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main ... v0.1.0

12 changed files with 195 additions and 1309 deletions

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@ -1,214 +0,0 @@
name: Release
on:
push:
tags:
- 'v[0-9]*'
jobs:
release:
runs-on: ubuntu-latest
container:
image: golang:1.27
volumes:
- /opt/runner/keys:/keys:ro
steps:
- name: Install packaging tools
run: |
apt-get update
apt-get install -y dpkg-dev git curl openssh-client
- name: Setup SSH
run: |
test -r /keys/forgejo_runner || { echo "Deploy key /keys/forgejo_runner chybi"; exit 1; }
install -m 600 /keys/forgejo_runner /tmp/forgejo_runner
echo "GIT_SSH_COMMAND=ssh -p 554 -i /tmp/forgejo_runner -o IdentitiesOnly=yes -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR" >> "$GITHUB_ENV"
- name: Checkout source
run: |
git clone ssh://git@git-ssh.janvete.com:554/seth/Caddyview.git src
cd src
git checkout "${{ github.ref_name }}"
- name: Build binaries, archives and .deb
working-directory: src
run: |
VERSION=${{ github.ref_name }}
VER=${VERSION#v}
mkdir -p dist
for PAIR in darwin/arm64 darwin/amd64 linux/amd64; do
OS=${PAIR%/*}
ARCH=${PAIR#*/}
GOOS=$OS GOARCH=$ARCH go build -ldflags="-s -w" -o dist/caddyview-${OS}-${ARCH} .
STAGING=$(mktemp -d)
cp dist/caddyview-${OS}-${ARCH} ${STAGING}/caddyview
tar -czf dist/caddyview-${VERSION}-${OS}-${ARCH}.tar.gz -C ${STAGING} caddyview
rm -rf ${STAGING}
done
# Build .deb for linux/amd64
DEB_DIR="caddyview_${VER}_amd64"
mkdir -p "${DEB_DIR}/DEBIAN"
mkdir -p "${DEB_DIR}/usr/local/bin"
cp dist/caddyview-linux-amd64 "${DEB_DIR}/usr/local/bin/caddyview"
chmod 755 "${DEB_DIR}/usr/local/bin/caddyview"
cat > "${DEB_DIR}/DEBIAN/control" << CONTROL
Package: caddyview
Version: ${VER}
Section: utils
Priority: optional
Architecture: amd64
Maintainer: seth <seth@janvete.com>
Description: TUI SSH monitor for Caddy web server logs
CONTROL
dpkg-deb --build "${DEB_DIR}" "dist/caddyview_${VER}_amd64.deb"
mv "${DEB_DIR}" "dist/"
echo "=== SHA256 checksums ==="
sha256sum dist/*.tar.gz dist/*.deb
- name: Create Forgejo Release
working-directory: src
env:
FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
FORGEJO_URL: https://git.janvete.com
run: |
VERSION=${{ github.ref_name }}
API="${FORGEJO_URL}/api/v1/repos/seth/Caddyview"
# Try to create release; if it already exists, fetch the existing one.
RELEASE_JSON=$(curl -sS -H "Authorization: token ${FORGEJO_TOKEN}" \
-H "Content-Type: application/json" \
-X POST \
-d "{\"tag_name\":\"${VERSION}\",\"name\":\"${VERSION}\",\"draft\":false,\"prerelease\":false}" \
"${API}/releases")
echo "Create release response: ${RELEASE_JSON}"
RELEASE_ID=$(echo "${RELEASE_JSON}" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
if [ -z "${RELEASE_ID}" ]; then
echo "Release may already exist, fetching existing release..."
EXISTING=$(curl -sS -H "Authorization: token ${FORGEJO_TOKEN}" \
"${API}/releases/tags/${VERSION}")
echo "Existing release response: ${EXISTING}"
RELEASE_ID=$(echo "${EXISTING}" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
fi
if [ -z "${RELEASE_ID}" ]; then
echo "Failed to create or fetch release"
exit 1
fi
echo "release_id=${RELEASE_ID}" >> "$GITHUB_ENV"
for ARCHIVE in dist/*.tar.gz dist/*.deb; do
[ -e "${ARCHIVE}" ] || continue
NAME=$(basename "${ARCHIVE}")
CONTENT_TYPE="application/gzip"
case "${NAME}" in *.deb) CONTENT_TYPE="application/vnd.debian.binary-package" ;; esac
curl -sS -H "Authorization: token ${FORGEJO_TOKEN}" \
-H "Content-Type: ${CONTENT_TYPE}" \
--data-binary "@${ARCHIVE}" \
"${API}/releases/${RELEASE_ID}/assets?name=${NAME}"
echo "Uploaded ${NAME}"
done
- name: Update Homebrew tap
working-directory: src
run: |
VERSION=${{ github.ref_name }}
VER=${VERSION#v}
SHA_ARM64=$(sha256sum dist/caddyview-${VERSION}-darwin-arm64.tar.gz | awk '{print $1}')
SHA_AMD64=$(sha256sum dist/caddyview-${VERSION}-darwin-amd64.tar.gz | awk '{print $1}')
SHA_LINUX=$(sha256sum dist/caddyview-${VERSION}-linux-amd64.tar.gz | awk '{print $1}')
git clone ssh://git@git-ssh.janvete.com:554/seth/homebrew-tools.git tap
cat > tap/Formula/caddyview.rb << FORMULA
class Caddyview < Formula
desc "TUI SSH monitor for Caddy web server logs"
homepage "https://git.janvete.com/seth/Caddyview"
version "${VER}"
license "MIT"
on_macos do
if Hardware::CPU.arm?
url "https://git.janvete.com/seth/Caddyview/releases/download/${VERSION}/caddyview-${VERSION}-darwin-arm64.tar.gz"
sha256 "${SHA_ARM64}"
else
url "https://git.janvete.com/seth/Caddyview/releases/download/${VERSION}/caddyview-${VERSION}-darwin-amd64.tar.gz"
sha256 "${SHA_AMD64}"
end
end
on_linux do
if Hardware::CPU.intel?
url "https://git.janvete.com/seth/Caddyview/releases/download/${VERSION}/caddyview-${VERSION}-linux-amd64.tar.gz"
sha256 "${SHA_LINUX}"
end
end
def install
bin.install "caddyview"
end
test do
assert_match "TUI monitor", shell_output("#{bin}/caddyview --help")
end
end
FORMULA
cd tap
git config user.email "forgejo-actions[bot]@janvete.com"
git config user.name "forgejo-actions[bot]"
git add Formula/caddyview.rb
git commit -m "chore: bump caddyview to ${VERSION}"
git push
- name: Update APT repository
working-directory: src
run: |
VERSION=${{ github.ref_name }}
VER=${VERSION#v}
git clone ssh://git@git-ssh.janvete.com:554/seth/apt.git apt-repo
cp "dist/caddyview_${VER}_amd64.deb" apt-repo/
cd apt-repo
# repo muze byt uplne prazdny (bez commitu a bez branche)
if ! git rev-parse --verify HEAD >/dev/null 2>&1; then
git checkout -b main
fi
dpkg-scanpackages . > Packages
gzip -k -f Packages
cat > Release << RELEASE
Origin: janvete
Label: janvete
Suite: stable
Codename: stable
Version: 1.0
Architectures: amd64
Components: main
Description: janvete tools APT repository
Date: $(date -Ru)
RELEASE
# Append hashes to Release
{
echo "SHA256:"
for f in Packages Packages.gz *.deb; do
[ -e "$f" ] || continue
printf " %s %16d %s\n" "$(sha256sum "$f" | cut -d' ' -f1)" "$(stat -c%s "$f")" "$f"
done
} >> Release
git config user.email "forgejo-actions[bot]@janvete.com"
git config user.name "forgejo-actions[bot]"
git add -A
git commit -m "chore: add caddyview ${VERSION}"
git push -u origin HEAD

2
.gitignore vendored
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@ -1,2 +0,0 @@
dist/
caddyview

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@ -1,92 +0,0 @@
# Caddyview
Remote Caddy log viewer over SSH.
## Installation
### macOS (Homebrew)
```bash
brew tap janvete/tools https://git.janvete.com/seth/homebrew-tools.git
brew install caddyview
```
### Linux (APT)
```bash
echo "deb [trusted=yes] https://git.janvete.com/seth/apt/raw/branch/main ./" | sudo tee /etc/apt/sources.list.d/janvete.list
sudo apt update
sudo apt install caddyview
```
### Linux (tarball)
Download the latest release from the [releases page](https://git.janvete.com/seth/Caddyview/releases) and extract it:
```bash
VERSION=v0.7.0
curl -L "https://git.janvete.com/seth/Caddyview/releases/download/${VERSION}/caddyview-${VERSION}-linux-amd64.tar.gz" | tar xz
sudo mv caddyview /usr/local/bin/
```
## Usage
```bash
caddyview ssh root@192.168.x.x
caddyview ssh -p 2222 admin@server.com
```
Press `[1]` for live traffic, `[2]` for last 24 hours, `[3]` for last 7 days, and `[4]` to view recent 4xx/5xx errors with URL and origin.
## Required Caddyfile Changes
### 1. Add a log block to your Caddyfile
Add the logging configuration to a [snippet](https://caddyserver.com/docs/caddyfile/concepts#snippets) or to each individual site block:
```caddyfile
(hsts) {
log {
output file /var/log/caddy/access.log {
roll_size 100mb
roll_keep 10
}
format json
}
header {
Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
X-Content-Type-Options "nosniff"
Referrer-Policy "strict-origin-when-cross-origin"
Permissions-Policy "geolocation=(), microphone=(), camera=()"
-Server
}
}
some.dns.com {
import hsts
reverse_proxy 192.168.71.6:1378
}
```
### 2. Create the log file with correct permissions (BEFORE reloading!)
```bash
mkdir -p /var/log/caddy
touch /var/log/caddy/access.log
chown caddy:caddy /var/log/caddy/access.log
```
### 3. Reload Caddy
```bash
systemctl reload caddy
```
## Development
The source repository is hosted at `https://git.janvete.com/seth/Caddyview`.
To clone via SSH use the dedicated SSH endpoint:
```bash
git clone ssh://git@git-ssh.janvete.com:554/seth/Caddyview.git
```

