make openalias also available for solo miner; introduce namespace tools::dns_utils; support integrated address with dns lookup

9 files changed, 203 insertions, 162 deletions

diff --git a/src/common/dns_utils.cpp b/src/common/dns_utils.cpp
index e6e53a5c0..35fb9fe6c 100644
--- a/src/common/dns_utils.cpp
+++ b/src/common/dns_utils.cpp
@@ -26,7 +26,10 @@
 // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#include "common/command_line.h"
+#include "common/i18n.h"
 #include "common/dns_utils.h"
+#include "cryptonote_core/cryptonote_basic_impl.h"
 #include <cstring>
 #include <sstream>
 // check local first (in the event of static or in-source compilation of libunbound)
@@ -323,4 +326,144 @@ bool DNSResolver::check_address_syntax(const char *addr) const
   return true;
 }
 
+namespace dns_utils
+{
+
+const char *tr(const char *str) { return i18n_translate(str, "tools::dns_utils"); }
+
+//-----------------------------------------------------------------------
+// TODO: parse the string in a less stupid way, probably with regex
+std::string address_from_txt_record(const std::string& s)
+{
+  // make sure the txt record has "oa1:xmr" and find it
+  auto pos = s.find("oa1:xmr");
+  if (pos == std::string::npos)
+    return {};
+  // search from there to find "recipient_address="
+  pos = s.find("recipient_address=", pos);
+  if (pos == std::string::npos)
+    return {};
+  pos += 18; // move past "recipient_address="
+  // find the next semicolon
+  auto pos2 = s.find(";", pos);
+  if (pos2 != std::string::npos)
+  {
+    // length of address == 95, we can at least validate that much here
+    if (pos2 - pos == 95)
+    {
+      return s.substr(pos, 95);
+    }
+    else if (pos2 - pos == 106) // length of address == 106 --> integrated address
+    {
+      return s.substr(pos, 106);
+    }
+  }
+  return {};
+}
+/**
+ * @brief gets a monero address from the TXT record of a DNS entry
+ *
+ * gets the monero address from the TXT record of the DNS entry associated
+ * with <url>.  If this lookup fails, or the TXT record does not contain an
+ * XMR address in the correct format, returns an empty string.  <dnssec_valid>
+ * will be set true or false according to whether or not the DNS query passes
+ * DNSSEC validation.
+ *
+ * @param url the url to look up
+ * @param dnssec_valid return-by-reference for DNSSEC status of query
+ *
+ * @return a monero address (as a string) or an empty string
+ */
+std::vector<std::string> addresses_from_url(const std::string& url, bool& dnssec_valid)
+{
+  std::vector<std::string> addresses;
+  // get txt records
+  bool dnssec_available, dnssec_isvalid;
+  std::string oa_addr = DNSResolver::instance().get_dns_format_from_oa_address(url);
+  auto records = DNSResolver::instance().get_txt_record(oa_addr, dnssec_available, dnssec_isvalid);
+
+  // TODO: update this to allow for conveying that dnssec was not available
+  if (dnssec_available && dnssec_isvalid)
+  {
+    dnssec_valid = true;
+  }
+  else dnssec_valid = false;
+
+  // for each txt record, try to find a monero address in it.
+  for (auto& rec : records)
+  {
+    std::string addr = address_from_txt_record(rec);
+    if (addr.size())
+    {
+      addresses.push_back(addr);
+    }
+  }
+  return addresses;
+}
+
+std::string get_account_address_as_str_from_url(const std::string& url, bool& dnssec_valid)
+{
+  // attempt to get address from dns query
+  auto addresses = addresses_from_url(url, dnssec_valid);
+  if (addresses.empty())
+  {
+    std::cout << tr("wrong address: ") << url;
+    return {};
+  }
+  // for now, move on only if one address found
+  if (addresses.size() > 1)
+  {
+    std::cout << tr("not yet supported: Multiple Monero addresses found for given URL: ") << url;
+    return {};
+  }
+  // prompt user for confirmation.
+  // inform user of DNSSEC validation status as well.
+  std::string dnssec_str;
+  if (dnssec_valid)
+  {
+    dnssec_str = tr("DNSSEC validation passed");
+  }
+  else
+  {
+    dnssec_str = tr("WARNING: DNSSEC validation was unsuccessful, this address may not be correct!");
+  }
+  std::stringstream prompt;
+  prompt << tr("For URL: ") << url
+         << ", " << dnssec_str << std::endl
+         << tr(" Monero Address = ") << addresses[0]
+         << std::endl
+         << tr("Is this OK? (Y/n) ")
+  ;  
+  // prompt the user for confirmation given the dns query and dnssec status
+  std::string confirm_dns_ok = command_line::input_line(prompt.str());
+  if (std::cin.eof())
+  {
+    return {};
+  }
+  if (!command_line::is_yes(confirm_dns_ok))
+  {
+    std::cout << tr("you have cancelled the transfer request") << std::endl;
+    return {};
+  }
+  return addresses[0];
+}
+
+bool get_account_address_from_str_or_url(
+    cryptonote::account_public_address& address
+  , bool& has_payment_id
+  , crypto::hash8& payment_id
+  , bool testnet
+  , const std::string& str_or_url
+  )
+{
+  if (cryptonote::get_account_integrated_address_from_str(address, has_payment_id, payment_id, testnet, str_or_url))
+    return true;
+  bool dnssec_valid;
+  std::string address_str = get_account_address_as_str_from_url(str_or_url, dnssec_valid);
+  return !address_str.empty() &&
+          cryptonote::get_account_integrated_address_from_str(address, has_payment_id, payment_id, testnet, address_str);
+}
+
+}  // namespace tools::dns_utils
+
 }  // namespace tools
diff --git a/src/common/dns_utils.h b/src/common/dns_utils.h
index 2e87fb01f..5fe1d4775 100644
--- a/src/common/dns_utils.h
+++ b/src/common/dns_utils.h
@@ -25,9 +25,11 @@
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#pragma once
 
