hugo-micropub/micropub.go

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package main
import (
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"encoding/json"
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"net/http"
"time"
)
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type MicropubConfig struct {
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SyndicateTo []SyndicationTarget `json:"syndicate-to,omitempty"`
MediaEndpoint string `json:"media-endpoint,omitempty"`
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}
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func HandleMicroPub(w http.ResponseWriter, r *http.Request) {
// a handler for GET requests, used for troubleshooting
if r.Method == "GET" {
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if q := r.URL.Query().Get("q"); q == "config" || q == "syndicate-to" {
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w.Header().Add("Content-type", "application/json")
w.WriteHeader(http.StatusOK)
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_ = json.NewEncoder(w).Encode(&MicropubConfig{
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SyndicateTo: SyndicationTargets,
MediaEndpoint: MediaEndpointUrl,
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})
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return
} else {
w.Header().Add("Content-type", "application/json")
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte("{}"))
return
}
}
// check if the request is a POST
if r.Method != "POST" {
w.WriteHeader(http.StatusMethodNotAllowed)
_, _ = w.Write([]byte("The HTTP method is not allowed, make a POST request"))
return
}
// check content type
contentType, err := GetContentType(r.Header.Get("content-type"))
if err != nil {
w.WriteHeader(http.StatusBadRequest)
_, _ = w.Write([]byte(err.Error()))
return
}
// Create entry
entry, err := CreateEntry(contentType, r)
if err != nil || entry == nil {
w.WriteHeader(http.StatusBadRequest)
if err != nil {
_, _ = w.Write([]byte(err.Error()))
} else {
_, _ = w.Write([]byte("There was an error creating the entry"))
}
return
}
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if authHeader := r.Header.Get("authorization"); len(entry.token) == 0 && len(authHeader) > 0 {
entry.token = authHeader
}
if CheckAuthorization(entry.token) {
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location, err := WriteEntry(entry)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
_, _ = w.Write([]byte("There was an error committing the entry to the repository"))
return
} else {
w.Header().Add("Location", location)
w.WriteHeader(http.StatusAccepted)
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// Purge CDN after 30 seconds, send webmentions, post to social media
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go func() {
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time.Sleep(30 * time.Second)
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if SelectedCdn != nil {
SelectedCdn.Purge(location)
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time.Sleep(10 * time.Second)
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}
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// Send webmentions
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go SendWebmentions(location)
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}()
return
}
} else {
w.WriteHeader(http.StatusForbidden)
_, _ = w.Write([]byte("Forbidden, there was a problem with the provided access token"))
return
}
}