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@@ -1,1052 +1,1077 b'' | |||
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1 | 1 | # coding: utf-8 |
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2 | 2 | """A tornado based IPython notebook server.""" |
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3 | 3 | |
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4 | 4 | # Copyright (c) IPython Development Team. |
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5 | 5 | # Distributed under the terms of the Modified BSD License. |
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6 | 6 | |
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7 | 7 | from __future__ import print_function |
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8 | 8 | |
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9 | 9 | import base64 |
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10 | 10 | import datetime |
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11 | 11 | import errno |
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12 | import importlib | |
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12 | 13 | import io |
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13 | 14 | import json |
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14 | 15 | import logging |
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15 | 16 | import os |
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16 | 17 | import random |
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17 | 18 | import re |
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18 | 19 | import select |
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19 | 20 | import signal |
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20 | 21 | import socket |
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21 | 22 | import sys |
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22 | 23 | import threading |
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23 | 24 | import time |
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24 | 25 | import webbrowser |
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25 | 26 | |
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26 | 27 | |
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27 | 28 | # check for pyzmq 2.1.11 |
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28 | 29 | from IPython.utils.zmqrelated import check_for_zmq |
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29 | 30 | check_for_zmq('2.1.11', 'IPython.html') |
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30 | 31 | |
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31 | 32 | from jinja2 import Environment, FileSystemLoader |
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32 | 33 | |
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33 | 34 | # Install the pyzmq ioloop. This has to be done before anything else from |
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34 | 35 | # tornado is imported. |
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35 | 36 | from zmq.eventloop import ioloop |
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36 | 37 | ioloop.install() |
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37 | 38 | |
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38 | 39 | # check for tornado 3.1.0 |
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39 | 40 | msg = "The IPython Notebook requires tornado >= 4.0" |
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40 | 41 | try: |
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41 | 42 | import tornado |
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42 | 43 | except ImportError: |
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43 | 44 | raise ImportError(msg) |
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44 | 45 | try: |
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45 | 46 | version_info = tornado.version_info |
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46 | 47 | except AttributeError: |
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47 | 48 | raise ImportError(msg + ", but you have < 1.1.0") |
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48 | 49 | if version_info < (4,0): |
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49 | 50 | raise ImportError(msg + ", but you have %s" % tornado.version) |
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50 | 51 | |
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51 | 52 | from tornado import httpserver |
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52 | 53 | from tornado import web |
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53 | 54 | from tornado.log import LogFormatter, app_log, access_log, gen_log |
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54 | 55 | |
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55 | 56 | from IPython.html import ( |
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56 | 57 | DEFAULT_STATIC_FILES_PATH, |
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57 | 58 | DEFAULT_TEMPLATE_PATH_LIST, |
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58 | 59 | ) |
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59 | 60 | from .base.handlers import Template404 |
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60 | 61 | from .log import log_request |
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61 | 62 | from .services.kernels.kernelmanager import MappingKernelManager |
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62 | 63 | from .services.contents.manager import ContentsManager |
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63 | 64 | from .services.contents.filemanager import FileContentsManager |
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64 | 65 | from .services.clusters.clustermanager import ClusterManager |
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65 | 66 | from .services.sessions.sessionmanager import SessionManager |
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66 | 67 | |
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67 | 68 | from .base.handlers import AuthenticatedFileHandler, FileFindHandler |
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68 | 69 | |
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69 | 70 | from IPython.config import Config |
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70 | 71 | from IPython.config.application import catch_config_error, boolean_flag |
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71 | 72 | from IPython.core.application import ( |
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72 | 73 | BaseIPythonApplication, base_flags, base_aliases, |
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73 | 74 | ) |
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74 | 75 | from IPython.core.profiledir import ProfileDir |
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75 | 76 | from IPython.kernel import KernelManager |
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76 | 77 | from IPython.kernel.kernelspec import KernelSpecManager |
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77 | 78 | from IPython.kernel.zmq.session import default_secure, Session |
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78 | 79 | from IPython.nbformat.sign import NotebookNotary |
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79 | 80 | from IPython.utils.importstring import import_item |
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80 | 81 | from IPython.utils import submodule |
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81 | 82 | from IPython.utils.process import check_pid |
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82 | 83 | from IPython.utils.traitlets import ( |
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83 | 84 | Dict, Unicode, Integer, List, Bool, Bytes, Instance, |
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84 | 85 | DottedObjectName, TraitError, |
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85 | 86 | ) |
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86 | 87 | from IPython.utils import py3compat |
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87 | 88 | from IPython.utils.path import filefind, get_ipython_dir |
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88 | 89 | from IPython.utils.sysinfo import get_sys_info |
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89 | 90 | |
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90 | 91 | from .utils import url_path_join |
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91 | 92 | |
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92 | 93 | #----------------------------------------------------------------------------- |
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93 | 94 | # Module globals |
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94 | 95 | #----------------------------------------------------------------------------- |
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95 | 96 | |
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96 | 97 | _examples = """ |
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97 | 98 | ipython notebook # start the notebook |