View file

@ -4,8 +4,8 @@ import (
"fmt" "fmt"
"os" "os"
"git.janvete.com/seth/caddyview/internal/sshclient" "github.com/janvete/caddyview/internal/sshclient"
"git.janvete.com/seth/caddyview/internal/tui" "github.com/janvete/caddyview/internal/tui"
"github.com/spf13/cobra" "github.com/spf13/cobra"
) )

16
go.mod
View file

@ -1,18 +1,12 @@
module git.janvete.com/seth/caddyview module github.com/janvete/caddyview
go 1.26.4 go 1.26.4
require (
github.com/charmbracelet/bubbletea v1.3.10
github.com/charmbracelet/lipgloss v1.1.0
github.com/spf13/cobra v1.10.2
golang.org/x/crypto v0.53.0
golang.org/x/term v0.47.0
)
require ( require (
github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
github.com/charmbracelet/bubbletea v1.3.10 // indirect
github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
github.com/charmbracelet/lipgloss v1.1.0 // indirect
github.com/charmbracelet/x/ansi v0.10.1 // indirect github.com/charmbracelet/x/ansi v0.10.1 // indirect
github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd // indirect github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd // indirect
github.com/charmbracelet/x/term v0.2.1 // indirect github.com/charmbracelet/x/term v0.2.1 // indirect
@ -26,8 +20,10 @@ require (
github.com/muesli/cancelreader v0.2.2 // indirect github.com/muesli/cancelreader v0.2.2 // indirect
github.com/muesli/termenv v0.16.0 // indirect github.com/muesli/termenv v0.16.0 // indirect
github.com/rivo/uniseg v0.4.7 // indirect github.com/rivo/uniseg v0.4.7 // indirect
github.com/spf13/cobra v1.10.2 // indirect
github.com/spf13/pflag v1.0.9 // indirect github.com/spf13/pflag v1.0.9 // indirect
github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
golang.org/x/sys v0.49.0 // indirect golang.org/x/crypto v0.53.0 // indirect
golang.org/x/sys v0.46.0 // indirect
golang.org/x/text v0.38.0 // indirect golang.org/x/text v0.38.0 // indirect
) )

12
go.sum
View file

@ -44,14 +44,14 @@ github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJu
go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg= go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
golang.org/x/crypto v0.53.0 h1:QZ4Muo8THX6CizN2vPPd5fBGHyogrdK9fG4wLPFUsto= golang.org/x/crypto v0.53.0 h1:QZ4Muo8THX6CizN2vPPd5fBGHyogrdK9fG4wLPFUsto=
golang.org/x/crypto v0.53.0/go.mod h1:DNLU434OwVakk9PzuwV8w62mAJpRJL3vsgcfp4Qnsio= golang.org/x/crypto v0.53.0/go.mod h1:DNLU434OwVakk9PzuwV8w62mAJpRJL3vsgcfp4Qnsio=
golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561 h1:MDc5xs78ZrZr3HMQugiXOAkSZtfTpbJLDr/lwfgO53E=
golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561/go.mod h1:cyybsKvd6eL0RnXn6p/Grxp8F5bW7iYuBgsNCOHpMYE=
golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.49.0 h1:XbzkgYJHdqh/8m2Uu0W/dQv8nktxx4BFHp1M0gROTXA= golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
golang.org/x/sys v0.49.0/go.mod h1:hNLxWAXmnKAxqDtdwIYC4bM9oQPEecfsnNMuSxOs3og= golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/term v0.47.0 h1:cpyOwQkr2Nzxe2p6KnrTG7Ei2wtzjsuSjhpXXepZ/BM= golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
golang.org/x/term v0.47.0/go.mod h1:efAfAuG6RKABvg1ArGebRkvX6LXul14SM67o2e4mUCY= golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
golang.org/x/text v0.38.0 h1:sXmwo9DwP3OK9EZ7PqAdaooSGozfl/3a6/xJcbzPRhE= golang.org/x/text v0.38.0 h1:sXmwo9DwP3OK9EZ7PqAdaooSGozfl/3a6/xJcbzPRhE=
golang.org/x/text v0.38.0/go.mod h1:YXZt3QhHUKYT53r2lLKFIVi6Ao1jdzrTR/KQ09qyxF4= golang.org/x/text v0.38.0/go.mod h1:YXZt3QhHUKYT53r2lLKFIVi6Ao1jdzrTR/KQ09qyxF4=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

