLISHING_LINK = 0x02
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LINK_TIMEOUT = 0x03
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LINK_ESTABLISHED = 0x04
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REQUESTING = 0x05
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REQUEST_SENT = 0x06
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REQUEST_FAILED = 0x07
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REQUEST_TIMEOUT = 0x08
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RECEIVING_RESPONSE = 0x09
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DISCONECTED = 0xFE
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DONE = 0xFF
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def __init__(self, app, app_name, aspects, destination_hash = None, path = None, auth_identity = None, delegate = None):
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self.app = app
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self.g = self.app.ui.glyphs
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self.delegate = delegate
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self.app_name = app_name
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self.aspects = aspects
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self.destination_hash = destination_hash
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self.path = path
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self.request_data = None
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self.timeout = Browser.DEFAULT_TIMEOUT
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self.last_keypress = None
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self.link = None
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self.loopback = None
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self.status = Browser.DISCONECTED
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self.response_progress = 0
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self.response_size = None
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self.response_transfer_size = None
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self.saved_file_name = None
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self.page_data = None
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self.displayed_page_data = None
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self.auth_identity = auth_identity
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self.display_widget = None
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self.link_status_showing = False
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self.link_target = None
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self.frame = None
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self.attr_maps = []
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self.page_pile = None
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self.build_display()
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self.history = []
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self.history_ptr = 0
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self.history_inc = False
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self.history_dec = False
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self.reloading = False
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self.loaded_from_cache = False
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if self.path == None:
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self.path = Browser.DEFAULT_PATH
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if self.destination_hash != None:
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self.load_page()
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self.clean_cache()
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def current_url(self):
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if self.destination_hash == None:
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return ""
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else:
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if self.path == None:
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path = ""
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else:
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path = self.path
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return RNS.hexrep(self.destination_hash, delimit=False)+":"+path
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def url_hash(self, url):
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if url == None:
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return None
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else:
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url = url.encode("utf-8")
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return RNS.hexrep(RNS.Identity.full_hash(url), delimit=False)
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def marked_link(self, link_target):
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if self.status == Browser.DONE:
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self.link_target = link_target
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self.app.ui.loop.set_alarm_in(0.1, self.marked_link_job)
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def marked_link_job(self, sender, event):
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link_target = self.link_target
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if link_target == None:
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if self.link_status_showing:
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self.browser_footer = self.make_status_widget()
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self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
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self.link_status_showing = False
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else:
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self.link_status_showing = True
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self.browser_footer = urwid.AttrMap(urwid.Pile([urwid.Divider(self.g["divider1"]), urwid.Text("Link to: "+str(link_target))]), "browser_controls")
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self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
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def expand_shorthands(self, destination_type):
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if destination_type == "nnn":
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return "nomadnetwork.node"
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elif destination_type == "lxmf":
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return "lxmf.delivery"
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else:
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return destination_type
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def handle_link(self, link_target, link_data = None):
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request_data = None
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if link_data != None:
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link_fields = []
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request_data = {}
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all_fields = True if "*" in link_data else False
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for e in link_data:
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if "=" in e:
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c = e.split("=")
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if len(c) == 2:
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request_data["var_"+str(c[0])] = str(c[1])
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else:
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link_fields.append(e)
