server: adding no-store header (#476 )

In order to prevent viewing content, which max-download rate has been reached, we need to ensure the data is not stored locally in a browser cache. To achieve this, we set the Cache-Control Setting to "no-store" according to: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control fixes #470
correct typo (#480 )
2022-04-10 12:13:06 +02:00 · 2022-04-06 01:33:40 +02:00 · 2022-04-03 14:55:15 +02:00 · 2022-04-03 06:17:51 +02:00 · 2022-03-02 13:26:00 +01:00 · 2022-02-09 12:37:11 +01:00
18 changed files with 698 additions and 376 deletions
--- a/.github/workflows/build-docker-images.yml
+++ b/.github/workflows/build-docker-images.yml
@@ -34,9 +34,11 @@ jobs:
          fi

          TAGS="--tag ${DOCKER_IMAGE}:${VERSION}"
+          TAGS_NOROOT="--tag ${DOCKER_IMAGE}:${VERSION}-noroot"

          if [ $VERSION = edge -o $VERSION = nightly ]; then
            TAGS="$TAGS --tag ${DOCKER_IMAGE}:latest"
+            TAGS_NOROOT="$TAGS_NOROOT --tag ${DOCKER_IMAGE}:latest-noroot"
          fi

          echo ::set-output name=docker_image::${DOCKER_IMAGE}
@@ -46,6 +48,12 @@ jobs:
            --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') \
            --build-arg VCS_REF=${GITHUB_SHA::8} \
            ${TAGS} .
+          echo ::set-output name=buildx_args_noroot::--platform ${DOCKER_PLATFORMS} \
+            --build-arg VERSION=${VERSION} \
+            --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') \
+            --build-arg VCS_REF=${GITHUB_SHA::8} \
+            --build-arg RUNAS=noroot \
+            ${TAGS_NOROOT} .
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1
@@ -64,6 +72,7 @@ jobs:
        name: Docker Buildx (build)
        run: |
          docker buildx build --no-cache --pull --output "type=image,push=false" ${{ steps.prepare.outputs.buildx_args }}
+          docker buildx build --output "type=image,push=false" ${{ steps.prepare.outputs.buildx_args_noroot }}
      -
        name: Docker Login
        if: success() && github.event_name != 'pull_request'
@@ -77,11 +86,13 @@ jobs:
        if: success() && github.event_name != 'pull_request'
        run: |
          docker buildx build --output "type=image,push=true" ${{ steps.prepare.outputs.buildx_args }}
+          docker buildx build --output "type=image,push=true" ${{ steps.prepare.outputs.buildx_args_noroot }}
      -
        name: Docker Check Manifest
        if: always() && github.event_name != 'pull_request'
        run: |
          docker run --rm mplatform/mquery ${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.version }}
+          docker run --rm mplatform/mquery ${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.version }}-noroot
      -
        name: Clear
        if: always() && github.event_name != 'pull_request'
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,3 +29,17 @@ jobs:
          go version
          go vet ./...
          go test ./...
+  golangci:
+    name: Linting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v1
+        with:
+          go-version: 1.17
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v2
+        with:
+          version: latest
+          skip-go-installation: true
+          args: "--config .golangci.yml"
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -0,0 +1,20 @@
+run:
+  deadline: 10m
+  issues-exit-code: 1
+  tests: true
+
+output:
+  format: colored-line-number
+  print-issued-lines: true
+  print-linter-name: true
+
+linters:
+  disable:
+    - deadcode
+    - unused
+
+issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0
+  new: false
+  exclude-use-default: false
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -21,5 +21,5 @@ This code of conduct applies both within project spaces and in public spaces whe

 Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by opening an issue or contacting one or more of the project maintainers.

-This Code of Conduct is adapted from the [Contributor Covenant] (https://www.contributor-covenant.org), version 1.2.0, available at https://www.contributor-covenant.org/version/1/2/0/code-of-conduct.html
+This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org), version 1.2.0, available at https://www.contributor-covenant.org/version/1/2/0/code-of-conduct.html

--- a/17
+++ b/17
@@ -14,12 +14,27 @@ ENV GO111MODULE=on
 # build & install server
 RUN CGO_ENABLED=0 go build -tags netgo -ldflags "-X github.com/dutchcoders/transfer.sh/cmd.Version=$(git describe --tags) -a -s -w -extldflags '-static'" -o /go/bin/transfersh

+ARG PUID=5000 \
+    PGID=5000 \
+    RUNAS
+
+RUN mkdir -p /tmp/useradd && \
+    if [ ! -z "$RUNAS" ]; then \
+    echo "${RUNAS}:x:${PUID}:${PGID}::/nonexistent:/sbin/nologin" >> /tmp/useradd/passwd && \
+    echo "${RUNAS}:!:::::::" >> /tmp/useradd/shadow && \
+    echo "${RUNAS}:x:${PGID}:" >> /tmp/useradd/group && \
+    echo "${RUNAS}:!::" >> /tmp/useradd/groupshadow; else touch /tmp/useradd/unused; fi
+
 FROM scratch AS final
 LABEL maintainer="Andrea Spacca <andrea.spacca@gmail.com>"
+ARG RUNAS

-COPY --from=build  /go/bin/transfersh /go/bin/transfersh
+COPY --from=build /tmp/useradd/* /etc/
+COPY --from=build --chown=${RUNAS}  /go/bin/transfersh /go/bin/transfersh
 COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt

+USER ${RUNAS}
+
 ENTRYPOINT ["/go/bin/transfersh", "--listener", ":8080"]

 EXPOSE 8080
--- a/5
+++ b/5
@@ -0,0 +1,5 @@
+.PHONY: lint
+
+lint:
+	golangci-lint run --out-format=github-actions --config .golangci.yml 
+
--- a/README.md
+++ b/README.md
@@ -90,6 +90,7 @@ temp-path | path to temp folder | system temp | TEMP_PATH |
 web-path | path to static web files (for development or custom front end) | | WEB_PATH |
 proxy-path | path prefix when service is run behind a proxy | | PROXY_PATH |
 proxy-port | port of the proxy when the service is run behind a proxy | | PROXY_PORT |
+email-contact | email contact for the front end | | EMAIL_CONTACT |
 ga-key | google analytics key for the front end | | GA_KEY |
 provider | which storage provider to use | (s3, storj, gdrive or local) |
 uservoice-key | user voice key for the front end  | | USERVOICE_KEY |
@@ -110,6 +111,7 @@ lets-encrypt-hosts | hosts to use for lets encrypt certificates (comma seperated
 log | path to log file| | LOG |
 cors-domains | comma separated list of domains for CORS, setting it enable CORS | | CORS_DOMAINS |
 clamav-host | host for clamav feature  | | CLAMAV_HOST |
+perform-clamav-prescan | prescan every upload through clamav feature (clamav-host must be a local clamd unix socket) | | PERFORM_CLAMAV_PRESCAN |
 rate-limit | request per minute  | | RATE_LIMIT |
 max-upload-size | max upload size in kilobytes  | | MAX_UPLOAD_SIZE |
 purge-days | number of days after the uploads are purged automatically | | PURGE_DAYS |   
@@ -138,12 +140,31 @@ $ go build -o transfersh main.go

 ## Docker

-For easy deployment, we've created a Docker container.
+For easy deployment, we've created an official Docker container. There are two variants, differing only by which user runs the process.
+
+The default one will run as `root`:

 ```bash
 docker run --publish 8080:8080 dutchcoders/transfer.sh:latest --provider local --basedir /tmp/
 ```

+The one tagged with the suffix `-noroot` will use `5000` as both UID and GID:
+```bash
+docker run --publish 8080:8080 dutchcoders/transfer.sh:latest-noroot --provider local --basedir /tmp/
+```
+
+### Building the Container
+You can also build the container yourself. This allows you to choose which UID/GID will be used, e.g. when using NFS mounts:
+```bash
+# Build arguments:
+# * RUNAS: If empty, the container will run as root.
+#          Set this to anything to enable UID/GID selection.
+# * PUID:  UID of the process. Needs RUNAS != "". Defaults to 5000.
+# * PGID:  GID of the process. Needs RUNAS != "". Defaults to 5000.
+
+docker build -t transfer.sh-noroot --build-arg RUNAS=doesntmatter --build-arg PUID=1337 --build-arg PGID=1338 .
+```
+
 ## S3 Usage