View file

@ -2,9 +2,6 @@ package parser
import ( import (
"encoding/json" "encoding/json"
"fmt"
"sort"
"strconv"
"strings" "strings"
"time" "time"
) )
@ -42,14 +39,24 @@ func ParseLine(line string) *LogEntry {
if err := json.Unmarshal([]byte(line), &entry); err != nil { if err := json.Unmarshal([]byte(line), &entry); err != nil {
return nil return nil
} }
if entry.Request.Host == "" || entry.Status == 0 { if entry.Request.Host == "" {
return nil return nil
} }
return &entry return &entry
} }
// -- Stats (used for live view and derived from AggregatedHistory for history) -- // ParseLines parses multiple lines and returns valid entries.
func ParseLines(lines []string) []*LogEntry {
entries := make([]*LogEntry, 0, len(lines))
for _, l := range lines {
if e := ParseLine(l); e != nil {
entries = append(entries, e)
}
}
return entries
}
// Stats holds aggregated metrics for a time window.
type Stats struct { type Stats struct {
TotalRequests int64 TotalRequests int64
TotalBytes int64 TotalBytes int64
@ -83,6 +90,7 @@ func (s *Stats) Add(e *LogEntry) {
} }
} }
// BytesPerSec calculates transfer rate given a window duration in seconds.
func (s *Stats) BytesPerSec(windowSecs float64) float64 { func (s *Stats) BytesPerSec(windowSecs float64) float64 {
if windowSecs <= 0 { if windowSecs <= 0 {
return 0 return 0
@ -90,258 +98,42 @@ func (s *Stats) BytesPerSec(windowSecs float64) float64 {
return float64(s.TotalBytes) / windowSecs return float64(s.TotalBytes) / windowSecs
} }
// -- Bucket (time-series bar chart data) -------------------------------------- // Bucket aggregates entries into fixed time buckets for the history view.
type Bucket struct { type Bucket struct {
Time time.Time Time time.Time
Requests int64 Requests int64
Bytes int64 Bytes int64
} }
// -- ErrorEntry (4xx/5xx detail) ---------------------------------------------- // ComputeStats builds a Stats object from a slice of log entries.
func ComputeStats(entries []*LogEntry) *Stats {
// ErrorEntry holds one failed request for the errors panel.
type ErrorEntry struct {
Time time.Time
Status int
Method string
URI string
Host string
RemoteIP string
}
// -- AggregatedHistory (server-side aggregation result) -----------------------
// AggregatedBucket is one time bucket returned by server-side awk aggregation.
type AggregatedBucket struct {
Time time.Time
Requests, Bytes int64
Status2xx, Status3xx, Status4xx, Status5xx int64
}
// AggregatedHistory holds the merged result of per-file server-side aggregations.
type AggregatedHistory struct {
Buckets []AggregatedBucket
TopHosts map[string]int64
TopIPs map[string]int64
TotalReqs int64
TotalBytes int64
DurSumSecs float64
Errors []ErrorEntry
}
// FilterSince drops buckets and errors older than the window and recomputes
// totals from the remaining buckets, so the chart and totals always agree.
// TopHosts and TopIPs come from whole rotated files and may slightly overcount
// at the oldest edge of the window — acceptable for a monitoring view.
func (h *AggregatedHistory) FilterSince(since int64) {
avgDur := 0.0
if h.TotalReqs > 0 {
avgDur = h.DurSumSecs / float64(h.TotalReqs)
}
kept := h.Buckets[:0]
var reqs, bytes int64
for _, b := range h.Buckets {
if b.Time.Unix() >= since {
kept = append(kept, b)
reqs += b.Requests
bytes += b.Bytes
}
}
h.Buckets = kept
h.TotalReqs = reqs
h.TotalBytes = bytes
h.DurSumSecs = avgDur * float64(reqs)
keptErrs := h.Errors[:0]
for _, e := range h.Errors {
if e.Time.Unix() >= since {
keptErrs = append(keptErrs, e)
}
}
h.Errors = keptErrs
}
// ToStats converts aggregated history to a Stats object for use in the TUI panels.
func (h *AggregatedHistory) ToStats() *Stats {
s := NewStats() s := NewStats()
s.TotalRequests = h.TotalReqs for _, e := range entries {
s.TotalBytes = h.TotalBytes s.Add(e)
s.TopHosts = h.TopHosts
s.TopIPs = h.TopIPs
if h.TotalReqs > 0 {
s.AvgDurationMs = h.DurSumSecs / float64(h.TotalReqs) * 1000
}
for _, b := range h.Buckets {
s.StatusCodes[200] += b.Status2xx
s.StatusCodes[301] += b.Status3xx
s.StatusCodes[404] += b.Status4xx
s.StatusCodes[500] += b.Status5xx
} }
return s return s
} }
// ToBuckets re-buckets the hourly server-side buckets into the granularity the // Bucketize groups entries into buckets of the given duration.
// chart wants (e.g. 6h for the week view) and returns them sorted by time. func Bucketize(entries []*LogEntry, bucketSize time.Duration) []Bucket {
func (h *AggregatedHistory) ToBuckets(size time.Duration) []Bucket { if len(entries) == 0 {
secs := int64(size.Seconds())
if secs < 1 {
secs = 1
}
merged := map[int64]*Bucket{}
for _, ab := range h.Buckets {
ts := ab.Time.Unix() / secs * secs
b, ok := merged[ts]
if !ok {
b = &Bucket{Time: time.Unix(ts, 0)}
merged[ts] = b
}
b.Requests += ab.Requests
b.Bytes += ab.Bytes
}
out := make([]Bucket, 0, len(merged))
for _, b := range merged {
out = append(out, *b)
}
sort.Slice(out, func(i, j int) bool { return out[i].Time.Before(out[j].Time) })
return out
}
// RecentErrors returns the last n errors sorted by time (newest first).
func (h *AggregatedHistory) RecentErrors(n int) []ErrorEntry {
if n <= 0 {
return nil return nil
} }
sorted := make([]ErrorEntry, len(h.Errors))
copy(sorted, h.Errors) buckets := map[int64]*Bucket{}
sort.Slice(sorted, func(i, j int) bool { for _, e := range entries {
return sorted[i].Time.After(sorted[j].Time) t := e.Time().Truncate(bucketSize)
}) key := t.Unix()
if len(sorted) > n { if _, ok := buckets[key]; !ok {
return sorted[:n] buckets[key] = &Bucket{Time: t}
} }
return sorted buckets[key].Requests++
} buckets[key].Bytes += e.Size
}
// ParseAggregatedOutput parses the concatenated output of per-file server-side
// awk aggregations. Sections may repeat (one set per log file) and are merged: result := make([]Bucket, 0, len(buckets))
// bucket counts sum by timestamp, host/IP counts sum by key, totals sum. for _, b := range buckets {
// result = append(result, *b)
// Per-file format: }
// return result
// BUCKETS
// <unix_ts> <count> <bytes> <2xx> <3xx> <4xx> <5xx>
// HOSTS
// <count> <host>
// IPS
// <count> <ip>
// ERRORS
// <unix_ts>\t<status>\t<method>\t<uri>\t<host>\t<remote_ip>
// TOTALS
// <total_reqs> <total_bytes> <duration_sum_secs>
func ParseAggregatedOutput(raw string) (*AggregatedHistory, error) {
h := &AggregatedHistory{
TopHosts: make(map[string]int64),
TopIPs: make(map[string]int64),
}
bucketsByTS := map[int64]*AggregatedBucket{}
section := ""
sawSection := false
for _, line := range strings.Split(strings.TrimSpace(raw), "\n") {
line = strings.TrimSpace(line)
if line == "" {
continue
}
switch line {
case "BUCKETS", "HOSTS", "IPS", "ERRORS", "TOTALS":
section = line
sawSection = true
continue
}
fields := strings.Fields(line)
switch section {
case "BUCKETS":
if len(fields) < 7 {
continue
}
ts, err := strconv.ParseInt(fields[0], 10, 64)
if err != nil {
continue
}
ab, ok := bucketsByTS[ts]
if !ok {
ab = &AggregatedBucket{Time: time.Unix(ts, 0)}
bucketsByTS[ts] = ab
}
n := func(i int) int64 { v, _ := strconv.ParseInt(fields[i], 10, 64); return v }
ab.Requests += n(1)
ab.Bytes += n(2)
ab.Status2xx += n(3)
ab.Status3xx += n(4)
ab.Status4xx += n(5)
ab.Status5xx += n(6)
case "HOSTS":
if len(fields) < 2 {
continue
}
count, _ := strconv.ParseInt(fields[0], 10, 64)
host := strings.Join(fields[1:], " ")
h.TopHosts[host] += count
case "IPS":
if len(fields) < 2 {
continue
}
count, _ := strconv.ParseInt(fields[0], 10, 64)
h.TopIPs[fields[1]] += count
case "ERRORS":
// Tab-separated: ts status method uri host remote_ip
parts := strings.Split(line, "\t")
if len(parts) < 6 {
continue
}
// Caddy logs ts as a float (unix seconds with fractional part).
tsFloat, err := strconv.ParseFloat(parts[0], 64)
if err != nil {
continue
}
status, _ := strconv.Atoi(parts[1])
h.Errors = append(h.Errors, ErrorEntry{
Time: time.Unix(int64(tsFloat), 0),
Status: status,
Method: parts[2],
URI: parts[3],
Host: parts[4],
RemoteIP: parts[5],
})
case "TOTALS":
if len(fields) < 2 {
continue
}
reqs, _ := strconv.ParseInt(fields[0], 10, 64)
bytes, _ := strconv.ParseInt(fields[1], 10, 64)
h.TotalReqs += reqs
h.TotalBytes += bytes
if len(fields) >= 3 {
dur, _ := strconv.ParseFloat(fields[2], 64)
h.DurSumSecs += dur
}
}
}
if !sawSection {
return nil, fmt.Errorf("no aggregation output received from server")
}
h.Buckets = make([]AggregatedBucket, 0, len(bucketsByTS))
for _, ab := range bucketsByTS {
h.Buckets = append(h.Buckets, *ab)
}
sort.Slice(h.Buckets, func(i, j int) bool { return h.Buckets[i].Time.Before(h.Buckets[j].Time) })
return h, nil
} }

View file

@ -1,95 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found at https://go.dev/LICENSE.
//
// Adapted from golang.org/x/crypto/ssh/internal/bcrypt_pbkdf, which is not
// importable (internal package). Implements bcrypt_pbkdf(3) from OpenBSD.
//
// See https://flak.tedunangst.com/post/bcrypt-pbkdf and
// https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libutil/bcrypt_pbkdf.c.
package sshclient
import (
"crypto/sha512"
"errors"
"golang.org/x/crypto/blowfish"
)
const bcryptBlockSize = 32
// bcryptPBKDF derives a key from the password, salt and rounds count,
// returning a []byte of length keyLen that can be used as cryptographic key.
func bcryptPBKDF(password, salt []byte, rounds, keyLen int) ([]byte, error) {
if rounds < 1 {
return nil, errors.New("bcrypt_pbkdf: number of rounds is too small")
}
if len(password) == 0 {
return nil, errors.New("bcrypt_pbkdf: empty password")
}
if len(salt) == 0 || len(salt) > 1<<20 {
return nil, errors.New("bcrypt_pbkdf: bad salt length")
}
if keyLen > 1024 {
return nil, errors.New("bcrypt_pbkdf: keyLen is too large")
}
numBlocks := (keyLen + bcryptBlockSize - 1) / bcryptBlockSize
key := make([]byte, numBlocks*bcryptBlockSize)
h := sha512.New()
h.Write(password)
shapass := h.Sum(nil)
shasalt := make([]byte, 0, sha512.Size)
cnt, tmp := make([]byte, 4), make([]byte, bcryptBlockSize)
for block := 1; block <= numBlocks; block++ {
h.Reset()
h.Write(salt)
cnt[0] = byte(block >> 24)
cnt[1] = byte(block >> 16)
cnt[2] = byte(block >> 8)
cnt[3] = byte(block)
h.Write(cnt)
bcryptHash(tmp, shapass, h.Sum(shasalt))
out := make([]byte, bcryptBlockSize)
copy(out, tmp)
for i := 2; i <= rounds; i++ {
h.Reset()
h.Write(tmp)
bcryptHash(tmp, shapass, h.Sum(shasalt))
for j := 0; j < len(out); j++ {
out[j] ^= tmp[j]
}
}
for i, v := range out {
key[i*numBlocks+(block-1)] = v
}
}
return key[:keyLen], nil
}
var bcryptMagic = []byte("OxychromaticBlowfishSwatDynamite")
func bcryptHash(out, shapass, shasalt []byte) {
c, err := blowfish.NewSaltedCipher(shapass, shasalt)
if err != nil {
panic(err)
}
for i := 0; i < 64; i++ {
blowfish.ExpandKey(shasalt, c)
blowfish.ExpandKey(shapass, c)
}
copy(out, bcryptMagic)
for i := 0; i < 32; i += 8 {
for j := 0; j < 64; j++ {
c.Encrypt(out[i:i+8], out[i:i+8])
}
}
// Swap bytes due to different endianness.
for i := 0; i < 32; i += 4 {
out[i+3], out[i+2], out[i+1], out[i] = out[i], out[i+1], out[i+2], out[i+3]
}
}