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def recurse_down(w):
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target = None
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if isinstance(w, list):
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for t in w:
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recurse_down(t)
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elif isinstance(w, tuple):
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for t in w:
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recurse_down(t)
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elif hasattr(w, "contents"):
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recurse_down(w.contents)
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elif hasattr(w, "original_widget"):
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recurse_down(w.original_widget)
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elif hasattr(w, "_original_widget"):
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recurse_down(w._original_widget)
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else:
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if hasattr(w, "field_name") and (all_fields or w.field_name in link_fields):
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request_data["field_"+w.field_name] = w.get_edit_text()
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recurse_down(self.attr_maps)
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RNS.log("Including request data: "+str(request_data), RNS.LOG_DEBUG)
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components = link_target.split("@")
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destination_type = None
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if len(components) == 2:
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destination_type = self.expand_shorthands(components[0])
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link_target = components[1]
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else:
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destination_type = "nomadnetwork.node"
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link_target = components[0]
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if destination_type == "nomadnetwork.node":
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if self.status >= Browser.DISCONECTED:
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RNS.log("Browser handling link to: "+str(link_target), RNS.LOG_DEBUG)
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self.browser_footer = urwid.Text("Opening link to: "+str(link_target))
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try:
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self.retrieve_url(link_target, request_data)
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except Exception as e:
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self.browser_footer = urwid.Text("Could not open link: "+str(e))
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self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
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else:
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RNS.log("Browser already handling link, cannot handle link to: "+str(link_target), RNS.LOG_DEBUG)
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elif destination_type == "lxmf.delivery":
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RNS.log("Passing LXMF link to handler", RNS.LOG_DEBUG)
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self.handle_lxmf_link(link_target)
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else:
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RNS.log("No known handler for destination type "+str(destination_type), RNS.LOG_DEBUG)
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self.browser_footer = urwid.Text("Could not open link: "+"No known handler for destination type "+str(destination_type))
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self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
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def handle_lxmf_link(self, link_target):
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try:
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if not type(link_target) is str:
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raise ValueError("Invalid data type for LXMF link")
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if len(link_target) != (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2:
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raise ValueError("Invalid length for LXMF link")
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try:
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bytes.fromhex(link_target)
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except Exception as e:
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raise ValueError("Could not decode destination hash from LXMF link")
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existing_conversations = nomadnet.Conversation.conversation_list(self.app)
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source_hash_text = link_target
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display_name_data = RNS.Identity.recall_app_data(bytes.fromhex(source_hash_text))
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display_name = None
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if display_name_data != None:
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display_name = display_name_data.decode("utf-8")
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if not source_hash_text in [c[0] for c in existing_conversations]:
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entry = DirectoryEntry(bytes.fromhex(source_hash_text), display_name=display_name)
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self.app.directory.remember(entry)
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new_conversation = nomadnet.Conversation(source_hash_text, nomadnet.NomadNetworkApp.get_shared_instance(), initiator=True)
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self.app.ui.main_display.sub_displays.conversations_display.update_conversation_list()
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self.app.ui.main_display.sub_displays.conversations_display.display_conversation(None, source_hash_text)
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self.app.ui.main_display.show_conversations(None)
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except Exception as e:
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RNS.log("Error while starting conversation from link. The contained exception was: "+str(e), RNS.LOG_ERROR)
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self.browser_footer = urwid.Text("Could not open LXMF link: "+str(e))
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self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
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def micron_released_focus(self):
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if self.delegate != None:
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self.delegate.focus_lists()
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def build_display(self):
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self.browser_header = urwid.Text("")
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self.browser_footer = urwid.Text("")
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self.page_pile = None
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self.browser_body = urwid.Filler(
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urwid.Text("Disconnected\n"+self.g["arrow_l"]+" "+self.g["arrow_r"], align=urwid.CENTER),
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urwid.MIDDLE,
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)
