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Optimize and improve credential stripping code.

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Since we already have the specific username and password we want to strip
from errors, use a specific search string rather than a generic regular
expression.  This is quite a bit more efficient than using regular
expressions and also has the benefit of being more accurate.

Also, rather than using the added overhead of fmt to convert the error to
a string, just call Error() directly on it to get the string.

Finally, instead of just stripping it, replace it with the literal
string "<username>:<password>" to avoid any possible confusion in the
error messages where it might otherwise appear the url was being
constructed incorrectly.

ok jcv@
This commit is contained in:
Dave Collins 2013-06-14 11:19:50 -05:00
parent 2a475d7299
commit 10542e0573
2 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
jsonfxns.go
View File

@ -11,7 +11,7 @@ import (
"io"
"io/ioutil"
"net/http"
"regexp"
"strings"
)
// MarshallAndSend takes the reply structure, marshalls it to json, and
@ -33,13 +33,14 @@ func MarshallAndSend(rawReply Reply, w io.Writer) (string, error) {
// than net/rpc/jsonrpc since that one doesn't support http connections and is
// therefore useless.
func jsonRpcSend(user string, password string, server string, message []byte) (*http.Response, error) {
resp, err := http.Post("http://"+user+":"+password+"@"+server,
credentials := user + ":" + password
resp, err := http.Post("http://"+credentials+"@"+server,
"application/json", bytes.NewBuffer(message))
if err != nil {
// We do not want to log the username/password in the errors.
re := regexp.MustCompile(`http://\w+:\w+`)
errString := re.ReplaceAllString(fmt.Sprintf("%v", err), "")
err = fmt.Errorf(errString)
replaceStr := "<username>:<password>"
str := strings.Replace(err.Error(), credentials, replaceStr, -1)
err = fmt.Errorf("%v", str)
}
return resp, err
}

4
test_coverage.txt
View File

@ -1,11 +1,11 @@
github.com/conformal/btcjson/jsonapi.go CreateMessage 100.00% (310/310)
github.com/conformal/btcjson/jsonfxns.go jsonRpcSend 100.00% (7/7)
github.com/conformal/btcjson/jsonfxns.go MarshallAndSend 100.00% (7/7)
github.com/conformal/btcjson/jsonfxns.go GetRaw 100.00% (6/6)
github.com/conformal/btcjson/jsonfxns.go jsonRpcSend 100.00% (6/6)
github.com/conformal/btcjson/jsonapi.go jsonWithArgs 100.00% (5/5)
github.com/conformal/btcjson/jsonapi.go IsValidIdType 100.00% (3/3)
github.com/conformal/btcjson/jsonapi.go RpcCommand 66.67% (18/27)
github.com/conformal/btcjson/jsonapi.go readResultCmd 40.00% (20/50)
github.com/conformal/btcjson --------------- 90.58% (375/414)
github.com/conformal/btcjson --------------- 90.60% (376/415)