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Merge pull request #256 from ewestbrook/luasocket254

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url.lua:absolute_path(): fix issue #254
This commit is contained in:
Diego Nehab 2018-08-22 14:18:43 -03:00 committed by GitHub
commit 648d81281f
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2 changed files with 82 additions and 26 deletions
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64
src/url.lua
View File

@ -76,6 +76,34 @@ function _M.unescape(s)
end)) end))
end end
-----------------------------------------------------------------------------
-- Removes '..' and '.' components appropriately from a path.
-- Input
-- path
-- Returns
-- dot-normalized path
local function remove_dot_components(path)
local marker = string.char(1)
repeat
local was = path
path = path:gsub('//', '/'..marker..'/', 1)
until path == was
repeat
local was = path
path = path:gsub('/%./', '/', 1)
until path == was
repeat
local was = path
path = path:gsub('[^/]+/%.%./([^/]+)', '%1', 1)
until path == was
path = path:gsub('[^/]+/%.%./*$', '')
path = path:gsub('/%.%.$', '/')
path = path:gsub('/%.$', '/')
path = path:gsub('^/%.%./', '/')
path = path:gsub(marker, '')
return path
end
----------------------------------------------------------------------------- -----------------------------------------------------------------------------
-- Builds a path from a base path and a relative path -- Builds a path from a base path and a relative path
-- Input -- Input
@ -85,23 +113,12 @@ end
-- corresponding absolute path -- corresponding absolute path
----------------------------------------------------------------------------- -----------------------------------------------------------------------------
local function absolute_path(base_path, relative_path) local function absolute_path(base_path, relative_path)
if string.sub(relative_path, 1, 1) == "/" then return relative_path end if string.sub(relative_path, 1, 1) == "/" then
local path = string.gsub(base_path, "[^/]*$", "") return remove_dot_components(relative_path) end
path = path .. relative_path base_path = base_path:gsub("[^/]*$", "")
path = string.gsub(path, "([^/]*%./)", function (s) if not base_path:find'/$' then base_path = base_path .. '/' end
if s ~= "./" then return s else return "" end local path = base_path .. relative_path
end) path = remove_dot_components(path)
path = string.gsub(path, "/%.$", "/")
local reduced
while reduced ~= path do
reduced = path
path = string.gsub(reduced, "([^/]*/%.%./)", function (s)
if s ~= "../../" then return "" else return s end
end)
end
path = string.gsub(reduced, "([^/]*/%.%.)$", function (s)
if s ~= "../.." then return "" else return s end
end)
return path return path
end end
@ -227,10 +244,14 @@ function _M.absolute(base_url, relative_url)
else else
base_parsed = _M.parse(base_url) base_parsed = _M.parse(base_url)
end end
local result
local relative_parsed = _M.parse(relative_url) local relative_parsed = _M.parse(relative_url)
if not base_parsed then return relative_url if not base_parsed then
elseif not relative_parsed then return base_url result = relative_url
elseif relative_parsed.scheme then return relative_url elseif not relative_parsed then
result = base_url
elseif relative_parsed.scheme then
result = relative_url
else else
relative_parsed.scheme = base_parsed.scheme relative_parsed.scheme = base_parsed.scheme
if not relative_parsed.authority then if not relative_parsed.authority then
@ -248,8 +269,9 @@ function _M.absolute(base_url, relative_url)
relative_parsed.path) relative_parsed.path)
end end
end end
return _M.build(relative_parsed) result = _M.build(relative_parsed)
end end
return remove_dot_components(result)
end end
----------------------------------------------------------------------------- -----------------------------------------------------------------------------

44
test/urltest.lua
View File

@ -61,7 +61,7 @@ end
local check_absolute_url = function(base, relative, absolute) local check_absolute_url = function(base, relative, absolute)
local res = socket.url.absolute(base, relative) local res = socket.url.absolute(base, relative)
if res ~= absolute then if res ~= absolute then
io.write("absolute: In test for '", relative, "' expected '", io.write("absolute: In test for base='", base, "', rel='", relative, "' expected '",
