init
This commit is contained in:
33
go.mod
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33
go.mod
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@ -0,0 +1,33 @@
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module shrunner
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go 1.24.3
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require (
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github.com/atotto/clipboard v0.1.4 // indirect
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github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
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github.com/catppuccin/go v0.3.0 // indirect
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github.com/charmbracelet/bubbles v0.21.0 // indirect
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github.com/charmbracelet/bubbletea v1.3.4 // indirect
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github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
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github.com/charmbracelet/huh v0.7.0 // indirect
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github.com/charmbracelet/lipgloss v1.1.0 // indirect
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github.com/charmbracelet/x/ansi v0.8.0 // indirect
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github.com/charmbracelet/x/cellbuf v0.0.13 // indirect
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github.com/charmbracelet/x/exp/strings v0.0.0-20240722160745-212f7b056ed0 // indirect
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github.com/charmbracelet/x/term v0.2.1 // indirect
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github.com/dustin/go-humanize v1.0.1 // indirect
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github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
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github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
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github.com/mattn/go-isatty v0.0.20 // indirect
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github.com/mattn/go-localereader v0.0.1 // indirect
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github.com/mattn/go-runewidth v0.0.16 // indirect
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github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
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github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
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github.com/muesli/cancelreader v0.2.2 // indirect
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github.com/muesli/termenv v0.16.0 // indirect
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github.com/rivo/uniseg v0.4.7 // indirect
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github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
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golang.org/x/sync v0.12.0 // indirect
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golang.org/x/sys v0.31.0 // indirect
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golang.org/x/text v0.23.0 // indirect
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)
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57
go.sum
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57
go.sum
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github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
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github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
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github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
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github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
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github.com/catppuccin/go v0.3.0 h1:d+0/YicIq+hSTo5oPuRi5kOpqkVA5tAsU6dNhvRu+aY=
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github.com/catppuccin/go v0.3.0/go.mod h1:8IHJuMGaUUjQM82qBrGNBv7LFq6JI3NnQCF6MOlZjpc=
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github.com/charmbracelet/bubbles v0.21.0 h1:9TdC97SdRVg/1aaXNVWfFH3nnLAwOXr8Fn6u6mfQdFs=
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github.com/charmbracelet/bubbles v0.21.0/go.mod h1:HF+v6QUR4HkEpz62dx7ym2xc71/KBHg+zKwJtMw+qtg=
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github.com/charmbracelet/bubbletea v1.3.4 h1:kCg7B+jSCFPLYRA52SDZjr51kG/fMUEoPoZrkaDHyoI=
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github.com/charmbracelet/bubbletea v1.3.4/go.mod h1:dtcUCyCGEX3g9tosuYiut3MXgY/Jsv9nKVdibKKRRXo=
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github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc h1:4pZI35227imm7yK2bGPcfpFEmuY1gc2YSTShr4iJBfs=
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github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc/go.mod h1:X4/0JoqgTIPSFcRA/P6INZzIuyqdFY5rm8tb41s9okk=
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github.com/charmbracelet/huh v0.7.0 h1:W8S1uyGETgj9Tuda3/JdVkc3x7DBLZYPZc4c+/rnRdc=
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github.com/charmbracelet/huh v0.7.0/go.mod h1:UGC3DZHlgOKHvHC07a5vHag41zzhpPFj34U92sOmyuk=
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github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
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github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
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github.com/charmbracelet/x/ansi v0.8.0 h1:9GTq3xq9caJW8ZrBTe0LIe2fvfLR/bYXKTx2llXn7xE=
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github.com/charmbracelet/x/ansi v0.8.0/go.mod h1:wdYl/ONOLHLIVmQaxbIYEC/cRKOQyjTkowiI4blgS9Q=
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github.com/charmbracelet/x/cellbuf v0.0.13 h1:/KBBKHuVRbq1lYx5BzEHBAFBP8VcQzJejZ/IA3iR28k=
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github.com/charmbracelet/x/cellbuf v0.0.13/go.mod h1:xe0nKWGd3eJgtqZRaN9RjMtK7xUYchjzPr7q6kcvCCs=
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github.com/charmbracelet/x/exp/strings v0.0.0-20240722160745-212f7b056ed0 h1:qko3AQ4gK1MTS/de7F5hPGx6/k1u0w4TeYmBFwzYVP4=
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github.com/charmbracelet/x/exp/strings v0.0.0-20240722160745-212f7b056ed0/go.mod h1:pBhA0ybfXv6hDjQUZ7hk1lVxBiUbupdw5R31yPUViVQ=
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github.com/charmbracelet/x/term v0.2.1 h1:AQeHeLZ1OqSXhrAWpYUtZyX1T3zVxfpZuEQMIQaGIAQ=
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github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
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github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
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github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
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github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4=
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github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
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github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
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github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
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github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
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github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
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github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4=
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github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88=
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github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
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github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
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github.com/mitchellh/hashstructure/v2 v2.0.2 h1:vGKWl0YJqUNxE8d+h8f6NJLcCJrgbhC4NcD46KavDd4=
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github.com/mitchellh/hashstructure/v2 v2.0.2/go.mod h1:MG3aRVU/N29oo/V/IhBX8GR/zz4kQkprJgF2EVszyDE=
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github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI=
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github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo=
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github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA=
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github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo=
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github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
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github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
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github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
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github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
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github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
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github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
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github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
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golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
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golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
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golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
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golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
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golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
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golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
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104
main.go
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104
main.go
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package main
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import (
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"fmt"
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"io"
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"net/http"
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"os"
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"strings"
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)
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// maxRedirects defines the maximum number of redirects to follow.
