Add tls-no-verify option to disallow certificate checks.

Closes #3

4 files changed, 34 insertions, 4 deletions

diff --git a/internal/feed/feed.go b/internal/feed/feed.go
index 7b9f0de..f111cd6 100644
--- a/internal/feed/feed.go
+++ b/internal/feed/feed.go
@@ -15,6 +15,7 @@ type Feed struct {
 	feed   *gofeed.Feed
 	items  []feeditem
 	cached CachedFeed
+	Global config.GlobalOptions
 }
 
 type feedDescriptor struct {
diff --git a/internal/feed/parse.go b/internal/feed/parse.go
index c027bd3..cc55581 100644
--- a/internal/feed/parse.go
+++ b/internal/feed/parse.go
@@ -2,7 +2,9 @@ package feed
 
 import (
 	ctxt "context"
+	"crypto/tls"
 	"fmt"
+	"net/http"
 	"time"
 
 	"github.com/mmcdole/gofeed"
@@ -10,14 +12,36 @@ import (
 	"github.com/Necoro/feed2imap-go/pkg/log"
 )
 
-func context() (ctxt.Context, ctxt.CancelFunc) {
-	return ctxt.WithTimeout(ctxt.Background(), 60*time.Second)
+// share HTTP clients
+var stdHTTPClient = &http.Client{Transport: http.DefaultTransport}
+var unsafeHTTPClient *http.Client
+
+func init() {
+	tlsConfig := &tls.Config{InsecureSkipVerify: true}
+	transport := http.DefaultTransport.(*http.Transport).Clone()
+	transport.TLSClientConfig = tlsConfig
+	unsafeHTTPClient = &http.Client{Transport: transport}
+}
+
+func context(timeout int) (ctxt.Context, ctxt.CancelFunc) {
+	return ctxt.WithTimeout(ctxt.Background(), time.Duration(timeout)*time.Second)
+}
+
+func setHTTPClient(parser *gofeed.Parser, disableTLS bool) {
+	if disableTLS {
+		parser.Client = unsafeHTTPClient
+	} else {
+		parser.Client = stdHTTPClient
+	}
 }
 
 func parseFeed(feed *Feed) error {
-	ctx, cancel := context()
+	ctx, cancel := context(feed.Global.Timeout)
 	defer cancel()
+
 	fp := gofeed.NewParser()
+	setHTTPClient(fp, *feed.NoTLS)
+
 	parsedFeed, err := fp.ParseURLWithContext(feed.Url, ctx)
 	if err != nil {
 		return fmt.Errorf("while fetching %s from %s: %w", feed.Name, feed.Url, err)
diff --git a/internal/feed/state.go b/internal/feed/state.go
index 455602c..154fafd 100644
--- a/internal/feed/state.go
+++ b/internal/feed/state.go
@@ -104,7 +104,7 @@ func NewState(cfg *config.Config) *State {
 	}
 
 	for name, parsedFeed := range cfg.Feeds {
-		state.feeds[name] = &Feed{Feed: parsedFeed}
+		state.feeds[name] = &Feed{Feed: parsedFeed, Global: cfg.GlobalOptions}
 	}
 
 	return &state
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 37dffcf..885b80e 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -40,6 +40,7 @@ type Options struct {
 	Disable    *bool `yaml:"disable"`
 	IgnHash    *bool `yaml:"ignore-hash"`
 	AlwaysNew  *bool `yaml:"always-new"`
+	NoTLS      *bool `yaml:"tls-no-verify"`
 }
 
 func (opt *Options) mergeFrom(other Options) {
@@ -58,6 +59,9 @@ func (opt *Options) mergeFrom(other Options) {
 	if opt.Disable == nil {
 		opt.Disable = other.Disable
 	}
+	if opt.NoTLS == nil {
+		opt.NoTLS = other.NoTLS
+	}
 }
 
 // Default feed options
@@ -72,6 +76,7 @@ func init() {
 		IgnHash:    &fal,
 		AlwaysNew:  &fal,
 		Disable:    &fal,
+		NoTLS:      &fal,
 	}
 }