absolute, "' but got '", res, "'\n") absolute, "' but got '", res, "'\n")
os.exit() os.exit()
end end
@ -627,25 +627,37 @@ check_absolute_url("http://a/b/c/d;p?q#f", "/g", "http://a/g")
check_absolute_url("http://a/b/c/d;p?q#f", "//g", "http://g") check_absolute_url("http://a/b/c/d;p?q#f", "//g", "http://g")
check_absolute_url("http://a/b/c/d;p?q#f", "?y", "http://a/b/c/d;p?y") check_absolute_url("http://a/b/c/d;p?q#f", "?y", "http://a/b/c/d;p?y")
check_absolute_url("http://a/b/c/d;p?q#f", "g?y", "http://a/b/c/g?y") check_absolute_url("http://a/b/c/d;p?q#f", "g?y", "http://a/b/c/g?y")
check_absolute_url("http://a/b/c/d;p?q#f", "g?y/./x", "http://a/b/c/g?y/./x") check_absolute_url("http://a/b/c/d;p?q#f", "g?y/./x", "http://a/b/c/g?y/x")
check_absolute_url("http://a/b/c/d;p?q#f", "#s", "http://a/b/c/d;p?q#s") check_absolute_url("http://a/b/c/d;p?q#f", "#s", "http://a/b/c/d;p?q#s")
check_absolute_url("http://a/b/c/d;p?q#f", "g#s", "http://a/b/c/g#s") check_absolute_url("http://a/b/c/d;p?q#f", "g#s", "http://a/b/c/g#s")
check_absolute_url("http://a/b/c/d;p?q#f", "g#s/./x", "http://a/b/c/g#s/./x") check_absolute_url("http://a/b/c/d;p?q#f", "g#s/./x", "http://a/b/c/g#s/x")
check_absolute_url("http://a/b/c/d;p?q#f", "g?y#s", "http://a/b/c/g?y#s") check_absolute_url("http://a/b/c/d;p?q#f", "g?y#s", "http://a/b/c/g?y#s")
check_absolute_url("http://a/b/c/d;p?q#f", ";x", "http://a/b/c/d;x") check_absolute_url("http://a/b/c/d;p?q#f", ";x", "http://a/b/c/d;x")
check_absolute_url("http://a/b/c/d;p?q#f", "g;x", "http://a/b/c/g;x") check_absolute_url("http://a/b/c/d;p?q#f", "g;x", "http://a/b/c/g;x")
check_absolute_url("http://a/b/c/d;p?q#f", "g;x?y#s", "http://a/b/c/g;x?y#s") check_absolute_url("http://a/b/c/d;p?q#f", "g;x?y#s", "http://a/b/c/g;x?y#s")
check_absolute_url("http://a/b/c/d;p?q#f", ".", "http://a/b/c/") check_absolute_url("http://a/b/c/d;p?q#f", ".", "http://a/b/c/")
check_absolute_url("http://a/b/c/d;p?q#f", "./", "http://a/b/c/") check_absolute_url("http://a/b/c/d;p?q#f", "./", "http://a/b/c/")
check_absolute_url("http://a/b/c/d;p?q#f", "./g", "http://a/b/c/g")
check_absolute_url("http://a/b/c/d;p?q#f", "./g/", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "././g", "http://a/b/c/g")
check_absolute_url("http://a/b/c/d;p?q#f", "././g/", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "g/.", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "g/./", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "g/./.", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "g/././", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "./.", "http://a/b/c/")
check_absolute_url("http://a/b/c/d;p?q#f", "././.", "http://a/b/c/")
check_absolute_url("http://a/b/c/d;p?q#f", "././g/./.", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "..", "http://a/b/") check_absolute_url("http://a/b/c/d;p?q#f", "..", "http://a/b/")
check_absolute_url("http://a/b/c/d;p?q#f", "../", "http://a/b/") check_absolute_url("http://a/b/c/d;p?q#f", "../", "http://a/b/")
check_absolute_url("http://a/b/c/d;p?q#f", "../g", "http://a/b/g") check_absolute_url("http://a/b/c/d;p?q#f", "../g", "http://a/b/g")
check_absolute_url("http://a/b/c/d;p?q#f", "../..", "http://a/") check_absolute_url("http://a/b/c/d;p?q#f", "../..", "http://a/")
check_absolute_url("http://a/b/c/d;p?q#f", "../../", "http://a/") check_absolute_url("http://a/b/c/d;p?q#f", "../../", "http://a/")
check_absolute_url("http://a/b/c/d;p?q#f", "../../g", "http://a/g") check_absolute_url("http://a/b/c/d;p?q#f", "../../g", "http://a/g")
check_absolute_url("http://a/b/c/d;p?q#f", "../../../g", "http://a/g")
check_absolute_url("http://a/b/c/d;p?q#f", "", "http://a/b/c/d;p?q#f") check_absolute_url("http://a/b/c/d;p?q#f", "", "http://a/b/c/d;p?q#f")
check_absolute_url("http://a/b/c/d;p?q#f", "/./g", "http://a/./g") check_absolute_url("http://a/b/c/d;p?q#f", "/./g", "http://a/g")
check_absolute_url("http://a/b/c/d;p?q#f", "/../g", "http://a/../g") check_absolute_url("http://a/b/c/d;p?q#f", "/../g", "http://a/g")
check_absolute_url("http://a/b/c/d;p?q#f", "g.", "http://a/b/c/g.") check_absolute_url("http://a/b/c/d;p?q#f", "g.", "http://a/b/c/g.")
check_absolute_url("http://a/b/c/d;p?q#f", ".g", "http://a/b/c/.g") check_absolute_url("http://a/b/c/d;p?q#f", ".g", "http://a/b/c/.g")
check_absolute_url("http://a/b/c/d;p?q#f", "g..", "http://a/b/c/g..") check_absolute_url("http://a/b/c/d;p?q#f", "g..", "http://a/b/c/g..")
