silk/silkmvc/core/mimes.lua

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local default_mimes = {
["bmp"] = "image/bmp",
["jpg"] = "image/jpeg",
["jpeg"] = "image/jpeg",
["css"] = "text/css",
["md"] = "text/markdown",
["csv"] = "text/csv",
["pdf"] = "application/pdf",
["gif"] = "image/gif",
["html"] = "text/html",
["htm"] = "text/html",
["chtml"] = "text/html",
["json"] = "application/json",
["js"] = "application/javascript",
["png"] = "image/png",
["ppm"] = "image/x-portable-pixmap",
["rar"] = "application/x-rar-compressed",
["tiff"] = "image/tiff",
["tar"] = "application/x-tar",
["txt"] = "text/plain",
["ttf"] = "application/x-font-ttf",
["xhtml"] = "application/xhtml+xml",
["xml"] = "application/xml",
["zip"] = "application/zip",
["svg"] = "image/svg+xml",
["eot"] = "application/vnd.ms-fontobject",
["woff"] = "application/x-font-woff",
["woff2"] = "application/x-font-woff",
["otf"] = "application/x-font-otf",
["mp3"] = "audio/mpeg",
["mpeg"] = "audio/mpeg"
}
setmetatable(default_mimes, {
__index = function(this, key)
return "application/octet-stream"
end
})
function std.mime(ext)
return default_mimes[ext:lower()]
end
function std.extra_mime(name)
local ext = utils.ext(name)
if ext then
ext = ext:lower()
end
local mpath = __ROOT__ .. "/" .. "mimes.json"
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if WWW_ROOT and not ulib.exists(mpath) then
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LOG_DEBUG("No extra mimes found in %s", mpath)
mpath = WWW_ROOT .. "/" .. "mimes.json"
LOG_DEBUG("Trying to looking for extra mimes in: %s", mpath)
end
local xmimes = {}
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if ulib.exists(mpath) then
xmimes = JSON.decodeFile(mpath)
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else
LOG_DEBUG("No extra mimes")
end
if (name:find("Makefile$")) then
return "text/makefile", false
elseif ext == "php" then
return "text/php", false
elseif ext == "c" or ext == "h" then
return "text/c", false
elseif ext == "cpp" or ext == "hpp" then
return "text/cpp", false
elseif ext == "md" then
return "text/markdown", false
elseif ext == "lua" then
return "text/lua", false
elseif ext == "yml" then
return "application/x-yaml", false
elseif xmimes[ext] then
return xmimes[ext].mime, xmimes[ext].binary
-- elseif ext == "pgm" then return "image/x-portable-graymap", true
else
return "application/octet-stream", true
end
end
function std.mimeOf(name)
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if ulib.is_dir(name) then
return "dir"
end
local ext = utils.ext(name)
if not ext then
return "application/octet-stream", true
end
local mime = std.mime(ext)
if mime ~= "application/octet-stream" then
return mime
else
return std.extra_mime(name)
end
end
function std.sendFile(m)
local mime = std.mimeOf(m)
local finfo = ulib.file_stat(m)
local len = tostring(math.floor(finfo.size))
local len1 = tostring(math.floor(finfo.size - 1))
if mime == "audio/mpeg" then
std.status(200)
std.header("Pragma", "public")
std.header("Expires", "0")
std.header("Content-Type", mime)
std.header("Content-Length", len)
std.header("Content-Disposition", "inline; filename=" .. utils.basename(m))
std.header("Content-Range:", "bytes 0-" .. len1 .. "/" .. len)
std.header("Accept-Ranges", "bytes")
std.header("X-Pad", "avoid browser bug")
std.header("Content-Transfer-Encoding", "binary")
std.header("Cache-Control", "no-cache, no-store")
std.header("Connection", "Keep-Alive")
std.header_flush()
std.f(m)
else
if HEADER['If-Modified-Since'] and HEADER['If-Modified-Since'] == finfo.ctime then
std.status(304)
std.header_flush()
else
std.status(200)
std.header("Content-Type", mime)
-- std.header("Content-Length", len)
std.header("Cache-Control", "no-cache")
std.header("Last-Modified", finfo.ctime)
std.header_flush()
std.f(m)
end
end
end