Mercurial > libervia-backend
annotate sat_frontends/jp/cmd_pipe.py @ 3513:753d151da886
XEP-0277: new preview/mbPreview method:
This method does more or less the same thing as sending, but without actually sending the
item, and parse the generated element just after. This way, the triggers are run, and a
preview of the item can be made for the resulting microblog data.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Thu, 29 Apr 2021 15:49:59 +0200 |
| parents | be6d91572633 |
| children | 524856bd7b19 |
| rev | line source |
|---|---|
| 3137 | 1 #!/usr/bin/env python3 |
| 2 | |
| 815 | 3 |
| 4 # jp: a SAT command line tool | |
| 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 socket |
| 21 import asyncio | |
| 22 import errno | |
| 23 from functools import partial | |
| 817 | 24 from sat_frontends.jp import base |
|
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25 from sat_frontends.jp.constants import Const as C |
| 3040 | 26 from sat_frontends.jp import xmlui_manager |
| 817 | 27 import sys |
| 814 | 28 from sat.core.i18n import _ |
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29 from sat_frontends.tools import jid |
| 0 | 30 |
| 817 | 31 __commands__ = ["Pipe"] |
| 0 | 32 |
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33 START_PORT = 9999 |
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34 |
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35 |
| 817 | 36 class PipeOut(base.CommandBase): |
| 37 def __init__(self, host): | |
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38 super(PipeOut, self).__init__(host, "out", help=_("send a pipe a stream")) |
| 393 | 39 |
| 817 | 40 def add_parser_options(self): |
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41 self.parser.add_argument( |
| 3028 | 42 "jid", help=_("the destination jid") |
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43 ) |
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44 |
| 3040 | 45 async def start(self): |
| 46 """ Create named pipe, and send stdin to it """ | |
| 47 try: | |
| 48 port = await self.host.bridge.streamOut( | |
| 49 await self.host.get_full_jid(self.args.jid), | |
| 50 self.profile, | |
| 51 ) | |
| 52 except Exception as e: | |
| 53 self.disp(f"can't start stream: {e}", error=True) | |
| 54 self.host.quit(C.EXIT_BRIDGE_ERRBACK) | |
| 55 else: | |
| 56 # FIXME: we use temporarily blocking code here, as it simplify | |
| 57 # asyncio port: "loop.connect_read_pipe(lambda: reader_protocol, | |
| 58 # sys.stdin.buffer)" doesn't work properly when a file is piped in | |
| 59 # (we get a "ValueError: Pipe transport is for pipes/sockets only.") | |
| 60 # while it's working well for simple text sending. | |
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61 |
| 3040 | 62 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| 63 s.connect(("127.0.0.1", int(port))) | |
| 64 | |
| 65 while True: | |
| 66 buf = sys.stdin.buffer.read(4096) | |
| 67 if not buf: | |
| 68 break | |
| 69 try: | |
| 70 s.sendall(buf) | |
| 71 except socket.error as e: | |
| 72 if e.errno == errno.EPIPE: | |
| 73 sys.stderr.write(f"e\n") | |
| 74 self.host.quit(1) | |
| 75 else: | |
| 76 raise e | |
| 77 self.host.quit() | |
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78 |
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79 |
| 3040 | 80 async def handle_stream_in(reader, writer, host): |
| 81 """Write all received data to stdout""" | |
| 82 while True: | |
| 83 data = await reader.read(4096) | |
| 84 if not data: | |
| 85 break | |
| 86 sys.stdout.buffer.write(data) | |
| 87 try: | |
| 88 sys.stdout.flush() | |
| 89 except IOError as e: | |
| 90 sys.stderr.write(f"{e}\n") | |
| 91 break | |
| 92 host.quitFromSignal() | |
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93 |
| 817 | 94 |
| 95 class PipeIn(base.CommandAnswering): | |
| 96 def __init__(self, host): | |
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97 super(PipeIn, self).__init__(host, "in", help=_("receive a pipe stream")) |
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98 self.action_callbacks = {"STREAM": self.onStreamAction} |
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99 |
| 817 | 100 def add_parser_options(self): |
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101 self.parser.add_argument( |
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102 "jids", |
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103 nargs="*", |
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104 help=_('Jids accepted (none means "accept everything")'), |
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105 ) |
| 0 | 106 |
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107 def getXmluiId(self, action_data): |
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108 try: |
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109 xml_ui = action_data["xmlui"] |
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110 except KeyError: |
| 3028 | 111 self.disp(_("Action has no XMLUI"), 1) |
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112 else: |
| 3040 | 113 ui = xmlui_manager.create(self.host, xml_ui) |
| 114 if not ui.submit_id: | |
| 3028 | 115 self.disp(_("Invalid XMLUI received"), error=True) |
| 3040 | 116 self.quitFromSignal(C.EXIT_INTERNAL_ERROR) |
| 117 return ui.submit_id | |
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118 |
| 3040 | 119 async def onStreamAction(self, action_data, action_id, security_limit, profile): |
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120 xmlui_id = self.getXmluiId(action_data) |
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121 if xmlui_id is None: |
| 3040 | 122 self.host.quitFromSignal(C.EXIT_ERROR) |
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123 try: |
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124 from_jid = jid.JID(action_data["meta_from_jid"]) |
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125 except KeyError: |
| 3040 | 126 self.disp(_("Ignoring action without from_jid data"), error=True) |
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127 return |
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128 |
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129 if not self.bare_jids or from_jid.bare in self.bare_jids: |
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130 host, port = "localhost", START_PORT |
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131 while True: |
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132 try: |
| 3040 | 133 server = await asyncio.start_server( |
| 134 partial(handle_stream_in, host=self.host), host, port) | |
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135 except socket.error as e: |
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136 if e.errno == errno.EADDRINUSE: |
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137 port += 1 |
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138 else: |
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139 raise e |
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140 else: |
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141 break |
| 3028 | 142 xmlui_data = {"answer": C.BOOL_TRUE, "port": str(port)} |
| 3040 | 143 await self.host.bridge.launchAction( |
| 144 xmlui_id, xmlui_data, profile_key=profile) | |
| 145 async with server: | |
| 146 await server.serve_forever() | |
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147 self.host.quitFromSignal() |
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148 |
| 3040 | 149 async def start(self): |
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150 self.bare_jids = [jid.JID(jid_).bare for jid_ in self.args.jids] |
| 3040 | 151 await self.start_answering() |
| 817 | 152 |
| 153 | |
| 154 class Pipe(base.CommandBase): | |
| 155 subcommands = (PipeOut, PipeIn) | |
| 156 | |
| 157 def __init__(self, host): | |
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158 super(Pipe, self).__init__( |
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159 host, "pipe", use_profile=False, help=_("stream piping through XMPP") |
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160 ) |