 #include <vector>
 #include <string>
+#include "cryptonote_core/cryptonote_basic.h"
 
 namespace tools
 {
@@ -155,4 +157,21 @@ private:
   DNSResolverData *m_data;
 }; // class DNSResolver
 
+namespace dns_utils
+{
+
+std::string address_from_txt_record(const std::string& s);
+std::vector<std::string> addresses_from_url(const std::string& url, bool& dnssec_valid);
+
+std::string get_account_address_as_str_from_url(const std::string& url, bool& dnssec_valid);
+bool get_account_address_from_str_or_url(
+    cryptonote::account_public_address& address
+  , bool& has_payment_id
+  , crypto::hash8& payment_id
+  , bool testnet
+  , const std::string& str_or_url
+  );
+
+}  // namespace tools::dns_utils
+
 }  // namespace tools
diff --git a/src/daemon/command_parser_executor.cpp b/src/daemon/command_parser_executor.cpp
index f07ef1616..7381dd06f 100644
--- a/src/daemon/command_parser_executor.cpp
+++ b/src/daemon/command_parser_executor.cpp
@@ -26,7 +26,7 @@
 // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include "cryptonote_core/cryptonote_basic_impl.h"
+#include "common/dns_utils.h"
 #include "daemon/command_parser_executor.h"
 
 namespace daemonize {
@@ -238,17 +238,35 @@ bool t_command_parser_executor::start_mining(const std::vector<std::string>& arg
   }
 