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const maxRedirects = 10
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// isValidURLAndFetchContent checks if the URL is valid and fetches its content.
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// It handles redirects and checks for the .sh extension.
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// It returns the content, a boolean indicating validity, and an error if any.
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func isValidURLAndFetchContent(url string, redirectCount int) ([]byte, bool, error) {
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if redirectCount > maxRedirects {
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return nil, false, fmt.Errorf("too many redirects")
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}
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// Check if the URL ends with .sh
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if strings.HasSuffix(strings.ToLower(url), ".sh") {
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// If it ends with .sh, try to download it directly
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fmt.Printf("Attempting to download: %s\n", url)
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resp, err := http.Get(url)
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if err != nil {
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return nil, false, fmt.Errorf("failed to download from %s: %w", url, err)
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}
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defer resp.Body.Close()
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if resp.StatusCode >= 200 && resp.StatusCode < 300 {
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content, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, false, fmt.Errorf("failed to read content from %s: %w", url, err)
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}
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return content, true, nil
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}
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// If status is not OK, but it ended with .sh, we treat it as a failed download for a .sh file.
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return nil, false, fmt.Errorf("failed to download %s: status code %d", url, resp.StatusCode)
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}
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// If it doesn't end with .sh, check for redirect
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fmt.Printf("URL %s does not end with .sh, checking for redirect...\n", url)
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client := &http.Client{
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CheckRedirect: func(req *http.Request, via []*http.Request) error {
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return http.ErrUseLastResponse // Do not follow redirects automatically
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},
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}
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resp, err := client.Get(url) // Using Get to be able to read body if needed, though Head is often used for just status/headers
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if err != nil {
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return nil, false, fmt.Errorf("failed to request %s: %w", url, err)
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}
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defer resp.Body.Close()
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switch resp.StatusCode {
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case http.StatusMovedPermanently, http.StatusFound, http.StatusSeeOther, http.StatusTemporaryRedirect, http.StatusPermanentRedirect:
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location, err := resp.Location()
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if err != nil {
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return nil, false, fmt.Errorf("failed to get redirect location from %s: %w", url, err)
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}
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fmt.Printf("Redirected to: %s\n", location.String())
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return isValidURLAndFetchContent(location.String(), redirectCount+1)
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default:
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// Not a .sh and not a redirect status code
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return nil, false, fmt.Errorf("URL %s does not end in .sh and did not redirect (status: %d)", url, resp.StatusCode)
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}
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}
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// hasShebang checks if the content starts with "#!".
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func hasShebang(content []byte) bool {
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return len(content) >= 2 && content[0] == '#' && content[1] == '!'
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}
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func main() {
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if len(os.Args) < 2 {
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fmt.Println("Usage: go run script_downloader.go <URL>")
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os.Exit(1)
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}
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initialURL := os.Args[1]
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content, isValid, err := isValidURLAndFetchContent(initialURL, 0)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error: %v\n", err)
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os.Exit(1)
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}
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if !isValid {
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// This case should ideally be covered by errors from isValidURLAndFetchContent
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fmt.Fprintf(os.Stderr, "The provided URL is invalid or does not point to a valid .sh file after redirects.\n")
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os.Exit(1)
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}
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if hasShebang(content) {
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fmt.Println("Valid script found. Content:")
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fmt.Println("--- SCRIPT START ---")
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fmt.Print(string(content))
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fmt.Println("--- SCRIPT END ---")
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} else {
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fmt.Fprintf(os.Stderr, "Error: The file from URL %s does not start with a shebang '#!'.\n", initialURL)
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os.Exit(1)
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}
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}
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Reference in New Issue
Block a user