Mercurial > libervia-backend
annotate libervia/cli/cmd_pipe.py @ 4207:2865e70b0b2c
tests (unit/cli/calls): unit tests for CLI call GUI:
rel 427
author | Goffi <goffi@goffi.org> |
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date | Sun, 11 Feb 2024 23:21:07 +0100 |
parents | 47401850dec6 |
children | 0d7bb4df2343 |
rev | line source |
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3137 | 1 #!/usr/bin/env python3 |
2 | |
815 | 3 |
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4 # Libervia CLI |
3479 | 5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) |
815 | 6 |
7 # This program is free software: you can redistribute it and/or modify | |
8 # it under the terms of the GNU Affero General Public License as published by | |
9 # the Free Software Foundation, either version 3 of the License, or | |
10 # (at your option) any later version. | |
11 | |
12 # This program is distributed in the hope that it will be useful, | |
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 # GNU Affero General Public License for more details. | |
16 | |
17 # You should have received a copy of the GNU Affero General Public License | |
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | |
3040 | 20 import asyncio |
21 import errno | |
22 from functools import partial | |
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23 import socket |
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24 import sys |
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25 |
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26 from libervia.backend.core.i18n import _ |
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27 from libervia.backend.tools.common import data_format |
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28 from libervia.cli import base |
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29 from libervia.cli import xmlui_manager |
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30 from libervia.cli.constants import Const as C |
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31 from libervia.frontends.tools import jid |
0 | 32 |
817 | 33 __commands__ = ["Pipe"] |
0 | 34 |
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35 START_PORT = 9999 |
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36 |
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37 |
817 | 38 class PipeOut(base.CommandBase): |
39 def __init__(self, host): | |
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40 super(PipeOut, self).__init__(host, "out", help=_("send a pipe a stream")) |
393 | 41 |
817 | 42 def add_parser_options(self): |
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43 self.parser.add_argument( |
3028 | 44 "jid", help=_("the destination jid") |
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45 ) |
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46 |
3040 | 47 async def start(self): |
48 """ Create named pipe, and send stdin to it """ | |
49 try: | |
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50 port = await self.host.bridge.stream_out( |
3040 | 51 await self.host.get_full_jid(self.args.jid), |
52 self.profile, | |
53 ) | |
54 except Exception as e: | |
55 self.disp(f"can't start stream: {e}", error=True) | |
56 self.host.quit(C.EXIT_BRIDGE_ERRBACK) | |
57 else: | |
58 # FIXME: we use temporarily blocking code here, as it simplify | |
59 # asyncio port: "loop.connect_read_pipe(lambda: reader_protocol, | |
60 # sys.stdin.buffer)" doesn't work properly when a file is piped in | |
61 # (we get a "ValueError: Pipe transport is for pipes/sockets only.") | |
62 # while it's working well for simple text sending. | |
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63 |
3040 | 64 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
65 s.connect(("127.0.0.1", int(port))) | |
66 | |
67 while True: | |
68 buf = sys.stdin.buffer.read(4096) | |
69 if not buf: | |
70 break | |
71 try: | |
72 s.sendall(buf) | |
73 except socket.error as e: | |
74 if e.errno == errno.EPIPE: | |
75 sys.stderr.write(f"e\n") | |
76 self.host.quit(1) | |
77 else: | |
78 raise e | |
79 self.host.quit() | |
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80 |
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81 |
3040 | 82 async def handle_stream_in(reader, writer, host): |
83 """Write all received data to stdout""" | |
84 while True: | |
85 data = await reader.read(4096) | |
86 if not data: | |
87 break | |
88 sys.stdout.buffer.write(data) | |
89 try: | |
90 sys.stdout.flush() | |
91 except IOError as e: | |
92 sys.stderr.write(f"{e}\n") | |
93 break | |
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94 host.quit_from_signal() |
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95 |
817 | 96 |
97 class PipeIn(base.CommandAnswering): | |
98 def __init__(self, host): | |
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99 super(PipeIn, self).__init__(host, "in", help=_("receive a pipe stream")) |
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100 self.action_callbacks = {"STREAM": self.on_stream_action} |
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101 |
817 | 102 def add_parser_options(self): |
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103 self.parser.add_argument( |
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104 "jids", |
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105 nargs="*", |
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106 help=_('Jids accepted (none means "accept everything")'), |
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107 ) |
0 | 108 |
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109 def get_xmlui_id(self, action_data): |
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110 try: |
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111 xml_ui = action_data["xmlui"] |
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112 except KeyError: |
3028 | 113 self.disp(_("Action has no XMLUI"), 1) |
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114 else: |
3040 | 115 ui = xmlui_manager.create(self.host, xml_ui) |
116 if not ui.submit_id: | |
3028 | 117 self.disp(_("Invalid XMLUI received"), error=True) |
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118 self.quit_from_signal(C.EXIT_INTERNAL_ERROR) |
3040 | 119 return ui.submit_id |
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120 |
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121 async def on_stream_action(self, action_data, action_id, security_limit, profile): |
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122 xmlui_id = self.get_xmlui_id(action_data) |
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123 if xmlui_id is None: |
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124 self.host.quit_from_signal(C.EXIT_ERROR) |
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125 try: |
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126 from_jid = jid.JID(action_data["from_jid"]) |
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127 except KeyError: |
3040 | 128 self.disp(_("Ignoring action without from_jid data"), error=True) |
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129 return |
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130 |
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131 if not self.bare_jids or from_jid.bare in self.bare_jids: |
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132 host, port = "localhost", START_PORT |
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133 while True: |
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134 try: |
3040 | 135 server = await asyncio.start_server( |
136 partial(handle_stream_in, host=self.host), host, port) | |
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137 except socket.error as e: |
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138 if e.errno == errno.EADDRINUSE: |
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139 port += 1 |
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140 else: |
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141 raise e |
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142 else: |
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143 break |
3028 | 144 xmlui_data = {"answer": C.BOOL_TRUE, "port": str(port)} |
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145 await self.host.bridge.action_launch( |
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146 xmlui_id, data_format.serialise(xmlui_data), profile_key=profile |
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147 ) |
3040 | 148 async with server: |
149 await server.serve_forever() | |
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150 self.host.quit_from_signal() |
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151 |
3040 | 152 async def start(self): |
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153 self.bare_jids = [jid.JID(jid_).bare for jid_ in self.args.jids] |
3040 | 154 await self.start_answering() |
817 | 155 |
156 | |
157 class Pipe(base.CommandBase): | |
158 subcommands = (PipeOut, PipeIn) | |
159 | |
160 def __init__(self, host): | |
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161 super(Pipe, self).__init__( |
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162 host, "pipe", use_profile=False, help=_("stream piping through XMPP") |
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163 ) |