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optionally allow redirects on HTTPClient & OTA updates (#5009)

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* optionally allow redirects on http OTA updates

* Refactored HTTPClient::begin(url...) & setURL functions, now only beginInternal parses URL, sets ports
Added HTTPRedirect example.

* fix indentation for style check

* add space after while for style check

* don't use deprecated begin method in redirect example

* moved redirect handling code to HTTPClient.
only GET and HEAD requests are currently handled automatically
Redirects that fail to be automatically handled return the redirect code as before

* added support for POST/303 redirect
added device redirect tests

* add missing getLocation() implementation

* if the new location is only a path then only update the URI
This commit is contained in:
liebman
2019-03-12 17:51:17 -07:00
committed by david gauchard
parent 071eeb8b67
commit e46ccae9d5
6 changed files with 273 additions and 30 deletions
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12
libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
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@ -173,7 +173,9 @@ public:
void setAuthorization(const char * user, const char * password);
void setAuthorization(const char * auth);
void setTimeout(uint16_t timeout);
void setFollowRedirects(bool follow);
void setRedirectLimit(uint16_t limit); // max redirects to follow for a single request
bool setURL(String url); // handy for handling redirects
void useHTTP10(bool usehttp10 = true);
/// request handling
@ -200,12 +202,12 @@ public:
int getSize(void);
const String& getLocation(void); // Location header from redirect if 3XX
WiFiClient& getStream(void);
WiFiClient* getStreamPtr(void);
int writeToStream(Stream* stream);
const String& getString(void);
static String errorToString(int error);
protected:
@ -215,7 +217,7 @@ protected:
};
bool beginInternal(String url, const char* expectedProtocol);
void disconnect();
void disconnect(bool preserveClient = false);
void clear();
int returnError(int error);
bool connect(void);
@ -250,6 +252,10 @@ protected:
int _returnCode = 0;
int _size = -1;
bool _canReuse = false;
bool _followRedirects = false;
uint16_t _redirectCount = 0;
uint16_t _redirectLimit = 10;
String _location;
transferEncoding_t _transferEncoding = HTTPC_TE_IDENTITY;
std::unique_ptr<StreamString> _payload;
};