View file

@ -2,17 +2,12 @@ package sshclient
import ( import (
"bufio" "bufio"
"errors"
"fmt" "fmt"
"net"
"os" "os"
"path/filepath" "path/filepath"
"strings" "strings"
"git.janvete.com/seth/caddyview/internal/parser"
"golang.org/x/crypto/ssh" "golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/agent"
"golang.org/x/term"
) )
type Client struct { type Client struct {
@ -66,7 +61,20 @@ func (c *Client) RunCommand(cmd string) (string, error) {
return string(out), err return string(out), err
} }
// StreamLines streams new lines from a remote file (like tail -F) into the channel. // TailLines reads the last n lines of a remote file.
func (c *Client) TailLines(path string, n int) ([]string, error) {
out, err := c.RunCommand(fmt.Sprintf("tail -n %d %s 2>/dev/null", n, path))
if err != nil {
return nil, fmt.Errorf("cannot read %s: %w", path, err)
}
lines := strings.Split(strings.TrimSpace(out), "\n")
if len(lines) == 1 && lines[0] == "" {
return nil, nil
}
return lines, nil
}
// StreamLines streams new lines from a remote file (like tail -f) into the channel.
func (c *Client) StreamLines(path string, lines chan<- string, done <-chan struct{}) error { func (c *Client) StreamLines(path string, lines chan<- string, done <-chan struct{}) error {
session, err := c.conn.NewSession() session, err := c.conn.NewSession()
if err != nil { if err != nil {
@ -75,12 +83,11 @@ func (c *Client) StreamLines(path string, lines chan<- string, done <-chan struc
stdout, err := session.StdoutPipe() stdout, err := session.StdoutPipe()
if err != nil { if err != nil {
session.Close()
return err return err
} }
// -F follows by name: Caddy rotates by renaming the file, which would if err := session.Start(fmt.Sprintf("tail -n 0 -f %s 2>/dev/null", path)); err != nil {
// silently kill a plain -f stream at every rotation.
if err := session.Start(fmt.Sprintf("tail -n 0 -F %s 2>/dev/null", path)); err != nil {
session.Close() session.Close()
return err return err
} }
@ -88,7 +95,6 @@ func (c *Client) StreamLines(path string, lines chan<- string, done <-chan struc
go func() { go func() {
defer session.Close() defer session.Close()
scanner := bufio.NewScanner(stdout) scanner := bufio.NewScanner(stdout)
scanner.Buffer(make([]byte, 64*1024), 1024*1024)
for scanner.Scan() { for scanner.Scan() {
select { select {
case <-done: case <-done:
@ -134,24 +140,17 @@ func parseTarget(target string) (user, host string, err error) {
} }
func buildAuthMethods(keyPath string) ([]ssh.AuthMethod, error) { func buildAuthMethods(keyPath string) ([]ssh.AuthMethod, error) {
var methods []ssh.AuthMethod candidates := []string{}
// SSH agent — uses whatever keys are loaded in the agent (macOS Keychain, ssh-add, etc.)
if m := agentAuth(); m != nil {
methods = append(methods, m)
}
// Explicit key file or common defaults
var candidates []string
if keyPath != "" { if keyPath != "" {
candidates = append(candidates, keyPath) candidates = append(candidates, keyPath)
} else { } else {
home, _ := os.UserHomeDir() home, _ := os.UserHomeDir()
for _, name := range []string{"id_ed25519", "id_ecdsa", "id_rsa"} { candidates = append(candidates,
candidates = append(candidates, filepath.Join(home, ".ssh", name)) filepath.Join(home, ".ssh", "id_ed25519"),
filepath.Join(home, ".ssh", "id_rsa"),
)
} }
}
var problems []string
for _, p := range candidates { for _, p := range candidates {
data, err := os.ReadFile(p) data, err := os.ReadFile(p)
if err != nil { if err != nil {
@ -159,69 +158,12 @@ func buildAuthMethods(keyPath string) ([]ssh.AuthMethod, error) {
} }
signer, err := ssh.ParsePrivateKey(data) signer, err := ssh.ParsePrivateKey(data)
if err != nil { if err != nil {
var passErr *ssh.PassphraseMissingError
if errors.As(err, &passErr) {
signer, err = unlockWithPassphrase(p, data)
}
if err != nil {
problems = append(problems, fmt.Sprintf("%s (%v)", p, err))
continue continue
} }
} return []ssh.AuthMethod{ssh.PublicKeys(signer)}, nil
methods = append(methods, ssh.PublicKeys(signer))
} }
if len(methods) == 0 { return nil, fmt.Errorf("no usable SSH private key found (tried: %v)", candidates)
if len(problems) > 0 {
return nil, fmt.Errorf("key files found but could not be loaded: %s", strings.Join(problems, "; "))
}
return nil, fmt.Errorf("no SSH auth method available — no agent (SSH_AUTH_SOCK) and no key files found in %v", candidates)
}
return methods, nil
}
// unlockWithPassphrase prompts for the passphrase of an encrypted private key.
// It runs before the TUI starts, so stdin is still a normal terminal.
func unlockWithPassphrase(path string, data []byte) (ssh.Signer, error) {
if !term.IsTerminal(int(os.Stdin.Fd())) {
return nil, fmt.Errorf("key is passphrase-protected and stdin is not a terminal")
}
for attempt := 0; attempt < 3; attempt++ {
fmt.Fprintf(os.Stderr, "Enter passphrase for %s: ", path)
pass, err := term.ReadPassword(int(os.Stdin.Fd()))
fmt.Fprintln(os.Stderr)
if err != nil {
return nil, err
}
signer, err := parsePrivateKeyWithPassphrase(data, pass)
if err == nil {
return signer, nil
}
fmt.Fprintf(os.Stderr, "caddyview: cannot decrypt key: %v\n", err)
}
return nil, fmt.Errorf("could not decrypt key in 3 attempts")
}
// parsePrivateKeyWithPassphrase handles ciphers beyond what x/crypto/ssh
// supports (aes256-gcm@openssh.com, e.g. 1Password key exports).
func parsePrivateKeyWithPassphrase(data, pass []byte) (ssh.Signer, error) {
if isGCMEncryptedKey(data) {
return parseGCMKey(data, pass)
}
return ssh.ParsePrivateKeyWithPassphrase(data, pass)
}
// agentAuth returns an auth method backed by the SSH agent if SSH_AUTH_SOCK is set.
func agentAuth() ssh.AuthMethod {
sock := os.Getenv("SSH_AUTH_SOCK")
if sock == "" {
return nil
}
conn, err := net.Dial("unix", sock)
if err != nil {
return nil
}
return ssh.PublicKeysCallback(agent.NewClient(conn).Signers)
} }
func parseMeminfo(raw string) (totalMB, usedMB int64) { func parseMeminfo(raw string) (totalMB, usedMB int64) {
@ -274,88 +216,9 @@ func parseCPUStat(raw string) float64 {
return (totalDiff - idleDiff) / totalDiff * 100 return (totalDiff - idleDiff) / totalDiff * 100
} }
// historyAwkProg aggregates Caddy JSON log lines into hourly summary buckets // LoadHistoricalLines reads log lines newer than `since` from the main log file
// and collects the last 100 4xx/5xx errors per file. It runs entirely on the // and any rotated versions (access.log.1, access.log.2.gz, etc.).
// server and uses only POSIX awk constructs (works with gawk, mawk and busybox func (c *Client) LoadHistoricalLines(logPath string, since int64) ([]string, error) {
// awk). IPs are capped to the top 50 per file so the output stays small even on
// servers with millions of unique clients.
const historyAwkProg = `
BEGIN { OFS=" " }
{
if (index($0,"\"msg\":\"handled request\"") == 0) next
p = index($0,"\"ts\":")
if (p == 0) next
ts = substr($0,p+5,20)+0
if (ts < cutoff) next
b = int(ts/bucket)*bucket
p = index($0,"\"status\":")
st = (p>0) ? substr($0,p+9,5)+0 : 0
p = index($0,"\"size\":")
sz = (p>0) ? substr($0,p+7,15)+0 : 0
p = index($0,"\"duration\":")
du = (p>0) ? substr($0,p+11,14)+0 : 0
p = index($0,"\"host\":\"")
if (p>0) { rest=substr($0,p+8); q=index(rest,"\""); ho=(q>0)?substr(rest,1,q-1):"?" } else ho="?"
p = index($0,"\"remote_ip\":\"")
if (p>0) { rest=substr($0,p+13); q=index(rest,"\""); ip=(q>0)?substr(rest,1,q-1):"?" } else ip="?"
p = index($0,"\"uri\":\"")
if (p>0) { rest=substr($0,p+7); q=index(rest,"\""); uri=(q>0)?substr(rest,1,q-1):"?" } else uri="?"
p = index($0,"\"method\":\"")
if (p>0) { rest=substr($0,p+10); q=index(rest,"\""); meth=(q>0)?substr(rest,1,q-1):"?" } else meth="?"
bc[b]++; bb[b]+=sz
if (st>=500) bs5[b]++
else if (st>=400) bs4[b]++
else if (st>=300) bs3[b]++
else if (st>=200) bs2[b]++
hc[ho]++; ic[ip]++
tot++; totb+=sz; totd+=du
if (st >= 400) {
err[++errN] = ts "\t" st "\t" meth "\t" uri "\t" ho "\t" ip
if (errN > 100) {
for (i=2; i<=errN; i++) err[i-1] = err[i]
errN--
}
}
}
END {
print "BUCKETS"
for (b in bc) print b, bc[b], bb[b], bs2[b]+0, bs3[b]+0, bs4[b]+0, bs5[b]+0
print "HOSTS"
for (h in hc) print hc[h], h
print "IPS"
k = 50
for (i in ic) n++
while (k > 0 && n > 0) {
max = -1; mi = ""
for (i in ic) if (ic[i] > max) { max = ic[i]; mi = i }
print ic[mi], mi
delete ic[mi]
k--; n--
}
print "ERRORS"
for (i=1; i<=errN; i++) print err[i]
print "TOTALS"
print tot+0, totb+0, totd+0
}`
// LoadAggregatedHistory aggregates log data on the remote server using awk,
// returning only summary buckets instead of raw lines. This is critical for
// high-traffic servers where raw line transfer would be impractical.
//
// Rotated log files are immutable, so each one is aggregated exactly once and
// the result is cached on the server (/tmp/caddyview_*.cache); after a
// rotation only the single new file is scanned. The current log file is cached
// incrementally: only newly appended lines are processed on refresh, so even a
// 100 MB active log refreshes in seconds. Buckets are always hourly; the caller
// re-buckets client-side, which lets all tabs share the same caches.
//
// since: unix cutoff used client-side after aggregation (ignored server-side so
// the cache can be reused across different windows).
// maxAgeDays: only look at files modified within this many days
func (c *Client) LoadAggregatedHistory(logPath string, since int64, maxAgeDays int) (*parser.AggregatedHistory, error) {
lastSlash := strings.LastIndex(logPath, "/") lastSlash := strings.LastIndex(logPath, "/")
dir, base := "/", logPath dir, base := "/", logPath
if lastSlash >= 0 { if lastSlash >= 0 {
@ -366,78 +229,22 @@ func (c *Client) LoadAggregatedHistory(logPath string, since int64, maxAgeDays i
base = logPath[lastSlash+1:] base = logPath[lastSlash+1:]
} }
// Match both Caddy's native rotation naming (access-2026-06-12T10-30-00.000.log // Find all rotated log files, cat/zcat them, filter JSON lines by ts field.
// and .log.gz next to access.log) and classic logrotate naming (access.log.1.gz). // awk: find offset of "ts": then parse the numeric value after it.
stem, ext := base, "" cmd := fmt.Sprintf(
if dot := strings.LastIndex(base, "."); dot > 0 { `find %s -name '%s*' -type f 2>/dev/null | sort -r | `+
stem, ext = base[:dot], base[dot:] `while read f; do case "$f" in *.gz) zcat "$f" ;; *) cat "$f" ;; esac; done 2>/dev/null | `+
} `awk -v c=%d '{p=index($0,"\"ts\":"); if(p>0){v=substr($0,p+5,20)+0; if(v>=c) print}}'`,
namePattern := fmt.Sprintf( dir, base, since,
`\( -name '%s' -o -name '%s.*' -o -name '%s-*%s' -o -name '%s-*%s.gz' \)`,
base, base, stem, ext, stem, ext,
) )
cacheKey := func(path string) string { out, err := c.RunCommand(cmd)
return strings.Map(func(r rune) rune {
if (r >= 'A' && r <= 'Z') || (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') {
return r
}
return '_'
}, path)
}
key := cacheKey(logPath)
// Shell script that aggregates each file. The current log is handled
// incrementally via a line-count/inode marker; rotated files use immutable caches.
script := fmt.Sprintf(
`set -e
find /tmp -maxdepth 1 -name 'caddyview_*' -mtime +8 -delete 2>/dev/null || true
find %s %s -type f -mtime -%d 2>/dev/null | sort | while read -r f; do
if [ "$f" = "%s" ]; then
c="/tmp/caddyview_%s.cache"
m="/tmp/caddyview_%s.marker"
read inode < <(stat -c '%%i' "$f" 2>/dev/null || echo "0")
read lines < <(wc -l < "$f" 2>/dev/null || echo "0")
use_old=false
if [ -s "$c" ] && [ -s "$m" ]; then
read old_inode old_lines < "$m"
if [ "$inode" = "$old_inode" ] && [ "$lines" -ge "$old_lines" ]; then
use_old=true
fi
fi
if [ "$use_old" = true ]; then
cat "$c"
if [ "$lines" -gt "$old_lines" ]; then
tail -n +$((old_lines + 1)) "$f" 2>/dev/null | awk -v cutoff=0 -v bucket=3600 '%s'
fi
else
awk -v cutoff=0 -v bucket=3600 '%s' < "$f" > "$c"
fi
echo "$inode $lines" > "$m"
if [ "$use_old" != "true" ]; then cat "$c"; fi
else
key=$(printf '%%s' "$f" | tr -c 'A-Za-z0-9' '_')
c="/tmp/caddyview_${key}.cache"
if [ -s "$c" ] && [ "$c" -nt "$f" ]; then
cat "$c"
else
t=$(mktemp /tmp/caddyview.XXXXXX 2>/dev/null) || t="/tmp/caddyview_tmp.$$"
case "$f" in *.gz) zcat "$f" ;; *) cat "$f" ;; esac 2>/dev/null \
| awk -v cutoff=0 -v bucket=3600 '%s' > "$t" && mv "$t" "$c" && cat "$c" || cat "$t" 2>/dev/null
fi
fi
done`,
dir, namePattern, maxAgeDays+1,
logPath,
key, key,
historyAwkProg,
historyAwkProg,
historyAwkProg,
)
out, err := c.RunCommand(script)
if err != nil && strings.TrimSpace(out) == "" { if err != nil && strings.TrimSpace(out) == "" {
return nil, fmt.Errorf("aggregation failed: %w", err) return nil, fmt.Errorf("failed to read historical logs: %w", err)
} }
return parser.ParseAggregatedOutput(out) out = strings.TrimSpace(out)
if out == "" {
return nil, nil
}
return strings.Split(out, "\n"), nil
} }

