From 8049367f4349662c3952a53144b52704a1b0ec93 Mon Sep 17 00:00:00 2001 From: Dennis Eriksen Date: Thu, 29 Jun 2023 22:10:08 +0200 Subject: initial commit - it sort of works a bit --- src/cgidebug.rs | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 src/cgidebug.rs (limited to 'src/cgidebug.rs') diff --git a/src/cgidebug.rs b/src/cgidebug.rs new file mode 100644 index 0000000..afdc7ca --- /dev/null +++ b/src/cgidebug.rs @@ -0,0 +1,81 @@ +use std::io::Write; +use std::env; +use std::collections::btree_map::BTreeMap; + +fn write_stderr( msg : String ) { + let mut stderr = std::io::stderr(); + write!(&mut stderr, "{}", msg).unwrap(); +} + +fn write_stderr_s( msg : &str ) { + write_stderr( msg.to_string() ); +} + +fn write_stdout( msg : String ) { + let mut stdout = std::io::stdout(); + write!(&mut stdout, "{}", msg).unwrap(); +} + +fn write_stdout_s( msg : &str ) { + write_stdout( msg.to_string() ); +} + +fn html_escape( msg : String ) -> String { + let mut copy : String = String::with_capacity( msg.len() ); + + for thechar in msg.chars() { + if thechar == '&' { + copy.push_str( "&" ); + } else if thechar == '<' { + copy.push_str( "<" ); + } else if thechar == '>' { + copy.push_str( ">" ); + } else if thechar == '\"' { + copy.push_str( """ ); + } else { + copy.push( thechar ); + } + } + + return copy; +} + +fn main() { + write_stdout_s( "Status: 301 Moved Permanently\n" ); + write_stdout_s( "Location: https://www.vg.no\n" ); + write_stdout_s( "Content-type: text/html\n" ); + write_stdout_s( "\n" ); + write_stdout_s( "\n" ); + write_stdout_s( " \n" ); + write_stdout_s( " Rust CGI Test\n" ); + write_stdout_s( " \n" ); + write_stdout_s( " \n" ); + write_stdout_s( " \n" ); + write_stdout_s( "

Environment

\n" ); + write_stdout_s( " \n" ); + write_stdout_s( " \n" ); + + // copy environment into a BTreeMap which is sorted + let mut sortedmap : BTreeMap = BTreeMap::new(); + for (key, value) in env::vars() { + sortedmap.insert( key, value ); + } + + // output environment into HTML table + for (key, value) in sortedmap { + write_stdout( + format!( + " \n", + html_escape( key ), + html_escape( value ) + ) + ); + } + write_stdout_s( "

Key	Value
{}	{}

\n" ); + write_stdout_s( " \n" ); + write_stdout_s( "\n" ); +} -- cgit v1.2.3