1 files changed, 66 insertions, 0 deletions
diff --git a/common/file.lua b/common/file.lua
new file mode 100644
index 0000000..90c8ea2
--- /dev/null
+++ b/common/file.lua
@@ -0,0 +1,66 @@
+file = {}
+
+function string.split(self, sep)
+	if not sep then sep = "%s" end
+
+	local t = {}
+	for match in (self .. sep):gmatch("(.-)" .. sep) do
+		table.insert(t, match)
+	end
+
+	return t
+end
+
+function file.read(path)
+	local f = io.open(path, "r")
+	if not f then
+		return nil
+	end
+
+	local contents = f:read("*a")
+	f:close()
+
+	return contents
+end
+
+function file.write(path, contents)
+	local f = io.open(path, "w")
+	if not f then
+		return false
+	end
+
+	f:write(contents)
+	f:close()
+
+	return true
+end
+
+function file.process(uri, templates, params)
+	path = "/var/www/md" .. uri
+
+	local contents = file.read(path)
+	if not contents then
+		return nil
+	end
+
+	if templates then
+		for template, value in pairs(templates) do
+			contents = contents:gsub("%${" .. template .. "}", value)
+		end
+	end
+
+	local filename = os.tmpname()
+	file.write(filename, contents)
+
+	params = (params or ""):match("^([%a%d-=]*)$") or ""
+
+	local static_params = '--css /common.css -f markdown --standalone '
+	local cmd = 'pandoc ' .. params .. ' ' .. static_params .. ' ' .. filename
+	local handle = io.popen(cmd)
+	local html = handle:read("*a")
+	handle:close()
+
+	return html
+end
+
+return file