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Merge pull request #274

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b18368b Allow name@domain.tld for OpenAlias lookups (Thomas Winget)
This commit is contained in:
Riccardo Spagni 2015-05-13 11:07:12 +02:00
commit 85589274aa
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GPG key ID: 55432DF31CCD4FCD
2 changed files with 25 additions and 14 deletions
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34
src/common/dns_utils.cpp
View file

@ -205,13 +205,15 @@ std::vector<std::string> DNSResolver::get_ipv4(const std::string& url, bool& dns
dnssec_valid = false;
char urlC[1000]; // waaaay too big, but just in case...
strncpy(urlC, url.c_str(), 999);
urlC[999] = '\0';
if (!check_address_syntax(urlC))
std::string url_copy{url};
if (!check_address_syntax(url_copy))
{
return addresses;
}
strncpy(urlC, url_copy.c_str(), 999);
urlC[999] = '\0';
// destructor takes care of cleanup
ub_result_ptr result;
@ -239,14 +241,15 @@ std::vector<std::string> DNSResolver::get_ipv6(const std::string& url, bool& dns
dnssec_valid = false;
char urlC[1000]; // waaaay too big, but just in case...
strncpy(urlC, url.c_str(), 999);
urlC[999] = '\0';
if (!check_address_syntax(urlC))
std::string url_copy{url};
if (!check_address_syntax(url_copy))
{
return addresses;
}
strncpy(urlC, url_copy.c_str(), 999);
urlC[999] = '\0';
ub_result_ptr result;
// call DNS resolver, blocking. if return value not zero, something went wrong
@ -273,14 +276,15 @@ std::vector<std::string> DNSResolver::get_txt_record(const std::string& url, boo
dnssec_valid = false;
char urlC[1000]; // waaaay too big, but just in case...
strncpy(urlC, url.c_str(), 999);
urlC[999] = '\0';
if (!check_address_syntax(urlC))
std::string url_copy{url};
if (!check_address_syntax(url_copy))
{
return records;
}
strncpy(urlC, url_copy.c_str(), 999);
urlC[999] = '\0';
ub_result_ptr result;
// call DNS resolver, blocking. if return value not zero, something went wrong
@ -314,13 +318,17 @@ DNSResolver& DNSResolver::instance()
return *staticInstance;
}
bool DNSResolver::check_address_syntax(const std::string& addr)
bool DNSResolver::check_address_syntax(std::string& addr)
{
// if string doesn't contain a dot, we won't consider it a url for now.
if (addr.find(".") == std::string::npos)
auto first_dot = addr.find(".");
if (first_dot == std::string::npos)
{
return false;
}
// allow name@domain.tld to work
addr.replace(first_dot, 1, "@");
return true;
}

5
src/common/dns_utils.h
View file

@ -112,11 +112,14 @@ private:
/**
* @brief Checks a string to see if it looks like a URL
*
* If the address looks good, but contains one @ symbol, replace that with a .
* e.g. donate@getmonero.org becomes donate.getmonero.org
*
* @param addr the string to be checked
*
* @return true if it looks enough like a URL, false if not
*/
bool check_address_syntax(const std::string& addr);
bool check_address_syntax(std::string& addr);
DNSResolverData *m_data;
}; // class DNSResolver