From fa7c416f6622a25c7564837d9749f9cd698ef07e Mon Sep 17 00:00:00 2001 From: Carl Pearson Date: Fri, 30 May 2025 05:35:27 -0600 Subject: [PATCH] Initial commit --- .build.yaml | 33 ++ .ci/debian_setup_docker.sh | 17 + .dockerignore | 3 + Dockerfile | 28 ++ LICENSE | 661 +++++++++++++++++++++++++++++++++++++ README.md | 3 + client/client.go | 1 + cmd/client/main.go | 1 + cmd/server/main.go | 39 +++ config/config.go | 44 +++ go.mod | 18 + go.sum | 25 ++ handlers/image.go | 19 ++ handlers/middleware.go | 23 ++ handlers/upload.go | 66 ++++ store/store.go | 99 ++++++ 16 files changed, 1080 insertions(+) create mode 100644 .build.yaml create mode 100644 .ci/debian_setup_docker.sh create mode 100644 .dockerignore create mode 100644 Dockerfile create mode 100644 LICENSE create mode 100644 README.md create mode 100644 client/client.go create mode 100644 cmd/client/main.go create mode 100644 cmd/server/main.go create mode 100644 config/config.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 handlers/image.go create mode 100644 handlers/middleware.go create mode 100644 handlers/upload.go create mode 100644 store/store.go diff --git a/.build.yaml b/.build.yaml new file mode 100644 index 0000000..c2313d4 --- /dev/null +++ b/.build.yaml @@ -0,0 +1,33 @@ +image: debian/bookworm + +secrets: + - a19cbc4c-b6a1-414e-bf1c-1e06abc684eb + +tasks: + - print-env: | + echo "$JOB_ID" + echo "$JOB_URL" + echo "$BUILD_SUBMITTER" + echo "$BUILD_REASON" + echo "$GIT_REF" + - setup-env: | + sudo timedatectl set-timezone America/Denver + echo "SLUG=ghcr.io/cwpearson/replicate-jump-server" >> ~/.buildenv + echo "DATE=$(date +"%Y%m%d_%H%M")" >> ~/.buildenv + - prerequisites: | + bash replicate-jump-server/.ci/debian_setup_docker.sh + - build: | + cd replicate-jump-server + docker build . --file Dockerfile --build-arg GIT_SHA=$(git rev-parse HEAD) --tag "$SLUG:$DATE" --tag "$SLUG:latest" + - deploy: | + if [ "$GIT_REF" != "refs/heads/master" ]; then exit 0; fi + set +x + cat ~/.ghcr_token | docker login ghcr.io -u cwpearson --password-stdin + set -x + docker push "$SLUG:latest" + docker push "$SLUG:$DATE" + +triggers: + - action: email + condition: failure + to: Carl Pearson \ No newline at end of file diff --git a/.ci/debian_setup_docker.sh b/.ci/debian_setup_docker.sh new file mode 100644 index 0000000..53db75d --- /dev/null +++ b/.ci/debian_setup_docker.sh @@ -0,0 +1,17 @@ +# Add Docker's official GPG key: +sudo apt-get update +sudo apt-get install -y ca-certificates curl +sudo install -m 0755 -d /etc/apt/keyrings +sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc +sudo chmod a+r /etc/apt/keyrings/docker.asc + +# Add the repository to Apt sources: +echo \ + "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \ + $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \ + sudo tee /etc/apt/sources.list.d/docker.list > /dev/null +sudo apt-get update + +sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin + +sudo usermod -aG docker $(whoami) diff --git a/.dockerignore b/.dockerignore new file mode 100644 index 0000000..98df05d --- /dev/null +++ b/.dockerignore @@ -0,0 +1,3 @@ +README.md +.build.yaml +.ci \ No newline at end of file diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..87732e7 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,28 @@ +FROM golang:1.24.3-bookworm AS builder +ARG GIT_SHA="" + +RUN apt-get update && apt-get install -y --no-install-recommends --no-install-suggests wget + +ADD client /src/client +ADD cmd /src/cmd +ADD config /src/config +ADD handlers /src/handlers +ADD store /src/store +ADD go.mod /src/. +ADD go.sum /src/. + + +RUN cd /src && go mod tidy +RUN cd /src && go build \ + -ldflags "-X git.sr.ht/~cwpearson/replicate-jump-server/config.gitSHA=${GIT_SHA} -X git.sr.ht/~cwpearson/replicate-jump-server/config.buildDate=$(date +%Y-%m-%d)" \ + -o server cmd/server/main.go + +FROM debian:bookworm-slim + +RUN apt-get update && apt-get upgrade \ + && rm -rf /var/lib/apt/lists/* + +COPY --from=0 /src/server /opt/server + +WORKDIR /opt +CMD ["/opt/server"] diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..2d77280 --- /dev/null +++ b/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + A server for providing image URLs to replicate.com. No affiliation. + Copyright (C) 2025 Carl Pearson + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..3566f58 --- /dev/null +++ b/README.md @@ -0,0 +1,3 @@ +# replicate-jump-server + +A temporary staging area to provide image URIs to the replicate.com API diff --git a/client/client.go b/client/client.go new file mode 100644 index 