From 71d4221af2604850363ed890949fe5227af85cd3 Mon Sep 17 00:00:00 2001
From: Jeff Becker <ampernand@gmail.com>
Date: Wed, 5 Oct 2016 10:06:06 -0400
Subject: [PATCH] add keyinfo tool

---
 .gitignore                        | 10 ++++-
 Makefile                          |  8 +++-
 contrib/tools/Makefile            |  7 ++++
 contrib/tools/README.md           |  6 +++
 contrib/tools/keyinfo/Makefile    |  8 ++++
 contrib/tools/keyinfo/README.md   |  5 +++
 contrib/tools/keyinfo/keyinfo.cpp | 70 +++++++++++++++++++++++++++++++
 7 files changed, 112 insertions(+), 2 deletions(-)
 create mode 100644 contrib/tools/Makefile
 create mode 100644 contrib/tools/README.md
 create mode 100644 contrib/tools/keyinfo/Makefile
 create mode 100644 contrib/tools/keyinfo/README.md
 create mode 100644 contrib/tools/keyinfo/keyinfo.cpp

diff --git a/.gitignore b/.gitignore
index b6cffd15..73297488 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,7 +14,7 @@ netDb
 autom4te.cache
 .deps
 stamp-h1
-Makefile
+#Makefile
 config.h
 config.h.in~
 config.log
@@ -238,3 +238,11 @@ pip-log.txt
 # Sphinx
 docs/_build
 /androidIdea/
+
+
+# emacs files
+*~
+*\#*
+
+# gdb files
+.gdb_history
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 147bedd4..c68b977e 100644
--- a/Makefile
+++ b/Makefile
@@ -80,7 +80,13 @@ $(ARLIB): $(patsubst %.cpp,obj/%.o,$(LIB_SRC))
 $(ARLIB_CLIENT): $(patsubst %.cpp,obj/%.o,$(LIB_CLIENT_SRC))
 	ar -r $@ $^
 
-clean:
+tools: $(ARLIB)
+	$(MAKE) -C contrib/tools/
+
+clean-tools:
+	$(MAKE) -C contrib/tools/ clean
+
+clean: clean-tools
 	rm -rf obj
 	rm -rf docs/generated
 	$(RM) $(I2PD) $(SHLIB) $(ARLIB) $(SHLIB_CLIENT) $(ARLIB_CLIENT)
diff --git a/contrib/tools/Makefile b/contrib/tools/Makefile
new file mode 100644
index 00000000..6c60bb59
--- /dev/null
+++ b/contrib/tools/Makefile
@@ -0,0 +1,7 @@
+
+
+all:
+	$(MAKE) -C keyinfo keyinfo
+
+clean:
+	$(MAKE) -C keyinfo clean
diff --git a/contrib/tools/README.md b/contrib/tools/README.md
new file mode 100644
index 00000000..e598adfa
--- /dev/null
+++ b/contrib/tools/README.md
@@ -0,0 +1,6 @@
+Collection of i2pd related tools
+
+# Buildling
+
+
+run `make tools` in the root of the repo
diff --git a/contrib/tools/keyinfo/Makefile b/contrib/tools/keyinfo/Makefile
new file mode 100644
index 00000000..44a13ff7
--- /dev/null
+++ b/contrib/tools/keyinfo/Makefile
@@ -0,0 +1,8 @@
+CXXFLAGS = -I ../../../
+all: keyinfo
+
+keyinfo:
+	$(CXX) -o keyinfo keyinfo.cpp $(CXXFLAGS) -std=c++11 ../../../libi2pd.a -lssl -lcrypto -lboost_system
+
+clean:
+	$(RM) keyinfo
diff --git a/contrib/tools/keyinfo/README.md b/contrib/tools/keyinfo/README.md
new file mode 100644
index 00000000..b3c39a4b
--- /dev/null
+++ b/contrib/tools/keyinfo/README.md
@@ -0,0 +1,5 @@
+# keyinfo
+
+print information about a private key file
+
+
diff --git a/contrib/tools/keyinfo/keyinfo.cpp b/contrib/tools/keyinfo/keyinfo.cpp
new file mode 100644
index 00000000..6b6689c6
--- /dev/null
+++ b/contrib/tools/keyinfo/keyinfo.cpp
@@ -0,0 +1,70 @@
+#include "Identity.h"
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+#include <unistd.h>
+
+int main(int argc, char * argv[])
+{
+  if(argc == 1) {
+    std::cout << "usage: " << argv[0] << " [-v] [-d] privatekey.dat" << std::endl;
+    return -1;
+  }
+  int opt;
+  bool print_full = false;
+  bool verbose = false;
+  while((opt = getopt(argc, argv, "vd"))!=-1) {
+    switch(opt){ 
+    case 'v':
+      verbose = true;
+      break;
+    case 'd':
+      print_full = true;
+      break;
+    default:
+      std::cout << "usage: " << argv[0] << " [-v] [-d] privatekey.dat" << std::endl;
+      return -1;
+    }
+  }
+  std::string fname(argv[optind]);
+  i2p::data::PrivateKeys keys;
+  {
+    std::vector<uint8_t> buff;
+    std::ifstream inf;
+    inf.open(fname);
+    if (!inf.is_open()) {
+      std::cout << "cannot open private key file " << fname << std::endl;
+      return 2;
+    }
+    inf.seekg(0, std::ios::end);
+    const std::size_t len = inf.tellg();
+    inf.seekg(0, std::ios::beg);
+    buff.resize(len);
+    inf.read((char*)buff.data(), buff.size());
+    if (!keys.FromBuffer(buff.data(), buff.size())) {
+      std::cout << "bad key file format" << std::endl;
+      return 3;
+    }
+  }
+  auto dest = keys.GetPublic();
+  if(!dest) {
+    std::cout << "failed to extract public key" << std::endl;
+    return 3;
+  }
+  
+  const auto & ident = dest->GetIdentHash();
+  if (verbose) {
+    std::cout << "Destination: " << dest->ToBase64() << std::endl;
+    std::cout << "Destination Hash: " << ident.ToBase64() << std::endl;
+    std::cout << "B32 Address: " << ident.ToBase32() << ".b32.i2p" << std::endl;
+    std::cout << "Signature Type: " << (int) dest->GetSigningKeyType() << std::endl;
+    std::cout << "Encryption Type: " << (int) dest->GetCryptoKeyType() << std::endl;
+  } else {
+    if(print_full) {
+      std::cout << dest->ToBase64() << std::endl;
+    } else {
+      std::cout << ident.ToBase32() << ".b32.i2p" << std::endl;
+    }
+  }
+}