forked from hofstadter-io/hof
/
cmd_http.go
267 lines (216 loc) · 5.84 KB
/
cmd_http.go
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package runtime
import (
"fmt"
"runtime/debug"
"strconv"
"strings"
"time"
"github.com/parnurzeal/gorequest"
)
const HTTP2_GOAWAY_CHECK = "http2: server sent GOAWAY and closed the connection"
// http makes an http call.
func (ts *Script) CmdHttp(neg int, args []string) {
if len(args) < 1 {
ts.Fatalf("usage: http function [args...]")
}
var err error
ts.stdout, ts.stderr, ts.status, err = ts.http(args)
if ts.stdout != "" {
fmt.Fprintf(&ts.log, "[stdout]\n%s", ts.stdout)
}
if ts.stderr != "" {
fmt.Fprintf(&ts.log, "[stderr]\n%s", ts.stderr)
}
if err == nil && neg > 0 {
ts.Fatalf("unexpected http success")
}
if err != nil {
fmt.Fprintf(&ts.log, "[%v]\n", err)
if ts.ctxt.Err() != nil {
ts.Fatalf("test timed out while making http request")
} else if neg > 0 {
ts.Fatalf("unexpected http failure")
}
}
}
// call runs the given function and then returns collected standard output and standard error.
func (ts *Script) http(args []string) (string, string, int, error) {
// TODO, turn this into a log line
if args[0] == "client" {
err := ts.manageHttpClient(args[1:])
ts.Check(err)
return "", "", 0, nil
}
req, err := ts.reqFromArgs(args)
ts.Check(err)
defer func() {
if r := recover(); r != nil {
bs := debug.Stack()
ts.Fatalf("Recovered in HTTP: %v\n%s\n", r, string(bs))
}
}()
resp, body, errs := req.End()
if len(errs) != 0 && resp == nil {
ts.Fatalf("Fatal error in HTTP: %v", errs)
}
if len(errs) != 0 && !strings.Contains(errs[0].Error(), HTTP2_GOAWAY_CHECK) {
return "", body, resp.StatusCode, fmt.Errorf("Internal Weirdr Error:\b%v\n%s\n", errs, body)
}
if len(errs) != 0 {
return "", body, resp.StatusCode, fmt.Errorf("Internal Error:\n%v\n%s\n", errs, body)
}
body += "\n"
return body, "", resp.StatusCode, nil
}
func (ts *Script) manageHttpClient(args []string) error {
L := len(args)
if L < 1 {
ts.Fatalf("usage: http client [new,del] <name> http-args...")
}
key, name := args[0], "default"
if len(args) == 1 {
args = args[1:]
} else {
name = args[1]
args = args[2:]
}
if ts.httpClients == nil {
ts.httpClients = make(map[string]*gorequest.SuperAgent)
}
switch key {
case "new":
req, err := ts.newReqFromArgs(args)
ts.Check(err)
ts.httpClients[name] = req
case "mod":
req, ok := ts.httpClients[name]
if !ok {
ts.Fatalf("unknown http client %q", name)
}
req, err := ts.applyArgsToReq(req, args)
ts.Check(err)
ts.httpClients[name] = req
case "del":
_, ok := ts.httpClients[name]
if !ok {
ts.Fatalf("unknown http client %q", name)
}
delete(ts.httpClients, name)
default:
ts.Fatalf("usage: http client <op> args...")
}
return nil
}
func (ts *Script) reqFromArgs(args []string) (*gorequest.SuperAgent, error) {
// first arg is a known client
if req, ok := ts.httpClients[args[0]]; ok {
R := req.Clone()
return ts.applyArgsToReq(R, args[1:])
}
return ts.newReqFromArgs(args)
}
func (ts *Script) newReqFromArgs(args []string) (*gorequest.SuperAgent, error) {
// otherwise create a one-time req obj
req := gorequest.New()
req = ts.applyDefaultsToReq(req)
return ts.applyArgsToReq(req, args)
}
func (ts *Script) applyDefaultsToReq(req *gorequest.SuperAgent) *gorequest.SuperAgent {
req.Method = "GET"
return req
}
func (ts *Script) applyArgsToReq(req *gorequest.SuperAgent, args []string) (*gorequest.SuperAgent, error) {
var err error
for _, arg := range args {
req, err = ts.applyArgToReq(req, arg)
if err != nil {
return nil, err
}
}
return req, nil
}
func (ts *Script) applyArgToReq(req *gorequest.SuperAgent, arg string) (*gorequest.SuperAgent, error) {
// fmt.Printf(" APPLY: %q\n", flds)
flds := strings.SplitN(arg, "=", 2)
key := flds[0]
val := ""
if len(flds) == 2 {
val = flds[1]
}
K := strings.ToUpper(key)
switch K {
case "U", "URL":
req.Url = val
case "T", "TYPE":
req = req.Type(val)
case "Q", "QUERY":
if strings.HasPrefix(val, "@") {
val = ts.ReadFile(val[1:])
}
req = req.Query(val)
case "R", "RETRY":
flds = strings.Fields(val)
if len(flds) < 3 {
ts.Fatalf("http retry usage: RETRY:'<count> <timer> [codes...]'")
}
cnt, tmr, codes := flds[0], flds[1], flds[2:]
c, err := strconv.Atoi(cnt)
ts.Check(err)
t, err := time.ParseDuration(tmr)
ts.Check(err)
cs := []int{}
for _, code := range codes {
i, err := strconv.Atoi(code)
ts.Check(err)
cs = append(cs, i)
}
req = req.Retry(c, t, cs...)
case "D", "DATA", "S", "SEND":
if strings.HasPrefix(val, "@") {
val = ts.ReadFile(val[1:])
}
req = req.Send(val)
case "F", "FILE":
flds := strings.Split(val, ":")
filename, fieldname := strings.TrimSpace(flds[0]), ""
if len(flds) > 1 {
fieldname = strings.TrimSpace(flds[1])
}
content := ts.ReadFile(filename)
req = req.SendFile([]byte(content), filename, fieldname)
case "A", "AUTH":
flds := strings.Split(val, ":")
k, v := strings.TrimSpace(flds[0]), strings.TrimSpace(flds[1])
req = req.SetBasicAuth(k, v)
case "H", "HEADER":
flds := strings.Split(val, ":")
k, v := strings.TrimSpace(flds[0]), strings.TrimSpace(flds[1])
req = req.Set(k, v)
case "M", "METHOD":
req.Method = K
// Specially recognized key only args
case "GET", "POST", "HEAD", "PUT", "DELETE", "PATCH", "OPTIONS":
req.Method = K
// Graphql Helpers
case "G", "GQL", "GRAPHQL":
if strings.HasPrefix(val, "@") {
val = ts.ReadFile(val[1:])
}
req = req.Send(fmt.Sprintf(`{ "query": %q }`, val))
case "V", "VARS", "VARIABLES":
if strings.HasPrefix(val, "@") {
val = ts.ReadFile(val[1:])
}
req = req.Send(fmt.Sprintf(`{ "variables": %s }`, val))
case "O", "OP", "OPNAME", "OPERATION":
req = req.Send(fmt.Sprintf(`{ "operationName": %q }`, val))
default:
// check some special prefixes
if strings.HasPrefix(key, "http") {
req.Url = key
return req, nil
}
return nil, fmt.Errorf("unknown http arg/key: %q / %q", arg, key)
}
return req, nil
}