0000000..da13c8e --- /dev/null +++ b/client/client.go @@ -0,0 +1 @@ +package client diff --git a/cmd/client/main.go b/cmd/client/main.go new file mode 100644 index 0000000..06ab7d0 --- /dev/null +++ b/cmd/client/main.go @@ -0,0 +1 @@ +package main diff --git a/cmd/server/main.go b/cmd/server/main.go new file mode 100644 index 0000000..f5ae649 --- /dev/null +++ b/cmd/server/main.go @@ -0,0 +1,39 @@ +package main + +import ( + "fmt" + "log" + + "git.sr.ht/~cwpearson/replicate-jump-server/config" + "git.sr.ht/~cwpearson/replicate-jump-server/handlers" + + "github.com/labstack/echo/v4" + "github.com/labstack/echo/v4/middleware" +) + +func main() { + + err := config.Init() + + if err != nil { + log.Fatal(err) + } + + port := config.Port() + + e := echo.New() + + // Middleware + e.Use(middleware.Logger()) + e.Use(middleware.Recover()) + + // Upload endpoint + e.POST("/upload", handlers.UploadPost, handlers.AuthMiddleware) + + // Retrieve endpoint + e.GET("/image/:id", handlers.ImageGet, handlers.AuthMiddleware) + + // Start server + fmt.Println("Server starting on :" + port) + e.Logger.Fatal(e.Start(":" + port)) +} diff --git a/config/config.go b/config/config.go new file mode 100644 index 0000000..ae143ef --- /dev/null +++ b/config/config.go @@ -0,0 +1,44 @@ +package config + +import ( + "fmt" + "os" + "strings" +) + +var bearerToken string +var port string + +func Bearer() string { + return bearerToken +} + +func Port() string { + return port +} + +func readFromEnv(key string) (string, error) { + val, ok := os.LookupEnv(key) + if !ok { + return "", fmt.Errorf("must set %s", key) + } + val = strings.TrimSpace(val) + if val == "" { + return "", fmt.Errorf("empty string provided for %s", key) + } + + return val, nil +} + +func Init() error { + var err error + bearerToken, err = readFromEnv("R8_JUMP_SERVER_SECRET") + if err != nil { + return err + } + port, err = readFromEnv("R8_JUMP_SERVER_PORT") + if err != nil { + return err + } + return nil +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..d39a9b6 --- /dev/null +++ b/go.mod @@ -0,0 +1,18 @@ +module git.sr.ht/~cwpearson/replicate-jump-server + +go 1.23.0 + +require ( + github.com/google/uuid v1.6.0 // indirect + github.com/labstack/echo/v4 v4.13.4 // indirect + github.com/labstack/gommon v0.4.2 // indirect + github.com/mattn/go-colorable v0.1.14 // indirect + github.com/mattn/go-isatty v0.0.20 // indirect + github.com/valyala/bytebufferpool v1.0.0 // indirect + github.com/valyala/fasttemplate v1.2.2 // indirect + golang.org/x/crypto v0.38.0 // indirect + golang.org/x/net v0.40.0 // indirect + golang.org/x/sys v0.33.0 // indirect + golang.org/x/text v0.25.0 // indirect + golang.org/x/time v0.11.0 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..c5857a3 --- /dev/null +++ b/go.sum @@ -0,0 +1,25 @@ +github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0= +github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/labstack/echo/v4 v4.13.4 h1:oTZZW+T3s9gAu5L8vmzihV7/lkXGZuITzTQkTEhcXEA= +github.com/labstack/echo/v4 v4.13.4/go.mod h1:g63b33BZ5vZzcIUF8AtRH40DrTlXnx4UMC8rBdndmjQ= +github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0= +github.com/labstack/gommon v0.4.2/go.mod h1:QlUFxVM+SNXhDL/Z7YhocGIBYOiwB0mXm1+1bAPHPyU= +github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE= +github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8= +github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY= +github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y= +github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw= +github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc= +github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo= +github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ= +golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8= +golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw= +golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY= +golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds= +golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw= +golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k= +golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4= +golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA= +golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0= +golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg= diff --git a/handlers/image.go b/handlers/image.go new file mode 100644 index 0000000..8e07043 --- /dev/null +++ b/handlers/image.go @@ -0,0 +1,19 @@ +package handlers + +import ( + "net/http" + + "git.sr.ht/~cwpearson/replicate-jump-server/store" + "github.com/labstack/echo/v4" +) + +func