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Rename string_is_valid_hostname -> string_is_valid_nonrfc_hostname
Per discussion on 25055.
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@ -1094,7 +1094,7 @@ string_is_valid_dest(const char *string)
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retval = string_is_valid_ipv4_address(string) ||
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string_is_valid_ipv6_address(string) ||
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string_is_valid_hostname(string);
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string_is_valid_nonrfc_hostname(string);
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tor_free(tmp);
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@ -1108,7 +1108,7 @@ string_is_valid_dest(const char *string)
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* with misconfigured zones that have been encountered in the wild.
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*/
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int
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string_is_valid_hostname(const char *string)
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string_is_valid_nonrfc_hostname(const char *string)
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{
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int result = 1;
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int has_trailing_dot;
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@ -234,7 +234,7 @@ const char *find_str_at_start_of_line(const char *haystack,
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int string_is_C_identifier(const char *string);
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int string_is_key_value(int severity, const char *string);
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int string_is_valid_dest(const char *string);
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int string_is_valid_hostname(const char *string);
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int string_is_valid_nonrfc_hostname(const char *string);
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int string_is_valid_ipv4_address(const char *string);
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int string_is_valid_ipv6_address(const char *string);
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@ -5559,56 +5559,57 @@ test_util_hostname_validation(void *arg)
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(void)arg;
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// Lets try valid hostnames first.
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tt_assert(string_is_valid_hostname("torproject.org"));
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tt_assert(string_is_valid_hostname("ocw.mit.edu"));
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tt_assert(string_is_valid_hostname("i.4cdn.org"));
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tt_assert(string_is_valid_hostname("stanford.edu"));
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tt_assert(string_is_valid_hostname("multiple-words-with-hypens.jp"));
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tt_assert(string_is_valid_nonrfc_hostname("torproject.org"));
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tt_assert(string_is_valid_nonrfc_hostname("ocw.mit.edu"));
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tt_assert(string_is_valid_nonrfc_hostname("i.4cdn.org"));
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tt_assert(string_is_valid_nonrfc_hostname("stanford.edu"));
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tt_assert(string_is_valid_nonrfc_hostname("multiple-words-with-hypens.jp"));
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// Subdomain name cannot start with '-' or '_'.
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tt_assert(!string_is_valid_hostname("-torproject.org"));
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tt_assert(!string_is_valid_hostname("subdomain.-domain.org"));
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tt_assert(!string_is_valid_hostname("-subdomain.domain.org"));
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tt_assert(!string_is_valid_hostname("___abc.org"));
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tt_assert(!string_is_valid_nonrfc_hostname("-torproject.org"));
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tt_assert(!string_is_valid_nonrfc_hostname("subdomain.-domain.org"));
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tt_assert(!string_is_valid_nonrfc_hostname("-subdomain.domain.org"));
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tt_assert(!string_is_valid_nonrfc_hostname("___abc.org"));
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// Hostnames cannot contain non-alphanumeric characters.
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tt_assert(!string_is_valid_hostname("%%domain.\\org."));
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tt_assert(!string_is_valid_hostname("***x.net"));
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tt_assert(!string_is_valid_hostname("\xff\xffxyz.org"));
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tt_assert(!string_is_valid_hostname("word1 word2.net"));
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tt_assert(!string_is_valid_nonrfc_hostname("%%domain.\\org."));
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tt_assert(!string_is_valid_nonrfc_hostname("***x.net"));
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tt_assert(!string_is_valid_nonrfc_hostname("\xff\xffxyz.org"));
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tt_assert(!string_is_valid_nonrfc_hostname("word1 word2.net"));
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// Test workaround for nytimes.com stupidity, technically invalid,
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// but we allow it since they are big, even though they are failing to
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// comply with a ~30 year old standard.
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tt_assert(string_is_valid_hostname("core3_euw1.fabrik.nytimes.com"));
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tt_assert(string_is_valid_nonrfc_hostname("core3_euw1.fabrik.nytimes.com"));
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// Firefox passes FQDNs with trailing '.'s directly to the SOCKS proxy,
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// which is redundant since the spec states DOMAINNAME addresses are fully
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// qualified. While unusual, this should be tollerated.
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tt_assert(string_is_valid_hostname("core9_euw1.fabrik.nytimes.com."));
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tt_assert(!string_is_valid_hostname("..washingtonpost.is.better.com"));
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tt_assert(!string_is_valid_hostname("so.is..ft.com"));
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tt_assert(!string_is_valid_hostname("..."));
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tt_assert(string_is_valid_nonrfc_hostname("core9_euw1.fabrik.nytimes.com."));
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tt_assert(!string_is_valid_nonrfc_hostname(
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"..washingtonpost.is.better.com"));
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tt_assert(!string_is_valid_nonrfc_hostname("so.is..ft.com"));
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tt_assert(!string_is_valid_nonrfc_hostname("..."));
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// XXX: do we allow single-label DNS names?
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// We shouldn't for SOCKS (spec says "contains a fully-qualified domain name"
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// but only test pathologically malformed traling '.' cases for now.
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tt_assert(!string_is_valid_hostname("."));
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tt_assert(!string_is_valid_hostname(".."));
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tt_assert(!string_is_valid_nonrfc_hostname("."));
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tt_assert(!string_is_valid_nonrfc_hostname(".."));
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// IP address strings are not hostnames.
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tt_assert(!string_is_valid_hostname("8.8.8.8"));
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tt_assert(!string_is_valid_hostname("[2a00:1450:401b:800::200e]"));
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tt_assert(!string_is_valid_hostname("2a00:1450:401b:800::200e"));
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tt_assert(!string_is_valid_nonrfc_hostname("8.8.8.8"));
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tt_assert(!string_is_valid_nonrfc_hostname("[2a00:1450:401b:800::200e]"));
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tt_assert(!string_is_valid_nonrfc_hostname("2a00:1450:401b:800::200e"));
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// We allow alphanumeric TLDs. For discussion, see ticket #25055.
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tt_assert(string_is_valid_hostname("lucky.13"));
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tt_assert(string_is_valid_hostname("luck.y13"));
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tt_assert(string_is_valid_hostname("luck.y13."));
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tt_assert(string_is_valid_nonrfc_hostname("lucky.13"));
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tt_assert(string_is_valid_nonrfc_hostname("luck.y13"));
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tt_assert(string_is_valid_nonrfc_hostname("luck.y13."));
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// We allow punycode TLDs. For examples, see
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// http://data.iana.org/TLD/tlds-alpha-by-domain.txt
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tt_assert(string_is_valid_hostname("example.xn--l1acc"));
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tt_assert(string_is_valid_nonrfc_hostname("example.xn--l1acc"));
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done:
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return;
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