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98 | 99 | ipython notebook --profile=sympy # use the sympy profile |
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99 | 100 | ipython notebook --certfile=mycert.pem # use SSL/TLS certificate |
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100 | 101 | """ |
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101 | 102 | |
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102 | 103 | #----------------------------------------------------------------------------- |
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103 | 104 | # Helper functions |
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104 | 105 | #----------------------------------------------------------------------------- |
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105 | 106 | |
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106 | 107 | def random_ports(port, n): |
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107 | 108 | """Generate a list of n random ports near the given port. |
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108 | 109 | |
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109 | 110 | The first 5 ports will be sequential, and the remaining n-5 will be |
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110 | 111 | randomly selected in the range [port-2*n, port+2*n]. |
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111 | 112 | """ |
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112 | 113 | for i in range(min(5, n)): |
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113 | 114 | yield port + i |
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114 | 115 | for i in range(n-5): |
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115 | 116 | yield max(1, port + random.randint(-2*n, 2*n)) |
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116 | 117 | |
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117 | 118 | def load_handlers(name): |
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118 | 119 | """Load the (URL pattern, handler) tuples for each component.""" |
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119 | 120 | name = 'IPython.html.' + name |
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120 | 121 | mod = __import__(name, fromlist=['default_handlers']) |
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121 | 122 | return mod.default_handlers |
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122 | 123 | |
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123 | 124 | #----------------------------------------------------------------------------- |
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124 | 125 | # The Tornado web application |
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125 | 126 | #----------------------------------------------------------------------------- |
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126 | 127 | |
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127 | 128 | class NotebookWebApplication(web.Application): |
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128 | 129 | |
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129 | 130 | def __init__(self, ipython_app, kernel_manager, contents_manager, |
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130 | 131 | cluster_manager, session_manager, kernel_spec_manager, |
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131 | 132 | config_manager, log, |
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132 | 133 | base_url, default_url, settings_overrides, jinja_env_options): |
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133 | 134 | |
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134 | 135 | settings = self.init_settings( |
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135 | 136 | ipython_app, kernel_manager, contents_manager, cluster_manager, |
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136 | 137 | session_manager, kernel_spec_manager, config_manager, log, base_url, |
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137 | 138 | default_url, settings_overrides, jinja_env_options) |
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138 | 139 | handlers = self.init_handlers(settings) |
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139 | 140 | |
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140 | 141 | super(NotebookWebApplication, self).__init__(handlers, **settings) |
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141 | 142 | |
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142 | 143 | def init_settings(self, ipython_app, kernel_manager, contents_manager, |
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143 | 144 | cluster_manager, session_manager, kernel_spec_manager, |
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144 | 145 | config_manager, |
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145 | 146 | log, base_url, default_url, settings_overrides, |
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146 | 147 | jinja_env_options=None): |
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147 | 148 | |
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148 | 149 | _template_path = settings_overrides.get( |
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149 | 150 | "template_path", |
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150 | 151 | ipython_app.template_file_path, |
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151 | 152 | ) |
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152 | 153 | if isinstance(_template_path, str): |
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153 | 154 | _template_path = (_template_path,) |
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154 | 155 | template_path = [os.path.expanduser(path) for path in _template_path] |
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155 | 156 | |
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156 | 157 | jenv_opt = jinja_env_options if jinja_env_options else {} |
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157 | 158 | env = Environment(loader=FileSystemLoader(template_path), **jenv_opt) |
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158 | 159 | |
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159 | 160 | sys_info = get_sys_info() |
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160 | 161 | if sys_info['commit_source'] == 'repository': |
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161 | 162 | # don't cache (rely on 304) when working from master |
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162 | 163 | version_hash = '' |
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163 | 164 | else: |
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164 | 165 | # reset the cache on server restart |
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165 | 166 | version_hash = datetime.datetime.now().strftime("%Y%m%d%H%M%S") |
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166 | 167 | |
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167 | 168 | settings = dict( |
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168 | 169 | # basics |
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169 | 170 | log_function=log_request, |
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170 | 171 | base_url=base_url, |
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171 | 172 | default_url=default_url, |
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172 | 173 | template_path=template_path, |
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173 | 174 | static_path=ipython_app.static_file_path, |
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174 | 175 | static_handler_class = FileFindHandler, |
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175 | 176 | static_url_prefix = url_path_join(base_url,'/static/'), |
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176 | 177 | static_handler_args = { |
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177 | 178 | # don't cache custom.js |
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178 | 179 | 'no_cache_paths': [url_path_join(base_url, 'static', 'custom')], |
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179 | 180 | }, |
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180 | 181 | version_hash=version_hash, |
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181 | 182 | |
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182 | 183 | # authentication |
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183 | 184 | cookie_secret=ipython_app.cookie_secret, |
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184 | 185 | login_url=url_path_join(base_url,'/login'), |
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185 | 186 | login_handler_class=ipython_app.login_handler_class, |
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186 | 187 | logout_handler_class=ipython_app.logout_handler_class, |
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187 | 188 | password=ipython_app.password, |
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188 | 189 | |
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189 | 190 | # managers |