ImageGet(c echo.Context) error { + id := c.Param("id") + + image, exists := store.Get(id) + if !exists { + return echo.NewHTTPError(http.StatusNotFound, "Image not found or expired") + } + + return c.Blob(http.StatusOK, image.ContentType, image.Data) +} diff --git a/handlers/middleware.go b/handlers/middleware.go new file mode 100644 index 0000000..8d65f31 --- /dev/null +++ b/handlers/middleware.go @@ -0,0 +1,23 @@ +package handlers + +import ( + "net/http" + + "github.com/labstack/echo/v4" + + "git.sr.ht/~cwpearson/replicate-jump-server/config" +) + +// AuthMiddleware validates the bearer token +func AuthMiddleware(next echo.HandlerFunc) echo.HandlerFunc { + return func(c echo.Context) error { + auth := c.Request().Header.Get("Authorization") + expectedAuth := "Bearer " + config.Bearer() + + if auth != expectedAuth { + return echo.NewHTTPError(http.StatusUnauthorized, "Invalid or missing bearer token") + } + + return next(c) + } +} diff --git a/handlers/upload.go b/handlers/upload.go new file mode 100644 index 0000000..6fcd87e --- /dev/null +++ b/handlers/upload.go @@ -0,0 +1,66 @@ +package handlers + +import ( + "bytes" + "io" + "net/http" + + "github.com/labstack/echo/v4" + + "git.sr.ht/~cwpearson/replicate-jump-server/store" +) + +// isImageContentType checks if the content type is a valid image +func isImageContentType(contentType string) bool { + validTypes := []string{ + "image/jpeg", + "image/jpg", + "image/png", + "image/gif", + "image/webp", + "image/bmp", + } + + for _, validType := range validTypes { + if contentType == validType { + return true + } + } + return false +} + +func UploadPost(c echo.Context) error { + // Get the uploaded file + file, err := c.FormFile("image") + if err != nil { + return echo.NewHTTPError(http.StatusBadRequest, "No image provided") + } + + // Open the file + src, err := file.Open() + if err != nil { + return echo.NewHTTPError(http.StatusInternalServerError, "Failed to open image") + } + defer src.Close() + + // Read file data + var buf bytes.Buffer + if _, err := io.Copy(&buf, src); err != nil { + return echo.NewHTTPError(http.StatusInternalServerError, "Failed to read image") + } + + // Detect content type + contentType := http.DetectContentType(buf.Bytes()) + + // Validate it's an image + if !isImageContentType(contentType) { + return echo.NewHTTPError(http.StatusBadRequest, "File is not a valid image") + } + + // Save image and get ID + id := store.Save(buf.Bytes(), contentType) + + return c.JSON(http.StatusOK, map[string]string{ + "id": id, + }) +} diff --git a/store/store.go b/store/store.go new file mode 100644 index 0000000..08d3f9a --- /dev/null +++ b/store/store.go @@ -0,0 +1,99 @@ +package store + +import ( + "log" + "sync" + "time" + + "github.com/google/uuid" +) + +// StoredImage represents an image with its data and expiration time +type Image struct { + Data []byte + ContentType string +} + +// ImageStore holds uploaded images in memory +type Store struct { + mu sync.RWMutex + images map[string]*Image +} + +// NewStore creates a new image store +func newStore() *Store { + s := &Store{ + images: make(map[string]*Image), + } + // Start cleanup goroutine + return s +} + +var store *Store + +// Get retrieves an image by ID +func (s *Store) Get(id string) (*Image, bool) { + s.mu.RLock() + defer s.mu.RUnlock() + + image, exists := s.images[id] + if !exists { + return nil, false + } else { + + // drop this guy 30 seconds after the first access + go func(id string) { + log.Println("delete", id, "in ~30s (after access)") + time.Sleep(time.Second * 30) + + log.Println("lock map...") + s.mu.Lock() + defer s.mu.Unlock() + log.Println("delete", id) + delete(s.images, id) + }(id) + } + + return image, true +} + +// Save stores an image and returns its ID +func (s *Store) Save(data []byte, contentType string) string { + s.mu.Lock() + defer s.mu.Unlock() + + id := uuid.New().String() + s.images[id] = &Image{ + Data: data, + ContentType: contentType, + } + + // start a goroutine to drop this guy in 1 hour + go func(id string) { + log.Println("delete", id, "in ~1h (after creation)") + time.Sleep(time.Hour * 1) + + log.Println("lock map...") + s.mu.Lock() + defer s.mu.Unlock() + log.Println("delete", id) + delete(s.images, id) + }(id) + + return id +} + +func Get(id string) (*Image, bool) { + if store == nil { + store = newStore() + } + + return store.Get(id) +} + +func Save(data []byte, contentType string) string { + if store == nil { + store = newStore() + } + return store.Save(data, contentType) +}