   cryptonote::account_public_address adr;
+  bool has_payment_id;
+  crypto::hash8 payment_id;
   bool testnet = false;
-  if(!cryptonote::get_account_address_from_str(adr, false, args.front()))
+  if(!cryptonote::get_account_integrated_address_from_str(adr, has_payment_id, payment_id, false, args.front()))
   {
-    if(!cryptonote::get_account_address_from_str(adr, true, args.front()))
+    if(!cryptonote::get_account_integrated_address_from_str(adr, has_payment_id, payment_id, true, args.front()))
     {
-      std::cout << "target account address has wrong format" << std::endl;
-      return true;
+      bool dnssec_valid;
+      std::string address_str = tools::dns_utils::get_account_address_as_str_from_url(args.front(), dnssec_valid);
+      if(!cryptonote::get_account_integrated_address_from_str(adr, has_payment_id, payment_id, false, address_str))
+      {
+        if(!cryptonote::get_account_integrated_address_from_str(adr, has_payment_id, payment_id, true, address_str))
+        {
+          std::cout << "target account address has wrong format" << std::endl;
+          return true;
+        }
+        else
+        {
+          testnet = true;
+        }
+      }
+    }
+    else
+    {
+      testnet = true;
     }
-    testnet = true;
-    std::cout << "Mining to a testnet address, make sure this is intentional!" << std::endl;
   }
+  if(testnet)
+    std::cout << "Mining to a testnet address, make sure this is intentional!" << std::endl;
   uint64_t threads_count = 1;
   if(args.size() > 2)
   {
diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index d03f3e7be..1f1770326 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -46,6 +46,7 @@
 #include "common/i18n.h"
 #include "common/command_line.h"
 #include "common/util.h"
+#include "common/dns_utils.h"
 #include "p2p/net_node.h"
 #include "cryptonote_protocol/cryptonote_protocol_handler.h"
 #include "simplewallet.h"
@@ -1877,75 +1878,6 @@ bool simple_wallet::rescan_spent(const std::vector<std::string> &args)
   return true;
 }
 //----------------------------------------------------------------------------------------------------
-bool simple_wallet::get_address_from_str(const std::string &str, cryptonote::account_public_address &address, bool &has_payment_id, crypto::hash8 &payment_id)
-{
-    if(!get_account_integrated_address_from_str(address, has_payment_id, payment_id, m_wallet->testnet(), str))
-    {
-      // if treating as an address fails, try as url
-      bool dnssec_ok = false;
-      std::string url = str;
-
-      // attempt to get address from dns query
-      auto addresses_from_dns = tools::wallet2::addresses_from_url(url, dnssec_ok);
-
-      // for now, move on only if one address found
-      if (addresses_from_dns.size() == 1)
-      {
-        if (get_account_integrated_address_from_str(address, has_payment_id, payment_id, m_wallet->testnet(), addresses_from_dns[0]))
-        {
-          // if it was an address, prompt user for confirmation.
-          // inform user of DNSSEC validation status as well.
-
-          std::string dnssec_str;
-          if (dnssec_ok)
-          {
-            dnssec_str = tr("DNSSEC validation passed");
-          }
-          else
-          {
-            dnssec_str = tr("WARNING: DNSSEC validation was unsuccessful, this address may not be correct!");
-          }
-          std::stringstream prompt;
-          prompt << tr("For URL: ") << url
-                 << ", " << dnssec_str << std::endl
-                 << tr(" Monero Address = ") << addresses_from_dns[0]
-                 << std::endl
-                 << tr("Is this OK? (Y/n) ")
-          ;
-
-          // prompt the user for confirmation given the dns query and dnssec status
-          std::string confirm_dns_ok = command_line::input_line(prompt.str());
-          if (std::cin.eof())
-          {
-            return false;
-          }
-          if (!command_line::is_yes(confirm_dns_ok))
-          {
-            fail_msg_writer() << tr("you have cancelled the transfer request");
-            return false;
-          }
-        }
-        else
-        {
-          fail_msg_writer() << tr("failed to get a Monero address from: ") << url;
-          return false;
-        }
-      }
-      else if (addresses_from_dns.size() > 1)
-      {
-        fail_msg_writer() << tr("not yet supported: Multiple Monero addresses found for given URL: ") << url;
-        return false;
-      }
-      else
-      {
-        fail_msg_writer() << tr("wrong address: ") << url;
-        return false;
-      }
-    }
-
-    return true;
-}
-//----------------------------------------------------------------------------------------------------
 bool simple_wallet::transfer_main(int transfer_type, const std::vector<std::string> &args_)
 {
   if (!try_connect_to_daemon())
@@ -2038,7 +1970,7 @@ bool simple_wallet::transfer_main(int transfer_type, const std::vector<std::stri
     cryptonote::tx_destination_entry de;
     bool has_payment_id;
     crypto::hash8 new_payment_id;
-    if (!get_address_from_str(local_args[i], de.addr, has_payment_id, new_payment_id))
+    if (!tools::dns_utils::get_account_address_from_str_or_url(de.addr, has_payment_id, new_payment_id, m_wallet->testnet(), local_args[i]))
       return true;
 
