| 1 | package main |
| 2 | |
| 3 | import( |
| 4 | "fmt" |
| 5 | "os" |
| 6 | |
| 7 | "io" |
| 8 | "io/ioutil" |
| 9 | "bufio" |
| 10 | |
| 11 | "strings" |
| 12 | "strconv" |
| 13 | |
| 14 | "net/http" |
| 15 | "net/url" |
| 16 | |
| 17 | "github.com/wsxiaoys/terminal/color" |
| 18 | ) |
| 19 | |
| 20 | /* holds our palette, or 16 ANSI colors (8 normal colors + bright complements) |
| 21 | and two foreground/background colors. colors are 3 byte arrays (RGB) */ |
| 22 | type ktPalette struct { |
| 23 | |
| 24 | black [3]byte |
| 25 | bblack [3]byte |
| 26 | |
| 27 | red [3]byte |
| 28 | bred [3]byte |
| 29 | |
| 30 | green [3]byte |
| 31 | bgreen [3]byte |
| 32 | |
| 33 | yellow [3]byte |
| 34 | byellow [3]byte |
| 35 | |
| 36 | blue [3]byte |
| 37 | bblue [3]byte |
| 38 | |
| 39 | purple [3]byte |
| 40 | bpurple [3]byte |
| 41 | |
| 42 | cyan [3]byte |
| 43 | bcyan [3]byte |
| 44 | |
| 45 | white [3]byte |
| 46 | bwhite [3]byte |
| 47 | |
| 48 | fg [3]byte |
| 49 | bg [3]byte |
| 50 | } |
| 51 | |
| 52 | /* the default "control" ANSI color set (boring) */ |
| 53 | var ansiColors = ktPalette { |
| 54 | |
| 55 | black : [3]byte {0,0,0}, |
| 56 | bblack : [3]byte {128,128,128}, |
| 57 | |
| 58 | red : [3]byte {128,0,0}, |
| 59 | bred : [3]byte {255,0,0}, |
| 60 | |
| 61 | green : [3]byte {0,128,0}, |
| 62 | bgreen : [3]byte {0,255,0}, |
| 63 | |
| 64 | yellow : [3]byte {128,128,0}, |
| 65 | byellow : [3]byte {255,255,0}, |
| 66 | |
| 67 | blue : [3]byte {0,0,128}, |
| 68 | bblue : [3]byte {0,0,255}, |
| 69 | |
| 70 | purple : [3]byte {128,0,128}, |
| 71 | bpurple : [3]byte {255,0,255}, |
| 72 | |
| 73 | cyan : [3]byte {0,128,128}, |
| 74 | bcyan : [3]byte {0,255,255}, |
| 75 | |
| 76 | white : [3]byte {128,128,128}, |
| 77 | bwhite : [3]byte {255,255,255}, |
| 78 | |
| 79 | fg : [3]byte {0,0,0}, |
| 80 | bg : [3]byte {255,255,255}, |
| 81 | } |
| 82 | |
| 83 | /* lets get our money's worth out of this utf-8 crap */ |
| 84 | var checkM = "✓" |
| 85 | var xM = "✗" |
| 86 | |
| 87 | /* parses a colorfile, returns palette struct. given a nil file pointer, |
| 88 | returns standard ANSI color set (our "control") */ |
| 89 | func parseColors(colorfile *os.File) (pal ktPalette, err error) { |
| 90 | |
| 91 | if colorfile == nil { return ansiColors, nil } |
| 92 | |
| 93 | ret := ktPalette {} |
| 94 | var e errConsumer |
| 95 | |
| 96 | scanner := bufio.NewScanner(colorfile) |
| 97 | for scanner.Scan() { |
| 98 | |
| 99 | if strings.Contains(scanner.Text(), "color") && |
| 100 | !strings.Contains(scanner.Text(), "!") { |
| 101 | |
| 102 | /* i am so sorry */ |
| 103 | cur := strings.Replace(scanner.Text(), " ", "", -1) |
| 104 | split := strings.Split(cur, ":") |
| 105 | hexColor := strings.Replace(split[1], "#", "", -1) |
| 106 | coNumStr := strings.Replace(split[0], "URxvt*color", "", -1) |
