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local wsapi = require "wsapi"
local wsreq = require "wsapi.request"
local wsres = require "wsapi.response"
local wsutil = require "wsapi.util"
local orm
local orpages
local _M = _M or {}
_M._NAME = "orbit"
_M._VERSION = "2.2.1"
_M._COPYRIGHT = "Copyright (C) 2007-2013 Kepler Project"
_M._DESCRIPTION = "MVC Web Development for the Kepler platform"
local REPARSE = {}
_M.mime_types = {
ez = "application/andrew-inset",
atom = "application/atom+xml",
hqx = "application/mac-binhex40",
cpt = "application/mac-compactpro",
mathml = "application/mathml+xml",
doc = "application/msword",
bin = "application/octet-stream",
dms = "application/octet-stream",
lha = "application/octet-stream",
lzh = "application/octet-stream",
exe = "application/octet-stream",
class = "application/octet-stream",
so = "application/octet-stream",
dll = "application/octet-stream",
dmg = "application/octet-stream",
oda = "application/oda",
ogg = "application/ogg",
pdf = "application/pdf",
ai = "application/postscript",
eps = "application/postscript",
ps = "application/postscript",
rdf = "application/rdf+xml",
smi = "application/smil",
smil = "application/smil",
gram = "application/srgs",
grxml = "application/srgs+xml",
mif = "application/vnd.mif",
xul = "application/vnd.mozilla.xul+xml",
xls = "application/vnd.ms-excel",
ppt = "application/vnd.ms-powerpoint",
rm = "application/vnd.rn-realmedia",
wbxml = "application/vnd.wap.wbxml",
wmlc = "application/vnd.wap.wmlc",
wmlsc = "application/vnd.wap.wmlscriptc",
vxml = "application/voicexml+xml",
bcpio = "application/x-bcpio",
vcd = "application/x-cdlink",
pgn = "application/x-chess-pgn",
cpio = "application/x-cpio",
csh = "application/x-csh",
dcr = "application/x-director",
dir = "application/x-director",
dxr = "application/x-director",
dvi = "application/x-dvi",
spl = "application/x-futuresplash",
gtar = "application/x-gtar",
hdf = "application/x-hdf",
xhtml = "application/xhtml+xml",
xht = "application/xhtml+xml",
js = "application/x-javascript",
skp = "application/x-koan",
skd = "application/x-koan",
skt = "application/x-koan",
skm = "application/x-koan",
latex = "application/x-latex",
xml = "application/xml",
xsl = "application/xml",
dtd = "application/xml-dtd",
nc = "application/x-netcdf",
cdf = "application/x-netcdf",
sh = "application/x-sh",
shar = "application/x-shar",
swf = "application/x-shockwave-flash",
xslt = "application/xslt+xml",
sit = "application/x-stuffit",
sv4cpio = "application/x-sv4cpio",
sv4crc = "application/x-sv4crc",
tar = "application/x-tar",
tcl = "application/x-tcl",
tex = "application/x-tex",
texinfo = "application/x-texinfo",
texi = "application/x-texinfo",
t = "application/x-troff",
tr = "application/x-troff",
roff = "application/x-troff",
man = "application/x-troff-man",
me = "application/x-troff-me",
ms = "application/x-troff-ms",
ustar = "application/x-ustar",
src = "application/x-wais-source",
zip = "application/zip",
au = "audio/basic",
snd = "audio/basic",
mid = "audio/midi",
midi = "audio/midi",
kar = "audio/midi",
mpga = "audio/mpeg",
mp2 = "audio/mpeg",
mp3 = "audio/mpeg",
aif = "audio/x-aiff",
aiff = "audio/x-aiff",
aifc = "audio/x-aiff",
m3u = "audio/x-mpegurl",
ram = "audio/x-pn-realaudio",
ra = "audio/x-pn-realaudio",
wav = "audio/x-wav",
pdb = "chemical/x-pdb",
xyz = "chemical/x-xyz",
bmp = "image/bmp",