     if (has_payment_id)
@@ -2526,7 +2458,7 @@ bool simple_wallet::sweep_all(const std::vector<std::string> &args_)
   bool has_payment_id;
   crypto::hash8 new_payment_id;
   cryptonote::account_public_address address;
-  if (!get_address_from_str(local_args[0], address, has_payment_id, new_payment_id))
+  if (!tools::dns_utils::get_account_address_from_str_or_url(address, has_payment_id, new_payment_id, m_wallet->testnet(), local_args[0]))
     return true;
 
   if (has_payment_id)
@@ -3074,7 +3006,7 @@ bool simple_wallet::check_tx_key(const std::vector<std::string> &args_)
   cryptonote::account_public_address address;
   bool has_payment_id;
   crypto::hash8 payment_id;
-  if(!get_account_integrated_address_from_str(address, has_payment_id, payment_id, m_wallet->testnet(), local_args[2]))
+  if(!tools::dns_utils::get_account_address_from_str_or_url(address, has_payment_id, payment_id, m_wallet->testnet(), local_args[2]))
   {
     fail_msg_writer() << tr("failed to parse address");
     return true;
@@ -3614,7 +3546,7 @@ bool simple_wallet::verify(const std::vector<std::string> &args)
   cryptonote::account_public_address address;
   bool has_payment_id;
   crypto::hash8 payment_id;
-  if(!get_account_integrated_address_from_str(address, has_payment_id, payment_id, m_wallet->testnet(), address_string))
+  if(!tools::dns_utils::get_account_address_from_str_or_url(address, has_payment_id, payment_id, m_wallet->testnet(), address_string))
   {
     fail_msg_writer() << tr("failed to parse address");
     return true;
diff --git a/src/simplewallet/simplewallet.h b/src/simplewallet/simplewallet.h
index c3e14a8cc..37662c998 100644
--- a/src/simplewallet/simplewallet.h
+++ b/src/simplewallet/simplewallet.h
@@ -162,7 +162,6 @@ namespace cryptonote
     bool accept_loaded_tx(const std::function<size_t()> get_num_txes, const std::function<const tools::wallet2::tx_construction_data&(size_t)> &get_tx, const std::string &extra_message = std::string());
     bool accept_loaded_tx(const tools::wallet2::unsigned_tx_set &txs);
     bool accept_loaded_tx(const tools::wallet2::signed_tx_set &txs);
-    bool get_address_from_str(const std::string &str, cryptonote::account_public_address &address, bool &has_payment_id, crypto::hash8 &payment_id);
 
     /*!
      * \brief Prints the seed with a nice message
diff --git a/src/wallet/api/wallet_manager.cpp b/src/wallet/api/wallet_manager.cpp
index 4ee5ab8df..d29f3d375 100644
--- a/src/wallet/api/wallet_manager.cpp
+++ b/src/wallet/api/wallet_manager.cpp
@@ -32,6 +32,7 @@
 #include "wallet_manager.h"
 #include "wallet.h"
 #include "common_defines.h"
+#include "common/dns_utils.h"
 #include "net/http_client.h"
 