| 107 | |
| 108 | r, err := strconv.ParseUint(hexColor[0:2], 16, 8); e.Consume(err) |
| 109 | g, err := strconv.ParseUint(hexColor[2:4], 16, 8); e.Consume(err) |
| 110 | b, err := strconv.ParseUint(hexColor[4:], 16, 8); e.Consume(err) |
| 111 | |
| 112 | colorNo, err := strconv.Atoi(coNumStr); e.Consume(err) |
| 113 | |
| 114 | if e.err != nil { |
| 115 | return ktPalette{}, e.err |
| 116 | } |
| 117 | |
| 118 | switch(colorNo) { |
| 119 | case 0: ret.black[0] = byte(r); ret.black[1] = byte(g); ret.black[2] = byte(b) |
| 120 | case 1: ret.red[0] = byte(r); ret.red[1] = byte(g); ret.red[2] = byte(b) |
| 121 | case 2: ret.green[0] = byte(r); ret.green[1] = byte(g); ret.green[2] = byte(b) |
| 122 | case 3: ret.yellow[0] = byte(r); ret.yellow[1] = byte(g); ret.yellow[2] = byte(b) |
| 123 | case 4: ret.blue[0] = byte(r); ret.blue[1] = byte(g); ret.blue[2] = byte(b) |
| 124 | case 5: ret.purple[0] = byte(r); ret.purple[1] = byte(g); ret.purple[2] = byte(b) |
| 125 | case 6: ret.cyan[0] = byte(r); ret.cyan[1] = byte(g); ret.cyan[2] = byte(b) |
| 126 | case 7: ret.white[0] = byte(r); ret.white[1] = byte(g); ret.white[2] = byte(b) |
| 127 | case 8: ret.bblack[0] = byte(r); ret.bblack[1] = byte(g); ret.bblack[2] = byte(b) |
| 128 | case 9: ret.bred[0] = byte(r); ret.bred[1] = byte(g); ret.bred[2] = byte(b) |
| 129 | case 10: ret.bgreen[0] = byte(r); ret.bgreen[1] = byte(g); ret.bgreen[2] = byte(b) |
| 130 | case 11: ret.byellow[0] = byte(r); ret.byellow[1] = byte(g); ret.byellow[2] = byte(b) |
| 131 | case 12: ret.bblue[0] = byte(r); ret.bblue[1] = byte(g); ret.bblue[2] = byte(b) |
| 132 | case 13: ret.bpurple[0] = byte(r); ret.bpurple[1] = byte(g); ret.bpurple[2] = byte(b) |
| 133 | case 14: ret.bcyan[0] = byte(r); ret.bcyan[1] = byte(g); ret.bcyan[2] = byte(b) |
| 134 | case 15: ret.bwhite[0] = byte(r); ret.bwhite[1] = byte(g); ret.bwhite[2] = byte(b) |
| 135 | } |
| 136 | |
| 137 | } else if strings.Contains(scanner.Text(), "background") { |
| 138 | |
| 139 | hex := strings.Split(scanner.Text(), "#") |
| 140 | het := hex[1] |
| 141 | |
| 142 | r, err := strconv.ParseUint(het[0:2], 16, 8); e.Consume(err) |
| 143 | g, err := strconv.ParseUint(het[2:4], 16, 8); e.Consume(err) |
| 144 | b, err := strconv.ParseUint(het[4:], 16, 8); e.Consume(err) |
| 145 | |
| 146 | if e.err != nil { |
| 147 | return ktPalette{}, e.err |
| 148 | } |
| 149 | |
| 150 | ret.bg[0] = byte(r) |
| 151 | ret.bg[1] = byte(g) |
| 152 | ret.bg[2] = byte(b) |
| 153 | |
| 154 | } else if strings.Contains(scanner.Text(), "foreground") { |
| 155 | |
| 156 | hex := strings.Split(scanner.Text(), "#") |
| 157 | het := hex[1] |
| 158 | |
| 159 | r, err := strconv.ParseUint(het[0:2], 16, 8); e.Consume(err) |
| 160 | g, err := strconv.ParseUint(het[2:4], 16, 8); e.Consume(err) |
| 161 | b, err := strconv.ParseUint(het[4:], 16, 8); e.Consume(err) |
