| 1 | ### -*-python-*- |
| 2 | ### |
| 3 | ### CGI commands |
| 4 | ### |
| 5 | ### (c) 2013 Mark Wooding |
| 6 | ### |
| 7 | |
| 8 | ###----- Licensing notice --------------------------------------------------- |
| 9 | ### |
| 10 | ### This file is part of Chopwood: a password-changing service. |
| 11 | ### |
| 12 | ### Chopwood is free software; you can redistribute it and/or modify |
| 13 | ### it under the terms of the GNU Affero General Public License as |
| 14 | ### published by the Free Software Foundation; either version 3 of the |
| 15 | ### License, or (at your option) any later version. |
| 16 | ### |
| 17 | ### Chopwood is distributed in the hope that it will be useful, |
| 18 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | ### GNU Affero General Public License for more details. |
| 21 | ### |
| 22 | ### You should have received a copy of the GNU Affero General Public |
| 23 | ### License along with Chopwood; if not, see |
| 24 | ### <http://www.gnu.org/licenses/>. |
| 25 | |
| 26 | from __future__ import with_statement |
| 27 | |
| 28 | import errno as E |
| 29 | import os as OS |
| 30 | |
| 31 | from auto import PACKAGE, VERSION |
| 32 | import agpl as AGPL |
| 33 | import cgi as CGI |
| 34 | import cmdutil as CU |
| 35 | import dbmaint as D |
| 36 | import httpauth as HA |
| 37 | import operation as OP |
| 38 | import output as O; OUT = O.OUT; PRINT = O.PRINT |
| 39 | import service as S |
| 40 | import subcommand as SC |
| 41 | import util as U |
| 42 | |
| 43 | ###-------------------------------------------------------------------------- |
| 44 | ### Utilities. |
| 45 | |
| 46 | def operate(what, op, services, *args, **kw): |
| 47 | accts = CU.resolve_accounts(CU.USER, services) |
| 48 | o, ii, rq, ops = OP.operate(op, accts, *args, **kw) |
| 49 | CGI.page('operate.fhtml', |
| 50 | header = dict(pragma = 'no-cache', cache_control = 'no-cache'), |
| 51 | title = 'Chopwood: %s' % what, |
| 52 | what = what, |
| 53 | outcome = o, info = ii, results = ops) |
| 54 | |
| 55 | ###-------------------------------------------------------------------------- |
| 56 | ### Commands. |
| 57 | |
| 58 | @CGI.subcommand('list', ['cgi-query'], 'List available accounts') |
| 59 | def cmd_list_cgi(): |
| 60 | CGI.page('list.fhtml', |
| 61 | title = 'Chopwood: accounts list', |
| 62 | accts = CU.list_accounts(CU.USER), |
| 63 | nonce = HA.NONCE) |
| 64 | |
| 65 | @CGI.subcommand( |
| 66 | 'set', ['cgi'], 'Set password for a collection of services.', |
| 67 | params = [SC.Arg('first'), SC.Arg('second')], |
| 68 | rparam = SC.Arg('services')) |
| 69 | def cmd_set_cgi(first, second, services = []): |
| 70 | if first != second: raise U.ExpectedError, (400, "Passwords don't match") |
| 71 | operate('set passwords', 'set', services, first) |
| 72 | |
| 73 | @CGI.subcommand( |
| 74 | 'reset', ['cgi'], |
| 75 | 'Reset passwords for a collection of services.', |
| 76 | rparam = SC.Arg('services')) |
| 77 | def cmd_reset_cgi(services = []): |
| 78 | operate('reset passwords', 'reset', services) |
| 79 | |
| 80 | @CGI.subcommand( |
| 81 | 'clear', ['cgi'], |
| 82 | 'Clear passwords for a collection of services.', |
| 83 | rparam = SC.Arg('services')) |
| 84 | def cmd_clear_cgi(services = []): |
| 85 | operate('clear passwords', 'clear', services) |
| 86 | |
| 87 | @CGI.subcommand( |
| 88 | 'fail', ['cgi-noauth'], |
| 89 | 'Raise an exception, to test the error reporting machinery.', |
| 90 | opts = [SC.Opt('partial', '-p', '--partial', |
| 91 | 'Raise exception after producing partial output.')]) |
| 92 | def cmd_fail_cgi(partial = False): |
| 93 | if partial: |
| 94 | OUT.header(content_type = 'text/html') |
| 95 | PRINT("""\ |
| 96 | <html> |
| 97 | <head><title>Chopwood: filler text</title></head> |
| 98 | <body> |
| 99 | <h1>Failure expected soon |
| 100 | <p>This is some normal output which will be rudely interrupted.""") |
| 101 | raise Exception, 'You asked for this.' |
| 102 | |
| 103 | ###-------------------------------------------------------------------------- |
| 104 | ### Static content. |
| 105 | |
| 106 | ## A map of file names to content objects. See below. |
| 107 | CONTENT = {} |
| 108 | |
| 109 | class PlainOutput (O.FileOutput): |
| 110 | def header(me, **kw): |
| 111 | pass |
| 112 | |
| 113 | class StaticContent (object): |
| 114 | def __init__(me, type): |
| 115 | me._type = type |
| 116 | def emit(me): |
| 117 | OUT.header(content_type = me._type) |
| 118 | me._emit() |
| 119 | def _write(me, dest): |
| 120 | with open(dest, 'w') as f: |
| 121 | with OUT.redirect_to(PlainOutput(f)): |
| 122 | me.emit() |
| 123 | def write(me, dest): |
| 124 | new = dest + '.new' |
| 125 | try: OS.unlink(new) |
| 126 | except OSError, e: |
| 127 | if e.errno != E.ENOENT: raise |
| 128 | me._write(new) |
| 129 | OS.rename(new, dest) |
| 130 | |
| 131 | class TemplateContent (StaticContent): |
| 132 | def __init__(me, template, *args, **kw): |
| 133 | super(TemplateContent, me).__init__(*args, **kw) |
| 134 | me._template = template |
| 135 | def _emit(me): |
| 136 | CGI.format_tmpl(CGI.TMPL[me._template]) |
| 137 | |
| 138 | class HTMLContent (StaticContent): |
| 139 | def __init__(me, title, template, type = 'text/html', *args, **kw): |
| 140 | super(HTMLContent, me).__init__(type = type, *args, **kw) |
| 141 | me._template = template |
| 142 | me._title = title |
| 143 | def emit(me): |
| 144 | CGI.page(me._template, title = me._title) |
| 145 | |
| 146 | CONTENT.update({ |
| 147 | 'chpwd.css': TemplateContent(template = 'chpwd.css', |
| 148 | type = 'text/css'), |
| 149 | 'chpwd.js': TemplateContent(template = 'chpwd.js', |
| 150 | type = 'text/javascript'), |
| 151 | 'about.html': HTMLContent('Chopwood: about this program', |
| 152 | template = 'about.fhtml'), |
| 153 | 'cookies.html': HTMLContent('Chopwood: use of cookies', |
| 154 | template = 'cookies.fhtml') |
| 155 | }) |
| 156 | |
| 157 | @CGI.subcommand( |
| 158 | 'static', ['cgi-noauth'], 'Output a static file.', |
| 159 | rparam = SC.Arg('path')) |
| 160 | def cmd_static_cgi(path): |
| 161 | name = '/'.join(path) |
| 162 | try: content = CONTENT[name] |
| 163 | except KeyError: raise U.ExpectedError, (404, "Unknown file `%s'" % name) |
| 164 | content.emit() |
| 165 | |
| 166 | @SC.subcommand( |
| 167 | 'static', ['admin'], 'Write the static files to DIR.', |
| 168 | params = [SC.Arg('dir')]) |
| 169 | def cmd_static_admin(dir): |
| 170 | try: OS.makedirs(dir, 0777) |
| 171 | except OSError, e: |
| 172 | if e.errno != E.EEXIST: raise |
| 173 | for f, c in CONTENT.iteritems(): |
| 174 | c.write(OS.path.join(dir, f)) |
| 175 | |
| 176 | TARBALL = '%s-%s.tar.gz' % (PACKAGE, VERSION) |
| 177 | @CGI.subcommand(TARBALL, ['cgi-noauth'], """\ |
| 178 | Download source code (in `.tar.gz' format).""") |
| 179 | def cmd_source_cgi(): |
| 180 | OUT.header(content_type = 'application/octet-stream') |
| 181 | AGPL.source(OUT) |
| 182 | |
| 183 | @CGI.subcommand('source', ['cgi-noauth'], """\ |
| 184 | Redirect to the source code tarball (so that it's correctly named.""") |
| 185 | def cmd_sourceredirect_cgi(): |
| 186 | CGI.redirect(CGI.action(TARBALL)) |
| 187 | |
| 188 | ###----- That's all, folks -------------------------------------------------- |