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esp32_https_server/src/HTTPRequest.cpp at master · gavinlwz/esp32_https_server · GitHub
gavinlwz
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HTTPRequest.cpp
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HTTPRequest.cpp
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#
include
"
HTTPRequest.hpp
"
namespace
httpsserver
{
HTTPRequest::HTTPRequest
(ConnectionContext * con, HTTPHeaders * headers, ResourceParameters * params, std::string requestString, std::string method, std::string tag):
_con
(con),
_headers
(headers),
_params
(params),
_requestString
(requestString),
_method
(method),
_tag
(tag) {
HTTPHeader * contentLength = headers->
get
(
"
Content-Length
"
);
if
(contentLength ==
NULL
) {
_remainingContent =
0
;
_contentLengthSet =
false
;
}
else
{
_remainingContent =
parseInt
(contentLength->
_value
);
_contentLengthSet =
true
;
}
}
HTTPRequest::~HTTPRequest
() {
}
ResourceParameters *
HTTPRequest::getParams
() {
return
_params;
}
std::string
HTTPRequest::getHeader
(std::string name) {
HTTPHeader * h = _headers->
get
(name);
if
(h !=
NULL
) {
return
h->
_value
;
}
else
{
return
std::string
();
}
}
void
HTTPRequest::setHeader
(std::string name, std::string value) {
_headers->
set
(
new
HTTPHeader
(name, value));
}
size_t
HTTPRequest::readBytes
(byte * buffer,
size_t
length) {
//
Limit reading to content length
if
(_contentLengthSet && length > _remainingContent) {
length = _remainingContent;
}
size_t
bytesRead = _con->
readBuffer
(buffer, length);
if
(_contentLengthSet) {
_remainingContent -= bytesRead;
}
return
bytesRead;
}
size_t
HTTPRequest::readChars
(
char
* buffer,
size_t
length) {
return
readBytes
((byte*)buffer, length);
}
size_t
HTTPRequest::getContentLength
() {
return
_remainingContent;
}
std::string
HTTPRequest::getRequestString
() {
return
_requestString;
}
std::string
HTTPRequest::getMethod
() {
return
_method;
}
std::string
HTTPRequest::getTag
() {
return
_tag;
}
bool
HTTPRequest::requestComplete
() {
if
(_contentLengthSet) {
//
If we have a content size, rely on it.
return
(_remainingContent ==
0
);
}
else
{
//
If there is no more input...
return
(_con->
pendingBufferSize
() ==
0
);
}
}
/*
*
* This function will drop whatever is remaining of the request body
*/
void
HTTPRequest::discardRequestBody
() {
byte buf[
16
];
while
(!
requestComplete
()) {
readBytes
(buf,
16
);
}
}
std::string
HTTPRequest::getBasicAuthUser
() {
std::string token =
decodeBasicAuthToken
();
size_t
splitpoint = token.
find
(
"
:
"
);
if
(splitpoint != std::string::npos && splitpoint >
0
) {
return
token.
substr
(
0
, splitpoint);
}
else
{
return
std::string
();
}
}
std::string
HTTPRequest::getBasicAuthPassword
() {
std::string token =
decodeBasicAuthToken
();
size_t
splitpoint = token.
find
(
"
:
"
);
if
(splitpoint != std::string::npos && splitpoint >
0
) {
return
token.
substr
(splitpoint+
1
);
}
else
{
return
std::string
();
}
}
std::string
HTTPRequest::decodeBasicAuthToken
() {
std::string basicAuthString =
getHeader
(
"
Authorization
"
);
//
Get the length of the token
size_t
sourceLength = basicAuthString.
length
();
//
Only handle basic auth tokens
if
(basicAuthString.
substr
(
0
,
6
) !=
"
Basic
"
) {
return
std::string
();
}
//
If the token is too long, skip
if
(sourceLength >
100
) {
return
std::string
();
}
else
{
//
Try to decode. As we are using mbedtls anyway, we can use that function
unsigned
char
* bufOut =
new
unsigned
char
[basicAuthString.
length
()];
size_t
outputLength =
0
;
int
res =
mbedtls_base64_decode
(
bufOut,
sourceLength,
&outputLength,
((
const
unsigned
char
*)basicAuthString.
substr
(
6
).
c_str
()),
//
Strip "Basic "
sourceLength -
6
//
Strip "Basic "
);
//
Failure of decoding
if
(res !=
0
) {
delete[]
bufOut;
return
std::string
();
}
std::string tokenRes =
std::string
((
char
*)bufOut, outputLength);
delete[]
bufOut;
return
tokenRes;
}
}
bool
HTTPRequest::isSecure
() {
return
_con->
isSecure
();
}
}
/*
namespace httpsserver
*/
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