wallet-rpc: watch-only and cold wallet features added

- unsigned_txset, signed_txset in transfer / submit_transfer / sign_transfer
- export_outputs, import_outputs

Squashed commits:
[f4d9f3d4] wallet-rpc: do_not_relay removed from submit_transfer
[5b16a86f] wallet-rpc: review-fix - method signature changes, renaming
[b7fbb10a] wallet-rpc: naming fixes (unsigned vs signed), consts renamed
[8c7d2727] wallet-rpc: sign_transfer added
[481d024a] wallet2: sign_tx splitted to work with strings and structs, more granular
[2a474db9] wallet-rpc: wallet2::load_unsigned_tx split to load from str, file
[b1e3a018] wallet-rpc: review fix, load_tx_from_str variable rename
[1f6373be] wallet-rpc: review fix: save_tx_to_{str,file}
[2a08eafc] wallet-rpc: review comments fixes
- redundant this removed from wallet2.cpp
- load_tx_from_str, load_tx_from_file
[43498052] wallet-rpc: submit_transfer added
[9c45d1ad] wallet-rpc: watch_only check, return unsigned_txset
[62831396] wallet2: added string variants to load_tx, save_tx

- analogously to save_multisig_tx
- required for monero-wallet-rpc to support watch-only wallet

1 files changed, 7 insertions, 0 deletions

diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h
index 61e6927bc..b5718627e 100644
--- a/src/wallet/wallet2.h
+++ b/src/wallet/wallet2.h
@@ -684,6 +684,7 @@ namespace tools
     void commit_tx(pending_tx& ptx_vector);
     void commit_tx(std::vector<pending_tx>& ptx_vector);
     bool save_tx(const std::vector<pending_tx>& ptx_vector, const std::string &filename) const;
+    std::string dump_tx_to_str(const std::vector<pending_tx> &ptx_vector) const;
     std::string save_multisig_tx(multisig_tx_set txs);
     bool save_multisig_tx(const multisig_tx_set &txs, const std::string &filename);
     std::string save_multisig_tx(const std::vector<pending_tx>& ptx_vector);
@@ -692,9 +693,13 @@ namespace tools
     bool sign_tx(const std::string &unsigned_filename, const std::string &signed_filename, std::vector<wallet2::pending_tx> &ptx, std::function<bool(const unsigned_tx_set&)> accept_func = NULL, bool export_raw = false);
     // sign unsigned tx. Takes unsigned_tx_set as argument. Used by GUI
     bool sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_filename, std::vector<wallet2::pending_tx> &ptx, bool export_raw = false);
+    bool sign_tx(unsigned_tx_set &exported_txs, std::vector<wallet2::pending_tx> &ptx, signed_tx_set &signed_txs);
+    std::string sign_tx_dump_to_str(unsigned_tx_set &exported_txs, std::vector<wallet2::pending_tx> &ptx, signed_tx_set &signed_txes);
     // load unsigned_tx_set from file. 
     bool load_unsigned_tx(const std::string &unsigned_filename, unsigned_tx_set &exported_txs) const;
+    bool parse_unsigned_tx_from_str(const std::string &unsigned_tx_st, unsigned_tx_set &exported_txs) const;
     bool load_tx(const std::string &signed_filename, std::vector<tools::wallet2::pending_tx> &ptx, std::function<bool(const signed_tx_set&)> accept_func = NULL);
+    bool parse_tx_from_str(const std::string &signed_tx_st, std::vector<tools::wallet2::pending_tx> &ptx, std::function<bool(const signed_tx_set &)> accept_func);
     std::vector<pending_tx> create_transactions(std::vector<cryptonote::tx_destination_entry> dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra, bool trusted_daemon);
     std::vector<wallet2::pending_tx> create_transactions_2(std::vector<cryptonote::tx_destination_entry> dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra, uint32_t subaddr_account, std::set<uint32_t> subaddr_indices, bool trusted_daemon);     // pass subaddr_indices by value on purpose
     std::vector<wallet2::pending_tx> create_transactions_all(uint64_t below, const cryptonote::account_public_address &address, bool is_subaddress, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra, uint32_t subaddr_account, std::set<uint32_t> subaddr_indices, bool trusted_daemon);
@@ -970,7 +975,9 @@ namespace tools
 
     // Import/Export wallet data
     std::vector<tools::wallet2::transfer_details> export_outputs() const;
+    std::string export_outputs_to_str() const;
     size_t import_outputs(const std::vector<tools::wallet2::transfer_details> &outputs);
+    size_t import_outputs_from_str(const std::string &outputs_st);
     payment_container export_payments() const;
     void import_payments(const payment_container &payments);
     void import_payments_out(const std::list<std::pair<crypto::hash,wallet2::confirmed_transfer_details>> &confirmed_payments);