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self.frame = BrowserFrame(self.browser_body, header=self.browser_header, footer=self.browser_footer)
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self.frame.delegate = self
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self.linebox = urwid.LineBox(self.frame, title="Remote Node")
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self.display_widget = urwid.AttrMap(self.linebox, "inactive_text")
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def make_status_widget(self):
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if self.response_progress > 0:
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pb = ResponseProgressBar("progress_empty" , "progress_full", current=self.response_progress, done=1.0, satt=None)
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widget = urwid.Pile([urwid.Divider(self.g["divider1"]), pb])
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else:
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widget = urwid.Pile([urwid.Divider(self.g["divider1"]), urwid.Text(self.status_text())])
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return urwid.AttrMap(widget, "browser_controls")
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def make_control_widget(self):
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return urwid.AttrMap(urwid.Pile([urwid.Text(self.g["node"]+" "+self.current_url()), urwid.Divider(self.g["divider1"])]), "browser_controls")
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def make_request_failed_widget(self):
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def back_action(sender):
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self.status = Browser.DONE
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self.destination_hash = self.previous_destination_hash
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self.path = self.previous_path
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self.update_display()
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columns = urwid.Columns([
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(urwid.WEIGHT, 0.5, urwid.Text(" ")),
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(8, urwid.Button("Back", on_press=back_action)),
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(urwid.WEIGHT, 0.5, urwid.Text(" ")),
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])
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if len(self.attr_maps) > 0:
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pile = urwid.Pile([
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urwid.Text("!\n\n"+self.status_text()+"\n", align=urwid.CENTER),
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columns
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])
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else:
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pile = urwid.Pile([urwid.Text("!\n\n"+self.status_text(), align=urwid.CENTER)])
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return urwid.Filler(pile, urwid.MIDDLE)
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def update_display(self):
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if self.status == Browser.DISCONECTED:
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self.display_widget.set_attr_map({None: "inactive_text"})
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self.page_pile = None
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self.browser_body = urwid.Filler(
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urwid.Text("Disconnected\n"+self.g["arrow_l"]+" "+self.g["arrow_r"], align=urwid.CENTER),
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urwid.MIDDLE,
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)
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self.browser_footer = urwid.Text("")
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self.browser_header = urwid.Text("")
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self.linebox.set_title("Remote Node")
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else:
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self.display_widget.set_attr_map({None: "body_text"})
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self.browser_header = self.make_control_widget()
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if self.destination_hash != None:
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remote_display_string = self.app.directory.simplest_display_str(self.destination_hash)
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else:
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remote_display_string = ""
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if self.loopback != None and remote_display_string == RNS.prettyhexrep(self.loopback):
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remote_display_string = self.app.node.name
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self.linebox.set_title(remote_display_string)
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if self.status == Browser.DONE:
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self.browser_footer = self.make_status_widget()
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self.update_page_display()
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elif self.status == Browser.LINK_TIMEOUT:
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self.browser_body = self.make_request_failed_widget()
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self.browser_footer = urwid.Text("")
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elif self.status <= Browser.REQUEST_SENT:
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if len(self.attr_maps) == 0:
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self.browser_body = urwid.Filler(
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urwid.Text("Retrieving\n["+self.current_url()+"]", align=urwid.CENTER),
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urwid.MIDDLE,
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)
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self.browser_footer = self.make_status_widget()
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elif self.status == Browser.REQUEST_FAILED:
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self.browser_body = self.make_request_failed_widget()
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self.browser_footer = urwid.Text("")
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elif self.status == Browser.REQUEST_TIMEOUT:
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self.browser_body = self.make_request_failed_widget()
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self.browser_footer = urwid.Text("")
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else:
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pass
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self.frame.contents["body"] = (self.browser_body, self.frame.options())
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self.frame.contents["header"] = (self.browser_header, self.frame.options())
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self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
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def update_page_display(self):
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pile = urwid.Pile(self.attr_maps)
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pile.automove_cursor_on_scroll = True
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self.page_pile = pile
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self.browser_body = urwid.AttrMap(ScrollBar(Scrollable(pile, force_forward_keypress=True), thumb_char="\u2503", trough_char=" "), "scrollbar")
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def identify(self):
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if self.link != None:
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if self.link.status == RNS.Link.ACTIVE:
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self.link.identify(self.auth_identity)
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def disconnect(self):
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if self.link != None:
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self.link.teardown()
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self.request_data = None
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self.attr_maps = []
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self.status = Browser.DISCONECTED
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self.response_progress = 0
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self.response_size = None
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self.response_transfer_size = None
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self.history = []
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self.history_ptr = 0
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self.history_inc = False
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self.history_dec = False
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self.update_display()
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|
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def retrieve_url(self, url, request_data = None):
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self.previous_destination_hash = self.destination_hash
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self.previous_path = self.path
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destination_hash = None
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path = None
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|
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components = url.split(":")
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if len(components) == 1:
|
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if len(components[0]) == (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2:
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try:
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destination_hash = bytes.fromhex(components[0])
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except Exception as e:
|
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raise ValueError("Malformed URL")
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path = Browser.DEFAULT_PATH
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else:
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raise ValueError("Malformed URL")
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elif len(components) == 2:
|
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if len(components[0]) == (RNS.Reticulum.TRUNCATED_HASHLENGTH//8)*2:
|
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try:
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destination_hash = bytes.fromhex(components[0])
|
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except Exception as e:
|
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raise ValueError("Malformed URL")
|
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path = components[1]
|
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if len(path) == 0:
|
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path = Browser.DEFAULT_PATH
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else:
|
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if len(components[0]) == 0:
|
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if self.destination_hash != None:
|
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destination_hash = self.destination_hash
|
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path = components[1]
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if len(path) == 0:
|
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path = Browser.DEFAULT_PATH
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else:
|
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raise ValueError("Malformed URL")
|
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else:
|
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raise ValueError("Malformed URL")
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else:
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raise ValueError("Malformed URL")
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|
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if destination_hash != None and path != None:
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if path.startswith("/file/"):
|
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if destination_hash != self.loopback:
|
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if destination_hash == self.destination_hash:
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self.download_file(destination_hash, path)
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else:
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RNS.log("Cannot request file download from a node that is not currently connected.", RNS.LOG_ERROR)
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RNS.log("The requested URL was: "+str(url), RNS.LOG_ERROR)
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else:
|
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self.download_local_file(path)
|
|
else:
|
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self.set_destination_hash(destination_hash)
|
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self.set_path(path)
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self.set_request_data(request_data)
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self.load_page()
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|
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def set_destination_hash(self, destination_hash):
|
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if len(destination_hash) == RNS.Identity.TRUNCATED_HASHLENGTH//8:
|
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self.destination_hash = destination_hash
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return True
|
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else:
|
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return False
|
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|
|
|
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def set_path(self, path):
|
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self.path = path
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|
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def set_request_data(self, request_data):
|
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self.request_data = request_data
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|
|
def set_timeout(self, timeout):
|
|
self.timeout = timeout
|
|
|
|
def download_local_file(self, path):
|
|
try:
|
|
file_path = self.app.filespath+path.replace("/file", "", 1)
|
|
if os.path.isfile(file_path):
|
|
file_name = os.path.basename(file_path)
|
|
file_destination = self.app.downloads_path+"/"+file_name
|
|
|
|
counter = 0
|
|
while os.path.isfile(file_destination):
|
|
counter += 1
|
|
file_destination = self.app.downloads_path+"/"+file_name+"."+str(counter)
|
|
|
|
fs = open(file_path, "rb")
|
|
fd = open(file_destination, "wb")
|
|
fd.write(fs.read())
|
|
fd.close()
|
|
fs.close()
|
|
|
|
self.saved_file_name = file_destination.replace(self.app.downloads_path+"/", "", 1)
|
|
|
|
self.update_display()
|
|
else:
|
|
RNS.log("The requested local download file does not exist: "+str(file_path), RNS.LOG_ERROR)
|
|
|
|
self.status = Browser.DONE
|
|
self.response_progress = 0
|
|
|
|
except Exception as e:
|
|
RNS.log("An error occurred while handling file response. The contained exception was: "+str(e), RNS.LOG_ERROR)
|
|
|
|
def download_file(self, destination_hash, path):
|
|
if self.link == None or self.link.destination.hash != self.destination_hash:
|
|
if not RNS.Transport.has_path(self.destination_hash):
|
|
self.status = Browser.NO_PATH
|
|
self.update_display()
|
|
|
|
RNS.Transport.request_path(self.destination_hash)
|
|
self.status = Browser.PATH_REQUESTED
|
|
self.update_display()
|
|
|
|
pr_time = time.time()+RNS.Transport.first_hop_timeout(self.destination_hash)
|
|
while not RNS.Transport.has_path(self.destination_hash):
|
|
now = time.time()
|
|
if now > pr_time+self.timeout:
|
|
self.request_timeout()
|
|
return
|
|
|
|
time.sleep(0.25)
|
|
|
|
self.status = Browser.ESTABLISHING_LINK
|
|
self.update_display()
|
|
|
|
identity = RNS.Identity.recall(self.destination_hash)
|
|
destination = RNS.Destination(
|
|
identity,
|
|
RNS.Destination.OUT,
|
|
RNS.Destination.SINGLE,
|
|
self.app_name,
|
|
self.aspects
|
|
)
|
|
|
|
self.link = RNS.Link(destination, established_callback = self.link_established, closed_callback = self.link_closed)
|
|
|
|
while self.status == Browser.ESTABLISHING_LINK:
|
|
time.sleep(0.1)
|
|
|
|
if self.status != Browser.LINK_ESTABLISHED:
|
|
return
|
|
|
|
self.update_display()
|
|
|
|
if self.link != None and self.link.destination.hash == self.destination_hash:
|
|
# Send the request
|
|
self.status = Browser.REQUESTING
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
self.saved_file_name = None
|
|
|
|
self.update_display()
|
|
receipt = self.link.request(
|
|
path,
|
|
data = None,
|
|
response_callback = self.file_received,
|
|
failed_callback = self.request_failed,
|
|
progress_callback = self.response_progressed
|
|
)
|
|
|
|
if receipt:
|
|
self.last_request_receipt = receipt
|
|
self.last_request_id = receipt.request_id
|
|
self.status = Browser.REQUEST_SENT
|
|
self.update_display()
|
|
else:
|
|
self.link.teardown()
|
|
|
|
def write_history(self):
|
|
entry = [self.destination_hash, self.path]
|
|
self.history.insert(self.history_ptr, entry)
|
|
self.history_ptr += 1
|
|
|
|
if len(self.history) > self.history_ptr:
|
|
self.history = self.history[:self.history_ptr]
|
|
|
|
def back(self):
|
|
target_ptr = self.history_ptr-1
|
|
if not self.history_inc and not self.history_dec:
|
|
if target_ptr > 0:
|
|
self.history_dec = True
|
|
entry = self.history[target_ptr-1]
|
|
url = RNS.hexrep(entry[0], delimit=False)+":"+entry[1]
|
|
self.history_ptr = target_ptr
|
|
self.retrieve_url(url)
|
|
|
|
def forward(self):
|
|
target_ptr = self.history_ptr+1
|
|
if not self.history_inc and not self.history_dec:
|
|
if target_ptr <= len(self.history):
|
|
self.history_dec = True
|
|
entry = self.history[target_ptr-1]
|
|
url = RNS.hexrep(entry[0], delimit=False)+":"+entry[1]
|
|
self.history_ptr = target_ptr
|
|
self.retrieve_url(url)
|
|
|
|
def reload(self):
|
|
if not self.reloading and self.status == Browser.DONE:
|
|
self.reloading = True
|
|
self.uncache_page(self.current_url())
|
|
self.load_page()
|
|
|
|
def close_dialogs(self):
|
|
options = self.delegate.columns.options(urwid.WEIGHT, self.delegate.right_area_width)
|
|
self.delegate.columns.contents[1] = (self.display_widget, options)
|
|
|
|
def url_dialog(self):
|
|
e_url = UrlEdit(caption="URL : ", edit_text=self.current_url())
|
|
|
|
def dismiss_dialog(sender):
|
|
self.close_dialogs()
|
|
|
|
def confirmed(sender):
|
|
try:
|
|
self.retrieve_url(e_url.get_edit_text())
|
|
except Exception as e:
|
|
self.browser_footer = urwid.Text("Could not open link: "+str(e))
|
|
self.frame.contents["footer"] = (self.browser_footer, self.frame.options())
|
|
|
|
self.close_dialogs()
|
|
|
|
dialog = UrlDialogLineBox(
|
|
urwid.Pile([
|
|
e_url,
|
|
urwid.Columns([
|
|
(urwid.WEIGHT, 0.45, urwid.Button("Cancel", on_press=dismiss_dialog)),
|
|
(urwid.WEIGHT, 0.1, urwid.Text("")),
|
|
(urwid.WEIGHT, 0.45, urwid.Button("Go", on_press=confirmed)),
|
|
])
|
|
]), title="Enter URL"
|
|
)
|
|
e_url.confirmed = confirmed
|
|
dialog.confirmed = confirmed
|
|
dialog.delegate = self
|
|
bottom = self.display_widget
|
|
|
|
overlay = urwid.Overlay(
|
|
dialog,
|
|
bottom,
|
|
align=urwid.CENTER,
|
|
width=(urwid.RELATIVE, 65),
|
|
valign=urwid.MIDDLE,
|
|
height=urwid.PACK,
|
|
left=2,
|
|
right=2,
|
|
)
|
|
|
|
options = self.delegate.columns.options(urwid.WEIGHT, self.delegate.right_area_width)
|
|
self.delegate.columns.contents[1] = (overlay, options)
|
|
self.delegate.columns.focus_position = 1
|
|
|
|
def save_node_dialog(self):
|
|
if self.destination_hash != None:
|
|
try:
|
|
def dismiss_dialog(sender):
|
|
self.close_dialogs()
|
|
|
|
display_name = RNS.Identity.recall_app_data(self.destination_hash)
|
|
disp_str = ""
|
|
if display_name != None:
|
|
display_name = display_name.decode("utf-8")
|
|
disp_str = " \""+display_name+"\""
|
|
|
|
def confirmed(sender):
|
|
node_entry = DirectoryEntry(self.destination_hash, display_name=display_name, hosts_node=True)
|
|
self.app.directory.remember(node_entry)
|
|
self.app.ui.main_display.sub_displays.network_display.directory_change_callback()
|
|
|
|
self.close_dialogs()
|
|
|
|
dialog = UrlDialogLineBox(
|
|
urwid.Pile([
|
|
urwid.Text("Save connected node"+disp_str+" "+RNS.prettyhexrep(self.destination_hash)+" to Known Nodes?\n"),
|
|
urwid.Columns([
|
|
(urwid.WEIGHT, 0.45, urwid.Button("Cancel", on_press=dismiss_dialog)),
|
|
(urwid.WEIGHT, 0.1, urwid.Text("")),
|
|
(urwid.WEIGHT, 0.45, urwid.Button("Save", on_press=confirmed)),
|
|
])
|
|
]), title="Save Node"
|
|
)
|
|
|
|
dialog.confirmed = confirmed
|
|
dialog.delegate = self
|
|
bottom = self.display_widget
|
|
|
|
overlay = urwid.Overlay(
|
|
dialog,
|
|
bottom,
|
|
align=urwid.CENTER,
|
|
width=(urwid.RELATIVE, 50),
|
|
valign=urwid.MIDDLE,
|
|
height=urwid.PACK,
|
|
left=2,
|
|
right=2,
|
|
)
|
|
|
|
options = self.delegate.columns.options(urwid.WEIGHT, self.delegate.right_area_width)
|
|
self.delegate.columns.contents[1] = (overlay, options)
|
|
self.delegate.columns.focus_position = 1
|
|
|
|
except Exception as e:
|
|
pass
|
|
|
|
def load_page(self):
|
|
if self.request_data == None:
|
|
cached = self.get_cached(self.current_url())
|
|
else:
|
|
cached = None
|
|
|
|
if cached:
|
|
self.status = Browser.DONE
|
|
self.page_data = cached
|
|
self.markup = self.page_data.decode("utf-8")
|
|
self.attr_maps = markup_to_attrmaps(self.markup, url_delegate=self)
|
|
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
self.saved_file_name = None
|
|
self.loaded_from_cache = True
|
|
|
|
self.update_display()
|
|
|
|
if not self.history_inc and not self.history_dec and not self.reloading:
|
|
self.write_history()
|
|
else:
|
|
self.history_dec = False
|
|
self.history_inc = False
|
|
self.reloading = False
|
|
|
|
else:
|
|
if self.destination_hash != self.loopback:
|
|
load_thread = threading.Thread(target=self.__load)
|
|
load_thread.setDaemon(True)
|
|
load_thread.start()
|
|
else:
|
|
RNS.log("Browser handling local page: "+str(self.path), RNS.LOG_DEBUG)
|
|
page_path = self.app.pagespath+self.path.replace("/page", "", 1)
|
|
|
|
page_data = b"The requested local page did not exist in the file system"
|
|
if os.path.isfile(page_path):
|
|
if os.access(page_path, os.X_OK):
|
|
if self.request_data != None:
|
|
env_map = self.request_data
|
|
else:
|
|
env_map = {}
|
|
|
|
if "PATH" in os.environ:
|
|
env_map["PATH"] = os.environ["PATH"]
|
|
|
|
generated = subprocess.run([page_path], stdout=subprocess.PIPE, env=env_map)
|
|
page_data = generated.stdout
|
|
else:
|
|
file = open(page_path, "rb")
|
|
page_data = file.read()
|
|
file.close()
|
|
|
|
self.status = Browser.DONE
|
|
self.page_data = page_data
|
|
self.markup = self.page_data.decode("utf-8")
|
|
self.attr_maps = markup_to_attrmaps(self.markup, url_delegate=self)
|
|
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
self.saved_file_name = None
|
|
self.loaded_from_cache = False
|
|
|
|
self.update_display()
|
|
|
|
if not self.history_inc and not self.history_dec and not self.reloading:
|
|
self.write_history()
|
|
else:
|
|
self.history_dec = False
|
|
self.history_inc = False
|
|
self.reloading = False
|
|
|
|
|
|
def __load(self):