View file

@ -1,122 +0,0 @@
package sshclient
import (
"crypto/aes"
"crypto/cipher"
"encoding/pem"
"errors"
"fmt"
"golang.org/x/crypto/ssh"
)
// aes256-gcm@openssh.com is a cipher OpenSSH (and 1Password key exports) may
// use for private key files. golang.org/x/crypto/ssh only supports aes256-ctr
// and aes256-cbc, so these keys are decrypted here and re-marshalled as
// unencrypted openssh-key-v1 blobs that ssh.ParsePrivateKey accepts.
const (
opensshKeyMagic = "openssh-key-v1\x00"
opensshGCMCipher = "aes256-gcm@openssh.com"
gcmTagSize = 16
)
type opensshPrivateKeyHeader struct {
CipherName string
KdfName string
KdfOpts string
NumKeys uint32
PubKey []byte
PrivKeyBlock []byte
// For AEAD ciphers (aes256-gcm@openssh.com) OpenSSH stores the 16-byte
// auth tag as raw bytes after the encrypted block, not inside it.
Rest []byte `ssh:"rest"`
}
// isGCMEncryptedKey reports whether data is an OpenSSH private key encrypted
// with aes256-gcm@openssh.com.
func isGCMEncryptedKey(data []byte) bool {
block, _ := pem.Decode(data)
if block == nil || block.Type != "OPENSSH PRIVATE KEY" {
return false
}
if len(block.Bytes) < len(opensshKeyMagic) || string(block.Bytes[:len(opensshKeyMagic)]) != opensshKeyMagic {
return false
}
var header struct {
CipherName string
Rest []byte `ssh:"rest"`
}
if err := ssh.Unmarshal(block.Bytes[len(opensshKeyMagic):], &header); err != nil {
return false
}
return header.CipherName == opensshGCMCipher
}
// parseGCMKey decrypts an aes256-gcm@openssh.com encrypted OpenSSH private
// key with passphrase and returns the signer.
func parseGCMKey(data, passphrase []byte) (ssh.Signer, error) {
block, _ := pem.Decode(data)
if block == nil || len(block.Bytes) < len(opensshKeyMagic) {
return nil, errors.New("invalid OpenSSH private key PEM")
}
var w opensshPrivateKeyHeader
if err := ssh.Unmarshal(block.Bytes[len(opensshKeyMagic):], &w); err != nil {
return nil, err
}
if w.NumKeys != 1 {
return nil, errors.New("multi-key files are not supported")
}
if w.KdfName != "bcrypt" {
return nil, fmt.Errorf("unknown KDF %q, only supports %q", w.KdfName, "bcrypt")
}
var kdfOpts struct {
Salt string
Rounds uint32
}
if err := ssh.Unmarshal([]byte(w.KdfOpts), &kdfOpts); err != nil {
return nil, err
}
// Same cap as x/crypto/ssh so a hostile file cannot tie up the caller.
const maxRounds = 1 << 11
if kdfOpts.Rounds > maxRounds {
return nil, fmt.Errorf("bcrypt KDF rounds %d exceed maximum %d", kdfOpts.Rounds, maxRounds)
}
// AES-256-GCM: 32-byte key + 12-byte nonce derived by bcrypt_pbkdf.
// The 16-byte auth tag follows the encrypted block as raw bytes;
// gcm.Open expects it appended to the ciphertext.
if len(w.Rest) != gcmTagSize {
return nil, fmt.Errorf("unexpected GCM tag length %d", len(w.Rest))
}
k, err := bcryptPBKDF(passphrase, []byte(kdfOpts.Salt), int(kdfOpts.Rounds), 32+12)
if err != nil {
return nil, err
}
aesCipher, err := aes.NewCipher(k[:32])
if err != nil {
return nil, err
}
gcm, err := cipher.NewGCM(aesCipher)
if err != nil {
return nil, err
}
sealed := make([]byte, 0, len(w.PrivKeyBlock)+gcmTagSize)
sealed = append(sealed, w.PrivKeyBlock...)
sealed = append(sealed, w.Rest...)
plain, err := gcm.Open(nil, k[32:], sealed, nil)
if err != nil {
return nil, err
}
// Re-marshal as an unencrypted key (tag dropped). The plaintext keeps
// its original OpenSSH padding, which ssh.ParsePrivateKey validates.
w.CipherName = "none"
w.KdfName = "none"
w.KdfOpts = ""
w.PrivKeyBlock = plain
w.Rest = nil
raw := make([]byte, 0, len(opensshKeyMagic)+len(plain)+128)
raw = append(raw, opensshKeyMagic...)
raw = append(raw, ssh.Marshal(&w)...)
return ssh.ParsePrivateKey(pem.EncodeToMemory(&pem.Block{Type: "OPENSSH PRIVATE KEY", Bytes: raw}))
}

