meme: add configurable memes

This commit is contained in:
Chris Sexton 2020-10-21 10:02:59 -04:00 committed by Chris Sexton
parent bd2e28f72a
commit 250ce836bf
2 changed files with 204 additions and 140 deletions

View File

@ -4,7 +4,6 @@ import (
"bytes"
"encoding/json"
"fmt"
"html/template"
"image"
"image/color"
"image/draw"
@ -13,7 +12,6 @@ import (
"net/url"
"path"
"regexp"
"sort"
"strings"
"time"
@ -40,6 +38,12 @@ type cachedImage struct {
repr []byte
}
type memeText struct {
XPerc float64 `json:"x"`
YPerc float64 `json:"y"`
Text string `json:"t"`
}
var horizon = 24 * 7
type cachedImages map[string]*cachedImage
@ -92,6 +96,8 @@ func (p *MemePlugin) help(c bot.Connector, kind bot.Kind, message msg.Message, a
msg += fmt.Sprintf("\nor a format from the list of %d pre-made memes listed on the website", len(formats))
msg += fmt.Sprintf("\nHead over to %s/meme to view and add new meme formats", webRoot)
msg += "\nYou can use `_` as a placeholder for empty text and a newline (|| on Discord) to separate top vs bottom."
msg += "\nOR you can configure the text yourself with JSON. Send a code quoted message like:"
msg += "```/meme doge `[{\"x\": 0.2, \"y\": 0.1, \"t\": \"such image\"},{\"x\": 0.7, \"y\": 0.5, \"t\": \"much meme\"},{\"x\": 0.4, \"y\": 0.8, \"t\": \"wow\"}]` ```"
p.bot.Send(c, bot.Message, message.Channel, msg)
return true
}
@ -120,101 +126,6 @@ type ByName struct{ webResps }
func (s ByName) Less(i, j int) bool { return s.webResps[i].Name < s.webResps[j].Name }
func (p *MemePlugin) all(w http.ResponseWriter, r *http.Request) {
memes := p.c.GetMap("meme.memes", defaultFormats)
values := webResps{}
for n, u := range memes {
realURL, err := url.Parse(u)
if err != nil || realURL.Scheme == "" {
realURL, err = url.Parse("https://imgflip.com/s/meme/" + u)
if err != nil {
values = append(values, webResp{n, "404.png"})
log.Error().Err(err).Msgf("invalid URL")
continue
}
}
values = append(values, webResp{n, realURL.String()})
}
sort.Sort(ByName{values})
out, err := json.Marshal(values)
if err != nil {
w.WriteHeader(500)
log.Error().Err(err).Msgf("could not serve all memes route")
return
}
w.Write(out)
}
func mkCheckError(w http.ResponseWriter) func(error) bool {
return func(err error) bool {
if err != nil {
log.Error().Err(err).Msgf("meme failed")
w.WriteHeader(500)
e, _ := json.Marshal(err)
w.Write(e)
return true
}
return false
}
}
func (p *MemePlugin) rmMeme(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodDelete {
w.WriteHeader(405)
fmt.Fprintf(w, "Incorrect HTTP method")
return
}
checkError := mkCheckError(w)
decoder := json.NewDecoder(r.Body)
values := webResp{}
err := decoder.Decode(&values)
if checkError(err) {
return
}
formats := p.c.GetMap("meme.memes", defaultFormats)
delete(formats, values.Name)
err = p.c.SetMap("meme.memes", formats)
checkError(err)
}
func (p *MemePlugin) addMeme(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
w.WriteHeader(405)
fmt.Fprintf(w, "Incorrect HTTP method")
return
}
checkError := mkCheckError(w)
decoder := json.NewDecoder(r.Body)
values := webResp{}
err := decoder.Decode(&values)
if checkError(err) {
return
}
formats := p.c.GetMap("meme.memes", defaultFormats)
formats[values.Name] = values.URL
err = p.c.SetMap("meme.memes", formats)
checkError(err)
}
func (p *MemePlugin) webRoot(w http.ResponseWriter, r *http.Request) {
var tpl = template.Must(template.New("factoidIndex").Parse(string(memeIndex)))
tpl.Execute(w, struct{ Nav []bot.EndPoint }{p.bot.GetWebNavigation()})
}
func (p *MemePlugin) img(w http.ResponseWriter, r *http.Request) {
_, file := path.Split(r.URL.Path)
id := file
if img, ok := p.images[id]; ok {
w.Write(img.repr)
} else {
w.WriteHeader(404)
w.Write([]byte("not found"))
}
p.images.cleanup()
}
func (p *MemePlugin) bully(c bot.Connector, format, id string) image.Image {
bullyIcon := ""
@ -262,25 +173,45 @@ func (p *MemePlugin) sendMeme(c bot.Connector, channel, channelName, msgID strin
log.Debug().Strs("parts", parts).Msgf("Meme:\n%+v", text)
go func() {
top, bottom := "", message
if strings.Contains(message, "||") {
parts = strings.Split(message, "||")
} else {
parts = strings.Split(message, "\n")
