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package api
import (
"log"
"net/http"
"github.com/ponzu-cms/ponzu/system/item"
"github.com/tidwall/gjson"
"golang.org/x/net/http2"
)
func push(res http.ResponseWriter, req *http.Request, pt func() interface{}, data []byte) {
// Push(target string, opts *PushOptions) error
if pusher, ok := res.(http.Pusher); ok {
if p, ok := pt().(item.Pushable); ok {
// get fields to pull values from data
fields := p.Push()
// parse values from data to push
values := gjson.GetManyBytes(data, fields...)
// push all values from Pushable items' fields
for i := range values {
val := values[i]
val.ForEach(func(k, v gjson.Result) bool {
if v.String() == "null" {
return true
}
// check that the push is not to its parent URL
if v.String() == (req.URL.Path + "?" + req.URL.RawQuery) {
return true
}
err := pusher.Push(v.String(), nil)
// check for error, "http2: recursive push not allowed"
// and return, suppressing a log message
if err != nil && err.Error() == http2.ErrRecursivePush.Error() {
return true
}
if err != nil {
log.Println("Error during Push of value:", v.String(), err)
}
return true
})
}
}
}
}
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