View file

@ -9,8 +9,8 @@ import (
tea "github.com/charmbracelet/bubbletea" tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss" "github.com/charmbracelet/lipgloss"
"git.janvete.com/seth/caddyview/internal/parser" "github.com/janvete/caddyview/internal/parser"
"git.janvete.com/seth/caddyview/internal/sshclient" "github.com/janvete/caddyview/internal/sshclient"
) )
// -- tabs --------------------------------------------------------------------- // -- tabs ---------------------------------------------------------------------
@ -21,83 +21,81 @@ const (
tabLive viewTab = 0 tabLive viewTab = 0
tabDay viewTab = 1 tabDay viewTab = 1
tabWeek viewTab = 2 tabWeek viewTab = 2
tabErrors viewTab = 3 tabMonth viewTab = 3
) )
var tabLabels = []string{"[1] LIVE", "[2] 1 DAY", "[3] 1 WEEK", "[4] ERRORS"} var tabLabels = []string{"[1] Live", "[2] 1 Day", "[3] 1 Week", "[4] 1 Month"}
// tabWindow returns how far back each history tab reaches. // tabWindow returns how far back each history tab reaches.
func tabWindow(t viewTab) time.Duration { func tabWindow(t viewTab) time.Duration {
if t == tabWeek { switch t {
return 7 * 24 * time.Hour case tabDay:
}
return 24 * time.Hour return 24 * time.Hour
case tabWeek:
return 7 * 24 * time.Hour
case tabMonth:
return 30 * 24 * time.Hour
}
return 0
} }
// tabBucketSize returns the bucket granularity for the bar chart. // tabBucketSize returns the bucket granularity for the bar chart.
func tabBucketSize(t viewTab) time.Duration { func tabBucketSize(t viewTab) time.Duration {
if t == tabWeek { switch t {
case tabDay:
return time.Hour
case tabWeek:
return 6 * time.Hour return 6 * time.Hour
case tabMonth:
return 24 * time.Hour
} }
return time.Hour return time.Hour
} }
// -- styles (green phosphor / amber CRT palette) -------------------------------- // -- styles -------------------------------------------------------------------
var ( var (
colGreen = lipgloss.Color("40") // primary phosphor green
colBright = lipgloss.Color("46") // highlights
colDark = lipgloss.Color("28") // borders
colFaint = lipgloss.Color("22") // empty bar fill
colDim = lipgloss.Color("65") // secondary text
colAmber = lipgloss.Color("214") // warnings
colRed = lipgloss.Color("160") // errors
styleBorder = lipgloss.NewStyle(). styleBorder = lipgloss.NewStyle().
Border(lipgloss.DoubleBorder()). Border(lipgloss.RoundedBorder()).
BorderForeground(colDark). BorderForeground(lipgloss.Color("62")).
Padding(0, 1) Padding(0, 1)
styleTitle = lipgloss.NewStyle().Bold(true).Foreground(colBright) styleTitle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("212"))
styleHeader = lipgloss.NewStyle().Bold(true).Foreground(colGreen) styleHeader = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("39"))
styleTabActive = lipgloss.NewStyle(). styleTabActive = lipgloss.NewStyle().
Bold(true). Bold(true).
Foreground(lipgloss.Color("16")). Foreground(lipgloss.Color("16")).
Background(colGreen). Background(lipgloss.Color("62")).
Padding(0, 1) Padding(0, 1)
styleTabInactive = lipgloss.NewStyle(). styleTabInactive = lipgloss.NewStyle().
Foreground(colDim). Foreground(lipgloss.Color("240")).
Padding(0, 1) Padding(0, 1)
styleGood = lipgloss.NewStyle().Foreground(colGreen) styleGood = lipgloss.NewStyle().Foreground(lipgloss.Color("42"))
styleWarn = lipgloss.NewStyle().Foreground(colAmber) styleWarn = lipgloss.NewStyle().Foreground(lipgloss.Color("214"))
styleBad = lipgloss.NewStyle().Foreground(colRed) styleBad = lipgloss.NewStyle().Foreground(lipgloss.Color("196"))
styleDim = lipgloss.NewStyle().Foreground(colDim) styleDim = lipgloss.NewStyle().Foreground(lipgloss.Color("240"))
styleBar = lipgloss.NewStyle().Foreground(colGreen) styleBar = lipgloss.NewStyle().Foreground(lipgloss.Color("62"))
styleBarEmpty = lipgloss.NewStyle().Foreground(colFaint)
) )
// -- history state ------------------------------------------------------------ // -- history state ------------------------------------------------------------
const historyRefreshInterval = 5 * time.Minute
type historyState struct { type historyState struct {
entries []*parser.LogEntry
stats *parser.Stats stats *parser.Stats
buckets []parser.Bucket buckets []parser.Bucket
errors []parser.ErrorEntry
loaded bool loaded bool
loading bool loading bool
loadedAt time.Time
err error err error
} }
// -- messages ----------------------------------------------------------------- // -- messages -----------------------------------------------------------------
type tickMsg time.Time type tickMsg time.Time
type newLinesMsg []string type newLineMsg string
type sysStatsMsg struct { type sysStatsMsg struct {
cpu float64 cpu float64
memUsed int64 memUsed int64
@ -105,7 +103,7 @@ type sysStatsMsg struct {
} }
type historyLoadedMsg struct { type historyLoadedMsg struct {
tab viewTab tab viewTab
agg *parser.AggregatedHistory entries []*parser.LogEntry
err error err error
} }
type errMsg struct{ err error } type errMsg struct{ err error }
@ -118,29 +116,27 @@ type model struct {
lineCh chan string lineCh chan string
doneCh chan struct{} doneCh chan struct{}
liveEntries []*parser.LogEntry
liveStats *parser.Stats liveStats *parser.Stats
liveStart time.Time liveStart time.Time
activeTab viewTab activeTab viewTab
history [2]*historyState history [3]*historyState
cpu float64 cpu float64
memUsed int64 memUsed int64
memTotal int64 memTotal int64
ticks int
width int width int
height int height int
err error err error
errorsScrollOffset int
} }
func initialModel(client *sshclient.Client, logPath string) model { func initialModel(client *sshclient.Client, logPath string) model {
m := model{ m := model{
client: client, client: client,
logPath: logPath, logPath: logPath,
lineCh: make(chan string, 8192), lineCh: make(chan string, 256),
doneCh: make(chan struct{}), doneCh: make(chan struct{}),
liveStats: parser.NewStats(), liveStats: parser.NewStats(),
liveStart: time.Now(), liveStart: time.Now(),
@ -178,8 +174,6 @@ func tick() tea.Cmd {
return tea.Tick(time.Second, func(t time.Time) tea.Msg { return tickMsg(t) }) return tea.Tick(time.Second, func(t time.Time) tea.Msg { return tickMsg(t) })
} }
const sysStatsEvery = 5 // seconds; each fetch opens SSH sessions and sleeps 0.5s server-side
func fetchSysStats(client *sshclient.Client) tea.Cmd { func fetchSysStats(client *sshclient.Client) tea.Cmd {
return func() tea.Msg { return func() tea.Msg {
cpu, used, total, err := client.SysStats() cpu, used, total, err := client.SysStats()
@ -190,39 +184,25 @@ func fetchSysStats(client *sshclient.Client) tea.Cmd {
} }
} }
// drainLines grabs everything currently buffered in the channel as one batch,
// so a traffic burst costs one Update/render cycle instead of one per line.
func drainLines(ch chan string) tea.Cmd { func drainLines(ch chan string) tea.Cmd {
return func() tea.Msg { return func() tea.Msg {
var batch []string
for {
select { select {
case line := <-ch: case line := <-ch:
batch = append(batch, line) return newLineMsg(line)
if len(batch) >= 10000 {
return newLinesMsg(batch)
}
default: default:
if len(batch) == 0 {
return nil return nil
} }
return newLinesMsg(batch)
}
}
} }
} }
func loadHistory(client *sshclient.Client, logPath string, tab viewTab) tea.Cmd { func loadHistory(client *sshclient.Client, logPath string, tab viewTab) tea.Cmd {
window := tabWindow(tab) since := time.Now().Add(-tabWindow(tab)).Unix()
since := time.Now().Add(-window).Unix()
maxAgeDays := int(window.Hours()/24) + 1
return func() tea.Msg { return func() tea.Msg {
agg, err := client.LoadAggregatedHistory(logPath, since, maxAgeDays) lines, err := client.LoadHistoricalLines(logPath, since)
if err != nil { if err != nil {
return historyLoadedMsg{tab: tab, err: err} return historyLoadedMsg{tab: tab, err: err}
} }
agg.FilterSince(since) return historyLoadedMsg{tab: tab, entries: parser.ParseLines(lines)}
return historyLoadedMsg{tab: tab, agg: agg}
} }
} }
@ -235,18 +215,6 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
m.width = msg.Width m.width = msg.Width
m.height = msg.Height m.height = msg.Height
case tea.MouseMsg:
if m.activeTab == tabErrors {
switch msg.Button {
case tea.MouseButtonWheelUp:
if m.errorsScrollOffset > 0 {
m.errorsScrollOffset--
}
case tea.MouseButtonWheelDown:
m.errorsScrollOffset++
}
}
case tea.KeyMsg: case tea.KeyMsg:
switch msg.String() { switch msg.String() {
case "q", "ctrl+c": case "q", "ctrl+c":
@ -254,42 +222,26 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
