|
| 1 | +package checks |
| 2 | + |
| 3 | +import ( |
| 4 | + "bytes" |
| 5 | + "encoding/json" |
| 6 | + "fmt" |
| 7 | + "io" |
| 8 | + "net/http" |
| 9 | + "os" |
| 10 | + "os/exec" |
| 11 | + "strings" |
| 12 | + "time" |
| 13 | + |
| 14 | + api "github.com/bootdotdev/bootdev/client" |
| 15 | + "github.com/spf13/cobra" |
| 16 | +) |
| 17 | + |
| 18 | +func runCLICommand(command api.CLIStepCLICommand, variables map[string]string) (result api.CLICommandResult) { |
| 19 | + finalCommand := InterpolateVariables(command.Command, variables) |
| 20 | + result.FinalCommand = finalCommand |
| 21 | + |
| 22 | + cmd := exec.Command("sh", "-c", finalCommand) |
| 23 | + cmd.Env = append(os.Environ(), "LANG=en_US.UTF-8") |
| 24 | + b, err := cmd.CombinedOutput() |
| 25 | + if ee, ok := err.(*exec.ExitError); ok { |
| 26 | + result.ExitCode = ee.ExitCode() |
| 27 | + } else if err != nil { |
| 28 | + result.ExitCode = -2 |
| 29 | + } |
| 30 | + result.Stdout = strings.TrimRight(string(b), " \n\t\r") |
| 31 | + result.Variables = variables |
| 32 | + return result |
| 33 | +} |
| 34 | + |
| 35 | +func runHTTPRequest( |
| 36 | + client *http.Client, |
| 37 | + baseURL string, |
| 38 | + variables map[string]string, |
| 39 | + requestStep api.CLIStepHTTPRequest, |
| 40 | +) ( |
| 41 | + result api.HTTPRequestResult, |
| 42 | +) { |
| 43 | + if baseURL == "" && requestStep.Request.FullURL == "" { |
| 44 | + cobra.CheckErr("no base URL or full URL provided") |
| 45 | + } |
| 46 | + |
| 47 | + finalBaseURL := strings.TrimSuffix(baseURL, "/") |
| 48 | + interpolatedPath := InterpolateVariables(requestStep.Request.Path, variables) |
| 49 | + completeURL := fmt.Sprintf("%s%s", finalBaseURL, interpolatedPath) |
| 50 | + if requestStep.Request.FullURL != "" { |
| 51 | + completeURL = InterpolateVariables(requestStep.Request.FullURL, variables) |
| 52 | + } |
| 53 | + |
| 54 | + var req *http.Request |
| 55 | + if requestStep.Request.BodyJSON != nil { |
| 56 | + dat, err := json.Marshal(requestStep.Request.BodyJSON) |
| 57 | + cobra.CheckErr(err) |
| 58 | + interpolatedBodyJSONStr := InterpolateVariables(string(dat), variables) |
| 59 | + req, err = http.NewRequest(requestStep.Request.Method, completeURL, |
| 60 | + bytes.NewBuffer([]byte(interpolatedBodyJSONStr)), |
| 61 | + ) |
| 62 | + if err != nil { |
| 63 | + cobra.CheckErr("Failed to create request") |
| 64 | + } |
| 65 | + req.Header.Add("Content-Type", "application/json") |
| 66 | + } else { |
| 67 | + var err error |
| 68 | + req, err = http.NewRequest(requestStep.Request.Method, completeURL, nil) |
| 69 | + if err != nil { |
| 70 | + cobra.CheckErr("Failed to create request") |
| 71 | + } |
| 72 | + } |
| 73 | + |
| 74 | + for k, v := range requestStep.Request.Headers { |
| 75 | + req.Header.Add(k, InterpolateVariables(v, variables)) |
| 76 | + } |
| 77 | + |
| 78 | + if requestStep.Request.BasicAuth != nil { |
| 79 | + req.SetBasicAuth(requestStep.Request.BasicAuth.Username, requestStep.Request.BasicAuth.Password) |
| 80 | + } |
| 81 | + |
| 82 | + if requestStep.Request.Actions.DelayRequestByMs != nil { |
| 83 | + time.Sleep(time.Duration(*requestStep.Request.Actions.DelayRequestByMs) * time.Millisecond) |
| 84 | + } |
| 85 | + |
| 86 | + resp, err := client.Do(req) |
| 87 | + if err != nil { |
| 88 | + result = api.HTTPRequestResult{Err: "Failed to fetch"} |
| 89 | + return result |
| 90 | + } |
| 91 | + defer resp.Body.Close() |
| 92 | + |
| 93 | + body, err := io.ReadAll(resp.Body) |
| 94 | + if err != nil { |
| 95 | + result = api.HTTPRequestResult{Err: "Failed to read response body"} |
| 96 | + return result |
| 97 | + } |
| 98 | + |
| 99 | + headers := make(map[string]string) |
| 100 | + for k, v := range resp.Header { |
| 101 | + headers[k] = strings.Join(v, ",") |
| 102 | + } |
| 103 | + |
| 104 | + parseVariables(body, requestStep.ResponseVariables, variables) |
| 105 | + |
| 106 | + result = api.HTTPRequestResult{ |
| 107 | + StatusCode: resp.StatusCode, |
| 108 | + ResponseHeaders: headers, |
| 109 | + BodyString: truncateAndStringifyBody(body), |
| 110 | + Variables: variables, |
| 111 | + Request: requestStep, |
| 112 | + } |
| 113 | + return result |
| 114 | +} |
| 115 | + |
| 116 | +func CLIChecks(cliData api.CLIData, submitBaseURL *string) (results []api.CLIStepResult) { |
| 117 | + client := &http.Client{} |
| 118 | + variables := make(map[string]string) |
| 119 | + results = make([]api.CLIStepResult, len(cliData.Steps)) |
| 120 | + |
| 121 | + // use cli arg url if specified or default lesson data url |
| 122 | + baseURL := "" |
| 123 | + if submitBaseURL != nil && *submitBaseURL != "" { |
| 124 | + baseURL = *submitBaseURL |
| 125 | + } else if cliData.BaseURL != nil && *cliData.BaseURL != "" { |
| 126 | + baseURL = *cliData.BaseURL |
| 127 | + } |
| 128 | + |
| 129 | + for i, step := range cliData.Steps { |
| 130 | + switch { |
| 131 | + case step.CLICommand != nil: |
| 132 | + result := runCLICommand(*step.CLICommand, variables) |
| 133 | + results[i].CLICommandResult = &result |
| 134 | + case step.HTTPRequest != nil: |
| 135 | + result := runHTTPRequest(client, baseURL, variables, *step.HTTPRequest) |
| 136 | + results[i].HTTPRequestResult = &result |
| 137 | + if result.Variables != nil { |
| 138 | + variables = result.Variables |
| 139 | + } |
| 140 | + default: |
| 141 | + cobra.CheckErr("unable to run lesson: missing step") |
| 142 | + } |
| 143 | + } |
| 144 | + return results |
| 145 | +} |
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