Files
backend/api/upload.go

95 lines
2.6 KiB
Go

package api
import (
"TheAdversary/config"
"TheAdversary/database"
"TheAdversary/schema"
"encoding/base64"
"encoding/json"
"fmt"
"github.com/gomarkdown/markdown"
"go.uber.org/zap"
"net/http"
"path"
"strings"
"time"
)
type uploadPayload struct {
Title string `json:"title"`
Summary string `json:"summary"`
Authors []int `json:"authors"`
Image string `json:"image"`
Tags []string `json:"tags"`
Link string `json:"link"`
Content string `json:"content"`
}
func Upload(w http.ResponseWriter, r *http.Request) {
authorId, ok := authorizedSession(r)
if !ok {
w.WriteHeader(http.StatusUnauthorized)
return
}
var payload uploadPayload
if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
InvalidJson.Send(w)
return
}
rawMarkdown, err := base64.StdEncoding.DecodeString(payload.Content)
if err != nil {
zap.S().Warnf("Cannot decode base64")
ApiError{Message: "invalid base64 content", Code: http.StatusUnprocessableEntity}.Send(w)
return
}
var notFound []string
database.GetDB().Select("* FROM ? EXCEPT ?", payload.Authors, database.GetDB().Table("author").Select("id")).Find(&notFound)
if len(notFound) > 0 {
ApiError{fmt.Sprintf("no authors with the id(s) %s were found", strings.Join(notFound, ", ")), http.StatusUnprocessableEntity}.Send(w)
return
}
a := article{
Title: payload.Title,
Summary: payload.Summary,
Image: payload.Image,
Created: time.Now().Unix(),
Modified: time.Unix(0, 0).Unix(),
Link: "/" + path.Join(config.Prefix, "article", payload.Link),
Markdown: string(rawMarkdown),
Html: string(markdown.ToHTML(rawMarkdown, nil, nil)),
}
database.GetDB().Table("article").Create(&a)
var authors []map[string]interface{}
for _, author := range append([]int{authorId}, payload.Authors...) {
authors = append(authors, map[string]interface{}{
"article_id": a.ID,
"author_id": author,
})
}
database.GetDB().Table("article_author").Create(&authors)
var tags []map[string]interface{}
for _, tag := range payload.Tags {
authors = append(authors, map[string]interface{}{
"article_id": a.ID,
"tag": tag,
})
}
database.GetDB().Table("article_tag").Create(&tags)
var articleSummary schema.ArticleSummary
database.GetDB().Table("article").Find(&articleSummary, &a.ID)
database.GetDB().Table("author").Where("id IN (?)", database.GetDB().Table("article_author").Select("author_id").Where("article_id = ?", a.ID)).Find(&articleSummary.Authors)
if payload.Tags != nil {
articleSummary.Tags = payload.Tags
} else {
articleSummary.Tags = []string{}
}
w.WriteHeader(http.StatusCreated)
json.NewEncoder(w).Encode(articleSummary)
}