 For the usage with a AWS S3 Bucket, you just need to specify the following options:
@@ -202,6 +223,41 @@ You need to create an OAuth Client id from console.cloud.google.com, download th

 ```go run main.go --provider gdrive --basedir /tmp/ --gdrive-client-json-filepath /[credential_dir] --gdrive-local-config-path [directory_to_save_config] ```

+## Shell functions
+
+### Bash and zsh (multiple files uploaded as zip archive)
+##### Add this to .bashrc or .zshrc or its equivalent
+```bash
+transfer(){ if [ $# -eq 0 ];then echo "No arguments specified.\nUsage:\n transfer <file|directory>\n ... | transfer <file_name>">&2;return 1;fi;if tty -s;then file="$1";file_name=$(basename "$file");if [ ! -e "$file" ];then echo "$file: No such file or directory">&2;return 1;fi;if [ -d "$file" ];then file_name="$file_name.zip" ,;(cd "$file"&&zip -r -q - .)|curl --progress-bar --upload-file "-" "https://transfer.sh/$file_name"|tee /dev/null,;else cat "$file"|curl --progress-bar --upload-file "-" "https://transfer.sh/$file_name"|tee /dev/null;fi;else file_name=$1;curl --progress-bar --upload-file "-" "https://transfer.sh/$file_name"|tee /dev/null;fi;}
+```
+
+#### Now you can use transfer function
+```
+$ transfer hello.txt
+```
+
+
+### Zsh (with delete url outpu)
+##### Add this to .zshrc or its equivalent
+```bash
+transfer()
+{
+    local file="${1}"
+    local filename="${file##*/}"
+    # show delete link from the response header after upload. the command "sed" is necessary to clean up the output, "gsub()" in "awk" does not work.
+    curl --request PUT --progress-bar --dump-header - --upload-file "${file}" "https://transfer.sh/${filename}" | sed "s/#//g" | awk '/x-url-delete/ { print "Delete command: curl --request DELETE " $2 } END{ print "Download link: " $1 }'
+}
+```
+
+#### Sample ouput
+```bash
+$ transfer image.img
+######################################################################################################################################################################################################################################## 100.0%
+Delete command: curl --request DELETE https://transfer.sh/Ge9cuW/image.img/<some_delete_token>
+Download link: https://transfer.sh/Ge9cuW/image.img
+```
+
+
 ## Contributions

 Contributions are welcome.
--- a/cmd/cmd.go
+++ b/cmd/cmd.go
@@ -98,6 +98,12 @@ var globalFlags = []cli.Flag{
 		Value:  "",
 		EnvVar: "PROXY_PORT",
 	},
+	cli.StringFlag{
+		Name:   "email-contact",
+		Usage:  "email address to link in Contact Us (front end)",
+		Value:  "",
+		EnvVar: "EMAIL_CONTACT",
+	},
 	cli.StringFlag{
 		Name:   "ga-key",
 		Usage:  "key for google analytics (front end)",
@@ -234,6 +240,11 @@ var globalFlags = []cli.Flag{
 		Value:  "",
 		EnvVar: "CLAMAV_HOST",
 	},
+	cli.BoolFlag{
+		Name:   "perform-clamav-prescan",
+		Usage:  "perform-clamav-prescan",
+		EnvVar: "PERFORM_CLAMAV_PRESCAN",
+	},
 	cli.StringFlag{
 		Name:   "virustotal-key",
 		Usage:  "virustotal-key",
@@ -348,6 +359,10 @@ func New() *Cmd {
 			options = append(options, server.ProxyPort(v))
 		}

+		if v := c.String("email-contact"); v != "" {
+			options = append(options, server.EmailContact(v))
+		}
+
 		if v := c.String("ga-key"); v != "" {
 			options = append(options, server.GoogleAnalytics(v))
 		}
@@ -378,6 +393,14 @@ func New() *Cmd {
 			options = append(options, server.ClamavHost(v))
 		}

+		if v := c.Bool("perform-clamav-prescan"); v {
+			if c.String("clamav-host") == "" {
+				panic("clamav-host not set")
+			}
+
+			options = append(options, server.PerformClamavPrescan(v))
+		}
+
 		if v := c.Int64("max-upload-size"); v > 0 {
 			options = append(options, server.MaxUploadSize(v))
 		}
--- a/flake.nix
+++ b/flake.nix
@@ -51,6 +51,7 @@
              proxy-path = mkOption { type = types.nullOr types.str; description = "path prefix when service is run behind a proxy"; };
              proxy-port = mkOption { type = types.nullOr types.str; description = "port of the proxy when the service is run behind a proxy"; };
              ga-key = mkOption { type = types.nullOr types.str; description = "google analytics key for the front end"; };
+              email-contact = mkOption { type = types.nullOr types.str; description = "email contact for the front end"; };
              uservoice-key = mkOption { type = types.nullOr types.str; description = "user voice key for the front end"; };
              lets-encrypt-hosts = mkOption { type = types.nullOr (types.listOf types.str); description = "hosts to use for lets encrypt certificates"; };
              log = mkOption { type = types.nullOr types.str; description = "path to log file"; };
--- a/go.mod
+++ b/go.mod
@@ -7,12 +7,10 @@ require (
 	github.com/PuerkitoBio/ghost v0.0.0-20160324114900-206e6e460e14
 	github.com/VojtechVitek/ratelimit v0.0.0-20160722140851-dc172bc0f6d2
 	github.com/aws/aws-sdk-go v1.37.14
-	github.com/calebcase/tmpfile v1.0.2 // indirect
-	github.com/chris-ramon/douceur v0.2.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
 	github.com/dutchcoders/go-clamd v0.0.0-20170520113014-b970184f4d9e
 	github.com/dutchcoders/go-virustotal v0.0.0-20140923143438-24cc8e6fa329
-	github.com/dutchcoders/transfer.sh-web v0.0.0-20210819203540-bbdd40be1311
+	github.com/dutchcoders/transfer.sh-web v0.0.0-20211215083008-31e11925a9d3
 	github.com/elazarl/go-bindata-assetfs v1.0.1
 	github.com/fatih/color v1.10.0
 	github.com/garyburd/redigo v1.6.2 // indirect
@@ -27,12 +25,12 @@ require (
 	github.com/tomasen/realip v0.0.0-20180522021738-f0c99a92ddce
 	github.com/urfave/cli v1.22.5
 	go.opencensus.io v0.22.6 // indirect
-	golang.org/x/crypto v0.0.0-20210415154028-4f45737414dc
+	golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa
 	golang.org/x/net v0.0.0-20210614182718-04defd469f4e
 	golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99
 	google.golang.org/api v0.40.0
 	google.golang.org/genproto v0.0.0-20210218151259-fe80b386bf06 // indirect
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15
-	storj.io/common v0.0.0-20210504141454-bcb03a80052f
-	storj.io/uplink v1.5.0-rc.1.0.20210512164354-e2e5889614a9
+	storj.io/common v0.0.0-20220131120956-e74f624a3d55
+	storj.io/uplink v1.7.2-0.20220131124001-c1db742c840d
 )
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,8 @@
 cloud.google.com/go v0.16.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo=
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
@@ -35,36 +37,32 @@ cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0Zeo
 cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
+dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
+dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
+dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
+git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/PuerkitoBio/ghost v0.0.0-20160324114900-206e6e460e14 h1:3zOOc7WdrATDXof+h/rBgMsg0sAmZIEVHft1UbWHh94=
 github.com/PuerkitoBio/ghost v0.0.0-20160324114900-206e6e460e14/go.mod h1:+VFiaivV54Sa94ijzA/ZHQLoHuoUIS9hIqCK6f/76Zw=
 github.com/VojtechVitek/ratelimit v0.0.0-20160722140851-dc172bc0f6d2 h1:sIvihcW4qpN5qGSjmrsDDAbLpEq5tuHjJJfWY0Hud5Y=
 github.com/VojtechVitek/ratelimit v0.0.0-20160722140851-dc172bc0f6d2/go.mod h1:3YwJE8rEisS9eraee0hygGG4G3gqX8H8Nyu+nPTUnGU=
-github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
 github.com/aws/aws-sdk-go v1.37.14 h1:thuR1hd1doCvsaMDYDMhqCGSmw39bSvZaw+DPGhMm5w=
 github.com/aws/aws-sdk-go v1.37.14/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
 github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
 github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
 github.com/bradfitz/gomemcache v0.0.0-20170208213004-1952afaa557d/go.mod h1:PmM6Mmwb0LSuEubjR8N7PtNe1KxZLtOUHtbeikc5h60=
-github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
-github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
-github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
-github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce h1:YtWJF7RHm2pYCvA5t0RPmAaLUhREsKuKd+SLhxFbFeQ=
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@@ -100,15 +97,23 @@ github.com/fatih/color v1.10.0 h1:s36xzo75JdqLaaWoiEHk767eHiwo0598uUxyfiPkDsg=
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@@ -119,6 +124,7 @@ github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4er
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@@ -126,6 +132,7 @@ github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt
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@@ -139,8 +146,10 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
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@@ -154,8 +163,11 @@ github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -169,13 +181,17 @@ github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hf
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 github.com/spacemonkeygo/monkit/v3 v3.0.4/go.mod h1:JcK1pCbReQsOsMKF/POFSZCq7drXFybgGmbc27tuwes=
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-github.com/spacemonkeygo/monkit/v3 v3.0.10/go.mod h1:kj1ViJhlyADa7DiA4xVnTuPA46lFKbM7mxQTrXCuJP4=
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+github.com/spacemonkeygo/monkit/v3 v3.0.17/go.mod h1:kj1ViJhlyADa7DiA4xVnTuPA46lFKbM7mxQTrXCuJP4=
 github.com/spacemonkeygo/monotime v0.0.0-20180824235756-e3f48a95f98a/go.mod h1:ul4bvvnCOPZgq8w0nTkSmWVg/hauVpFS97Am1YM1XXo=
 github.com/spf13/afero v0.0.0-20170901052352-ee1bd8ee15a1/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
 github.com/spf13/cast v1.1.0/go.mod h1:r2rcYCSwa1IExKTDiTfzaxqT2FNHs8hODu4LnUfgKEg=
@@ -251,27 +320,34 @@ github.com/spf13/jwalterweatherman v0.0.0-20170901151539-12bd96e66386/go.mod h1:
 github.com/spf13/pflag v1.0.1-0.20170901120850-7aff26db30c1/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/viper v1.0.0/go.mod h1:A8kyI5cUJhb8N+3pkfONlcEcZbueH6nhAm0Fq7SrnBM=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
-github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-github.com/zeebo/admission/v3 v3.0.2/go.mod h1:BP3isIv9qa2A7ugEratNq1dnl2oZRXaQUGdU7WXKtbw=
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 github.com/zeebo/errs v1.2.2/go.mod h1:sgbWHsvVuTPHcqJJGQ1WhI5KbWlHYz+2+2C/LSEtCw4=
 github.com/zeebo/float16 v0.1.0/go.mod h1:fssGvvXu+XS8MH57cKmyrLB/cqioYeYX/2mXCN3a5wo=
 github.com/zeebo/incenc v0.0.0-20180505221441-0d92902eec54/go.mod h1:EI8LcOBDlSL3POyqwC1eJhOYlMBMidES+613EtmmT5w=
+go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
@@ -280,15 +356,18 @@ go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.5/go.mod h1:5pWMHQbX5EPX2/62yrJeAkowc+lfs/XD7Uxpq3pI6kk=
 go.opencensus.io v0.22.6 h1:BdkrbWrzDlV9dnbzoP7sfN+dHheJ4J9JOaYxcUDL+ok=
