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cgi module: don't depent on the terminating zero

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This commit is contained in:
Andreas Rumpf
2018-04-29 01:18:26 +02:00
parent 7e0540ed80
commit 39b81c836c
1 changed files with 10 additions and 10 deletions
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20
lib/pure/cgi.nim
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@@ -97,11 +97,10 @@ iterator decodeData*(data: string): tuple[key, value: TaintedString] =
var name = ""
var value = ""
# decode everything in one pass:
while data[i] != '\0':
while i < data.len:
setLen(name, 0) # reuse memory
while true:
while i < data.len:
case data[i]
of '\0': break
of '%':
var x = 0
handleHexChar(data[i+1], x)
@@ -112,15 +111,16 @@ iterator decodeData*(data: string): tuple[key, value: TaintedString] =
of '=', '&': break
else: add(name, data[i])
inc(i)
if data[i] != '=': cgiError("'=' expected")
if i >= data.len or data[i] != '=': cgiError("'=' expected")
inc(i) # skip '='
setLen(value, 0) # reuse memory
while true:
while i < data.len:
case data[i]
of '%':
var x = 0
handleHexChar(data[i+1], x)
handleHexChar(data[i+2], x)
if i+2 < data.len:
handleHexChar(data[i+1], x)
handleHexChar(data[i+2], x)
inc(i, 2)
add(value, chr(x))
of '+': add(value, ' ')
@@ -128,9 +128,9 @@ iterator decodeData*(data: string): tuple[key, value: TaintedString] =
else: add(value, data[i])
inc(i)
yield (name.TaintedString, value.TaintedString)
if data[i] == '&': inc(i)
elif data[i] == '\0': break
else: cgiError("'&' expected")
if i < data.len:
if data[i] == '&': inc(i)
else: cgiError("'&' expected")
iterator decodeData*(allowedMethods: set[RequestMethod] =
{methodNone, methodPost, methodGet}): tuple[key, value: TaintedString] =