/*static*/ nsresult
nsHttpHeaderArray::ParseHeaderLine(const nsACString& line,
nsHttpAtom *hdr,
nsACString *headerName,
nsACString *val)
{
//
// BNF from section 4.2 of RFC 2616:
//
// message-header = field-name ":" [ field-value ]
// field-name = token
// field-value = *( field-content | LWS )
// field-content = <the OCTETs making up the field-value
// and consisting of either *TEXT or combinations
// of token, separators, and quoted-string>
//
// We skip over mal-formed headers in the hope that we'll still be able to
// do something useful with the response.
int32_t split = line.FindChar(':');
if (split == kNotFound) {
LOG(("malformed header [%s]: no colon\n",
PromiseFlatCString(line).get()));
return NS_ERROR_FAILURE;
}
const nsACString& sub = Substring(line, 0, split);
const nsACString& sub2 = Substring(
line, split + 1, line.Length() - split - 1);
// make sure we have a valid token for the field-name
if (!nsHttp::IsValidToken(sub)) {
LOG(("malformed header [%s]: field-name not a token\n",
PromiseFlatCString(line).get()));
return NS_ERROR_FAILURE;
}
nsHttpAtom atom = nsHttp::ResolveAtom(sub);
if (!atom) {
LOG(("failed to resolve atom [%s]\n", PromiseFlatCString(line).get()));
return NS_ERROR_FAILURE;
}
// skip over whitespace
char *p = net_FindCharNotInSet(
sub2.BeginReading(), sub2.EndReading(), HTTP_LWS);
// trim trailing whitespace - bug 86608
char *p2 = net_RFindCharNotInSet(p, sub2.EndReading(), HTTP_LWS);
// assign return values
if (hdr) *hdr = atom;
if (val) val->Assign(p, p2 - p + 1);
if (headerName) headerName->Assign(sub);
return NS_OK;
}
nsresult
nsHttpHeaderArray::ParseHeaderLine(const char *line,
nsHttpAtom *hdr,
char **val)
{
//
// BNF from section 4.2 of RFC 2616:
//
// message-header = field-name ":" [ field-value ]
// field-name = token
// field-value = *( field-content | LWS )
// field-content = <the OCTETs making up the field-value
// and consisting of either *TEXT or combinations
// of token, separators, and quoted-string>
//
// We skip over mal-formed headers in the hope that we'll still be able to
// do something useful with the response.
char *p = (char *) strchr(line, ':');
if (!p) {
LOG(("malformed header [%s]: no colon\n", line));
return NS_OK;
}
// make sure we have a valid token for the field-name
if (!nsHttp::IsValidToken(line, p)) {
LOG(("malformed header [%s]: field-name not a token\n", line));
return NS_OK;
}
*p = 0; // null terminate field-name
nsHttpAtom atom = nsHttp::ResolveAtom(line);
if (!atom) {
LOG(("failed to resolve atom [%s]\n", line));
return NS_OK;
}
// skip over whitespace
p = net_FindCharNotInSet(++p, HTTP_LWS);
// trim trailing whitespace - bug 86608
char *p2 = net_RFindCharNotInSet(p, HTTP_LWS);
*++p2 = 0; // null terminate header value; if all chars starting at |p|
// consisted of LWS, then p2 would have pointed at |p-1|, so
// the prefix increment is always valid.
// assign return values
if (hdr) *hdr = atom;
if (val) *val = p;
// assign response header
return SetHeaderFromNet(atom, nsDependentCString(p, p2 - p));
}