@ -655,6 +667,17 @@ check_absolute_url("http://a/b/c/d;p?q#f", "./g/.", "http://a/b/c/g/")
check_absolute_url("http://a/b/c/d;p?q#f", "g/./h", "http://a/b/c/g/h") check_absolute_url("http://a/b/c/d;p?q#f", "g/./h", "http://a/b/c/g/h")
check_absolute_url("http://a/b/c/d;p?q#f", "g/../h", "http://a/b/c/h") check_absolute_url("http://a/b/c/d;p?q#f", "g/../h", "http://a/b/c/h")
check_absolute_url("http://a/b/c/d:p?q#f/", "../g/", "http://a/b/g/")
check_absolute_url("http://a/b/c/d:p?q#f/", "../g", "http://a/b/g")
check_absolute_url("http://a/b/c/d:p?q#f/", "../.g/", "http://a/b/.g/")
check_absolute_url("http://a/b/c/d:p?q#f/", "../.g", "http://a/b/.g")
check_absolute_url("http://a/b/c/d:p?q#f/", "../.g.h/", "http://a/b/.g.h/")
check_absolute_url("http://a/b/c/d:p?q#f/", "../.g.h", "http://a/b/.g.h")
check_absolute_url("http://a/b/c/d:p?q#f/", "g.h/", "http://a/b/c/g.h/")
check_absolute_url("http://a/b/c/d:p?q#f/", "../g.h/", "http://a/b/g.h/")
check_absolute_url("http://a/", "../g.h/", "http://a/g.h/")
-- extra tests -- extra tests
check_absolute_url("//a/b/c/d;p?q#f", "d/e/f", "//a/b/c/d/e/f") check_absolute_url("//a/b/c/d;p?q#f", "d/e/f", "//a/b/c/d/e/f")
check_absolute_url("/a/b/c/d;p?q#f", "d/e/f", "/a/b/c/d/e/f") check_absolute_url("/a/b/c/d;p?q#f", "d/e/f", "/a/b/c/d/e/f")
@ -662,6 +685,17 @@ check_absolute_url("a/b/c/d", "d/e/f", "a/b/c/d/e/f")
check_absolute_url("a/b/c/d/../", "d/e/f", "a/b/c/d/e/f") check_absolute_url("a/b/c/d/../", "d/e/f", "a/b/c/d/e/f")
check_absolute_url("http://velox.telemar.com.br", "/dashboard/index.html", check_absolute_url("http://velox.telemar.com.br", "/dashboard/index.html",
"http://velox.telemar.com.br/dashboard/index.html") "http://velox.telemar.com.br/dashboard/index.html")
check_absolute_url("http://example.com/", "../.badhost.com/", "http://example.com/.badhost.com/")
check_absolute_url("http://example.com/", "...badhost.com/", "http://example.com/...badhost.com/")
check_absolute_url("http://example.com/a/b/c/d/", "../q", "http://example.com/a/b/c/q")
check_absolute_url("http://example.com/a/b/c/d/", "../../q", "http://example.com/a/b/q")
check_absolute_url("http://example.com/a/b/c/d/", "../../../q", "http://example.com/a/q")
check_absolute_url("http://example.com", ".badhost.com", "http://example.com/.badhost.com")
check_absolute_url("http://example.com/a/b/c/d/", "..//../../../q", "http://example.com/a/q")
check_absolute_url("http://example.com/a/b/c/d/", "..//a/../../../../q", "http://example.com/a/q")
check_absolute_url("http://example.com/a/b/c/d/", "..//a/..//../../../q", "http://example.com/a/b/q")
check_absolute_url("http://example.com/a/b/c/d/", "..//a/..///../../../../q", "http://example.com/a/b/q")
check_absolute_url("http://example.com/a/b/c/d/", "../x/a/../y/z/../../../../q", "http://example.com/a/b/q")
print("testing path parsing and composition") print("testing path parsing and composition")
check_parse_path("/eu/tu/ele", { "eu", "tu", "ele"; is_absolute = 1 }) check_parse_path("/eu/tu/ele", { "eu", "tu", "ele"; is_absolute = 1 })