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190 | 191 | kernel_manager=kernel_manager, |
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191 | 192 | contents_manager=contents_manager, |
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192 | 193 | cluster_manager=cluster_manager, |
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193 | 194 | session_manager=session_manager, |
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194 | 195 | kernel_spec_manager=kernel_spec_manager, |
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195 | 196 | config_manager=config_manager, |
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196 | 197 | |
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197 | 198 | # IPython stuff |
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198 | 199 | nbextensions_path=ipython_app.nbextensions_path, |
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199 | 200 | websocket_url=ipython_app.websocket_url, |
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200 | 201 | mathjax_url=ipython_app.mathjax_url, |
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201 | 202 | config=ipython_app.config, |
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202 | 203 | jinja2_env=env, |
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203 | 204 | terminals_available=False, # Set later if terminals are available |
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204 | 205 | ) |
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205 | 206 | |
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206 | 207 | # allow custom overrides for the tornado web app. |
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207 | 208 | settings.update(settings_overrides) |
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208 | 209 | return settings |
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209 | 210 | |
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210 | 211 | def init_handlers(self, settings): |
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211 | 212 | """Load the (URL pattern, handler) tuples for each component.""" |
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212 | 213 | |
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213 | 214 | # Order matters. The first handler to match the URL will handle the request. |
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214 | 215 | handlers = [] |
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215 | 216 | handlers.extend(load_handlers('tree.handlers')) |
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216 | 217 | handlers.extend([(r"/login", settings['login_handler_class'])]) |
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217 | 218 | handlers.extend([(r"/logout", settings['logout_handler_class'])]) |
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218 | 219 | handlers.extend(load_handlers('files.handlers')) |
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219 | 220 | handlers.extend(load_handlers('notebook.handlers')) |
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220 | 221 | handlers.extend(load_handlers('nbconvert.handlers')) |
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221 | 222 | handlers.extend(load_handlers('kernelspecs.handlers')) |
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222 | 223 | handlers.extend(load_handlers('edit.handlers')) |
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223 | 224 | handlers.extend(load_handlers('services.config.handlers')) |
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224 | 225 | handlers.extend(load_handlers('services.kernels.handlers')) |
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225 | 226 | handlers.extend(load_handlers('services.contents.handlers')) |
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226 | 227 | handlers.extend(load_handlers('services.clusters.handlers')) |
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227 | 228 | handlers.extend(load_handlers('services.sessions.handlers')) |
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228 | 229 | handlers.extend(load_handlers('services.nbconvert.handlers')) |
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229 | 230 | handlers.extend(load_handlers('services.kernelspecs.handlers')) |
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230 | 231 | handlers.extend(load_handlers('services.security.handlers')) |
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231 | 232 | handlers.append( |
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232 | 233 | (r"/nbextensions/(.*)", FileFindHandler, { |
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233 | 234 | 'path': settings['nbextensions_path'], |
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234 | 235 | 'no_cache_paths': ['/'], # don't cache anything in nbextensions |
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235 | 236 | }), |
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236 | 237 | ) |
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237 | 238 | # register base handlers last |
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238 | 239 | handlers.extend(load_handlers('base.handlers')) |
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239 | 240 | # set the URL that will be redirected from `/` |
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240 | 241 | handlers.append( |
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241 | 242 | (r'/?', web.RedirectHandler, { |
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242 | 243 | 'url' : url_path_join(settings['base_url'], settings['default_url']), |
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243 | 244 | 'permanent': False, # want 302, not 301 |
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244 | 245 | }) |
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245 | 246 | ) |
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246 | 247 | # prepend base_url onto the patterns that we match |
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247 | 248 | new_handlers = [] |
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248 | 249 | for handler in handlers: |
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249 | 250 | pattern = url_path_join(settings['base_url'], handler[0]) |
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250 | 251 | new_handler = tuple([pattern] + list(handler[1:])) |
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251 | 252 | new_handlers.append(new_handler) |
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252 | 253 | # add 404 on the end, which will catch everything that falls through |
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253 | 254 | new_handlers.append((r'(.*)', Template404)) |
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254 | 255 | return new_handlers |
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255 | 256 | |
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256 | 257 | |
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257 | 258 | class NbserverListApp(BaseIPythonApplication): |
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258 | 259 | |
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259 | 260 | description="List currently running notebook servers in this profile." |
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260 | 261 | |
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261 | 262 | flags = dict( |
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262 | 263 | json=({'NbserverListApp': {'json': True}}, |
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263 | 264 | "Produce machine-readable JSON output."), |
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264 | 265 | ) |
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265 | 266 | |
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266 | 267 | json = Bool(False, config=True, |
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267 | 268 | help="If True, each line of output will be a JSON object with the " |
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268 | 269 | "details from the server info file.") |
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269 | 270 | |
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270 | 271 | def start(self): |
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271 | 272 | if not self.json: |
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272 | 273 | print("Currently running servers:") |
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273 | 274 | for serverinfo in list_running_servers(self.profile): |
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274 | 275 | if self.json: |
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275 | 276 | print(json.dumps(serverinfo)) |
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276 | 277 | else: |
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277 | 278 | print(serverinfo['url'], "::", serverinfo['notebook_dir']) |
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278 | 279 | |
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279 | 280 | #----------------------------------------------------------------------------- |
