From dec1359e90e847c90629e43ef3744539e8fb41c8 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Wed, 22 Apr 2015 13:33:09 +0200
Subject: added base64 coding/decoding libary showing captcha in login page
 (not verifying yet)

---
 src/base64.cpp       |  0
 src/base64.hpp       |  4 ++++
 src/user.cpp         | 34 +++++++++++++++++++++++++++++++++-
 src/user_content.hpp |  3 ++-
 4 files changed, 39 insertions(+), 2 deletions(-)
 create mode 100644 src/base64.cpp
 create mode 100644 src/base64.hpp

(limited to 'src')

diff --git a/src/base64.cpp b/src/base64.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/src/base64.hpp b/src/base64.hpp
new file mode 100644
index 0000000..1c55655
--- /dev/null
+++ b/src/base64.hpp
@@ -0,0 +1,4 @@
+#ifndef BASE64_HPP
+#define BASE64_HPP
+
+#endif
diff --git a/src/user.cpp b/src/user.cpp
index 8f18706..d94cd6f 100644
--- a/src/user.cpp
+++ b/src/user.cpp
@@ -7,6 +7,8 @@
 #include <cppdb/frontend.h>
 #include <cppcms/session_interface.h>
 #include <booster/posix_time.h>
+#include <b64/encode.h>
+#include <sstream>
 
 namespace apps {
 
@@ -81,10 +83,40 @@ bool user::check_login( std::string user, std::string password )
 	return true;
 }
 
+#define GIFSIZE 17646
+extern "C" {
+	const int gifsize = GIFSIZE;
+	void captcha( unsigned char im[70*200], unsigned char l[6]);
+	void makegif(unsigned char im[70*200], unsigned char gif[gifsize]);
+}
+
 void user::ini( content::user &c )
 {
 	master::ini( c );
-	c.captcha = ">> CAPTCHA <<";
+	unsigned char l[6];
+	unsigned char *im = new unsigned char[70*200];
+	unsigned char *gif = new unsigned char[gifsize];
+
+	captcha( im, l );
+	c.captcha_text = std::string( (char *)l );
+
+	std::ostringstream raws( std::stringstream::out | std::stringstream::binary );
+	makegif( im, gif );
+	raws.write( (char *)gif, gifsize );
+	std::string raw = raws.str( );
+	
+	std::istringstream in( std::ios_base::in | std::ios_base::binary );
+	in.str( raw );
+	
+	base64::encoder E;
+	std::string base_s;
+	base_s.reserve( 3 * gifsize );
+	std::ostringstream base( base_s, std::stringstream::out | std::stringstream::binary );
+	E.encode( in, base );
+	c.captcha_base64 = base.str( );
+	
+	delete gif;
+	delete im;
 }
 
 } // namespace apps
diff --git a/src/user_content.hpp b/src/user_content.hpp
index 887c61a..857a15c 100644
--- a/src/user_content.hpp
+++ b/src/user_content.hpp
@@ -22,7 +22,8 @@ struct login_form : public cppcms::form {
 
 struct user : public master {
 	login_form login;
-	std::string captcha;
+	std::string captcha_text;
+	std::string captcha_base64;
 	
 	public:
 		user( apps::strusCms &cms );
-- 
cgit v1.2.3-54-g00ecf