Merge pull request #13 from serkanalgur:serkanalgur/issue12

FileGetContent function

Author: serkanalgur

array_related_functions.go

@@ -139,3 +139,24 @@ func IsArray(v interface{}) bool {
 	}
 	return false
 }
+
+// InArray - Similar function of in_array in PHP
+// Original : https://www.php.net/manual/en/function.in-array.php
+// func inArray
+// needle : string, int
+// haystack : should be an array
+// strict : set true for type check
+// return boolean true / false
+func InArray(needle interface{}, haystack interface{}) bool {
+	switch reflect.TypeOf(haystack).Kind() {
+	default:
+		s := reflect.ValueOf(haystack)
+		for i := 0; i < s.Len(); i++ {
+			if reflect.DeepEqual(needle, s.Index(i).Interface()) == true {
+				return true
+			}
+		}
+	}
+	return false
+
+}

directory_filesystem.go

@@ -5,9 +5,11 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	"log"
 	"net/http"
 	"os"
 	"path/filepath"
+	"strings"
 	"syscall"
 	"time"
 )
@@ -201,6 +203,77 @@ func FileType(fs string) (string, error) {
 		return contentType, nil
 }
 
+
+// FileGetContents - Reads entire file into a string.
+// Original : https://www.php.net/manual/en/function.file-get-contents.php
+// This function is similar to file(), except that file_get_contents() returns the file in a string, starting at the specified offset up to maxlen bytes. On failure, file_get_contents() will return FALSE.
+// TODO : Context Implementation.
+func FileGetContents(path string, includePath bool, context []string, offset int, maxlen int) string {
+	var v string
+		if IsURL(path) {
+			includePath = false
+		}
+
+	if includePath == true {
+		fileHere := FileExists(path)
+		if fileHere {
+			file,_ := FOpen(path,os.O_RDONLY)
+
+			if offset >= 0 && maxlen != 0 {
+			var err error
+				r := bufio.NewReader(file)
+				if offset > 0 {
+				_, err := r.Discard(offset)
+					if err != nil {
+						log.Fatalln(err)
+					}
+				}
+					buf := new(strings.Builder)
+						_, err = io.CopyN(buf, r, int64(maxlen-offset))
+							if err != nil {
+								log.Fatal(err)
+							}
+					v = buf.String()
+
+			} else {
+				v = FRead(file,512)
+			}
+			FClose(file)
+		}
+	} else {
+		u, err := http.Get(path)
+		if err != nil {
+			log.Fatalln(err)
+		}
+
+		defer u.Body.Close()
+			if offset >= 0 && maxlen > 0 {
+				var err error
+					r := bufio.NewReader(u.Body)
+					if offset > 0 {
+					_, err := r.Discard(offset)
+						if err != nil {
+							log.Fatalln(err)
+						}
+					}
+						buf := new(strings.Builder)
+							_, err = io.CopyN(buf, r, int64(maxlen-offset))
+								if err != nil {
+									log.Fatal(err)
+								}
+						v = buf.String()
+			} else {
+				body, err := ioutil.ReadAll(u.Body)
+					if err != nil {
+						log.Fatalln(err)
+					}
+				v = string(body)
+			}
+	}
+
+	return v
+}
+
 // Glob - Find pathnames matching a pattern.
 // Original : https://www.php.net/manual/en/function.glob.php
 // The glob() function searches for all the pathnames matching pattern according to the rules used by the libc glob() function, which is similar to the rules used by common shells.

phpfuncs.go

@@ -0,0 +1,51 @@
+package phpfuncs
+
+import (
+	"net/url"
+	"regexp"
+	"strings"
+	"unicode/utf8"
+)
+
+// Since only this function is needed, this control function is taken from https://github.com/asaskevich/govalidator since it is an MIT license. Thanks for MIT license Alex!
+
+// Basic regular expressions for validating strings
+const (
+	maxURLRuneCount = 2083
+	minURLRuneCount = 3
+	IP                string = `(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))`
+	URLSchema         string = `((ftp|tcp|udp|wss?|https?):\/\/)`
+	URLUsername       string = `(\S+(:\S*)?@)`
+	URLPath           string = `((\/|\?|#)[^\s]*)`
+	URLPort           string = `(:(\d{1,5}))`
+	URLIP             string = `([1-9]\d?|1\d\d|2[01]\d|22[0-3]|24\d|25[0-5])(\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-5]))`
+	URLSubdomain      string = `((www\.)|([a-zA-Z0-9]+([-_\.]?[a-zA-Z0-9])*[a-zA-Z0-9]\.[a-zA-Z0-9]+))`
+	URL                      = `^` + URLSchema + `?` + URLUsername + `?` + `((` + URLIP + `|(\[` + IP + `\])|(([a-zA-Z0-9]([a-zA-Z0-9-_]+)?[a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*)|(` + URLSubdomain + `?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))\.?` + URLPort + `?` + URLPath + `?$`
+	SSN               string = `^\d{3}[- ]?\d{2}[- ]?\d{4}$`
+)
+
+var rxURL = regexp.MustCompile(URL)
+
+// IsURL function
+func IsURL(str string) bool {
+	if str == "" || utf8.RuneCountInString(str) >= maxURLRuneCount || len(str) <= minURLRuneCount || strings.HasPrefix(str, ".") {
+		return false
+	}
+	strTemp := str
+	if strings.Contains(str, ":") && !strings.Contains(str, "://") {
+		// support no indicated urlscheme but with colon for port number
+		// http:// is appended so url.Parse will succeed, strTemp used so it does not impact rxURL.MatchString
+		strTemp = "http://" + str
+	}
+	u, err := url.Parse(strTemp)
+	if err != nil {
+		return false
+	}
+	if strings.HasPrefix(u.Host, ".") {
+		return false
+	}
+	if u.Host == "" && (u.Path != "" && !strings.Contains(u.Path, ".")) {
+		return false
+	}
+	return rxURL.MatchString(str)
+}