mirror of https://github.com/nyancrimew/goop.git
74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
package workers
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import (
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"io/ioutil"
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"os"
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"github.com/deletescape/goop/internal/jobtracker"
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"github.com/deletescape/goop/internal/utils"
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"github.com/phuslu/log"
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"github.com/valyala/fasthttp"
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)
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func DownloadWorker(c *fasthttp.Client, baseUrl, baseDir string, jt *jobtracker.JobTracker, allowHtml, allowEmpty bool) {
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for {
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select {
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case file := <-jt.Queue:
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downloadWork(c, baseUrl, baseDir, file, jt, allowHtml, allowEmpty)
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default:
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if !jt.HasWork() {
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return
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}
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jobtracker.Nap()
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}
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}
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}
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func downloadWork(c *fasthttp.Client, baseUrl, baseDir, file string, jt *jobtracker.JobTracker, allowHtml, allowEmpty bool) {
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jt.StartWork()
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defer jt.EndWork()
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if file == "" {
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return
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}
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checkRatelimted()
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targetFile := utils.Url(baseDir, file)
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if utils.Exists(targetFile) {
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log.Info().Str("file", targetFile).Msg("already fetched, skipping redownload")
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return
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}
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uri := utils.Url(baseUrl, file)
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code, body, err := c.Get(nil, uri)
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if err == nil && code != 200 {
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if code == 429 {
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setRatelimited()
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jt.AddJob(file)
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return
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}
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log.Warn().Str("uri", uri).Int("code", code).Msg("couldn't fetch file")
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return
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} else if err != nil {
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log.Error().Str("uri", uri).Int("code", code).Err(err).Msg("couldn't fetch file")
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return
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}
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if !allowHtml && utils.IsHtml(body) {
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log.Warn().Str("uri", uri).Msg("file appears to be html, skipping")
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return
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}
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if !allowEmpty && utils.IsEmptyBytes(body) {
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log.Warn().Str("uri", uri).Msg("file appears to be empty, skipping")
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return
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}
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if err := utils.CreateParentFolders(targetFile); err != nil {
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log.Error().Str("uri", uri).Str("file", targetFile).Err(err).Msg("couldn't create parent directories")
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return
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}
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if err := ioutil.WriteFile(targetFile, body, os.ModePerm); err != nil {
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log.Error().Str("uri", uri).Str("file", targetFile).Err(err).Msg("clouldn't write file")
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return
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}
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log.Info().Str("uri", uri).Str("file", file).Msg("fetched file")
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}
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