return m, tea.Quit return m, tea.Quit
case "1": case "1":
m.activeTab = tabLive m.activeTab = tabLive
m.errorsScrollOffset = 0
case "2": case "2":
m.activeTab = tabDay m.activeTab = tabDay
m.errorsScrollOffset = 0
return m, m.ensureHistory(tabDay) return m, m.ensureHistory(tabDay)
case "3": case "3":
m.activeTab = tabWeek m.activeTab = tabWeek
m.errorsScrollOffset = 0
return m, m.ensureHistory(tabWeek) return m, m.ensureHistory(tabWeek)
case "4": case "4":
m.activeTab = tabErrors m.activeTab = tabMonth
m.errorsScrollOffset = 0 return m, m.ensureHistory(tabMonth)
return m, m.ensureHistory(tabDay)
} }
case tickMsg: case tickMsg:
m.ticks++ return m, tea.Batch(tick(), drainLines(m.lineCh), fetchSysStats(m.client))
cmds := []tea.Cmd{tick(), drainLines(m.lineCh)}
if m.ticks%sysStatsEvery == 0 {
cmds = append(cmds, fetchSysStats(m.client))
}
if m.activeTab == tabErrors {
if cmd := m.maybeRefreshHistory(tabDay); cmd != nil {
cmds = append(cmds, cmd)
}
} else if m.activeTab != tabLive {
if cmd := m.maybeRefreshHistory(m.activeTab); cmd != nil {
cmds = append(cmds, cmd)
}
}
return m, tea.Batch(cmds...)
case newLinesMsg: case newLineMsg:
for _, line := range msg { if e := parser.ParseLine(string(msg)); e != nil {
if e := parser.ParseLine(line); e != nil {
m.liveStats.Add(e) m.liveStats.Add(e)
m.liveEntries = append(m.liveEntries, e)
if len(m.liveEntries) > 10000 {
m.liveEntries = m.liveEntries[len(m.liveEntries)-10000:]
} }
} }
return m, drainLines(m.lineCh) return m, drainLines(m.lineCh)
@ -302,13 +254,11 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
h := m.history[idx] h := m.history[idx]
h.loading = false h.loading = false
h.loaded = true h.loaded = true
h.loadedAt = time.Now()
h.err = msg.err h.err = msg.err
if msg.err == nil && msg.agg != nil { if msg.err == nil {
h.stats = msg.agg.ToStats() h.entries = msg.entries
h.buckets = msg.agg.ToBuckets(tabBucketSize(msg.tab)) h.stats = parser.ComputeStats(msg.entries)
h.errors = msg.agg.RecentErrors(100) h.buckets = parser.Bucketize(msg.entries, tabBucketSize(msg.tab))
m.errorsScrollOffset = 0
} }
case errMsg: case errMsg:
@ -320,30 +270,10 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
func (m *model) ensureHistory(tab viewTab) tea.Cmd { func (m *model) ensureHistory(tab viewTab) tea.Cmd {
h := m.history[int(tab)-1] h := m.history[int(tab)-1]
if h.loading { if h.loaded || h.loading {
return nil
}
if !h.loaded {
h.loading = true // first load: show spinner
return loadHistory(m.client, m.logPath, tab)
}
if time.Since(h.loadedAt) > historyRefreshInterval {
// silent refresh: keep showing old data while new data loads
return loadHistory(m.client, m.logPath, tab)
}
return nil
}
// maybeRefreshHistory triggers a silent background reload for the active history
// tab if its data is older than historyRefreshInterval.
func (m *model) maybeRefreshHistory(tab viewTab) tea.Cmd {
h := m.history[int(tab)-1]
if h.loading || !h.loaded {
return nil
}
if time.Since(h.loadedAt) < historyRefreshInterval {
return nil return nil
} }
h.loading = true
return loadHistory(m.client, m.logPath, tab) return loadHistory(m.client, m.logPath, tab)
} }
@ -351,7 +281,7 @@ func (m *model) maybeRefreshHistory(tab viewTab) tea.Cmd {
func (m model) View() string { func (m model) View() string {
if m.err != nil { if m.err != nil {
return styleBad.Render(fmt.Sprintf("ERROR: %v\n\nPress q to quit.", m.err)) return styleBad.Render(fmt.Sprintf("Error: %v\n\nPress q to quit.", m.err))
} }
parts := []string{ parts := []string{
m.renderHeader(), m.renderHeader(),
@ -361,13 +291,13 @@ func (m model) View() string {
case tabLive: case tabLive:
parts = append(parts, m.renderLive()) parts = append(parts, m.renderLive())
case tabDay: case tabDay:
parts = append(parts, m.renderHistory(0, "LAST 24 HOURS")) parts = append(parts, m.renderHistory(0, "last 24 hours"))
case tabWeek: case tabWeek:
parts = append(parts, m.renderHistory(1, "LAST 7 DAYS")) parts = append(parts, m.renderHistory(1, "last 7 days"))
case tabErrors: case tabMonth:
parts = append(parts, m.renderErrors()) parts = append(parts, m.renderHistory(2, "last 30 days"))
} }
parts = append(parts, styleDim.Render(" [1] LIVE [2] 1 DAY [3] 1 WEEK [4] ERRORS [Q] QUIT")) parts = append(parts, styleDim.Render(" 1 live 2 day 3 week 4 month q quit"))
return lipgloss.JoinVertical(lipgloss.Left, parts...) return lipgloss.JoinVertical(lipgloss.Left, parts...)
} }
@ -389,21 +319,21 @@ func (m model) renderHeader() string {
memColor = styleWarn memColor = styleWarn
} }
row := strings.Join([]string{ row := strings.Join([]string{
styleTitle.Render("░▒▓ CADDYVIEW ▓▒░"), styleTitle.Render("caddyview"),
" ", " ",
styleHeader.Render("HOST: ") + m.client.Host(), styleHeader.Render("host: ") + m.client.Host(),
" ", " ",
styleHeader.Render("LOG: ") + styleDim.Render(m.logPath), styleHeader.Render("log: ") + styleDim.Render(m.logPath),
" ", " ",
styleHeader.Render("UP: ") + time.Since(m.liveStart).Round(time.Second).String(), styleHeader.Render("up: ") + time.Since(m.liveStart).Round(time.Second).String(),
" ", " ",
styleHeader.Render("CPU: ") + cpuColor.Render(fmt.Sprintf("%.1f%%", m.cpu)), styleHeader.Render("CPU: ") + cpuColor.Render(fmt.Sprintf("%.1f%%", m.cpu)),
" ", " ",
styleHeader.Render("MEM: ") + memColor.Render(fmt.Sprintf("%d/%d MB (%.0f%%)", m.memUsed, m.memTotal, memPct)), styleHeader.Render("MEM: ") + memColor.Render(fmt.Sprintf("%d/%d MB (%.0f%%)", m.memUsed, m.memTotal, memPct)),
}, "") }, "")
return lipgloss.NewStyle(). return lipgloss.NewStyle().
BorderBottom(true).BorderStyle(lipgloss.DoubleBorder()). BorderBottom(true).BorderStyle(lipgloss.NormalBorder()).
BorderForeground(colDark).Width(m.width). BorderForeground(lipgloss.Color("62")).Width(m.width).
Render(row) Render(row)
} }
@ -418,7 +348,7 @@ func (m model) renderTabBar() string {
} }
return lipgloss.NewStyle(). return lipgloss.NewStyle().
BorderBottom(true).BorderStyle(lipgloss.NormalBorder()). BorderBottom(true).BorderStyle(lipgloss.NormalBorder()).
BorderForeground(colDark).Width(m.width). BorderForeground(lipgloss.Color("62")).Width(m.width).
Render(strings.Join(tabs, " ")) Render(strings.Join(tabs, " "))
} }
@ -431,7 +361,7 @@ func (m model) renderLive() string {
rps = float64(m.liveStats.TotalRequests) / elapsed rps = float64(m.liveStats.TotalRequests) / elapsed
} }
statsBox := styleBorder.Render(strings.Join([]string{ statsBox := styleBorder.Render(strings.Join([]string{
styleHeader.Render("LIVE STATS"), styleHeader.Render("Live Stats"),
"", "",
fmt.Sprintf("Requests : %s", styleGood.Render(formatComma(m.liveStats.TotalRequests))), fmt.Sprintf("Requests : %s", styleGood.Render(formatComma(m.liveStats.TotalRequests))),
fmt.Sprintf("Req/sec : %s", styleGood.Render(fmt.Sprintf("%.2f", rps))), fmt.Sprintf("Req/sec : %s", styleGood.Render(fmt.Sprintf("%.2f", rps))),
@ -453,26 +383,22 @@ func (m model) renderHistory(idx int, label string) string {
h := m.history[idx] h := m.history[idx]
if h.loading { if h.loading {
return lipgloss.NewStyle().Padding(2, 4). return lipgloss.NewStyle().Padding(2, 4).
Render(styleWarn.Render("▒▒ LOADING HISTORY ▒▒")) Render(styleWarn.Render("⏳ Loading historical data…"))
} }
if !h.loaded { if !h.loaded {
return lipgloss.NewStyle().Padding(2, 4).Render(styleDim.Render("No data loaded.")) return lipgloss.NewStyle().Padding(2, 4).Render(styleDim.Render("No data loaded."))
} }
if h.err != nil { if h.err != nil {
return lipgloss.NewStyle().Padding(2, 4). return lipgloss.NewStyle().Padding(2, 4).
Render(styleBad.Render(fmt.Sprintf("ERROR: %v", h.err))) Render(styleBad.Render(fmt.Sprintf("Error: %v", h.err)))
} }
if h.stats == nil || h.stats.TotalRequests == 0 { if len(h.entries) == 0 {
return lipgloss.NewStyle().Padding(2, 4). return lipgloss.NewStyle().Padding(2, 4).
Render(styleDim.Render("No log entries found for this period.")) Render(styleDim.Render("No log entries found for this period."))
} }
// Append "updated X ago" to label so the chart title reflects freshness
age := time.Since(h.loadedAt).Round(time.Second)
labelWithAge := fmt.Sprintf("%s — updated %s ago", label, age)
tab := viewTab(idx + 1) tab := viewTab(idx + 1)
chart := m.renderBarChart(h.buckets, tabBucketSize(tab), labelWithAge, h.stats) chart := m.renderBarChart(h.buckets, tabBucketSize(tab), label, h.stats)
bottom := lipgloss.JoinHorizontal(lipgloss.Top, bottom := lipgloss.JoinHorizontal(lipgloss.Top,
m.renderPeriodStats(h.stats), m.renderPeriodStats(h.stats),