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280 | 281 | # Aliases and Flags |
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281 | 282 | #----------------------------------------------------------------------------- |
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282 | 283 | |
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283 | 284 | flags = dict(base_flags) |
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284 | 285 | flags['no-browser']=( |
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285 | 286 | {'NotebookApp' : {'open_browser' : False}}, |
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286 | 287 | "Don't open the notebook in a browser after startup." |
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287 | 288 | ) |
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288 | 289 | flags['pylab']=( |
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289 | 290 | {'NotebookApp' : {'pylab' : 'warn'}}, |
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290 | 291 | "DISABLED: use %pylab or %matplotlib in the notebook to enable matplotlib." |
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291 | 292 | ) |
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292 | 293 | flags['no-mathjax']=( |
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293 | 294 | {'NotebookApp' : {'enable_mathjax' : False}}, |
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294 | 295 | """Disable MathJax |
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295 | 296 | |
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296 | 297 | MathJax is the javascript library IPython uses to render math/LaTeX. It is |
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297 | 298 | very large, so you may want to disable it if you have a slow internet |
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298 | 299 | connection, or for offline use of the notebook. |
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299 | 300 | |
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300 | 301 | When disabled, equations etc. will appear as their untransformed TeX source. |
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301 | 302 | """ |
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302 | 303 | ) |
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303 | 304 | |
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304 | 305 | # Add notebook manager flags |
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305 | 306 | flags.update(boolean_flag('script', 'FileContentsManager.save_script', |
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306 | 307 | 'DEPRECATED, IGNORED', |
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307 | 308 | 'DEPRECATED, IGNORED')) |
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308 | 309 | |
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309 | 310 | aliases = dict(base_aliases) |
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310 | 311 | |
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311 | 312 | aliases.update({ |
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312 | 313 | 'ip': 'NotebookApp.ip', |
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313 | 314 | 'port': 'NotebookApp.port', |
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314 | 315 | 'port-retries': 'NotebookApp.port_retries', |
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315 | 316 | 'transport': 'KernelManager.transport', |
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316 | 317 | 'keyfile': 'NotebookApp.keyfile', |
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317 | 318 | 'certfile': 'NotebookApp.certfile', |
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318 | 319 | 'notebook-dir': 'NotebookApp.notebook_dir', |
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319 | 320 | 'browser': 'NotebookApp.browser', |
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320 | 321 | 'pylab': 'NotebookApp.pylab', |
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321 | 322 | }) |
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322 | 323 | |
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323 | 324 | #----------------------------------------------------------------------------- |
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324 | 325 | # NotebookApp |
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325 | 326 | #----------------------------------------------------------------------------- |
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326 | 327 | |
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327 | 328 | class NotebookApp(BaseIPythonApplication): |
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328 | 329 | |
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329 | 330 | name = 'ipython-notebook' |
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330 | 331 | |
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331 | 332 | description = """ |
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332 | 333 | The IPython HTML Notebook. |
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333 | 334 | |
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334 | 335 | This launches a Tornado based HTML Notebook Server that serves up an |
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335 | 336 | HTML5/Javascript Notebook client. |
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336 | 337 | """ |
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337 | 338 | examples = _examples |
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338 | 339 | aliases = aliases |
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339 | 340 | flags = flags |
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340 | 341 | |
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341 | 342 | classes = [ |
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342 | 343 | KernelManager, ProfileDir, Session, MappingKernelManager, |
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343 | 344 | ContentsManager, FileContentsManager, NotebookNotary, |
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344 | 345 | ] |
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345 | 346 | flags = Dict(flags) |
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346 | 347 | aliases = Dict(aliases) |
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347 | 348 | |
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348 | 349 | subcommands = dict( |
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349 | 350 | list=(NbserverListApp, NbserverListApp.description.splitlines()[0]), |
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350 | 351 | ) |
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351 | 352 | |
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352 | 353 | ipython_kernel_argv = List(Unicode) |
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353 | 354 | |
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354 | 355 | _log_formatter_cls = LogFormatter |
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355 | 356 | |
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356 | 357 | def _log_level_default(self): |
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357 | 358 | return logging.INFO |
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358 | 359 | |
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359 | 360 | def _log_datefmt_default(self): |
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360 | 361 | """Exclude date from default date format""" |
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361 | 362 | return "%H:%M:%S" |
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362 | 363 | |
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363 | 364 | def _log_format_default(self): |
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364 | 365 | """override default log format to include time""" |
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365 | 366 | return u"%(color)s[%(levelname)1.1s %(asctime)s.%(msecs).03d %(name)s]%(end_color)s %(message)s" |
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366 | 367 | |
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367 | 368 | # create requested profiles by default, if they don't exist: |
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368 | 369 | auto_create = Bool(True) |
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369 | 370 | |
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370 | 371 | # file to be opened in the notebook server |
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371 | 372 | file_to_run = Unicode('', config=True) |
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372 | 373 | |
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373 | 374 | # Network related information |
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374 | 375 | |
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375 | 376 | allow_origin = Unicode('', config=True, |
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376 | 377 | help="""Set the Access-Control-Allow-Origin header |
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377 | 378 | |