| 162 | |
| 163 | if e.err != nil { |
| 164 | return ktPalette{}, e.err |
| 165 | } |
| 166 | |
| 167 | ret.fg[0] = byte(r) |
| 168 | ret.fg[1] = byte(g) |
| 169 | ret.fg[2] = byte(b) |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | return ret, e.err |
| 174 | } |
| 175 | |
| 176 | var httpdStatus bool |
| 177 | |
| 178 | func ktInit(dirPrepend string, port int, colorfilePath string) error { |
| 179 | |
| 180 | httpdStatus = false |
| 181 | |
| 182 | color.Print("@yparsing colorfile :: @{|}") |
| 183 | file, err := os.Open(colorfilePath) |
| 184 | if err != nil { |
| 185 | color.Printf("@r[%s]@{|} - bad colorfile path\n", xM) |
| 186 | return fmt.Errorf("%s\n", "bad colorfile path") |
| 187 | } |
| 188 | |
| 189 | pal, err := parseColors(file) |
| 190 | |
| 191 | if err != nil { |
| 192 | color.Printf("@r[%s]@{|} - malformed colorfile [%s]\n", xM, err) |
| 193 | return fmt.Errorf("%s\n", "malformed colorfile") |
| 194 | } |
| 195 | |
| 196 | color.Printf("@g[%s]@{|}\n", checkM) |
| 197 | |
| 198 | if pal == ansiColors {} |
| 199 | |
| 200 | color.Printf("@yverifying & preprocessing colorsets@{|} :: @y[SKIP]\n") |
| 201 | color.Printf("@ygenerating transpositional colorspace@{|} :: @y[SKIP]\n") |
| 202 | |
| 203 | color.Printf("@ystarting httpd on port @b%d@{|} :: ", port) |
| 204 | http.HandleFunc("/kt/", transposePage) |
| 205 | |
| 206 | var portString string |
| 207 | fmt.Sprintf(portString, ":%d", port) |
| 208 | err = http.ListenAndServe(portString, nil) |
| 209 | if err != nil { |
| 210 | |
| 211 | color.Printf("@r[%s]@{-} - run me as root!\n", xM) |
| 212 | return fmt.Errorf("%s\n", "failed to start httpd") |
| 213 | } |
| 214 | |
| 215 | color.Printf("@g[%s]@{-}\n", checkM) |
| 216 | |
| 217 | return nil |
| 218 | } |
| 219 | |
| 220 | func transposePage(writer http.ResponseWriter, req *http.Request) { |
| 221 | |
| 222 | if !httpdStatus { |
| 223 | |
| 224 | httpdStatus = true |
| 225 | color.Printf("@g[%s]@{|}\n", checkM) |
| 226 | } |
| 227 | |
| 228 | if req.URL.Path == "/kt/" { |
| 229 | writer.Write([]byte("wtf")) |
| 230 | return |
| 231 | } |
| 232 | |
| 233 | fqdn := req.URL.Path[4:] |
| 234 | targetURL := fmt.Sprintf("http://%s", fqdn) |
| 235 | |
| 236 | resp, err := http.Get(targetURL) |
| 237 | |
| 238 | if err != nil || resp.StatusCode != 200 { |
| 239 | |
| 240 | io.WriteString(writer, "failed to get that page! -kt\n") |
| 241 | io.WriteString(writer, targetURL + "\n") |
| 242 | |
| 243 | io.WriteString(writer, resp.Status) |
| 244 | return |
| 245 | } |
| 246 | |
| 247 | conType := resp.Header.Get("Content-Type") |
| 248 | |
| 249 | switch conType[0:strings.Index(conType, ";")] { |
| 250 | |
| 251 | case "text/html": |
| 252 | writer.Write(transposeHTML(bufio.NewScanner(resp.Body), fqdn)) |
| 253 | |
| 254 | case "text/css": |
