write a crappy little cgi program for form processing

1 files changed, 40 insertions, 0 deletions

diff --git a/src/cgi/submit.zig b/src/cgi/submit.zig
new file mode 100644
index 0000000..b94c546
--- /dev/null
+++ b/src/cgi/submit.zig
@@ -0,0 +1,40 @@
+const std = @import("std");
+
+pub fn main(init: std.process.Init) !void {
+    const query_string = init.environ_map.get("QUERY_STRING").?;
+    var decoded = try init.gpa.alloc(u8, query_string.len);
+    @memcpy(decoded, query_string);
+    decoded = std.Uri.percentDecodeInPlace(decoded);
+    std.mem.replaceScalar(u8, decoded, '+', ' ');
+
+    // Parse the query string.
+    var args_map = std.StringHashMap([]const u8).init(init.gpa);
+    defer args_map.deinit();
+    var args = std.mem.splitScalar(u8, decoded, '&');
+    while (args.next()) |arg| {
+        const arg_and_value = std.mem.cutScalar(u8, arg, '=').?;
+        try args_map.put(arg_and_value[0], arg_and_value[1]);
+    }
+
+    const out_path = init.environ_map.get("OUT_PATH").?;
+    const out_file = try std.Io.Dir.createFileAbsolute(init.io, out_path, .{ .truncate = false });
+    defer out_file.close(init.io);
+    const current_size = (try out_file.stat(init.io)).size;
+    var buf: [128]u8 = undefined;
+    var writer = out_file.writer(init.io, &buf);
+    if (current_size == 0) {
+        try writer.interface.print("name,email,website,about\r\n", .{});
+    } else {
+	    try writer.seekTo(current_size);
+    }
+    try writer.interface.print("{s},{s},{s},{s}\r\n", .{
+        args_map.get("name").?,
+        args_map.get("email").?,
+        args_map.get("website").?,
+        args_map.get("about").?,
+    });
+    try writer.interface.flush();
+
+    // redirect back to the homepage
+    try std.Io.File.stdout().writeStreamingAll(init.io, "HTTP/1.0 302 Found\r\nLocation: https://eviltransgenders.club/join\r\n\r\n");
+}