}
if len(parts) > 1 {
top, bottom = parts[0], parts[1]
}
var config []memeText
if top == "_" {
message = bottom
} else if bottom == "_" {
message = top
message = strings.TrimPrefix(message, "`")
message = strings.TrimSuffix(message, "`")
err := json.Unmarshal([]byte(message), &config)
if err == nil {
message = ""
for _, c := range config {
message += c.Text + "\n"
}
} else {
top, bottom := "", message
if strings.Contains(message, "||") {
parts = strings.Split(message, "||")
} else {
parts = strings.Split(message, "\n")
}
if len(parts) > 1 {
top, bottom = parts[0], parts[1]
}
if top == "_" {
message = bottom
} else if bottom == "_" {
message = top
}
topPos := p.bot.Config().GetFloat64("meme.top", 0.05)
bottomPos := p.bot.Config().GetFloat64("meme.bottom", 0.95)
config = []memeText{
{Text: top, XPerc: 0.5, YPerc: topPos},
{Text: bottom, XPerc: 0.5, YPerc: bottomPos},
}
}
bullyImg := p.bully(c, format, from.ID)
id, w, h, err := p.genMeme(format, top, bottom, bullyImg)
id, w, h, err := p.genMeme(format, bullyImg, config)
if err != nil {
msg := fmt.Sprintf("Hey %v, I couldn't download that image you asked for.", from.Name)
p.bot.Send(c, bot.Message, channel, msg)
@ -374,10 +305,46 @@ var defaultFormats = map[string]string{
"raptor": "Philosoraptor.jpg",
}
func (p *MemePlugin) genMeme(meme, top, bottom string, bully image.Image) (string, int, int, error) {
fontSizes := []float64{48, 36, 24, 16, 12}
fontSize := fontSizes[0]
func (p *MemePlugin) findFontSize(config []memeText, w, h int, sizes []float64) float64 {
fontSize := 12.0
m := gg.NewContext(w, h)
fontLocation := p.c.Get("meme.font", "impact.ttf")
longestStr, longestW := "", 0.0
for _, s := range config {
err := m.LoadFontFace(fontLocation, 12) // problem
if err != nil {
log.Error().Err(err).Msg("could not load font")
return fontSize
}
w, _ := m.MeasureString(s.Text)
if w > longestW {
longestStr = s.Text
longestW = w
}
}
for _, sz := range sizes {
err := m.LoadFontFace(fontLocation, sz) // problem
if err != nil {
log.Error().Err(err).Msg("could not load font")
return fontSize
}
topW, _ := m.MeasureString(longestStr)
if topW < float64(w) {
fontSize = sz
break
}
}
return fontSize
}
func (p *MemePlugin) genMeme(meme string, bully image.Image, config []memeText) (string, int, int, error) {
fontSizes := []float64{48, 36, 24, 16, 12}
formats := p.c.GetMap("meme.memes", defaultFormats)
path := uuid.New().String()
@ -405,6 +372,8 @@ func (p *MemePlugin) genMeme(meme, top, bottom string, bully image.Image) (strin
w := r.Dx()
h := r.Dy()
// /meme2 5guys [{"x": 0.1, "y": 0.1, "t": "test"}]
maxSz := p.c.GetFloat64("maxImgSz", 750.0)
if w > h {
@ -431,25 +400,7 @@ func (p *MemePlugin) genMeme(meme, top, bottom string, bully image.Image) (strin
m := gg.NewContext(w, h)
m.DrawImage(img, 0, 0)
fontLocation := p.c.Get("meme.font", "impact.ttf")
for _, sz := range fontSizes {
err = m.LoadFontFace(fontLocation, sz) // problem
if err != nil {
log.Error().Err(err).Msg("could not load font")
}
topW, _ := m.MeasureString(top)
botW, _ := m.MeasureString(bottom)
if topW < float64(w) && botW < float64(w) {
fontSize = sz
break
}
}
if top == "_" {
top = ""
}
if bottom == "_" {
bottom = ""
}
m.LoadFontFace(fontLocation, p.findFontSize(config, w, h, fontSizes))
// Apply black stroke
m.SetHexColor("#000")
@ -460,18 +411,21 @@ func (p *MemePlugin) genMeme(meme, top, bottom string, bully image.Image) (strin
if dx*dx+dy*dy >= strokeSize*strokeSize {
continue
}
x := float64(w/2 + dx)
y := float64(h) - fontSize + float64(dy)
y0 := fontSize + float64(dy)
m.DrawStringAnchored(top, x, y0, 0.5, 0.5)
m.DrawStringAnchored(bottom, x, y, 0.5, 0.5)
for _, c := range config {
x := float64(w)*c.XPerc + float64(dx)
y := float64(h)*c.YPerc + float64(dy)
m.DrawStringAnchored(c.Text, x, y, 0.5, 0.5)
}
}
}
// Apply white fill
m.SetHexColor("#FFF")
m.DrawStringAnchored(top, float64(w)/2, fontSize, 0.5, 0.5)
m.DrawStringAnchored(bottom, float64(w)/2, float64(h)-fontSize, 0.5, 0.5)
for _, c := range config {
x := float64(w) * c.XPerc
y := float64(h) * c.YPerc
m.DrawStringAnchored(c.Text, x, y, 0.5, 0.5)
}
i := bytes.Buffer{}
png.Encode(&i, m.Image())