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378 | 379 | Use '*' to allow any origin to access your server. |
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379 | 380 | |
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380 | 381 | Takes precedence over allow_origin_pat. |
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381 | 382 | """ |
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382 | 383 | ) |
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383 | 384 | |
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384 | 385 | allow_origin_pat = Unicode('', config=True, |
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385 | 386 | help="""Use a regular expression for the Access-Control-Allow-Origin header |
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386 | 387 | |
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387 | 388 | Requests from an origin matching the expression will get replies with: |
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388 | 389 | |
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389 | 390 | Access-Control-Allow-Origin: origin |
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390 | 391 | |
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391 | 392 | where `origin` is the origin of the request. |
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392 | 393 | |
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393 | 394 | Ignored if allow_origin is set. |
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394 | 395 | """ |
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395 | 396 | ) |
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396 | 397 | |
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397 | 398 | allow_credentials = Bool(False, config=True, |
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398 | 399 | help="Set the Access-Control-Allow-Credentials: true header" |
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399 | 400 | ) |
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400 | 401 | |
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401 | 402 | default_url = Unicode('/tree', config=True, |
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402 | 403 | help="The default URL to redirect to from `/`" |
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403 | 404 | ) |
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404 | 405 | |
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405 | 406 | ip = Unicode('localhost', config=True, |
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406 | 407 | help="The IP address the notebook server will listen on." |
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407 | 408 | ) |
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408 | 409 | |
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409 | 410 | def _ip_changed(self, name, old, new): |
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410 | 411 | if new == u'*': self.ip = u'' |
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411 | 412 | |
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412 | 413 | port = Integer(8888, config=True, |
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413 | 414 | help="The port the notebook server will listen on." |
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414 | 415 | ) |
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415 | 416 | port_retries = Integer(50, config=True, |
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416 | 417 | help="The number of additional ports to try if the specified port is not available." |
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417 | 418 | ) |
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418 | 419 | |
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419 | 420 | certfile = Unicode(u'', config=True, |
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420 | 421 | help="""The full path to an SSL/TLS certificate file.""" |
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421 | 422 | ) |
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422 | 423 | |
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423 | 424 | keyfile = Unicode(u'', config=True, |
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424 | 425 | help="""The full path to a private key file for usage with SSL/TLS.""" |
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425 | 426 | ) |
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426 | 427 | |
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427 | 428 | cookie_secret_file = Unicode(config=True, |
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428 | 429 | help="""The file where the cookie secret is stored.""" |
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429 | 430 | ) |
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430 | 431 | def _cookie_secret_file_default(self): |
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431 | 432 | if self.profile_dir is None: |
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432 | 433 | return '' |
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433 | 434 | return os.path.join(self.profile_dir.security_dir, 'notebook_cookie_secret') |
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434 | 435 | |
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435 | 436 | cookie_secret = Bytes(b'', config=True, |
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436 | 437 | help="""The random bytes used to secure cookies. |
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437 | 438 | By default this is a new random number every time you start the Notebook. |
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438 | 439 | Set it to a value in a config file to enable logins to persist across server sessions. |
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439 | 440 | |
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440 | 441 | Note: Cookie secrets should be kept private, do not share config files with |
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441 | 442 | cookie_secret stored in plaintext (you can read the value from a file). |
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442 | 443 | """ |
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443 | 444 | ) |
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444 | 445 | def _cookie_secret_default(self): |
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445 | 446 | if os.path.exists(self.cookie_secret_file): |
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446 | 447 | with io.open(self.cookie_secret_file, 'rb') as f: |
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447 | 448 | return f.read() |
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448 | 449 | else: |
|
449 | 450 | secret = base64.encodestring(os.urandom(1024)) |
|
450 | 451 | self._write_cookie_secret_file(secret) |
|
451 | 452 | return secret |
|
452 | 453 | |
|
453 | 454 | def _write_cookie_secret_file(self, secret): |
|
454 | 455 | """write my secret to my secret_file""" |
|
455 | 456 | self.log.info("Writing notebook server cookie secret to %s", self.cookie_secret_file) |
|
456 | 457 | with io.open(self.cookie_secret_file, 'wb') as f: |
|
457 | 458 | f.write(secret) |
|
458 | 459 | try: |
|
459 | 460 | os.chmod(self.cookie_secret_file, 0o600) |
|
460 | 461 | except OSError: |
|
461 | 462 | self.log.warn( |
|
462 | 463 | "Could not set permissions on %s", |
|
463 | 464 | self.cookie_secret_file |
|
464 | 465 | ) |
|
465 | 466 | |
|
466 | 467 | password = Unicode(u'', config=True, |
|
467 | 468 | help="""Hashed password to use for web authentication. |
|
468 | 469 | |
|
469 | 470 | To generate, type in a python/IPython shell: |
|
470 | 471 | |
|
471 | 472 | from IPython.lib import passwd; passwd() |
|
472 | 473 | |
|
473 | 474 | The string should be of the form type:salt:hashed-password. |
|
474 | 475 | """ |
|
475 | 476 | ) |
|
476 | 477 | |
|
477 | 478 | open_browser = Bool(True, config=True, |
|
478 | 479 | help="""Whether to open in a browser after starting. |
|
479 | 480 | The specific browser used is platform dependent and |
|
480 | 481 | determined by the python standard library `webbrowser` |
|
481 | 482 | module, unless it is overridden using the --browser |
|
482 | 483 | (NotebookApp.browser) configuration option. |
|
483 | 484 | """) |
|
484 | 485 | |
|
485 | 486 | browser = Unicode(u'', config=True, |
|
486 | 487 | help="""Specify what command to use to invoke a web |
|
487 | 488 | browser when opening the notebook. If not specified, the |
|
488 | 489 | default browser will be determined by the `webbrowser` |
|
489 | 490 | standard library module, which allows setting of the |
|
490 | 491 | BROWSER environment variable to override it. |
|
491 | 492 | """) |
|
492 | 493 | |
|
493 | 494 | webapp_settings = Dict(config=True, |
|
494 | 495 | help="DEPRECATED, use tornado_settings" |
|
495 | 496 | ) |
|
496 | 497 | def _webapp_settings_changed(self, name, old, new): |
|
497 | 498 | self.log.warn("\n webapp_settings is deprecated, use tornado_settings.\n") |
|
498 | 499 | self.tornado_settings = new |
|
499 | 500 | |
|
500 | 501 | tornado_settings = Dict(config=True, |
|
501 | 502 | help="Supply overrides for the tornado.web.Application that the " |