cgm = "image/cgm",
gif = "image/gif",
ief = "image/ief",
jpeg = "image/jpeg",
jpg = "image/jpeg",
jpe = "image/jpeg",
png = "image/png",
svg = "image/svg+xml",
svgz = "image/svg+xml",
tiff = "image/tiff",
tif = "image/tiff",
djvu = "image/vnd.djvu",
djv = "image/vnd.djvu",
wbmp = "image/vnd.wap.wbmp",
ras = "image/x-cmu-raster",
ico = "image/x-icon",
pnm = "image/x-portable-anymap",
pbm = "image/x-portable-bitmap",
pgm = "image/x-portable-graymap",
ppm = "image/x-portable-pixmap",
rgb = "image/x-rgb",
xbm = "image/x-xbitmap",
xpm = "image/x-xpixmap",
xwd = "image/x-xwindowdump",
igs = "model/iges",
iges = "model/iges",
msh = "model/mesh",
mesh = "model/mesh",
silo = "model/mesh",
wrl = "model/vrml",
vrml = "model/vrml",
ics = "text/calendar",
ifb = "text/calendar",
css = "text/css",
html = "text/html",
htm = "text/html",
asc = "text/plain",
txt = "text/plain",
rtx = "text/richtext",
rtf = "text/rtf",
sgml = "text/sgml",
sgm = "text/sgml",
tsv = "text/tab-separated-values",
wml = "text/vnd.wap.wml",
wmls = "text/vnd.wap.wmlscript",
etx = "text/x-setext",
mpeg = "video/mpeg",
mpg = "video/mpeg",
mpe = "video/mpeg",
qt = "video/quicktime",
mov = "video/quicktime",
mxu = "video/vnd.mpegurl",
avi = "video/x-msvideo",
movie = "video/x-sgi-movie",
ice = "x-conference/x-cooltalk",
rss = "application/rss+xml",
atom = "application/atom+xml",
json = "application/json"
}
_M.app_module_methods = {}
local app_module_methods = _M.app_module_methods
_M.web_methods = {}
local web_methods = _M.web_methods
local function flatten(t)
local res = {}
for _, item in ipairs(t) do
if type(item) == "table" then
res[#res + 1] = flatten(item)
else
res[#res + 1] = item
end
end
return table.concat(res)
end
local function make_tag(name, data, class)
if class then class = ' class="' .. class .. '"' else class = "" end
if not data then
return "<" .. name .. class .. "/>"
elseif type(data) == "string" then
return "<" .. name .. class .. ">" .. data ..
"</" .. name .. ">"
else
local attrs = {}
for k, v in pairs(data) do
if type(k) == "string" then
table.insert(attrs, k .. '="' .. tostring(v) .. '"')
end
end
local open_tag = "<" .. name .. class .. " " ..
table.concat(attrs, " ") .. ">"
local close_tag = "</" .. name .. ">"
return open_tag .. flatten(data) .. close_tag
end
end
function _M.new(app_module)
if type(app_module) == "string" then
app_module = { _NAME = app_module }
else
app_module = app_module or {}
end
for k, v in pairs(app_module_methods) do
app_module[k] = v
end
app_module.run = function (wsapi_env)
return _M.run(app_module, wsapi_env)
end
app_module.real_path = wsapi.app_path or "."
app_module.mapper = { default = true }
app_module.not_found = function (web)
web.status = "404 Not Found"
return [[<html>
<head><title>Not Found</title></head>
<body><p>Not found!</p></body></html>]]
end
app_module.server_error = function (web, msg)
web.status = "500 Server Error"
return [[<html>
<head><title>Server Error</title></head>
<body><pre>]] .. msg .. [[</pre></body></html>]]
end
app_module.reparse = REPARSE
app_module.dispatch_table = { get = {}, post = {}, put = {}, delete = {} }
return app_module
end
local function serve_file(app_module)
return function (web)
local filename = web.real_path .. web.path_info
return app_module:serve_static(web, filename)
end
end
function app_module_methods.dispatch_get(app_module, func, ...)