 go.opencensus.io v0.22.6/go.mod h1:XItmlyltB5F7CS4xOC1DcqMoFqwtC6OG2xF7mCv7P7E=
-golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+go4.org v0.0.0-20180809161055-417644f6feb5/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
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 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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@@ -301,6 +380,7 @@ golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EH
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
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 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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@@ -322,13 +402,16 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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+golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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@@ -347,6 +430,7 @@ golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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+golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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@@ -356,12 +440,15 @@ golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
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 golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 h1:qWPm9rbaAMKs8Bq/9LRpbMqxWRVUAQwMI9fVrssnTfw=
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+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20210614182718-04defd469f4e h1:XpT3nA5TvE525Ne3hInMh6+GETgn27Zfm9dxsThnX2Q=
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 golang.org/x/oauth2 v0.0.0-20170912212905-13449ad91cb2/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
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@@ -372,6 +459,7 @@ golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5/go.mod h1:KelEdhl1UZF7XfJ
 golang.org/x/oauth2 v0.0.0-20210113205817-d3ed898aa8a3/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99 h1:5vD4XjIc0X5+kHZjx4UecYdjA6mJo+XXNoaW0EjU5Os=
 golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
+golang.org/x/perf v0.0.0-20180704124530-6e6d33e29852/go.mod h1:JLpeXjPJfIyPr5TlbXLkXWLhP8nz10XfvxElABhCtcw=
 golang.org/x/sync v0.0.0-20170517211232-f52d1811a629/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -388,17 +476,21 @@ golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cO
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200113162924-86b910548bc1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -412,6 +504,7 @@ golang.org/x/sys v0.0.0-20200331124033-c3d80250170d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200511232937-7e40ca221e25/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200515095857-1151b9dac4a9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200905004654-be1d3432aa8f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -419,12 +512,17 @@ golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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-golang.org/x/sys v0.0.0-20210420072515-93ed5bcd2bfe h1:WdX7u8s3yOigWAhHEaDl8r9G+4XwFQEQFtBMYyN+kXQ=
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 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -432,15 +530,17 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.5 h1:i6eZZ+zk0SOf0xgBpEpPD18qWcJda6q1sxt3S0kzyUQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20170424234030-8be79e1e0910/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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@@ -485,15 +585,20 @@ golang.org/x/tools v0.0.0-20200904185747-39188db58858/go.mod h1:Cj7w3i3Rnn0Xh82u
 golang.org/x/tools v0.0.0-20201110124207-079ba7bd75cd/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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+golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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 google.golang.org/api v0.0.0-20170921000349-586095a6e407/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
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+google.golang.org/api v0.0.0-20181030000543-1d582fd0359e/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
+google.golang.org/api v0.1.0/go.mod h1:UGEZY7KEX120AnNLIHFMKIo4obdJhkp2tPbaPlQx13Y=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
@@ -515,6 +620,8 @@ google.golang.org/api v0.36.0/go.mod h1:+z5ficQTmoYpPn8LCUNVpK5I7hwkpjbcgqA7I34q
 google.golang.org/api v0.40.0 h1:uWrpz12dpVPn7cojP82mk02XDgTJLDPc2KbVTxrWb4A=
 google.golang.org/api v0.40.0/go.mod h1:fYKFpnQN0DsDSKRVRcQSDQNtqWPfM9i+zNPxepjRCQ8=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/appengine v1.3.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
@@ -524,6 +631,10 @@ google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6
 google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
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 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
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 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
@@ -561,6 +672,9 @@ google.golang.org/genproto v0.0.0-20210212180131-e7f2df4ecc2d/go.mod h1:FWY/as6D
 google.golang.org/genproto v0.0.0-20210218151259-fe80b386bf06 h1:Px6YyLaNKEo5eoniIBAv6Es0jbvyEmSYqOac64iS2Rs=
 google.golang.org/genproto v0.0.0-20210218151259-fe80b386bf06/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/grpc v1.2.1-0.20170921194603-d4b75ebd4f9f/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
+google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
+google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
+google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@@ -588,21 +702,30 @@ google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
-google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
+google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -613,9 +736,11 @@ honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-storj.io/common v0.0.0-20210504141454-bcb03a80052f h1:TwWEzxjvhnkCKUGds4HQKtAgFBjzf/C0hcA1luiNuKI=
-storj.io/common v0.0.0-20210504141454-bcb03a80052f/go.mod h1:PdP3eTld9RqSV3E4K44JSlw7Z/zNsymj9rnKuHFKhJE=
-storj.io/drpc v0.0.20 h1:nzOxsetLi0fJ8xCL92LPlYL0B6iYdDDk1Cpdbn0/r9Y=
-storj.io/drpc v0.0.20/go.mod h1:eAxUDk8HWvGl9iqznpuphtZ+WIjIGPJFqNXuKHgRiMM=
-storj.io/uplink v1.5.0-rc.1.0.20210512164354-e2e5889614a9 h1:F+A+Ki4eo3uzYXxesihRBq7PYBhU8MgfZeebd4O8hio=
-storj.io/uplink v1.5.0-rc.1.0.20210512164354-e2e5889614a9/go.mod h1:geRW2dh4rvPhgruFZbN71LSYkMmCJLpwg0y8K/uLr3Y=
+sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
+sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
+storj.io/common v0.0.0-20220131120956-e74f624a3d55 h1:HgFcPy1vohRJ4VRRGej92N31i5znL1KGWhDVgGgjBG4=
+storj.io/common v0.0.0-20220131120956-e74f624a3d55/go.mod h1:m0489td5+rKDdoiYOzCkh3CfGW/cLyntZiYfso+QfMs=
+storj.io/drpc v0.0.29 h1:Ihd4ls/JQFr0lctefie3iu+3QM4duccCKr9uMzf4sKY=
+storj.io/drpc v0.0.29/go.mod h1:6rcOyR/QQkSTX/9L5ZGtlZaE2PtXTTZl8d+ulSeeYEg=
+storj.io/uplink v1.7.2-0.20220131124001-c1db742c840d h1:Fb9Tht/h8KJbn02obTM1mseR4b7WQ7PCf+Nc3wXC3vk=
+storj.io/uplink v1.7.2-0.20220131124001-c1db742c840d/go.mod h1:BYnzl+ordVACxbWM7eKUvkqC+GvSnMmVbIyA2BNGBmk=
--- a/main.go
+++ b/main.go
@@ -1,8 +1,16 @@
 package main

-import "github.com/dutchcoders/transfer.sh/cmd"
+import (
+	"log"
+	"os"
+
+	"github.com/dutchcoders/transfer.sh/cmd"
+)

 func main() {
 	app := cmd.New()
-	app.RunAndExitOnError()
+	err := app.Run(os.Args)
+	if err != nil {
+		log.Fatal(err)
+	}
 }
--- a/server/clamav.go
+++ b/server/clamav.go
@@ -27,19 +27,19 @@ THE SOFTWARE.
 package server

 import (
-	// _ "transfer.sh/app/handlers"
-	// _ "transfer.sh/app/utils"
-
+	"errors"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"time"

 	clamd "github.com/dutchcoders/go-clamd"
-
 	"github.com/gorilla/mux"
 )

+const clamavScanStatusOK = "OK"
+
 func (s *Server) scanHandler(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)

@@ -50,25 +50,53 @@ func (s *Server) scanHandler(w http.ResponseWriter, r *http.Request) {

 	s.logger.Printf("Scanning %s %d %s", filename, contentLength, contentType)

-	var reader io.Reader
-
-	reader = r.Body
-
-	c := clamd.NewClamd(s.ClamAVDaemonHost)
-
-	abort := make(chan bool)
-	defer close(abort)
-	response, err := c.ScanStream(reader, abort)
+	file, err := ioutil.TempFile(s.tempPath, "clamav-")
+	defer s.cleanTmpFile(file)
 	if err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, err.Error(), 500)
+		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}

+	_, err = io.Copy(file, r.Body)
+	if err != nil {
+		s.logger.Printf("%s", err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	status, err := s.performScan(file.Name())
+	if err != nil {
+		s.logger.Printf("%s", err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	_, _ = w.Write([]byte(fmt.Sprintf("%v\n", status)))
+}
+
+func (s *Server) performScan(path string) (string, error) {
+	c := clamd.NewClamd(s.ClamAVDaemonHost)
+
+	responseCh := make(chan chan *clamd.ScanResult)
+	errCh := make(chan error)
+	go func(responseCh chan chan *clamd.ScanResult, errCh chan error) {
+		response, err := c.ScanFile(path)
+		if err != nil {
+			errCh <- err
+			return
+		}
+
+		responseCh <- response
+	}(responseCh, errCh)
+
 	select {
-	case s := <-response:
-		w.Write([]byte(fmt.Sprintf("%v\n", s.Status)))
+	case err := <-errCh:
+		return "", err
+	case response := <-responseCh:
+		st := <-response
+		return st.Status, nil
 	case <-time.After(time.Second * 60):
-		abort <- true
+		return "", errors.New("clamav scan timeout")
 	}
 }
--- a/server/handlers.go
+++ b/server/handlers.go
@@ -27,13 +27,12 @@ THE SOFTWARE.
 package server

 import (
-	// _ "transfer.sh/app/handlers"
-	// _ "transfer.sh/app/utils"
-
 	"archive/tar"
 	"archive/zip"
 	"bytes"
 	"compress/gzip"
+	"context"
+	"encoding/base64"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -42,6 +41,7 @@ import (
 	"io"
 	"io/ioutil"
 	"mime"
+	"net"
 	"net/http"
 	"net/url"
 	"os"
@@ -53,15 +53,10 @@ import (
 	text_template "text/template"
 	"time"

-	blackfriday "github.com/russross/blackfriday/v2"
-
-	"net"
-
-	"encoding/base64"
-
 	web "github.com/dutchcoders/transfer.sh-web"
 	"github.com/gorilla/mux"
 	"github.com/microcosm-cc/bluemonday"
+	blackfriday "github.com/russross/blackfriday/v2"
 	"github.com/skip2/go-qrcode"
 )

@@ -94,7 +89,7 @@ func initHTMLTemplates() *html_template.Template {
 }

 func healthHandler(w http.ResponseWriter, r *http.Request) {
-	fmt.Fprintf(w, "Approaching Neutral Zone, all systems normal and functioning.")
+	_, _ = w.Write([]byte("Approaching Neutral Zone, all systems normal and functioning."))
 }

 func canContainsXSS(contentType string) bool {