 #include <boost/filesystem.hpp>
@@ -354,7 +355,7 @@ double WalletManagerImpl::miningHashRate() const
 
 std::string WalletManagerImpl::resolveOpenAlias(const std::string &address, bool &dnssec_valid) const
 {
-    std::vector<std::string> addresses = tools::wallet2::addresses_from_url(address, dnssec_valid);
+    std::vector<std::string> addresses = tools::dns_utils::addresses_from_url(address, dnssec_valid);
     if (addresses.empty())
         return "";
     return addresses.front();
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 221dd8e0b..7d76b110b 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -51,7 +51,6 @@ using namespace epee;
 #include "cryptonote_protocol/blobdatatype.h"
 #include "mnemonics/electrum-words.h"
 #include "common/i18n.h"
-#include "common/dns_utils.h"
 #include "common/util.h"
 #include "rapidjson/document.h"
 #include "rapidjson/writer.h"
@@ -2854,74 +2853,7 @@ std::vector<std::vector<cryptonote::tx_destination_entry>> split_amounts(
   return retVal;
 }
 } // anonymous namespace
-
-/**
- * @brief gets a monero address from the TXT record of a DNS entry
- *
- * gets the monero address from the TXT record of the DNS entry associated
- * with <url>.  If this lookup fails, or the TXT record does not contain an
- * XMR address in the correct format, returns an empty string.  <dnssec_valid>
- * will be set true or false according to whether or not the DNS query passes
- * DNSSEC validation.
- *
- * @param url the url to look up
- * @param dnssec_valid return-by-reference for DNSSEC status of query
- *
- * @return a monero address (as a string) or an empty string
- */
-std::vector<std::string> wallet2::addresses_from_url(const std::string& url, bool& dnssec_valid)
-{
-  std::vector<std::string> addresses;
-  // get txt records
-  bool dnssec_available, dnssec_isvalid;
-  std::string oa_addr = tools::DNSResolver::instance().get_dns_format_from_oa_address(url);
-  auto records = tools::DNSResolver::instance().get_txt_record(oa_addr, dnssec_available, dnssec_isvalid);
-
-  // TODO: update this to allow for conveying that dnssec was not available
-  if (dnssec_available && dnssec_isvalid)
-  {
-    dnssec_valid = true;
-  }
-  else dnssec_valid = false;
-
-  // for each txt record, try to find a monero address in it.
-  for (auto& rec : records)
-  {
-    std::string addr = address_from_txt_record(rec);
-    if (addr.size())
-    {
-      addresses.push_back(addr);
-    }
-  }
-
-  return addresses;
-}
-
 //----------------------------------------------------------------------------------------------------
-// TODO: parse the string in a less stupid way, probably with regex
-std::string wallet2::address_from_txt_record(const std::string& s)
-{
-  // make sure the txt record has "oa1:xmr" and find it
-  auto pos = s.find("oa1:xmr");
-
-  // search from there to find "recipient_address="
-  pos = s.find("recipient_address=", pos);
-
-  pos += 18; // move past "recipient_address="
-
-  // find the next semicolon
-  auto pos2 = s.find(";", pos);
-  if (pos2 != std::string::npos)
-  {
-    // length of address == 95, we can at least validate that much here
-    if (pos2 - pos == 95)
-    {
-      return s.substr(pos, 95);
-    }
-  }
-  return std::string();
-}
-
 crypto::hash wallet2::get_payment_id(const pending_tx &ptx) const
 {
   std::vector<tx_extra_field> tx_extra_fields;
diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h
index 54e26008b..b69c477e9 100644
--- a/src/wallet/wallet2.h
+++ b/src/wallet/wallet2.h
@@ -503,10 +503,6 @@ namespace tools
     static bool parse_short_payment_id(const std::string& payment_id_str, crypto::hash8& payment_id);
     static bool parse_payment_id(const std::string& payment_id_str, crypto::hash& payment_id);
 