m.renderTopHosts(h.stats), m.renderTopHosts(h.stats),
@ -482,98 +408,6 @@ func (m model) renderHistory(idx int, label string) string {
return lipgloss.JoinVertical(lipgloss.Left, chart, bottom) return lipgloss.JoinVertical(lipgloss.Left, chart, bottom)
} }
// -- errors view --------------------------------------------------------------
func (m model) renderErrors() string {
h := m.history[0] // errors are loaded together with the 1 DAY history
if h.loading {
return lipgloss.NewStyle().Padding(2, 4).
Render(styleWarn.Render("▒▒ LOADING ERRORS ▒▒"))
}
if !h.loaded {
return lipgloss.NewStyle().Padding(2, 4).Render(styleDim.Render("No data loaded."))
}
if h.err != nil {
return lipgloss.NewStyle().Padding(2, 4).
Render(styleBad.Render(fmt.Sprintf("ERROR: %v", h.err)))
}
errs := h.errors
if len(errs) == 0 {
return lipgloss.NewStyle().Padding(2, 4).
Render(styleDim.Render("No 4xx/5xx requests found in the last 24 hours."))
}
age := time.Since(h.loadedAt).Round(time.Second)
title := fmt.Sprintf("RECENT 4xx/5xx ERRORS — %d entries — updated %s ago", len(errs), age)
// Column widths (responsive, but fixed for simplicity)
timeW := 19
statusW := 7
methodW := 7
hostW := 28
ipW := 16
uriW := m.width - timeW - statusW - methodW - hostW - ipW - 14
if uriW < 20 {
uriW = 20
}
header := fmt.Sprintf("%-*s %-*s %-*s %-*s %-*s %s",
timeW, "TIME",
statusW, "STATUS",
methodW, "METHOD",
hostW, "HOST",
ipW, "REMOTE IP",
"URI",
)
// Fixed-height overhead: header + tab bar + title/header rows + footer/borders.
const overhead = 10
maxRows := m.height - overhead
if maxRows < 3 {
maxRows = 3
}
// Clamp scroll offset.
if m.errorsScrollOffset > len(errs)-maxRows {
if len(errs) > maxRows {
m.errorsScrollOffset = len(errs) - maxRows
} else {
m.errorsScrollOffset = 0
}
}
if m.errorsScrollOffset < 0 {
m.errorsScrollOffset = 0
}
end := m.errorsScrollOffset + maxRows
if end > len(errs) {
end = len(errs)
}
visible := errs[m.errorsScrollOffset:end]
rows := []string{styleHeader.Render(title), "", styleHeader.Render(header)}
for _, e := range visible {
statusStr := fmt.Sprintf("%d", e.Status)
var statusStyled string
if e.Status >= 500 {
statusStyled = styleBad.Render(statusStr)
} else {
statusStyled = styleWarn.Render(statusStr)
}
host := truncate(e.Host, hostW-1)
uri := truncate(e.URI, uriW-1)
rows = append(rows, fmt.Sprintf("%-*s %-*s %-*s %-*s %-*s %s",
timeW, e.Time.Format("2006-01-02 15:04:05"),
statusW, statusStyled,
methodW, e.Method,
hostW, host,
ipW, e.RemoteIP,
uri,
))
}
return styleBorder.Width(m.width - 4).Render(strings.Join(rows, "\n"))
}
// -- bar chart ---------------------------------------------------------------- // -- bar chart ----------------------------------------------------------------
func (m model) renderBarChart(buckets []parser.Bucket, bucketSize time.Duration, label string, stats *parser.Stats) string { func (m model) renderBarChart(buckets []parser.Bucket, bucketSize time.Duration, label string, stats *parser.Stats) string {
@ -608,7 +442,7 @@ func (m model) renderBarChart(buckets []parser.Bucket, bucketSize time.Duration,
barMax = 10 barMax = 10
} }
title := fmt.Sprintf("REQUESTS / %s — %s — TOTAL: %s req, %s", title := fmt.Sprintf("Requests / %s — %s — total: %s req, %s",
bucketSizeLabel(bucketSize), label, bucketSizeLabel(bucketSize), label,
formatComma(stats.TotalRequests), formatBytes(stats.TotalBytes), formatComma(stats.TotalRequests), formatBytes(stats.TotalBytes),
) )
@ -619,11 +453,10 @@ func (m model) renderBarChart(buckets []parser.Bucket, bucketSize time.Duration,
if maxReqs > 0 { if maxReqs > 0 {
barLen = int(math.Round(float64(b.Requests) / float64(maxReqs) * float64(barMax))) barLen = int(math.Round(float64(b.Requests) / float64(maxReqs) * float64(barMax)))
} }
bar := styleBar.Render(strings.Repeat("▓", barLen)) + bar := strings.Repeat("█", barLen)
styleBarEmpty.Render(strings.Repeat("░", barMax-barLen))
rows = append(rows, fmt.Sprintf("%-*s %s %s", rows = append(rows, fmt.Sprintf("%-*s %s %s",
labelW, b.Time.Format(timeFmt), labelW, b.Time.Format(timeFmt),
bar, styleBar.Render(fmt.Sprintf("%-*s", barMax, bar)),
styleDim.Render(formatComma(b.Requests)), styleDim.Render(formatComma(b.Requests)),
)) ))
} }
@ -635,7 +468,7 @@ func (m model) renderBarChart(buckets []parser.Bucket, bucketSize time.Duration,
func (m model) renderPeriodStats(stats *parser.Stats) string { func (m model) renderPeriodStats(stats *parser.Stats) string {
return styleBorder.Render(strings.Join([]string{ return styleBorder.Render(strings.Join([]string{
styleHeader.Render("PERIOD STATS"), styleHeader.Render("Period Stats"),
"", "",
fmt.Sprintf("Requests : %s", styleGood.Render(formatComma(stats.TotalRequests))), fmt.Sprintf("Requests : %s", styleGood.Render(formatComma(stats.TotalRequests))),
fmt.Sprintf("Transfer : %s", formatBytes(stats.TotalBytes)), fmt.Sprintf("Transfer : %s", formatBytes(stats.TotalBytes)),
@ -644,7 +477,7 @@ func (m model) renderPeriodStats(stats *parser.Stats) string {
} }
func (m model) renderTopHosts(stats *parser.Stats) string { func (m model) renderTopHosts(stats *parser.Stats) string {
rows := []string{styleHeader.Render("TOP HOSTS"), ""} rows := []string{styleHeader.Render("Top Hosts"), ""}
for _, p := range topN(stats.TopHosts, 8) { for _, p := range topN(stats.TopHosts, 8) {
host := p.key host := p.key
if len(host) > 30 { if len(host) > 30 {
@ -659,7 +492,7 @@ func (m model) renderTopHosts(stats *parser.Stats) string {
} }
func (m model) renderTopIPs(stats *parser.Stats) string { func (m model) renderTopIPs(stats *parser.Stats) string {
rows := []string{styleHeader.Render("TOP IPS"), ""} rows := []string{styleHeader.Render("Top IPs"), ""}
for _, p := range topN(stats.TopIPs, 8) { for _, p := range topN(stats.TopIPs, 8) {
rows = append(rows, fmt.Sprintf("%-20s %s", p.key, styleGood.Render(formatComma(p.val)))) rows = append(rows, fmt.Sprintf("%-20s %s", p.key, styleGood.Render(formatComma(p.val))))
} }
@ -683,7 +516,7 @@ func (m model) renderStatusCodes(stats *parser.Stats) string {
groups["5xx"] += n groups["5xx"] += n
} }
} }
rows := []string{styleHeader.Render("STATUS CODES"), ""} rows := []string{styleHeader.Render("Status Codes"), ""}
for _, g := range []string{"2xx", "3xx", "4xx", "5xx"} { for _, g := range []string{"2xx", "3xx", "4xx", "5xx"} {
s := formatComma(groups[g]) s := formatComma(groups[g])
var colored string var colored string
@ -734,50 +567,33 @@ type kv struct {
val int64 val int64
} }
// topN returns the n highest entries. Ties are broken alphabetically so rows
// with equal counts keep a stable order between renders instead of flickering.
func topN(m map[string]int64, n int) []kv { func topN(m map[string]int64, n int) []kv {
pairs := make([]kv, 0, len(m)) pairs := make([]kv, 0, len(m))
for k, v := range m { for k, v := range m {
pairs = append(pairs, kv{k, v}) pairs = append(pairs, kv{k, v})
} }
sort.Slice(pairs, func(i, j int) bool { sort.Slice(pairs, func(i, j int) bool { return pairs[i].val > pairs[j].val })
if pairs[i].val != pairs[j].val {
return pairs[i].val > pairs[j].val
}
return pairs[i].key < pairs[j].key
})
if len(pairs) > n { if len(pairs) > n {
return pairs[:n] return pairs[:n]
} }
return pairs return pairs
} }
func truncate(s string, max int) string {
if max <= 0 {
return ""
}
if len(s) <= max {
return s
}
return s[:max-1] + "…"
}
func bucketSizeLabel(d time.Duration) string { func bucketSizeLabel(d time.Duration) string {
switch { switch {
case d >= 24*time.Hour: case d >= 24*time.Hour:
return "DAY" return "day"
case d >= time.Hour: case d >= time.Hour:
return fmt.Sprintf("%dH", int(d.Hours())) return fmt.Sprintf("%dh", int(d.Hours()))
default: default:
return fmt.Sprintf("%dM", int(d.Minutes())) return fmt.Sprintf("%dm", int(d.Minutes()))
} }
} }
// -- entry point -------------------------------------------------------------- // -- entry point --------------------------------------------------------------
func Run(client *sshclient.Client, logPath string) error { func Run(client *sshclient.Client, logPath string) error {
p := tea.NewProgram(initialModel(client, logPath), tea.WithAltScreen(), tea.WithMouseCellMotion()) p := tea.NewProgram(initialModel(client, logPath), tea.WithAltScreen())
_, err := p.Run() _, err := p.Run()
return err return err
} }

View file

@ -1,6 +1,6 @@
package main package main
import "git.janvete.com/seth/caddyview/cmd" import "github.com/janvete/caddyview/cmd"
func main() { func main() {
cmd.Execute() cmd.Execute()