@@ -125,7 +120,7 @@ func (s *Server) previewHandler(w http.ResponseWriter, r *http.Request) {
 	token := vars["token"]
 	filename := vars["filename"]

-	metadata, err := s.checkMetadata(token, filename, false)
+	metadata, err := s.checkMetadata(r.Context(), token, filename, false)

 	if err != nil {
 		s.logger.Printf("Error metadata: %s", err.Error())
@@ -134,7 +129,7 @@ func (s *Server) previewHandler(w http.ResponseWriter, r *http.Request) {
 	}

 	contentType := metadata.ContentType
-	contentLength, err := s.storage.Head(token, filename)
+	contentLength, err := s.storage.Head(r.Context(), token, filename)
 	if err != nil {
 		http.Error(w, http.StatusText(404), 404)
 		return
@@ -154,7 +149,7 @@ func (s *Server) previewHandler(w http.ResponseWriter, r *http.Request) {
 		templatePath = "download.markdown.html"

 		var reader io.ReadCloser
-		if reader, _, err = s.storage.Get(token, filename); err != nil {
+		if reader, _, err = s.storage.Get(r.Context(), token, filename); err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
@@ -253,6 +248,7 @@ func (s *Server) viewHandler(w http.ResponseWriter, r *http.Request) {
 	data := struct {
 		Hostname      string
 		WebAddress    string
+		EmailContact  string
 		GAKey         string
 		UserVoiceKey  string
 		PurgeTime     string
@@ -262,6 +258,7 @@ func (s *Server) viewHandler(w http.ResponseWriter, r *http.Request) {
 	}{
 		hostname,
 		webAddress,
+		s.emailContact,
 		s.gaKey,
 		s.userVoiceKey,
 		purgeTime,
@@ -294,7 +291,7 @@ func sanitize(fileName string) string {
 func (s *Server) postHandler(w http.ResponseWriter, r *http.Request) {
 	if err := r.ParseMultipartForm(_24K); nil != err {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, "Error occurred copying to output stream", 500)
+		http.Error(w, "Error occurred copying to output stream", http.StatusInternalServerError)
 		return
 	}

@@ -302,6 +299,8 @@ func (s *Server) postHandler(w http.ResponseWriter, r *http.Request) {

 	w.Header().Set("Content-Type", "text/plain")

+	responseBody := ""
+
 	for _, fheaders := range r.MultipartForm.File {
 		for _, fheader := range fheaders {
 			filename := sanitize(fheader.Filename)
@@ -312,88 +311,91 @@ func (s *Server) postHandler(w http.ResponseWriter, r *http.Request) {

 			if f, err = fheader.Open(); err != nil {
 				s.logger.Printf("%s", err.Error())
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}

-			var b bytes.Buffer
+			file, err := ioutil.TempFile(s.tempPath, "transfer-")
+			defer s.cleanTmpFile(file)

-			n, err := io.CopyN(&b, f, _24K+1)
-			if err != nil && err != io.EOF {
+			if err != nil {
 				s.logger.Printf("%s", err.Error())
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}

-			var file *os.File
-			var reader io.Reader
-
-			if n > _24K {
-				file, err = ioutil.TempFile(s.tempPath, "transfer-")
-				if err != nil {
-					s.logger.Fatal(err)
-				}
-
-				n, err = io.Copy(file, io.MultiReader(&b, f))
-				if err != nil {
-					s.cleanTmpFile(file)
-
-					s.logger.Printf("%s", err.Error())
-					http.Error(w, err.Error(), 500)
-					return
-				}
-
-				reader, err = os.Open(file.Name())
-				if err != nil {
-					s.logger.Printf("%s", err.Error())
-					http.Error(w, err.Error(), 500)
-					return
-				}
-			} else {
-				reader = bytes.NewReader(b.Bytes())
+			n, err := io.Copy(file, f)
+			if err != nil {
+				s.logger.Printf("%s", err.Error())
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
 			}

 			contentLength := n

+			_, err = file.Seek(0, io.SeekStart)
+			if err != nil {
+				s.logger.Printf("%s", err.Error())
+				return
+			}
+
 			if s.maxUploadSize > 0 && contentLength > s.maxUploadSize {
 				s.logger.Print("Entity too large")
 				http.Error(w, http.StatusText(http.StatusRequestEntityTooLarge), http.StatusRequestEntityTooLarge)
 				return
 			}

+			if s.performClamavPrescan {
+				status, err := s.performScan(file.Name())
+				if err != nil {
+					s.logger.Printf("%s", err.Error())
+					http.Error(w, "Could not perform prescan", http.StatusInternalServerError)
+					return
+				}
+
+				if status != clamavScanStatusOK {
+					s.logger.Printf("prescan positive: %s", status)
+					http.Error(w, "Clamav prescan found a virus", http.StatusPreconditionFailed)
+					return
+				}
+			}
+
 			metadata := metadataForRequest(contentType, s.randomTokenLength, r)

 			buffer := &bytes.Buffer{}
 			if err := json.NewEncoder(buffer).Encode(metadata); err != nil {
 				s.logger.Printf("%s", err.Error())
-				http.Error(w, errors.New("Could not encode metadata").Error(), 500)
+				http.Error(w, "Could not encode metadata", http.StatusInternalServerError)

-				s.cleanTmpFile(file)
 				return
-			} else if err := s.storage.Put(token, fmt.Sprintf("%s.metadata", filename), buffer, "text/json", uint64(buffer.Len())); err != nil {
+			} else if err := s.storage.Put(r.Context(), token, fmt.Sprintf("%s.metadata", filename), buffer, "text/json", uint64(buffer.Len())); err != nil {
 				s.logger.Printf("%s", err.Error())
-				http.Error(w, errors.New("Could not save metadata").Error(), 500)
+				http.Error(w, "Could not save metadata", http.StatusInternalServerError)

-				s.cleanTmpFile(file)
 				return
 			}

 			s.logger.Printf("Uploading %s %s %d %s", token, filename, contentLength, contentType)

-			if err = s.storage.Put(token, filename, reader, contentType, uint64(contentLength)); err != nil {
+			if err = s.storage.Put(r.Context(), token, filename, file, contentType, uint64(contentLength)); err != nil {
 				s.logger.Printf("Backend storage error: %s", err.Error())
-				http.Error(w, err.Error(), 500)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return

 			}

 			filename = url.PathEscape(filename)
 			relativeURL, _ := url.Parse(path.Join(s.proxyPath, token, filename))
-			fmt.Fprintln(w, getURL(r, s.proxyPort).ResolveReference(relativeURL).String())
-
-			s.cleanTmpFile(file)
+			deleteURL, _ := url.Parse(path.Join(s.proxyPath, token, filename, metadata.DeletionToken))
+			w.Header().Add("X-Url-Delete", resolveURL(r, deleteURL, s.proxyPort))
+			responseBody += fmt.Sprintln(getURL(r, s.proxyPort).ResolveReference(relativeURL).String())
 		}
 	}
+	_, err := w.Write([]byte(responseBody))
+	if err != nil {
+		s.logger.Printf("%s", err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+	}
 }

 func (s *Server) cleanTmpFile(f *os.File) {
@@ -456,57 +458,35 @@ func (s *Server) putHandler(w http.ResponseWriter, r *http.Request) {

 	contentLength := r.ContentLength

-	var reader io.Reader
+	defer CloseCheck(r.Body.Close)

-	reader = r.Body
+	file, err := ioutil.TempFile(s.tempPath, "transfer-")
+	defer s.cleanTmpFile(file)
+	if err != nil {
+		s.logger.Printf("%s", err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}

-	defer r.Body.Close()
+	// queue file to disk, because s3 needs content length
+	// and clamav prescan scans a file
+	n, err := io.Copy(file, r.Body)
+	if err != nil {
+		s.logger.Printf("%s", err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)

-	if contentLength == -1 {
-		// queue file to disk, because s3 needs content length
-		var err error
-		var f io.Reader
+		return
+	}

-		f = reader
+	_, err = file.Seek(0, io.SeekStart)
+	if err != nil {
+		s.logger.Printf("%s", err.Error())
+		http.Error(w, "Cannot reset cache file", http.StatusInternalServerError)

-		var b bytes.Buffer
-
-		n, err := io.CopyN(&b, f, _24K+1)
-		if err != nil && err != io.EOF {
-			s.logger.Printf("Error putting new file: %s", err.Error())
-			http.Error(w, err.Error(), 500)
-			return
-		}
-
-		var file *os.File
-
-		if n > _24K {
-			file, err = ioutil.TempFile(s.tempPath, "transfer-")
-			if err != nil {
-				s.logger.Printf("%s", err.Error())
-				http.Error(w, err.Error(), 500)
-				return
-			}
-
-			defer s.cleanTmpFile(file)
-
-			n, err = io.Copy(file, io.MultiReader(&b, f))
-			if err != nil {
-				s.logger.Printf("%s", err.Error())
-				http.Error(w, err.Error(), 500)
-				return
-			}
-
-			reader, err = os.Open(file.Name())
-			if err != nil {
-				s.logger.Printf("%s", err.Error())
-				http.Error(w, err.Error(), 500)
-				return
-			}
-		} else {
-			reader = bytes.NewReader(b.Bytes())
-		}
+		return
+	}

+	if contentLength < 1 {
 		contentLength = n
 	}

@@ -518,10 +498,25 @@ func (s *Server) putHandler(w http.ResponseWriter, r *http.Request) {

 	if contentLength == 0 {
 		s.logger.Print("Empty content-length")
-		http.Error(w, errors.New("Could not upload empty file").Error(), 400)
+		http.Error(w, "Could not upload empty file", http.StatusBadRequest)
 		return
 	}

+	if s.performClamavPrescan {
+		status, err := s.performScan(file.Name())
+		if err != nil {
+			s.logger.Printf("%s", err.Error())
+			http.Error(w, "Could not perform prescan", http.StatusInternalServerError)
+			return
+		}
+
+		if status != clamavScanStatusOK {
+			s.logger.Printf("prescan positive: %s", status)
+			http.Error(w, "Clamav prescan found a virus", http.StatusPreconditionFailed)
+			return
+		}
+	}
+
 	contentType := mime.TypeByExtension(filepath.Ext(vars["filename"]))

 	token := token(s.randomTokenLength)
@@ -531,25 +526,23 @@ func (s *Server) putHandler(w http.ResponseWriter, r *http.Request) {
 	buffer := &bytes.Buffer{}
 	if err := json.NewEncoder(buffer).Encode(metadata); err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, errors.New("Could not encode metadata").Error(), 500)
+		http.Error(w, "Could not encode metadata", http.StatusInternalServerError)
 		return
 	} else if !metadata.MaxDate.IsZero() && time.Now().After(metadata.MaxDate) {
 		s.logger.Print("Invalid MaxDate")
-		http.Error(w, errors.New("Invalid MaxDate, make sure Max-Days is smaller than 290 years").Error(), 400)
+		http.Error(w, "Invalid MaxDate, make sure Max-Days is smaller than 290 years", http.StatusBadRequest)
 		return
-	} else if err := s.storage.Put(token, fmt.Sprintf("%s.metadata", filename), buffer, "text/json", uint64(buffer.Len())); err != nil {
+	} else if err := s.storage.Put(r.Context(), token, fmt.Sprintf("%s.metadata", filename), buffer, "text/json", uint64(buffer.Len())); err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, errors.New("Could not save metadata").Error(), 500)
+		http.Error(w, "Could not save metadata", http.StatusInternalServerError)
 		return
 	}

 	s.logger.Printf("Uploading %s %s %d %s", token, filename, contentLength, contentType)

-	var err error
-
-	if err = s.storage.Put(token, filename, reader, contentType, uint64(contentLength)); err != nil {
+	if err = s.storage.Put(r.Context(), token, filename, file, contentType, uint64(contentLength)); err != nil {
 		s.logger.Printf("Error putting new file: %s", err.Error())