|
|
# If an established link exists, but it doesn't match the target
|
|
# destination, we close and clear it.
|
|
if self.link != None and (self.link.destination.hash != self.destination_hash or self.link.status != RNS.Link.ACTIVE):
|
|
self.link.teardown()
|
|
self.link = None
|
|
|
|
# If no link to the destination exists, we create one.
|
|
if self.link == None:
|
|
if not RNS.Transport.has_path(self.destination_hash):
|
|
self.status = Browser.NO_PATH
|
|
self.update_display()
|
|
|
|
RNS.Transport.request_path(self.destination_hash)
|
|
self.status = Browser.PATH_REQUESTED
|
|
self.update_display()
|
|
|
|
pr_time = time.time()+RNS.Transport.first_hop_timeout(self.destination_hash)
|
|
while not RNS.Transport.has_path(self.destination_hash):
|
|
now = time.time()
|
|
if now > pr_time+self.timeout:
|
|
self.request_timeout()
|
|
return
|
|
|
|
time.sleep(0.25)
|
|
|
|
self.status = Browser.ESTABLISHING_LINK
|
|
self.update_display()
|
|
|
|
identity = RNS.Identity.recall(self.destination_hash)
|
|
destination = RNS.Destination(
|
|
identity,
|
|
RNS.Destination.OUT,
|
|
RNS.Destination.SINGLE,
|
|
self.app_name,
|
|
self.aspects
|
|
)
|
|
|
|
self.link = RNS.Link(destination, established_callback = self.link_established, closed_callback = self.link_closed)
|
|
|
|
while self.status == Browser.ESTABLISHING_LINK:
|
|
time.sleep(0.1)
|
|
|
|
if self.status != Browser.LINK_ESTABLISHED:
|
|
return
|
|
|
|
self.update_display()
|
|
|
|
# Send the request
|
|
self.status = Browser.REQUESTING
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
self.saved_file_name = None
|
|
|
|
|
|
self.update_display()
|
|
receipt = self.link.request(
|
|
self.path,
|
|
data = self.request_data,
|
|
response_callback = self.response_received,
|
|
failed_callback = self.request_failed,
|
|
progress_callback = self.response_progressed
|
|
)
|
|
|
|
if receipt:
|
|
self.last_request_receipt = receipt
|
|
self.last_request_id = receipt.request_id
|
|
self.status = Browser.REQUEST_SENT
|
|
self.update_display()
|
|
else:
|
|
self.link.teardown()
|
|
|
|
|
|
|
|
def link_established(self, link):
|
|
self.status = Browser.LINK_ESTABLISHED
|
|
|
|
if self.app.directory.should_identify_on_connect(self.destination_hash):
|
|
RNS.log("Link established, identifying to remote system...", RNS.LOG_VERBOSE)
|
|
self.link.identify(self.app.identity)
|
|
|
|
|
|
def link_closed(self, link):
|
|
if self.status == Browser.DISCONECTED or self.status == Browser.DONE:
|
|
self.link = None
|
|
elif self.status == Browser.ESTABLISHING_LINK:
|
|
self.link_establishment_timeout()
|
|
else:
|
|
self.link = None
|
|
self.status = Browser.REQUEST_FAILED
|
|
self.update_display()
|
|
|
|
def link_establishment_timeout(self):
|
|
self.status = Browser.LINK_TIMEOUT
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
self.link = None
|
|
|
|
self.update_display()
|
|
|
|
|
|
def response_received(self, request_receipt):
|
|
try:
|
|
self.status = Browser.DONE
|
|
self.page_data = request_receipt.response
|
|
self.markup = self.page_data.decode("utf-8")
|
|
self.attr_maps = markup_to_attrmaps(self.markup, url_delegate=self)