for _, pat in ipairs{ ... } do
table.insert(app_module.dispatch_table.get, { pattern = pat,
handler = func })
end
end
function app_module_methods.dispatch_post(app_module, func, ...)
for _, pat in ipairs{ ... } do
table.insert(app_module.dispatch_table.post, { pattern = pat,
handler = func })
end
end
function app_module_methods.dispatch_put(app_module, func, ...)
for _, pat in ipairs{ ... } do
table.insert(app_module.dispatch_table.put, { pattern = pat,
handler = func })
end
end
function app_module_methods.dispatch_delete(app_module, func, ...)
for _, pat in ipairs{ ... } do
table.insert(app_module.dispatch_table.delete, { pattern = pat,
handler = func })
end
end
function app_module_methods.dispatch_wsapi(app_module, func, ...)
for _, pat in ipairs{ ... } do
for _, tab in pairs(app_module.dispatch_table) do
table.insert(tab, { pattern = pat, handler = func, wsapi = true })
end
end
end
function app_module_methods.dispatch_static(app_module, ...)
app_module:dispatch_get(serve_file(app_module), ...)
end
function app_module_methods.serve_static(app_module, web, filename)
local ext = string.match(filename, "%.([^%.]+)$")
if app_module.use_xsendfile then
web.headers["Content-Type"] = _M.mime_types[ext] or
"application/octet-stream"
web.headers["X-Sendfile"] = filename
return "xsendfile"
else
local file = io.open(filename, "rb")
if not file then
return app_module.not_found(web)
else
web.headers["Content-Type"] = _M.mime_types[ext] or
"application/octet-stream"
local contents = file:read("*a")
file:close()
return contents
end
end
end
local function newtag(name)
local tag = {}
setmetatable(tag, {
__call = function (_, data)
return make_tag(name, data)
end,
__index = function(_, class)
return function (data)
return make_tag(name, data, class)
end
end
})
return tag
end
local function htmlify_func(func)
local tags = {}
local env = { H = function (name)
local tag = tags[name]
if not tag then
tag = newtag(name)
tags[name] = tag
end
return tag
end
}
local old_env = getfenv(func)
setmetatable(env, { __index = function (env, name)
if old_env[name] then
return old_env[name]
else
local tag = newtag(name)
rawset(env, name, tag)
return tag
end
end })
setfenv(func, env)
end
function _M.htmlify(app_module, ...)
if type(app_module) == "function" then
htmlify_func(app_module)
for _, func in ipairs{...} do
htmlify_func(func)
end
else
local patterns = { ... }
for _, patt in ipairs(patterns) do
if type(patt) == "function" then
htmlify_func(patt)
else
for name, func in pairs(app_module) do
if string.match(name, "^" .. patt .. "$") and
type(func) == "function" then
htmlify_func(func)
end
end
end
end
end
end
app_module_methods.htmlify = _M.htmlify
function app_module_methods.model(app_module, ...)
if app_module.mapper.default then
local table_prefix = (app_module._NAME and app_module._NAME .. "_") or ""
if not orm then
orm = require "orbit.model"
end
app_module.mapper = orm.new(app_module.mapper.table_prefix or table_prefix,
app_module.mapper.conn, app_module.mapper.driver, app_module.mapper.logging)
end
return app_module.mapper:new(...)