-		http.Error(w, errors.New("Could not save file").Error(), 500)
+		http.Error(w, "Could not save file", http.StatusInternalServerError)
 		return
 	}

@@ -563,7 +556,7 @@ func (s *Server) putHandler(w http.ResponseWriter, r *http.Request) {

 	w.Header().Set("X-Url-Delete", resolveURL(r, deleteURL, s.proxyPort))

-	fmt.Fprint(w, resolveURL(r, relativeURL, s.proxyPort))
+	_, _ = w.Write([]byte(resolveURL(r, relativeURL, s.proxyPort)))
 }

 func resolveURL(r *http.Request, u *url.URL, proxyPort string) string {
@@ -573,13 +566,9 @@ func resolveURL(r *http.Request, u *url.URL, proxyPort string) string {
 }

 func resolveKey(key, proxyPath string) string {
-	if strings.HasPrefix(key, "/") {
-		key = key[1:]
-	}
+	key = strings.TrimPrefix(key, "/")

-	if strings.HasPrefix(key, proxyPath) {
-		key = key[len(proxyPath):]
-	}
+	key = strings.TrimPrefix(key, proxyPath)

 	key = strings.Replace(key, "\\", "/", -1)

@@ -587,18 +576,18 @@ func resolveKey(key, proxyPath string) string {
 }

 func resolveWebAddress(r *http.Request, proxyPath string, proxyPort string) string {
-	url := getURL(r, proxyPort)
+	rUrl := getURL(r, proxyPort)

 	var webAddress string

 	if len(proxyPath) == 0 {
 		webAddress = fmt.Sprintf("%s://%s/",
-			url.ResolveReference(url).Scheme,
-			url.ResolveReference(url).Host)
+			rUrl.ResolveReference(rUrl).Scheme,
+			rUrl.ResolveReference(rUrl).Host)
 	} else {
 		webAddress = fmt.Sprintf("%s://%s/%s",
-			url.ResolveReference(url).Scheme,
-			url.ResolveReference(url).Host,
+			rUrl.ResolveReference(rUrl).Scheme,
+			rUrl.ResolveReference(rUrl).Host,
 			proxyPath)
 	}

@@ -658,7 +647,7 @@ func (metadata metadata) remainingLimitHeaderValues() (remainingDownloads, remai
 	if metadata.MaxDate.IsZero() {
 		remainingDays = "n/a"
 	} else {
-		timeDifference := metadata.MaxDate.Sub(time.Now())
+		timeDifference := time.Until(metadata.MaxDate)
 		remainingDays = strconv.Itoa(int(timeDifference.Hours()/24) + 1)
 	}

@@ -677,8 +666,6 @@ func (s *Server) lock(token, filename string) {
 	lock, _ := s.locks.LoadOrStore(key, &sync.Mutex{})

 	lock.(*sync.Mutex).Lock()
-
-	return
 }

 func (s *Server) unlock(token, filename string) {
@@ -689,19 +676,19 @@ func (s *Server) unlock(token, filename string) {
 	lock.(*sync.Mutex).Unlock()
 }

-func (s *Server) checkMetadata(token, filename string, increaseDownload bool) (metadata, error) {
+func (s *Server) checkMetadata(ctx context.Context, token, filename string, increaseDownload bool) (metadata, error) {
 	s.lock(token, filename)
 	defer s.unlock(token, filename)

 	var metadata metadata

-	r, _, err := s.storage.Get(token, fmt.Sprintf("%s.metadata", filename))
+	r, _, err := s.storage.Get(ctx, token, fmt.Sprintf("%s.metadata", filename))
+	defer CloseCheck(r.Close)
+
 	if err != nil {
 		return metadata, err
 	}

-	defer r.Close()
-
 	if err := json.NewDecoder(r).Decode(&metadata); err != nil {
 		return metadata, err
 	} else if metadata.MaxDownloads != -1 && metadata.Downloads >= metadata.MaxDownloads {
@@ -716,30 +703,30 @@ func (s *Server) checkMetadata(token, filename string, increaseDownload bool) (m

 		buffer := &bytes.Buffer{}
 		if err := json.NewEncoder(buffer).Encode(metadata); err != nil {
-			return metadata, errors.New("Could not encode metadata")
-		} else if err := s.storage.Put(token, fmt.Sprintf("%s.metadata", filename), buffer, "text/json", uint64(buffer.Len())); err != nil {
-			return metadata, errors.New("Could not save metadata")
+			return metadata, errors.New("could not encode metadata")
+		} else if err := s.storage.Put(ctx, token, fmt.Sprintf("%s.metadata", filename), buffer, "text/json", uint64(buffer.Len())); err != nil {
+			return metadata, errors.New("could not save metadata")
 		}
 	}

 	return metadata, nil
 }

-func (s *Server) checkDeletionToken(deletionToken, token, filename string) error {
+func (s *Server) checkDeletionToken(ctx context.Context, deletionToken, token, filename string) error {
 	s.lock(token, filename)
 	defer s.unlock(token, filename)

 	var metadata metadata

-	r, _, err := s.storage.Get(token, fmt.Sprintf("%s.metadata", filename))
+	r, _, err := s.storage.Get(ctx, token, fmt.Sprintf("%s.metadata", filename))
+	defer CloseCheck(r.Close)
+
 	if s.storage.IsNotExist(err) {
 		return errors.New("metadata doesn't exist")
 	} else if err != nil {
 		return err
 	}

-	defer r.Close()
-
 	if err := json.NewDecoder(r).Decode(&metadata); err != nil {
 		return err
 	} else if metadata.DeletionToken != deletionToken {
@@ -753,9 +740,9 @@ func (s *Server) purgeHandler() {
 	ticker := time.NewTicker(s.purgeInterval)
 	go func() {
 		for {
-			select {
-			case <-ticker.C:
-				err := s.storage.Purge(s.purgeDays)
+			<-ticker.C
+			err := s.storage.Purge(context.TODO(), s.purgeDays)
+			if err != nil {
 				s.logger.Printf("error cleaning up expired files: %v", err)
 			}
 		}
@@ -769,19 +756,19 @@ func (s *Server) deleteHandler(w http.ResponseWriter, r *http.Request) {
 	filename := vars["filename"]
 	deletionToken := vars["deletionToken"]

-	if err := s.checkDeletionToken(deletionToken, token, filename); err != nil {
+	if err := s.checkDeletionToken(r.Context(), deletionToken, token, filename); err != nil {
 		s.logger.Printf("Error metadata: %s", err.Error())
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
 		return
 	}

-	err := s.storage.Delete(token, filename)
+	err := s.storage.Delete(r.Context(), token, filename)
 	if s.storage.IsNotExist(err) {
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
 		return
 	} else if err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, "Could not delete file.", 500)
+		http.Error(w, "Could not delete file.", http.StatusInternalServerError)
 		return
 	}
 }
@@ -794,8 +781,7 @@ func (s *Server) zipHandler(w http.ResponseWriter, r *http.Request) {
 	zipfilename := fmt.Sprintf("transfersh-%d.zip", uint16(time.Now().UnixNano()))

 	w.Header().Set("Content-Type", "application/zip")
-	w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", zipfilename))
-	w.Header().Set("Connection", "close")
+	commonHeader(w, zipfilename)

 	zw := zip.NewWriter(w)

@@ -805,12 +791,13 @@ func (s *Server) zipHandler(w http.ResponseWriter, r *http.Request) {
 		token := strings.Split(key, "/")[0]
 		filename := sanitize(strings.Split(key, "/")[1])

-		if _, err := s.checkMetadata(token, filename, true); err != nil {
+		if _, err := s.checkMetadata(r.Context(), token, filename, true); err != nil {
 			s.logger.Printf("Error metadata: %s", err.Error())
 			continue
 		}

-		reader, _, err := s.storage.Get(token, filename)
+		reader, _, err := s.storage.Get(r.Context(), token, filename)
+		defer CloseCheck(reader.Close)

 		if err != nil {
 			if s.storage.IsNotExist(err) {
@@ -819,37 +806,35 @@ func (s *Server) zipHandler(w http.ResponseWriter, r *http.Request) {
 			}

 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Could not retrieve file.", 500)
+			http.Error(w, "Could not retrieve file.", http.StatusInternalServerError)
 			return
 		}

-		defer reader.Close()
-
 		header := &zip.FileHeader{
-			Name:         strings.Split(key, "/")[1],
-			Method:       zip.Store,
-			ModifiedTime: uint16(time.Now().UnixNano()),
-			ModifiedDate: uint16(time.Now().UnixNano()),
+			Name:   strings.Split(key, "/")[1],
+			Method: zip.Store,
+
+			Modified: time.Now().UTC(),
 		}

 		fw, err := zw.CreateHeader(header)

 		if err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Internal server error.", 500)
+			http.Error(w, "Internal server error.", http.StatusInternalServerError)
 			return
 		}

 		if _, err = io.Copy(fw, reader); err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Internal server error.", 500)
+			http.Error(w, "Internal server error.", http.StatusInternalServerError)
 			return
 		}
 	}

 	if err := zw.Close(); err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, "Internal server error.", 500)
+		http.Error(w, "Internal server error.", http.StatusInternalServerError)
 		return
 	}
 }
@@ -862,14 +847,13 @@ func (s *Server) tarGzHandler(w http.ResponseWriter, r *http.Request) {
 	tarfilename := fmt.Sprintf("transfersh-%d.tar.gz", uint16(time.Now().UnixNano()))

 	w.Header().Set("Content-Type", "application/x-gzip")
-	w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", tarfilename))
-	w.Header().Set("Connection", "close")
+	commonHeader(w, tarfilename)

-	os := gzip.NewWriter(w)
-	defer os.Close()
+	gw := gzip.NewWriter(w)
+	defer CloseCheck(gw.Close)

-	zw := tar.NewWriter(os)
-	defer zw.Close()
+	zw := tar.NewWriter(gw)
+	defer CloseCheck(zw.Close)

 	for _, key := range strings.Split(files, ",") {
 		key = resolveKey(key, s.proxyPath)
@@ -877,12 +861,14 @@ func (s *Server) tarGzHandler(w http.ResponseWriter, r *http.Request) {
 		token := strings.Split(key, "/")[0]
 		filename := sanitize(strings.Split(key, "/")[1])

-		if _, err := s.checkMetadata(token, filename, true); err != nil {
+		if _, err := s.checkMetadata(r.Context(), token, filename, true); err != nil {
 			s.logger.Printf("Error metadata: %s", err.Error())
 			continue
 		}

-		reader, contentLength, err := s.storage.Get(token, filename)
+		reader, contentLength, err := s.storage.Get(r.Context(), token, filename)
+		defer CloseCheck(reader.Close)
+
 		if err != nil {
 			if s.storage.IsNotExist(err) {
 				http.Error(w, "File not found", 404)
@@ -890,12 +876,10 @@ func (s *Server) tarGzHandler(w http.ResponseWriter, r *http.Request) {
 			}

 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Could not retrieve file.", 500)
+			http.Error(w, "Could not retrieve file.", http.StatusInternalServerError)
 			return
 		}

-		defer reader.Close()
-
 		header := &tar.Header{
 			Name: strings.Split(key, "/")[1],
 			Size: int64(contentLength),
@@ -904,13 +888,13 @@ func (s *Server) tarGzHandler(w http.ResponseWriter, r *http.Request) {
 		err = zw.WriteHeader(header)
 		if err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Internal server error.", 500)
+			http.Error(w, "Internal server error.", http.StatusInternalServerError)
 			return
 		}

 		if _, err = io.Copy(zw, reader); err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Internal server error.", 500)
+			http.Error(w, "Internal server error.", http.StatusInternalServerError)
 			return
 		}
 	}
@@ -924,11 +908,10 @@ func (s *Server) tarHandler(w http.ResponseWriter, r *http.Request) {
 	tarfilename := fmt.Sprintf("transfersh-%d.tar", uint16(time.Now().UnixNano()))

 	w.Header().Set("Content-Type", "application/x-tar")
-	w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", tarfilename))
-	w.Header().Set("Connection", "close")
+	commonHeader(w, tarfilename)

 	zw := tar.NewWriter(w)