110
plugins/meme/webHandlers.go Normal file
View File

@ -0,0 +1,110 @@
package meme
import (
"encoding/json"
"fmt"
"html/template"
"net/http"
"net/url"
"path"
"sort"
"github.com/rs/zerolog/log"
"github.com/velour/catbase/bot"
)
func (p *MemePlugin) all(w http.ResponseWriter, r *http.Request) {
memes := p.c.GetMap("meme.memes", defaultFormats)
values := webResps{}
for n, u := range memes {
realURL, err := url.Parse(u)
if err != nil || realURL.Scheme == "" {
realURL, err = url.Parse("https://imgflip.com/s/meme/" + u)
if err != nil {
values = append(values, webResp{n, "404.png"})
log.Error().Err(err).Msgf("invalid URL")
continue
}
}
values = append(values, webResp{n, realURL.String()})
}
sort.Sort(ByName{values})
out, err := json.Marshal(values)
if err != nil {
w.WriteHeader(500)
log.Error().Err(err).Msgf("could not serve all memes route")
return
}
w.Write(out)
}
func mkCheckError(w http.ResponseWriter) func(error) bool {
return func(err error) bool {
if err != nil {
log.Error().Err(err).Msgf("meme failed")
w.WriteHeader(500)
e, _ := json.Marshal(err)
w.Write(e)
return true
}
return false
}
}
func (p *MemePlugin) rmMeme(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodDelete {
w.WriteHeader(405)
fmt.Fprintf(w, "Incorrect HTTP method")
return
}
checkError := mkCheckError(w)
decoder := json.NewDecoder(r.Body)
values := webResp{}
err := decoder.Decode(&values)
if checkError(err) {
return
}
formats := p.c.GetMap("meme.memes", defaultFormats)
delete(formats, values.Name)
err = p.c.SetMap("meme.memes", formats)
checkError(err)
}
func (p *MemePlugin) addMeme(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
w.WriteHeader(405)
fmt.Fprintf(w, "Incorrect HTTP method")
return
}
checkError := mkCheckError(w)
decoder := json.NewDecoder(r.Body)
values := webResp{}
err := decoder.Decode(&values)
if checkError(err) {
return
}
formats := p.c.GetMap("meme.memes", defaultFormats)
formats[values.Name] = values.URL
err = p.c.SetMap("meme.memes", formats)
checkError(err)
}
func (p *MemePlugin) webRoot(w http.ResponseWriter, r *http.Request) {
var tpl = template.Must(template.New("factoidIndex").Parse(string(memeIndex)))
tpl.Execute(w, struct{ Nav []bot.EndPoint }{p.bot.GetWebNavigation()})
}
func (p *MemePlugin) img(w http.ResponseWriter, r *http.Request) {
_, file := path.Split(r.URL.Path)
id := file
if img, ok := p.images[id]; ok {
w.Write(img.repr)
} else {
w.WriteHeader(404)
w.Write([]byte("not found"))
}
p.images.cleanup()
}