The server is responding with a less than helpful message.
Unable to get a request token: Request for https://etwssandbox.etrade.com/oauth/sandbox/request_token?oauth_callback=oob&oauth_consumer_key=aaf0812a4bcc6e4c21783af47cf88237&oauth_nonce=3495463522&oauth_signature=ykqRaZc18GwIoqHtYqtxzsMq4xs%3D&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1371092839&oauth_version=1.0 failed,HTTP/1.1 400 Bad Request
Connection: close
Content-Length: 62
Client-Date: Thu, 13 Jun 2013 03:07:19 GMT
Client-Peer: 12.153.224.230:443
Client-Response-Num: 1
Client-SSL-Cert-Issuer: /C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=Terms of use at https://www.verisign.com/rpa (c)10/CN=VeriSign Class 3 Secure Server CA - G3
Client-SSL-Cert-Subject: /C=US/ST=New York/L=New York/O=ETRADE FINANCIAL CORPORATION/OU=Global Information Security/CN=etwssandbox.etrade.com
Client-SSL-Cipher: RC4-MD5
<html><body><b>Http/1.1 400 Bad Request</b></body> </html>
OK I will try with headers. All required parameters are present.
$ wget -d -O- --header='Authorization: OAuth realm="",oauth_callback="oob",oauth_consumer_key="aaf0812a4bcc6e4c21783af47cf88237",oauth_nonce="3495463522",oauth_signature="ykqRaZc18GwIoqHtYqtxzsMq4xs%3D",oauth_signature_method="HMAC-SHA1",oauth_timestamp="1371092839",oauth_version="1.0"' 'https://etwssandbox.etrade.com/oauth/sandbox/request_token'
Setting --output-document (outputdocument) to -
Setting --header (header) to Authorization: OAuth realm="",oauth_callback="oob",oauth_consumer_key="aaf0812a4bcc6e4c21783af47cf88237",oauth_nonce="3495463522",oauth_signature="ykqRaZc18GwIoqHtYqtxzsMq4xs%3D",oauth_signature_method="HMAC-SHA1",oauth_timestamp="1371092839"
DEBUG output created by Wget 1.13.4 on cygwin.
URI encoding = `UTF-8'
--2013-06-12 23:08:33-- https://etwssandbox.etrade.com/oauth/sandbox/request_token
Resolving etwssandbox.etrade.com (etwssandbox.etrade.com)... 12.153.224.230, 198.93.34.230
Caching etwssandbox.etrade.com => 12.153.224.230 198.93.34.230
Connecting to etwssandbox.etrade.com (etwssandbox.etrade.com)|12.153.224.230|:443... connected.
Created socket 3.
Releasing 0x80733128 (new refcount 1).
---request begin---
GET /oauth/sandbox/request_token HTTP/1.1
User-Agent: Wget/1.13.4 (cygwin)
Accept: */*
Host: etwssandbox.etrade.com
Connection: Keep-Alive
Authorization: OAuth realm="",oauth_callback="oob",oauth_consumer_key="aaf0812a4bcc6e4c21783af47cf88237",oauth_nonce="3495463522",oauth_signature="ykqRaZc18GwIoqHtYqtxzsMq4xs%3D",oauth_signature_method="HMAC-SHA1",oauth_timestamp="1371092839"
---request end---
HTTP request sent, awaiting response...
---response begin---
HTTP/1.1 400 Bad Request
Content-Length:62
Connection: close
---response end---
400 Bad Request
2013-06-12 23:08:34 ERROR 400: Bad Request.
That still did not work. Let me verify the signature. Notice my key and secret are correct.
First URL encode all the parameters to form a base string for signing.
$ perl -MURI::Escape -e "print uri_escape('oauth_callback=oob&oauth_consumer_key=aaf0812a4bcc6e4c21783af47cf88237&oauth_nonce=3495463522&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1371092839&oauth_version=1.0')"
oauth_callback%3Doob%26oauth_consumer_key%3Daaf0812a4bcc6e4c21783af47cf88237%26oauth_nonce%3D3495463522%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1371092839%26oauth_version%3D1.0
Now hash with HMAC-SHA1, encode with Base64 (no newline at end), and URL encode the resulting signature.
There is an ampersand at the end of the consumer secret because we don't have a token secret yet (it is empty).
$ perl -MDigest::HMAC_SHA1=hmac_sha1 -MMIME::Base64 -MURI::Escape -e "print uri_escape(encode_base64(hmac_sha1('GET&https%3A%2F%2Fetwssandbox.etrade.com%2Foauth%2Fsandbox%2Frequest_token&oauth_callback%3Doob%26oauth_consumer_key%3Daaf0812a4bcc6e4c21783af47cf88237%26oauth_nonce%3D3495463522%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1371092839%26oauth_version%3D1.0', 'xxxxxxxxxxxxxxxxxxxx&'), ''))"
ykqRaZc18GwIoqHtYqtxzsMq4xs%3D
This signature matches the above.
The specs are here: http://oauth.net/core/1.0a/#signing_process
ETrade specs are here: https://us.etrade.com/ctnt/dev-portal/getDetail?contentUri=V0_Documentation-AuthorizationAPI-GetRequestToken