-	defer zw.Close()
+	defer CloseCheck(zw.Close)

 	for _, key := range strings.Split(files, ",") {
 		key = resolveKey(key, s.proxyPath)
@@ -936,12 +919,14 @@ func (s *Server) tarHandler(w http.ResponseWriter, r *http.Request) {
 		token := strings.Split(key, "/")[0]
 		filename := strings.Split(key, "/")[1]

-		if _, err := s.checkMetadata(token, filename, true); err != nil {
+		if _, err := s.checkMetadata(r.Context(), token, filename, true); err != nil {
 			s.logger.Printf("Error metadata: %s", err.Error())
 			continue
 		}

-		reader, contentLength, err := s.storage.Get(token, filename)
+		reader, contentLength, err := s.storage.Get(r.Context(), token, filename)
+		defer CloseCheck(reader.Close)
+
 		if err != nil {
 			if s.storage.IsNotExist(err) {
 				http.Error(w, "File not found", 404)
@@ -949,12 +934,10 @@ func (s *Server) tarHandler(w http.ResponseWriter, r *http.Request) {
 			}

 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Could not retrieve file.", 500)
+			http.Error(w, "Could not retrieve file.", http.StatusInternalServerError)
 			return
 		}

-		defer reader.Close()
-
 		header := &tar.Header{
 			Name: strings.Split(key, "/")[1],
 			Size: int64(contentLength),
@@ -963,13 +946,13 @@ func (s *Server) tarHandler(w http.ResponseWriter, r *http.Request) {
 		err = zw.WriteHeader(header)
 		if err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Internal server error.", 500)
+			http.Error(w, "Internal server error.", http.StatusInternalServerError)
 			return
 		}

 		if _, err = io.Copy(zw, reader); err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Internal server error.", 500)
+			http.Error(w, "Internal server error.", http.StatusInternalServerError)
 			return
 		}
 	}
@@ -981,7 +964,7 @@ func (s *Server) headHandler(w http.ResponseWriter, r *http.Request) {
 	token := vars["token"]
 	filename := vars["filename"]

-	metadata, err := s.checkMetadata(token, filename, false)
+	metadata, err := s.checkMetadata(r.Context(), token, filename, false)

 	if err != nil {
 		s.logger.Printf("Error metadata: %s", err.Error())
@@ -990,13 +973,13 @@ func (s *Server) headHandler(w http.ResponseWriter, r *http.Request) {
 	}

 	contentType := metadata.ContentType
-	contentLength, err := s.storage.Head(token, filename)
+	contentLength, err := s.storage.Head(r.Context(), token, filename)
 	if s.storage.IsNotExist(err) {
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
 		return
 	} else if err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, "Could not retrieve file.", 500)
+		http.Error(w, "Could not retrieve file.", http.StatusInternalServerError)
 		return
 	}

@@ -1016,7 +999,7 @@ func (s *Server) getHandler(w http.ResponseWriter, r *http.Request) {
 	token := vars["token"]
 	filename := vars["filename"]

-	metadata, err := s.checkMetadata(token, filename, true)
+	metadata, err := s.checkMetadata(r.Context(), token, filename, true)

 	if err != nil {
 		s.logger.Printf("Error metadata: %s", err.Error())
@@ -1025,18 +1008,18 @@ func (s *Server) getHandler(w http.ResponseWriter, r *http.Request) {
 	}

 	contentType := metadata.ContentType
-	reader, contentLength, err := s.storage.Get(token, filename)
+	reader, contentLength, err := s.storage.Get(r.Context(), token, filename)
+	defer CloseCheck(reader.Close)
+
 	if s.storage.IsNotExist(err) {
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
 		return
 	} else if err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, "Could not retrieve file.", 500)
+		http.Error(w, "Could not retrieve file.", http.StatusInternalServerError)
 		return
 	}

-	defer reader.Close()
-
 	var disposition string

 	if action == "inline" {
@@ -1051,6 +1034,7 @@ func (s *Server) getHandler(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Length", strconv.FormatUint(contentLength, 10))
 	w.Header().Set("Content-Disposition", fmt.Sprintf("%s; filename=\"%s\"", disposition, filename))
 	w.Header().Set("Connection", "keep-alive")
+	w.Header().Set("Cache-Control", "no-store")
 	w.Header().Set("X-Remaining-Downloads", remainingDownloads)
 	w.Header().Set("X-Remaining-Days", remainingDays)

@@ -1060,18 +1044,18 @@ func (s *Server) getHandler(w http.ResponseWriter, r *http.Request) {

 	if w.Header().Get("Range") != "" || strings.HasPrefix(metadata.ContentType, "video") || strings.HasPrefix(metadata.ContentType, "audio") {
 		file, err := ioutil.TempFile(s.tempPath, "range-")
+		defer s.cleanTmpFile(file)
+
 		if err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Error occurred copying to output stream", 500)
+			http.Error(w, "Error occurred copying to output stream", http.StatusInternalServerError)
 			return
 		}

-		defer s.cleanTmpFile(file)
-
 		_, err = io.Copy(file, reader)
 		if err != nil {
 			s.logger.Printf("%s", err.Error())
-			http.Error(w, "Error occurred copying to output stream", 500)
+			http.Error(w, "Error occurred copying to output stream", http.StatusInternalServerError)
 			return
 		}

@@ -1081,11 +1065,15 @@ func (s *Server) getHandler(w http.ResponseWriter, r *http.Request) {

 	if _, err = io.Copy(w, reader); err != nil {
 		s.logger.Printf("%s", err.Error())
-		http.Error(w, "Error occurred copying to output stream", 500)
+		http.Error(w, "Error occurred copying to output stream", http.StatusInternalServerError)
 		return
 	}
+}

-	return
+func commonHeader(w http.ResponseWriter, filename string) {
+	w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
+	w.Header().Set("Connection", "close")
+	w.Header().Set("Cache-Control", "no-store")
 }

 // RedirectHandler handles redirect
@@ -1140,7 +1128,6 @@ func ipFilterHandler(h http.Handler, ipFilterOptions *IPFilterOptions) http.Hand
 		} else {
 			WrapIPFilter(h, *ipFilterOptions).ServeHTTP(w, r)
 		}
-		return
 	}
 }

@@ -1154,13 +1141,13 @@ func (s *Server) basicAuthHandler(h http.Handler) http.HandlerFunc {
 		w.Header().Set("WWW-Authenticate", "Basic realm=\"Restricted\"")

 		username, password, authOK := r.BasicAuth()
-		if authOK == false {
-			http.Error(w, "Not authorized", 401)
+		if !authOK {
+			http.Error(w, "Not authorized", http.StatusUnauthorized)
 			return
 		}

 		if username != s.AuthUser || password != s.AuthPass {
-			http.Error(w, "Not authorized", 401)
+			http.Error(w, "Not authorized", http.StatusUnauthorized)
 			return
 		}

--- a/server/server.go
+++ b/server/server.go
@@ -25,39 +25,34 @@ THE SOFTWARE.
 package server

 import (
+	"context"
 	crypto_rand "crypto/rand"
+	"crypto/tls"
 	"encoding/binary"
 	"errors"
-	gorillaHandlers "github.com/gorilla/handlers"
 	"log"
 	"math/rand"
 	"mime"
 	"net/http"
+	_ "net/http/pprof"
 	"net/url"
 	"os"
 	"os/signal"
+	"path/filepath"
 	"strings"
 	"sync"
 	"syscall"
 	"time"

-	context "golang.org/x/net/context"
-
 	"github.com/PuerkitoBio/ghost/handlers"
 	"github.com/VojtechVitek/ratelimit"
 	"github.com/VojtechVitek/ratelimit/memory"
+	gorillaHandlers "github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
-
-	// import pprof
-	_ "net/http/pprof"
-
-	"crypto/tls"
+	"golang.org/x/crypto/acme/autocert"

 	web "github.com/dutchcoders/transfer.sh-web"
 	assetfs "github.com/elazarl/go-bindata-assetfs"
-
-	autocert "golang.org/x/crypto/acme/autocert"
-	"path/filepath"
 )

 // parse request with maximum memory of _24Kilobits
@@ -76,6 +71,13 @@ func ClamavHost(s string) OptionFn {
 	}
 }

+// PerformClamavPrescan enables clamav prescan on upload
+func PerformClamavPrescan(b bool) OptionFn {
+	return func(srvr *Server) {
+		srvr.performClamavPrescan = b
+	}
+}
+
 // VirustotalKey sets virus total key
 func VirustotalKey(s string) OptionFn {
 	return func(srvr *Server) {
@@ -99,6 +101,13 @@ func CorsDomains(s string) OptionFn {

 }

+// EmailContact sets email contact
+func EmailContact(emailContact string) OptionFn {
+	return func(srvr *Server) {
+		srvr.emailContact = emailContact
+	}
+}
+
 // GoogleAnalytics sets GA key
 func GoogleAnalytics(gaKey string) OptionFn {
 	return func(srvr *Server) {
@@ -331,14 +340,16 @@ type Server struct {

 	ipFilterOptions *IPFilterOptions

-	VirusTotalKey    string
-	ClamAVDaemonHost string
+	VirusTotalKey        string
+	ClamAVDaemonHost     string
+	performClamavPrescan bool

 	tempPath string

 	webPath      string
 	proxyPath    string
 	proxyPort    string
+	emailContact string
 	gaKey        string
 	userVoiceKey string

@@ -385,7 +396,7 @@ func (s *Server) Run() {
 		go func() {
 			s.logger.Println("Profiled listening at: :6060")

-			http.ListenAndServe(":6060", nil)
+			_ = http.ListenAndServe(":6060", nil)
 		}()
 	}

@@ -416,8 +427,18 @@ func (s *Server) Run() {
 				s.logger.Panicf("Unable to parse: path=%s, err=%s", path, err)
 			}

-			htmlTemplates.New(stripPrefix(path)).Parse(string(bytes))
-			textTemplates.New(stripPrefix(path)).Parse(string(bytes))
+			if strings.HasSuffix(path, ".html") {
+				_, err = htmlTemplates.New(stripPrefix(path)).Parse(string(bytes))
+				if err != nil {
+					s.logger.Println("Unable to parse html template", err)
+				}
+			}
+			if strings.HasSuffix(path, ".txt") {
+				_, err = textTemplates.New(stripPrefix(path)).Parse(string(bytes))
+				if err != nil {
+					s.logger.Println("Unable to parse text template", err)
+				}
+			}
 		}
 	}

@@ -485,7 +506,7 @@ func (s *Server) Run() {

 	r.NotFoundHandler = http.HandlerFunc(s.notFoundHandler)

-	mime.AddExtensionType(".md", "text/x-markdown")
+	_ = mime.AddExtensionType(".md", "text/x-markdown")

 	s.logger.Printf("Transfer.sh server started.\nusing temp folder: %s\nusing storage provider: %s", s.tempPath, s.storage.Type())

@@ -524,7 +545,7 @@ func (s *Server) Run() {
 		s.logger.Printf("listening on port: %v\n", s.ListenerString)

 		go func() {
-			srvr.ListenAndServe()
+			_ = srvr.ListenAndServe()
 		}()
 	}

--- a/server/storage.go
+++ b/server/storage.go
@@ -1,19 +1,10 @@
 package server

 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/aws/aws-sdk-go/aws"
-	"github.com/aws/aws-sdk-go/aws/awserr"
-	"github.com/aws/aws-sdk-go/aws/session"
-	"github.com/aws/aws-sdk-go/service/s3"
-	"github.com/aws/aws-sdk-go/service/s3/s3manager"
-	"golang.org/x/net/context"
-	"golang.org/x/oauth2"
-	"golang.org/x/oauth2/google"
-	"google.golang.org/api/drive/v3"
-	"google.golang.org/api/googleapi"
 	"io"
 	"io/ioutil"
 	"log"
@@ -23,6 +14,17 @@ import (
 	"strings"
 	"time"

+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awserr"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"github.com/aws/aws-sdk-go/service/s3/s3manager"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/google"
+	"google.golang.org/api/drive/v3"
+	"google.golang.org/api/googleapi"
+
+	"storj.io/common/fpath"
 	"storj.io/common/storj"
 	"storj.io/uplink"