|
|
self.response_progress = 0
|
|
self.loaded_from_cache = False
|
|
|
|
# Simple header handling. Should be expanded when more
|
|
# header tags are added.
|
|
cache_time = Browser.DEFAULT_CACHE_TIME
|
|
if self.markup[:4] == "#!c=":
|
|
endpos = self.markup.find("\n")
|
|
if endpos == -1:
|
|
endpos = len(self.markup)
|
|
cache_time = int(self.markup[4:endpos])
|
|
|
|
self.update_display()
|
|
|
|
if not self.history_inc and not self.history_dec and not self.reloading:
|
|
self.write_history()
|
|
else:
|
|
self.history_dec = False
|
|
self.history_inc = False
|
|
self.reloading = False
|
|
|
|
if cache_time == 0:
|
|
RNS.log("Received page "+str(self.current_url())+", not caching due to header.", RNS.LOG_DEBUG)
|
|
else:
|
|
RNS.log("Received page "+str(self.current_url())+", caching for %.3f hours." % (cache_time/60/60), RNS.LOG_DEBUG)
|
|
self.cache_page(cache_time)
|
|
|
|
except Exception as e:
|
|
RNS.log("An error occurred while handling response. The contained exception was: "+str(e))
|
|
|
|
def uncache_page(self, url):
|
|
url_hash = self.url_hash(url)
|
|
files = os.listdir(self.app.cachepath)
|
|
for file in files:
|
|
if file.startswith(url_hash):
|
|
cachefile = self.app.cachepath+"/"+file
|
|
os.unlink(cachefile)
|
|
RNS.log("Removed "+str(cachefile)+" from cache.", RNS.LOG_DEBUG)
|
|
|
|
def get_cached(self, url):
|
|
url_hash = self.url_hash(url)
|
|
files = os.listdir(self.app.cachepath)
|
|
for file in files:
|
|
cachepath = self.app.cachepath+"/"+file
|
|
try:
|
|
components = file.split("_")
|
|
if len(components) == 2 and len(components[0]) == 64 and len(components[1]) > 0:
|
|
expires = float(components[1])
|
|
|
|
if time.time() > expires:
|
|
RNS.log("Removing stale cache entry "+str(file), RNS.LOG_DEBUG)
|
|
os.unlink(cachepath)
|
|
else:
|
|
if file.startswith(url_hash):
|
|
RNS.log("Found "+str(file)+" in cache.", RNS.LOG_DEBUG)
|
|
RNS.log("Returning cached page", RNS.LOG_DEBUG)
|
|
file = open(cachepath, "rb")
|
|
data = file.read()
|
|
file.close()
|
|
return data
|
|
|
|
except Exception as e:
|
|
RNS.log("Error while parsing cache entry "+str(cachepath)+", removing it.", RNS.LOG_ERROR)
|
|
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
|
|
try:
|
|
os.unlink(cachepath)
|
|
except Exception as e:
|
|
RNS.log("Additionally, an exception occurred while unlinking the entry: "+str(e), RNS.LOG_ERROR)
|
|
RNS.log("You will probably need to remove this entry manually by deleting the file: "+str(cachepath), RNS.LOG_ERROR)
|
|
|
|
|
|
return None
|
|
|
|
def clean_cache(self):
|
|
files = os.listdir(self.app.cachepath)
|
|
for file in files:
|
|
cachepath = self.app.cachepath+"/"+file
|
|
try:
|
|
components = file.split("_")
|
|
if len(components) == 2 and len(components[0]) == 64 and len(components[1]) > 0:
|
|
expires = float(components[1])
|
|
|
|
if time.time() > expires:
|
|
RNS.log("Removing stale cache entry "+str(file), RNS.LOG_DEBUG)
|
|
os.unlink(cachepath)
|
|
|
|
except Exception as e:
|
|
pass
|
|
|
|
|
|
def cache_page(self, cache_time):
|
|
url_hash = self.url_hash(self.current_url())
|
|
if url_hash == None:
|
|
RNS.log("Could not cache page "+str(self.current_url()), RNS.LOG_ERROR)
|
|
else:
|
|
try:
|
|
self.uncache_page(self.current_url())
|
|
cache_expires = time.time()+cache_time
|
|
filename = url_hash+"_"+str(cache_expires)
|
|
cachefile = self.app.cachepath+"/"+filename
|
|
file = open(cachefile, "wb")
|
|
file.write(self.page_data)
|
|
file.close()
|
|
RNS.log("Cached page "+str(self.current_url())+" to "+str(cachefile), RNS.LOG_DEBUG)
|
|
|
|
except Exception as e:
|
|
RNS.log("Could not write cache file for page "+str(self.current_url()), RNS.LOG_ERROR)
|
|
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
|
|
|
|
|
|
def file_received(self, request_receipt):
|
|
try:
|
|
file_name = request_receipt.response[0]
|
|
file_data = request_receipt.response[1]
|
|
file_destination_name = file_name.split("/")
|
|
file_destination_name = file_destination_name[len(file_destination_name)-1]
|
|
file_destination = self.app.downloads_path+"/"+file_destination_name
|
|
|
|
|
|
counter = 0
|
|
while os.path.isfile(file_destination):
|
|
counter += 1
|
|
file_destination = self.app.downloads_path+"/"+file_name+"."+str(counter)
|
|
|
|
fh = open(file_destination, "wb")
|
|
fh.write(file_data)
|
|
fh.close()
|
|
|
|