|
502 | 503 | "IPython notebook uses.") |
|
503 | 504 | |
|
504 | 505 | jinja_environment_options = Dict(config=True, |
|
505 | 506 | help="Supply extra arguments that will be passed to Jinja environment.") |
|
506 | 507 | |
|
507 | 508 | enable_mathjax = Bool(True, config=True, |
|
508 | 509 | help="""Whether to enable MathJax for typesetting math/TeX |
|
509 | 510 | |
|
510 | 511 | MathJax is the javascript library IPython uses to render math/LaTeX. It is |
|
511 | 512 | very large, so you may want to disable it if you have a slow internet |
|
512 | 513 | connection, or for offline use of the notebook. |
|
513 | 514 | |
|
514 | 515 | When disabled, equations etc. will appear as their untransformed TeX source. |
|
515 | 516 | """ |
|
516 | 517 | ) |
|
517 | 518 | def _enable_mathjax_changed(self, name, old, new): |
|
518 | 519 | """set mathjax url to empty if mathjax is disabled""" |
|
519 | 520 | if not new: |
|
520 | 521 | self.mathjax_url = u'' |
|
521 | 522 | |
|
522 | 523 | base_url = Unicode('/', config=True, |
|
523 | 524 | help='''The base URL for the notebook server. |
|
524 | 525 | |
|
525 | 526 | Leading and trailing slashes can be omitted, |
|
526 | 527 | and will automatically be added. |
|
527 | 528 | ''') |
|
528 | 529 | def _base_url_changed(self, name, old, new): |
|
529 | 530 | if not new.startswith('/'): |
|
530 | 531 | self.base_url = '/'+new |
|
531 | 532 | elif not new.endswith('/'): |
|
532 | 533 | self.base_url = new+'/' |
|
533 | 534 | |
|
534 | 535 | base_project_url = Unicode('/', config=True, help="""DEPRECATED use base_url""") |
|
535 | 536 | def _base_project_url_changed(self, name, old, new): |
|
536 | 537 | self.log.warn("base_project_url is deprecated, use base_url") |
|
537 | 538 | self.base_url = new |
|
538 | 539 | |
|
539 | 540 | extra_static_paths = List(Unicode, config=True, |
|
540 | 541 | help="""Extra paths to search for serving static files. |
|
541 | 542 | |
|
542 | 543 | This allows adding javascript/css to be available from the notebook server machine, |
|
543 | 544 | or overriding individual files in the IPython""" |
|
544 | 545 | ) |
|
545 | 546 | def _extra_static_paths_default(self): |
|
546 | 547 | return [os.path.join(self.profile_dir.location, 'static')] |
|
547 | 548 | |
|
548 | 549 | @property |
|
549 | 550 | def static_file_path(self): |
|
550 | 551 | """return extra paths + the default location""" |
|
551 | 552 | return self.extra_static_paths + [DEFAULT_STATIC_FILES_PATH] |
|
552 | 553 | |
|
553 | 554 | extra_template_paths = List(Unicode, config=True, |
|
554 | 555 | help="""Extra paths to search for serving jinja templates. |
|
555 | 556 | |
|
556 | 557 | Can be used to override templates from IPython.html.templates.""" |
|
557 | 558 | ) |
|
558 | 559 | def _extra_template_paths_default(self): |
|
559 | 560 | return [] |
|
560 | 561 | |
|
561 | 562 | @property |
|
562 | 563 | def template_file_path(self): |
|
563 | 564 | """return extra paths + the default locations""" |
|
564 | 565 | return self.extra_template_paths + DEFAULT_TEMPLATE_PATH_LIST |
|
565 | 566 | |
|
566 | 567 | nbextensions_path = List(Unicode, config=True, |
|
567 | 568 | help="""paths for Javascript extensions. By default, this is just IPYTHONDIR/nbextensions""" |
|
568 | 569 | ) |
|
569 | 570 | def _nbextensions_path_default(self): |
|
570 | 571 | return [os.path.join(get_ipython_dir(), 'nbextensions')] |
|
571 | 572 | |
|
572 | 573 | websocket_url = Unicode("", config=True, |
|
573 | 574 | help="""The base URL for websockets, |
|
574 | 575 | if it differs from the HTTP server (hint: it almost certainly doesn't). |
|
575 | 576 | |
|
576 | 577 | Should be in the form of an HTTP origin: ws[s]://hostname[:port] |
|
577 | 578 | """ |
|
578 | 579 | ) |
|
579 | 580 | mathjax_url = Unicode("", config=True, |
|
580 | 581 | help="""The url for MathJax.js.""" |
|
581 | 582 | ) |
|
582 | 583 | def _mathjax_url_default(self): |
|
583 | 584 | if not self.enable_mathjax: |
|
584 | 585 | return u'' |
|
585 | 586 | static_url_prefix = self.tornado_settings.get("static_url_prefix", |
|
586 | 587 | url_path_join(self.base_url, "static") |
|
587 | 588 | ) |
|
588 | 589 | |
|
589 | 590 | # try local mathjax, either in nbextensions/mathjax or static/mathjax |
|
590 | 591 | for (url_prefix, search_path) in [ |
|
591 | 592 | (url_path_join(self.base_url, "nbextensions"), self.nbextensions_path), |
|
592 | 593 | (static_url_prefix, self.static_file_path), |
|
593 | 594 | ]: |
|
594 | 595 | self.log.debug("searching for local mathjax in %s", search_path) |
|
595 | 596 | try: |
|
596 | 597 | mathjax = filefind(os.path.join('mathjax', 'MathJax.js'), search_path) |
|
597 | 598 | except IOError: |
|
598 | 599 | continue |
|
599 | 600 | else: |
|
600 | 601 | url = url_path_join(url_prefix, u"mathjax/MathJax.js") |
|
601 | 602 | self.log.info("Serving local MathJax from %s at %s", mathjax, url) |
|
602 | 603 | return url |
|
603 | 604 | |
|
604 | 605 | # no local mathjax, serve from CDN |
|
605 | 606 | url = u"https://cdn.mathjax.org/mathjax/latest/MathJax.js" |
|
606 | 607 | self.log.info("Using MathJax from CDN: %s", url) |
|
607 | 608 | return url |
|
608 | 609 | |
|
609 | 610 | def _mathjax_url_changed(self, name, old, new): |
|
610 | 611 | if new and not self.enable_mathjax: |
|
611 | 612 | # enable_mathjax=False overrides mathjax_url |
|
612 | 613 | self.mathjax_url = u'' |
|
613 | 614 | else: |
|
614 | 615 | self.log.info("Using MathJax: %s", new) |
|
615 | 616 | |
|
616 | 617 | contents_manager_class = DottedObjectName('IPython.html.services.contents.filemanager.FileContentsManager', |
|
617 | 618 | config=True, |
|
618 | 619 | help='The notebook manager class to use.' |
|
619 | 620 | ) |
|
620 | 621 | kernel_manager_class = DottedObjectName('IPython.html.services.kernels.kernelmanager.MappingKernelManager', |
|
621 | 622 | config=True, |
|
622 | 623 | help='The kernel manager class to use.' |
|
623 | 624 | ) |
|
624 | 625 | session_manager_class = DottedObjectName('IPython.html.services.sessions.sessionmanager.SessionManager', |
|
625 | 626 | config=True, |
|
626 | 627 | help='The session manager class to use.' |
|
627 | 628 | ) |
|
628 | 629 | cluster_manager_class = DottedObjectName('IPython.html.services.clusters.clustermanager.ClusterManager', |
|
629 | 630 | config=True, |
|
630 | 631 | help='The cluster manager class to use.' |
|
631 | 632 | ) |
|
632 | 633 | |
|
633 | 634 | config_manager_class = DottedObjectName('IPython.html.services.config.manager.ConfigManager', |
|
634 | 635 | config = True, |
|
635 | 636 | help='The config manager class to use' |
|
636 | 637 | ) |
|
637 | 638 | |
|
638 | 639 | kernel_spec_manager = Instance(KernelSpecManager) |
|
639 | 640 | |
|
640 | 641 | def _kernel_spec_manager_default(self): |
|
641 | 642 | return KernelSpecManager(ipython_dir=self.ipython_dir) |
|
642 | 643 | |
|
643 | 644 | kernel_spec_manager_class = DottedObjectName('IPython.kernel.kernelspec.KernelSpecManager', |
|
644 | 645 | config=True, |
|
645 | 646 | help=""" |
|
646 | 647 | The kernel spec manager class to use. Should be a subclass |
|
647 | 648 | of `IPython.kernel.kernelspec.KernelSpecManager`. |
|
648 | 649 | |
|
649 | 650 | The Api of KernelSpecManager is provisional and might change |
|
650 | 651 | without warning between this version of IPython and the next stable one. |
|
651 | 652 | """) |
|
652 | 653 | |
|
653 | 654 | login_handler = DottedObjectName('IPython.html.auth.login.LoginHandler', |
|
654 | 655 | config=True, |
|
655 | 656 | help='The login handler class to use.') |
|
656 | 657 | |
|
657 | 658 | logout_handler = DottedObjectName('IPython.html.auth.logout.LogoutHandler', |
|
658 | 659 | config=True, |
|
659 | 660 | help='The logout handler class to use.') |
|
660 | 661 | |
|
661 | 662 | trust_xheaders = Bool(False, config=True, |
|
662 | 663 | help=("Whether to trust or not X-Scheme/X-Forwarded-Proto and X-Real-Ip/X-Forwarded-For headers" |
|
663 | 664 | "sent by the upstream reverse proxy. Necessary if the proxy handles SSL") |
|
664 | 665 | ) |
|
665 | 666 | |
|
666 | 667 | info_file = Unicode() |
|
667 | 668 | |
|
668 | 669 | def _info_file_default(self): |
|
669 | 670 | info_file = "nbserver-%s.json"%os.getpid() |
|
670 | 671 | return os.path.join(self.profile_dir.security_dir, info_file) |
|
671 | 672 | |
|
672 | 673 | pylab = Unicode('disabled', config=True, |
|
673 | 674 | help=""" |
|
674 | 675 | DISABLED: use %pylab or %matplotlib in the notebook to enable matplotlib. |
|
675 | 676 | """ |
|
676 | 677 | ) |
|
677 | 678 | def _pylab_changed(self, name, old, new): |
|
678 | 679 | """when --pylab is specified, display a warning and exit""" |
|
679 | 680 | if new != 'warn': |
|
680 | 681 | backend = ' %s' % new |
|
681 | 682 | else: |
|
682 | 683 | backend = '' |
|
683 | 684 | self.log.error("Support for specifying --pylab on the command line has been removed.") |
|
684 | 685 | self.log.error( |
|
685 | 686 | "Please use `%pylab{0}` or `%matplotlib{0}` in the notebook itself.".format(backend) |
|
686 | 687 | ) |
|
687 | 688 | self.exit(1) |
|
688 | 689 | |
|
689 | 690 | notebook_dir = Unicode(config=True, |
|
690 | 691 | help="The directory to use for notebooks and kernels." |
|
691 | 692 | ) |
|
692 | 693 | |
|
