diff --git a/config/config.go b/config/config.go index 5a584b6..b4bd7c4 100644 --- a/config/config.go +++ b/config/config.go @@ -16,9 +16,6 @@ type Config struct { ContextSize int `yaml:"context_size"` APIKey string `yaml:"api_key"` - // SearXNG Configuration - SearXNGURL string `yaml:"searxng_url"` - // System Prompt Prompt string `yaml:"prompt"` @@ -73,9 +70,6 @@ func Load() (*Config, error) { if cfg.Model == "" { return nil, fmt.Errorf("model is required in config") } - if cfg.SearXNGURL == "" { - return nil, fmt.Errorf("searxng_url is required in config") - } if cfg.Prompt == "" { return nil, fmt.Errorf("prompt is required in config") } diff --git a/go.mod b/go.mod index 566741d..df0beb1 100644 --- a/go.mod +++ b/go.mod @@ -1,9 +1,10 @@ module tell-me -go 1.23.0 +go 1.24.0 require ( github.com/JohannesKaufmann/html-to-markdown v1.6.0 + github.com/PuerkitoBio/goquery v1.11.0 github.com/jlubawy/go-boilerpipe v0.4.0 github.com/modelcontextprotocol/go-sdk v1.1.0 github.com/sashabaranov/go-openai v1.41.2 @@ -11,10 +12,9 @@ require ( ) require ( - github.com/PuerkitoBio/goquery v1.9.2 // indirect - github.com/andybalholm/cascadia v1.3.2 // indirect + github.com/andybalholm/cascadia v1.3.3 // indirect github.com/google/jsonschema-go v0.3.0 // indirect github.com/yosida95/uritemplate/v3 v3.0.2 // indirect - golang.org/x/net v0.25.0 // indirect + golang.org/x/net v0.47.0 // indirect golang.org/x/oauth2 v0.30.0 // indirect ) diff --git a/go.sum b/go.sum index 1ad3024..a5712bb 100644 --- a/go.sum +++ b/go.sum @@ -1,11 +1,14 @@ github.com/JohannesKaufmann/html-to-markdown v1.6.0 h1:04VXMiE50YYfCfLboJCLcgqF5x+rHJnb1ssNmqpLH/k= github.com/JohannesKaufmann/html-to-markdown v1.6.0/go.mod h1:NUI78lGg/a7vpEJTz/0uOcYMaibytE4BUOQS8k78yPQ= -github.com/PuerkitoBio/goquery v1.9.2 h1:4/wZksC3KgkQw7SQgkKotmKljk0M6V8TUvA8Wb4yPeE= github.com/PuerkitoBio/goquery v1.9.2/go.mod h1:GHPCaP0ODyyxqcNoFGYlAprUFH81NuRPd0GX3Zu2Mvk= -github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss= +github.com/PuerkitoBio/goquery v1.11.0 h1:jZ7pwMQXIITcUXNH83LLk+txlaEy6NVOfTuP43xxfqw= +github.com/PuerkitoBio/goquery v1.11.0/go.mod h1:wQHgxUOU3JGuj3oD/QFfxUdlzW6xPHfqyHre6VMY4DQ= github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU= +github.com/andybalholm/cascadia v1.3.3 h1:AG2YHrzJIm4BZ19iwJ/DAua6Btl3IwJX+VI4kktS1LM= +github.com/andybalholm/cascadia v1.3.3/go.mod h1:xNd9bqTn98Ln4DwST8/nG+H0yuB8Hmgu1YHNnWw0GeA= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8= github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU= github.com/google/jsonschema-go v0.3.0 h1:6AH2TxVNtk3IlvkkhjrtbUc4S8AvO0Xii0DxIygDg+Q= @@ -39,11 +42,16 @@ github.com/yuin/goldmark v1.7.1 h1:3bajkSilaCbjdKVsKdZjZCLBNPL9pYzrCakKaf4U49U= github.com/yuin/goldmark v1.7.1/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= +golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc= golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU= golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M= golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8= +golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk= golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= +golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= +golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c= +golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c= golang.org/x/net v0.0.0-20190328230028-74de082e2cca/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= @@ -51,15 +59,22 @@ golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns= golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg= +golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk= golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44= golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8= -golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac= golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM= +golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4= +golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY= +golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU= golang.org/x/oauth2 v0.30.0 h1:dnDm7JmhM45NNpd8FDDeLhK6FwqbOf4MLCM9zb1BOHI= golang.org/x/oauth2 v0.30.0/go.mod h1:B++QgG3ZKulg6sRPGD/mqlHQs5rB3Ml9erfeDY7xKlU= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y= +golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= +golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= +golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= @@ -68,28 +83,37 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= +golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= +golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k= golang.org/x/term v0.7.0/go.mod h1:P32HKFT3hSsZrRxla30E9HqToFYAQPCMs/zFMBUFqPY= golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo= +golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU= golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk= golang.org/x/term v0.19.0/go.mod h1:2CuTdWZ7KHSQwUzKva0cbMg6q2DMI3Mmxp+gKJbskEk= golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY= +golang.org/x/term v0.27.0/go.mod h1:iMsnZpn0cago0GOrHO2+Y7u7JPn5AylBrcoWkElMTSM= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= +golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE= golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= +golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= +golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58= +golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk= golang.org/x/tools v0.34.0 h1:qIpSLOxeCYGg9TrcJokLBG4KFA6d795g0xkBkiESGlo= golang.org/x/tools v0.34.0/go.mod h1:pAP9OwEaY1CAW3HOmg3hLZC5Z0CCmzjAF2UQMSqNARg= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= diff --git a/llm/client.go b/llm/client.go index e5d3725..237c956 100644 --- a/llm/client.go +++ b/llm/client.go @@ -19,12 +19,11 @@ type Client struct { client *openai.Client model string contextSize int - searxngURL string mcpManager *mcp.Manager } // NewClient creates a new LLM client -func NewClient(apiURL, apiKey, model string, contextSize int, searxngURL string, mcpManager *mcp.Manager) *Client { +func NewClient(apiURL, apiKey, model string, contextSize int, mcpManager *mcp.Manager) *Client { config := openai.DefaultConfig(apiKey) config.BaseURL = apiURL @@ -34,7 +33,6 @@ func NewClient(apiURL, apiKey, model string, contextSize int, searxngURL string, client: client, model: model, contextSize: contextSize, - searxngURL: searxngURL, mcpManager: mcpManager, } } @@ -230,7 +228,7 @@ func (c *Client) handleToolCall(ctx context.Context, toolCall openai.ToolCall) s return fmt.Sprintf("Error parsing arguments: %v", err) } fmt.Printf("Searching: %s\n", args.Query) - result, err := tools.WebSearch(c.searxngURL, args.Query) + result, err := tools.WebSearch(args.Query) if err != nil { return fmt.Sprintf("Search error: %v", err) } diff --git a/main.go b/main.go index 4d4cde0..7d158bb 100644 --- a/main.go +++ b/main.go @@ -45,7 +45,6 @@ func main() { cfg.APIKey, cfg.Model, cfg.ContextSize, - cfg.SearXNGURL, mcpManager, ) @@ -84,7 +83,6 @@ func main() { fmt.Println("╚════════════════════════════════════════════════════════════════╝") fmt.Println() fmt.Printf("Using model: %s\n", cfg.Model) - fmt.Printf("SearXNG: %s\n", cfg.SearXNGURL) // Display MCP server status if len(cfg.MCPServers) > 0 { diff --git a/tools/search.go b/tools/search.go index aab67a0..e3a37ec 100644 --- a/tools/search.go +++ b/tools/search.go @@ -1,12 +1,20 @@ package tools import ( - "encoding/json" + "context" "fmt" - "io" "net/http" "net/url" + "os" "strings" + "time" + + "github.com/PuerkitoBio/goquery" +) + +const ( + maxRetries = 3 + timeout = 60 * time.Second ) // SearchResult represents a single search result @@ -16,66 +24,152 @@ type SearchResult struct { Content string `json:"content"` } -// SearchResponse represents the SearXNG API response -type SearchResponse struct { - Results []SearchResult `json:"results"` -} +// WebSearch performs a web search using DuckDuckGo +func WebSearch(query string) (string, error) { + ctx, cancel := context.WithTimeout(context.Background(), timeout) + defer cancel() -// WebSearch performs a web search using SearXNG -func WebSearch(searxngURL, query string) (string, error) { - // Build the search URL - searchURL := fmt.Sprintf("%s/search", strings.TrimSuffix(searxngURL, "/")) + // Create HTTP client with proxy support + transport := &http.Transport{ + Proxy: http.ProxyFromEnvironment, + } - // Create URL with query parameters - params := url.Values{} - params.Add("q", query) - params.Add("format", "json") - params.Add("language", "en") + client := &http.Client{ + Timeout: timeout, + Transport: transport, + } - fullURL := fmt.Sprintf("%s?