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ofxgo/client.go

121 lines
3.4 KiB
Go

package ofxgo
import (
"errors"
"io"
"net/http"
"strings"
)
type Client struct {
// Request fields to overwrite with the client's values. If nonempty,
// defaults are used
SpecVersion string // VERSION in header
AppId string // SONRQ>APPID
AppVer string // SONRQ>APPVER
// Don't insert newlines or indentation when marshalling to SGML/XML
NoIndent bool
}
var defaultClient Client
func (c *Client) OfxVersion() string {
if len(c.SpecVersion) > 0 {
return c.SpecVersion
} else {
return "203"
}
}
func (c *Client) Id() String {
if len(c.AppId) > 0 {
return String(c.AppId)
} else {
return String("OFXGO")
}
}
func (c *Client) Version() String {
if len(c.AppVer) > 0 {
return String(c.AppVer)
} else {
return String("0001")
}
}
// Returns true if the marshaled XML should be indented (and contain newlines,
// since the two are linked in the current implementation)
func (c *Client) IndentRequests() bool {
return !c.NoIndent
}
// RawRequest is little more than a thin wrapper around http.Post
//
// In most cases, you should probably be using Request() instead, but
// RawRequest can be useful if you need to read the raw unparsed http response
// yourself (perhaps for downloading an OFX file for use by an external
// program, or debugging server behavior), or have a handcrafted request you'd
// like to try.
//
// Caveats: RawRequest does *not* take client settings into account as
// Request() does, so your particular server may or may not like whatever we
// read from 'r'. The caller is responsible for closing the http Response.Body
// (see the http module's documentation for more information)
func RawRequest(URL string, r io.Reader) (*http.Response, error) {
if !strings.HasPrefix(URL, "https://") {
return nil, errors.New("Refusing to send OFX request with possible plain-text password over non-https protocol")
}
response, err := http.Post(URL, "application/x-ofx", r)
if err != nil {
return nil, err
}
if response.StatusCode != 200 {
return nil, errors.New("OFXQuery request status: " + response.Status)
}
return response, nil
}
// RequestNoParse marshals a Request object into XML, makes an HTTP request,
// and returns the raw HTTP response. Unlike RawRequest(), it takes client
// settings into account. Unlike Request(), it doesn't parse the response into
// a Request object.
//
// Caveat: The caller is responsible for closing the http Response.Body (see
// the http module's documentation for more information)
func (c *Client) RequestNoParse(r *Request) (*http.Response, error) {
r.SetClientFields(c)
b, err := r.Marshal()
if err != nil {
return nil, err
}
return RawRequest(r.URL, b)
}
// Request marshals a Request object into XML, makes an HTTP request against
// it's URL, and then unmarshals the response into a Response object.
//
// Before being marshaled, some of the the Request object's values are
// overwritten, namely those dictated by the Client's configuration (Version,
// AppId, AppVer fields), and the client's curren time (DtClient). These are
// updated in place in the supplied Request object so they may later be
// inspected by the caller.
func (c *Client) Request(r *Request) (*Response, error) {
response, err := c.RequestNoParse(r)
if err != nil {
return nil, err
}
defer response.Body.Close()
ofxresp, err := ParseResponse(response.Body)
if err != nil {
return nil, err
}
return ofxresp, nil
}