| 255 | writer.Write(transposeCSS(bufio.NewScanner(resp.Body), fqdn)) |
| 256 | |
| 257 | default: |
| 258 | page, _ := ioutil.ReadAll(resp.Body) |
| 259 | writer.Write(page) |
| 260 | } |
| 261 | |
| 262 | resp.Body.Close() |
| 263 | } |
| 264 | |
| 265 | /* swap href="" & src="" */ |
| 266 | func transposeHTML(scan *bufio.Scanner, fqdn string) []byte { |
| 267 | |
| 268 | var ret []byte |
| 269 | var i int |
| 270 | |
| 271 | scan.Split(bufio.ScanWords) |
| 272 | for scan.Scan() { |
| 273 | |
| 274 | i++ |
| 275 | cur := scan.Text() |
| 276 | |
| 277 | //fmt.Printf("%s\n", cur) |
| 278 | |
| 279 | if len(cur) < 7 { |
| 280 | |
| 281 | |
| 282 | } else if(cur[0:6] == "href=\\") { |
| 283 | |
| 284 | urlStr := cur[7:strings.Index(cur[7:], "\\") + 7] |
| 285 | |
| 286 | u, err := url.Parse(urlStr) |
| 287 | if err != nil { |
| 288 | fmt.Printf("malformed URL: %s\n", urlStr) |
| 289 | } |
| 290 | |
| 291 | if u.Host == "" { |
| 292 | |
| 293 | u.Host = fmt.Sprintf("localhost/kt/%s", fqdn) |
| 294 | // cur = append(cur[0:6], |
| 295 | } |
| 296 | |
| 297 | fmt.Printf("[F] URL: %s // PATH: %s\n", u.Host, u.Path) |
| 298 | if u == u {} |
| 299 | |
| 300 | |
| 301 | } else if(cur[0:5] == "href=") { |
| 302 | |
| 303 | urlStr := cur[6:strings.Index(cur[6:], "\"") + 6] |
| 304 | |
| 305 | u, err := url.Parse(urlStr) |
| 306 | if err != nil { |
| 307 | fmt.Printf("malformed URL: %s\n", urlStr) |
| 308 | } |
| 309 | |
| 310 | if u == u {} |
| 311 | fmt.Printf("URL: %s // PATH: %s\n", u.Host, u.Path) |
| 312 | |
| 313 | } else if(cur[0:5] == "src=\"") { |
| 314 | |
| 315 | //fmt.Printf("%s\n", cur) |
| 316 | urlStr := cur[5:strings.Index(cur[5:], "\"") + 5] |
| 317 | |
| 318 | u, err := url.Parse(urlStr) |
| 319 | if err != nil { |
| 320 | fmt.Printf("malformed URL: %s\n", urlStr) |
| 321 | } |
| 322 | |
| 323 | if u.Host == "" { |
| 324 | |
| 325 | u.Host = fmt.Sprintf("localhost/kt/%s", fqdn) |
| 326 | // cur = append(cur[0:6], |
| 327 | |
| 328 | fmt.Printf("[S] URL: %s // PATH: %s\n", u.Host, u.Path) |
| 329 | if u == u {} |
| 330 | } |
| 331 | |
| 332 | } |
| 333 | |
| 334 | ret = append(ret, byte(' ')) |
| 335 | ret = append(ret, cur...) |
| 336 | } |
| 337 | |
| 338 | fmt.Printf("%d\n", i) |
| 339 | |
| 340 | return ret |
| 341 | } |
| 342 | |
| 343 | func transposeCSS(scan *bufio.Scanner, fqdn string) []byte { |
| 344 | |
| 345 | var ret []byte |
| 346 | |
| 347 | return ret |
| 348 | } |
| 349 | |
| 350 | func main() { |
| 351 | |
| 352 | err := ktInit("kolors", 999, "/home/kremlin/.Xresources") |
| 353 | |
| 354 | if err != nil {} |
| 355 | } |
| 356 | |
| 357 | type errConsumer struct { |
| 358 | err error |
| 359 | } |
| 360 | |
| 361 | func (e *errConsumer) Consume(err error) { |
| 362 | if e.err == nil && err != nil { |
| 363 | e.err = err |
| 364 | } |
| 365 | } |
| 366 | |