swarm: ctx propagation; bmt fixes; pss generic notification framework (#17150)

* cmd/swarm: minor cli flag text adjustments

* swarm/api/http: sticky footer for swarm landing page using flex

* swarm/api/http: sticky footer for error pages and fix for multiple choices

* cmd/swarm, swarm/storage, swarm: fix  mingw on windows test issues

* cmd/swarm: update description of swarm cmd

* swarm: added network ID test

* cmd/swarm: support for smoke tests on the production swarm cluster

* cmd/swarm/swarm-smoke: simplify cluster logic as per suggestion

* swarm: propagate ctx to internal apis (#754)

* swarm/metrics: collect disk measurements

* swarm/bmt: fix io.Writer interface

  * Write now tolerates arbitrary variable buffers
  * added variable buffer tests
  * Write loop and finalise optimisation
  * refactor / rename
  * add tests for empty input

* swarm/pss: (UPDATE) Generic notifications package (#744)

swarm/pss: Generic package for creating pss notification svcs

* swarm: Adding context to more functions

* swarm/api: change colour of landing page in templates

* swarm/api: change landing page to react to enter keypress

4 files changed, 9 insertions, 7 deletions

diff --git a/swarm/fuse/fuse_file.go b/swarm/fuse/fuse_file.go
index 80c26fe05..be3b01c8c 100644
--- a/swarm/fuse/fuse_file.go
+++ b/swarm/fuse/fuse_file.go
@@ -84,7 +84,7 @@ func (sf *SwarmFile) Attr(ctx context.Context, a *fuse.Attr) error {
 	a.Gid = uint32(os.Getegid())
 
 	if sf.fileSize == -1 {
-		reader, _ := sf.mountInfo.swarmApi.Retrieve(sf.addr)
+		reader, _ := sf.mountInfo.swarmApi.Retrieve(ctx, sf.addr)
 		quitC := make(chan bool)
 		size, err := reader.Size(quitC)
 		if err != nil {
@@ -104,7 +104,7 @@ func (sf *SwarmFile) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse
 	sf.lock.RLock()
 	defer sf.lock.RUnlock()
 	if sf.reader == nil {
-		sf.reader, _ = sf.mountInfo.swarmApi.Retrieve(sf.addr)
+		sf.reader, _ = sf.mountInfo.swarmApi.Retrieve(ctx, sf.addr)
 	}
 	buf := make([]byte, req.Size)
 	n, err := sf.reader.ReadAt(buf, req.Offset)
diff --git a/swarm/fuse/swarmfs_test.go b/swarm/fuse/swarmfs_test.go
index ed2021c4e..d579d15a0 100644
--- a/swarm/fuse/swarmfs_test.go
+++ b/swarm/fuse/swarmfs_test.go
@@ -20,6 +20,7 @@ package fuse
 
 import (
 	"bytes"
+	"context"
 	"crypto/rand"
 	"flag"
 	"fmt"
@@ -110,7 +111,7 @@ func createTestFilesAndUploadToSwarm(t *testing.T, api *api.API, files map[strin
 	}
 
 	//upload directory to swarm and return hash
-	bzzhash, err := api.Upload(uploadDir, "", toEncrypt)
+	bzzhash, err := api.Upload(context.TODO(), uploadDir, "", toEncrypt)
 	if err != nil {
 		t.Fatalf("Error uploading directory %v: %vm encryption: %v", uploadDir, err, toEncrypt)
 	}
diff --git a/swarm/fuse/swarmfs_unix.go b/swarm/fuse/swarmfs_unix.go
index 74dd84a90..7a913b0de 100644
--- a/swarm/fuse/swarmfs_unix.go
+++ b/swarm/fuse/swarmfs_unix.go
@@ -19,6 +19,7 @@
 package fuse
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"os"
@@ -104,7 +105,7 @@ func (swarmfs *SwarmFS) Mount(mhash, mountpoint string) (*MountInfo, error) {
 	}
 
 	log.Trace("swarmfs mount: getting manifest tree")
-	_, manifestEntryMap, err := swarmfs.swarmApi.BuildDirectoryTree(mhash, true)
+	_, manifestEntryMap, err := swarmfs.swarmApi.BuildDirectoryTree(context.TODO(), mhash, true)
 	if err != nil {
 		return nil, err
 	}
diff --git a/swarm/fuse/swarmfs_util.go b/swarm/fuse/swarmfs_util.go
index 9bbb0f6ac..4f2e1416b 100644
--- a/swarm/fuse/swarmfs_util.go
+++ b/swarm/fuse/swarmfs_util.go
@@ -47,7 +47,7 @@ func externalUnmount(mountPoint string) error {
 }
 
 func addFileToSwarm(sf *SwarmFile, content []byte, size int) error {
-	fkey, mhash, err := sf.mountInfo.swarmApi.AddFile(sf.mountInfo.LatestManifest, sf.path, sf.name, content, true)
+	fkey, mhash, err := sf.mountInfo.swarmApi.AddFile(context.TODO(), sf.mountInfo.LatestManifest, sf.path, sf.name, content, true)
 	if err != nil {
 		return err
 	}
@@ -66,7 +66,7 @@ func addFileToSwarm(sf *SwarmFile, content []byte, size int) error {
 }
 
 func removeFileFromSwarm(sf *SwarmFile) error {
-	mkey, err := sf.mountInfo.swarmApi.RemoveFile(sf.mountInfo.LatestManifest, sf.path, sf.name, true)
+	mkey, err := sf.mountInfo.swarmApi.RemoveFile(context.TODO(), sf.mountInfo.LatestManifest, sf.path, sf.name, true)
 	if err != nil {
 		return err
 	}
@@ -102,7 +102,7 @@ func removeDirectoryFromSwarm(sd *SwarmDir) error {
 }
 
 func appendToExistingFileInSwarm(sf *SwarmFile, content []byte, offset int64, length int64) error {
-	fkey, mhash, err := sf.mountInfo.swarmApi.AppendFile(sf.mountInfo.LatestManifest, sf.path, sf.name, sf.fileSize, content, sf.addr, offset, length, true)
+	fkey, mhash, err := sf.mountInfo.swarmApi.AppendFile(context.TODO(), sf.mountInfo.LatestManifest, sf.path, sf.name, sf.fileSize, content, sf.addr, offset, length, true)
 	if err != nil {
 		return err
 	}