end
function web_methods:redirect(url)
self.status = "302 Found"
self.headers["Location"] = url
return "redirect"
end
function web_methods:link(url, params)
local link = {}
local prefix = self.prefix or ""
local suffix = self.suffix or ""
for k, v in pairs(params or {}) do
link[#link + 1] = k .. "=" .. wsutil.url_encode(v)
end
local qs = table.concat(link, "&")
if qs and qs ~= "" then
return prefix .. url .. suffix .. "?" .. qs
else
return prefix .. url .. suffix
end
end
function web_methods:static_link(url)
local prefix = self.prefix or self.script_name
local is_script = prefix:match("(%.%w+)$")
if not is_script then return self:link(url) end
local vpath = prefix:match("(.*)/") or ""
return vpath .. url
end
function web_methods:empty(s)
return not s or string.match(s, "^%s*$")
end
function web_methods:content_type(s)
self.headers["Content-Type"] = s
end
function web_methods:page(name, env)
if not orpages then
orpages = require "orbit.pages"
end
local filename
if name:sub(1, 1) == "/" then
filename = self.doc_root .. name
else
filename = self.real_path .. "/" .. name
end
local template = orpages.load(filename)
if template then
return orpages.fill(self, template, env)
end
end
function web_methods:page_inline(contents, env)
if not orpages then
orpages = require "orbit.pages"
end
local template = orpages.load(nil, contents)
if template then
return orpages.fill(self, template, env)
end
end
function web_methods:empty_param(param)
return self:empty(self.input[param])
end
for name, func in pairs(wsutil) do
web_methods[name] = function (self, ...)
return func(...)
end
end
local function dispatcher(app_module, method, path, index)
index = index or 0
if #app_module.dispatch_table[method] == 0 then
return app_module["handle_" .. method], {}
else
for index = index+1, #app_module.dispatch_table[method] do
local item = app_module.dispatch_table[method][index]
local captures
if type(item.pattern) == "string" then
captures = { string.match(path, "^" .. item.pattern .. "$") }
else
captures = { item.pattern:match(path) }
end
if #captures > 0 then
for i = 1, #captures do
if type(captures[i]) == "string" then
captures[i] = wsutil.url_decode(captures[i])
end
end
return item.handler, captures, item.wsapi, index
end
end
end
end
local function make_web_object(app_module, wsapi_env)
local web = { status = "200 Ok", response = "",
headers = { ["Content-Type"]= "text/html" },
cookies = {} }
setmetatable(web, { __index = web_methods })
web.vars = wsapi_env
web.prefix = app_module.prefix or wsapi_env.SCRIPT_NAME
web.suffix = app_module.suffix
if wsapi_env.APP_PATH == "" then
web.real_path = app_module.real_path or "."
else
web.real_path = wsapi_env.APP_PATH
end
web.doc_root = wsapi_env.DOCUMENT_ROOT
local req = wsreq.new(wsapi_env)
local res = wsres.new(web.status, web.headers)
web.set_cookie = function (_, name, value)
res:set_cookie(name, value)
end
web.delete_cookie = function (_, name, path)
res:delete_cookie(name, path)
end
web.path_info = req.path_info
web.path_translated = wsapi_env.PATH_TRANSLATED
if web.path_translated == "" then web.path_translated = wsapi_env.SCRIPT_FILENAME end
web.script_name = wsapi_env.SCRIPT_NAME
web.method = string.lower(req.method)
web.input, web.cookies = req.params, req.cookies
web.GET, web.POST = req.GET, req.POST
return web, res
end
function _M.run(app_module, wsapi_env)
local handler, captures, wsapi_handler, index = dispatcher(app_module,
string.lower(wsapi_env.REQUEST_METHOD),
wsapi_env.PATH_INFO)
handler = handler or app_module.not_found
captures = captures or {}
if wsapi_handler then
local ok, status, headers, res = xpcall(function ()
return handler(wsapi_env, unpack(captures))
end, debug.traceback)
if ok then
return status, headers, res
else
handler, captures = app_module.server_error, { status }
end
end
local web, res = make_web_object(app_module, wsapi_env)
repeat
local reparse = false
local ok, response = xpcall(function ()
return handler(web, unpack(captures))
end, function(msg) return debug.traceback(msg) end)
if not ok then
res.status = "500 Internal Server Error"
res:write(app_module.server_error(web, response))
else
if response == REPARSE then
reparse = true
handler, captures, wsapi_handler, index = dispatcher(app_module,
string.lower(wsapi_env.REQUEST_METHOD),
wsapi_env.PATH_INFO, index)
handler, captures = handler or app_module.not_found, captures or {}
if wsapi_handler then
error("cannot reparse to WSAPI handler")
end
else
res.status = web.status
res:write(response)
end
end
until not reparse
return res:finish()
end
return _M
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