 )
@@ -30,17 +32,17 @@ import (
 // Storage is the interface for storage operation
 type Storage interface {
 	// Get retrieves a file from storage
-	Get(token string, filename string) (reader io.ReadCloser, contentLength uint64, err error)
+	Get(ctx context.Context, token string, filename string) (reader io.ReadCloser, contentLength uint64, err error)
 	// Head retrieves content length of a file from storage
-	Head(token string, filename string) (contentLength uint64, err error)
+	Head(ctx context.Context, token string, filename string) (contentLength uint64, err error)
 	// Put saves a file on storage
-	Put(token string, filename string, reader io.Reader, contentType string, contentLength uint64) error
+	Put(ctx context.Context, token string, filename string, reader io.Reader, contentType string, contentLength uint64) error
 	// Delete removes a file from storage
-	Delete(token string, filename string) error
+	Delete(ctx context.Context, token string, filename string) error
 	// IsNotExist indicates if a file doesn't exist on storage
 	IsNotExist(err error) bool
 	// Purge cleans up the storage
-	Purge(days time.Duration) error
+	Purge(ctx context.Context, days time.Duration) error

 	// Type returns the storage type
 	Type() string
@@ -64,7 +66,7 @@ func (s *LocalStorage) Type() string {
 }

 // Head retrieves content length of a file from storage
-func (s *LocalStorage) Head(token string, filename string) (contentLength uint64, err error) {
+func (s *LocalStorage) Head(ctx context.Context, token string, filename string) (contentLength uint64, err error) {
 	path := filepath.Join(s.basedir, token, filename)

 	var fi os.FileInfo
@@ -78,7 +80,7 @@ func (s *LocalStorage) Head(token string, filename string) (contentLength uint64
 }

 // Get retrieves a file from storage
-func (s *LocalStorage) Get(token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
+func (s *LocalStorage) Get(ctx context.Context, token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
 	path := filepath.Join(s.basedir, token, filename)

 	// content type , content length
@@ -97,9 +99,9 @@ func (s *LocalStorage) Get(token string, filename string) (reader io.ReadCloser,
 }

 // Delete removes a file from storage
-func (s *LocalStorage) Delete(token string, filename string) (err error) {
+func (s *LocalStorage) Delete(ctx context.Context, token string, filename string) (err error) {
 	metadata := filepath.Join(s.basedir, token, fmt.Sprintf("%s.metadata", filename))
-	os.Remove(metadata)
+	_ = os.Remove(metadata)

 	path := filepath.Join(s.basedir, token, filename)
 	err = os.Remove(path)
@@ -107,7 +109,7 @@ func (s *LocalStorage) Delete(token string, filename string) (err error) {
 }

 // Purge cleans up the storage
-func (s *LocalStorage) Purge(days time.Duration) (err error) {
+func (s *LocalStorage) Purge(ctx context.Context, days time.Duration) (err error) {
 	err = filepath.Walk(s.basedir,
 		func(path string, info os.FileInfo, err error) error {
 			if err != nil {
@@ -138,7 +140,7 @@ func (s *LocalStorage) IsNotExist(err error) bool {
 }

 // Put saves a file on storage
-func (s *LocalStorage) Put(token string, filename string, reader io.Reader, contentType string, contentLength uint64) error {
+func (s *LocalStorage) Put(ctx context.Context, token string, filename string, reader io.Reader, contentType string, contentLength uint64) error {
 	var f io.WriteCloser
 	var err error

@@ -148,12 +150,13 @@ func (s *LocalStorage) Put(token string, filename string, reader io.Reader, cont
 		return err
 	}

-	if f, err = os.OpenFile(filepath.Join(path, filename), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600); err != nil {
+	f, err = os.OpenFile(filepath.Join(path, filename), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
+	defer CloseCheck(f.Close)
+
+	if err != nil {
 		return err
 	}

-	defer f.Close()
-
 	if _, err = io.Copy(f, reader); err != nil {
 		return err
 	}
@@ -192,7 +195,7 @@ func (s *S3Storage) Type() string {
 }

 // Head retrieves content length of a file from storage
-func (s *S3Storage) Head(token string, filename string) (contentLength uint64, err error) {
+func (s *S3Storage) Head(ctx context.Context, token string, filename string) (contentLength uint64, err error) {
 	key := fmt.Sprintf("%s/%s", token, filename)

 	headRequest := &s3.HeadObjectInput{
@@ -201,7 +204,7 @@ func (s *S3Storage) Head(token string, filename string) (contentLength uint64, e
 	}

 	// content type , content length
-	response, err := s.s3.HeadObject(headRequest)
+	response, err := s.s3.HeadObjectWithContext(ctx, headRequest)
 	if err != nil {
 		return
 	}
@@ -214,7 +217,7 @@ func (s *S3Storage) Head(token string, filename string) (contentLength uint64, e
 }

 // Purge cleans up the storage
-func (s *S3Storage) Purge(days time.Duration) (err error) {
+func (s *S3Storage) Purge(ctx context.Context, days time.Duration) (err error) {
 	// NOOP expiration is set at upload time
 	return nil
 }
@@ -236,7 +239,7 @@ func (s *S3Storage) IsNotExist(err error) bool {
 }

 // Get retrieves a file from storage
-func (s *S3Storage) Get(token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
+func (s *S3Storage) Get(ctx context.Context, token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
 	key := fmt.Sprintf("%s/%s", token, filename)

 	getRequest := &s3.GetObjectInput{
@@ -244,7 +247,7 @@ func (s *S3Storage) Get(token string, filename string) (reader io.ReadCloser, co
 		Key:    aws.String(key),
 	}

-	response, err := s.s3.GetObject(getRequest)
+	response, err := s.s3.GetObjectWithContext(ctx, getRequest)
 	if err != nil {
 		return
 	}
@@ -258,14 +261,14 @@ func (s *S3Storage) Get(token string, filename string) (reader io.ReadCloser, co
 }

 // Delete removes a file from storage
-func (s *S3Storage) Delete(token string, filename string) (err error) {
+func (s *S3Storage) Delete(ctx context.Context, token string, filename string) (err error) {
 	metadata := fmt.Sprintf("%s/%s.metadata", token, filename)
 	deleteRequest := &s3.DeleteObjectInput{
 		Bucket: aws.String(s.bucket),
 		Key:    aws.String(metadata),
 	}

-	_, err = s.s3.DeleteObject(deleteRequest)
+	_, err = s.s3.DeleteObjectWithContext(ctx, deleteRequest)
 	if err != nil {
 		return
 	}
@@ -276,13 +279,13 @@ func (s *S3Storage) Delete(token string, filename string) (err error) {
 		Key:    aws.String(key),
 	}

-	_, err = s.s3.DeleteObject(deleteRequest)
+	_, err = s.s3.DeleteObjectWithContext(ctx, deleteRequest)

 	return
 }

 // Put saves a file on storage
-func (s *S3Storage) Put(token string, filename string, reader io.Reader, contentType string, contentLength uint64) (err error) {
+func (s *S3Storage) Put(ctx context.Context, token string, filename string, reader io.Reader, contentType string, contentLength uint64) (err error) {
 	key := fmt.Sprintf("%s/%s", token, filename)

 	s.logger.Printf("Uploading file %s to S3 Bucket", filename)
@@ -304,7 +307,7 @@ func (s *S3Storage) Put(token string, filename string, reader io.Reader, content
 		expire = aws.Time(time.Now().Add(s.purgeDays))
 	}

-	_, err = uploader.Upload(&s3manager.UploadInput{
+	_, err = uploader.UploadWithContext(ctx, &s3manager.UploadInput{
 		Bucket:  aws.String(s.bucket),
 		Key:     aws.String(key),
 		Body:    reader,
@@ -337,7 +340,8 @@ func NewGDriveStorage(clientJSONFilepath string, localConfigPath string, basedir
 		return nil, err
 	}

-	srv, err := drive.New(getGDriveClient(config, localConfigPath, logger))
+	// ToDo: Upgrade deprecated version
+	srv, err := drive.New(getGDriveClient(context.TODO(), config, localConfigPath, logger)) // nolint: staticcheck
 	if err != nil {
 		return nil, err
 	}
@@ -427,7 +431,7 @@ func (s *GDrive) findID(filename string, token string) (string, error) {
 	if filename == "" {
 		return tokenID, nil
 	} else if tokenID == "" {
-		return "", fmt.Errorf("Cannot find file %s/%s", token, filename)
+		return "", fmt.Errorf("cannot find file %s/%s", token, filename)
 	}

 	q = fmt.Sprintf("'%s' in parents and name='%s' and mimeType!='%s' and trashed=false", tokenID, filename, gdriveDirectoryMimeType)
@@ -454,7 +458,7 @@ func (s *GDrive) findID(filename string, token string) (string, error) {
 	}

 	if fileID == "" {
-		return "", fmt.Errorf("Cannot find file %s/%s", token, filename)
+		return "", fmt.Errorf("cannot find file %s/%s", token, filename)
 	}

 	return fileID, nil
@@ -466,7 +470,7 @@ func (s *GDrive) Type() string {
 }

 // Head retrieves content length of a file from storage
-func (s *GDrive) Head(token string, filename string) (contentLength uint64, err error) {
+func (s *GDrive) Head(ctx context.Context, token string, filename string) (contentLength uint64, err error) {
 	var fileID string
 	fileID, err = s.findID(filename, token)
 	if err != nil {
@@ -484,7 +488,7 @@ func (s *GDrive) Head(token string, filename string) (contentLength uint64, err
 }

 // Get retrieves a file from storage
-func (s *GDrive) Get(token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
+func (s *GDrive) Get(ctx context.Context, token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
 	var fileID string
 	fileID, err = s.findID(filename, token)
 	if err != nil {
@@ -493,14 +497,16 @@ func (s *GDrive) Get(token string, filename string) (reader io.ReadCloser, conte

 	var fi *drive.File
 	fi, err = s.service.Files.Get(fileID).Fields("size", "md5Checksum").Do()
+	if err != nil {
+		return
+	}
 	if !s.hasChecksum(fi) {
-		err = fmt.Errorf("Cannot find file %s/%s", token, filename)
+		err = fmt.Errorf("cannot find file %s/%s", token, filename)
 		return
 	}

 	contentLength = uint64(fi.Size)

-	ctx := context.Background()
 	var res *http.Response
 	res, err = s.service.Files.Get(fileID).Context(ctx).Download()
 	if err != nil {
@@ -513,9 +519,9 @@ func (s *GDrive) Get(token string, filename string) (reader io.ReadCloser, conte
 }

 // Delete removes a file from storage
-func (s *GDrive) Delete(token string, filename string) (err error) {
+func (s *GDrive) Delete(ctx context.Context, token string, filename string) (err error) {
 	metadata, _ := s.findID(fmt.Sprintf("%s.metadata", filename), token)
-	s.service.Files.Delete(metadata).Do()
+	_ = s.service.Files.Delete(metadata).Do()

 	var fileID string
 	fileID, err = s.findID(filename, token)
@@ -528,7 +534,7 @@ func (s *GDrive) Delete(token string, filename string) (err error) {
 }

 // Purge cleans up the storage
-func (s *GDrive) Purge(days time.Duration) (err error) {
+func (s *GDrive) Purge(ctx context.Context, days time.Duration) (err error) {
 	nextPageToken := ""

 	expirationDate := time.Now().Add(-1 * days).Format(time.RFC3339)
@@ -573,7 +579,7 @@ func (s *GDrive) IsNotExist(err error) bool {
