Question

当我将PrimeFaces键过滤器与regexp / [0-9] /一起使用时，在我的应用程序中进行测试时，我发现可以放置类似！ “＃$％＆，不允许使用其他值，例如* {或A-Z

我的代码是这样的：

# Auto leveling for image

    def levels(data, all_same = 0, clip = 0): 

        if data.mode not in ['RGB', 'CMYK']: 
            return data 

        ## get redistriputed histogram scalled smoothly
        lut = _makelut(data, all_same, clip) 

        ## update image points using histogram
        data = data.point(lut) 

        return data 

    def _find_hi_lo(lut, clip): 
        min = None 
        max = None 

        for i in range(len(lut)): 
            if lut[i] > clip: 
                min = i 
                break 

        lut.reverse() 

        for i in range(len(lut)): 
            if lut[i] > clip: 
                max = 255 - i 
                break 

        return min, max 

    def _scale(channels, min, max): 
        lut = []
        # hefny fix
        ratio = float(max-min)
        if ratio == 0:
            ratio = 1

        for i in range (channels): 
            for i in range(256): 
                value = int((i - min)*(255.0/ratio)) 
                if value < 0: 
                    value = 0 
                if value > 255: 
                    value = 255 
                lut.append(value) 

        return lut 


    def _makelut(data, all_same, clip): 

        histogram = data.histogram() 

        lut = [] 
        r, g, b, k = [], [], [], [] 

        channels = len(histogram)/256 

        for i in range(256): 
            r.append(histogram[i]) 
            g.append(histogram[256+i]) 
            b.append(histogram[512+i]) 
        if channels == 4: 
            for i in range(256): 
                k.append(histogram[768+i]) 


        rmin, rmax = _find_hi_lo(r, clip) 
        gmin, gmax = _find_hi_lo(g, clip) 
        bmin, bmax = _find_hi_lo(b, clip) 
        if channels == 4: 
            kmin, kmax = _find_hi_lo(k) 
        else: 
            kmin, kmax = 128, 128 

        if all_same == 1: 

            min_max = [rmin, gmin, bmin, kmin, rmax, gmax, bmax, kmax] 
            min_max.sort() 
            lut = _scale(channels, min_max[0], min_max[-1]) 

        else: 

            r_lut = _scale(1, rmin, rmax) 
            g_lut = _scale(1, gmin, gmax) 
            b_lut = _scale(1, bmin, bmax) 
            if channels == 4: 
                k_lut = _scale(1, kmin, kmax) 

            lut = [] 

            for i in range (256): 
                lut.append(r_lut[i]) 
            for i in range (256): 
                lut.append(g_lut[i]) 
            for i in range (256): 
                lut.append(b_lut[i]) 
            if channels == 4: 
                for i in range (256): 
                    lut.append(k_lut[i]) 

        return lut 

from PIL import ImageEnhance , ImageDraw , Image
img = Image.open(file_path)
img2 = levels(img)

注意：这会影响Firefox，但在Chrome中效果很好。

Answer 1

问题：https://github.com/primefaces/primefaces/issues/5110

PR已提交：https://github.com/primefaces/primefaces/pull/5111

此问题将在PF 7.1中修复。

作为注释，我记录了问题的出处：https://github.com/akzhan/jquery-keyfilter/issues/16

感谢您报告此问题！

PrimeFaces中带有正则表达式的Keyfilter允许！ “＃$％

1 个答案: