4 from allmydata import uri
5 from allmydata.scripts.common_http import do_http, check_http_error
6 from allmydata.scripts.common import get_aliases
7 from allmydata.util.fileutil import move_into_place
8 from allmydata.util.encodingutil import unicode_to_output, quote_output
11 def add_line_to_aliasfile(aliasfile, alias, cap):
12 # we use os.path.exists, rather than catching EnvironmentError, to avoid
13 # clobbering the valuable alias file in case of spurious or transient
15 if os.path.exists(aliasfile):
16 f = codecs.open(aliasfile, "r", "utf-8")
19 if not aliases.endswith("\n"):
23 aliases += "%s: %s\n" % (alias, cap)
24 f = codecs.open(aliasfile+".tmp", "w", "utf-8")
27 move_into_place(aliasfile+".tmp", aliasfile)
29 def add_alias(options):
30 nodedir = options['node-directory']
33 stdout = options.stdout
34 stderr = options.stderr
36 # a single trailing colon will already have been stripped if present
37 print >>stderr, "Alias names cannot contain colons."
40 print >>stderr, "Alias names cannot contain spaces."
43 old_aliases = get_aliases(nodedir)
44 if alias in old_aliases:
45 print >>stderr, "Alias %s already exists!" % quote_output(alias)
47 aliasfile = os.path.join(nodedir, "private", "aliases")
48 cap = uri.from_string_dirnode(cap).to_string()
50 add_line_to_aliasfile(aliasfile, alias, cap)
52 print >>stdout, "Alias %s added" % quote_output(alias)
55 def create_alias(options):
57 nodedir = options['node-directory']
59 stdout = options.stdout
60 stderr = options.stderr
62 # a single trailing colon will already have been stripped if present
63 print >>stderr, "Alias names cannot contain colons."
66 print >>stderr, "Alias names cannot contain spaces."
69 old_aliases = get_aliases(nodedir)
70 if alias in old_aliases:
71 print >>stderr, "Alias %s already exists!" % quote_output(alias)
74 aliasfile = os.path.join(nodedir, "private", "aliases")
76 nodeurl = options['node-url']
77 if not nodeurl.endswith("/"):
79 url = nodeurl + "uri?t=mkdir"
80 resp = do_http("POST", url)
81 rc = check_http_error(resp, stderr)
84 new_uri = resp.read().strip()
86 # probably check for others..
88 add_line_to_aliasfile(aliasfile, alias, new_uri)
90 print >>stdout, "Alias %s created" % (quote_output(alias),)
93 def list_aliases(options):
94 nodedir = options['node-directory']
95 stdout = options.stdout
96 stderr = options.stderr
97 aliases = get_aliases(nodedir)
98 alias_names = sorted(aliases.keys())
99 max_width = max([len(quote_output(name)) for name in alias_names] + [0])
100 fmt = "%" + str(max_width) + "s: %s"
102 for name in alias_names:
104 print >>stdout, fmt % (unicode_to_output(name), unicode_to_output(aliases[name].decode('utf-8')))
105 except (UnicodeEncodeError, UnicodeDecodeError):
106 print >>stderr, fmt % (quote_output(name), quote_output(aliases[name]))
110 print >>stderr, "\nThis listing included aliases or caps that could not be converted to the terminal" \
111 "\noutput encoding. These are shown using backslash escapes and in quotes."