693 | 694 | def _notebook_dir_default(self): |
|
694 | 695 | if self.file_to_run: |
|
695 | 696 | return os.path.dirname(os.path.abspath(self.file_to_run)) |
|
696 | 697 | else: |
|
697 | 698 | return py3compat.getcwd() |
|
698 | 699 | |
|
699 | 700 | def _notebook_dir_changed(self, name, old, new): |
|
700 | 701 | """Do a bit of validation of the notebook dir.""" |
|
701 | 702 | if not os.path.isabs(new): |
|
702 | 703 | # If we receive a non-absolute path, make it absolute. |
|
703 | 704 | self.notebook_dir = os.path.abspath(new) |
|
704 | 705 | return |
|
705 | 706 | if not os.path.isdir(new): |
|
706 | 707 | raise TraitError("No such notebook dir: %r" % new) |
|
707 | 708 | |
|
708 | 709 | # setting App.notebook_dir implies setting notebook and kernel dirs as well |
|
709 | 710 | self.config.FileContentsManager.root_dir = new |
|
710 | 711 | self.config.MappingKernelManager.root_dir = new |
|
711 | 712 | |
|
713 | server_extensions = List(Unicode(), config=True, | |
|
714 | help=("Python modules to load as notebook server extensions. " | |
|
715 | "This is an experimental API, and may change in future releases.") | |
|
716 | ) | |
|
717 | ||
|
712 | 718 | def parse_command_line(self, argv=None): |
|
713 | 719 | super(NotebookApp, self).parse_command_line(argv) |
|
714 | 720 | |
|
715 | 721 | if self.extra_args: |
|
716 | 722 | arg0 = self.extra_args[0] |
|
717 | 723 | f = os.path.abspath(arg0) |
|
718 | 724 | self.argv.remove(arg0) |
|
719 | 725 | if not os.path.exists(f): |
|
720 | 726 | self.log.critical("No such file or directory: %s", f) |
|
721 | 727 | self.exit(1) |
|
722 | 728 | |
|
723 | 729 | # Use config here, to ensure that it takes higher priority than |
|
724 | 730 | # anything that comes from the profile. |
|
725 | 731 | c = Config() |
|
726 | 732 | if os.path.isdir(f): |
|
727 | 733 | c.NotebookApp.notebook_dir = f |
|
728 | 734 | elif os.path.isfile(f): |
|
729 | 735 | c.NotebookApp.file_to_run = f |
|
730 | 736 | self.update_config(c) |
|
731 | 737 | |
|
732 | 738 | def init_kernel_argv(self): |
|
733 | 739 | """add the profile-dir to arguments to be passed to IPython kernels""" |
|
734 | 740 | # FIXME: remove special treatment of IPython kernels |
|
735 | 741 | # Kernel should get *absolute* path to profile directory |
|
736 | 742 | self.ipython_kernel_argv = ["--profile-dir", self.profile_dir.location] |
|
737 | 743 | |
|
738 | 744 | def init_configurables(self): |
|
739 | 745 | # force Session default to be secure |
|
740 | 746 | default_secure(self.config) |
|
741 | 747 | kls = import_item(self.kernel_spec_manager_class) |
|
742 | 748 | self.kernel_spec_manager = kls(ipython_dir=self.ipython_dir) |
|
743 | 749 | |
|
744 | 750 | kls = import_item(self.kernel_manager_class) |
|
745 | 751 | self.kernel_manager = kls( |
|
746 | 752 | parent=self, log=self.log, ipython_kernel_argv=self.ipython_kernel_argv, |
|
747 | 753 | connection_dir = self.profile_dir.security_dir, |
|
748 | 754 | ) |
|
749 | 755 | kls = import_item(self.contents_manager_class) |
|
750 | 756 | self.contents_manager = kls(parent=self, log=self.log) |
|
751 | 757 | kls = import_item(self.session_manager_class) |
|
752 | 758 | self.session_manager = kls(parent=self, log=self.log, |
|
753 | 759 | kernel_manager=self.kernel_manager, |
|
754 | 760 | contents_manager=self.contents_manager) |
|
755 | 761 | kls = import_item(self.cluster_manager_class) |
|
756 | 762 | self.cluster_manager = kls(parent=self, log=self.log) |
|
757 | 763 | self.cluster_manager.update_profiles() |
|
758 | 764 | self.login_handler_class = import_item(self.login_handler) |
|
759 | 765 | self.logout_handler_class = import_item(self.logout_handler) |
|
760 | 766 | |
|
761 | 767 | kls = import_item(self.config_manager_class) |
|
762 | 768 | self.config_manager = kls(parent=self, log=self.log, |
|
763 | 769 | profile_dir=self.profile_dir.location) |
|
764 | 770 | |
|
765 | 771 | def init_logging(self): |
|
766 | 772 | # This prevents double log messages because tornado use a root logger that |
|
767 | 773 | # self.log is a child of. The logging module dipatches log messages to a log |
|
768 | 774 | # and all of its ancenstors until propagate is set to False. |
|
769 | 775 | self.log.propagate = False |
|
770 | 776 | |
|
771 | 777 | for log in app_log, access_log, gen_log: |
|
772 | 778 | # consistent log output name (NotebookApp instead of tornado.access, etc.) |
|
773 | 779 | log.name = self.log.name |
|
774 | 780 | # hook up tornado 3's loggers to our app handlers |
|
775 | 781 | logger = logging.getLogger('tornado') |
|
776 | 782 | logger.propagate = True |
|
777 | 783 | logger.parent = self.log |
|
778 | 784 | logger.setLevel(self.log.level) |
|
779 | 785 | |
|
780 | 786 | def init_webapp(self): |
|
781 | 787 | """initialize tornado webapp and httpserver""" |
|
782 | 788 | self.tornado_settings['allow_origin'] = self.allow_origin |
|
783 | 789 | if self.allow_origin_pat: |
|
784 | 790 | self.tornado_settings['allow_origin_pat'] = re.compile(self.allow_origin_pat) |
|
785 | 791 | self.tornado_settings['allow_credentials'] = self.allow_credentials |
|
786 | 792 | |
|
787 | 793 | self.web_app = NotebookWebApplication( |
|
788 | 794 | self, self.kernel_manager, self.contents_manager, |
|
789 | 795 | self.cluster_manager, self.session_manager, self.kernel_spec_manager, |
|
790 | 796 | self.config_manager, |
|
791 | 797 | self.log, self.base_url, self.default_url, self.tornado_settings, |
|
792 | 798 | self.jinja_environment_options |
|
793 | 799 | ) |
|
794 | 800 | if self.certfile: |
|
795 | 801 | ssl_options = dict(certfile=self.certfile) |
|
796 | 802 | if self.keyfile: |
|
797 | 803 | ssl_options['keyfile'] = self.keyfile |
|
798 | 804 | else: |
|
799 | 805 | ssl_options = None |
|
800 | 806 | self.login_handler_class.validate_security(self, ssl_options=ssl_options) |
|
801 | 807 | self.http_server = httpserver.HTTPServer(self.web_app, ssl_options=ssl_options, |
|
802 | 808 | xheaders=self.trust_xheaders) |
|
803 | 809 | |
|
804 | 810 | success = None |
|
805 | 811 | for port in random_ports(self.port, self.port_retries+1): |
|
806 | 812 | try: |
|
807 | 813 | self.http_server.listen(port, self.ip) |
|
808 | 814 | except socket.error as e: |
|
809 | 815 | if e.errno == errno.EADDRINUSE: |
|
810 | 816 | self.log.info('The port %i is already in use, trying another random port.' % port) |
|
811 | 817 | continue |
|
812 | 818 | elif e.errno in (errno.EACCES, getattr(errno, 'WSAEACCES', errno.EACCES)): |
|
813 | 819 | self.log.warn("Permission to listen on port %i denied" % port) |
|
814 | 820 | continue |
|
815 | 821 | else: |
|
816 | 822 | raise |
|
817 | 823 | else: |
|
818 | 824 | self.port = port |
|
819 | 825 | success = True |
|
820 | 826 | break |
|
821 | 827 | if not success: |
|
822 | 828 | self.log.critical('ERROR: the notebook server could not be started because ' |
|
823 | 829 | 'no available port could be found.') |
|
824 | 830 | self.exit(1) |
|
825 | 831 | |
|
826 | 832 | @property |
|
827 | 833 | def display_url(self): |
|
828 | 834 | ip = self.ip if self.ip else '[all ip addresses on your system]' |
|
829 | 835 | return self._url(ip) |
|
830 | 836 | |
|
831 | 837 | @property |
|
832 | 838 | def connection_url(self): |
|
833 | 839 | ip = self.ip if self.ip else 'localhost' |
|
834 | 840 | return self._url(ip) |
|
835 | 841 | |
|
836 | 842 | def _url(self, ip): |
|
837 | 843 | proto = 'https' if self.certfile else 'http' |
|
838 | 844 | return "%s://%s:%i%s" % (proto, ip, self.port, self.base_url) |
|
839 | 845 | |
|
840 | 846 | def init_terminals(self): |
|
841 | 847 | try: |
|
842 | 848 | from .terminal import initialize |
|
843 | 849 | initialize(self.web_app) |
|
844 | 850 | self.web_app.settings['terminals_available'] = True |
|
845 | 851 | except ImportError as e: |
|
846 | 852 | self.log.info("Terminals not available (error was %s)", e) |
|
847 | 853 | |
|
848 | 854 | def init_signal(self): |
|
849 | 855 | if not sys.platform.startswith('win'): |
|
850 | 856 | signal.signal(signal.SIGINT, self._handle_sigint) |
|
851 | 857 | signal.signal(signal.SIGTERM, self._signal_stop) |
|
852 | 858 | if hasattr(signal, 'SIGUSR1'): |
|
853 | 859 | # Windows doesn't support SIGUSR1 |
|
854 | 860 | signal.signal(signal.SIGUSR1, self._signal_info) |
|
855 | 861 | if hasattr(signal, 'SIGINFO'): |
|
856 | 862 | # only on BSD-based systems |
|
857 | 863 | signal.signal(signal.SIGINFO, self._signal_info) |
|
858 | 864 | |
|
859 | 865 | def _handle_sigint(self, sig, frame): |
|
860 | 866 | """SIGINT handler spawns confirmation dialog""" |
|
861 | 867 | # register more forceful signal handler for ^C^C case |
|
862 | 868 | signal.signal(signal.SIGINT, self._signal_stop) |
|
863 | 869 | # request confirmation dialog in bg thread, to avoid |
|
864 | 870 | # blocking the App |
|
865 | 871 | thread = threading.Thread(target=self._confirm_exit) |
|
866 | 872 | thread.daemon = True |
|
867 | 873 | thread.start() |
|
868 | 874 | |
|
869 | 875 | def _restore_sigint_handler(self): |
|
870 | 876 | """callback for restoring original SIGINT handler""" |
|
871 | 877 | signal.signal(signal.SIGINT, self._handle_sigint) |
|
872 | 878 | |
|
873 | 879 | def _confirm_exit(self): |
|
874 | 880 | """confirm shutdown on ^C |
|
875 | 881 | |
