add https client and server support by bios

lualib/http/tlshelper.lua

@@ -0,0 +1,94 @@
+local socket = require "http.sockethelper"
+local c = require "ltls.c"
+
+local tlshelper = {}
+
+function tlshelper.init_requestfunc(fd, tls_ctx)
+    local readfunc = socket.readfunc(fd)
+    local writefunc = socket.writefunc(fd)
+    return function ()
+        local ds1 = tls_ctx:handshake()
+        writefunc(ds1)
+        while not tls_ctx:finished() do
+            local ds2 = readfunc()
+            local ds3 = tls_ctx:handshake(ds2)
+            if ds3 then
+                writefunc(ds3)
+            end
+        end
+    end
+end
+
+
+function tlshelper.init_responsefunc(fd, tls_ctx)
+    local readfunc = socket.readfunc(fd)
+    local writefunc = socket.writefunc(fd)
+    return function ()
+        while not tls_ctx:finished() do
+            local ds1 = readfunc()
+            local ds2 = tls_ctx:handshake(ds1)
+            if ds2 then
+                writefunc(ds2)
+            end
+        end
+        local ds3 = tls_ctx:write()
+        writefunc(ds3)
+    end
+end
+
+function tlshelper.closefunc(tls_ctx)
+    return function ()
+        tls_ctx:close()
+    end
+end
+
+function tlshelper.readfunc(fd, tls_ctx)
+    local readfunc = socket.readfunc(fd)
+    local read_buff = ""
+    return function (sz)
+        if not sz then
+            local s = ""
+            if #read_buff == 0 then
+                local ds = readfunc(sz)
+                s = tls_ctx:read(ds)
+            end
+            return read_buff .. s
+        else
+            while #read_buff < sz do
+                local ds = readfunc()
+                local s = tls_ctx:read(ds)
+                read_buff = read_buff .. s
+            end
+            local  s = string.sub(read_buff, 1, sz)
+            read_buff = string.sub(read_buff, sz+1, #read_buff)
+            return s
+        end
+    end
+end
+
+function tlshelper.writefunc(fd, tls_ctx)
+    local writefunc = socket.writefunc(fd)
+    return function (s)
+        local ds = tls_ctx:write(s)
+        return writefunc(ds)
+    end
+end
+
+function tlshelper.readallfunc(fd, tls_ctx)
+    local readfunc = socket.readfunc(fd)
+    return function ()
+        local ds = socket.readall(fd)
+        local s = tls_ctx:read(ds)
+        return s
+    end
+end
+
+function tlshelper.newctx()
+    return c.newctx()
+end
+
+function tlshelper.newtls(method, ssl_ctx)
+    return c.newtls(method, ssl_ctx)
+end
+
+return tlshelper