diff options
Diffstat (limited to 'transport.c')
-rw-r--r-- | transport.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/transport.c b/transport.c index 3dfb03c06..8ad317bf3 100644 --- a/transport.c +++ b/transport.c @@ -1083,3 +1083,51 @@ int transport_disconnect(struct transport *transport) free(transport); return ret; } + +/* + * Strip username (and password) from an url and return + * it in a newly allocated string. + */ +char *transport_anonymize_url(const char *url) +{ + char *anon_url, *scheme_prefix, *anon_part; + size_t anon_len, prefix_len = 0; + + anon_part = strchr(url, '@'); + if (is_local(url) || !anon_part) + goto literal_copy; + + anon_len = strlen(++anon_part); + scheme_prefix = strstr(url, "://"); + if (!scheme_prefix) { + if (!strchr(anon_part, ':')) + /* cannot be "me@there:/path/name" */ + goto literal_copy; + } else { + const char *cp; + /* make sure scheme is reasonable */ + for (cp = url; cp < scheme_prefix; cp++) { + switch (*cp) { + /* RFC 1738 2.1 */ + case '+': case '.': case '-': + break; /* ok */ + default: + if (isalnum(*cp)) + break; + /* it isn't */ + goto literal_copy; + } + } + /* @ past the first slash does not count */ + cp = strchr(scheme_prefix + 3, '/'); + if (cp && cp < anon_part) + goto literal_copy; + prefix_len = scheme_prefix - url + 3; + } + anon_url = xcalloc(1, 1 + prefix_len + anon_len); + memcpy(anon_url, url, prefix_len); + memcpy(anon_url + prefix_len, anon_part, anon_len); + return anon_url; +literal_copy: + return xstrdup(url); +} |