%s", searchURL, params.Encode()) - - // Make the request - resp, err := http.Get(fullURL) + // Perform search with retry logic + results, err := searchDuckDuckGo(ctx, client, query) if err != nil { - return "", fmt.Errorf("failed to perform search: %w", err) - } - defer resp.Body.Close() - - if resp.StatusCode != http.StatusOK { - body, _ := io.ReadAll(resp.Body) - return "", fmt.Errorf("search request failed with status %d: %s", resp.StatusCode, string(body)) - } - - // Parse the response - body, err := io.ReadAll(resp.Body) - if err != nil { - return "", fmt.Errorf("failed to read response: %w", err) - } - - var searchResp SearchResponse - if err := json.Unmarshal(body, &searchResp); err != nil { - return "", fmt.Errorf("failed to parse search results: %w", err) + return "", fmt.Errorf("DuckDuckGo search failed: %w", err) } // Format results as text - if len(searchResp.Results) == 0 { + if len(results) == 0 { return "No results found.", nil } - var results strings.Builder - results.WriteString(fmt.Sprintf("Found %d results:\n\n", len(searchResp.Results))) + var output strings.Builder + fmt.Fprintf(&output, "Found %d results:\n\n", len(results)) - for i, result := range searchResp.Results { + for i, result := range results { if i >= 10 { // Limit to top 10 results break } - results.WriteString(fmt.Sprintf("%d. %s\n", i+1, result.Title)) - results.WriteString(fmt.Sprintf(" URL: %s\n", result.URL)) + fmt.Fprintf(&output, "%d. %s\n", i+1, result.Title) + fmt.Fprintf(&output, " URL: %s\n", result.URL) if result.Content != "" { - results.WriteString(fmt.Sprintf(" %s\n", result.Content)) + fmt.Fprintf(&output, " %s\n", result.Content) } - results.WriteString("\n") + fmt.Fprintf(&output, "\n") } - return results.String(), nil + return output.String(), nil +} + +// searchDuckDuckGo performs the actual DuckDuckGo search +func searchDuckDuckGo(ctx context.Context, client *http.Client, query string) ([]SearchResult, error) { + // Build DuckDuckGo search URL + searchURL := fmt.Sprintf("https://html.duckduckgo.com/html/?q=%s", url.QueryEscape(query)) + + // Create request with proper headers + req, err := http.NewRequestWithContext(ctx, "GET", searchURL, nil) + if err != nil { + return nil, fmt.Errorf("failed to create search request: %w", err) + } + + // Set browser-like user agent + req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36") + req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8") + req.Header.Set("Accept-Language", "en-US,en;q=0.5") + + // Execute request with retry logic + resp, err := executeWithRetry(ctx, client, req, "search DuckDuckGo") + if err != nil { + return nil, err + } + defer resp.Body.Close() + + // Check response status + if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusAccepted { + return nil, fmt.Errorf("search request failed with status: %d %s", resp.StatusCode, resp.Status) + } + + // Parse HTML response + doc, err := goquery.NewDocumentFromReader(resp.Body) + if err != nil { + return nil, fmt.Errorf("failed to parse search results: %w", err) + } + + // Extract search results + var results []SearchResult + doc.Find(".web-result").Each(func(i int, s *goquery.Selection) { + titleNode := s.Find(".result__a") + title := strings.TrimSpace(titleNode.Text()) + info := strings.TrimSpace(s.Find(".result__snippet").Text()) + + // Extract URL + var resultURL string + if titleNode.Length() > 0 { + if href, exists := titleNode.Attr("href"); exists { + // Validate URL format + if strings.HasPrefix(href, "http://") || strings.HasPrefix(href, "https://") { + resultURL = href + } + } + } + + if title != "" && resultURL != "" { + results = append(results, SearchResult{ + Title: title, + URL: resultURL, + Content: info, + }) + } + }) + + return results, nil +} + +// executeWithRetry executes an HTTP request with exponential backoff retry logic +func executeWithRetry(ctx context.Context, client *http.Client, req *http.Request, operation string) (*http.Response, error) { + var resp *http.Response + var err error + + // Retry logic with exponential backoff + for attempt := 0; attempt <= maxRetries; attempt++ { + resp, err = client.Do(req) + if err == nil { + return resp, nil + } + + // Don't retry on the last attempt + if attempt == maxRetries { + break + } + + // Exponential backoff: 1s, 2s, 4s + backoffDuration := time.Duration(1<