self.saved_file_name = file_destination.replace(self.app.downloads_path+"/", "", 1)
|
|
self.status = Browser.DONE
|
|
self.response_progress = 0
|
|
|
|
self.update_display()
|
|
except Exception as e:
|
|
RNS.log("An error occurred while handling file response. The contained exception was: "+str(e), RNS.LOG_ERROR)
|
|
|
|
|
|
def request_failed(self, request_receipt=None):
|
|
if request_receipt != None:
|
|
if request_receipt.request_id == self.last_request_id:
|
|
self.status = Browser.REQUEST_FAILED
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
|
|
self.update_display()
|
|
if self.link != None:
|
|
try:
|
|
self.link.teardown()
|
|
except Exception as e:
|
|
pass
|
|
else:
|
|
self.status = Browser.REQUEST_FAILED
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
|
|
self.update_display()
|
|
if self.link != None:
|
|
try:
|
|
self.link.teardown()
|
|
except Exception as e:
|
|
pass
|
|
|
|
|
|
def request_timeout(self, request_receipt=None):
|
|
self.status = Browser.REQUEST_TIMEOUT
|
|
self.response_progress = 0
|
|
self.response_size = None
|
|
self.response_transfer_size = None
|
|
|
|
self.update_display()
|
|
if self.link != None:
|
|
try:
|
|
self.link.teardown()
|
|
except Exception as e:
|
|
pass
|
|
|
|
|
|
def response_progressed(self, request_receipt):
|
|
self.response_progress = request_receipt.progress
|
|
self.response_time = request_receipt.get_response_time()
|
|
self.response_size = request_receipt.response_size
|
|
self.response_transfer_size = request_receipt.response_transfer_size
|
|
self.update_display()
|
|
|
|
|
|
def status_text(self):
|
|
if self.status == Browser.DONE and self.response_transfer_size != None:
|
|
if self.response_time != None:
|
|
response_time_str = "{:.2f}".format(self.response_time)
|
|
else:
|
|
response_time_str = "None"
|
|
|
|
stats_string = " "+self.g["page"]+size_str(self.response_size)
|
|
stats_string += " "+self.g["arrow_d"]+size_str(self.response_transfer_size)+" in "+response_time_str
|
|
stats_string += "s "+self.g["speed"]+size_str(self.response_transfer_size/self.response_time, suffix="b")+"/s"
|
|
elif self.loaded_from_cache:
|
|
stats_string = " (cached)"
|
|
else:
|
|
stats_string = ""
|
|
|
|
if self.status == Browser.NO_PATH:
|
|
return "No path to destination known"
|
|
elif self.status == Browser.PATH_REQUESTED:
|
|
return "Path requested, waiting for path..."
|
|
elif self.status == Browser.ESTABLISHING_LINK:
|
|
return "Establishing link..."
|
|
elif self.status == Browser.LINK_TIMEOUT:
|
|
return "Link establishment timed out"
|
|
elif self.status == Browser.LINK_ESTABLISHED:
|
|
return "Link established"
|
|
elif self.status == Browser.REQUESTING:
|
|
return "Sending request..."
|
|
elif self.status == Browser.REQUEST_SENT:
|
|
return "Request sent, awaiting response..."
|
|
elif self.status == Browser.REQUEST_FAILED:
|
|
return "Request failed"
|
|
elif self.status == Browser.REQUEST_TIMEOUT:
|
|
return "Request timed out"
|
|
elif self.status == Browser.RECEIVING_RESPONSE:
|
|
return "Receiving response..."
|
|
elif self.status == Browser.DONE:
|
|
if self.saved_file_name == None:
|
|
return "Done"+stats_string
|
|
else:
|
|
return "Saved "+str(self.saved_file_name)+stats_string
|
|
elif self.status == Browser.DISCONECTED:
|
|
return "Disconnected"
|
|
else:
|
|
return "Browser Status Unknown"
|
|
|
|
|
|
class ResponseProgressBar(urwid.ProgressBar):
|
|
def get_text(self):
|
|
return "Receiving response "+super().get_text()
|
|
|
|
# A convenience function for printing a human-
|
|
# readable file size
|
|
def size_str(num, suffix='B'):
|
|
units = ['','K','M','G','T','P','E','Z']
|
|
last_unit = 'Y'
|
|
|
|
if suffix == 'b':
|
|
num *= 8
|
|
units = ['','K','M','G','T','P','E','Z']
|
|
last_unit = 'Y'
|
|
|
|
for unit in units:
|
|
if abs(num) < 1000.0:
|
|
if unit == "":
|
|
return "%.0f%s%s" % (num, unit, suffix)
|
|
else:
|
|
return "%.2f%s%s" % (num, unit, suffix)
|
|
num /= 1000.0
|
|
|
|
return "%.2f%s%s" % (num, last_unit, suffix)
|
|
|
|
class UrlDialogLineBox(urwid.LineBox):
|
|
def keypress(self, size, key):
|
|
if key == "esc":
|
|
self.delegate.close_dialogs()
|
|
else:
|
|
return super(UrlDialogLineBox, self).keypress(size, key)
|
|
|
|
class UrlEdit(urwid.Edit):
|
|
def keypress(self, size, key):
|
|
if key == "enter":
|
|
self.confirmed(self)
|
|
else:
|
|
return super(UrlEdit, self).keypress(size, key)
|