 }

 // Put saves a file on storage
-func (s *GDrive) Put(token string, filename string, reader io.Reader, contentType string, contentLength uint64) error {
+func (s *GDrive) Put(ctx context.Context, token string, filename string, reader io.Reader, contentType string, contentLength uint64) error {
 	dirID, err := s.findID("", token)
 	if err != nil {
 		return err
@@ -584,6 +590,7 @@ func (s *GDrive) Put(token string, filename string, reader io.Reader, contentTyp
 			Name:     token,
 			Parents:  []string{s.rootID},
 			MimeType: gdriveDirectoryMimeType,
+			Size:     int64(contentLength),
 		}

 		di, err := s.service.Files.Create(dir).Fields("id").Do()
@@ -601,7 +608,6 @@ func (s *GDrive) Put(token string, filename string, reader io.Reader, contentTyp
 		MimeType: contentType,
 	}

-	ctx := context.Background()
 	_, err = s.service.Files.Create(dst).Context(ctx).Media(reader, googleapi.ChunkSize(s.chunkSize)).Do()

 	if err != nil {
@@ -612,19 +618,19 @@ func (s *GDrive) Put(token string, filename string, reader io.Reader, contentTyp
 }

 // Retrieve a token, saves the token, then returns the generated client.
-func getGDriveClient(config *oauth2.Config, localConfigPath string, logger *log.Logger) *http.Client {
+func getGDriveClient(ctx context.Context, config *oauth2.Config, localConfigPath string, logger *log.Logger) *http.Client {
 	tokenFile := filepath.Join(localConfigPath, gdriveTokenJSONFile)
 	tok, err := gDriveTokenFromFile(tokenFile)
 	if err != nil {
-		tok = getGDriveTokenFromWeb(config, logger)
+		tok = getGDriveTokenFromWeb(ctx, config, logger)
 		saveGDriveToken(tokenFile, tok, logger)
 	}

-	return config.Client(context.Background(), tok)
+	return config.Client(ctx, tok)
 }

 // Request a token from the web, then returns the retrieved token.
-func getGDriveTokenFromWeb(config *oauth2.Config, logger *log.Logger) *oauth2.Token {
+func getGDriveTokenFromWeb(ctx context.Context, config *oauth2.Config, logger *log.Logger) *oauth2.Token {
 	authURL := config.AuthCodeURL("state-token", oauth2.AccessTypeOffline)
 	fmt.Printf("Go to the following link in your browser then type the "+
 		"authorization code: \n%v\n", authURL)
@@ -634,7 +640,7 @@ func getGDriveTokenFromWeb(config *oauth2.Config, logger *log.Logger) *oauth2.To
 		logger.Fatalf("Unable to read authorization code %v", err)
 	}

-	tok, err := config.Exchange(context.TODO(), authCode)
+	tok, err := config.Exchange(ctx, authCode)
 	if err != nil {
 		logger.Fatalf("Unable to retrieve token from web %v", err)
 	}
@@ -644,7 +650,7 @@ func getGDriveTokenFromWeb(config *oauth2.Config, logger *log.Logger) *oauth2.To
 // Retrieves a token from a local file.
 func gDriveTokenFromFile(file string) (*oauth2.Token, error) {
 	f, err := os.Open(file)
-	defer f.Close()
+	defer CloseCheck(f.Close)
 	if err != nil {
 		return nil, err
 	}
@@ -657,12 +663,15 @@ func gDriveTokenFromFile(file string) (*oauth2.Token, error) {
 func saveGDriveToken(path string, token *oauth2.Token, logger *log.Logger) {
 	logger.Printf("Saving credential file to: %s\n", path)
 	f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
-	defer f.Close()
+	defer CloseCheck(f.Close)
 	if err != nil {
 		logger.Fatalf("Unable to cache oauth token: %v", err)
 	}

-	json.NewEncoder(f).Encode(token)
+	err = json.NewEncoder(f).Encode(token)
+	if err != nil {
+		logger.Fatalf("Unable to encode oauth token: %v", err)
+	}
 }

 // StorjStorage is a storage backed by Storj
@@ -679,14 +688,20 @@ func NewStorjStorage(access, bucket string, purgeDays int, logger *log.Logger) (
 	var instance StorjStorage
 	var err error

-	ctx := context.TODO()
+	pCtx := context.TODO()
+
+	ctx := fpath.WithTempData(pCtx, "", true)
+
+	uplConf := &uplink.Config{
+		UserAgent: "transfer-sh",
+	}

 	parsedAccess, err := uplink.ParseAccess(access)
 	if err != nil {
 		return nil, err
 	}

-	instance.project, err = uplink.OpenProject(ctx, parsedAccess)
+	instance.project, err = uplConf.OpenProject(ctx, parsedAccess)
 	if err != nil {
 		return nil, err
 	}
@@ -711,12 +726,10 @@ func (s *StorjStorage) Type() string {
 }

 // Head retrieves content length of a file from storage
-func (s *StorjStorage) Head(token string, filename string) (contentLength uint64, err error) {
+func (s *StorjStorage) Head(ctx context.Context, token string, filename string) (contentLength uint64, err error) {
 	key := storj.JoinPaths(token, filename)

-	ctx := context.TODO()
-
-	obj, err := s.project.StatObject(ctx, s.bucket.Name, key)
+	obj, err := s.project.StatObject(fpath.WithTempData(ctx, "", true), s.bucket.Name, key)
 	if err != nil {
 		return 0, err
 	}
@@ -727,14 +740,12 @@ func (s *StorjStorage) Head(token string, filename string) (contentLength uint64
 }

 // Get retrieves a file from storage
-func (s *StorjStorage) Get(token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
+func (s *StorjStorage) Get(ctx context.Context, token string, filename string) (reader io.ReadCloser, contentLength uint64, err error) {
 	key := storj.JoinPaths(token, filename)

 	s.logger.Printf("Getting file %s from Storj Bucket", filename)

-	ctx := context.TODO()
-
-	download, err := s.project.DownloadObject(ctx, s.bucket.Name, key, nil)
+	download, err := s.project.DownloadObject(fpath.WithTempData(ctx, "", true), s.bucket.Name, key, nil)
 	if err != nil {
 		return nil, 0, err
 	}
@@ -746,38 +757,34 @@ func (s *StorjStorage) Get(token string, filename string) (reader io.ReadCloser,
 }

 // Delete removes a file from storage
-func (s *StorjStorage) Delete(token string, filename string) (err error) {
+func (s *StorjStorage) Delete(ctx context.Context, token string, filename string) (err error) {
 	key := storj.JoinPaths(token, filename)

 	s.logger.Printf("Deleting file %s from Storj Bucket", filename)

-	ctx := context.TODO()
-
-	_, err = s.project.DeleteObject(ctx, s.bucket.Name, key)
+	_, err = s.project.DeleteObject(fpath.WithTempData(ctx, "", true), s.bucket.Name, key)

 	return
 }

 // Purge cleans up the storage
-func (s *StorjStorage) Purge(days time.Duration) (err error) {
+func (s *StorjStorage) Purge(ctx context.Context, days time.Duration) (err error) {
 	// NOOP expiration is set at upload time
 	return nil
 }

 // Put saves a file on storage
-func (s *StorjStorage) Put(token string, filename string, reader io.Reader, contentType string, contentLength uint64) (err error) {
+func (s *StorjStorage) Put(ctx context.Context, token string, filename string, reader io.Reader, contentType string, contentLength uint64) (err error) {
 	key := storj.JoinPaths(token, filename)

 	s.logger.Printf("Uploading file %s to Storj Bucket", filename)

-	ctx := context.TODO()
-
 	var uploadOptions *uplink.UploadOptions
 	if s.purgeDays.Hours() > 0 {
 		uploadOptions = &uplink.UploadOptions{Expires: time.Now().Add(s.purgeDays)}
 	}

-	writer, err := s.project.UploadObject(ctx, s.bucket.Name, key, uploadOptions)
+	writer, err := s.project.UploadObject(fpath.WithTempData(ctx, "", true), s.bucket.Name, key, uploadOptions)
 	if err != nil {
 		return err
 	}
--- a/server/utils.go
+++ b/server/utils.go
@@ -279,3 +279,9 @@ func formatSize(size int64) string {
 	getSuffix := suffixes[int(math.Floor(base))]
 	return fmt.Sprintf("%s %s", strconv.FormatFloat(newVal, 'f', -1, 64), getSuffix)
 }
+
+func CloseCheck(f func() error) {
+	if err := f(); err != nil {
+		fmt.Println("Received close error:", err)
+	}
+}
--- a/server/virustotal.go
+++ b/server/virustotal.go
@@ -26,7 +26,6 @@ package server

 import (
 	"fmt"
-	"io"
 	"net/http"

 	"github.com/gorilla/mux"
@@ -46,18 +45,16 @@ func (s *Server) virusTotalHandler(w http.ResponseWriter, r *http.Request) {

 	vt, err := virustotal.NewVirusTotal(s.VirusTotalKey)
 	if err != nil {
-		http.Error(w, err.Error(), 500)
+		http.Error(w, err.Error(), http.StatusInternalServerError)
 	}

-	var reader io.Reader
-
-	reader = r.Body
+	reader := r.Body

 	result, err := vt.Scan(filename, reader)
 	if err != nil {
-		http.Error(w, err.Error(), 500)
+		http.Error(w, err.Error(), http.StatusInternalServerError)
 	}

 	s.logger.Println(result)
-	w.Write([]byte(fmt.Sprintf("%v\n", result.Permalink)))
+	_, _ = w.Write([]byte(fmt.Sprintf("%v\n", result.Permalink)))
 }
Author	SHA1	Message	Date
Stefan Benten	92324798d5	server: adding no-store header (#476 ) In order to prevent viewing content, which max-download rate has been reached, we need to ensure the data is not stored locally in a browser cache. To achieve this, we set the Cache-Control Setting to "no-store" according to: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control fixes #470	2022-04-10 12:13:06 +02:00
Ramon Fischer	b30b296ac8	correct typo (#480 )	2022-04-06 01:33:40 +02:00
jeanluc	bb0891cd7d	Docker: Allow selection of (unprivileged) UID/GID at build time (#418 ) * Docker: use custom non-root UID/GID (build-arg)	2022-04-03 14:55:15 +02:00
Andrea Spacca	9c31ceb2c5	Update README.md	2022-04-03 06:17:51 +02:00
Anirudh Haritas Murali	597554a59e	Add X-Url-Delete-* headers to POST handler (#435 ) * Add X-Url-Delete-* headers to POST handler * Remove token from header * Fix writing of headers * Handle error returned by Write * Update handlers.go Co-authored-by: Andrea Spacca <andrea.spacca@gmail.com>	2022-03-02 13:26:00 +01:00
Stefan Benten	368431fb6b	server/storage.go: Update storj dependencies and set user-agent (#467 )	2022-02-09 12:37:11 +01:00
Andrea Spacca	e3bb49993c	fix perform-clamav-prescan (#460 )	2022-01-10 11:01:26 +01:00
Andrea Spacca	cff0a88bf3	Clamav prescan (#389 )	2022-01-09 22:14:10 +01:00
Stefan Benten	492731e31f	server: propagate context to storage layer (#455 ) This change propagates the context of the actual user request through. Additionally it configures the Storj Backend to do in memory buffering instead of relying on temporary files in /tmp/ folders. Fixes #448	2021-12-26 17:17:28 +01:00
Stefan Benten	f062af9fc5	server/handlers.go,storage.go: smaller fixes (#452 ) This change moves a couple of defers in order to prevent them from not being executed since we have returned in error cases early. It also fixes a couple of smaller linting issues, like error messages not starting with a capital letter and variable name collisions with imported packages.	2021-12-26 14:37:22 +01:00
Stefan Benten	2fbd19365c	.github/workflows: adding golangci-lint as new job (#453 ) In order to follow golang's best practices, we should lint the code base properly beyond usual syntax mistakes.	2021-12-26 14:03:27 +01:00
Stefan Benten	5932a194b2	go.mod,go.sum: bumping storj dependency (#454 )	2021-12-26 09:30:45 +01:00
Andrea Spacca	acd6fb084f	remove tor, remove bitcoing, fix contact us (#447 )	2021-12-15 21:06:54 +01:00