|
876 | 882 | A second ^C, or answering 'y' within 5s will cause shutdown, |
|
877 | 883 | otherwise original SIGINT handler will be restored. |
|
878 | 884 | |
|
879 | 885 | This doesn't work on Windows. |
|
880 | 886 | """ |
|
881 | 887 | info = self.log.info |
|
882 | 888 | info('interrupted') |
|
883 | 889 | print(self.notebook_info()) |
|
884 | 890 | sys.stdout.write("Shutdown this notebook server (y/[n])? ") |
|
885 | 891 | sys.stdout.flush() |
|
886 | 892 | r,w,x = select.select([sys.stdin], [], [], 5) |
|
887 | 893 | if r: |
|
888 | 894 | line = sys.stdin.readline() |
|
889 | 895 | if line.lower().startswith('y') and 'n' not in line.lower(): |
|
890 | 896 | self.log.critical("Shutdown confirmed") |
|
891 | 897 | ioloop.IOLoop.current().stop() |
|
892 | 898 | return |
|
893 | 899 | else: |
|
894 | 900 | print("No answer for 5s:", end=' ') |
|
895 | 901 | print("resuming operation...") |
|
896 | 902 | # no answer, or answer is no: |
|
897 | 903 | # set it back to original SIGINT handler |
|
898 | 904 | # use IOLoop.add_callback because signal.signal must be called |
|
899 | 905 | # from main thread |
|
900 | 906 | ioloop.IOLoop.current().add_callback(self._restore_sigint_handler) |
|
901 | 907 | |
|
902 | 908 | def _signal_stop(self, sig, frame): |
|
903 | 909 | self.log.critical("received signal %s, stopping", sig) |
|
904 | 910 | ioloop.IOLoop.current().stop() |
|
905 | 911 | |
|
906 | 912 | def _signal_info(self, sig, frame): |
|
907 | 913 | print(self.notebook_info()) |
|
908 | 914 | |
|
909 | 915 | def init_components(self): |
|
910 | 916 | """Check the components submodule, and warn if it's unclean""" |
|
911 | 917 | status = submodule.check_submodule_status() |
|
912 | 918 | if status == 'missing': |
|
913 | 919 | self.log.warn("components submodule missing, running `git submodule update`") |
|
914 | 920 | submodule.update_submodules(submodule.ipython_parent()) |
|
915 | 921 | elif status == 'unclean': |
|
916 | 922 | self.log.warn("components submodule unclean, you may see 404s on static/components") |
|
917 | 923 | self.log.warn("run `setup.py submodule` or `git submodule update` to update") |
|
918 | 924 | |
|
925 | def init_server_extensions(self): | |
|
926 | """Load any extensions specified by config. | |
|
927 | ||
|
928 | Import the module, then call the load_jupyter_server_extension function, | |
|
929 | if one exists. | |
|
930 | ||
|
931 | The extension API is experimental, and may change in future releases. | |
|
932 | """ | |
|
933 | for modulename in self.server_extensions: | |
|
934 | try: | |
|
935 | mod = importlib.import_module(modulename) | |
|
936 | func = getattr(mod, 'load_jupyter_server_extension', None) | |
|
937 | if func is not None: | |
|
938 | func(self) | |
|
939 | except Exception: | |
|
940 | self.log.warn("Error loading server extension %s", modulename, | |
|
941 | exc_info=True) | |
|
942 | ||
|
919 | 943 | @catch_config_error |
|
920 | 944 | def initialize(self, argv=None): |
|
921 | 945 | super(NotebookApp, self).initialize(argv) |
|
922 | 946 | self.init_logging() |
|
923 | 947 | self.init_kernel_argv() |
|
924 | 948 | self.init_configurables() |
|
925 | 949 | self.init_components() |
|
926 | 950 | self.init_webapp() |
|
927 | 951 | self.init_terminals() |
|
928 | 952 | self.init_signal() |
|
953 | self.init_server_extensions() | |
|
929 | 954 | |
|
930 | 955 | def cleanup_kernels(self): |
|
931 | 956 | """Shutdown all kernels. |
|
932 | 957 | |
|
933 | 958 | The kernels will shutdown themselves when this process no longer exists, |
|
934 | 959 | but explicit shutdown allows the KernelManagers to cleanup the connection files. |
|
935 | 960 | """ |
|
936 | 961 | self.log.info('Shutting down kernels') |
|
937 | 962 | self.kernel_manager.shutdown_all() |
|
938 | 963 | |
|
939 | 964 | def notebook_info(self): |
|
940 | 965 | "Return the current working directory and the server url information" |
|
941 | 966 | info = self.contents_manager.info_string() + "\n" |
|
942 | 967 | info += "%d active kernels \n" % len(self.kernel_manager._kernels) |
|
943 | 968 | return info + "The IPython Notebook is running at: %s" % self.display_url |
|
944 | 969 | |
|
945 | 970 | def server_info(self): |
|
946 | 971 | """Return a JSONable dict of information about this server.""" |
|
947 | 972 | return {'url': self.connection_url, |
|
948 | 973 | 'hostname': self.ip if self.ip else 'localhost', |
|
949 | 974 | 'port': self.port, |
|
950 | 975 | 'secure': bool(self.certfile), |
|
951 | 976 | 'base_url': self.base_url, |
|
952 | 977 | 'notebook_dir': os.path.abspath(self.notebook_dir), |
|
953 | 978 | 'pid': os.getpid() |
|
954 | 979 | } |
|
955 | 980 | |
|
956 | 981 | def write_server_info_file(self): |
|
957 | 982 | """Write the result of server_info() to the JSON file info_file.""" |
|
958 | 983 | with open(self.info_file, 'w') as f: |
|
959 | 984 | json.dump(self.server_info(), f, indent=2) |
|
960 | 985 | |
|
961 | 986 | def remove_server_info_file(self): |
|
962 | 987 | """Remove the nbserver-<pid>.json file created for this server. |
|
963 | 988 | |
|
964 | 989 | Ignores the error raised when the file has already been removed. |
|
965 | 990 | """ |
|
966 | 991 | try: |
|
967 | 992 | os.unlink(self.info_file) |
|
968 | 993 | except OSError as e: |
|
969 | 994 | if e.errno != errno.ENOENT: |
|
970 | 995 | raise |
|
971 | 996 | |
|
972 | 997 | def start(self): |
|
973 | 998 | """ Start the IPython Notebook server app, after initialization |
|
974 | 999 | |
|
975 | 1000 | This method takes no arguments so all configuration and initialization |
|
976 | 1001 | must be done prior to calling this method.""" |
|
977 | 1002 | if self.subapp is not None: |
|
978 | 1003 | return self.subapp.start() |
|
979 | 1004 | |
|
980 | 1005 | info = self.log.info |
|
981 | 1006 | for line in self.notebook_info().split("\n"): |
|
982 | 1007 | info(line) |
|
983 | 1008 | info("Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).") |
|
984 | 1009 | |
|
985 | 1010 | self.write_server_info_file() |
|
986 | 1011 | |
|
987 | 1012 | if self.open_browser or self.file_to_run: |
|
988 | 1013 | try: |
|
989 | 1014 | browser = webbrowser.get(self.browser or None) |
|
990 | 1015 | except webbrowser.Error as e: |
|
991 | 1016 | self.log.warn('No web browser found: %s.' % e) |
|
992 | 1017 | browser = None |
|
993 | 1018 | |
|
994 | 1019 | if self.file_to_run: |
|
995 | 1020 | if not os.path.exists(self.file_to_run): |
|
996 | 1021 | self.log.critical("%s does not exist" % self.file_to_run) |
|
997 | 1022 | self.exit(1) |
|
998 | 1023 | |
|
999 | 1024 | relpath = os.path.relpath(self.file_to_run, self.notebook_dir) |
|
1000 | 1025 | uri = url_path_join('notebooks', *relpath.split(os.sep)) |
|
1001 | 1026 | else: |
|
1002 | 1027 | uri = 'tree' |
|
1003 | 1028 | if browser: |
|
1004 | 1029 | b = lambda : browser.open(url_path_join(self.connection_url, uri), |
|
1005 | 1030 | new=2) |
|
1006 | 1031 | threading.Thread(target=b).start() |
|
1007 | 1032 | |
|
1008 | 1033 | self.io_loop = ioloop.IOLoop.current() |
|
1009 | 1034 | try: |
|
1010 | 1035 | self.io_loop.start() |
|
1011 | 1036 | except KeyboardInterrupt: |
|
1012 | 1037 | info("Interrupted...") |
|
1013 | 1038 | finally: |
|
1014 | 1039 | self.cleanup_kernels() |
|
1015 | 1040 | self.remove_server_info_file() |
|
1016 | 1041 | |
|
1017 | 1042 | def stop(self): |
|
1018 | 1043 | def _stop(): |
|
1019 | 1044 | self.http_server.stop() |
|
1020 | 1045 | self.io_loop.stop() |
|
1021 | 1046 | self.io_loop.add_callback(_stop) |
|
1022 | 1047 | |
|
1023 | 1048 | |
|
1024 | 1049 | def list_running_servers(profile='default'): |
|
1025 | 1050 | """Iterate over the server info files of running notebook servers. |
|
1026 | 1051 | |
|
1027 | 1052 | Given a profile name, find nbserver-* files in the security directory of |
|
1028 | 1053 | that profile, and yield dicts of their information, each one pertaining to |
|
1029 | 1054 | a currently running notebook server instance. |
|
1030 | 1055 | """ |
|
1031 | 1056 | pd = ProfileDir.find_profile_dir_by_name(get_ipython_dir(), name=profile) |
|
1032 | 1057 | for file in os.listdir(pd.security_dir): |
|
1033 | 1058 | if file.startswith('nbserver-'): |
|
1034 | 1059 | with io.open(os.path.join(pd.security_dir, file), encoding='utf-8') as f: |
|
1035 | 1060 | info = json.load(f) |
|
1036 | 1061 | |
|
1037 | 1062 | # Simple check whether that process is really still running |
|
1038 | 1063 | # Also remove leftover files from IPython 2.x without a pid field |
|
1039 | 1064 | if ('pid' in info) and check_pid(info['pid']): |
|
1040 | 1065 | yield info |
|
1041 | 1066 | else: |
|
1042 | 1067 | # If the process has died, try to delete its info file |
|
1043 | 1068 | try: |
|
1044 | 1069 | os.unlink(file) |
|
1045 | 1070 | except OSError: |
|
1046 | 1071 | pass # TODO: This should warn or log or something |
|
1047 | 1072 | #----------------------------------------------------------------------------- |
|
1048 | 1073 | # Main entry point |
|
1049 | 1074 | #----------------------------------------------------------------------------- |
|
1050 | 1075 | |
|
1051 | 1076 | launch_new_instance = NotebookApp.launch_instance |
|
1052 | 1077 |
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