-    static std::vector<std::string> addresses_from_url(const std::string& url, bool& dnssec_valid);
-
-    static std::string address_from_txt_record(const std::string& s);
-
     bool always_confirm_transfers() const { return m_always_confirm_transfers; }
     void always_confirm_transfers(bool always) { m_always_confirm_transfers = always; }
     bool store_tx_info() const { return m_store_tx_info; }
diff --git a/tests/unit_tests/address_from_url.cpp b/tests/unit_tests/address_from_url.cpp
index ff163dab9..ad3aca6b4 100644
--- a/tests/unit_tests/address_from_url.cpp
+++ b/tests/unit_tests/address_from_url.cpp
@@ -31,6 +31,7 @@
 #include "gtest/gtest.h"
 
 #include "wallet/wallet2.h"
+#include "common/dns_utils.h"
 #include <string>
 
 TEST(AddressFromTXT, Success)
@@ -42,7 +43,7 @@ TEST(AddressFromTXT, Success)
   txtr += addr;
   txtr += ";";
 
-  std::string res = tools::wallet2::address_from_txt_record(txtr);
+  std::string res = tools::dns_utils::address_from_txt_record(txtr);
 
   EXPECT_STREQ(addr.c_str(), res.c_str());
 
@@ -52,7 +53,7 @@ TEST(AddressFromTXT, Success)
 
   txtr2 += "more foobar";
 
-  res = tools::wallet2::address_from_txt_record(txtr2);
+  res = tools::dns_utils::address_from_txt_record(txtr2);
 
   EXPECT_STREQ(addr.c_str(), res.c_str());
 
@@ -61,7 +62,7 @@ TEST(AddressFromTXT, Success)
   txtr3 += addr;
   txtr3 += "; foobar";
 
-  res = tools::wallet2::address_from_txt_record(txtr3);
+  res = tools::dns_utils::address_from_txt_record(txtr3);
 
   EXPECT_STREQ(addr.c_str(), res.c_str());
 }
@@ -70,13 +71,13 @@ TEST(AddressFromTXT, Failure)
 {
   std::string txtr = "oa1:xmr recipient_address=not a real address";
 
-  std::string res = tools::wallet2::address_from_txt_record(txtr);
+  std::string res = tools::dns_utils::address_from_txt_record(txtr);
 
   ASSERT_STREQ("", res.c_str());
 
   txtr += ";";
 
-  res = tools::wallet2::address_from_txt_record(txtr);
+  res = tools::dns_utils::address_from_txt_record(txtr);
   ASSERT_STREQ("", res.c_str());
 }
 
@@ -86,7 +87,7 @@ TEST(AddressFromURL, Success)
   
   bool dnssec_result = false;
 
-  std::vector<std::string> addresses = tools::wallet2::addresses_from_url("donate.getmonero.org", dnssec_result);
+  std::vector<std::string> addresses = tools::dns_utils::addresses_from_url("donate.getmonero.org", dnssec_result);
 
   EXPECT_EQ(1, addresses.size());
   if (addresses.size() == 1)
@@ -95,7 +96,7 @@ TEST(AddressFromURL, Success)
   }
 
   // OpenAlias address with an @ instead of first .
-  addresses = tools::wallet2::addresses_from_url("donate@getmonero.org", dnssec_result);
+  addresses = tools::dns_utils::addresses_from_url("donate@getmonero.org", dnssec_result);
   EXPECT_EQ(1, addresses.size());
   if (addresses.size() == 1)
   {
@@ -107,7 +108,7 @@ TEST(AddressFromURL, Failure)
 {
   bool dnssec_result = false;
 
-  std::vector<std::string> addresses = tools::wallet2::addresses_from_url("example.invalid", dnssec_result);
+  std::vector<std::string> addresses = tools::dns_utils::addresses_from_url("example.invalid", dnssec_result);
 
   // for a non-existing domain such as "example.invalid", the non-existence is proved with NSEC records
   ASSERT_TRUE(dnssec_result);